diff --git a/.dockerignore b/.dockerignore index 8b1bb4af5..adb6dac08 100644 --- a/.dockerignore +++ b/.dockerignore @@ -3,6 +3,7 @@ .vscode coverage +node_modules **/node_modules npm-debug.log Dockerfile* @@ -18,6 +19,7 @@ test-queries Contributing.md ISSUE_TEMPLATE.md lerna.json +.env .env.example .eslintrc.json .mocharc.js diff --git a/Dockerfile b/Dockerfile index 0b84a5307..d2c6df4f3 100644 --- a/Dockerfile +++ b/Dockerfile @@ -1,45 +1,50 @@ -FROM node:14.15.4-alpine3.10@sha256:fe215d05cdde4b7f2a0f546c88a8ddc4f5fa280a204acdfc2383afe901fd6d84 as build - -WORKDIR /home/node +FROM node:14.15.4-alpine3.12@sha256:55bf28ea11b18fd914e1242835ea3299ec76f5a034e8c6e42b2ede70064e338c as node +FROM node as build # Having multiple steps in builder doesn't increase the final image size # So having verbose steps for readability and caching should be the target -# 1. Copy package defs first they are the least likely to change +WORKDIR /opt + +# Copy package defs first they are the least likely to change # Keeping this order will least likely trigger full rebuild COPY packages/frontend/package*.json frontend/ -COPY packages/server/package*.json server/ - -# 2. Install packages -# Use dev environment to install dev packages for frontend build -ENV NODE_ENV development RUN npm --prefix frontend ci frontend -# Switch to production env for server install +COPY packages/server/package*.json server/ ENV NODE_ENV production RUN npm --prefix server ci server -# 3. build frontend to static files -# when testing container build, most propably not the frontend files are the ones -# that are changing. So having a separate copy and build step speeds up the container -# build. +# Copy remaining files across for frontend. Changes to these files +# will be more common than changes to the dependencies. This should +# speed up rebuilds. COPY packages/frontend frontend -RUN npm --prefix frontend run build -COPY packages/server server -FROM node:14.15.4-alpine3.10@sha256:fe215d05cdde4b7f2a0f546c88a8ddc4f5fa280a204acdfc2383afe901fd6d84 +WORKDIR /opt/frontend +RUN npm run build + +FROM node as runtime + +RUN apk add --no-cache tini=0.19.0-r0 + +# Use a non-root user for increased security. +USER node ENV NODE_ENV production -RUN mkdir -p frontend/dist server +# Copy dependencies and static files from build layer +COPY --from=build --chown=node /opt/frontend/dist /home/node/frontend/dist +COPY --from=build --chown=node /opt/server /home/node/server -# only copy in the build artifacts for the frontend -COPY --from=build --chown=node /home/node/frontend/dist frontend/dist -# copy the server with installed modules -COPY --from=build --chown=node /home/node/server server +# Run the application from the non root users home directory +WORKDIR /home/node/server -# change to no root user, node -USER node +# Copy remaining files across for the server. Changes to these +# files will be more common than changes to the dependencies. +# This should speed up rebuilds. +COPY --chown=node packages/server /home/node/server + +# Init for containers https://github.com/krallin/tini +ENTRYPOINT [ "/sbin/tini", "--" ] -WORKDIR /server CMD ["node", "bin/www"] diff --git a/packages/frontend/README.md b/packages/frontend/README.md index a56a2e3e6..ed6f498c5 100644 --- a/packages/frontend/README.md +++ b/packages/frontend/README.md @@ -32,7 +32,7 @@ npm run build ## Community -The Speckle Community hangs out on [the forum](https://discourse.speckle.works), do join and introduce yourself & feel free to ask us questions! +If in trouble, the Speckle Community hangs out on [the forum](https://discourse.speckle.works). Do join and introduce yourself! We're happy to help. ## License diff --git a/packages/server/modules/core/graph/resolvers/commits.js b/packages/server/modules/core/graph/resolvers/commits.js index 8d27a1acd..f43964628 100644 --- a/packages/server/modules/core/graph/resolvers/commits.js +++ b/packages/server/modules/core/graph/resolvers/commits.js @@ -128,7 +128,6 @@ module.exports = { subscribe: withFilter( () => pubsub.asyncIterator( [ COMMIT_CREATED ] ), async ( payload, variables, context ) => { await authorizeResolver( context.userId, payload.streamId, 'stream:reviewer' ) - return payload.streamId === variables.streamId } ) }, diff --git a/packages/server/readme.md b/packages/server/readme.md index 895776402..2dcd87e7b 100644 --- a/packages/server/readme.md +++ b/packages/server/readme.md @@ -12,18 +12,22 @@ We're working to stabilize the 2.0 API, and until then there will be breaking ch ## Introduction -The Speckle Server is a node application. To start it locally, simply: +The Speckle Server is a node application. To start it locally: -- ensure you have a local instance of postgres & redis running +First, ensure you have postgres and redis ready and running: + +- ensure you have a local instance of postgres running - create a postgres db called `speckle2_dev` -- then run `npm install` -- finally `npm run dev` will start the server. +- ensure you have an instance of redis running + +Finally, in the `packages/server` folder: + +- copy the `.env-example` file to `.env`, +- open and edit the `.env` file, filling in the required variables, +- run `npm install`, +- finally `npm run dev`, - check `localhost:3000/graphql` out! -You can customise your local deployment by editing and filling in a `.env` file. To do so: - -- copy the `.env-example` file to `.env` -- open and edit the `.env` file. ## Developing diff --git a/packages/viewer/.babelrc b/packages/viewer/.babelrc new file mode 100644 index 000000000..582d6bdca --- /dev/null +++ b/packages/viewer/.babelrc @@ -0,0 +1,22 @@ +{ + "ignore": ["node_modules/**/*"], + "presets": [ + ["@babel/preset-typescript"], + [ + "@babel/preset-env", + { + "loose": true, + "targets": { + "browsers": "last 2 versions, > 0.5%, ie >= 11", + "esmodules": true + } + } + ], + "@babel/preset-react" + ], + "plugins": [ + "@babel/plugin-proposal-class-properties", + "babel-plugin-add-module-exports", + "@babel/plugin-transform-classes" + ] +} diff --git a/packages/viewer/.eslintrc.js b/packages/viewer/.eslintrc.js new file mode 100644 index 000000000..8ca3fd747 --- /dev/null +++ b/packages/viewer/.eslintrc.js @@ -0,0 +1,51 @@ +// eslint-disable-next-line no-undef +module.exports = { + 'env': { + 'browser': true, + 'commonjs': true, + 'es2021': true + }, + 'extends': 'eslint:recommended', + 'parserOptions': { + 'ecmaVersion': 12, + 'sourceType': 'module' + }, + 'ignorePatterns': [ 'node_modules/*' ], + 'rules': { + 'indent': [ + 'error', + 2 + ], + 'linebreak-style': [ + 'error', + 'unix' + ], + 'quotes': [ + 'error', + 'single' + ], + 'semi': [ + 'error', + 'never' + ], + 'arrow-spacing': [ + 2, + { + 'before': true, + 'after': true + } + ], + 'array-bracket-spacing': [ 2, 'always' ], + 'object-curly-spacing': [ 1, 'always' ], + 'block-spacing': [ 2, 'always' ], + 'space-in-parens': [ 2, 'always' ], + 'keyword-spacing': 2, + 'space-unary-ops': [ + 2, + { + 'words': true, + 'nonwords': false + } + ] + } +} diff --git a/packages/viewer/dist/Speckle.js b/packages/viewer/dist/Speckle.js new file mode 100644 index 000000000..d143c050b --- /dev/null +++ b/packages/viewer/dist/Speckle.js @@ -0,0 +1,56276 @@ +(function webpackUniversalModuleDefinition(root, factory) { + if(typeof exports === 'object' && typeof module === 'object') + module.exports = factory(); + else if(typeof define === 'function' && define.amd) + define([], factory); + else if(typeof exports === 'object') + exports["Speckle"] = factory(); + else + root["Speckle"] = factory(); +})(this, function() { +return /******/ (() => { // webpackBootstrap +/******/ "use strict"; +/******/ var __webpack_modules__ = ({ + +/***/ "./src/index.js": +/*!**********************!*\ + !*** ./src/index.js ***! + \**********************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "Viewer": () => /* reexport safe */ _modules_Viewer__WEBPACK_IMPORTED_MODULE_0__.default, +/* harmony export */ "ApiClient": () => /* reexport safe */ _modules_Client__WEBPACK_IMPORTED_MODULE_1__.default +/* harmony export */ }); +/* harmony import */ var _modules_Viewer__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./modules/Viewer */ "./src/modules/Viewer.js"); +/* harmony import */ var _modules_Client__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./modules/Client */ "./src/modules/Client.js"); + + + + +/***/ }), + +/***/ "./src/modules/Client.js": +/*!*******************************!*\ + !*** ./src/modules/Client.js ***! + \*******************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ ObjectLoader +/* harmony export */ }); +/* harmony import */ var _Converter__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./Converter */ "./src/modules/Converter.js"); +function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } + +function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +function _awaitAsyncGenerator(value) { return new _AwaitValue(value); } + +function _wrapAsyncGenerator(fn) { return function () { return new _AsyncGenerator(fn.apply(this, arguments)); }; } + +function _AsyncGenerator(gen) { var front, back; function send(key, arg) { return new Promise(function (resolve, reject) { var request = { key: key, arg: arg, resolve: resolve, reject: reject, next: null }; if (back) { back = back.next = request; } else { front = back = request; resume(key, arg); } }); } function resume(key, arg) { try { var result = gen[key](arg); var value = result.value; var wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume(key === "return" ? "return" : "next", arg); return; } settle(result.done ? "return" : "normal", arg); }, function (err) { resume("throw", err); }); } catch (err) { settle("throw", err); } } function settle(type, value) { switch (type) { case "return": front.resolve({ value: value, done: true }); break; case "throw": front.reject(value); break; default: front.resolve({ value: value, done: false }); break; } front = front.next; if (front) { resume(front.key, front.arg); } else { back = null; } } this._invoke = send; if (typeof gen.return !== "function") { this.return = undefined; } } + +if (typeof Symbol === "function" && Symbol.asyncIterator) { _AsyncGenerator.prototype[Symbol.asyncIterator] = function () { return this; }; } + +_AsyncGenerator.prototype.next = function (arg) { return this._invoke("next", arg); }; + +_AsyncGenerator.prototype.throw = function (arg) { return this._invoke("throw", arg); }; + +_AsyncGenerator.prototype.return = function (arg) { return this._invoke("return", arg); }; + +function _AwaitValue(value) { this.wrapped = value; } + +function _asyncIterator(iterable) { var method; if (typeof Symbol !== "undefined") { if (Symbol.asyncIterator) { method = iterable[Symbol.asyncIterator]; if (method != null) return method.call(iterable); } if (Symbol.iterator) { method = iterable[Symbol.iterator]; if (method != null) return method.call(iterable); } } throw new TypeError("Object is not async iterable"); } + + + +var ObjectLoader = /*#__PURE__*/function () { + function ObjectLoader(_ref) { + var { + serverUrl, + streamId, + token, + objectId + } = _ref; + + _classCallCheck(this, ObjectLoader); + + this.INTERVAL_MS = 20; + this.TIMEOUT_MS = 180000; // three mins + + this.serverUrl = serverUrl; + this.streamId = streamId; + this.objectId = objectId; + this.token = token; + this.headers = { + 'Authorization': "Bearer " + this.token, + 'Accept': 'text/plain' + }; + this.requestUrl = this.serverUrl + "/objects/" + this.streamId + "/" + this.objectId; + this.promises = []; + this.intervals = {}; + this.buffer = []; + this.converter = new _Converter__WEBPACK_IMPORTED_MODULE_0__.default(this); + } + + _createClass(ObjectLoader, [{ + key: "getObject", + value: function () { + var _getObject = _asyncToGenerator(function* (id) { + if (this.buffer[id]) return this.buffer[id]; + var promise = new Promise((resolve, reject) => { + this.promises.push({ + id, + resolve, + reject + }); + var intervalId = setInterval(this.tryResolvePromise.bind(this), this.INTERVAL_MS, id, resolve, reject); + if (this.intervals[id]) console.log('Oupsie!'); + this.intervals[id] = { + interval: intervalId, + elapsed: 0 + }; + console.log(this.intervals[id].interval); + }); + return promise; + }); + + function getObject(_x) { + return _getObject.apply(this, arguments); + } + + return getObject; + }() + }, { + key: "tryResolvePromise", + value: function tryResolvePromise(id, resolve, reject) { + this.intervals[id].elapsed += this.INTERVAL_MS; + + if (this.buffer[id]) { + console.log("Resolved " + id + " (interval id " + this.intervals[id].interval + " )!"); + clearInterval(this.intervals[id].interval); + resolve(this.buffer[id]); + return; + } + + if (this.intervals[id].elapsed > this.TIMEOUT_MS) { + console.log("Timeout for resolving of " + id); + clearInterval(this.intervals[id].interval); + reject(); + } + } + }, { + key: "load", + value: function load() { + var _this = this; + + return _wrapAsyncGenerator(function* () { + var _iteratorNormalCompletion = true; + var _didIteratorError = false; + + var _iteratorError; + + try { + for (var _iterator = _asyncIterator(_this.getObjectIterator()), _step, _value; _step = yield _awaitAsyncGenerator(_iterator.next()), _iteratorNormalCompletion = _step.done, _value = yield _awaitAsyncGenerator(_step.value), !_iteratorNormalCompletion; _iteratorNormalCompletion = true) { + var line = _value; + + var { + id, + obj + } = _this.processLine(line); + + _this.buffer[id] = obj; + yield obj; + } + } catch (err) { + _didIteratorError = true; + _iteratorError = err; + } finally { + try { + if (!_iteratorNormalCompletion && _iterator.return != null) { + yield _awaitAsyncGenerator(_iterator.return()); + } + } finally { + if (_didIteratorError) { + throw _iteratorError; + } + } + } + })(); + } + }, { + key: "processLine", + value: function processLine(chunk) { + var pieces = chunk.split('\t'); + return { + id: pieces[0], + obj: JSON.parse(pieces[1]) + }; + } + }, { + key: "getObjectIterator", + value: function getObjectIterator() { + var _this2 = this; + + return _wrapAsyncGenerator(function* () { + var decoder = new TextDecoder(); + var response = yield _awaitAsyncGenerator(fetch(_this2.requestUrl, { + headers: _this2.headers + })); + var reader = response.body.getReader(); + var { + value: chunk, + done: readerDone + } = yield _awaitAsyncGenerator(reader.read()); + chunk = chunk ? decoder.decode(chunk) : ''; + var re = /\r\n|\n|\r/gm; + var startIndex = 0; + + while (true) { + var result = re.exec(chunk); + + if (!result) { + if (readerDone) break; + var remainder = chunk.substr(startIndex); + ({ + value: chunk, + done: readerDone + } = yield _awaitAsyncGenerator(reader.read())); + chunk = remainder + (chunk ? decoder.decode(chunk) : ''); + startIndex = re.lastIndex = 0; + continue; + } + + yield chunk.substring(startIndex, result.index); + startIndex = re.lastIndex; + } + + if (startIndex < chunk.length) { + yield chunk.substr(startIndex); + } + })(); + } + }, { + key: "sayHello", + value: function sayHello() { + console.log("Hi! stream " + this.streamId + " server " + this.serverUrl); + } + }]); + + return ObjectLoader; +}(); + + + +/***/ }), + +/***/ "./src/modules/Converter.js": +/*!**********************************!*\ + !*** ./src/modules/Converter.js ***! + \**********************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ Coverter +/* harmony export */ }); +/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var _Units__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./Units */ "./src/modules/Units.js"); +function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } + +function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + + + + +var Coverter = /*#__PURE__*/function () { + function Coverter(objectLoader) { + _classCallCheck(this, Coverter); + + this.objectLoader = objectLoader; + } + + _createClass(Coverter, [{ + key: "convert", + value: function () { + var _convert = _asyncToGenerator(function* (obj) { + var type; + if (obj.data) type = obj.data.speckle_type ? obj.data.speckle_type.split('.').reverse()[0] : 'Base';else type = obj.speckle_type ? obj.speckle_type.split('.').reverse()[0] : 'Base'; + console.log(type, !!this[type]); + if (this[type]) return yield this[type](obj.data || obj);else {// TODO: recurse through structure if it's a (base) object (?) + // console.log( `${type} not supported` ) + } + }); + + function convert(_x) { + return _convert.apply(this, arguments); + } + + return convert; + }() + /** + * Takes an array composed of chunked references and dechunks it. + * @param {[type]} arr [description] + * @return {[type]} [description] + */ + + }, { + key: "dechunk", + value: function () { + var _dechunk = _asyncToGenerator(function* (arr) { + // Handles pre-chunking objects, or arrs that have not been chunked + if (!arr[0].referencedId) return arr; + var dechunked = []; + + for (var ref of arr) { + var real = yield this.objectLoader.getObject(ref.referencedId); + dechunked.push(...real.data); + } + + return dechunked; + }); + + function dechunk(_x2) { + return _dechunk.apply(this, arguments); + } + + return dechunk; + }() + /** + * Resolves an object reference by waiting for the loader to load it up. + * @param {[type]} obj [description] + * @return {[type]} [description] + */ + + }, { + key: "resolveReference", + value: function () { + var _resolveReference = _asyncToGenerator(function* (obj) { + if (obj.referencedId) return yield this.objectLoader.getObject(obj.referencedId);else return obj; + }); + + function resolveReference(_x3) { + return _resolveReference.apply(this, arguments); + } + + return resolveReference; + }() // async Point( obj ) {} + // async Line( obj ) {} + // async Polyline( obj ) {} + // async Polycurve( obj ) {} + // async Curve( obj ) {} + // async Circle( obj ) {} + // async Arc( obj ) {} + // async Ellipse( obj ) {} + // async Surface( obj ) {} + + }, { + key: "Brep", + value: function () { + var _Brep = _asyncToGenerator(function* (obj) { + if (!obj) return; + return yield this.Mesh(yield this.resolveReference(obj.displayValue || obj.displayMesh)); + }); + + function Brep(_x4) { + return _Brep.apply(this, arguments); + } + + return Brep; + }() + }, { + key: "Mesh", + value: function () { + var _Mesh = _asyncToGenerator(function* (obj) { + if (!obj) return; + var conversionFactor = (0,_Units__WEBPACK_IMPORTED_MODULE_1__.getConversionFactor)(obj.units); + var buffer = new three__WEBPACK_IMPORTED_MODULE_0__.BufferGeometry(); + var indices = []; + var vertices = yield this.dechunk(obj.vertices); + var faces = yield this.dechunk(obj.faces); + var k = 0; + + while (k < faces.length) { + if (faces[k] === 1) { + // QUAD FACE + indices.push(faces[k + 1], faces[k + 2], faces[k + 3]); + indices.push(faces[k + 1], faces[k + 3], faces[k + 4]); + k += 5; + } else if (faces[k] === 0) { + // TRIANGLE FACE + indices.push(faces[k + 1], faces[k + 2], faces[k + 3]); + k += 4; + } else k += 20; + } + + buffer.setIndex(indices); + buffer.setAttribute('position', new three__WEBPACK_IMPORTED_MODULE_0__.Float32BufferAttribute(conversionFactor === 1 ? vertices : vertices.map(v => v * conversionFactor), 3)); + buffer.computeFaceNormals(); + buffer.computeVertexNormals(); + buffer.computeBoundingSphere(); + return buffer; + }); + + function Mesh(_x5) { + return _Mesh.apply(this, arguments); + } + + return Mesh; + }() + }]); + + return Coverter; +}(); + + + +/***/ }), + +/***/ "./src/modules/Units.js": +/*!******************************!*\ + !*** ./src/modules/Units.js ***! + \******************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "Units": () => /* binding */ Units, +/* harmony export */ "getConversionFactor": () => /* binding */ getConversionFactor, +/* harmony export */ "normaliseName": () => /* binding */ normaliseName +/* harmony export */ }); +var Units = { + Millimeters: 'mm', + Centimeters: 'cm', + Meters: 'm', + Kilometers: 'km', + Inches: 'in', + Feet: 'ft', + Yards: 'yd', + Miles: 'mi' +}; +function getConversionFactor(from, to) { + if (to === void 0) { + to = Units.Meters; + } + + from = normaliseName(from); + to = normaliseName(to); + + switch (from) { + // METRIC + case Units.Millimeters: + switch (to) { + case Units.Centimeters: + return 0.1; + + case Units.Meters: + return 0.001; + + case Units.Kilometers: + return 1e-6; + + case Units.Inches: + return 0.0393701; + + case Units.Feet: + return 0.00328084; + + case Units.Yards: + return 0.00109361; + + case Units.Miles: + return 6.21371e-7; + } + + break; + + case Units.Centimeters: + switch (to) { + case Units.Millimeters: + return 10; + + case Units.Meters: + return 0.01; + + case Units.Kilometers: + return 1e-5; + + case Units.Inches: + return 0.393701; + + case Units.Feet: + return 0.0328084; + + case Units.Yards: + return 0.0109361; + + case Units.Miles: + return 6.21371e-6; + } + + break; + + case Units.Meters: + switch (to) { + case Units.Millimeters: + return 1000; + + case Units.Centimeters: + return 100; + + case Units.Kilometers: + return 1000; + + case Units.Inches: + return 39.3701; + + case Units.Feet: + return 3.28084; + + case Units.Yards: + return 1.09361; + + case Units.Miles: + return 0.000621371; + } + + break; + + case Units.Kilometers: + switch (to) { + case Units.Millimeters: + return 1000000; + + case Units.Centimeters: + return 100000; + + case Units.Meters: + return 1000; + + case Units.Inches: + return 39370.1; + + case Units.Feet: + return 3280.84; + + case Units.Yards: + return 1093.61; + + case Units.Miles: + return 0.621371; + } + + break; + // IMPERIAL + + case Units.Inches: + switch (to) { + case Units.Millimeters: + return 25.4; + + case Units.Centimeters: + return 2.54; + + case Units.Meters: + return 0.0254; + + case Units.Kilometers: + return 2.54e-5; + + case Units.Feet: + return 0.0833333; + + case Units.Yards: + return 0.027777694; + + case Units.Miles: + return 1.57828e-5; + } + + break; + + case Units.Feet: + switch (to) { + case Units.Millimeters: + return 304.8; + + case Units.Centimeters: + return 30.48; + + case Units.Meters: + return 0.3048; + + case Units.Kilometers: + return 0.0003048; + + case Units.Inches: + return 12; + + case Units.Yards: + return 0.333332328; + + case Units.Miles: + return 0.000189394; + } + + break; + + case Units.Miles: + switch (to) { + case Units.Millimeters: + return 1.609e+6; + + case Units.Centimeters: + return 160934; + + case Units.Meters: + return 1609.34; + + case Units.Kilometers: + return 1.60934; + + case Units.Inches: + return 63360; + + case Units.Feet: + return 5280; + + case Units.Yards: + return 1759.99469184; + } + + break; + } + + return 1; +} +function normaliseName(unit) { + if (!unit) return Units.Meters; + + switch (unit.toLowerCase()) { + case 'mm': + case 'mil': + case 'millimeters': + case 'millimetres': + return Units.Millimeters; + + case 'cm': + case 'centimetre': + case 'centimeter': + case 'centimetres': + case 'centimeters': + return Units.Centimeters; + + case 'm': + case 'meter': + case 'metre': + case 'meters': + case 'metres': + return Units.Meters; + + case 'inches': + case 'inch': + case 'in': + return Units.Inches; + + case 'feet': + case 'foot': + case 'ft': + return Units.Feet; + + case 'yard': + case 'yards': + case 'yd': + return Units.Yards; + + case 'miles': + case 'mile': + case 'mi': + return Units.Miles; + + default: + return Units.Meters; + } +} + +/***/ }), + +/***/ "./src/modules/Viewer.js": +/*!*******************************!*\ + !*** ./src/modules/Viewer.js ***! + \*******************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ Viewer +/* harmony export */ }); +/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var three_examples_jsm_controls_OrbitControls_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! three/examples/jsm/controls/OrbitControls.js */ "./node_modules/three/examples/jsm/controls/OrbitControls.js"); +/* harmony import */ var three_examples_jsm_postprocessing_EffectComposer_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! three/examples/jsm/postprocessing/EffectComposer.js */ "./node_modules/three/examples/jsm/postprocessing/EffectComposer.js"); +/* harmony import */ var three_examples_jsm_postprocessing_SSAOPass_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! three/examples/jsm/postprocessing/SSAOPass.js */ "./node_modules/three/examples/jsm/postprocessing/SSAOPass.js"); +/* harmony import */ var three_examples_jsm_postprocessing_ShaderPass_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! three/examples/jsm/postprocessing/ShaderPass.js */ "./node_modules/three/examples/jsm/postprocessing/ShaderPass.js"); +/* harmony import */ var three_examples_jsm_shaders_SobelOperatorShader_js__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! three/examples/jsm/shaders/SobelOperatorShader.js */ "./node_modules/three/examples/jsm/shaders/SobelOperatorShader.js"); +/* harmony import */ var three_examples_jsm_libs_stats_module_js__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! three/examples/jsm/libs/stats.module.js */ "./node_modules/three/examples/jsm/libs/stats.module.js"); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + + + + + + + + + +var Viewer = /*#__PURE__*/function () { + function Viewer(_ref) { + var { + container + } = _ref; + + _classCallCheck(this, Viewer); + + this.container = container || document.getElementById('renderer'); + this.scene = new three__WEBPACK_IMPORTED_MODULE_0__.Scene(); + this.camera = new three__WEBPACK_IMPORTED_MODULE_0__.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 0.2, 10000); + this.camera.up.set(0, 0, 1); + this.camera.position.set(1, 1, 1); + this.renderer = new three__WEBPACK_IMPORTED_MODULE_0__.WebGLRenderer({ + antialias: true, + alpha: true + }); + this.renderer.setClearColor(0xcccccc, 0); + this.renderer.setPixelRatio(window.devicePixelRatio); + this.renderer.setSize(this.container.offsetWidth, this.container.offsetHeight); + this.container.appendChild(this.renderer.domElement); + this.controls = new three_examples_jsm_controls_OrbitControls_js__WEBPACK_IMPORTED_MODULE_1__.OrbitControls(this.camera, this.renderer.domElement); + this.controls.enableDamping = true; // an animation loop is required when either damping or auto-rotation are enabled + + this.controls.dampingFactor = 0.05; + this.controls.screenSpacePanning = true; + this.controls.maxPolarAngle = Math.PI / 2; + this.composer = new three_examples_jsm_postprocessing_EffectComposer_js__WEBPACK_IMPORTED_MODULE_2__.EffectComposer(this.renderer); // this.effectSobel = new ShaderPass( SobelOperatorShader ) + // this.effectSobel.uniforms[ 'resolution' ].value.x = this.container.offsetWidth * window.devicePixelRatio + // this.effectSobel.uniforms[ 'resolution' ].value.y = this.container.offsetHeight * window.devicePixelRatio + // this.composer.addPass( this.effectSobel ) + + this.ssaoPass = new three_examples_jsm_postprocessing_SSAOPass_js__WEBPACK_IMPORTED_MODULE_3__.SSAOPass(this.scene, this.camera, this.container.offsetWidth, this.container.offsetHeight); + this.ssaoPass.kernelRadius = 32; + this.ssaoPass.minDistance = 0.0002; + this.ssaoPass.maxDistance = 0.3; + this.composer.addPass(this.ssaoPass); + this.stats = new three_examples_jsm_libs_stats_module_js__WEBPACK_IMPORTED_MODULE_6__.default(); + this.container.appendChild(this.stats.dom); + window.addEventListener('resize', this.onWindowResize.bind(this), false); + this.initSimpleScene(); + this.animate(); + } + + _createClass(Viewer, [{ + key: "initSimpleScene", + value: function initSimpleScene() { + var ambientLight = new three__WEBPACK_IMPORTED_MODULE_0__.AmbientLight(0xffffff); + this.scene.add(ambientLight); + var axesHelper = new three__WEBPACK_IMPORTED_MODULE_0__.AxesHelper(50); + this.scene.add(axesHelper); + var group = new three__WEBPACK_IMPORTED_MODULE_0__.Group(); + this.scene.add(group); + var geometry = new three__WEBPACK_IMPORTED_MODULE_0__.BoxBufferGeometry(10, 10, 10); + var material = new three__WEBPACK_IMPORTED_MODULE_0__.MeshLambertMaterial({ + color: 0xD7D7D7 + }); + + for (var i = 0; i < 0; i++) { + var mesh = new three__WEBPACK_IMPORTED_MODULE_0__.Mesh(geometry, material); + mesh.position.x = Math.random() * 100 - 20; + mesh.position.y = Math.random() * 100 - 20; + mesh.position.z = Math.random() * 100 - 20; + mesh.rotation.x = Math.random(); + mesh.rotation.y = Math.random(); + mesh.rotation.z = Math.random(); + mesh.scale.setScalar(Math.random() * 1 + 0.2); + group.add(mesh); + } + } + }, { + key: "onWindowResize", + value: function onWindowResize() { + this.camera.aspect = this.container.offsetWidth / this.container.offsetHeight; + this.camera.updateProjectionMatrix(); + this.renderer.setSize(this.container.offsetWidth, this.container.offsetHeight); + this.composer.setSize(this.container.offsetWidth, this.container.offsetHeight); + } + }, { + key: "animate", + value: function animate() { + requestAnimationFrame(this.animate.bind(this)); + this.controls.update(); + this.stats.begin(); + this.render(); + this.stats.end(); + } + }, { + key: "render", + value: function render() { + this.composer.render(); + } + }, { + key: "addSolid", + value: function addSolid(bufferGeometry) { + var material = new three__WEBPACK_IMPORTED_MODULE_0__.MeshBasicMaterial({ + color: 0xBEBEBE + }); + var mesh = new three__WEBPACK_IMPORTED_MODULE_0__.Mesh(bufferGeometry, material); + this.scene.add(mesh); + } + }, { + key: "addTransparentSolid", + value: function addTransparentSolid() {} + }, { + key: "addLine", + value: function addLine() {} + }, { + key: "addPoint", + value: function addPoint() {} + }, { + key: "sayHello", + value: function sayHello() { + console.log('Hello from Viewer!'); + } + }]); + + return Viewer; +}(); + + + +/***/ }), + +/***/ "./node_modules/three/build/three.module.js": +/*!**************************************************!*\ + !*** ./node_modules/three/build/three.module.js ***! + \**************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "ACESFilmicToneMapping": () => /* binding */ ACESFilmicToneMapping, +/* harmony export */ "AddEquation": () => /* binding */ AddEquation, +/* harmony export */ "AddOperation": () => /* binding */ AddOperation, +/* harmony export */ "AdditiveAnimationBlendMode": () => /* binding */ AdditiveAnimationBlendMode, +/* harmony export */ "AdditiveBlending": () => /* binding */ AdditiveBlending, +/* harmony export */ "AlphaFormat": () => /* binding */ AlphaFormat, +/* harmony export */ "AlwaysDepth": () => /* binding */ AlwaysDepth, +/* harmony export */ "AlwaysStencilFunc": () => /* binding */ AlwaysStencilFunc, +/* harmony export */ "AmbientLight": () => /* binding */ AmbientLight, +/* harmony export */ "AmbientLightProbe": () => /* binding */ AmbientLightProbe, +/* harmony export */ "AnimationClip": () => /* binding */ AnimationClip, +/* harmony export */ "AnimationLoader": () => /* binding */ AnimationLoader, +/* harmony export */ "AnimationMixer": () => /* binding */ AnimationMixer, +/* harmony export */ "AnimationObjectGroup": () => /* binding */ AnimationObjectGroup, +/* harmony export */ "AnimationUtils": () => /* binding */ AnimationUtils, +/* harmony export */ "ArcCurve": () => /* binding */ ArcCurve, +/* harmony export */ "ArrayCamera": () => /* binding */ ArrayCamera, +/* harmony export */ "ArrowHelper": () => /* binding */ ArrowHelper, +/* harmony export */ "Audio": () => /* binding */ Audio, +/* harmony export */ "AudioAnalyser": () => /* binding */ AudioAnalyser, +/* harmony export */ "AudioContext": () => /* binding */ AudioContext, +/* harmony export */ "AudioListener": () => /* binding */ AudioListener, +/* harmony export */ "AudioLoader": () => /* binding */ AudioLoader, +/* harmony export */ "AxesHelper": () => /* binding */ AxesHelper, +/* harmony export */ "AxisHelper": () => /* binding */ AxisHelper, +/* harmony export */ "BackSide": () => /* binding */ BackSide, +/* harmony export */ "BasicDepthPacking": () => /* binding */ BasicDepthPacking, +/* harmony export */ "BasicShadowMap": () => /* binding */ BasicShadowMap, +/* harmony export */ "BinaryTextureLoader": () => /* binding */ BinaryTextureLoader, +/* harmony export */ "Bone": () => /* binding */ Bone, +/* harmony export */ "BooleanKeyframeTrack": () => /* binding */ BooleanKeyframeTrack, +/* harmony export */ "BoundingBoxHelper": () => /* binding */ BoundingBoxHelper, +/* harmony export */ "Box2": () => /* binding */ Box2, +/* harmony export */ "Box3": () => /* binding */ Box3, +/* harmony export */ "Box3Helper": () => /* binding */ Box3Helper, +/* harmony export */ "BoxBufferGeometry": () => /* binding */ BoxBufferGeometry, +/* harmony export */ "BoxGeometry": () => /* binding */ BoxGeometry, +/* harmony export */ "BoxHelper": () => /* binding */ BoxHelper, +/* harmony export */ "BufferAttribute": () => /* binding */ BufferAttribute, +/* harmony export */ "BufferGeometry": () => /* binding */ BufferGeometry, +/* harmony export */ "BufferGeometryLoader": () => /* binding */ BufferGeometryLoader, +/* harmony export */ "ByteType": () => /* binding */ ByteType, +/* harmony export */ "Cache": () => /* binding */ Cache, +/* harmony export */ "Camera": () => /* binding */ Camera, +/* harmony export */ "CameraHelper": () => /* binding */ CameraHelper, +/* harmony export */ "CanvasRenderer": () => /* binding */ CanvasRenderer, +/* harmony export */ "CanvasTexture": () => /* binding */ CanvasTexture, +/* harmony export */ "CatmullRomCurve3": () => /* binding */ CatmullRomCurve3, +/* harmony export */ "CineonToneMapping": () => /* binding */ CineonToneMapping, +/* harmony export */ "CircleBufferGeometry": () => /* binding */ CircleBufferGeometry, +/* harmony export */ "CircleGeometry": () => /* binding */ CircleGeometry, +/* harmony export */ "ClampToEdgeWrapping": () => /* binding */ ClampToEdgeWrapping, +/* harmony export */ "Clock": () => /* binding */ Clock, +/* harmony export */ "ClosedSplineCurve3": () => /* binding */ ClosedSplineCurve3, +/* harmony export */ "Color": () => /* binding */ Color, +/* harmony export */ "ColorKeyframeTrack": () => /* binding */ ColorKeyframeTrack, +/* harmony export */ "CompressedTexture": () => /* binding */ CompressedTexture, +/* harmony export */ "CompressedTextureLoader": () => /* binding */ CompressedTextureLoader, +/* harmony export */ "ConeBufferGeometry": () => /* binding */ ConeBufferGeometry, +/* harmony export */ "ConeGeometry": () => /* binding */ ConeGeometry, +/* harmony export */ "CubeCamera": () => /* binding */ CubeCamera, +/* harmony export */ "CubeGeometry": () => /* binding */ BoxGeometry, +/* harmony export */ "CubeReflectionMapping": () => /* binding */ CubeReflectionMapping, +/* harmony export */ "CubeRefractionMapping": () => /* binding */ CubeRefractionMapping, +/* harmony export */ "CubeTexture": () => /* binding */ CubeTexture, +/* harmony export */ "CubeTextureLoader": () => /* binding */ CubeTextureLoader, +/* harmony export */ "CubeUVReflectionMapping": () => /* binding */ CubeUVReflectionMapping, +/* harmony export */ "CubeUVRefractionMapping": () => /* binding */ CubeUVRefractionMapping, +/* harmony export */ "CubicBezierCurve": () => /* binding */ CubicBezierCurve, +/* harmony export */ "CubicBezierCurve3": () => /* binding */ CubicBezierCurve3, +/* harmony export */ "CubicInterpolant": () => /* binding */ CubicInterpolant, +/* harmony export */ "CullFaceBack": () => /* binding */ CullFaceBack, +/* harmony export */ "CullFaceFront": () => /* binding */ CullFaceFront, +/* harmony export */ "CullFaceFrontBack": () => /* binding */ CullFaceFrontBack, +/* harmony export */ "CullFaceNone": () => /* binding */ CullFaceNone, +/* harmony export */ "Curve": () => /* binding */ Curve, +/* harmony export */ "CurvePath": () => /* binding */ CurvePath, +/* harmony export */ "CustomBlending": () => /* binding */ CustomBlending, +/* harmony export */ "CustomToneMapping": () => /* binding */ CustomToneMapping, +/* harmony export */ "CylinderBufferGeometry": () => /* binding */ CylinderBufferGeometry, +/* harmony export */ "CylinderGeometry": () => /* binding */ CylinderGeometry, +/* harmony export */ "Cylindrical": () => /* binding */ Cylindrical, +/* harmony export */ "DataTexture": () => /* binding */ DataTexture, +/* harmony export */ "DataTexture2DArray": () => /* binding */ DataTexture2DArray, +/* harmony export */ "DataTexture3D": () => /* binding */ DataTexture3D, +/* harmony export */ "DataTextureLoader": () => /* binding */ DataTextureLoader, +/* harmony export */ "DataUtils": () => /* binding */ DataUtils, +/* harmony export */ "DecrementStencilOp": () => /* binding */ DecrementStencilOp, +/* harmony export */ "DecrementWrapStencilOp": () => /* binding */ DecrementWrapStencilOp, +/* harmony export */ "DefaultLoadingManager": () => /* binding */ DefaultLoadingManager, +/* harmony export */ "DepthFormat": () => /* binding */ DepthFormat, +/* harmony export */ "DepthStencilFormat": () => /* binding */ DepthStencilFormat, +/* harmony export */ "DepthTexture": () => /* binding */ DepthTexture, +/* harmony export */ "DirectionalLight": () => /* binding */ DirectionalLight, +/* harmony export */ "DirectionalLightHelper": () => /* binding */ DirectionalLightHelper, +/* harmony export */ "DiscreteInterpolant": () => /* binding */ DiscreteInterpolant, +/* harmony export */ "DodecahedronBufferGeometry": () => /* binding */ DodecahedronBufferGeometry, +/* harmony export */ "DodecahedronGeometry": () => /* binding */ DodecahedronGeometry, +/* harmony export */ "DoubleSide": () => /* binding */ DoubleSide, +/* harmony export */ "DstAlphaFactor": () => /* binding */ DstAlphaFactor, +/* harmony export */ "DstColorFactor": () => /* binding */ DstColorFactor, +/* harmony export */ "DynamicBufferAttribute": () => /* binding */ DynamicBufferAttribute, +/* harmony export */ "DynamicCopyUsage": () => /* binding */ DynamicCopyUsage, +/* harmony export */ "DynamicDrawUsage": () => /* binding */ DynamicDrawUsage, +/* harmony export */ "DynamicReadUsage": () => /* binding */ DynamicReadUsage, +/* harmony export */ "EdgesGeometry": () => /* binding */ EdgesGeometry, +/* harmony export */ "EdgesHelper": () => /* binding */ EdgesHelper, +/* harmony export */ "EllipseCurve": () => /* binding */ EllipseCurve, +/* harmony export */ "EqualDepth": () => /* binding */ EqualDepth, +/* harmony export */ "EqualStencilFunc": () => /* binding */ EqualStencilFunc, +/* harmony export */ "EquirectangularReflectionMapping": () => /* binding */ EquirectangularReflectionMapping, +/* harmony export */ "EquirectangularRefractionMapping": () => /* binding */ EquirectangularRefractionMapping, +/* harmony export */ "Euler": () => /* binding */ Euler, +/* harmony export */ "EventDispatcher": () => /* binding */ EventDispatcher, +/* harmony export */ "ExtrudeBufferGeometry": () => /* binding */ ExtrudeBufferGeometry, +/* harmony export */ "ExtrudeGeometry": () => /* binding */ ExtrudeGeometry, +/* harmony export */ "Face3": () => /* binding */ Face3, +/* harmony export */ "Face4": () => /* binding */ Face4, +/* harmony export */ "FaceColors": () => /* binding */ FaceColors, +/* harmony export */ "FileLoader": () => /* binding */ FileLoader, +/* harmony export */ "FlatShading": () => /* binding */ FlatShading, +/* harmony export */ "Float16BufferAttribute": () => /* binding */ Float16BufferAttribute, +/* harmony export */ "Float32Attribute": () => /* binding */ Float32Attribute, +/* harmony export */ "Float32BufferAttribute": () => /* binding */ Float32BufferAttribute, +/* harmony export */ "Float64Attribute": () => /* binding */ Float64Attribute, +/* harmony export */ "Float64BufferAttribute": () => /* binding */ Float64BufferAttribute, +/* harmony export */ "FloatType": () => /* binding */ FloatType, +/* harmony export */ "Fog": () => /* binding */ Fog, +/* harmony export */ "FogExp2": () => /* binding */ FogExp2, +/* harmony export */ "Font": () => /* binding */ Font, +/* harmony export */ "FontLoader": () => /* binding */ FontLoader, +/* harmony export */ "FrontSide": () => /* binding */ FrontSide, +/* harmony export */ "Frustum": () => /* binding */ Frustum, +/* harmony export */ "GLBufferAttribute": () => /* binding */ GLBufferAttribute, +/* harmony export */ "GLSL1": () => /* binding */ GLSL1, +/* harmony export */ "GLSL3": () => /* binding */ GLSL3, +/* harmony export */ "GammaEncoding": () => /* binding */ GammaEncoding, +/* harmony export */ "Geometry": () => /* binding */ Geometry, +/* harmony export */ "GeometryUtils": () => /* binding */ GeometryUtils, +/* harmony export */ "GreaterDepth": () => /* binding */ GreaterDepth, +/* harmony export */ "GreaterEqualDepth": () => /* binding */ GreaterEqualDepth, +/* harmony export */ "GreaterEqualStencilFunc": () => /* binding */ GreaterEqualStencilFunc, +/* harmony export */ "GreaterStencilFunc": () => /* binding */ GreaterStencilFunc, +/* harmony export */ "GridHelper": () => /* binding */ GridHelper, +/* harmony export */ "Group": () => /* binding */ Group, +/* harmony export */ "HalfFloatType": () => /* binding */ HalfFloatType, +/* harmony export */ "HemisphereLight": () => /* binding */ HemisphereLight, +/* harmony export */ "HemisphereLightHelper": () => /* binding */ HemisphereLightHelper, +/* harmony export */ "HemisphereLightProbe": () => /* binding */ HemisphereLightProbe, +/* harmony export */ "IcosahedronBufferGeometry": () => /* binding */ IcosahedronBufferGeometry, +/* harmony export */ "IcosahedronGeometry": () => /* binding */ IcosahedronGeometry, +/* harmony export */ "ImageBitmapLoader": () => /* binding */ ImageBitmapLoader, +/* harmony export */ "ImageLoader": () => /* binding */ ImageLoader, +/* harmony export */ "ImageUtils": () => /* binding */ ImageUtils, +/* harmony export */ "ImmediateRenderObject": () => /* binding */ ImmediateRenderObject, +/* harmony export */ "IncrementStencilOp": () => /* binding */ IncrementStencilOp, +/* harmony export */ "IncrementWrapStencilOp": () => /* binding */ IncrementWrapStencilOp, +/* harmony export */ "InstancedBufferAttribute": () => /* binding */ InstancedBufferAttribute, +/* harmony export */ "InstancedBufferGeometry": () => /* binding */ InstancedBufferGeometry, +/* harmony export */ "InstancedInterleavedBuffer": () => /* binding */ InstancedInterleavedBuffer, +/* harmony export */ "InstancedMesh": () => /* binding */ InstancedMesh, +/* harmony export */ "Int16Attribute": () => /* binding */ Int16Attribute, +/* harmony export */ "Int16BufferAttribute": () => /* binding */ Int16BufferAttribute, +/* harmony export */ "Int32Attribute": () => /* binding */ Int32Attribute, +/* harmony export */ "Int32BufferAttribute": () => /* binding */ Int32BufferAttribute, +/* harmony export */ "Int8Attribute": () => /* binding */ Int8Attribute, +/* harmony export */ "Int8BufferAttribute": () => /* binding */ Int8BufferAttribute, +/* harmony export */ "IntType": () => /* binding */ IntType, +/* harmony export */ "InterleavedBuffer": () => /* binding */ InterleavedBuffer, +/* harmony export */ "InterleavedBufferAttribute": () => /* binding */ InterleavedBufferAttribute, +/* harmony export */ "Interpolant": () => /* binding */ Interpolant, +/* harmony export */ "InterpolateDiscrete": () => /* binding */ InterpolateDiscrete, +/* harmony export */ "InterpolateLinear": () => /* binding */ InterpolateLinear, +/* harmony export */ "InterpolateSmooth": () => /* binding */ InterpolateSmooth, +/* harmony export */ "InvertStencilOp": () => /* binding */ InvertStencilOp, +/* harmony export */ "JSONLoader": () => /* binding */ JSONLoader, +/* harmony export */ "KeepStencilOp": () => /* binding */ KeepStencilOp, +/* harmony export */ "KeyframeTrack": () => /* binding */ KeyframeTrack, +/* harmony export */ "LOD": () => /* binding */ LOD, +/* harmony export */ "LatheBufferGeometry": () => /* binding */ LatheBufferGeometry, +/* harmony export */ "LatheGeometry": () => /* binding */ LatheGeometry, +/* harmony export */ "Layers": () => /* binding */ Layers, +/* harmony export */ "LensFlare": () => /* binding */ LensFlare, +/* harmony export */ "LessDepth": () => /* binding */ LessDepth, +/* harmony export */ "LessEqualDepth": () => /* binding */ LessEqualDepth, +/* harmony export */ "LessEqualStencilFunc": () => /* binding */ LessEqualStencilFunc, +/* harmony export */ "LessStencilFunc": () => /* binding */ LessStencilFunc, +/* harmony export */ "Light": () => /* binding */ Light, +/* harmony export */ "LightProbe": () => /* binding */ LightProbe, +/* harmony export */ "Line": () => /* binding */ Line, +/* harmony export */ "Line3": () => /* binding */ Line3, +/* harmony export */ "LineBasicMaterial": () => /* binding */ LineBasicMaterial, +/* harmony export */ "LineCurve": () => /* binding */ LineCurve, +/* harmony export */ "LineCurve3": () => /* binding */ LineCurve3, +/* harmony export */ "LineDashedMaterial": () => /* binding */ LineDashedMaterial, +/* harmony export */ "LineLoop": () => /* binding */ LineLoop, +/* harmony export */ "LinePieces": () => /* binding */ LinePieces, +/* harmony export */ "LineSegments": () => /* binding */ LineSegments, +/* harmony export */ "LineStrip": () => /* binding */ LineStrip, +/* harmony export */ "LinearEncoding": () => /* binding */ LinearEncoding, +/* harmony export */ "LinearFilter": () => /* binding */ LinearFilter, +/* harmony export */ "LinearInterpolant": () => /* binding */ LinearInterpolant, +/* harmony export */ "LinearMipMapLinearFilter": () => /* binding */ LinearMipMapLinearFilter, +/* harmony export */ "LinearMipMapNearestFilter": () => /* binding */ LinearMipMapNearestFilter, +/* harmony export */ "LinearMipmapLinearFilter": () => /* binding */ LinearMipmapLinearFilter, +/* harmony export */ "LinearMipmapNearestFilter": () => /* binding */ LinearMipmapNearestFilter, +/* harmony export */ "LinearToneMapping": () => /* binding */ LinearToneMapping, +/* harmony export */ "Loader": () => /* binding */ Loader, +/* harmony export */ "LoaderUtils": () => /* binding */ LoaderUtils, +/* harmony export */ "LoadingManager": () => /* binding */ LoadingManager, +/* harmony export */ "LogLuvEncoding": () => /* binding */ LogLuvEncoding, +/* harmony export */ "LoopOnce": () => /* binding */ LoopOnce, +/* harmony export */ "LoopPingPong": () => /* binding */ LoopPingPong, +/* harmony export */ "LoopRepeat": () => /* binding */ LoopRepeat, +/* harmony export */ "LuminanceAlphaFormat": () => /* binding */ LuminanceAlphaFormat, +/* harmony export */ "LuminanceFormat": () => /* binding */ LuminanceFormat, +/* harmony export */ "MOUSE": () => /* binding */ MOUSE, +/* harmony export */ "Material": () => /* binding */ Material, +/* harmony export */ "MaterialLoader": () => /* binding */ MaterialLoader, +/* harmony export */ "Math": () => /* binding */ MathUtils, +/* harmony export */ "MathUtils": () => /* binding */ MathUtils, +/* harmony export */ "Matrix3": () => /* binding */ Matrix3, +/* harmony export */ "Matrix4": () => /* binding */ Matrix4, +/* harmony export */ "MaxEquation": () => /* binding */ MaxEquation, +/* harmony export */ "Mesh": () => /* binding */ Mesh, +/* harmony export */ "MeshBasicMaterial": () => /* binding */ MeshBasicMaterial, +/* harmony export */ "MeshDepthMaterial": () => /* binding */ MeshDepthMaterial, +/* harmony export */ "MeshDistanceMaterial": () => /* binding */ MeshDistanceMaterial, +/* harmony export */ "MeshFaceMaterial": () => /* binding */ MeshFaceMaterial, +/* harmony export */ "MeshLambertMaterial": () => /* binding */ MeshLambertMaterial, +/* harmony export */ "MeshMatcapMaterial": () => /* binding */ MeshMatcapMaterial, +/* harmony export */ "MeshNormalMaterial": () => /* binding */ MeshNormalMaterial, +/* harmony export */ "MeshPhongMaterial": () => /* binding */ MeshPhongMaterial, +/* harmony export */ "MeshPhysicalMaterial": () => /* binding */ MeshPhysicalMaterial, +/* harmony export */ "MeshStandardMaterial": () => /* binding */ MeshStandardMaterial, +/* harmony export */ "MeshToonMaterial": () => /* binding */ MeshToonMaterial, +/* harmony export */ "MinEquation": () => /* binding */ MinEquation, +/* harmony export */ "MirroredRepeatWrapping": () => /* binding */ MirroredRepeatWrapping, +/* harmony export */ "MixOperation": () => /* binding */ MixOperation, +/* harmony export */ "MultiMaterial": () => /* binding */ MultiMaterial, +/* harmony export */ "MultiplyBlending": () => /* binding */ MultiplyBlending, +/* harmony export */ "MultiplyOperation": () => /* binding */ MultiplyOperation, +/* harmony export */ "NearestFilter": () => /* binding */ NearestFilter, +/* harmony export */ "NearestMipMapLinearFilter": () => /* binding */ NearestMipMapLinearFilter, +/* harmony export */ "NearestMipMapNearestFilter": () => /* binding */ NearestMipMapNearestFilter, +/* harmony export */ "NearestMipmapLinearFilter": () => /* binding */ NearestMipmapLinearFilter, +/* harmony export */ "NearestMipmapNearestFilter": () => /* binding */ NearestMipmapNearestFilter, +/* harmony export */ "NeverDepth": () => /* binding */ NeverDepth, +/* harmony export */ "NeverStencilFunc": () => /* binding */ NeverStencilFunc, +/* harmony export */ "NoBlending": () => /* binding */ NoBlending, +/* harmony export */ "NoColors": () => /* binding */ NoColors, +/* harmony export */ "NoToneMapping": () => /* binding */ NoToneMapping, +/* harmony export */ "NormalAnimationBlendMode": () => /* binding */ NormalAnimationBlendMode, +/* harmony export */ "NormalBlending": () => /* binding */ NormalBlending, +/* harmony export */ "NotEqualDepth": () => /* binding */ NotEqualDepth, +/* harmony export */ "NotEqualStencilFunc": () => /* binding */ NotEqualStencilFunc, +/* harmony export */ "NumberKeyframeTrack": () => /* binding */ NumberKeyframeTrack, +/* harmony export */ "Object3D": () => /* binding */ Object3D, +/* harmony export */ "ObjectLoader": () => /* binding */ ObjectLoader, +/* harmony export */ "ObjectSpaceNormalMap": () => /* binding */ ObjectSpaceNormalMap, +/* harmony export */ "OctahedronBufferGeometry": () => /* binding */ OctahedronBufferGeometry, +/* harmony export */ "OctahedronGeometry": () => /* binding */ OctahedronGeometry, +/* harmony export */ "OneFactor": () => /* binding */ OneFactor, +/* harmony export */ "OneMinusDstAlphaFactor": () => /* binding */ OneMinusDstAlphaFactor, +/* harmony export */ "OneMinusDstColorFactor": () => /* binding */ OneMinusDstColorFactor, +/* harmony export */ "OneMinusSrcAlphaFactor": () => /* binding */ OneMinusSrcAlphaFactor, +/* harmony export */ "OneMinusSrcColorFactor": () => /* binding */ OneMinusSrcColorFactor, +/* harmony export */ "OrthographicCamera": () => /* binding */ OrthographicCamera, +/* harmony export */ "PCFShadowMap": () => /* binding */ PCFShadowMap, +/* harmony export */ "PCFSoftShadowMap": () => /* binding */ PCFSoftShadowMap, +/* harmony export */ "PMREMGenerator": () => /* binding */ PMREMGenerator, +/* harmony export */ "ParametricBufferGeometry": () => /* binding */ ParametricBufferGeometry, +/* harmony export */ "ParametricGeometry": () => /* binding */ ParametricGeometry, +/* harmony export */ "Particle": () => /* binding */ Particle, +/* harmony export */ "ParticleBasicMaterial": () => /* binding */ ParticleBasicMaterial, +/* harmony export */ "ParticleSystem": () => /* binding */ ParticleSystem, +/* harmony export */ "ParticleSystemMaterial": () => /* binding */ ParticleSystemMaterial, +/* harmony export */ "Path": () => /* binding */ Path, +/* harmony export */ "PerspectiveCamera": () => /* binding */ PerspectiveCamera, +/* harmony export */ "Plane": () => /* binding */ Plane, +/* harmony export */ "PlaneBufferGeometry": () => /* binding */ PlaneBufferGeometry, +/* harmony export */ "PlaneGeometry": () => /* binding */ PlaneGeometry, +/* harmony export */ "PlaneHelper": () => /* binding */ PlaneHelper, +/* harmony export */ "PointCloud": () => /* binding */ PointCloud, +/* harmony export */ "PointCloudMaterial": () => /* binding */ PointCloudMaterial, +/* harmony export */ "PointLight": () => /* binding */ PointLight, +/* harmony export */ "PointLightHelper": () => /* binding */ PointLightHelper, +/* harmony export */ "Points": () => /* binding */ Points, +/* harmony export */ "PointsMaterial": () => /* binding */ PointsMaterial, +/* harmony export */ "PolarGridHelper": () => /* binding */ PolarGridHelper, +/* harmony export */ "PolyhedronBufferGeometry": () => /* binding */ PolyhedronBufferGeometry, +/* harmony export */ "PolyhedronGeometry": () => /* binding */ PolyhedronGeometry, +/* harmony export */ "PositionalAudio": () => /* binding */ PositionalAudio, +/* harmony export */ "PropertyBinding": () => /* binding */ PropertyBinding, +/* harmony export */ "PropertyMixer": () => /* binding */ PropertyMixer, +/* harmony export */ "QuadraticBezierCurve": () => /* binding */ QuadraticBezierCurve, +/* harmony export */ "QuadraticBezierCurve3": () => /* binding */ QuadraticBezierCurve3, +/* harmony export */ "Quaternion": () => /* binding */ Quaternion, +/* harmony export */ "QuaternionKeyframeTrack": () => /* binding */ QuaternionKeyframeTrack, +/* harmony export */ "QuaternionLinearInterpolant": () => /* binding */ QuaternionLinearInterpolant, +/* harmony export */ "REVISION": () => /* binding */ REVISION, +/* harmony export */ "RGBADepthPacking": () => /* binding */ RGBADepthPacking, +/* harmony export */ "RGBAFormat": () => /* binding */ RGBAFormat, +/* harmony export */ "RGBAIntegerFormat": () => /* binding */ RGBAIntegerFormat, +/* harmony export */ "RGBA_ASTC_10x10_Format": () => /* binding */ RGBA_ASTC_10x10_Format, +/* harmony export */ "RGBA_ASTC_10x5_Format": () => /* binding */ RGBA_ASTC_10x5_Format, +/* harmony export */ "RGBA_ASTC_10x6_Format": () => /* binding */ RGBA_ASTC_10x6_Format, +/* harmony export */ "RGBA_ASTC_10x8_Format": () => /* binding */ RGBA_ASTC_10x8_Format, +/* harmony export */ "RGBA_ASTC_12x10_Format": () => /* binding */ RGBA_ASTC_12x10_Format, +/* harmony export */ "RGBA_ASTC_12x12_Format": () => /* binding */ RGBA_ASTC_12x12_Format, +/* harmony export */ "RGBA_ASTC_4x4_Format": () => /* binding */ RGBA_ASTC_4x4_Format, +/* harmony export */ "RGBA_ASTC_5x4_Format": () => /* binding */ RGBA_ASTC_5x4_Format, +/* harmony export */ "RGBA_ASTC_5x5_Format": () => /* binding */ RGBA_ASTC_5x5_Format, +/* harmony export */ "RGBA_ASTC_6x5_Format": () => /* binding */ RGBA_ASTC_6x5_Format, +/* harmony export */ "RGBA_ASTC_6x6_Format": () => /* binding */ RGBA_ASTC_6x6_Format, +/* harmony export */ "RGBA_ASTC_8x5_Format": () => /* binding */ RGBA_ASTC_8x5_Format, +/* harmony export */ "RGBA_ASTC_8x6_Format": () => /* binding */ RGBA_ASTC_8x6_Format, +/* harmony export */ "RGBA_ASTC_8x8_Format": () => /* binding */ RGBA_ASTC_8x8_Format, +/* harmony export */ "RGBA_BPTC_Format": () => /* binding */ RGBA_BPTC_Format, +/* harmony export */ "RGBA_ETC2_EAC_Format": () => /* binding */ RGBA_ETC2_EAC_Format, +/* harmony export */ "RGBA_PVRTC_2BPPV1_Format": () => /* binding */ RGBA_PVRTC_2BPPV1_Format, +/* harmony export */ "RGBA_PVRTC_4BPPV1_Format": () => /* binding */ RGBA_PVRTC_4BPPV1_Format, +/* harmony export */ "RGBA_S3TC_DXT1_Format": () => /* binding */ RGBA_S3TC_DXT1_Format, +/* harmony export */ "RGBA_S3TC_DXT3_Format": () => /* binding */ RGBA_S3TC_DXT3_Format, +/* harmony export */ "RGBA_S3TC_DXT5_Format": () => /* binding */ RGBA_S3TC_DXT5_Format, +/* harmony export */ "RGBDEncoding": () => /* binding */ RGBDEncoding, +/* harmony export */ "RGBEEncoding": () => /* binding */ RGBEEncoding, +/* harmony export */ "RGBEFormat": () => /* binding */ RGBEFormat, +/* harmony export */ "RGBFormat": () => /* binding */ RGBFormat, +/* harmony export */ "RGBIntegerFormat": () => /* binding */ RGBIntegerFormat, +/* harmony export */ "RGBM16Encoding": () => /* binding */ RGBM16Encoding, +/* harmony export */ "RGBM7Encoding": () => /* binding */ RGBM7Encoding, +/* harmony export */ "RGB_ETC1_Format": () => /* binding */ RGB_ETC1_Format, +/* harmony export */ "RGB_ETC2_Format": () => /* binding */ RGB_ETC2_Format, +/* harmony export */ "RGB_PVRTC_2BPPV1_Format": () => /* binding */ RGB_PVRTC_2BPPV1_Format, +/* harmony export */ "RGB_PVRTC_4BPPV1_Format": () => /* binding */ RGB_PVRTC_4BPPV1_Format, +/* harmony export */ "RGB_S3TC_DXT1_Format": () => /* binding */ RGB_S3TC_DXT1_Format, +/* harmony export */ "RGFormat": () => /* binding */ RGFormat, +/* harmony export */ "RGIntegerFormat": () => /* binding */ RGIntegerFormat, +/* harmony export */ "RawShaderMaterial": () => /* binding */ RawShaderMaterial, +/* harmony export */ "Ray": () => /* binding */ Ray, +/* harmony export */ "Raycaster": () => /* binding */ Raycaster, +/* harmony export */ "RectAreaLight": () => /* binding */ RectAreaLight, +/* harmony export */ "RedFormat": () => /* binding */ RedFormat, +/* harmony export */ "RedIntegerFormat": () => /* binding */ RedIntegerFormat, +/* harmony export */ "ReinhardToneMapping": () => /* binding */ ReinhardToneMapping, +/* harmony export */ "RepeatWrapping": () => /* binding */ RepeatWrapping, +/* harmony export */ "ReplaceStencilOp": () => /* binding */ ReplaceStencilOp, +/* harmony export */ "ReverseSubtractEquation": () => /* binding */ ReverseSubtractEquation, +/* harmony export */ "RingBufferGeometry": () => /* binding */ RingBufferGeometry, +/* harmony export */ "RingGeometry": () => /* binding */ RingGeometry, +/* harmony export */ "SRGB8_ALPHA8_ASTC_10x10_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_10x10_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_10x5_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_10x5_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_10x6_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_10x6_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_10x8_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_10x8_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_12x10_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_12x10_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_12x12_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_12x12_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_4x4_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_4x4_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_5x4_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_5x4_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_5x5_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_5x5_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_6x5_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_6x5_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_6x6_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_6x6_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_8x5_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_8x5_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_8x6_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_8x6_Format, +/* harmony export */ "SRGB8_ALPHA8_ASTC_8x8_Format": () => /* binding */ SRGB8_ALPHA8_ASTC_8x8_Format, +/* harmony export */ "Scene": () => /* binding */ Scene, +/* harmony export */ "SceneUtils": () => /* binding */ SceneUtils, +/* harmony export */ "ShaderChunk": () => /* binding */ ShaderChunk, +/* harmony export */ "ShaderLib": () => /* binding */ ShaderLib, +/* harmony export */ "ShaderMaterial": () => /* binding */ ShaderMaterial, +/* harmony export */ "ShadowMaterial": () => /* binding */ ShadowMaterial, +/* harmony export */ "Shape": () => /* binding */ Shape, +/* harmony export */ "ShapeBufferGeometry": () => /* binding */ ShapeBufferGeometry, +/* harmony export */ "ShapeGeometry": () => /* binding */ ShapeGeometry, +/* harmony export */ "ShapePath": () => /* binding */ ShapePath, +/* harmony export */ "ShapeUtils": () => /* binding */ ShapeUtils, +/* harmony export */ "ShortType": () => /* binding */ ShortType, +/* harmony export */ "Skeleton": () => /* binding */ Skeleton, +/* harmony export */ "SkeletonHelper": () => /* binding */ SkeletonHelper, +/* harmony export */ "SkinnedMesh": () => /* binding */ SkinnedMesh, +/* harmony export */ "SmoothShading": () => /* binding */ SmoothShading, +/* harmony export */ "Sphere": () => /* binding */ Sphere, +/* harmony export */ "SphereBufferGeometry": () => /* binding */ SphereBufferGeometry, +/* harmony export */ "SphereGeometry": () => /* binding */ SphereGeometry, +/* harmony export */ "Spherical": () => /* binding */ Spherical, +/* harmony export */ "SphericalHarmonics3": () => /* binding */ SphericalHarmonics3, +/* harmony export */ "Spline": () => /* binding */ Spline, +/* harmony export */ "SplineCurve": () => /* binding */ SplineCurve, +/* harmony export */ "SplineCurve3": () => /* binding */ SplineCurve3, +/* harmony export */ "SpotLight": () => /* binding */ SpotLight, +/* harmony export */ "SpotLightHelper": () => /* binding */ SpotLightHelper, +/* harmony export */ "Sprite": () => /* binding */ Sprite, +/* harmony export */ "SpriteMaterial": () => /* binding */ SpriteMaterial, +/* harmony export */ "SrcAlphaFactor": () => /* binding */ SrcAlphaFactor, +/* harmony export */ "SrcAlphaSaturateFactor": () => /* binding */ SrcAlphaSaturateFactor, +/* harmony export */ "SrcColorFactor": () => /* binding */ SrcColorFactor, +/* harmony export */ "StaticCopyUsage": () => /* binding */ StaticCopyUsage, +/* harmony export */ "StaticDrawUsage": () => /* binding */ StaticDrawUsage, +/* harmony export */ "StaticReadUsage": () => /* binding */ StaticReadUsage, +/* harmony export */ "StereoCamera": () => /* binding */ StereoCamera, +/* harmony export */ "StreamCopyUsage": () => /* binding */ StreamCopyUsage, +/* harmony export */ "StreamDrawUsage": () => /* binding */ StreamDrawUsage, +/* harmony export */ "StreamReadUsage": () => /* binding */ StreamReadUsage, +/* harmony export */ "StringKeyframeTrack": () => /* binding */ StringKeyframeTrack, +/* harmony export */ "SubtractEquation": () => /* binding */ SubtractEquation, +/* harmony export */ "SubtractiveBlending": () => /* binding */ SubtractiveBlending, +/* harmony export */ "TOUCH": () => /* binding */ TOUCH, +/* harmony export */ "TangentSpaceNormalMap": () => /* binding */ TangentSpaceNormalMap, +/* harmony export */ "TetrahedronBufferGeometry": () => /* binding */ TetrahedronBufferGeometry, +/* harmony export */ "TetrahedronGeometry": () => /* binding */ TetrahedronGeometry, +/* harmony export */ "TextBufferGeometry": () => /* binding */ TextBufferGeometry, +/* harmony export */ "TextGeometry": () => /* binding */ TextGeometry, +/* harmony export */ "Texture": () => /* binding */ Texture, +/* harmony export */ "TextureLoader": () => /* binding */ TextureLoader, +/* harmony export */ "TorusBufferGeometry": () => /* binding */ TorusBufferGeometry, +/* harmony export */ "TorusGeometry": () => /* binding */ TorusGeometry, +/* harmony export */ "TorusKnotBufferGeometry": () => /* binding */ TorusKnotBufferGeometry, +/* harmony export */ "TorusKnotGeometry": () => /* binding */ TorusKnotGeometry, +/* harmony export */ "Triangle": () => /* binding */ Triangle, +/* harmony export */ "TriangleFanDrawMode": () => /* binding */ TriangleFanDrawMode, +/* harmony export */ "TriangleStripDrawMode": () => /* binding */ TriangleStripDrawMode, +/* harmony export */ "TrianglesDrawMode": () => /* binding */ TrianglesDrawMode, +/* harmony export */ "TubeBufferGeometry": () => /* binding */ TubeBufferGeometry, +/* harmony export */ "TubeGeometry": () => /* binding */ TubeGeometry, +/* harmony export */ "UVMapping": () => /* binding */ UVMapping, +/* harmony export */ "Uint16Attribute": () => /* binding */ Uint16Attribute, +/* harmony export */ "Uint16BufferAttribute": () => /* binding */ Uint16BufferAttribute, +/* harmony export */ "Uint32Attribute": () => /* binding */ Uint32Attribute, +/* harmony export */ "Uint32BufferAttribute": () => /* binding */ Uint32BufferAttribute, +/* harmony export */ "Uint8Attribute": () => /* binding */ Uint8Attribute, +/* harmony export */ "Uint8BufferAttribute": () => /* binding */ Uint8BufferAttribute, +/* harmony export */ "Uint8ClampedAttribute": () => /* binding */ Uint8ClampedAttribute, +/* harmony export */ "Uint8ClampedBufferAttribute": () => /* binding */ Uint8ClampedBufferAttribute, +/* harmony export */ "Uniform": () => /* binding */ Uniform, +/* harmony export */ "UniformsLib": () => /* binding */ UniformsLib, +/* harmony export */ "UniformsUtils": () => /* binding */ UniformsUtils, +/* harmony export */ "UnsignedByteType": () => /* binding */ UnsignedByteType, +/* harmony export */ "UnsignedInt248Type": () => /* binding */ UnsignedInt248Type, +/* harmony export */ "UnsignedIntType": () => /* binding */ UnsignedIntType, +/* harmony export */ "UnsignedShort4444Type": () => /* binding */ UnsignedShort4444Type, +/* harmony export */ "UnsignedShort5551Type": () => /* binding */ UnsignedShort5551Type, +/* harmony export */ "UnsignedShort565Type": () => /* binding */ UnsignedShort565Type, +/* harmony export */ "UnsignedShortType": () => /* binding */ UnsignedShortType, +/* harmony export */ "VSMShadowMap": () => /* binding */ VSMShadowMap, +/* harmony export */ "Vector2": () => /* binding */ Vector2, +/* harmony export */ "Vector3": () => /* binding */ Vector3, +/* harmony export */ "Vector4": () => /* binding */ Vector4, +/* harmony export */ "VectorKeyframeTrack": () => /* binding */ VectorKeyframeTrack, +/* harmony export */ "Vertex": () => /* binding */ Vertex, +/* harmony export */ "VertexColors": () => /* binding */ VertexColors, +/* harmony export */ "VideoTexture": () => /* binding */ VideoTexture, +/* harmony export */ "WebGL1Renderer": () => /* binding */ WebGL1Renderer, +/* harmony export */ "WebGLCubeRenderTarget": () => /* binding */ WebGLCubeRenderTarget, +/* harmony export */ "WebGLMultisampleRenderTarget": () => /* binding */ WebGLMultisampleRenderTarget, +/* harmony export */ "WebGLRenderTarget": () => /* binding */ WebGLRenderTarget, +/* harmony export */ "WebGLRenderTargetCube": () => /* binding */ WebGLRenderTargetCube, +/* harmony export */ "WebGLRenderer": () => /* binding */ WebGLRenderer, +/* harmony export */ "WebGLUtils": () => /* binding */ WebGLUtils, +/* harmony export */ "WireframeGeometry": () => /* binding */ WireframeGeometry, +/* harmony export */ "WireframeHelper": () => /* binding */ WireframeHelper, +/* harmony export */ "WrapAroundEnding": () => /* binding */ WrapAroundEnding, +/* harmony export */ "XHRLoader": () => /* binding */ XHRLoader, +/* harmony export */ "ZeroCurvatureEnding": () => /* binding */ ZeroCurvatureEnding, +/* harmony export */ "ZeroFactor": () => /* binding */ ZeroFactor, +/* harmony export */ "ZeroSlopeEnding": () => /* binding */ ZeroSlopeEnding, +/* harmony export */ "ZeroStencilOp": () => /* binding */ ZeroStencilOp, +/* harmony export */ "sRGBEncoding": () => /* binding */ sRGBEncoding +/* harmony export */ }); +// threejs.org/license +const REVISION = '124'; +const MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2, ROTATE: 0, DOLLY: 1, PAN: 2 }; +const TOUCH = { ROTATE: 0, PAN: 1, DOLLY_PAN: 2, DOLLY_ROTATE: 3 }; +const CullFaceNone = 0; +const CullFaceBack = 1; +const CullFaceFront = 2; +const CullFaceFrontBack = 3; +const BasicShadowMap = 0; +const PCFShadowMap = 1; +const PCFSoftShadowMap = 2; +const VSMShadowMap = 3; +const FrontSide = 0; +const BackSide = 1; +const DoubleSide = 2; +const FlatShading = 1; +const SmoothShading = 2; +const NoBlending = 0; +const NormalBlending = 1; +const AdditiveBlending = 2; +const SubtractiveBlending = 3; +const MultiplyBlending = 4; +const CustomBlending = 5; +const AddEquation = 100; +const SubtractEquation = 101; +const ReverseSubtractEquation = 102; +const MinEquation = 103; +const MaxEquation = 104; +const ZeroFactor = 200; +const OneFactor = 201; +const SrcColorFactor = 202; +const OneMinusSrcColorFactor = 203; +const SrcAlphaFactor = 204; +const OneMinusSrcAlphaFactor = 205; +const DstAlphaFactor = 206; +const OneMinusDstAlphaFactor = 207; +const DstColorFactor = 208; +const OneMinusDstColorFactor = 209; +const SrcAlphaSaturateFactor = 210; +const NeverDepth = 0; +const AlwaysDepth = 1; +const LessDepth = 2; +const LessEqualDepth = 3; +const EqualDepth = 4; +const GreaterEqualDepth = 5; +const GreaterDepth = 6; +const NotEqualDepth = 7; +const MultiplyOperation = 0; +const MixOperation = 1; +const AddOperation = 2; +const NoToneMapping = 0; +const LinearToneMapping = 1; +const ReinhardToneMapping = 2; +const CineonToneMapping = 3; +const ACESFilmicToneMapping = 4; +const CustomToneMapping = 5; + +const UVMapping = 300; +const CubeReflectionMapping = 301; +const CubeRefractionMapping = 302; +const EquirectangularReflectionMapping = 303; +const EquirectangularRefractionMapping = 304; +const CubeUVReflectionMapping = 306; +const CubeUVRefractionMapping = 307; +const RepeatWrapping = 1000; +const ClampToEdgeWrapping = 1001; +const MirroredRepeatWrapping = 1002; +const NearestFilter = 1003; +const NearestMipmapNearestFilter = 1004; +const NearestMipMapNearestFilter = 1004; +const NearestMipmapLinearFilter = 1005; +const NearestMipMapLinearFilter = 1005; +const LinearFilter = 1006; +const LinearMipmapNearestFilter = 1007; +const LinearMipMapNearestFilter = 1007; +const LinearMipmapLinearFilter = 1008; +const LinearMipMapLinearFilter = 1008; +const UnsignedByteType = 1009; +const ByteType = 1010; +const ShortType = 1011; +const UnsignedShortType = 1012; +const IntType = 1013; +const UnsignedIntType = 1014; +const FloatType = 1015; +const HalfFloatType = 1016; +const UnsignedShort4444Type = 1017; +const UnsignedShort5551Type = 1018; +const UnsignedShort565Type = 1019; +const UnsignedInt248Type = 1020; +const AlphaFormat = 1021; +const RGBFormat = 1022; +const RGBAFormat = 1023; +const LuminanceFormat = 1024; +const LuminanceAlphaFormat = 1025; +const RGBEFormat = RGBAFormat; +const DepthFormat = 1026; +const DepthStencilFormat = 1027; +const RedFormat = 1028; +const RedIntegerFormat = 1029; +const RGFormat = 1030; +const RGIntegerFormat = 1031; +const RGBIntegerFormat = 1032; +const RGBAIntegerFormat = 1033; + +const RGB_S3TC_DXT1_Format = 33776; +const RGBA_S3TC_DXT1_Format = 33777; +const RGBA_S3TC_DXT3_Format = 33778; +const RGBA_S3TC_DXT5_Format = 33779; +const RGB_PVRTC_4BPPV1_Format = 35840; +const RGB_PVRTC_2BPPV1_Format = 35841; +const RGBA_PVRTC_4BPPV1_Format = 35842; +const RGBA_PVRTC_2BPPV1_Format = 35843; +const RGB_ETC1_Format = 36196; +const RGB_ETC2_Format = 37492; +const RGBA_ETC2_EAC_Format = 37496; +const RGBA_ASTC_4x4_Format = 37808; +const RGBA_ASTC_5x4_Format = 37809; +const RGBA_ASTC_5x5_Format = 37810; +const RGBA_ASTC_6x5_Format = 37811; +const RGBA_ASTC_6x6_Format = 37812; +const RGBA_ASTC_8x5_Format = 37813; +const RGBA_ASTC_8x6_Format = 37814; +const RGBA_ASTC_8x8_Format = 37815; +const RGBA_ASTC_10x5_Format = 37816; +const RGBA_ASTC_10x6_Format = 37817; +const RGBA_ASTC_10x8_Format = 37818; +const RGBA_ASTC_10x10_Format = 37819; +const RGBA_ASTC_12x10_Format = 37820; +const RGBA_ASTC_12x12_Format = 37821; +const RGBA_BPTC_Format = 36492; +const SRGB8_ALPHA8_ASTC_4x4_Format = 37840; +const SRGB8_ALPHA8_ASTC_5x4_Format = 37841; +const SRGB8_ALPHA8_ASTC_5x5_Format = 37842; +const SRGB8_ALPHA8_ASTC_6x5_Format = 37843; +const SRGB8_ALPHA8_ASTC_6x6_Format = 37844; +const SRGB8_ALPHA8_ASTC_8x5_Format = 37845; +const SRGB8_ALPHA8_ASTC_8x6_Format = 37846; +const SRGB8_ALPHA8_ASTC_8x8_Format = 37847; +const SRGB8_ALPHA8_ASTC_10x5_Format = 37848; +const SRGB8_ALPHA8_ASTC_10x6_Format = 37849; +const SRGB8_ALPHA8_ASTC_10x8_Format = 37850; +const SRGB8_ALPHA8_ASTC_10x10_Format = 37851; +const SRGB8_ALPHA8_ASTC_12x10_Format = 37852; +const SRGB8_ALPHA8_ASTC_12x12_Format = 37853; +const LoopOnce = 2200; +const LoopRepeat = 2201; +const LoopPingPong = 2202; +const InterpolateDiscrete = 2300; +const InterpolateLinear = 2301; +const InterpolateSmooth = 2302; +const ZeroCurvatureEnding = 2400; +const ZeroSlopeEnding = 2401; +const WrapAroundEnding = 2402; +const NormalAnimationBlendMode = 2500; +const AdditiveAnimationBlendMode = 2501; +const TrianglesDrawMode = 0; +const TriangleStripDrawMode = 1; +const TriangleFanDrawMode = 2; +const LinearEncoding = 3000; +const sRGBEncoding = 3001; +const GammaEncoding = 3007; +const RGBEEncoding = 3002; +const LogLuvEncoding = 3003; +const RGBM7Encoding = 3004; +const RGBM16Encoding = 3005; +const RGBDEncoding = 3006; +const BasicDepthPacking = 3200; +const RGBADepthPacking = 3201; +const TangentSpaceNormalMap = 0; +const ObjectSpaceNormalMap = 1; + +const ZeroStencilOp = 0; +const KeepStencilOp = 7680; +const ReplaceStencilOp = 7681; +const IncrementStencilOp = 7682; +const DecrementStencilOp = 7683; +const IncrementWrapStencilOp = 34055; +const DecrementWrapStencilOp = 34056; +const InvertStencilOp = 5386; + +const NeverStencilFunc = 512; +const LessStencilFunc = 513; +const EqualStencilFunc = 514; +const LessEqualStencilFunc = 515; +const GreaterStencilFunc = 516; +const NotEqualStencilFunc = 517; +const GreaterEqualStencilFunc = 518; +const AlwaysStencilFunc = 519; + +const StaticDrawUsage = 35044; +const DynamicDrawUsage = 35048; +const StreamDrawUsage = 35040; +const StaticReadUsage = 35045; +const DynamicReadUsage = 35049; +const StreamReadUsage = 35041; +const StaticCopyUsage = 35046; +const DynamicCopyUsage = 35050; +const StreamCopyUsage = 35042; + +const GLSL1 = '100'; +const GLSL3 = '300 es'; + +/** + * https://github.com/mrdoob/eventdispatcher.js/ + */ + +function EventDispatcher() {} + +Object.assign( EventDispatcher.prototype, { + + addEventListener: function ( type, listener ) { + + if ( this._listeners === undefined ) this._listeners = {}; + + const listeners = this._listeners; + + if ( listeners[ type ] === undefined ) { + + listeners[ type ] = []; + + } + + if ( listeners[ type ].indexOf( listener ) === - 1 ) { + + listeners[ type ].push( listener ); + + } + + }, + + hasEventListener: function ( type, listener ) { + + if ( this._listeners === undefined ) return false; + + const listeners = this._listeners; + + return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1; + + }, + + removeEventListener: function ( type, listener ) { + + if ( this._listeners === undefined ) return; + + const listeners = this._listeners; + const listenerArray = listeners[ type ]; + + if ( listenerArray !== undefined ) { + + const index = listenerArray.indexOf( listener ); + + if ( index !== - 1 ) { + + listenerArray.splice( index, 1 ); + + } + + } + + }, + + dispatchEvent: function ( event ) { + + if ( this._listeners === undefined ) return; + + const listeners = this._listeners; + const listenerArray = listeners[ event.type ]; + + if ( listenerArray !== undefined ) { + + event.target = this; + + // Make a copy, in case listeners are removed while iterating. + const array = listenerArray.slice( 0 ); + + for ( let i = 0, l = array.length; i < l; i ++ ) { + + array[ i ].call( this, event ); + + } + + } + + } + +} ); + +const _lut = []; + +for ( let i = 0; i < 256; i ++ ) { + + _lut[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 ); + +} + +let _seed = 1234567; + +const MathUtils = { + + DEG2RAD: Math.PI / 180, + RAD2DEG: 180 / Math.PI, + + generateUUID: function () { + + // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136 + + const d0 = Math.random() * 0xffffffff | 0; + const d1 = Math.random() * 0xffffffff | 0; + const d2 = Math.random() * 0xffffffff | 0; + const d3 = Math.random() * 0xffffffff | 0; + const uuid = _lut[ d0 & 0xff ] + _lut[ d0 >> 8 & 0xff ] + _lut[ d0 >> 16 & 0xff ] + _lut[ d0 >> 24 & 0xff ] + '-' + + _lut[ d1 & 0xff ] + _lut[ d1 >> 8 & 0xff ] + '-' + _lut[ d1 >> 16 & 0x0f | 0x40 ] + _lut[ d1 >> 24 & 0xff ] + '-' + + _lut[ d2 & 0x3f | 0x80 ] + _lut[ d2 >> 8 & 0xff ] + '-' + _lut[ d2 >> 16 & 0xff ] + _lut[ d2 >> 24 & 0xff ] + + _lut[ d3 & 0xff ] + _lut[ d3 >> 8 & 0xff ] + _lut[ d3 >> 16 & 0xff ] + _lut[ d3 >> 24 & 0xff ]; + + // .toUpperCase() here flattens concatenated strings to save heap memory space. + return uuid.toUpperCase(); + + }, + + clamp: function ( value, min, max ) { + + return Math.max( min, Math.min( max, value ) ); + + }, + + // compute euclidian modulo of m % n + // https://en.wikipedia.org/wiki/Modulo_operation + + euclideanModulo: function ( n, m ) { + + return ( ( n % m ) + m ) % m; + + }, + + // Linear mapping from range to range + + mapLinear: function ( x, a1, a2, b1, b2 ) { + + return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 ); + + }, + + // https://en.wikipedia.org/wiki/Linear_interpolation + + lerp: function ( x, y, t ) { + + return ( 1 - t ) * x + t * y; + + }, + + // http://en.wikipedia.org/wiki/Smoothstep + + smoothstep: function ( x, min, max ) { + + if ( x <= min ) return 0; + if ( x >= max ) return 1; + + x = ( x - min ) / ( max - min ); + + return x * x * ( 3 - 2 * x ); + + }, + + smootherstep: function ( x, min, max ) { + + if ( x <= min ) return 0; + if ( x >= max ) return 1; + + x = ( x - min ) / ( max - min ); + + return x * x * x * ( x * ( x * 6 - 15 ) + 10 ); + + }, + + // Random integer from interval + + randInt: function ( low, high ) { + + return low + Math.floor( Math.random() * ( high - low + 1 ) ); + + }, + + // Random float from interval + + randFloat: function ( low, high ) { + + return low + Math.random() * ( high - low ); + + }, + + // Random float from <-range/2, range/2> interval + + randFloatSpread: function ( range ) { + + return range * ( 0.5 - Math.random() ); + + }, + + // Deterministic pseudo-random float in the interval [ 0, 1 ] + + seededRandom: function ( s ) { + + if ( s !== undefined ) _seed = s % 2147483647; + + // Park-Miller algorithm + + _seed = _seed * 16807 % 2147483647; + + return ( _seed - 1 ) / 2147483646; + + }, + + degToRad: function ( degrees ) { + + return degrees * MathUtils.DEG2RAD; + + }, + + radToDeg: function ( radians ) { + + return radians * MathUtils.RAD2DEG; + + }, + + isPowerOfTwo: function ( value ) { + + return ( value & ( value - 1 ) ) === 0 && value !== 0; + + }, + + ceilPowerOfTwo: function ( value ) { + + return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) ); + + }, + + floorPowerOfTwo: function ( value ) { + + return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) ); + + }, + + setQuaternionFromProperEuler: function ( q, a, b, c, order ) { + + // Intrinsic Proper Euler Angles - see https://en.wikipedia.org/wiki/Euler_angles + + // rotations are applied to the axes in the order specified by 'order' + // rotation by angle 'a' is applied first, then by angle 'b', then by angle 'c' + // angles are in radians + + const cos = Math.cos; + const sin = Math.sin; + + const c2 = cos( b / 2 ); + const s2 = sin( b / 2 ); + + const c13 = cos( ( a + c ) / 2 ); + const s13 = sin( ( a + c ) / 2 ); + + const c1_3 = cos( ( a - c ) / 2 ); + const s1_3 = sin( ( a - c ) / 2 ); + + const c3_1 = cos( ( c - a ) / 2 ); + const s3_1 = sin( ( c - a ) / 2 ); + + switch ( order ) { + + case 'XYX': + q.set( c2 * s13, s2 * c1_3, s2 * s1_3, c2 * c13 ); + break; + + case 'YZY': + q.set( s2 * s1_3, c2 * s13, s2 * c1_3, c2 * c13 ); + break; + + case 'ZXZ': + q.set( s2 * c1_3, s2 * s1_3, c2 * s13, c2 * c13 ); + break; + + case 'XZX': + q.set( c2 * s13, s2 * s3_1, s2 * c3_1, c2 * c13 ); + break; + + case 'YXY': + q.set( s2 * c3_1, c2 * s13, s2 * s3_1, c2 * c13 ); + break; + + case 'ZYZ': + q.set( s2 * s3_1, s2 * c3_1, c2 * s13, c2 * c13 ); + break; + + default: + console.warn( 'THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: ' + order ); + + } + + } + +}; + +class Vector2 { + + constructor( x = 0, y = 0 ) { + + Object.defineProperty( this, 'isVector2', { value: true } ); + + this.x = x; + this.y = y; + + } + + get width() { + + return this.x; + + } + + set width( value ) { + + this.x = value; + + } + + get height() { + + return this.y; + + } + + set height( value ) { + + this.y = value; + + } + + set( x, y ) { + + this.x = x; + this.y = y; + + return this; + + } + + setScalar( scalar ) { + + this.x = scalar; + this.y = scalar; + + return this; + + } + + setX( x ) { + + this.x = x; + + return this; + + } + + setY( y ) { + + this.y = y; + + return this; + + } + + setComponent( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + } + + getComponent( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + default: throw new Error( 'index is out of range: ' + index ); + + } + + } + + clone() { + + return new this.constructor( this.x, this.y ); + + } + + copy( v ) { + + this.x = v.x; + this.y = v.y; + + return this; + + } + + add( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + + return this; + + } + + addScalar( s ) { + + this.x += s; + this.y += s; + + return this; + + } + + addVectors( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + + return this; + + } + + addScaledVector( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + + return this; + + } + + sub( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + + return this; + + } + + subScalar( s ) { + + this.x -= s; + this.y -= s; + + return this; + + } + + subVectors( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + + return this; + + } + + multiply( v ) { + + this.x *= v.x; + this.y *= v.y; + + return this; + + } + + multiplyScalar( scalar ) { + + this.x *= scalar; + this.y *= scalar; + + return this; + + } + + divide( v ) { + + this.x /= v.x; + this.y /= v.y; + + return this; + + } + + divideScalar( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + } + + applyMatrix3( m ) { + + const x = this.x, y = this.y; + const e = m.elements; + + this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ]; + this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ]; + + return this; + + } + + min( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + + return this; + + } + + max( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + + return this; + + } + + clamp( min, max ) { + + // assumes min < max, componentwise + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + + return this; + + } + + clampScalar( minVal, maxVal ) { + + this.x = Math.max( minVal, Math.min( maxVal, this.x ) ); + this.y = Math.max( minVal, Math.min( maxVal, this.y ) ); + + return this; + + } + + clampLength( min, max ) { + + const length = this.length(); + + return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) ); + + } + + floor() { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + + return this; + + } + + ceil() { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + + return this; + + } + + round() { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + + return this; + + } + + roundToZero() { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + + return this; + + } + + negate() { + + this.x = - this.x; + this.y = - this.y; + + return this; + + } + + dot( v ) { + + return this.x * v.x + this.y * v.y; + + } + + cross( v ) { + + return this.x * v.y - this.y * v.x; + + } + + lengthSq() { + + return this.x * this.x + this.y * this.y; + + } + + length() { + + return Math.sqrt( this.x * this.x + this.y * this.y ); + + } + + manhattanLength() { + + return Math.abs( this.x ) + Math.abs( this.y ); + + } + + normalize() { + + return this.divideScalar( this.length() || 1 ); + + } + + angle() { + + // computes the angle in radians with respect to the positive x-axis + + const angle = Math.atan2( - this.y, - this.x ) + Math.PI; + + return angle; + + } + + distanceTo( v ) { + + return Math.sqrt( this.distanceToSquared( v ) ); + + } + + distanceToSquared( v ) { + + const dx = this.x - v.x, dy = this.y - v.y; + return dx * dx + dy * dy; + + } + + manhattanDistanceTo( v ) { + + return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ); + + } + + setLength( length ) { + + return this.normalize().multiplyScalar( length ); + + } + + lerp( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + + return this; + + } + + lerpVectors( v1, v2, alpha ) { + + this.x = v1.x + ( v2.x - v1.x ) * alpha; + this.y = v1.y + ( v2.y - v1.y ) * alpha; + + return this; + + } + + equals( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) ); + + } + + fromArray( array, offset = 0 ) { + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + + return array; + + } + + fromBufferAttribute( attribute, index, offset ) { + + if ( offset !== undefined ) { + + console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' ); + + } + + this.x = attribute.getX( index ); + this.y = attribute.getY( index ); + + return this; + + } + + rotateAround( center, angle ) { + + const c = Math.cos( angle ), s = Math.sin( angle ); + + const x = this.x - center.x; + const y = this.y - center.y; + + this.x = x * c - y * s + center.x; + this.y = x * s + y * c + center.y; + + return this; + + } + + random() { + + this.x = Math.random(); + this.y = Math.random(); + + return this; + + } + +} + +class Matrix3 { + + constructor() { + + Object.defineProperty( this, 'isMatrix3', { value: true } ); + + this.elements = [ + + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 + + ]; + + if ( arguments.length > 0 ) { + + console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' ); + + } + + } + + set( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) { + + const te = this.elements; + + te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31; + te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32; + te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33; + + return this; + + } + + identity() { + + this.set( + + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 + + ); + + return this; + + } + + clone() { + + return new this.constructor().fromArray( this.elements ); + + } + + copy( m ) { + + const te = this.elements; + const me = m.elements; + + te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; + te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; + te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ]; + + return this; + + } + + extractBasis( xAxis, yAxis, zAxis ) { + + xAxis.setFromMatrix3Column( this, 0 ); + yAxis.setFromMatrix3Column( this, 1 ); + zAxis.setFromMatrix3Column( this, 2 ); + + return this; + + } + + setFromMatrix4( m ) { + + const me = m.elements; + + this.set( + + me[ 0 ], me[ 4 ], me[ 8 ], + me[ 1 ], me[ 5 ], me[ 9 ], + me[ 2 ], me[ 6 ], me[ 10 ] + + ); + + return this; + + } + + multiply( m ) { + + return this.multiplyMatrices( this, m ); + + } + + premultiply( m ) { + + return this.multiplyMatrices( m, this ); + + } + + multiplyMatrices( a, b ) { + + const ae = a.elements; + const be = b.elements; + const te = this.elements; + + const a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ]; + const a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ]; + const a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ]; + + const b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ]; + const b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ]; + const b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ]; + + te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31; + te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32; + te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33; + + te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31; + te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32; + te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33; + + te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31; + te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32; + te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33; + + return this; + + } + + multiplyScalar( s ) { + + const te = this.elements; + + te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s; + te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s; + te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s; + + return this; + + } + + determinant() { + + const te = this.elements; + + const a = te[ 0 ], b = te[ 1 ], c = te[ 2 ], + d = te[ 3 ], e = te[ 4 ], f = te[ 5 ], + g = te[ 6 ], h = te[ 7 ], i = te[ 8 ]; + + return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g; + + } + + invert() { + + const te = this.elements, + + n11 = te[ 0 ], n21 = te[ 1 ], n31 = te[ 2 ], + n12 = te[ 3 ], n22 = te[ 4 ], n32 = te[ 5 ], + n13 = te[ 6 ], n23 = te[ 7 ], n33 = te[ 8 ], + + t11 = n33 * n22 - n32 * n23, + t12 = n32 * n13 - n33 * n12, + t13 = n23 * n12 - n22 * n13, + + det = n11 * t11 + n21 * t12 + n31 * t13; + + if ( det === 0 ) return this.set( 0, 0, 0, 0, 0, 0, 0, 0, 0 ); + + const detInv = 1 / det; + + te[ 0 ] = t11 * detInv; + te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv; + te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv; + + te[ 3 ] = t12 * detInv; + te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv; + te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv; + + te[ 6 ] = t13 * detInv; + te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv; + te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv; + + return this; + + } + + transpose() { + + let tmp; + const m = this.elements; + + tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp; + tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp; + tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp; + + return this; + + } + + getNormalMatrix( matrix4 ) { + + return this.setFromMatrix4( matrix4 ).copy( this ).invert().transpose(); + + } + + transposeIntoArray( r ) { + + const m = this.elements; + + r[ 0 ] = m[ 0 ]; + r[ 1 ] = m[ 3 ]; + r[ 2 ] = m[ 6 ]; + r[ 3 ] = m[ 1 ]; + r[ 4 ] = m[ 4 ]; + r[ 5 ] = m[ 7 ]; + r[ 6 ] = m[ 2 ]; + r[ 7 ] = m[ 5 ]; + r[ 8 ] = m[ 8 ]; + + return this; + + } + + setUvTransform( tx, ty, sx, sy, rotation, cx, cy ) { + + const c = Math.cos( rotation ); + const s = Math.sin( rotation ); + + this.set( + sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx, + - sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty, + 0, 0, 1 + ); + + return this; + + } + + scale( sx, sy ) { + + const te = this.elements; + + te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx; + te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy; + + return this; + + } + + rotate( theta ) { + + const c = Math.cos( theta ); + const s = Math.sin( theta ); + + const te = this.elements; + + const a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ]; + const a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ]; + + te[ 0 ] = c * a11 + s * a21; + te[ 3 ] = c * a12 + s * a22; + te[ 6 ] = c * a13 + s * a23; + + te[ 1 ] = - s * a11 + c * a21; + te[ 4 ] = - s * a12 + c * a22; + te[ 7 ] = - s * a13 + c * a23; + + return this; + + } + + translate( tx, ty ) { + + const te = this.elements; + + te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ]; + te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ]; + + return this; + + } + + equals( matrix ) { + + const te = this.elements; + const me = matrix.elements; + + for ( let i = 0; i < 9; i ++ ) { + + if ( te[ i ] !== me[ i ] ) return false; + + } + + return true; + + } + + fromArray( array, offset = 0 ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.elements[ i ] = array[ i + offset ]; + + } + + return this; + + } + + toArray( array = [], offset = 0 ) { + + const te = this.elements; + + array[ offset ] = te[ 0 ]; + array[ offset + 1 ] = te[ 1 ]; + array[ offset + 2 ] = te[ 2 ]; + + array[ offset + 3 ] = te[ 3 ]; + array[ offset + 4 ] = te[ 4 ]; + array[ offset + 5 ] = te[ 5 ]; + + array[ offset + 6 ] = te[ 6 ]; + array[ offset + 7 ] = te[ 7 ]; + array[ offset + 8 ] = te[ 8 ]; + + return array; + + } + +} + +let _canvas; + +const ImageUtils = { + + getDataURL: function ( image ) { + + if ( /^data:/i.test( image.src ) ) { + + return image.src; + + } + + if ( typeof HTMLCanvasElement == 'undefined' ) { + + return image.src; + + } + + let canvas; + + if ( image instanceof HTMLCanvasElement ) { + + canvas = image; + + } else { + + if ( _canvas === undefined ) _canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); + + _canvas.width = image.width; + _canvas.height = image.height; + + const context = _canvas.getContext( '2d' ); + + if ( image instanceof ImageData ) { + + context.putImageData( image, 0, 0 ); + + } else { + + context.drawImage( image, 0, 0, image.width, image.height ); + + } + + canvas = _canvas; + + } + + if ( canvas.width > 2048 || canvas.height > 2048 ) { + + return canvas.toDataURL( 'image/jpeg', 0.6 ); + + } else { + + return canvas.toDataURL( 'image/png' ); + + } + + } + +}; + +let textureId = 0; + +function Texture( image = Texture.DEFAULT_IMAGE, mapping = Texture.DEFAULT_MAPPING, wrapS = ClampToEdgeWrapping, wrapT = ClampToEdgeWrapping, magFilter = LinearFilter, minFilter = LinearMipmapLinearFilter, format = RGBAFormat, type = UnsignedByteType, anisotropy = 1, encoding = LinearEncoding ) { + + Object.defineProperty( this, 'id', { value: textureId ++ } ); + + this.uuid = MathUtils.generateUUID(); + + this.name = ''; + + this.image = image; + this.mipmaps = []; + + this.mapping = mapping; + + this.wrapS = wrapS; + this.wrapT = wrapT; + + this.magFilter = magFilter; + this.minFilter = minFilter; + + this.anisotropy = anisotropy; + + this.format = format; + this.internalFormat = null; + this.type = type; + + this.offset = new Vector2( 0, 0 ); + this.repeat = new Vector2( 1, 1 ); + this.center = new Vector2( 0, 0 ); + this.rotation = 0; + + this.matrixAutoUpdate = true; + this.matrix = new Matrix3(); + + this.generateMipmaps = true; + this.premultiplyAlpha = false; + this.flipY = true; + this.unpackAlignment = 4; // valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml) + + // Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap. + // + // Also changing the encoding after already used by a Material will not automatically make the Material + // update. You need to explicitly call Material.needsUpdate to trigger it to recompile. + this.encoding = encoding; + + this.version = 0; + this.onUpdate = null; + +} + +Texture.DEFAULT_IMAGE = undefined; +Texture.DEFAULT_MAPPING = UVMapping; + +Texture.prototype = Object.assign( Object.create( EventDispatcher.prototype ), { + + constructor: Texture, + + isTexture: true, + + updateMatrix: function () { + + this.matrix.setUvTransform( this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y ); + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( source ) { + + this.name = source.name; + + this.image = source.image; + this.mipmaps = source.mipmaps.slice( 0 ); + + this.mapping = source.mapping; + + this.wrapS = source.wrapS; + this.wrapT = source.wrapT; + + this.magFilter = source.magFilter; + this.minFilter = source.minFilter; + + this.anisotropy = source.anisotropy; + + this.format = source.format; + this.internalFormat = source.internalFormat; + this.type = source.type; + + this.offset.copy( source.offset ); + this.repeat.copy( source.repeat ); + this.center.copy( source.center ); + this.rotation = source.rotation; + + this.matrixAutoUpdate = source.matrixAutoUpdate; + this.matrix.copy( source.matrix ); + + this.generateMipmaps = source.generateMipmaps; + this.premultiplyAlpha = source.premultiplyAlpha; + this.flipY = source.flipY; + this.unpackAlignment = source.unpackAlignment; + this.encoding = source.encoding; + + return this; + + }, + + toJSON: function ( meta ) { + + const isRootObject = ( meta === undefined || typeof meta === 'string' ); + + if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) { + + return meta.textures[ this.uuid ]; + + } + + const output = { + + metadata: { + version: 4.5, + type: 'Texture', + generator: 'Texture.toJSON' + }, + + uuid: this.uuid, + name: this.name, + + mapping: this.mapping, + + repeat: [ this.repeat.x, this.repeat.y ], + offset: [ this.offset.x, this.offset.y ], + center: [ this.center.x, this.center.y ], + rotation: this.rotation, + + wrap: [ this.wrapS, this.wrapT ], + + format: this.format, + type: this.type, + encoding: this.encoding, + + minFilter: this.minFilter, + magFilter: this.magFilter, + anisotropy: this.anisotropy, + + flipY: this.flipY, + + premultiplyAlpha: this.premultiplyAlpha, + unpackAlignment: this.unpackAlignment + + }; + + if ( this.image !== undefined ) { + + // TODO: Move to THREE.Image + + const image = this.image; + + if ( image.uuid === undefined ) { + + image.uuid = MathUtils.generateUUID(); // UGH + + } + + if ( ! isRootObject && meta.images[ image.uuid ] === undefined ) { + + let url; + + if ( Array.isArray( image ) ) { + + // process array of images e.g. CubeTexture + + url = []; + + for ( let i = 0, l = image.length; i < l; i ++ ) { + + // check cube texture with data textures + + if ( image[ i ].isDataTexture ) { + + url.push( serializeImage( image[ i ].image ) ); + + } else { + + url.push( serializeImage( image[ i ] ) ); + + } + + } + + } else { + + // process single image + + url = serializeImage( image ); + + } + + meta.images[ image.uuid ] = { + uuid: image.uuid, + url: url + }; + + } + + output.image = image.uuid; + + } + + if ( ! isRootObject ) { + + meta.textures[ this.uuid ] = output; + + } + + return output; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + }, + + transformUv: function ( uv ) { + + if ( this.mapping !== UVMapping ) return uv; + + uv.applyMatrix3( this.matrix ); + + if ( uv.x < 0 || uv.x > 1 ) { + + switch ( this.wrapS ) { + + case RepeatWrapping: + + uv.x = uv.x - Math.floor( uv.x ); + break; + + case ClampToEdgeWrapping: + + uv.x = uv.x < 0 ? 0 : 1; + break; + + case MirroredRepeatWrapping: + + if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) { + + uv.x = Math.ceil( uv.x ) - uv.x; + + } else { + + uv.x = uv.x - Math.floor( uv.x ); + + } + + break; + + } + + } + + if ( uv.y < 0 || uv.y > 1 ) { + + switch ( this.wrapT ) { + + case RepeatWrapping: + + uv.y = uv.y - Math.floor( uv.y ); + break; + + case ClampToEdgeWrapping: + + uv.y = uv.y < 0 ? 0 : 1; + break; + + case MirroredRepeatWrapping: + + if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) { + + uv.y = Math.ceil( uv.y ) - uv.y; + + } else { + + uv.y = uv.y - Math.floor( uv.y ); + + } + + break; + + } + + } + + if ( this.flipY ) { + + uv.y = 1 - uv.y; + + } + + return uv; + + } + +} ); + +Object.defineProperty( Texture.prototype, 'needsUpdate', { + + set: function ( value ) { + + if ( value === true ) this.version ++; + + } + +} ); + +function serializeImage( image ) { + + if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) || + ( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) || + ( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) { + + // default images + + return ImageUtils.getDataURL( image ); + + } else { + + if ( image.data ) { + + // images of DataTexture + + return { + data: Array.prototype.slice.call( image.data ), + width: image.width, + height: image.height, + type: image.data.constructor.name + }; + + } else { + + console.warn( 'THREE.Texture: Unable to serialize Texture.' ); + return {}; + + } + + } + +} + +class Vector4 { + + constructor( x = 0, y = 0, z = 0, w = 1 ) { + + Object.defineProperty( this, 'isVector4', { value: true } ); + + this.x = x; + this.y = y; + this.z = z; + this.w = w; + + } + + get width() { + + return this.z; + + } + + set width( value ) { + + this.z = value; + + } + + get height() { + + return this.w; + + } + + set height( value ) { + + this.w = value; + + } + + set( x, y, z, w ) { + + this.x = x; + this.y = y; + this.z = z; + this.w = w; + + return this; + + } + + setScalar( scalar ) { + + this.x = scalar; + this.y = scalar; + this.z = scalar; + this.w = scalar; + + return this; + + } + + setX( x ) { + + this.x = x; + + return this; + + } + + setY( y ) { + + this.y = y; + + return this; + + } + + setZ( z ) { + + this.z = z; + + return this; + + } + + setW( w ) { + + this.w = w; + + return this; + + } + + setComponent( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + case 2: this.z = value; break; + case 3: this.w = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + } + + getComponent( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + case 2: return this.z; + case 3: return this.w; + default: throw new Error( 'index is out of range: ' + index ); + + } + + } + + clone() { + + return new this.constructor( this.x, this.y, this.z, this.w ); + + } + + copy( v ) { + + this.x = v.x; + this.y = v.y; + this.z = v.z; + this.w = ( v.w !== undefined ) ? v.w : 1; + + return this; + + } + + add( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + this.z += v.z; + this.w += v.w; + + return this; + + } + + addScalar( s ) { + + this.x += s; + this.y += s; + this.z += s; + this.w += s; + + return this; + + } + + addVectors( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + this.z = a.z + b.z; + this.w = a.w + b.w; + + return this; + + } + + addScaledVector( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + this.z += v.z * s; + this.w += v.w * s; + + return this; + + } + + sub( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + this.z -= v.z; + this.w -= v.w; + + return this; + + } + + subScalar( s ) { + + this.x -= s; + this.y -= s; + this.z -= s; + this.w -= s; + + return this; + + } + + subVectors( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + this.z = a.z - b.z; + this.w = a.w - b.w; + + return this; + + } + + multiplyScalar( scalar ) { + + this.x *= scalar; + this.y *= scalar; + this.z *= scalar; + this.w *= scalar; + + return this; + + } + + applyMatrix4( m ) { + + const x = this.x, y = this.y, z = this.z, w = this.w; + const e = m.elements; + + this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w; + this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w; + this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w; + this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w; + + return this; + + } + + divideScalar( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + } + + setAxisAngleFromQuaternion( q ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm + + // q is assumed to be normalized + + this.w = 2 * Math.acos( q.w ); + + const s = Math.sqrt( 1 - q.w * q.w ); + + if ( s < 0.0001 ) { + + this.x = 1; + this.y = 0; + this.z = 0; + + } else { + + this.x = q.x / s; + this.y = q.y / s; + this.z = q.z / s; + + } + + return this; + + } + + setAxisAngleFromRotationMatrix( m ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + let angle, x, y, z; // variables for result + const epsilon = 0.01, // margin to allow for rounding errors + epsilon2 = 0.1, // margin to distinguish between 0 and 180 degrees + + te = m.elements, + + m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ], + m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ], + m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ]; + + if ( ( Math.abs( m12 - m21 ) < epsilon ) && + ( Math.abs( m13 - m31 ) < epsilon ) && + ( Math.abs( m23 - m32 ) < epsilon ) ) { + + // singularity found + // first check for identity matrix which must have +1 for all terms + // in leading diagonal and zero in other terms + + if ( ( Math.abs( m12 + m21 ) < epsilon2 ) && + ( Math.abs( m13 + m31 ) < epsilon2 ) && + ( Math.abs( m23 + m32 ) < epsilon2 ) && + ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) { + + // this singularity is identity matrix so angle = 0 + + this.set( 1, 0, 0, 0 ); + + return this; // zero angle, arbitrary axis + + } + + // otherwise this singularity is angle = 180 + + angle = Math.PI; + + const xx = ( m11 + 1 ) / 2; + const yy = ( m22 + 1 ) / 2; + const zz = ( m33 + 1 ) / 2; + const xy = ( m12 + m21 ) / 4; + const xz = ( m13 + m31 ) / 4; + const yz = ( m23 + m32 ) / 4; + + if ( ( xx > yy ) && ( xx > zz ) ) { + + // m11 is the largest diagonal term + + if ( xx < epsilon ) { + + x = 0; + y = 0.707106781; + z = 0.707106781; + + } else { + + x = Math.sqrt( xx ); + y = xy / x; + z = xz / x; + + } + + } else if ( yy > zz ) { + + // m22 is the largest diagonal term + + if ( yy < epsilon ) { + + x = 0.707106781; + y = 0; + z = 0.707106781; + + } else { + + y = Math.sqrt( yy ); + x = xy / y; + z = yz / y; + + } + + } else { + + // m33 is the largest diagonal term so base result on this + + if ( zz < epsilon ) { + + x = 0.707106781; + y = 0.707106781; + z = 0; + + } else { + + z = Math.sqrt( zz ); + x = xz / z; + y = yz / z; + + } + + } + + this.set( x, y, z, angle ); + + return this; // return 180 deg rotation + + } + + // as we have reached here there are no singularities so we can handle normally + + let s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) + + ( m13 - m31 ) * ( m13 - m31 ) + + ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize + + if ( Math.abs( s ) < 0.001 ) s = 1; + + // prevent divide by zero, should not happen if matrix is orthogonal and should be + // caught by singularity test above, but I've left it in just in case + + this.x = ( m32 - m23 ) / s; + this.y = ( m13 - m31 ) / s; + this.z = ( m21 - m12 ) / s; + this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 ); + + return this; + + } + + min( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + this.z = Math.min( this.z, v.z ); + this.w = Math.min( this.w, v.w ); + + return this; + + } + + max( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + this.z = Math.max( this.z, v.z ); + this.w = Math.max( this.w, v.w ); + + return this; + + } + + clamp( min, max ) { + + // assumes min < max, componentwise + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + this.z = Math.max( min.z, Math.min( max.z, this.z ) ); + this.w = Math.max( min.w, Math.min( max.w, this.w ) ); + + return this; + + } + + clampScalar( minVal, maxVal ) { + + this.x = Math.max( minVal, Math.min( maxVal, this.x ) ); + this.y = Math.max( minVal, Math.min( maxVal, this.y ) ); + this.z = Math.max( minVal, Math.min( maxVal, this.z ) ); + this.w = Math.max( minVal, Math.min( maxVal, this.w ) ); + + return this; + + } + + clampLength( min, max ) { + + const length = this.length(); + + return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) ); + + } + + floor() { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + this.z = Math.floor( this.z ); + this.w = Math.floor( this.w ); + + return this; + + } + + ceil() { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + this.z = Math.ceil( this.z ); + this.w = Math.ceil( this.w ); + + return this; + + } + + round() { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + this.z = Math.round( this.z ); + this.w = Math.round( this.w ); + + return this; + + } + + roundToZero() { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z ); + this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w ); + + return this; + + } + + negate() { + + this.x = - this.x; + this.y = - this.y; + this.z = - this.z; + this.w = - this.w; + + return this; + + } + + dot( v ) { + + return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w; + + } + + lengthSq() { + + return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w; + + } + + length() { + + return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w ); + + } + + manhattanLength() { + + return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w ); + + } + + normalize() { + + return this.divideScalar( this.length() || 1 ); + + } + + setLength( length ) { + + return this.normalize().multiplyScalar( length ); + + } + + lerp( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + this.z += ( v.z - this.z ) * alpha; + this.w += ( v.w - this.w ) * alpha; + + return this; + + } + + lerpVectors( v1, v2, alpha ) { + + this.x = v1.x + ( v2.x - v1.x ) * alpha; + this.y = v1.y + ( v2.y - v1.y ) * alpha; + this.z = v1.z + ( v2.z - v1.z ) * alpha; + this.w = v1.w + ( v2.w - v1.w ) * alpha; + + return this; + + } + + equals( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) ); + + } + + fromArray( array, offset = 0 ) { + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + this.z = array[ offset + 2 ]; + this.w = array[ offset + 3 ]; + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + array[ offset + 2 ] = this.z; + array[ offset + 3 ] = this.w; + + return array; + + } + + fromBufferAttribute( attribute, index, offset ) { + + if ( offset !== undefined ) { + + console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' ); + + } + + this.x = attribute.getX( index ); + this.y = attribute.getY( index ); + this.z = attribute.getZ( index ); + this.w = attribute.getW( index ); + + return this; + + } + + random() { + + this.x = Math.random(); + this.y = Math.random(); + this.z = Math.random(); + this.w = Math.random(); + + return this; + + } + +} + +/* + In options, we can specify: + * Texture parameters for an auto-generated target texture + * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers +*/ +function WebGLRenderTarget( width, height, options ) { + + this.width = width; + this.height = height; + + this.scissor = new Vector4( 0, 0, width, height ); + this.scissorTest = false; + + this.viewport = new Vector4( 0, 0, width, height ); + + options = options || {}; + + this.texture = new Texture( undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding ); + + this.texture.image = {}; + this.texture.image.width = width; + this.texture.image.height = height; + + this.texture.generateMipmaps = options.generateMipmaps !== undefined ? options.generateMipmaps : false; + this.texture.minFilter = options.minFilter !== undefined ? options.minFilter : LinearFilter; + + this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true; + this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : false; + this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null; + +} + +WebGLRenderTarget.prototype = Object.assign( Object.create( EventDispatcher.prototype ), { + + constructor: WebGLRenderTarget, + + isWebGLRenderTarget: true, + + setSize: function ( width, height ) { + + if ( this.width !== width || this.height !== height ) { + + this.width = width; + this.height = height; + + this.texture.image.width = width; + this.texture.image.height = height; + + this.dispose(); + + } + + this.viewport.set( 0, 0, width, height ); + this.scissor.set( 0, 0, width, height ); + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( source ) { + + this.width = source.width; + this.height = source.height; + + this.viewport.copy( source.viewport ); + + this.texture = source.texture.clone(); + + this.depthBuffer = source.depthBuffer; + this.stencilBuffer = source.stencilBuffer; + this.depthTexture = source.depthTexture; + + return this; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + +} ); + +function WebGLMultisampleRenderTarget( width, height, options ) { + + WebGLRenderTarget.call( this, width, height, options ); + + this.samples = 4; + +} + +WebGLMultisampleRenderTarget.prototype = Object.assign( Object.create( WebGLRenderTarget.prototype ), { + + constructor: WebGLMultisampleRenderTarget, + + isWebGLMultisampleRenderTarget: true, + + copy: function ( source ) { + + WebGLRenderTarget.prototype.copy.call( this, source ); + + this.samples = source.samples; + + return this; + + } + +} ); + +class Quaternion { + + constructor( x = 0, y = 0, z = 0, w = 1 ) { + + Object.defineProperty( this, 'isQuaternion', { value: true } ); + + this._x = x; + this._y = y; + this._z = z; + this._w = w; + + } + + static slerp( qa, qb, qm, t ) { + + return qm.copy( qa ).slerp( qb, t ); + + } + + static slerpFlat( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) { + + // fuzz-free, array-based Quaternion SLERP operation + + let x0 = src0[ srcOffset0 + 0 ], + y0 = src0[ srcOffset0 + 1 ], + z0 = src0[ srcOffset0 + 2 ], + w0 = src0[ srcOffset0 + 3 ]; + + const x1 = src1[ srcOffset1 + 0 ], + y1 = src1[ srcOffset1 + 1 ], + z1 = src1[ srcOffset1 + 2 ], + w1 = src1[ srcOffset1 + 3 ]; + + if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) { + + let s = 1 - t; + const cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1, + dir = ( cos >= 0 ? 1 : - 1 ), + sqrSin = 1 - cos * cos; + + // Skip the Slerp for tiny steps to avoid numeric problems: + if ( sqrSin > Number.EPSILON ) { + + const sin = Math.sqrt( sqrSin ), + len = Math.atan2( sin, cos * dir ); + + s = Math.sin( s * len ) / sin; + t = Math.sin( t * len ) / sin; + + } + + const tDir = t * dir; + + x0 = x0 * s + x1 * tDir; + y0 = y0 * s + y1 * tDir; + z0 = z0 * s + z1 * tDir; + w0 = w0 * s + w1 * tDir; + + // Normalize in case we just did a lerp: + if ( s === 1 - t ) { + + const f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 ); + + x0 *= f; + y0 *= f; + z0 *= f; + w0 *= f; + + } + + } + + dst[ dstOffset ] = x0; + dst[ dstOffset + 1 ] = y0; + dst[ dstOffset + 2 ] = z0; + dst[ dstOffset + 3 ] = w0; + + } + + static multiplyQuaternionsFlat( dst, dstOffset, src0, srcOffset0, src1, srcOffset1 ) { + + const x0 = src0[ srcOffset0 ]; + const y0 = src0[ srcOffset0 + 1 ]; + const z0 = src0[ srcOffset0 + 2 ]; + const w0 = src0[ srcOffset0 + 3 ]; + + const x1 = src1[ srcOffset1 ]; + const y1 = src1[ srcOffset1 + 1 ]; + const z1 = src1[ srcOffset1 + 2 ]; + const w1 = src1[ srcOffset1 + 3 ]; + + dst[ dstOffset ] = x0 * w1 + w0 * x1 + y0 * z1 - z0 * y1; + dst[ dstOffset + 1 ] = y0 * w1 + w0 * y1 + z0 * x1 - x0 * z1; + dst[ dstOffset + 2 ] = z0 * w1 + w0 * z1 + x0 * y1 - y0 * x1; + dst[ dstOffset + 3 ] = w0 * w1 - x0 * x1 - y0 * y1 - z0 * z1; + + return dst; + + } + + get x() { + + return this._x; + + } + + set x( value ) { + + this._x = value; + this._onChangeCallback(); + + } + + get y() { + + return this._y; + + } + + set y( value ) { + + this._y = value; + this._onChangeCallback(); + + } + + get z() { + + return this._z; + + } + + set z( value ) { + + this._z = value; + this._onChangeCallback(); + + } + + get w() { + + return this._w; + + } + + set w( value ) { + + this._w = value; + this._onChangeCallback(); + + } + + set( x, y, z, w ) { + + this._x = x; + this._y = y; + this._z = z; + this._w = w; + + this._onChangeCallback(); + + return this; + + } + + clone() { + + return new this.constructor( this._x, this._y, this._z, this._w ); + + } + + copy( quaternion ) { + + this._x = quaternion.x; + this._y = quaternion.y; + this._z = quaternion.z; + this._w = quaternion.w; + + this._onChangeCallback(); + + return this; + + } + + setFromEuler( euler, update ) { + + if ( ! ( euler && euler.isEuler ) ) { + + throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' ); + + } + + const x = euler._x, y = euler._y, z = euler._z, order = euler._order; + + // http://www.mathworks.com/matlabcentral/fileexchange/ + // 20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/ + // content/SpinCalc.m + + const cos = Math.cos; + const sin = Math.sin; + + const c1 = cos( x / 2 ); + const c2 = cos( y / 2 ); + const c3 = cos( z / 2 ); + + const s1 = sin( x / 2 ); + const s2 = sin( y / 2 ); + const s3 = sin( z / 2 ); + + switch ( order ) { + + case 'XYZ': + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + break; + + case 'YXZ': + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + break; + + case 'ZXY': + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + break; + + case 'ZYX': + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + break; + + case 'YZX': + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + break; + + case 'XZY': + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + break; + + default: + console.warn( 'THREE.Quaternion: .setFromEuler() encountered an unknown order: ' + order ); + + } + + if ( update !== false ) this._onChangeCallback(); + + return this; + + } + + setFromAxisAngle( axis, angle ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm + + // assumes axis is normalized + + const halfAngle = angle / 2, s = Math.sin( halfAngle ); + + this._x = axis.x * s; + this._y = axis.y * s; + this._z = axis.z * s; + this._w = Math.cos( halfAngle ); + + this._onChangeCallback(); + + return this; + + } + + setFromRotationMatrix( m ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + const te = m.elements, + + m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ], + m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ], + m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ], + + trace = m11 + m22 + m33; + + if ( trace > 0 ) { + + const s = 0.5 / Math.sqrt( trace + 1.0 ); + + this._w = 0.25 / s; + this._x = ( m32 - m23 ) * s; + this._y = ( m13 - m31 ) * s; + this._z = ( m21 - m12 ) * s; + + } else if ( m11 > m22 && m11 > m33 ) { + + const s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 ); + + this._w = ( m32 - m23 ) / s; + this._x = 0.25 * s; + this._y = ( m12 + m21 ) / s; + this._z = ( m13 + m31 ) / s; + + } else if ( m22 > m33 ) { + + const s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 ); + + this._w = ( m13 - m31 ) / s; + this._x = ( m12 + m21 ) / s; + this._y = 0.25 * s; + this._z = ( m23 + m32 ) / s; + + } else { + + const s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 ); + + this._w = ( m21 - m12 ) / s; + this._x = ( m13 + m31 ) / s; + this._y = ( m23 + m32 ) / s; + this._z = 0.25 * s; + + } + + this._onChangeCallback(); + + return this; + + } + + setFromUnitVectors( vFrom, vTo ) { + + // assumes direction vectors vFrom and vTo are normalized + + const EPS = 0.000001; + + let r = vFrom.dot( vTo ) + 1; + + if ( r < EPS ) { + + r = 0; + + if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) { + + this._x = - vFrom.y; + this._y = vFrom.x; + this._z = 0; + this._w = r; + + } else { + + this._x = 0; + this._y = - vFrom.z; + this._z = vFrom.y; + this._w = r; + + } + + } else { + + // crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3 + + this._x = vFrom.y * vTo.z - vFrom.z * vTo.y; + this._y = vFrom.z * vTo.x - vFrom.x * vTo.z; + this._z = vFrom.x * vTo.y - vFrom.y * vTo.x; + this._w = r; + + } + + return this.normalize(); + + } + + angleTo( q ) { + + return 2 * Math.acos( Math.abs( MathUtils.clamp( this.dot( q ), - 1, 1 ) ) ); + + } + + rotateTowards( q, step ) { + + const angle = this.angleTo( q ); + + if ( angle === 0 ) return this; + + const t = Math.min( 1, step / angle ); + + this.slerp( q, t ); + + return this; + + } + + identity() { + + return this.set( 0, 0, 0, 1 ); + + } + + invert() { + + // quaternion is assumed to have unit length + + return this.conjugate(); + + } + + conjugate() { + + this._x *= - 1; + this._y *= - 1; + this._z *= - 1; + + this._onChangeCallback(); + + return this; + + } + + dot( v ) { + + return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w; + + } + + lengthSq() { + + return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w; + + } + + length() { + + return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w ); + + } + + normalize() { + + let l = this.length(); + + if ( l === 0 ) { + + this._x = 0; + this._y = 0; + this._z = 0; + this._w = 1; + + } else { + + l = 1 / l; + + this._x = this._x * l; + this._y = this._y * l; + this._z = this._z * l; + this._w = this._w * l; + + } + + this._onChangeCallback(); + + return this; + + } + + multiply( q, p ) { + + if ( p !== undefined ) { + + console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' ); + return this.multiplyQuaternions( q, p ); + + } + + return this.multiplyQuaternions( this, q ); + + } + + premultiply( q ) { + + return this.multiplyQuaternions( q, this ); + + } + + multiplyQuaternions( a, b ) { + + // from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm + + const qax = a._x, qay = a._y, qaz = a._z, qaw = a._w; + const qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w; + + this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby; + this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz; + this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx; + this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz; + + this._onChangeCallback(); + + return this; + + } + + slerp( qb, t ) { + + if ( t === 0 ) return this; + if ( t === 1 ) return this.copy( qb ); + + const x = this._x, y = this._y, z = this._z, w = this._w; + + // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/ + + let cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z; + + if ( cosHalfTheta < 0 ) { + + this._w = - qb._w; + this._x = - qb._x; + this._y = - qb._y; + this._z = - qb._z; + + cosHalfTheta = - cosHalfTheta; + + } else { + + this.copy( qb ); + + } + + if ( cosHalfTheta >= 1.0 ) { + + this._w = w; + this._x = x; + this._y = y; + this._z = z; + + return this; + + } + + const sqrSinHalfTheta = 1.0 - cosHalfTheta * cosHalfTheta; + + if ( sqrSinHalfTheta <= Number.EPSILON ) { + + const s = 1 - t; + this._w = s * w + t * this._w; + this._x = s * x + t * this._x; + this._y = s * y + t * this._y; + this._z = s * z + t * this._z; + + this.normalize(); + this._onChangeCallback(); + + return this; + + } + + const sinHalfTheta = Math.sqrt( sqrSinHalfTheta ); + const halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta ); + const ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta, + ratioB = Math.sin( t * halfTheta ) / sinHalfTheta; + + this._w = ( w * ratioA + this._w * ratioB ); + this._x = ( x * ratioA + this._x * ratioB ); + this._y = ( y * ratioA + this._y * ratioB ); + this._z = ( z * ratioA + this._z * ratioB ); + + this._onChangeCallback(); + + return this; + + } + + equals( quaternion ) { + + return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w ); + + } + + fromArray( array, offset = 0 ) { + + this._x = array[ offset ]; + this._y = array[ offset + 1 ]; + this._z = array[ offset + 2 ]; + this._w = array[ offset + 3 ]; + + this._onChangeCallback(); + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this._x; + array[ offset + 1 ] = this._y; + array[ offset + 2 ] = this._z; + array[ offset + 3 ] = this._w; + + return array; + + } + + fromBufferAttribute( attribute, index ) { + + this._x = attribute.getX( index ); + this._y = attribute.getY( index ); + this._z = attribute.getZ( index ); + this._w = attribute.getW( index ); + + return this; + + } + + _onChange( callback ) { + + this._onChangeCallback = callback; + + return this; + + } + + _onChangeCallback() {} + +} + +class Vector3 { + + constructor( x = 0, y = 0, z = 0 ) { + + Object.defineProperty( this, 'isVector3', { value: true } ); + + this.x = x; + this.y = y; + this.z = z; + + } + + set( x, y, z ) { + + if ( z === undefined ) z = this.z; // sprite.scale.set(x,y) + + this.x = x; + this.y = y; + this.z = z; + + return this; + + } + + setScalar( scalar ) { + + this.x = scalar; + this.y = scalar; + this.z = scalar; + + return this; + + } + + setX( x ) { + + this.x = x; + + return this; + + } + + setY( y ) { + + this.y = y; + + return this; + + } + + setZ( z ) { + + this.z = z; + + return this; + + } + + setComponent( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + case 2: this.z = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + } + + getComponent( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + case 2: return this.z; + default: throw new Error( 'index is out of range: ' + index ); + + } + + } + + clone() { + + return new this.constructor( this.x, this.y, this.z ); + + } + + copy( v ) { + + this.x = v.x; + this.y = v.y; + this.z = v.z; + + return this; + + } + + add( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + this.z += v.z; + + return this; + + } + + addScalar( s ) { + + this.x += s; + this.y += s; + this.z += s; + + return this; + + } + + addVectors( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + this.z = a.z + b.z; + + return this; + + } + + addScaledVector( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + this.z += v.z * s; + + return this; + + } + + sub( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + this.z -= v.z; + + return this; + + } + + subScalar( s ) { + + this.x -= s; + this.y -= s; + this.z -= s; + + return this; + + } + + subVectors( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + this.z = a.z - b.z; + + return this; + + } + + multiply( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' ); + return this.multiplyVectors( v, w ); + + } + + this.x *= v.x; + this.y *= v.y; + this.z *= v.z; + + return this; + + } + + multiplyScalar( scalar ) { + + this.x *= scalar; + this.y *= scalar; + this.z *= scalar; + + return this; + + } + + multiplyVectors( a, b ) { + + this.x = a.x * b.x; + this.y = a.y * b.y; + this.z = a.z * b.z; + + return this; + + } + + applyEuler( euler ) { + + if ( ! ( euler && euler.isEuler ) ) { + + console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' ); + + } + + return this.applyQuaternion( _quaternion.setFromEuler( euler ) ); + + } + + applyAxisAngle( axis, angle ) { + + return this.applyQuaternion( _quaternion.setFromAxisAngle( axis, angle ) ); + + } + + applyMatrix3( m ) { + + const x = this.x, y = this.y, z = this.z; + const e = m.elements; + + this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z; + this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z; + this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z; + + return this; + + } + + applyNormalMatrix( m ) { + + return this.applyMatrix3( m ).normalize(); + + } + + applyMatrix4( m ) { + + const x = this.x, y = this.y, z = this.z; + const e = m.elements; + + const w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] ); + + this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w; + this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w; + this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w; + + return this; + + } + + applyQuaternion( q ) { + + const x = this.x, y = this.y, z = this.z; + const qx = q.x, qy = q.y, qz = q.z, qw = q.w; + + // calculate quat * vector + + const ix = qw * x + qy * z - qz * y; + const iy = qw * y + qz * x - qx * z; + const iz = qw * z + qx * y - qy * x; + const iw = - qx * x - qy * y - qz * z; + + // calculate result * inverse quat + + this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy; + this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz; + this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx; + + return this; + + } + + project( camera ) { + + return this.applyMatrix4( camera.matrixWorldInverse ).applyMatrix4( camera.projectionMatrix ); + + } + + unproject( camera ) { + + return this.applyMatrix4( camera.projectionMatrixInverse ).applyMatrix4( camera.matrixWorld ); + + } + + transformDirection( m ) { + + // input: THREE.Matrix4 affine matrix + // vector interpreted as a direction + + const x = this.x, y = this.y, z = this.z; + const e = m.elements; + + this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z; + this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z; + this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z; + + return this.normalize(); + + } + + divide( v ) { + + this.x /= v.x; + this.y /= v.y; + this.z /= v.z; + + return this; + + } + + divideScalar( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + } + + min( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + this.z = Math.min( this.z, v.z ); + + return this; + + } + + max( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + this.z = Math.max( this.z, v.z ); + + return this; + + } + + clamp( min, max ) { + + // assumes min < max, componentwise + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + this.z = Math.max( min.z, Math.min( max.z, this.z ) ); + + return this; + + } + + clampScalar( minVal, maxVal ) { + + this.x = Math.max( minVal, Math.min( maxVal, this.x ) ); + this.y = Math.max( minVal, Math.min( maxVal, this.y ) ); + this.z = Math.max( minVal, Math.min( maxVal, this.z ) ); + + return this; + + } + + clampLength( min, max ) { + + const length = this.length(); + + return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) ); + + } + + floor() { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + this.z = Math.floor( this.z ); + + return this; + + } + + ceil() { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + this.z = Math.ceil( this.z ); + + return this; + + } + + round() { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + this.z = Math.round( this.z ); + + return this; + + } + + roundToZero() { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z ); + + return this; + + } + + negate() { + + this.x = - this.x; + this.y = - this.y; + this.z = - this.z; + + return this; + + } + + dot( v ) { + + return this.x * v.x + this.y * v.y + this.z * v.z; + + } + + // TODO lengthSquared? + + lengthSq() { + + return this.x * this.x + this.y * this.y + this.z * this.z; + + } + + length() { + + return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z ); + + } + + manhattanLength() { + + return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ); + + } + + normalize() { + + return this.divideScalar( this.length() || 1 ); + + } + + setLength( length ) { + + return this.normalize().multiplyScalar( length ); + + } + + lerp( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + this.z += ( v.z - this.z ) * alpha; + + return this; + + } + + lerpVectors( v1, v2, alpha ) { + + this.x = v1.x + ( v2.x - v1.x ) * alpha; + this.y = v1.y + ( v2.y - v1.y ) * alpha; + this.z = v1.z + ( v2.z - v1.z ) * alpha; + + return this; + + } + + cross( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' ); + return this.crossVectors( v, w ); + + } + + return this.crossVectors( this, v ); + + } + + crossVectors( a, b ) { + + const ax = a.x, ay = a.y, az = a.z; + const bx = b.x, by = b.y, bz = b.z; + + this.x = ay * bz - az * by; + this.y = az * bx - ax * bz; + this.z = ax * by - ay * bx; + + return this; + + } + + projectOnVector( v ) { + + const denominator = v.lengthSq(); + + if ( denominator === 0 ) return this.set( 0, 0, 0 ); + + const scalar = v.dot( this ) / denominator; + + return this.copy( v ).multiplyScalar( scalar ); + + } + + projectOnPlane( planeNormal ) { + + _vector.copy( this ).projectOnVector( planeNormal ); + + return this.sub( _vector ); + + } + + reflect( normal ) { + + // reflect incident vector off plane orthogonal to normal + // normal is assumed to have unit length + + return this.sub( _vector.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) ); + + } + + angleTo( v ) { + + const denominator = Math.sqrt( this.lengthSq() * v.lengthSq() ); + + if ( denominator === 0 ) return Math.PI / 2; + + const theta = this.dot( v ) / denominator; + + // clamp, to handle numerical problems + + return Math.acos( MathUtils.clamp( theta, - 1, 1 ) ); + + } + + distanceTo( v ) { + + return Math.sqrt( this.distanceToSquared( v ) ); + + } + + distanceToSquared( v ) { + + const dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z; + + return dx * dx + dy * dy + dz * dz; + + } + + manhattanDistanceTo( v ) { + + return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z ); + + } + + setFromSpherical( s ) { + + return this.setFromSphericalCoords( s.radius, s.phi, s.theta ); + + } + + setFromSphericalCoords( radius, phi, theta ) { + + const sinPhiRadius = Math.sin( phi ) * radius; + + this.x = sinPhiRadius * Math.sin( theta ); + this.y = Math.cos( phi ) * radius; + this.z = sinPhiRadius * Math.cos( theta ); + + return this; + + } + + setFromCylindrical( c ) { + + return this.setFromCylindricalCoords( c.radius, c.theta, c.y ); + + } + + setFromCylindricalCoords( radius, theta, y ) { + + this.x = radius * Math.sin( theta ); + this.y = y; + this.z = radius * Math.cos( theta ); + + return this; + + } + + setFromMatrixPosition( m ) { + + const e = m.elements; + + this.x = e[ 12 ]; + this.y = e[ 13 ]; + this.z = e[ 14 ]; + + return this; + + } + + setFromMatrixScale( m ) { + + const sx = this.setFromMatrixColumn( m, 0 ).length(); + const sy = this.setFromMatrixColumn( m, 1 ).length(); + const sz = this.setFromMatrixColumn( m, 2 ).length(); + + this.x = sx; + this.y = sy; + this.z = sz; + + return this; + + } + + setFromMatrixColumn( m, index ) { + + return this.fromArray( m.elements, index * 4 ); + + } + + setFromMatrix3Column( m, index ) { + + return this.fromArray( m.elements, index * 3 ); + + } + + equals( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) ); + + } + + fromArray( array, offset = 0 ) { + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + this.z = array[ offset + 2 ]; + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + array[ offset + 2 ] = this.z; + + return array; + + } + + fromBufferAttribute( attribute, index, offset ) { + + if ( offset !== undefined ) { + + console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' ); + + } + + this.x = attribute.getX( index ); + this.y = attribute.getY( index ); + this.z = attribute.getZ( index ); + + return this; + + } + + random() { + + this.x = Math.random(); + this.y = Math.random(); + this.z = Math.random(); + + return this; + + } + +} + +const _vector = /*@__PURE__*/ new Vector3(); +const _quaternion = /*@__PURE__*/ new Quaternion(); + +class Box3 { + + constructor( min, max ) { + + Object.defineProperty( this, 'isBox3', { value: true } ); + + this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity ); + this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity ); + + } + + set( min, max ) { + + this.min.copy( min ); + this.max.copy( max ); + + return this; + + } + + setFromArray( array ) { + + let minX = + Infinity; + let minY = + Infinity; + let minZ = + Infinity; + + let maxX = - Infinity; + let maxY = - Infinity; + let maxZ = - Infinity; + + for ( let i = 0, l = array.length; i < l; i += 3 ) { + + const x = array[ i ]; + const y = array[ i + 1 ]; + const z = array[ i + 2 ]; + + if ( x < minX ) minX = x; + if ( y < minY ) minY = y; + if ( z < minZ ) minZ = z; + + if ( x > maxX ) maxX = x; + if ( y > maxY ) maxY = y; + if ( z > maxZ ) maxZ = z; + + } + + this.min.set( minX, minY, minZ ); + this.max.set( maxX, maxY, maxZ ); + + return this; + + } + + setFromBufferAttribute( attribute ) { + + let minX = + Infinity; + let minY = + Infinity; + let minZ = + Infinity; + + let maxX = - Infinity; + let maxY = - Infinity; + let maxZ = - Infinity; + + for ( let i = 0, l = attribute.count; i < l; i ++ ) { + + const x = attribute.getX( i ); + const y = attribute.getY( i ); + const z = attribute.getZ( i ); + + if ( x < minX ) minX = x; + if ( y < minY ) minY = y; + if ( z < minZ ) minZ = z; + + if ( x > maxX ) maxX = x; + if ( y > maxY ) maxY = y; + if ( z > maxZ ) maxZ = z; + + } + + this.min.set( minX, minY, minZ ); + this.max.set( maxX, maxY, maxZ ); + + return this; + + } + + setFromPoints( points ) { + + this.makeEmpty(); + + for ( let i = 0, il = points.length; i < il; i ++ ) { + + this.expandByPoint( points[ i ] ); + + } + + return this; + + } + + setFromCenterAndSize( center, size ) { + + const halfSize = _vector$1.copy( size ).multiplyScalar( 0.5 ); + + this.min.copy( center ).sub( halfSize ); + this.max.copy( center ).add( halfSize ); + + return this; + + } + + setFromObject( object ) { + + this.makeEmpty(); + + return this.expandByObject( object ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( box ) { + + this.min.copy( box.min ); + this.max.copy( box.max ); + + return this; + + } + + makeEmpty() { + + this.min.x = this.min.y = this.min.z = + Infinity; + this.max.x = this.max.y = this.max.z = - Infinity; + + return this; + + } + + isEmpty() { + + // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes + + return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z ); + + } + + getCenter( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Box3: .getCenter() target is now required' ); + target = new Vector3(); + + } + + return this.isEmpty() ? target.set( 0, 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 ); + + } + + getSize( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Box3: .getSize() target is now required' ); + target = new Vector3(); + + } + + return this.isEmpty() ? target.set( 0, 0, 0 ) : target.subVectors( this.max, this.min ); + + } + + expandByPoint( point ) { + + this.min.min( point ); + this.max.max( point ); + + return this; + + } + + expandByVector( vector ) { + + this.min.sub( vector ); + this.max.add( vector ); + + return this; + + } + + expandByScalar( scalar ) { + + this.min.addScalar( - scalar ); + this.max.addScalar( scalar ); + + return this; + + } + + expandByObject( object ) { + + // Computes the world-axis-aligned bounding box of an object (including its children), + // accounting for both the object's, and children's, world transforms + + object.updateWorldMatrix( false, false ); + + const geometry = object.geometry; + + if ( geometry !== undefined ) { + + if ( geometry.boundingBox === null ) { + + geometry.computeBoundingBox(); + + } + + _box.copy( geometry.boundingBox ); + _box.applyMatrix4( object.matrixWorld ); + + this.union( _box ); + + } + + const children = object.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + this.expandByObject( children[ i ] ); + + } + + return this; + + } + + containsPoint( point ) { + + return point.x < this.min.x || point.x > this.max.x || + point.y < this.min.y || point.y > this.max.y || + point.z < this.min.z || point.z > this.max.z ? false : true; + + } + + containsBox( box ) { + + return this.min.x <= box.min.x && box.max.x <= this.max.x && + this.min.y <= box.min.y && box.max.y <= this.max.y && + this.min.z <= box.min.z && box.max.z <= this.max.z; + + } + + getParameter( point, target ) { + + // This can potentially have a divide by zero if the box + // has a size dimension of 0. + + if ( target === undefined ) { + + console.warn( 'THREE.Box3: .getParameter() target is now required' ); + target = new Vector3(); + + } + + return target.set( + ( point.x - this.min.x ) / ( this.max.x - this.min.x ), + ( point.y - this.min.y ) / ( this.max.y - this.min.y ), + ( point.z - this.min.z ) / ( this.max.z - this.min.z ) + ); + + } + + intersectsBox( box ) { + + // using 6 splitting planes to rule out intersections. + return box.max.x < this.min.x || box.min.x > this.max.x || + box.max.y < this.min.y || box.min.y > this.max.y || + box.max.z < this.min.z || box.min.z > this.max.z ? false : true; + + } + + intersectsSphere( sphere ) { + + // Find the point on the AABB closest to the sphere center. + this.clampPoint( sphere.center, _vector$1 ); + + // If that point is inside the sphere, the AABB and sphere intersect. + return _vector$1.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius ); + + } + + intersectsPlane( plane ) { + + // We compute the minimum and maximum dot product values. If those values + // are on the same side (back or front) of the plane, then there is no intersection. + + let min, max; + + if ( plane.normal.x > 0 ) { + + min = plane.normal.x * this.min.x; + max = plane.normal.x * this.max.x; + + } else { + + min = plane.normal.x * this.max.x; + max = plane.normal.x * this.min.x; + + } + + if ( plane.normal.y > 0 ) { + + min += plane.normal.y * this.min.y; + max += plane.normal.y * this.max.y; + + } else { + + min += plane.normal.y * this.max.y; + max += plane.normal.y * this.min.y; + + } + + if ( plane.normal.z > 0 ) { + + min += plane.normal.z * this.min.z; + max += plane.normal.z * this.max.z; + + } else { + + min += plane.normal.z * this.max.z; + max += plane.normal.z * this.min.z; + + } + + return ( min <= - plane.constant && max >= - plane.constant ); + + } + + intersectsTriangle( triangle ) { + + if ( this.isEmpty() ) { + + return false; + + } + + // compute box center and extents + this.getCenter( _center ); + _extents.subVectors( this.max, _center ); + + // translate triangle to aabb origin + _v0.subVectors( triangle.a, _center ); + _v1.subVectors( triangle.b, _center ); + _v2.subVectors( triangle.c, _center ); + + // compute edge vectors for triangle + _f0.subVectors( _v1, _v0 ); + _f1.subVectors( _v2, _v1 ); + _f2.subVectors( _v0, _v2 ); + + // test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb + // make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation + // axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned) + let axes = [ + 0, - _f0.z, _f0.y, 0, - _f1.z, _f1.y, 0, - _f2.z, _f2.y, + _f0.z, 0, - _f0.x, _f1.z, 0, - _f1.x, _f2.z, 0, - _f2.x, + - _f0.y, _f0.x, 0, - _f1.y, _f1.x, 0, - _f2.y, _f2.x, 0 + ]; + if ( ! satForAxes( axes, _v0, _v1, _v2, _extents ) ) { + + return false; + + } + + // test 3 face normals from the aabb + axes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ]; + if ( ! satForAxes( axes, _v0, _v1, _v2, _extents ) ) { + + return false; + + } + + // finally testing the face normal of the triangle + // use already existing triangle edge vectors here + _triangleNormal.crossVectors( _f0, _f1 ); + axes = [ _triangleNormal.x, _triangleNormal.y, _triangleNormal.z ]; + + return satForAxes( axes, _v0, _v1, _v2, _extents ); + + } + + clampPoint( point, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Box3: .clampPoint() target is now required' ); + target = new Vector3(); + + } + + return target.copy( point ).clamp( this.min, this.max ); + + } + + distanceToPoint( point ) { + + const clampedPoint = _vector$1.copy( point ).clamp( this.min, this.max ); + + return clampedPoint.sub( point ).length(); + + } + + getBoundingSphere( target ) { + + if ( target === undefined ) { + + console.error( 'THREE.Box3: .getBoundingSphere() target is now required' ); + //target = new Sphere(); // removed to avoid cyclic dependency + + } + + this.getCenter( target.center ); + + target.radius = this.getSize( _vector$1 ).length() * 0.5; + + return target; + + } + + intersect( box ) { + + this.min.max( box.min ); + this.max.min( box.max ); + + // ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values. + if ( this.isEmpty() ) this.makeEmpty(); + + return this; + + } + + union( box ) { + + this.min.min( box.min ); + this.max.max( box.max ); + + return this; + + } + + applyMatrix4( matrix ) { + + // transform of empty box is an empty box. + if ( this.isEmpty() ) return this; + + // NOTE: I am using a binary pattern to specify all 2^3 combinations below + _points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000 + _points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001 + _points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010 + _points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011 + _points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100 + _points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101 + _points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110 + _points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 111 + + this.setFromPoints( _points ); + + return this; + + } + + translate( offset ) { + + this.min.add( offset ); + this.max.add( offset ); + + return this; + + } + + equals( box ) { + + return box.min.equals( this.min ) && box.max.equals( this.max ); + + } + +} + +function satForAxes( axes, v0, v1, v2, extents ) { + + for ( let i = 0, j = axes.length - 3; i <= j; i += 3 ) { + + _testAxis.fromArray( axes, i ); + // project the aabb onto the seperating axis + const r = extents.x * Math.abs( _testAxis.x ) + extents.y * Math.abs( _testAxis.y ) + extents.z * Math.abs( _testAxis.z ); + // project all 3 vertices of the triangle onto the seperating axis + const p0 = v0.dot( _testAxis ); + const p1 = v1.dot( _testAxis ); + const p2 = v2.dot( _testAxis ); + // actual test, basically see if either of the most extreme of the triangle points intersects r + if ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) { + + // points of the projected triangle are outside the projected half-length of the aabb + // the axis is seperating and we can exit + return false; + + } + + } + + return true; + +} + +const _points = [ + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3(), + /*@__PURE__*/ new Vector3() +]; + +const _vector$1 = /*@__PURE__*/ new Vector3(); + +const _box = /*@__PURE__*/ new Box3(); + +// triangle centered vertices + +const _v0 = /*@__PURE__*/ new Vector3(); +const _v1 = /*@__PURE__*/ new Vector3(); +const _v2 = /*@__PURE__*/ new Vector3(); + +// triangle edge vectors + +const _f0 = /*@__PURE__*/ new Vector3(); +const _f1 = /*@__PURE__*/ new Vector3(); +const _f2 = /*@__PURE__*/ new Vector3(); + +const _center = /*@__PURE__*/ new Vector3(); +const _extents = /*@__PURE__*/ new Vector3(); +const _triangleNormal = /*@__PURE__*/ new Vector3(); +const _testAxis = /*@__PURE__*/ new Vector3(); + +const _box$1 = /*@__PURE__*/ new Box3(); + +class Sphere { + + constructor( center, radius ) { + + this.center = ( center !== undefined ) ? center : new Vector3(); + this.radius = ( radius !== undefined ) ? radius : - 1; + + } + + set( center, radius ) { + + this.center.copy( center ); + this.radius = radius; + + return this; + + } + + setFromPoints( points, optionalCenter ) { + + const center = this.center; + + if ( optionalCenter !== undefined ) { + + center.copy( optionalCenter ); + + } else { + + _box$1.setFromPoints( points ).getCenter( center ); + + } + + let maxRadiusSq = 0; + + for ( let i = 0, il = points.length; i < il; i ++ ) { + + maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) ); + + } + + this.radius = Math.sqrt( maxRadiusSq ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( sphere ) { + + this.center.copy( sphere.center ); + this.radius = sphere.radius; + + return this; + + } + + isEmpty() { + + return ( this.radius < 0 ); + + } + + makeEmpty() { + + this.center.set( 0, 0, 0 ); + this.radius = - 1; + + return this; + + } + + containsPoint( point ) { + + return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) ); + + } + + distanceToPoint( point ) { + + return ( point.distanceTo( this.center ) - this.radius ); + + } + + intersectsSphere( sphere ) { + + const radiusSum = this.radius + sphere.radius; + + return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum ); + + } + + intersectsBox( box ) { + + return box.intersectsSphere( this ); + + } + + intersectsPlane( plane ) { + + return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius; + + } + + clampPoint( point, target ) { + + const deltaLengthSq = this.center.distanceToSquared( point ); + + if ( target === undefined ) { + + console.warn( 'THREE.Sphere: .clampPoint() target is now required' ); + target = new Vector3(); + + } + + target.copy( point ); + + if ( deltaLengthSq > ( this.radius * this.radius ) ) { + + target.sub( this.center ).normalize(); + target.multiplyScalar( this.radius ).add( this.center ); + + } + + return target; + + } + + getBoundingBox( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Sphere: .getBoundingBox() target is now required' ); + target = new Box3(); + + } + + if ( this.isEmpty() ) { + + // Empty sphere produces empty bounding box + target.makeEmpty(); + return target; + + } + + target.set( this.center, this.center ); + target.expandByScalar( this.radius ); + + return target; + + } + + applyMatrix4( matrix ) { + + this.center.applyMatrix4( matrix ); + this.radius = this.radius * matrix.getMaxScaleOnAxis(); + + return this; + + } + + translate( offset ) { + + this.center.add( offset ); + + return this; + + } + + equals( sphere ) { + + return sphere.center.equals( this.center ) && ( sphere.radius === this.radius ); + + } + +} + +const _vector$2 = /*@__PURE__*/ new Vector3(); +const _segCenter = /*@__PURE__*/ new Vector3(); +const _segDir = /*@__PURE__*/ new Vector3(); +const _diff = /*@__PURE__*/ new Vector3(); + +const _edge1 = /*@__PURE__*/ new Vector3(); +const _edge2 = /*@__PURE__*/ new Vector3(); +const _normal = /*@__PURE__*/ new Vector3(); + +class Ray { + + constructor( origin, direction ) { + + this.origin = ( origin !== undefined ) ? origin : new Vector3(); + this.direction = ( direction !== undefined ) ? direction : new Vector3( 0, 0, - 1 ); + + } + + set( origin, direction ) { + + this.origin.copy( origin ); + this.direction.copy( direction ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( ray ) { + + this.origin.copy( ray.origin ); + this.direction.copy( ray.direction ); + + return this; + + } + + at( t, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Ray: .at() target is now required' ); + target = new Vector3(); + + } + + return target.copy( this.direction ).multiplyScalar( t ).add( this.origin ); + + } + + lookAt( v ) { + + this.direction.copy( v ).sub( this.origin ).normalize(); + + return this; + + } + + recast( t ) { + + this.origin.copy( this.at( t, _vector$2 ) ); + + return this; + + } + + closestPointToPoint( point, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Ray: .closestPointToPoint() target is now required' ); + target = new Vector3(); + + } + + target.subVectors( point, this.origin ); + + const directionDistance = target.dot( this.direction ); + + if ( directionDistance < 0 ) { + + return target.copy( this.origin ); + + } + + return target.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin ); + + } + + distanceToPoint( point ) { + + return Math.sqrt( this.distanceSqToPoint( point ) ); + + } + + distanceSqToPoint( point ) { + + const directionDistance = _vector$2.subVectors( point, this.origin ).dot( this.direction ); + + // point behind the ray + + if ( directionDistance < 0 ) { + + return this.origin.distanceToSquared( point ); + + } + + _vector$2.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin ); + + return _vector$2.distanceToSquared( point ); + + } + + distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) { + + // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h + // It returns the min distance between the ray and the segment + // defined by v0 and v1 + // It can also set two optional targets : + // - The closest point on the ray + // - The closest point on the segment + + _segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 ); + _segDir.copy( v1 ).sub( v0 ).normalize(); + _diff.copy( this.origin ).sub( _segCenter ); + + const segExtent = v0.distanceTo( v1 ) * 0.5; + const a01 = - this.direction.dot( _segDir ); + const b0 = _diff.dot( this.direction ); + const b1 = - _diff.dot( _segDir ); + const c = _diff.lengthSq(); + const det = Math.abs( 1 - a01 * a01 ); + let s0, s1, sqrDist, extDet; + + if ( det > 0 ) { + + // The ray and segment are not parallel. + + s0 = a01 * b1 - b0; + s1 = a01 * b0 - b1; + extDet = segExtent * det; + + if ( s0 >= 0 ) { + + if ( s1 >= - extDet ) { + + if ( s1 <= extDet ) { + + // region 0 + // Minimum at interior points of ray and segment. + + const invDet = 1 / det; + s0 *= invDet; + s1 *= invDet; + sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c; + + } else { + + // region 1 + + s1 = segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } else { + + // region 5 + + s1 = - segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } else { + + if ( s1 <= - extDet ) { + + // region 4 + + s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) ); + s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } else if ( s1 <= extDet ) { + + // region 3 + + s0 = 0; + s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = s1 * ( s1 + 2 * b1 ) + c; + + } else { + + // region 2 + + s0 = Math.max( 0, - ( a01 * segExtent + b0 ) ); + s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } + + } else { + + // Ray and segment are parallel. + + s1 = ( a01 > 0 ) ? - segExtent : segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + if ( optionalPointOnRay ) { + + optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin ); + + } + + if ( optionalPointOnSegment ) { + + optionalPointOnSegment.copy( _segDir ).multiplyScalar( s1 ).add( _segCenter ); + + } + + return sqrDist; + + } + + intersectSphere( sphere, target ) { + + _vector$2.subVectors( sphere.center, this.origin ); + const tca = _vector$2.dot( this.direction ); + const d2 = _vector$2.dot( _vector$2 ) - tca * tca; + const radius2 = sphere.radius * sphere.radius; + + if ( d2 > radius2 ) return null; + + const thc = Math.sqrt( radius2 - d2 ); + + // t0 = first intersect point - entrance on front of sphere + const t0 = tca - thc; + + // t1 = second intersect point - exit point on back of sphere + const t1 = tca + thc; + + // test to see if both t0 and t1 are behind the ray - if so, return null + if ( t0 < 0 && t1 < 0 ) return null; + + // test to see if t0 is behind the ray: + // if it is, the ray is inside the sphere, so return the second exit point scaled by t1, + // in order to always return an intersect point that is in front of the ray. + if ( t0 < 0 ) return this.at( t1, target ); + + // else t0 is in front of the ray, so return the first collision point scaled by t0 + return this.at( t0, target ); + + } + + intersectsSphere( sphere ) { + + return this.distanceSqToPoint( sphere.center ) <= ( sphere.radius * sphere.radius ); + + } + + distanceToPlane( plane ) { + + const denominator = plane.normal.dot( this.direction ); + + if ( denominator === 0 ) { + + // line is coplanar, return origin + if ( plane.distanceToPoint( this.origin ) === 0 ) { + + return 0; + + } + + // Null is preferable to undefined since undefined means.... it is undefined + + return null; + + } + + const t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator; + + // Return if the ray never intersects the plane + + return t >= 0 ? t : null; + + } + + intersectPlane( plane, target ) { + + const t = this.distanceToPlane( plane ); + + if ( t === null ) { + + return null; + + } + + return this.at( t, target ); + + } + + intersectsPlane( plane ) { + + // check if the ray lies on the plane first + + const distToPoint = plane.distanceToPoint( this.origin ); + + if ( distToPoint === 0 ) { + + return true; + + } + + const denominator = plane.normal.dot( this.direction ); + + if ( denominator * distToPoint < 0 ) { + + return true; + + } + + // ray origin is behind the plane (and is pointing behind it) + + return false; + + } + + intersectBox( box, target ) { + + let tmin, tmax, tymin, tymax, tzmin, tzmax; + + const invdirx = 1 / this.direction.x, + invdiry = 1 / this.direction.y, + invdirz = 1 / this.direction.z; + + const origin = this.origin; + + if ( invdirx >= 0 ) { + + tmin = ( box.min.x - origin.x ) * invdirx; + tmax = ( box.max.x - origin.x ) * invdirx; + + } else { + + tmin = ( box.max.x - origin.x ) * invdirx; + tmax = ( box.min.x - origin.x ) * invdirx; + + } + + if ( invdiry >= 0 ) { + + tymin = ( box.min.y - origin.y ) * invdiry; + tymax = ( box.max.y - origin.y ) * invdiry; + + } else { + + tymin = ( box.max.y - origin.y ) * invdiry; + tymax = ( box.min.y - origin.y ) * invdiry; + + } + + if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null; + + // These lines also handle the case where tmin or tmax is NaN + // (result of 0 * Infinity). x !== x returns true if x is NaN + + if ( tymin > tmin || tmin !== tmin ) tmin = tymin; + + if ( tymax < tmax || tmax !== tmax ) tmax = tymax; + + if ( invdirz >= 0 ) { + + tzmin = ( box.min.z - origin.z ) * invdirz; + tzmax = ( box.max.z - origin.z ) * invdirz; + + } else { + + tzmin = ( box.max.z - origin.z ) * invdirz; + tzmax = ( box.min.z - origin.z ) * invdirz; + + } + + if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null; + + if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin; + + if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax; + + //return point closest to the ray (positive side) + + if ( tmax < 0 ) return null; + + return this.at( tmin >= 0 ? tmin : tmax, target ); + + } + + intersectsBox( box ) { + + return this.intersectBox( box, _vector$2 ) !== null; + + } + + intersectTriangle( a, b, c, backfaceCulling, target ) { + + // Compute the offset origin, edges, and normal. + + // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h + + _edge1.subVectors( b, a ); + _edge2.subVectors( c, a ); + _normal.crossVectors( _edge1, _edge2 ); + + // Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction, + // E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by + // |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2)) + // |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q)) + // |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N) + let DdN = this.direction.dot( _normal ); + let sign; + + if ( DdN > 0 ) { + + if ( backfaceCulling ) return null; + sign = 1; + + } else if ( DdN < 0 ) { + + sign = - 1; + DdN = - DdN; + + } else { + + return null; + + } + + _diff.subVectors( this.origin, a ); + const DdQxE2 = sign * this.direction.dot( _edge2.crossVectors( _diff, _edge2 ) ); + + // b1 < 0, no intersection + if ( DdQxE2 < 0 ) { + + return null; + + } + + const DdE1xQ = sign * this.direction.dot( _edge1.cross( _diff ) ); + + // b2 < 0, no intersection + if ( DdE1xQ < 0 ) { + + return null; + + } + + // b1+b2 > 1, no intersection + if ( DdQxE2 + DdE1xQ > DdN ) { + + return null; + + } + + // Line intersects triangle, check if ray does. + const QdN = - sign * _diff.dot( _normal ); + + // t < 0, no intersection + if ( QdN < 0 ) { + + return null; + + } + + // Ray intersects triangle. + return this.at( QdN / DdN, target ); + + } + + applyMatrix4( matrix4 ) { + + this.origin.applyMatrix4( matrix4 ); + this.direction.transformDirection( matrix4 ); + + return this; + + } + + equals( ray ) { + + return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction ); + + } + +} + +class Matrix4 { + + constructor() { + + Object.defineProperty( this, 'isMatrix4', { value: true } ); + + this.elements = [ + + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ]; + + if ( arguments.length > 0 ) { + + console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' ); + + } + + } + + set( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) { + + const te = this.elements; + + te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14; + te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24; + te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34; + te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44; + + return this; + + } + + identity() { + + this.set( + + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + clone() { + + return new Matrix4().fromArray( this.elements ); + + } + + copy( m ) { + + const te = this.elements; + const me = m.elements; + + te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ]; + te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; + te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ]; + te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ]; + + return this; + + } + + copyPosition( m ) { + + const te = this.elements, me = m.elements; + + te[ 12 ] = me[ 12 ]; + te[ 13 ] = me[ 13 ]; + te[ 14 ] = me[ 14 ]; + + return this; + + } + + extractBasis( xAxis, yAxis, zAxis ) { + + xAxis.setFromMatrixColumn( this, 0 ); + yAxis.setFromMatrixColumn( this, 1 ); + zAxis.setFromMatrixColumn( this, 2 ); + + return this; + + } + + makeBasis( xAxis, yAxis, zAxis ) { + + this.set( + xAxis.x, yAxis.x, zAxis.x, 0, + xAxis.y, yAxis.y, zAxis.y, 0, + xAxis.z, yAxis.z, zAxis.z, 0, + 0, 0, 0, 1 + ); + + return this; + + } + + extractRotation( m ) { + + // this method does not support reflection matrices + + const te = this.elements; + const me = m.elements; + + const scaleX = 1 / _v1$1.setFromMatrixColumn( m, 0 ).length(); + const scaleY = 1 / _v1$1.setFromMatrixColumn( m, 1 ).length(); + const scaleZ = 1 / _v1$1.setFromMatrixColumn( m, 2 ).length(); + + te[ 0 ] = me[ 0 ] * scaleX; + te[ 1 ] = me[ 1 ] * scaleX; + te[ 2 ] = me[ 2 ] * scaleX; + te[ 3 ] = 0; + + te[ 4 ] = me[ 4 ] * scaleY; + te[ 5 ] = me[ 5 ] * scaleY; + te[ 6 ] = me[ 6 ] * scaleY; + te[ 7 ] = 0; + + te[ 8 ] = me[ 8 ] * scaleZ; + te[ 9 ] = me[ 9 ] * scaleZ; + te[ 10 ] = me[ 10 ] * scaleZ; + te[ 11 ] = 0; + + te[ 12 ] = 0; + te[ 13 ] = 0; + te[ 14 ] = 0; + te[ 15 ] = 1; + + return this; + + } + + makeRotationFromEuler( euler ) { + + if ( ! ( euler && euler.isEuler ) ) { + + console.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' ); + + } + + const te = this.elements; + + const x = euler.x, y = euler.y, z = euler.z; + const a = Math.cos( x ), b = Math.sin( x ); + const c = Math.cos( y ), d = Math.sin( y ); + const e = Math.cos( z ), f = Math.sin( z ); + + if ( euler.order === 'XYZ' ) { + + const ae = a * e, af = a * f, be = b * e, bf = b * f; + + te[ 0 ] = c * e; + te[ 4 ] = - c * f; + te[ 8 ] = d; + + te[ 1 ] = af + be * d; + te[ 5 ] = ae - bf * d; + te[ 9 ] = - b * c; + + te[ 2 ] = bf - ae * d; + te[ 6 ] = be + af * d; + te[ 10 ] = a * c; + + } else if ( euler.order === 'YXZ' ) { + + const ce = c * e, cf = c * f, de = d * e, df = d * f; + + te[ 0 ] = ce + df * b; + te[ 4 ] = de * b - cf; + te[ 8 ] = a * d; + + te[ 1 ] = a * f; + te[ 5 ] = a * e; + te[ 9 ] = - b; + + te[ 2 ] = cf * b - de; + te[ 6 ] = df + ce * b; + te[ 10 ] = a * c; + + } else if ( euler.order === 'ZXY' ) { + + const ce = c * e, cf = c * f, de = d * e, df = d * f; + + te[ 0 ] = ce - df * b; + te[ 4 ] = - a * f; + te[ 8 ] = de + cf * b; + + te[ 1 ] = cf + de * b; + te[ 5 ] = a * e; + te[ 9 ] = df - ce * b; + + te[ 2 ] = - a * d; + te[ 6 ] = b; + te[ 10 ] = a * c; + + } else if ( euler.order === 'ZYX' ) { + + const ae = a * e, af = a * f, be = b * e, bf = b * f; + + te[ 0 ] = c * e; + te[ 4 ] = be * d - af; + te[ 8 ] = ae * d + bf; + + te[ 1 ] = c * f; + te[ 5 ] = bf * d + ae; + te[ 9 ] = af * d - be; + + te[ 2 ] = - d; + te[ 6 ] = b * c; + te[ 10 ] = a * c; + + } else if ( euler.order === 'YZX' ) { + + const ac = a * c, ad = a * d, bc = b * c, bd = b * d; + + te[ 0 ] = c * e; + te[ 4 ] = bd - ac * f; + te[ 8 ] = bc * f + ad; + + te[ 1 ] = f; + te[ 5 ] = a * e; + te[ 9 ] = - b * e; + + te[ 2 ] = - d * e; + te[ 6 ] = ad * f + bc; + te[ 10 ] = ac - bd * f; + + } else if ( euler.order === 'XZY' ) { + + const ac = a * c, ad = a * d, bc = b * c, bd = b * d; + + te[ 0 ] = c * e; + te[ 4 ] = - f; + te[ 8 ] = d * e; + + te[ 1 ] = ac * f + bd; + te[ 5 ] = a * e; + te[ 9 ] = ad * f - bc; + + te[ 2 ] = bc * f - ad; + te[ 6 ] = b * e; + te[ 10 ] = bd * f + ac; + + } + + // bottom row + te[ 3 ] = 0; + te[ 7 ] = 0; + te[ 11 ] = 0; + + // last column + te[ 12 ] = 0; + te[ 13 ] = 0; + te[ 14 ] = 0; + te[ 15 ] = 1; + + return this; + + } + + makeRotationFromQuaternion( q ) { + + return this.compose( _zero, q, _one ); + + } + + lookAt( eye, target, up ) { + + const te = this.elements; + + _z.subVectors( eye, target ); + + if ( _z.lengthSq() === 0 ) { + + // eye and target are in the same position + + _z.z = 1; + + } + + _z.normalize(); + _x.crossVectors( up, _z ); + + if ( _x.lengthSq() === 0 ) { + + // up and z are parallel + + if ( Math.abs( up.z ) === 1 ) { + + _z.x += 0.0001; + + } else { + + _z.z += 0.0001; + + } + + _z.normalize(); + _x.crossVectors( up, _z ); + + } + + _x.normalize(); + _y.crossVectors( _z, _x ); + + te[ 0 ] = _x.x; te[ 4 ] = _y.x; te[ 8 ] = _z.x; + te[ 1 ] = _x.y; te[ 5 ] = _y.y; te[ 9 ] = _z.y; + te[ 2 ] = _x.z; te[ 6 ] = _y.z; te[ 10 ] = _z.z; + + return this; + + } + + multiply( m, n ) { + + if ( n !== undefined ) { + + console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' ); + return this.multiplyMatrices( m, n ); + + } + + return this.multiplyMatrices( this, m ); + + } + + premultiply( m ) { + + return this.multiplyMatrices( m, this ); + + } + + multiplyMatrices( a, b ) { + + const ae = a.elements; + const be = b.elements; + const te = this.elements; + + const a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ]; + const a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ]; + const a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ]; + const a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ]; + + const b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ]; + const b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ]; + const b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ]; + const b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ]; + + te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41; + te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42; + te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43; + te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44; + + te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41; + te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42; + te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43; + te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44; + + te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41; + te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42; + te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43; + te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44; + + te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41; + te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42; + te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43; + te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44; + + return this; + + } + + multiplyScalar( s ) { + + const te = this.elements; + + te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s; + te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s; + te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s; + te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s; + + return this; + + } + + determinant() { + + const te = this.elements; + + const n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ]; + const n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ]; + const n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ]; + const n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ]; + + //TODO: make this more efficient + //( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm ) + + return ( + n41 * ( + + n14 * n23 * n32 + - n13 * n24 * n32 + - n14 * n22 * n33 + + n12 * n24 * n33 + + n13 * n22 * n34 + - n12 * n23 * n34 + ) + + n42 * ( + + n11 * n23 * n34 + - n11 * n24 * n33 + + n14 * n21 * n33 + - n13 * n21 * n34 + + n13 * n24 * n31 + - n14 * n23 * n31 + ) + + n43 * ( + + n11 * n24 * n32 + - n11 * n22 * n34 + - n14 * n21 * n32 + + n12 * n21 * n34 + + n14 * n22 * n31 + - n12 * n24 * n31 + ) + + n44 * ( + - n13 * n22 * n31 + - n11 * n23 * n32 + + n11 * n22 * n33 + + n13 * n21 * n32 + - n12 * n21 * n33 + + n12 * n23 * n31 + ) + + ); + + } + + transpose() { + + const te = this.elements; + let tmp; + + tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp; + tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp; + tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp; + + tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp; + tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp; + tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp; + + return this; + + } + + setPosition( x, y, z ) { + + const te = this.elements; + + if ( x.isVector3 ) { + + te[ 12 ] = x.x; + te[ 13 ] = x.y; + te[ 14 ] = x.z; + + } else { + + te[ 12 ] = x; + te[ 13 ] = y; + te[ 14 ] = z; + + } + + return this; + + } + + invert() { + + // based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm + const te = this.elements, + + n11 = te[ 0 ], n21 = te[ 1 ], n31 = te[ 2 ], n41 = te[ 3 ], + n12 = te[ 4 ], n22 = te[ 5 ], n32 = te[ 6 ], n42 = te[ 7 ], + n13 = te[ 8 ], n23 = te[ 9 ], n33 = te[ 10 ], n43 = te[ 11 ], + n14 = te[ 12 ], n24 = te[ 13 ], n34 = te[ 14 ], n44 = te[ 15 ], + + t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44, + t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44, + t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44, + t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34; + + const det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14; + + if ( det === 0 ) return this.set( 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ); + + const detInv = 1 / det; + + te[ 0 ] = t11 * detInv; + te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv; + te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv; + te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv; + + te[ 4 ] = t12 * detInv; + te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv; + te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv; + te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv; + + te[ 8 ] = t13 * detInv; + te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv; + te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv; + te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv; + + te[ 12 ] = t14 * detInv; + te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv; + te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv; + te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv; + + return this; + + } + + scale( v ) { + + const te = this.elements; + const x = v.x, y = v.y, z = v.z; + + te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z; + te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z; + te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z; + te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z; + + return this; + + } + + getMaxScaleOnAxis() { + + const te = this.elements; + + const scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ]; + const scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ]; + const scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ]; + + return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) ); + + } + + makeTranslation( x, y, z ) { + + this.set( + + 1, 0, 0, x, + 0, 1, 0, y, + 0, 0, 1, z, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeRotationX( theta ) { + + const c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + 1, 0, 0, 0, + 0, c, - s, 0, + 0, s, c, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeRotationY( theta ) { + + const c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + c, 0, s, 0, + 0, 1, 0, 0, + - s, 0, c, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeRotationZ( theta ) { + + const c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + c, - s, 0, 0, + s, c, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeRotationAxis( axis, angle ) { + + // Based on http://www.gamedev.net/reference/articles/article1199.asp + + const c = Math.cos( angle ); + const s = Math.sin( angle ); + const t = 1 - c; + const x = axis.x, y = axis.y, z = axis.z; + const tx = t * x, ty = t * y; + + this.set( + + tx * x + c, tx * y - s * z, tx * z + s * y, 0, + tx * y + s * z, ty * y + c, ty * z - s * x, 0, + tx * z - s * y, ty * z + s * x, t * z * z + c, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeScale( x, y, z ) { + + this.set( + + x, 0, 0, 0, + 0, y, 0, 0, + 0, 0, z, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + makeShear( x, y, z ) { + + this.set( + + 1, y, z, 0, + x, 1, z, 0, + x, y, 1, 0, + 0, 0, 0, 1 + + ); + + return this; + + } + + compose( position, quaternion, scale ) { + + const te = this.elements; + + const x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w; + const x2 = x + x, y2 = y + y, z2 = z + z; + const xx = x * x2, xy = x * y2, xz = x * z2; + const yy = y * y2, yz = y * z2, zz = z * z2; + const wx = w * x2, wy = w * y2, wz = w * z2; + + const sx = scale.x, sy = scale.y, sz = scale.z; + + te[ 0 ] = ( 1 - ( yy + zz ) ) * sx; + te[ 1 ] = ( xy + wz ) * sx; + te[ 2 ] = ( xz - wy ) * sx; + te[ 3 ] = 0; + + te[ 4 ] = ( xy - wz ) * sy; + te[ 5 ] = ( 1 - ( xx + zz ) ) * sy; + te[ 6 ] = ( yz + wx ) * sy; + te[ 7 ] = 0; + + te[ 8 ] = ( xz + wy ) * sz; + te[ 9 ] = ( yz - wx ) * sz; + te[ 10 ] = ( 1 - ( xx + yy ) ) * sz; + te[ 11 ] = 0; + + te[ 12 ] = position.x; + te[ 13 ] = position.y; + te[ 14 ] = position.z; + te[ 15 ] = 1; + + return this; + + } + + decompose( position, quaternion, scale ) { + + const te = this.elements; + + let sx = _v1$1.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length(); + const sy = _v1$1.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length(); + const sz = _v1$1.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length(); + + // if determine is negative, we need to invert one scale + const det = this.determinant(); + if ( det < 0 ) sx = - sx; + + position.x = te[ 12 ]; + position.y = te[ 13 ]; + position.z = te[ 14 ]; + + // scale the rotation part + _m1.copy( this ); + + const invSX = 1 / sx; + const invSY = 1 / sy; + const invSZ = 1 / sz; + + _m1.elements[ 0 ] *= invSX; + _m1.elements[ 1 ] *= invSX; + _m1.elements[ 2 ] *= invSX; + + _m1.elements[ 4 ] *= invSY; + _m1.elements[ 5 ] *= invSY; + _m1.elements[ 6 ] *= invSY; + + _m1.elements[ 8 ] *= invSZ; + _m1.elements[ 9 ] *= invSZ; + _m1.elements[ 10 ] *= invSZ; + + quaternion.setFromRotationMatrix( _m1 ); + + scale.x = sx; + scale.y = sy; + scale.z = sz; + + return this; + + } + + makePerspective( left, right, top, bottom, near, far ) { + + if ( far === undefined ) { + + console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' ); + + } + + const te = this.elements; + const x = 2 * near / ( right - left ); + const y = 2 * near / ( top - bottom ); + + const a = ( right + left ) / ( right - left ); + const b = ( top + bottom ) / ( top - bottom ); + const c = - ( far + near ) / ( far - near ); + const d = - 2 * far * near / ( far - near ); + + te[ 0 ] = x; te[ 4 ] = 0; te[ 8 ] = a; te[ 12 ] = 0; + te[ 1 ] = 0; te[ 5 ] = y; te[ 9 ] = b; te[ 13 ] = 0; + te[ 2 ] = 0; te[ 6 ] = 0; te[ 10 ] = c; te[ 14 ] = d; + te[ 3 ] = 0; te[ 7 ] = 0; te[ 11 ] = - 1; te[ 15 ] = 0; + + return this; + + } + + makeOrthographic( left, right, top, bottom, near, far ) { + + const te = this.elements; + const w = 1.0 / ( right - left ); + const h = 1.0 / ( top - bottom ); + const p = 1.0 / ( far - near ); + + const x = ( right + left ) * w; + const y = ( top + bottom ) * h; + const z = ( far + near ) * p; + + te[ 0 ] = 2 * w; te[ 4 ] = 0; te[ 8 ] = 0; te[ 12 ] = - x; + te[ 1 ] = 0; te[ 5 ] = 2 * h; te[ 9 ] = 0; te[ 13 ] = - y; + te[ 2 ] = 0; te[ 6 ] = 0; te[ 10 ] = - 2 * p; te[ 14 ] = - z; + te[ 3 ] = 0; te[ 7 ] = 0; te[ 11 ] = 0; te[ 15 ] = 1; + + return this; + + } + + equals( matrix ) { + + const te = this.elements; + const me = matrix.elements; + + for ( let i = 0; i < 16; i ++ ) { + + if ( te[ i ] !== me[ i ] ) return false; + + } + + return true; + + } + + fromArray( array, offset = 0 ) { + + for ( let i = 0; i < 16; i ++ ) { + + this.elements[ i ] = array[ i + offset ]; + + } + + return this; + + } + + toArray( array = [], offset = 0 ) { + + const te = this.elements; + + array[ offset ] = te[ 0 ]; + array[ offset + 1 ] = te[ 1 ]; + array[ offset + 2 ] = te[ 2 ]; + array[ offset + 3 ] = te[ 3 ]; + + array[ offset + 4 ] = te[ 4 ]; + array[ offset + 5 ] = te[ 5 ]; + array[ offset + 6 ] = te[ 6 ]; + array[ offset + 7 ] = te[ 7 ]; + + array[ offset + 8 ] = te[ 8 ]; + array[ offset + 9 ] = te[ 9 ]; + array[ offset + 10 ] = te[ 10 ]; + array[ offset + 11 ] = te[ 11 ]; + + array[ offset + 12 ] = te[ 12 ]; + array[ offset + 13 ] = te[ 13 ]; + array[ offset + 14 ] = te[ 14 ]; + array[ offset + 15 ] = te[ 15 ]; + + return array; + + } + +} + +const _v1$1 = /*@__PURE__*/ new Vector3(); +const _m1 = /*@__PURE__*/ new Matrix4(); +const _zero = /*@__PURE__*/ new Vector3( 0, 0, 0 ); +const _one = /*@__PURE__*/ new Vector3( 1, 1, 1 ); +const _x = /*@__PURE__*/ new Vector3(); +const _y = /*@__PURE__*/ new Vector3(); +const _z = /*@__PURE__*/ new Vector3(); + +class Euler { + + constructor( x = 0, y = 0, z = 0, order = Euler.DefaultOrder ) { + + Object.defineProperty( this, 'isEuler', { value: true } ); + + this._x = x; + this._y = y; + this._z = z; + this._order = order; + + } + + get x() { + + return this._x; + + } + + set x( value ) { + + this._x = value; + this._onChangeCallback(); + + } + + get y() { + + return this._y; + + } + + set y( value ) { + + this._y = value; + this._onChangeCallback(); + + } + + get z() { + + return this._z; + + } + + set z( value ) { + + this._z = value; + this._onChangeCallback(); + + } + + get order() { + + return this._order; + + } + + set order( value ) { + + this._order = value; + this._onChangeCallback(); + + } + + set( x, y, z, order ) { + + this._x = x; + this._y = y; + this._z = z; + this._order = order || this._order; + + this._onChangeCallback(); + + return this; + + } + + clone() { + + return new this.constructor( this._x, this._y, this._z, this._order ); + + } + + copy( euler ) { + + this._x = euler._x; + this._y = euler._y; + this._z = euler._z; + this._order = euler._order; + + this._onChangeCallback(); + + return this; + + } + + setFromRotationMatrix( m, order, update ) { + + const clamp = MathUtils.clamp; + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + const te = m.elements; + const m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ]; + const m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ]; + const m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ]; + + order = order || this._order; + + switch ( order ) { + + case 'XYZ': + + this._y = Math.asin( clamp( m13, - 1, 1 ) ); + + if ( Math.abs( m13 ) < 0.9999999 ) { + + this._x = Math.atan2( - m23, m33 ); + this._z = Math.atan2( - m12, m11 ); + + } else { + + this._x = Math.atan2( m32, m22 ); + this._z = 0; + + } + + break; + + case 'YXZ': + + this._x = Math.asin( - clamp( m23, - 1, 1 ) ); + + if ( Math.abs( m23 ) < 0.9999999 ) { + + this._y = Math.atan2( m13, m33 ); + this._z = Math.atan2( m21, m22 ); + + } else { + + this._y = Math.atan2( - m31, m11 ); + this._z = 0; + + } + + break; + + case 'ZXY': + + this._x = Math.asin( clamp( m32, - 1, 1 ) ); + + if ( Math.abs( m32 ) < 0.9999999 ) { + + this._y = Math.atan2( - m31, m33 ); + this._z = Math.atan2( - m12, m22 ); + + } else { + + this._y = 0; + this._z = Math.atan2( m21, m11 ); + + } + + break; + + case 'ZYX': + + this._y = Math.asin( - clamp( m31, - 1, 1 ) ); + + if ( Math.abs( m31 ) < 0.9999999 ) { + + this._x = Math.atan2( m32, m33 ); + this._z = Math.atan2( m21, m11 ); + + } else { + + this._x = 0; + this._z = Math.atan2( - m12, m22 ); + + } + + break; + + case 'YZX': + + this._z = Math.asin( clamp( m21, - 1, 1 ) ); + + if ( Math.abs( m21 ) < 0.9999999 ) { + + this._x = Math.atan2( - m23, m22 ); + this._y = Math.atan2( - m31, m11 ); + + } else { + + this._x = 0; + this._y = Math.atan2( m13, m33 ); + + } + + break; + + case 'XZY': + + this._z = Math.asin( - clamp( m12, - 1, 1 ) ); + + if ( Math.abs( m12 ) < 0.9999999 ) { + + this._x = Math.atan2( m32, m22 ); + this._y = Math.atan2( m13, m11 ); + + } else { + + this._x = Math.atan2( - m23, m33 ); + this._y = 0; + + } + + break; + + default: + + console.warn( 'THREE.Euler: .setFromRotationMatrix() encountered an unknown order: ' + order ); + + } + + this._order = order; + + if ( update !== false ) this._onChangeCallback(); + + return this; + + } + + setFromQuaternion( q, order, update ) { + + _matrix.makeRotationFromQuaternion( q ); + + return this.setFromRotationMatrix( _matrix, order, update ); + + } + + setFromVector3( v, order ) { + + return this.set( v.x, v.y, v.z, order || this._order ); + + } + + reorder( newOrder ) { + + // WARNING: this discards revolution information -bhouston + + _quaternion$1.setFromEuler( this ); + + return this.setFromQuaternion( _quaternion$1, newOrder ); + + } + + equals( euler ) { + + return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order ); + + } + + fromArray( array ) { + + this._x = array[ 0 ]; + this._y = array[ 1 ]; + this._z = array[ 2 ]; + if ( array[ 3 ] !== undefined ) this._order = array[ 3 ]; + + this._onChangeCallback(); + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this._x; + array[ offset + 1 ] = this._y; + array[ offset + 2 ] = this._z; + array[ offset + 3 ] = this._order; + + return array; + + } + + toVector3( optionalResult ) { + + if ( optionalResult ) { + + return optionalResult.set( this._x, this._y, this._z ); + + } else { + + return new Vector3( this._x, this._y, this._z ); + + } + + } + + _onChange( callback ) { + + this._onChangeCallback = callback; + + return this; + + } + + _onChangeCallback() {} + +} + +Euler.DefaultOrder = 'XYZ'; +Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ]; + +const _matrix = /*@__PURE__*/ new Matrix4(); +const _quaternion$1 = /*@__PURE__*/ new Quaternion(); + +class Layers { + + constructor() { + + this.mask = 1 | 0; + + } + + set( channel ) { + + this.mask = 1 << channel | 0; + + } + + enable( channel ) { + + this.mask |= 1 << channel | 0; + + } + + enableAll() { + + this.mask = 0xffffffff | 0; + + } + + toggle( channel ) { + + this.mask ^= 1 << channel | 0; + + } + + disable( channel ) { + + this.mask &= ~ ( 1 << channel | 0 ); + + } + + disableAll() { + + this.mask = 0; + + } + + test( layers ) { + + return ( this.mask & layers.mask ) !== 0; + + } + +} + +let _object3DId = 0; + +const _v1$2 = new Vector3(); +const _q1 = new Quaternion(); +const _m1$1 = new Matrix4(); +const _target = new Vector3(); + +const _position = new Vector3(); +const _scale = new Vector3(); +const _quaternion$2 = new Quaternion(); + +const _xAxis = new Vector3( 1, 0, 0 ); +const _yAxis = new Vector3( 0, 1, 0 ); +const _zAxis = new Vector3( 0, 0, 1 ); + +const _addedEvent = { type: 'added' }; +const _removedEvent = { type: 'removed' }; + +function Object3D() { + + Object.defineProperty( this, 'id', { value: _object3DId ++ } ); + + this.uuid = MathUtils.generateUUID(); + + this.name = ''; + this.type = 'Object3D'; + + this.parent = null; + this.children = []; + + this.up = Object3D.DefaultUp.clone(); + + const position = new Vector3(); + const rotation = new Euler(); + const quaternion = new Quaternion(); + const scale = new Vector3( 1, 1, 1 ); + + function onRotationChange() { + + quaternion.setFromEuler( rotation, false ); + + } + + function onQuaternionChange() { + + rotation.setFromQuaternion( quaternion, undefined, false ); + + } + + rotation._onChange( onRotationChange ); + quaternion._onChange( onQuaternionChange ); + + Object.defineProperties( this, { + position: { + configurable: true, + enumerable: true, + value: position + }, + rotation: { + configurable: true, + enumerable: true, + value: rotation + }, + quaternion: { + configurable: true, + enumerable: true, + value: quaternion + }, + scale: { + configurable: true, + enumerable: true, + value: scale + }, + modelViewMatrix: { + value: new Matrix4() + }, + normalMatrix: { + value: new Matrix3() + } + } ); + + this.matrix = new Matrix4(); + this.matrixWorld = new Matrix4(); + + this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate; + this.matrixWorldNeedsUpdate = false; + + this.layers = new Layers(); + this.visible = true; + + this.castShadow = false; + this.receiveShadow = false; + + this.frustumCulled = true; + this.renderOrder = 0; + + this.animations = []; + + this.userData = {}; + +} + +Object3D.DefaultUp = new Vector3( 0, 1, 0 ); +Object3D.DefaultMatrixAutoUpdate = true; + +Object3D.prototype = Object.assign( Object.create( EventDispatcher.prototype ), { + + constructor: Object3D, + + isObject3D: true, + + onBeforeRender: function () {}, + onAfterRender: function () {}, + + applyMatrix4: function ( matrix ) { + + if ( this.matrixAutoUpdate ) this.updateMatrix(); + + this.matrix.premultiply( matrix ); + + this.matrix.decompose( this.position, this.quaternion, this.scale ); + + }, + + applyQuaternion: function ( q ) { + + this.quaternion.premultiply( q ); + + return this; + + }, + + setRotationFromAxisAngle: function ( axis, angle ) { + + // assumes axis is normalized + + this.quaternion.setFromAxisAngle( axis, angle ); + + }, + + setRotationFromEuler: function ( euler ) { + + this.quaternion.setFromEuler( euler, true ); + + }, + + setRotationFromMatrix: function ( m ) { + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + this.quaternion.setFromRotationMatrix( m ); + + }, + + setRotationFromQuaternion: function ( q ) { + + // assumes q is normalized + + this.quaternion.copy( q ); + + }, + + rotateOnAxis: function ( axis, angle ) { + + // rotate object on axis in object space + // axis is assumed to be normalized + + _q1.setFromAxisAngle( axis, angle ); + + this.quaternion.multiply( _q1 ); + + return this; + + }, + + rotateOnWorldAxis: function ( axis, angle ) { + + // rotate object on axis in world space + // axis is assumed to be normalized + // method assumes no rotated parent + + _q1.setFromAxisAngle( axis, angle ); + + this.quaternion.premultiply( _q1 ); + + return this; + + }, + + rotateX: function ( angle ) { + + return this.rotateOnAxis( _xAxis, angle ); + + }, + + rotateY: function ( angle ) { + + return this.rotateOnAxis( _yAxis, angle ); + + }, + + rotateZ: function ( angle ) { + + return this.rotateOnAxis( _zAxis, angle ); + + }, + + translateOnAxis: function ( axis, distance ) { + + // translate object by distance along axis in object space + // axis is assumed to be normalized + + _v1$2.copy( axis ).applyQuaternion( this.quaternion ); + + this.position.add( _v1$2.multiplyScalar( distance ) ); + + return this; + + }, + + translateX: function ( distance ) { + + return this.translateOnAxis( _xAxis, distance ); + + }, + + translateY: function ( distance ) { + + return this.translateOnAxis( _yAxis, distance ); + + }, + + translateZ: function ( distance ) { + + return this.translateOnAxis( _zAxis, distance ); + + }, + + localToWorld: function ( vector ) { + + return vector.applyMatrix4( this.matrixWorld ); + + }, + + worldToLocal: function ( vector ) { + + return vector.applyMatrix4( _m1$1.copy( this.matrixWorld ).invert() ); + + }, + + lookAt: function ( x, y, z ) { + + // This method does not support objects having non-uniformly-scaled parent(s) + + if ( x.isVector3 ) { + + _target.copy( x ); + + } else { + + _target.set( x, y, z ); + + } + + const parent = this.parent; + + this.updateWorldMatrix( true, false ); + + _position.setFromMatrixPosition( this.matrixWorld ); + + if ( this.isCamera || this.isLight ) { + + _m1$1.lookAt( _position, _target, this.up ); + + } else { + + _m1$1.lookAt( _target, _position, this.up ); + + } + + this.quaternion.setFromRotationMatrix( _m1$1 ); + + if ( parent ) { + + _m1$1.extractRotation( parent.matrixWorld ); + _q1.setFromRotationMatrix( _m1$1 ); + this.quaternion.premultiply( _q1.invert() ); + + } + + }, + + add: function ( object ) { + + if ( arguments.length > 1 ) { + + for ( let i = 0; i < arguments.length; i ++ ) { + + this.add( arguments[ i ] ); + + } + + return this; + + } + + if ( object === this ) { + + console.error( 'THREE.Object3D.add: object can\'t be added as a child of itself.', object ); + return this; + + } + + if ( object && object.isObject3D ) { + + if ( object.parent !== null ) { + + object.parent.remove( object ); + + } + + object.parent = this; + this.children.push( object ); + + object.dispatchEvent( _addedEvent ); + + } else { + + console.error( 'THREE.Object3D.add: object not an instance of THREE.Object3D.', object ); + + } + + return this; + + }, + + remove: function ( object ) { + + if ( arguments.length > 1 ) { + + for ( let i = 0; i < arguments.length; i ++ ) { + + this.remove( arguments[ i ] ); + + } + + return this; + + } + + const index = this.children.indexOf( object ); + + if ( index !== - 1 ) { + + object.parent = null; + this.children.splice( index, 1 ); + + object.dispatchEvent( _removedEvent ); + + } + + return this; + + }, + + clear: function () { + + for ( let i = 0; i < this.children.length; i ++ ) { + + const object = this.children[ i ]; + + object.parent = null; + + object.dispatchEvent( _removedEvent ); + + } + + this.children.length = 0; + + return this; + + + }, + + attach: function ( object ) { + + // adds object as a child of this, while maintaining the object's world transform + + this.updateWorldMatrix( true, false ); + + _m1$1.copy( this.matrixWorld ).invert(); + + if ( object.parent !== null ) { + + object.parent.updateWorldMatrix( true, false ); + + _m1$1.multiply( object.parent.matrixWorld ); + + } + + object.applyMatrix4( _m1$1 ); + + object.updateWorldMatrix( false, false ); + + this.add( object ); + + return this; + + }, + + getObjectById: function ( id ) { + + return this.getObjectByProperty( 'id', id ); + + }, + + getObjectByName: function ( name ) { + + return this.getObjectByProperty( 'name', name ); + + }, + + getObjectByProperty: function ( name, value ) { + + if ( this[ name ] === value ) return this; + + for ( let i = 0, l = this.children.length; i < l; i ++ ) { + + const child = this.children[ i ]; + const object = child.getObjectByProperty( name, value ); + + if ( object !== undefined ) { + + return object; + + } + + } + + return undefined; + + }, + + getWorldPosition: function ( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Object3D: .getWorldPosition() target is now required' ); + target = new Vector3(); + + } + + this.updateWorldMatrix( true, false ); + + return target.setFromMatrixPosition( this.matrixWorld ); + + }, + + getWorldQuaternion: function ( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Object3D: .getWorldQuaternion() target is now required' ); + target = new Quaternion(); + + } + + this.updateWorldMatrix( true, false ); + + this.matrixWorld.decompose( _position, target, _scale ); + + return target; + + }, + + getWorldScale: function ( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Object3D: .getWorldScale() target is now required' ); + target = new Vector3(); + + } + + this.updateWorldMatrix( true, false ); + + this.matrixWorld.decompose( _position, _quaternion$2, target ); + + return target; + + }, + + getWorldDirection: function ( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Object3D: .getWorldDirection() target is now required' ); + target = new Vector3(); + + } + + this.updateWorldMatrix( true, false ); + + const e = this.matrixWorld.elements; + + return target.set( e[ 8 ], e[ 9 ], e[ 10 ] ).normalize(); + + }, + + raycast: function () {}, + + traverse: function ( callback ) { + + callback( this ); + + const children = this.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].traverse( callback ); + + } + + }, + + traverseVisible: function ( callback ) { + + if ( this.visible === false ) return; + + callback( this ); + + const children = this.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].traverseVisible( callback ); + + } + + }, + + traverseAncestors: function ( callback ) { + + const parent = this.parent; + + if ( parent !== null ) { + + callback( parent ); + + parent.traverseAncestors( callback ); + + } + + }, + + updateMatrix: function () { + + this.matrix.compose( this.position, this.quaternion, this.scale ); + + this.matrixWorldNeedsUpdate = true; + + }, + + updateMatrixWorld: function ( force ) { + + if ( this.matrixAutoUpdate ) this.updateMatrix(); + + if ( this.matrixWorldNeedsUpdate || force ) { + + if ( this.parent === null ) { + + this.matrixWorld.copy( this.matrix ); + + } else { + + this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix ); + + } + + this.matrixWorldNeedsUpdate = false; + + force = true; + + } + + // update children + + const children = this.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].updateMatrixWorld( force ); + + } + + }, + + updateWorldMatrix: function ( updateParents, updateChildren ) { + + const parent = this.parent; + + if ( updateParents === true && parent !== null ) { + + parent.updateWorldMatrix( true, false ); + + } + + if ( this.matrixAutoUpdate ) this.updateMatrix(); + + if ( this.parent === null ) { + + this.matrixWorld.copy( this.matrix ); + + } else { + + this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix ); + + } + + // update children + + if ( updateChildren === true ) { + + const children = this.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].updateWorldMatrix( false, true ); + + } + + } + + }, + + toJSON: function ( meta ) { + + // meta is a string when called from JSON.stringify + const isRootObject = ( meta === undefined || typeof meta === 'string' ); + + const output = {}; + + // meta is a hash used to collect geometries, materials. + // not providing it implies that this is the root object + // being serialized. + if ( isRootObject ) { + + // initialize meta obj + meta = { + geometries: {}, + materials: {}, + textures: {}, + images: {}, + shapes: {}, + skeletons: {}, + animations: {} + }; + + output.metadata = { + version: 4.5, + type: 'Object', + generator: 'Object3D.toJSON' + }; + + } + + // standard Object3D serialization + + const object = {}; + + object.uuid = this.uuid; + object.type = this.type; + + if ( this.name !== '' ) object.name = this.name; + if ( this.castShadow === true ) object.castShadow = true; + if ( this.receiveShadow === true ) object.receiveShadow = true; + if ( this.visible === false ) object.visible = false; + if ( this.frustumCulled === false ) object.frustumCulled = false; + if ( this.renderOrder !== 0 ) object.renderOrder = this.renderOrder; + if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData; + + object.layers = this.layers.mask; + object.matrix = this.matrix.toArray(); + + if ( this.matrixAutoUpdate === false ) object.matrixAutoUpdate = false; + + // object specific properties + + if ( this.isInstancedMesh ) { + + object.type = 'InstancedMesh'; + object.count = this.count; + object.instanceMatrix = this.instanceMatrix.toJSON(); + + } + + // + + function serialize( library, element ) { + + if ( library[ element.uuid ] === undefined ) { + + library[ element.uuid ] = element.toJSON( meta ); + + } + + return element.uuid; + + } + + if ( this.isMesh || this.isLine || this.isPoints ) { + + object.geometry = serialize( meta.geometries, this.geometry ); + + const parameters = this.geometry.parameters; + + if ( parameters !== undefined && parameters.shapes !== undefined ) { + + const shapes = parameters.shapes; + + if ( Array.isArray( shapes ) ) { + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + + serialize( meta.shapes, shape ); + + } + + } else { + + serialize( meta.shapes, shapes ); + + } + + } + + } + + if ( this.isSkinnedMesh ) { + + object.bindMode = this.bindMode; + object.bindMatrix = this.bindMatrix.toArray(); + + if ( this.skeleton !== undefined ) { + + serialize( meta.skeletons, this.skeleton ); + + object.skeleton = this.skeleton.uuid; + + } + + } + + if ( this.material !== undefined ) { + + if ( Array.isArray( this.material ) ) { + + const uuids = []; + + for ( let i = 0, l = this.material.length; i < l; i ++ ) { + + uuids.push( serialize( meta.materials, this.material[ i ] ) ); + + } + + object.material = uuids; + + } else { + + object.material = serialize( meta.materials, this.material ); + + } + + } + + // + + if ( this.children.length > 0 ) { + + object.children = []; + + for ( let i = 0; i < this.children.length; i ++ ) { + + object.children.push( this.children[ i ].toJSON( meta ).object ); + + } + + } + + // + + if ( this.animations.length > 0 ) { + + object.animations = []; + + for ( let i = 0; i < this.animations.length; i ++ ) { + + const animation = this.animations[ i ]; + + object.animations.push( serialize( meta.animations, animation ) ); + + } + + } + + if ( isRootObject ) { + + const geometries = extractFromCache( meta.geometries ); + const materials = extractFromCache( meta.materials ); + const textures = extractFromCache( meta.textures ); + const images = extractFromCache( meta.images ); + const shapes = extractFromCache( meta.shapes ); + const skeletons = extractFromCache( meta.skeletons ); + const animations = extractFromCache( meta.animations ); + + if ( geometries.length > 0 ) output.geometries = geometries; + if ( materials.length > 0 ) output.materials = materials; + if ( textures.length > 0 ) output.textures = textures; + if ( images.length > 0 ) output.images = images; + if ( shapes.length > 0 ) output.shapes = shapes; + if ( skeletons.length > 0 ) output.skeletons = skeletons; + if ( animations.length > 0 ) output.animations = animations; + + } + + output.object = object; + + return output; + + // extract data from the cache hash + // remove metadata on each item + // and return as array + function extractFromCache( cache ) { + + const values = []; + for ( const key in cache ) { + + const data = cache[ key ]; + delete data.metadata; + values.push( data ); + + } + + return values; + + } + + }, + + clone: function ( recursive ) { + + return new this.constructor().copy( this, recursive ); + + }, + + copy: function ( source, recursive = true ) { + + this.name = source.name; + + this.up.copy( source.up ); + + this.position.copy( source.position ); + this.rotation.order = source.rotation.order; + this.quaternion.copy( source.quaternion ); + this.scale.copy( source.scale ); + + this.matrix.copy( source.matrix ); + this.matrixWorld.copy( source.matrixWorld ); + + this.matrixAutoUpdate = source.matrixAutoUpdate; + this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate; + + this.layers.mask = source.layers.mask; + this.visible = source.visible; + + this.castShadow = source.castShadow; + this.receiveShadow = source.receiveShadow; + + this.frustumCulled = source.frustumCulled; + this.renderOrder = source.renderOrder; + + this.userData = JSON.parse( JSON.stringify( source.userData ) ); + + if ( recursive === true ) { + + for ( let i = 0; i < source.children.length; i ++ ) { + + const child = source.children[ i ]; + this.add( child.clone() ); + + } + + } + + return this; + + } + +} ); + +const _vector1 = /*@__PURE__*/ new Vector3(); +const _vector2 = /*@__PURE__*/ new Vector3(); +const _normalMatrix = /*@__PURE__*/ new Matrix3(); + +class Plane { + + constructor( normal, constant ) { + + Object.defineProperty( this, 'isPlane', { value: true } ); + + // normal is assumed to be normalized + + this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 ); + this.constant = ( constant !== undefined ) ? constant : 0; + + } + + set( normal, constant ) { + + this.normal.copy( normal ); + this.constant = constant; + + return this; + + } + + setComponents( x, y, z, w ) { + + this.normal.set( x, y, z ); + this.constant = w; + + return this; + + } + + setFromNormalAndCoplanarPoint( normal, point ) { + + this.normal.copy( normal ); + this.constant = - point.dot( this.normal ); + + return this; + + } + + setFromCoplanarPoints( a, b, c ) { + + const normal = _vector1.subVectors( c, b ).cross( _vector2.subVectors( a, b ) ).normalize(); + + // Q: should an error be thrown if normal is zero (e.g. degenerate plane)? + + this.setFromNormalAndCoplanarPoint( normal, a ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( plane ) { + + this.normal.copy( plane.normal ); + this.constant = plane.constant; + + return this; + + } + + normalize() { + + // Note: will lead to a divide by zero if the plane is invalid. + + const inverseNormalLength = 1.0 / this.normal.length(); + this.normal.multiplyScalar( inverseNormalLength ); + this.constant *= inverseNormalLength; + + return this; + + } + + negate() { + + this.constant *= - 1; + this.normal.negate(); + + return this; + + } + + distanceToPoint( point ) { + + return this.normal.dot( point ) + this.constant; + + } + + distanceToSphere( sphere ) { + + return this.distanceToPoint( sphere.center ) - sphere.radius; + + } + + projectPoint( point, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Plane: .projectPoint() target is now required' ); + target = new Vector3(); + + } + + return target.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point ); + + } + + intersectLine( line, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Plane: .intersectLine() target is now required' ); + target = new Vector3(); + + } + + const direction = line.delta( _vector1 ); + + const denominator = this.normal.dot( direction ); + + if ( denominator === 0 ) { + + // line is coplanar, return origin + if ( this.distanceToPoint( line.start ) === 0 ) { + + return target.copy( line.start ); + + } + + // Unsure if this is the correct method to handle this case. + return undefined; + + } + + const t = - ( line.start.dot( this.normal ) + this.constant ) / denominator; + + if ( t < 0 || t > 1 ) { + + return undefined; + + } + + return target.copy( direction ).multiplyScalar( t ).add( line.start ); + + } + + intersectsLine( line ) { + + // Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it. + + const startSign = this.distanceToPoint( line.start ); + const endSign = this.distanceToPoint( line.end ); + + return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 ); + + } + + intersectsBox( box ) { + + return box.intersectsPlane( this ); + + } + + intersectsSphere( sphere ) { + + return sphere.intersectsPlane( this ); + + } + + coplanarPoint( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Plane: .coplanarPoint() target is now required' ); + target = new Vector3(); + + } + + return target.copy( this.normal ).multiplyScalar( - this.constant ); + + } + + applyMatrix4( matrix, optionalNormalMatrix ) { + + const normalMatrix = optionalNormalMatrix || _normalMatrix.getNormalMatrix( matrix ); + + const referencePoint = this.coplanarPoint( _vector1 ).applyMatrix4( matrix ); + + const normal = this.normal.applyMatrix3( normalMatrix ).normalize(); + + this.constant = - referencePoint.dot( normal ); + + return this; + + } + + translate( offset ) { + + this.constant -= offset.dot( this.normal ); + + return this; + + } + + equals( plane ) { + + return plane.normal.equals( this.normal ) && ( plane.constant === this.constant ); + + } + +} + +const _v0$1 = /*@__PURE__*/ new Vector3(); +const _v1$3 = /*@__PURE__*/ new Vector3(); +const _v2$1 = /*@__PURE__*/ new Vector3(); +const _v3 = /*@__PURE__*/ new Vector3(); + +const _vab = /*@__PURE__*/ new Vector3(); +const _vac = /*@__PURE__*/ new Vector3(); +const _vbc = /*@__PURE__*/ new Vector3(); +const _vap = /*@__PURE__*/ new Vector3(); +const _vbp = /*@__PURE__*/ new Vector3(); +const _vcp = /*@__PURE__*/ new Vector3(); + +class Triangle { + + constructor( a, b, c ) { + + this.a = ( a !== undefined ) ? a : new Vector3(); + this.b = ( b !== undefined ) ? b : new Vector3(); + this.c = ( c !== undefined ) ? c : new Vector3(); + + } + + static getNormal( a, b, c, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Triangle: .getNormal() target is now required' ); + target = new Vector3(); + + } + + target.subVectors( c, b ); + _v0$1.subVectors( a, b ); + target.cross( _v0$1 ); + + const targetLengthSq = target.lengthSq(); + if ( targetLengthSq > 0 ) { + + return target.multiplyScalar( 1 / Math.sqrt( targetLengthSq ) ); + + } + + return target.set( 0, 0, 0 ); + + } + + // static/instance method to calculate barycentric coordinates + // based on: http://www.blackpawn.com/texts/pointinpoly/default.html + static getBarycoord( point, a, b, c, target ) { + + _v0$1.subVectors( c, a ); + _v1$3.subVectors( b, a ); + _v2$1.subVectors( point, a ); + + const dot00 = _v0$1.dot( _v0$1 ); + const dot01 = _v0$1.dot( _v1$3 ); + const dot02 = _v0$1.dot( _v2$1 ); + const dot11 = _v1$3.dot( _v1$3 ); + const dot12 = _v1$3.dot( _v2$1 ); + + const denom = ( dot00 * dot11 - dot01 * dot01 ); + + if ( target === undefined ) { + + console.warn( 'THREE.Triangle: .getBarycoord() target is now required' ); + target = new Vector3(); + + } + + // collinear or singular triangle + if ( denom === 0 ) { + + // arbitrary location outside of triangle? + // not sure if this is the best idea, maybe should be returning undefined + return target.set( - 2, - 1, - 1 ); + + } + + const invDenom = 1 / denom; + const u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom; + const v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom; + + // barycentric coordinates must always sum to 1 + return target.set( 1 - u - v, v, u ); + + } + + static containsPoint( point, a, b, c ) { + + this.getBarycoord( point, a, b, c, _v3 ); + + return ( _v3.x >= 0 ) && ( _v3.y >= 0 ) && ( ( _v3.x + _v3.y ) <= 1 ); + + } + + static getUV( point, p1, p2, p3, uv1, uv2, uv3, target ) { + + this.getBarycoord( point, p1, p2, p3, _v3 ); + + target.set( 0, 0 ); + target.addScaledVector( uv1, _v3.x ); + target.addScaledVector( uv2, _v3.y ); + target.addScaledVector( uv3, _v3.z ); + + return target; + + } + + static isFrontFacing( a, b, c, direction ) { + + _v0$1.subVectors( c, b ); + _v1$3.subVectors( a, b ); + + // strictly front facing + return ( _v0$1.cross( _v1$3 ).dot( direction ) < 0 ) ? true : false; + + } + + set( a, b, c ) { + + this.a.copy( a ); + this.b.copy( b ); + this.c.copy( c ); + + return this; + + } + + setFromPointsAndIndices( points, i0, i1, i2 ) { + + this.a.copy( points[ i0 ] ); + this.b.copy( points[ i1 ] ); + this.c.copy( points[ i2 ] ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( triangle ) { + + this.a.copy( triangle.a ); + this.b.copy( triangle.b ); + this.c.copy( triangle.c ); + + return this; + + } + + getArea() { + + _v0$1.subVectors( this.c, this.b ); + _v1$3.subVectors( this.a, this.b ); + + return _v0$1.cross( _v1$3 ).length() * 0.5; + + } + + getMidpoint( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Triangle: .getMidpoint() target is now required' ); + target = new Vector3(); + + } + + return target.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 ); + + } + + getNormal( target ) { + + return Triangle.getNormal( this.a, this.b, this.c, target ); + + } + + getPlane( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Triangle: .getPlane() target is now required' ); + target = new Plane(); + + } + + return target.setFromCoplanarPoints( this.a, this.b, this.c ); + + } + + getBarycoord( point, target ) { + + return Triangle.getBarycoord( point, this.a, this.b, this.c, target ); + + } + + getUV( point, uv1, uv2, uv3, target ) { + + return Triangle.getUV( point, this.a, this.b, this.c, uv1, uv2, uv3, target ); + + } + + containsPoint( point ) { + + return Triangle.containsPoint( point, this.a, this.b, this.c ); + + } + + isFrontFacing( direction ) { + + return Triangle.isFrontFacing( this.a, this.b, this.c, direction ); + + } + + intersectsBox( box ) { + + return box.intersectsTriangle( this ); + + } + + closestPointToPoint( p, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Triangle: .closestPointToPoint() target is now required' ); + target = new Vector3(); + + } + + const a = this.a, b = this.b, c = this.c; + let v, w; + + // algorithm thanks to Real-Time Collision Detection by Christer Ericson, + // published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc., + // under the accompanying license; see chapter 5.1.5 for detailed explanation. + // basically, we're distinguishing which of the voronoi regions of the triangle + // the point lies in with the minimum amount of redundant computation. + + _vab.subVectors( b, a ); + _vac.subVectors( c, a ); + _vap.subVectors( p, a ); + const d1 = _vab.dot( _vap ); + const d2 = _vac.dot( _vap ); + if ( d1 <= 0 && d2 <= 0 ) { + + // vertex region of A; barycentric coords (1, 0, 0) + return target.copy( a ); + + } + + _vbp.subVectors( p, b ); + const d3 = _vab.dot( _vbp ); + const d4 = _vac.dot( _vbp ); + if ( d3 >= 0 && d4 <= d3 ) { + + // vertex region of B; barycentric coords (0, 1, 0) + return target.copy( b ); + + } + + const vc = d1 * d4 - d3 * d2; + if ( vc <= 0 && d1 >= 0 && d3 <= 0 ) { + + v = d1 / ( d1 - d3 ); + // edge region of AB; barycentric coords (1-v, v, 0) + return target.copy( a ).addScaledVector( _vab, v ); + + } + + _vcp.subVectors( p, c ); + const d5 = _vab.dot( _vcp ); + const d6 = _vac.dot( _vcp ); + if ( d6 >= 0 && d5 <= d6 ) { + + // vertex region of C; barycentric coords (0, 0, 1) + return target.copy( c ); + + } + + const vb = d5 * d2 - d1 * d6; + if ( vb <= 0 && d2 >= 0 && d6 <= 0 ) { + + w = d2 / ( d2 - d6 ); + // edge region of AC; barycentric coords (1-w, 0, w) + return target.copy( a ).addScaledVector( _vac, w ); + + } + + const va = d3 * d6 - d5 * d4; + if ( va <= 0 && ( d4 - d3 ) >= 0 && ( d5 - d6 ) >= 0 ) { + + _vbc.subVectors( c, b ); + w = ( d4 - d3 ) / ( ( d4 - d3 ) + ( d5 - d6 ) ); + // edge region of BC; barycentric coords (0, 1-w, w) + return target.copy( b ).addScaledVector( _vbc, w ); // edge region of BC + + } + + // face region + const denom = 1 / ( va + vb + vc ); + // u = va * denom + v = vb * denom; + w = vc * denom; + + return target.copy( a ).addScaledVector( _vab, v ).addScaledVector( _vac, w ); + + } + + equals( triangle ) { + + return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c ); + + } + +} + +const _colorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF, + 'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2, + 'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50, + 'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B, + 'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B, + 'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F, + 'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3, + 'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222, + 'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700, + 'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4, + 'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00, + 'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3, + 'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA, + 'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32, + 'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3, + 'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC, + 'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD, + 'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6, + 'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9, + 'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F, + 'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE, + 'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA, + 'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0, + 'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 }; + +const _hslA = { h: 0, s: 0, l: 0 }; +const _hslB = { h: 0, s: 0, l: 0 }; + +function hue2rgb( p, q, t ) { + + if ( t < 0 ) t += 1; + if ( t > 1 ) t -= 1; + if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t; + if ( t < 1 / 2 ) return q; + if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t ); + return p; + +} + +function SRGBToLinear( c ) { + + return ( c < 0.04045 ) ? c * 0.0773993808 : Math.pow( c * 0.9478672986 + 0.0521327014, 2.4 ); + +} + +function LinearToSRGB( c ) { + + return ( c < 0.0031308 ) ? c * 12.92 : 1.055 * ( Math.pow( c, 0.41666 ) ) - 0.055; + +} + +class Color { + + constructor( r, g, b ) { + + Object.defineProperty( this, 'isColor', { value: true } ); + + if ( g === undefined && b === undefined ) { + + // r is THREE.Color, hex or string + return this.set( r ); + + } + + return this.setRGB( r, g, b ); + + } + + set( value ) { + + if ( value && value.isColor ) { + + this.copy( value ); + + } else if ( typeof value === 'number' ) { + + this.setHex( value ); + + } else if ( typeof value === 'string' ) { + + this.setStyle( value ); + + } + + return this; + + } + + setScalar( scalar ) { + + this.r = scalar; + this.g = scalar; + this.b = scalar; + + return this; + + } + + setHex( hex ) { + + hex = Math.floor( hex ); + + this.r = ( hex >> 16 & 255 ) / 255; + this.g = ( hex >> 8 & 255 ) / 255; + this.b = ( hex & 255 ) / 255; + + return this; + + } + + setRGB( r, g, b ) { + + this.r = r; + this.g = g; + this.b = b; + + return this; + + } + + setHSL( h, s, l ) { + + // h,s,l ranges are in 0.0 - 1.0 + h = MathUtils.euclideanModulo( h, 1 ); + s = MathUtils.clamp( s, 0, 1 ); + l = MathUtils.clamp( l, 0, 1 ); + + if ( s === 0 ) { + + this.r = this.g = this.b = l; + + } else { + + const p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s ); + const q = ( 2 * l ) - p; + + this.r = hue2rgb( q, p, h + 1 / 3 ); + this.g = hue2rgb( q, p, h ); + this.b = hue2rgb( q, p, h - 1 / 3 ); + + } + + return this; + + } + + setStyle( style ) { + + function handleAlpha( string ) { + + if ( string === undefined ) return; + + if ( parseFloat( string ) < 1 ) { + + console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' ); + + } + + } + + + let m; + + if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) { + + // rgb / hsl + + let color; + const name = m[ 1 ]; + const components = m[ 2 ]; + + switch ( name ) { + + case 'rgb': + case 'rgba': + + if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) { + + // rgb(255,0,0) rgba(255,0,0,0.5) + this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255; + this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255; + this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255; + + handleAlpha( color[ 4 ] ); + + return this; + + } + + if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) { + + // rgb(100%,0%,0%) rgba(100%,0%,0%,0.5) + this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100; + this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100; + this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100; + + handleAlpha( color[ 4 ] ); + + return this; + + } + + break; + + case 'hsl': + case 'hsla': + + if ( color = /^(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec( components ) ) { + + // hsl(120,50%,50%) hsla(120,50%,50%,0.5) + const h = parseFloat( color[ 1 ] ) / 360; + const s = parseInt( color[ 2 ], 10 ) / 100; + const l = parseInt( color[ 3 ], 10 ) / 100; + + handleAlpha( color[ 4 ] ); + + return this.setHSL( h, s, l ); + + } + + break; + + } + + } else if ( m = /^\#([A-Fa-f\d]+)$/.exec( style ) ) { + + // hex color + + const hex = m[ 1 ]; + const size = hex.length; + + if ( size === 3 ) { + + // #ff0 + this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255; + this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255; + this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255; + + return this; + + } else if ( size === 6 ) { + + // #ff0000 + this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255; + this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255; + this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255; + + return this; + + } + + } + + if ( style && style.length > 0 ) { + + return this.setColorName( style ); + + } + + return this; + + } + + setColorName( style ) { + + // color keywords + const hex = _colorKeywords[ style ]; + + if ( hex !== undefined ) { + + // red + this.setHex( hex ); + + } else { + + // unknown color + console.warn( 'THREE.Color: Unknown color ' + style ); + + } + + return this; + + } + + clone() { + + return new this.constructor( this.r, this.g, this.b ); + + } + + copy( color ) { + + this.r = color.r; + this.g = color.g; + this.b = color.b; + + return this; + + } + + copyGammaToLinear( color, gammaFactor = 2.0 ) { + + this.r = Math.pow( color.r, gammaFactor ); + this.g = Math.pow( color.g, gammaFactor ); + this.b = Math.pow( color.b, gammaFactor ); + + return this; + + } + + copyLinearToGamma( color, gammaFactor = 2.0 ) { + + const safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0; + + this.r = Math.pow( color.r, safeInverse ); + this.g = Math.pow( color.g, safeInverse ); + this.b = Math.pow( color.b, safeInverse ); + + return this; + + } + + convertGammaToLinear( gammaFactor ) { + + this.copyGammaToLinear( this, gammaFactor ); + + return this; + + } + + convertLinearToGamma( gammaFactor ) { + + this.copyLinearToGamma( this, gammaFactor ); + + return this; + + } + + copySRGBToLinear( color ) { + + this.r = SRGBToLinear( color.r ); + this.g = SRGBToLinear( color.g ); + this.b = SRGBToLinear( color.b ); + + return this; + + } + + copyLinearToSRGB( color ) { + + this.r = LinearToSRGB( color.r ); + this.g = LinearToSRGB( color.g ); + this.b = LinearToSRGB( color.b ); + + return this; + + } + + convertSRGBToLinear() { + + this.copySRGBToLinear( this ); + + return this; + + } + + convertLinearToSRGB() { + + this.copyLinearToSRGB( this ); + + return this; + + } + + getHex() { + + return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0; + + } + + getHexString() { + + return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 ); + + } + + getHSL( target ) { + + // h,s,l ranges are in 0.0 - 1.0 + + if ( target === undefined ) { + + console.warn( 'THREE.Color: .getHSL() target is now required' ); + target = { h: 0, s: 0, l: 0 }; + + } + + const r = this.r, g = this.g, b = this.b; + + const max = Math.max( r, g, b ); + const min = Math.min( r, g, b ); + + let hue, saturation; + const lightness = ( min + max ) / 2.0; + + if ( min === max ) { + + hue = 0; + saturation = 0; + + } else { + + const delta = max - min; + + saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min ); + + switch ( max ) { + + case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break; + case g: hue = ( b - r ) / delta + 2; break; + case b: hue = ( r - g ) / delta + 4; break; + + } + + hue /= 6; + + } + + target.h = hue; + target.s = saturation; + target.l = lightness; + + return target; + + } + + getStyle() { + + return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')'; + + } + + offsetHSL( h, s, l ) { + + this.getHSL( _hslA ); + + _hslA.h += h; _hslA.s += s; _hslA.l += l; + + this.setHSL( _hslA.h, _hslA.s, _hslA.l ); + + return this; + + } + + add( color ) { + + this.r += color.r; + this.g += color.g; + this.b += color.b; + + return this; + + } + + addColors( color1, color2 ) { + + this.r = color1.r + color2.r; + this.g = color1.g + color2.g; + this.b = color1.b + color2.b; + + return this; + + } + + addScalar( s ) { + + this.r += s; + this.g += s; + this.b += s; + + return this; + + } + + sub( color ) { + + this.r = Math.max( 0, this.r - color.r ); + this.g = Math.max( 0, this.g - color.g ); + this.b = Math.max( 0, this.b - color.b ); + + return this; + + } + + multiply( color ) { + + this.r *= color.r; + this.g *= color.g; + this.b *= color.b; + + return this; + + } + + multiplyScalar( s ) { + + this.r *= s; + this.g *= s; + this.b *= s; + + return this; + + } + + lerp( color, alpha ) { + + this.r += ( color.r - this.r ) * alpha; + this.g += ( color.g - this.g ) * alpha; + this.b += ( color.b - this.b ) * alpha; + + return this; + + } + + lerpHSL( color, alpha ) { + + this.getHSL( _hslA ); + color.getHSL( _hslB ); + + const h = MathUtils.lerp( _hslA.h, _hslB.h, alpha ); + const s = MathUtils.lerp( _hslA.s, _hslB.s, alpha ); + const l = MathUtils.lerp( _hslA.l, _hslB.l, alpha ); + + this.setHSL( h, s, l ); + + return this; + + } + + equals( c ) { + + return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b ); + + } + + fromArray( array, offset = 0 ) { + + this.r = array[ offset ]; + this.g = array[ offset + 1 ]; + this.b = array[ offset + 2 ]; + + return this; + + } + + toArray( array = [], offset = 0 ) { + + array[ offset ] = this.r; + array[ offset + 1 ] = this.g; + array[ offset + 2 ] = this.b; + + return array; + + } + + fromBufferAttribute( attribute, index ) { + + this.r = attribute.getX( index ); + this.g = attribute.getY( index ); + this.b = attribute.getZ( index ); + + if ( attribute.normalized === true ) { + + // assuming Uint8Array + + this.r /= 255; + this.g /= 255; + this.b /= 255; + + } + + return this; + + } + + toJSON() { + + return this.getHex(); + + } + +} + +Color.NAMES = _colorKeywords; +Color.prototype.r = 1; +Color.prototype.g = 1; +Color.prototype.b = 1; + +class Face3 { + + constructor( a, b, c, normal, color, materialIndex = 0 ) { + + this.a = a; + this.b = b; + this.c = c; + + this.normal = ( normal && normal.isVector3 ) ? normal : new Vector3(); + this.vertexNormals = Array.isArray( normal ) ? normal : []; + + this.color = ( color && color.isColor ) ? color : new Color(); + this.vertexColors = Array.isArray( color ) ? color : []; + + this.materialIndex = materialIndex; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( source ) { + + this.a = source.a; + this.b = source.b; + this.c = source.c; + + this.normal.copy( source.normal ); + this.color.copy( source.color ); + + this.materialIndex = source.materialIndex; + + for ( let i = 0, il = source.vertexNormals.length; i < il; i ++ ) { + + this.vertexNormals[ i ] = source.vertexNormals[ i ].clone(); + + } + + for ( let i = 0, il = source.vertexColors.length; i < il; i ++ ) { + + this.vertexColors[ i ] = source.vertexColors[ i ].clone(); + + } + + return this; + + } + +} + +let materialId = 0; + +function Material() { + + Object.defineProperty( this, 'id', { value: materialId ++ } ); + + this.uuid = MathUtils.generateUUID(); + + this.name = ''; + this.type = 'Material'; + + this.fog = true; + + this.blending = NormalBlending; + this.side = FrontSide; + this.flatShading = false; + this.vertexColors = false; + + this.opacity = 1; + this.transparent = false; + + this.blendSrc = SrcAlphaFactor; + this.blendDst = OneMinusSrcAlphaFactor; + this.blendEquation = AddEquation; + this.blendSrcAlpha = null; + this.blendDstAlpha = null; + this.blendEquationAlpha = null; + + this.depthFunc = LessEqualDepth; + this.depthTest = true; + this.depthWrite = true; + + this.stencilWriteMask = 0xff; + this.stencilFunc = AlwaysStencilFunc; + this.stencilRef = 0; + this.stencilFuncMask = 0xff; + this.stencilFail = KeepStencilOp; + this.stencilZFail = KeepStencilOp; + this.stencilZPass = KeepStencilOp; + this.stencilWrite = false; + + this.clippingPlanes = null; + this.clipIntersection = false; + this.clipShadows = false; + + this.shadowSide = null; + + this.colorWrite = true; + + this.precision = null; // override the renderer's default precision for this material + + this.polygonOffset = false; + this.polygonOffsetFactor = 0; + this.polygonOffsetUnits = 0; + + this.dithering = false; + + this.alphaTest = 0; + this.premultipliedAlpha = false; + + this.visible = true; + + this.toneMapped = true; + + this.userData = {}; + + this.version = 0; + +} + +Material.prototype = Object.assign( Object.create( EventDispatcher.prototype ), { + + constructor: Material, + + isMaterial: true, + + onBeforeCompile: function ( /* shaderobject, renderer */ ) {}, + + customProgramCacheKey: function () { + + return this.onBeforeCompile.toString(); + + }, + + setValues: function ( values ) { + + if ( values === undefined ) return; + + for ( const key in values ) { + + const newValue = values[ key ]; + + if ( newValue === undefined ) { + + console.warn( 'THREE.Material: \'' + key + '\' parameter is undefined.' ); + continue; + + } + + // for backward compatability if shading is set in the constructor + if ( key === 'shading' ) { + + console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' ); + this.flatShading = ( newValue === FlatShading ) ? true : false; + continue; + + } + + const currentValue = this[ key ]; + + if ( currentValue === undefined ) { + + console.warn( 'THREE.' + this.type + ': \'' + key + '\' is not a property of this material.' ); + continue; + + } + + if ( currentValue && currentValue.isColor ) { + + currentValue.set( newValue ); + + } else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) { + + currentValue.copy( newValue ); + + } else { + + this[ key ] = newValue; + + } + + } + + }, + + toJSON: function ( meta ) { + + const isRoot = ( meta === undefined || typeof meta === 'string' ); + + if ( isRoot ) { + + meta = { + textures: {}, + images: {} + }; + + } + + const data = { + metadata: { + version: 4.5, + type: 'Material', + generator: 'Material.toJSON' + } + }; + + // standard Material serialization + data.uuid = this.uuid; + data.type = this.type; + + if ( this.name !== '' ) data.name = this.name; + + if ( this.color && this.color.isColor ) data.color = this.color.getHex(); + + if ( this.roughness !== undefined ) data.roughness = this.roughness; + if ( this.metalness !== undefined ) data.metalness = this.metalness; + + if ( this.sheen && this.sheen.isColor ) data.sheen = this.sheen.getHex(); + if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex(); + if ( this.emissiveIntensity && this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity; + + if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex(); + if ( this.shininess !== undefined ) data.shininess = this.shininess; + if ( this.clearcoat !== undefined ) data.clearcoat = this.clearcoat; + if ( this.clearcoatRoughness !== undefined ) data.clearcoatRoughness = this.clearcoatRoughness; + + if ( this.clearcoatMap && this.clearcoatMap.isTexture ) { + + data.clearcoatMap = this.clearcoatMap.toJSON( meta ).uuid; + + } + + if ( this.clearcoatRoughnessMap && this.clearcoatRoughnessMap.isTexture ) { + + data.clearcoatRoughnessMap = this.clearcoatRoughnessMap.toJSON( meta ).uuid; + + } + + if ( this.clearcoatNormalMap && this.clearcoatNormalMap.isTexture ) { + + data.clearcoatNormalMap = this.clearcoatNormalMap.toJSON( meta ).uuid; + data.clearcoatNormalScale = this.clearcoatNormalScale.toArray(); + + } + + if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid; + if ( this.matcap && this.matcap.isTexture ) data.matcap = this.matcap.toJSON( meta ).uuid; + if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid; + if ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid; + + if ( this.aoMap && this.aoMap.isTexture ) { + + data.aoMap = this.aoMap.toJSON( meta ).uuid; + data.aoMapIntensity = this.aoMapIntensity; + + } + + if ( this.bumpMap && this.bumpMap.isTexture ) { + + data.bumpMap = this.bumpMap.toJSON( meta ).uuid; + data.bumpScale = this.bumpScale; + + } + + if ( this.normalMap && this.normalMap.isTexture ) { + + data.normalMap = this.normalMap.toJSON( meta ).uuid; + data.normalMapType = this.normalMapType; + data.normalScale = this.normalScale.toArray(); + + } + + if ( this.displacementMap && this.displacementMap.isTexture ) { + + data.displacementMap = this.displacementMap.toJSON( meta ).uuid; + data.displacementScale = this.displacementScale; + data.displacementBias = this.displacementBias; + + } + + if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid; + if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid; + + if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid; + if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid; + + if ( this.envMap && this.envMap.isTexture ) { + + data.envMap = this.envMap.toJSON( meta ).uuid; + data.reflectivity = this.reflectivity; // Scale behind envMap + data.refractionRatio = this.refractionRatio; + + if ( this.combine !== undefined ) data.combine = this.combine; + if ( this.envMapIntensity !== undefined ) data.envMapIntensity = this.envMapIntensity; + + } + + if ( this.gradientMap && this.gradientMap.isTexture ) { + + data.gradientMap = this.gradientMap.toJSON( meta ).uuid; + + } + + if ( this.size !== undefined ) data.size = this.size; + if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation; + + if ( this.blending !== NormalBlending ) data.blending = this.blending; + if ( this.flatShading === true ) data.flatShading = this.flatShading; + if ( this.side !== FrontSide ) data.side = this.side; + if ( this.vertexColors ) data.vertexColors = true; + + if ( this.opacity < 1 ) data.opacity = this.opacity; + if ( this.transparent === true ) data.transparent = this.transparent; + + data.depthFunc = this.depthFunc; + data.depthTest = this.depthTest; + data.depthWrite = this.depthWrite; + + data.stencilWrite = this.stencilWrite; + data.stencilWriteMask = this.stencilWriteMask; + data.stencilFunc = this.stencilFunc; + data.stencilRef = this.stencilRef; + data.stencilFuncMask = this.stencilFuncMask; + data.stencilFail = this.stencilFail; + data.stencilZFail = this.stencilZFail; + data.stencilZPass = this.stencilZPass; + + // rotation (SpriteMaterial) + if ( this.rotation && this.rotation !== 0 ) data.rotation = this.rotation; + + if ( this.polygonOffset === true ) data.polygonOffset = true; + if ( this.polygonOffsetFactor !== 0 ) data.polygonOffsetFactor = this.polygonOffsetFactor; + if ( this.polygonOffsetUnits !== 0 ) data.polygonOffsetUnits = this.polygonOffsetUnits; + + if ( this.linewidth && this.linewidth !== 1 ) data.linewidth = this.linewidth; + if ( this.dashSize !== undefined ) data.dashSize = this.dashSize; + if ( this.gapSize !== undefined ) data.gapSize = this.gapSize; + if ( this.scale !== undefined ) data.scale = this.scale; + + if ( this.dithering === true ) data.dithering = true; + + if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest; + if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha; + + if ( this.wireframe === true ) data.wireframe = this.wireframe; + if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth; + if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap; + if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin; + + if ( this.morphTargets === true ) data.morphTargets = true; + if ( this.morphNormals === true ) data.morphNormals = true; + if ( this.skinning === true ) data.skinning = true; + + if ( this.visible === false ) data.visible = false; + + if ( this.toneMapped === false ) data.toneMapped = false; + + if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData; + + // TODO: Copied from Object3D.toJSON + + function extractFromCache( cache ) { + + const values = []; + + for ( const key in cache ) { + + const data = cache[ key ]; + delete data.metadata; + values.push( data ); + + } + + return values; + + } + + if ( isRoot ) { + + const textures = extractFromCache( meta.textures ); + const images = extractFromCache( meta.images ); + + if ( textures.length > 0 ) data.textures = textures; + if ( images.length > 0 ) data.images = images; + + } + + return data; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( source ) { + + this.name = source.name; + + this.fog = source.fog; + + this.blending = source.blending; + this.side = source.side; + this.flatShading = source.flatShading; + this.vertexColors = source.vertexColors; + + this.opacity = source.opacity; + this.transparent = source.transparent; + + this.blendSrc = source.blendSrc; + this.blendDst = source.blendDst; + this.blendEquation = source.blendEquation; + this.blendSrcAlpha = source.blendSrcAlpha; + this.blendDstAlpha = source.blendDstAlpha; + this.blendEquationAlpha = source.blendEquationAlpha; + + this.depthFunc = source.depthFunc; + this.depthTest = source.depthTest; + this.depthWrite = source.depthWrite; + + this.stencilWriteMask = source.stencilWriteMask; + this.stencilFunc = source.stencilFunc; + this.stencilRef = source.stencilRef; + this.stencilFuncMask = source.stencilFuncMask; + this.stencilFail = source.stencilFail; + this.stencilZFail = source.stencilZFail; + this.stencilZPass = source.stencilZPass; + this.stencilWrite = source.stencilWrite; + + const srcPlanes = source.clippingPlanes; + let dstPlanes = null; + + if ( srcPlanes !== null ) { + + const n = srcPlanes.length; + dstPlanes = new Array( n ); + + for ( let i = 0; i !== n; ++ i ) { + + dstPlanes[ i ] = srcPlanes[ i ].clone(); + + } + + } + + this.clippingPlanes = dstPlanes; + this.clipIntersection = source.clipIntersection; + this.clipShadows = source.clipShadows; + + this.shadowSide = source.shadowSide; + + this.colorWrite = source.colorWrite; + + this.precision = source.precision; + + this.polygonOffset = source.polygonOffset; + this.polygonOffsetFactor = source.polygonOffsetFactor; + this.polygonOffsetUnits = source.polygonOffsetUnits; + + this.dithering = source.dithering; + + this.alphaTest = source.alphaTest; + this.premultipliedAlpha = source.premultipliedAlpha; + + this.visible = source.visible; + + this.toneMapped = source.toneMapped; + + this.userData = JSON.parse( JSON.stringify( source.userData ) ); + + return this; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + +} ); + +Object.defineProperty( Material.prototype, 'needsUpdate', { + + set: function ( value ) { + + if ( value === true ) this.version ++; + + } + +} ); + +/** + * parameters = { + * color: , + * opacity: , + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.Multiply, + * reflectivity: , + * refractionRatio: , + * + * depthTest: , + * depthWrite: , + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: + * } + */ + +function MeshBasicMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshBasicMaterial'; + + this.color = new Color( 0xffffff ); // emissive + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + + this.setValues( parameters ); + +} + +MeshBasicMaterial.prototype = Object.create( Material.prototype ); +MeshBasicMaterial.prototype.constructor = MeshBasicMaterial; + +MeshBasicMaterial.prototype.isMeshBasicMaterial = true; + +MeshBasicMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + + return this; + +}; + +const _vector$3 = new Vector3(); +const _vector2$1 = new Vector2(); + +function BufferAttribute( array, itemSize, normalized ) { + + if ( Array.isArray( array ) ) { + + throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' ); + + } + + this.name = ''; + + this.array = array; + this.itemSize = itemSize; + this.count = array !== undefined ? array.length / itemSize : 0; + this.normalized = normalized === true; + + this.usage = StaticDrawUsage; + this.updateRange = { offset: 0, count: - 1 }; + + this.version = 0; + +} + +Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', { + + set: function ( value ) { + + if ( value === true ) this.version ++; + + } + +} ); + +Object.assign( BufferAttribute.prototype, { + + isBufferAttribute: true, + + onUploadCallback: function () {}, + + setUsage: function ( value ) { + + this.usage = value; + + return this; + + }, + + copy: function ( source ) { + + this.name = source.name; + this.array = new source.array.constructor( source.array ); + this.itemSize = source.itemSize; + this.count = source.count; + this.normalized = source.normalized; + + this.usage = source.usage; + + return this; + + }, + + copyAt: function ( index1, attribute, index2 ) { + + index1 *= this.itemSize; + index2 *= attribute.itemSize; + + for ( let i = 0, l = this.itemSize; i < l; i ++ ) { + + this.array[ index1 + i ] = attribute.array[ index2 + i ]; + + } + + return this; + + }, + + copyArray: function ( array ) { + + this.array.set( array ); + + return this; + + }, + + copyColorsArray: function ( colors ) { + + const array = this.array; + let offset = 0; + + for ( let i = 0, l = colors.length; i < l; i ++ ) { + + let color = colors[ i ]; + + if ( color === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i ); + color = new Color(); + + } + + array[ offset ++ ] = color.r; + array[ offset ++ ] = color.g; + array[ offset ++ ] = color.b; + + } + + return this; + + }, + + copyVector2sArray: function ( vectors ) { + + const array = this.array; + let offset = 0; + + for ( let i = 0, l = vectors.length; i < l; i ++ ) { + + let vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i ); + vector = new Vector2(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + + } + + return this; + + }, + + copyVector3sArray: function ( vectors ) { + + const array = this.array; + let offset = 0; + + for ( let i = 0, l = vectors.length; i < l; i ++ ) { + + let vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i ); + vector = new Vector3(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + array[ offset ++ ] = vector.z; + + } + + return this; + + }, + + copyVector4sArray: function ( vectors ) { + + const array = this.array; + let offset = 0; + + for ( let i = 0, l = vectors.length; i < l; i ++ ) { + + let vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i ); + vector = new Vector4(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + array[ offset ++ ] = vector.z; + array[ offset ++ ] = vector.w; + + } + + return this; + + }, + + applyMatrix3: function ( m ) { + + if ( this.itemSize === 2 ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector2$1.fromBufferAttribute( this, i ); + _vector2$1.applyMatrix3( m ); + + this.setXY( i, _vector2$1.x, _vector2$1.y ); + + } + + } else if ( this.itemSize === 3 ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$3.fromBufferAttribute( this, i ); + _vector$3.applyMatrix3( m ); + + this.setXYZ( i, _vector$3.x, _vector$3.y, _vector$3.z ); + + } + + } + + return this; + + }, + + applyMatrix4: function ( m ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$3.x = this.getX( i ); + _vector$3.y = this.getY( i ); + _vector$3.z = this.getZ( i ); + + _vector$3.applyMatrix4( m ); + + this.setXYZ( i, _vector$3.x, _vector$3.y, _vector$3.z ); + + } + + return this; + + }, + + applyNormalMatrix: function ( m ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$3.x = this.getX( i ); + _vector$3.y = this.getY( i ); + _vector$3.z = this.getZ( i ); + + _vector$3.applyNormalMatrix( m ); + + this.setXYZ( i, _vector$3.x, _vector$3.y, _vector$3.z ); + + } + + return this; + + }, + + transformDirection: function ( m ) { + + for ( let i = 0, l = this.count; i < l; i ++ ) { + + _vector$3.x = this.getX( i ); + _vector$3.y = this.getY( i ); + _vector$3.z = this.getZ( i ); + + _vector$3.transformDirection( m ); + + this.setXYZ( i, _vector$3.x, _vector$3.y, _vector$3.z ); + + } + + return this; + + }, + + set: function ( value, offset = 0 ) { + + this.array.set( value, offset ); + + return this; + + }, + + getX: function ( index ) { + + return this.array[ index * this.itemSize ]; + + }, + + setX: function ( index, x ) { + + this.array[ index * this.itemSize ] = x; + + return this; + + }, + + getY: function ( index ) { + + return this.array[ index * this.itemSize + 1 ]; + + }, + + setY: function ( index, y ) { + + this.array[ index * this.itemSize + 1 ] = y; + + return this; + + }, + + getZ: function ( index ) { + + return this.array[ index * this.itemSize + 2 ]; + + }, + + setZ: function ( index, z ) { + + this.array[ index * this.itemSize + 2 ] = z; + + return this; + + }, + + getW: function ( index ) { + + return this.array[ index * this.itemSize + 3 ]; + + }, + + setW: function ( index, w ) { + + this.array[ index * this.itemSize + 3 ] = w; + + return this; + + }, + + setXY: function ( index, x, y ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + + return this; + + }, + + setXYZ: function ( index, x, y, z ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + this.array[ index + 2 ] = z; + + return this; + + }, + + setXYZW: function ( index, x, y, z, w ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + this.array[ index + 2 ] = z; + this.array[ index + 3 ] = w; + + return this; + + }, + + onUpload: function ( callback ) { + + this.onUploadCallback = callback; + + return this; + + }, + + clone: function () { + + return new this.constructor( this.array, this.itemSize ).copy( this ); + + }, + + toJSON: function () { + + return { + itemSize: this.itemSize, + type: this.array.constructor.name, + array: Array.prototype.slice.call( this.array ), + normalized: this.normalized + }; + + } + +} ); + +// + +function Int8BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Int8Array( array ), itemSize, normalized ); + +} + +Int8BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Int8BufferAttribute.prototype.constructor = Int8BufferAttribute; + + +function Uint8BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized ); + +} + +Uint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute; + + +function Uint8ClampedBufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized ); + +} + +Uint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute; + + +function Int16BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Int16Array( array ), itemSize, normalized ); + +} + +Int16BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Int16BufferAttribute.prototype.constructor = Int16BufferAttribute; + + +function Uint16BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized ); + +} + +Uint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute; + + +function Int32BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Int32Array( array ), itemSize, normalized ); + +} + +Int32BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Int32BufferAttribute.prototype.constructor = Int32BufferAttribute; + + +function Uint32BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized ); + +} + +Uint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute; + +function Float16BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized ); + +} + +Float16BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Float16BufferAttribute.prototype.constructor = Float16BufferAttribute; +Float16BufferAttribute.prototype.isFloat16BufferAttribute = true; + +function Float32BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Float32Array( array ), itemSize, normalized ); + +} + +Float32BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Float32BufferAttribute.prototype.constructor = Float32BufferAttribute; + + +function Float64BufferAttribute( array, itemSize, normalized ) { + + BufferAttribute.call( this, new Float64Array( array ), itemSize, normalized ); + +} + +Float64BufferAttribute.prototype = Object.create( BufferAttribute.prototype ); +Float64BufferAttribute.prototype.constructor = Float64BufferAttribute; + +class DirectGeometry { + + constructor() { + + this.vertices = []; + this.normals = []; + this.colors = []; + this.uvs = []; + this.uvs2 = []; + + this.groups = []; + + this.morphTargets = {}; + + this.skinWeights = []; + this.skinIndices = []; + + // this.lineDistances = []; + + this.boundingBox = null; + this.boundingSphere = null; + + // update flags + + this.verticesNeedUpdate = false; + this.normalsNeedUpdate = false; + this.colorsNeedUpdate = false; + this.uvsNeedUpdate = false; + this.groupsNeedUpdate = false; + + } + + computeGroups( geometry ) { + + const groups = []; + + let group, i; + let materialIndex = undefined; + + const faces = geometry.faces; + + for ( i = 0; i < faces.length; i ++ ) { + + const face = faces[ i ]; + + // materials + + if ( face.materialIndex !== materialIndex ) { + + materialIndex = face.materialIndex; + + if ( group !== undefined ) { + + group.count = ( i * 3 ) - group.start; + groups.push( group ); + + } + + group = { + start: i * 3, + materialIndex: materialIndex + }; + + } + + } + + if ( group !== undefined ) { + + group.count = ( i * 3 ) - group.start; + groups.push( group ); + + } + + this.groups = groups; + + } + + fromGeometry( geometry ) { + + const faces = geometry.faces; + const vertices = geometry.vertices; + const faceVertexUvs = geometry.faceVertexUvs; + + const hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0; + const hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0; + + // morphs + + const morphTargets = geometry.morphTargets; + const morphTargetsLength = morphTargets.length; + + let morphTargetsPosition; + + if ( morphTargetsLength > 0 ) { + + morphTargetsPosition = []; + + for ( let i = 0; i < morphTargetsLength; i ++ ) { + + morphTargetsPosition[ i ] = { + name: morphTargets[ i ].name, + data: [] + }; + + } + + this.morphTargets.position = morphTargetsPosition; + + } + + const morphNormals = geometry.morphNormals; + const morphNormalsLength = morphNormals.length; + + let morphTargetsNormal; + + if ( morphNormalsLength > 0 ) { + + morphTargetsNormal = []; + + for ( let i = 0; i < morphNormalsLength; i ++ ) { + + morphTargetsNormal[ i ] = { + name: morphNormals[ i ].name, + data: [] + }; + + } + + this.morphTargets.normal = morphTargetsNormal; + + } + + // skins + + const skinIndices = geometry.skinIndices; + const skinWeights = geometry.skinWeights; + + const hasSkinIndices = skinIndices.length === vertices.length; + const hasSkinWeights = skinWeights.length === vertices.length; + + // + + if ( vertices.length > 0 && faces.length === 0 ) { + + console.error( 'THREE.DirectGeometry: Faceless geometries are not supported.' ); + + } + + for ( let i = 0; i < faces.length; i ++ ) { + + const face = faces[ i ]; + + this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] ); + + const vertexNormals = face.vertexNormals; + + if ( vertexNormals.length === 3 ) { + + this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] ); + + } else { + + const normal = face.normal; + + this.normals.push( normal, normal, normal ); + + } + + const vertexColors = face.vertexColors; + + if ( vertexColors.length === 3 ) { + + this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] ); + + } else { + + const color = face.color; + + this.colors.push( color, color, color ); + + } + + if ( hasFaceVertexUv === true ) { + + const vertexUvs = faceVertexUvs[ 0 ][ i ]; + + if ( vertexUvs !== undefined ) { + + this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] ); + + } else { + + console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i ); + + this.uvs.push( new Vector2(), new Vector2(), new Vector2() ); + + } + + } + + if ( hasFaceVertexUv2 === true ) { + + const vertexUvs = faceVertexUvs[ 1 ][ i ]; + + if ( vertexUvs !== undefined ) { + + this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] ); + + } else { + + console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i ); + + this.uvs2.push( new Vector2(), new Vector2(), new Vector2() ); + + } + + } + + // morphs + + for ( let j = 0; j < morphTargetsLength; j ++ ) { + + const morphTarget = morphTargets[ j ].vertices; + + morphTargetsPosition[ j ].data.push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] ); + + } + + for ( let j = 0; j < morphNormalsLength; j ++ ) { + + const morphNormal = morphNormals[ j ].vertexNormals[ i ]; + + morphTargetsNormal[ j ].data.push( morphNormal.a, morphNormal.b, morphNormal.c ); + + } + + // skins + + if ( hasSkinIndices ) { + + this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] ); + + } + + if ( hasSkinWeights ) { + + this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] ); + + } + + } + + this.computeGroups( geometry ); + + this.verticesNeedUpdate = geometry.verticesNeedUpdate; + this.normalsNeedUpdate = geometry.normalsNeedUpdate; + this.colorsNeedUpdate = geometry.colorsNeedUpdate; + this.uvsNeedUpdate = geometry.uvsNeedUpdate; + this.groupsNeedUpdate = geometry.groupsNeedUpdate; + + if ( geometry.boundingSphere !== null ) { + + this.boundingSphere = geometry.boundingSphere.clone(); + + } + + if ( geometry.boundingBox !== null ) { + + this.boundingBox = geometry.boundingBox.clone(); + + } + + return this; + + } + +} + +function arrayMax( array ) { + + if ( array.length === 0 ) return - Infinity; + + let max = array[ 0 ]; + + for ( let i = 1, l = array.length; i < l; ++ i ) { + + if ( array[ i ] > max ) max = array[ i ]; + + } + + return max; + +} + +const TYPED_ARRAYS = { + Int8Array: Int8Array, + Uint8Array: Uint8Array, + // Workaround for IE11 pre KB2929437. See #11440 + Uint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array, + Int16Array: Int16Array, + Uint16Array: Uint16Array, + Int32Array: Int32Array, + Uint32Array: Uint32Array, + Float32Array: Float32Array, + Float64Array: Float64Array +}; + +function getTypedArray( type, buffer ) { + + return new TYPED_ARRAYS[ type ]( buffer ); + +} + +let _bufferGeometryId = 1; // BufferGeometry uses odd numbers as Id + +const _m1$2 = new Matrix4(); +const _obj = new Object3D(); +const _offset = new Vector3(); +const _box$2 = new Box3(); +const _boxMorphTargets = new Box3(); +const _vector$4 = new Vector3(); + +function BufferGeometry() { + + Object.defineProperty( this, 'id', { value: _bufferGeometryId += 2 } ); + + this.uuid = MathUtils.generateUUID(); + + this.name = ''; + this.type = 'BufferGeometry'; + + this.index = null; + this.attributes = {}; + + this.morphAttributes = {}; + this.morphTargetsRelative = false; + + this.groups = []; + + this.boundingBox = null; + this.boundingSphere = null; + + this.drawRange = { start: 0, count: Infinity }; + + this.userData = {}; + +} + +BufferGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), { + + constructor: BufferGeometry, + + isBufferGeometry: true, + + getIndex: function () { + + return this.index; + + }, + + setIndex: function ( index ) { + + if ( Array.isArray( index ) ) { + + this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 ); + + } else { + + this.index = index; + + } + + return this; + + }, + + getAttribute: function ( name ) { + + return this.attributes[ name ]; + + }, + + setAttribute: function ( name, attribute ) { + + this.attributes[ name ] = attribute; + + return this; + + }, + + deleteAttribute: function ( name ) { + + delete this.attributes[ name ]; + + return this; + + }, + + hasAttribute: function ( name ) { + + return this.attributes[ name ] !== undefined; + + }, + + addGroup: function ( start, count, materialIndex = 0 ) { + + this.groups.push( { + + start: start, + count: count, + materialIndex: materialIndex + + } ); + + }, + + clearGroups: function () { + + this.groups = []; + + }, + + setDrawRange: function ( start, count ) { + + this.drawRange.start = start; + this.drawRange.count = count; + + }, + + applyMatrix4: function ( matrix ) { + + const position = this.attributes.position; + + if ( position !== undefined ) { + + position.applyMatrix4( matrix ); + + position.needsUpdate = true; + + } + + const normal = this.attributes.normal; + + if ( normal !== undefined ) { + + const normalMatrix = new Matrix3().getNormalMatrix( matrix ); + + normal.applyNormalMatrix( normalMatrix ); + + normal.needsUpdate = true; + + } + + const tangent = this.attributes.tangent; + + if ( tangent !== undefined ) { + + tangent.transformDirection( matrix ); + + tangent.needsUpdate = true; + + } + + if ( this.boundingBox !== null ) { + + this.computeBoundingBox(); + + } + + if ( this.boundingSphere !== null ) { + + this.computeBoundingSphere(); + + } + + return this; + + }, + + rotateX: function ( angle ) { + + // rotate geometry around world x-axis + + _m1$2.makeRotationX( angle ); + + this.applyMatrix4( _m1$2 ); + + return this; + + }, + + rotateY: function ( angle ) { + + // rotate geometry around world y-axis + + _m1$2.makeRotationY( angle ); + + this.applyMatrix4( _m1$2 ); + + return this; + + }, + + rotateZ: function ( angle ) { + + // rotate geometry around world z-axis + + _m1$2.makeRotationZ( angle ); + + this.applyMatrix4( _m1$2 ); + + return this; + + }, + + translate: function ( x, y, z ) { + + // translate geometry + + _m1$2.makeTranslation( x, y, z ); + + this.applyMatrix4( _m1$2 ); + + return this; + + }, + + scale: function ( x, y, z ) { + + // scale geometry + + _m1$2.makeScale( x, y, z ); + + this.applyMatrix4( _m1$2 ); + + return this; + + }, + + lookAt: function ( vector ) { + + _obj.lookAt( vector ); + + _obj.updateMatrix(); + + this.applyMatrix4( _obj.matrix ); + + return this; + + }, + + center: function () { + + this.computeBoundingBox(); + + this.boundingBox.getCenter( _offset ).negate(); + + this.translate( _offset.x, _offset.y, _offset.z ); + + return this; + + }, + + setFromObject: function ( object ) { + + // console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this ); + + const geometry = object.geometry; + + if ( object.isPoints || object.isLine ) { + + const positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 ); + const colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 ); + + this.setAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) ); + this.setAttribute( 'color', colors.copyColorsArray( geometry.colors ) ); + + if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) { + + const lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 ); + + this.setAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) ); + + } + + if ( geometry.boundingSphere !== null ) { + + this.boundingSphere = geometry.boundingSphere.clone(); + + } + + if ( geometry.boundingBox !== null ) { + + this.boundingBox = geometry.boundingBox.clone(); + + } + + } else if ( object.isMesh ) { + + if ( geometry && geometry.isGeometry ) { + + this.fromGeometry( geometry ); + + } + + } + + return this; + + }, + + setFromPoints: function ( points ) { + + const position = []; + + for ( let i = 0, l = points.length; i < l; i ++ ) { + + const point = points[ i ]; + position.push( point.x, point.y, point.z || 0 ); + + } + + this.setAttribute( 'position', new Float32BufferAttribute( position, 3 ) ); + + return this; + + }, + + updateFromObject: function ( object ) { + + let geometry = object.geometry; + + if ( object.isMesh ) { + + let direct = geometry.__directGeometry; + + if ( geometry.elementsNeedUpdate === true ) { + + direct = undefined; + geometry.elementsNeedUpdate = false; + + } + + if ( direct === undefined ) { + + return this.fromGeometry( geometry ); + + } + + direct.verticesNeedUpdate = geometry.verticesNeedUpdate; + direct.normalsNeedUpdate = geometry.normalsNeedUpdate; + direct.colorsNeedUpdate = geometry.colorsNeedUpdate; + direct.uvsNeedUpdate = geometry.uvsNeedUpdate; + direct.groupsNeedUpdate = geometry.groupsNeedUpdate; + + geometry.verticesNeedUpdate = false; + geometry.normalsNeedUpdate = false; + geometry.colorsNeedUpdate = false; + geometry.uvsNeedUpdate = false; + geometry.groupsNeedUpdate = false; + + geometry = direct; + + } + + if ( geometry.verticesNeedUpdate === true ) { + + const attribute = this.attributes.position; + + if ( attribute !== undefined ) { + + attribute.copyVector3sArray( geometry.vertices ); + attribute.needsUpdate = true; + + } + + geometry.verticesNeedUpdate = false; + + } + + if ( geometry.normalsNeedUpdate === true ) { + + const attribute = this.attributes.normal; + + if ( attribute !== undefined ) { + + attribute.copyVector3sArray( geometry.normals ); + attribute.needsUpdate = true; + + } + + geometry.normalsNeedUpdate = false; + + } + + if ( geometry.colorsNeedUpdate === true ) { + + const attribute = this.attributes.color; + + if ( attribute !== undefined ) { + + attribute.copyColorsArray( geometry.colors ); + attribute.needsUpdate = true; + + } + + geometry.colorsNeedUpdate = false; + + } + + if ( geometry.uvsNeedUpdate ) { + + const attribute = this.attributes.uv; + + if ( attribute !== undefined ) { + + attribute.copyVector2sArray( geometry.uvs ); + attribute.needsUpdate = true; + + } + + geometry.uvsNeedUpdate = false; + + } + + if ( geometry.lineDistancesNeedUpdate ) { + + const attribute = this.attributes.lineDistance; + + if ( attribute !== undefined ) { + + attribute.copyArray( geometry.lineDistances ); + attribute.needsUpdate = true; + + } + + geometry.lineDistancesNeedUpdate = false; + + } + + if ( geometry.groupsNeedUpdate ) { + + geometry.computeGroups( object.geometry ); + this.groups = geometry.groups; + + geometry.groupsNeedUpdate = false; + + } + + return this; + + }, + + fromGeometry: function ( geometry ) { + + geometry.__directGeometry = new DirectGeometry().fromGeometry( geometry ); + + return this.fromDirectGeometry( geometry.__directGeometry ); + + }, + + fromDirectGeometry: function ( geometry ) { + + const positions = new Float32Array( geometry.vertices.length * 3 ); + this.setAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) ); + + if ( geometry.normals.length > 0 ) { + + const normals = new Float32Array( geometry.normals.length * 3 ); + this.setAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) ); + + } + + if ( geometry.colors.length > 0 ) { + + const colors = new Float32Array( geometry.colors.length * 3 ); + this.setAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) ); + + } + + if ( geometry.uvs.length > 0 ) { + + const uvs = new Float32Array( geometry.uvs.length * 2 ); + this.setAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) ); + + } + + if ( geometry.uvs2.length > 0 ) { + + const uvs2 = new Float32Array( geometry.uvs2.length * 2 ); + this.setAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) ); + + } + + // groups + + this.groups = geometry.groups; + + // morphs + + for ( const name in geometry.morphTargets ) { + + const array = []; + const morphTargets = geometry.morphTargets[ name ]; + + for ( let i = 0, l = morphTargets.length; i < l; i ++ ) { + + const morphTarget = morphTargets[ i ]; + + const attribute = new Float32BufferAttribute( morphTarget.data.length * 3, 3 ); + attribute.name = morphTarget.name; + + array.push( attribute.copyVector3sArray( morphTarget.data ) ); + + } + + this.morphAttributes[ name ] = array; + + } + + // skinning + + if ( geometry.skinIndices.length > 0 ) { + + const skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 ); + this.setAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) ); + + } + + if ( geometry.skinWeights.length > 0 ) { + + const skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 ); + this.setAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) ); + + } + + // + + if ( geometry.boundingSphere !== null ) { + + this.boundingSphere = geometry.boundingSphere.clone(); + + } + + if ( geometry.boundingBox !== null ) { + + this.boundingBox = geometry.boundingBox.clone(); + + } + + return this; + + }, + + computeBoundingBox: function () { + + if ( this.boundingBox === null ) { + + this.boundingBox = new Box3(); + + } + + const position = this.attributes.position; + const morphAttributesPosition = this.morphAttributes.position; + + if ( position && position.isGLBufferAttribute ) { + + console.error( 'THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".', this ); + + this.boundingBox.set( + new Vector3( - Infinity, - Infinity, - Infinity ), + new Vector3( + Infinity, + Infinity, + Infinity ) + ); + + return; + + } + + if ( position !== undefined ) { + + this.boundingBox.setFromBufferAttribute( position ); + + // process morph attributes if present + + if ( morphAttributesPosition ) { + + for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) { + + const morphAttribute = morphAttributesPosition[ i ]; + _box$2.setFromBufferAttribute( morphAttribute ); + + if ( this.morphTargetsRelative ) { + + _vector$4.addVectors( this.boundingBox.min, _box$2.min ); + this.boundingBox.expandByPoint( _vector$4 ); + + _vector$4.addVectors( this.boundingBox.max, _box$2.max ); + this.boundingBox.expandByPoint( _vector$4 ); + + } else { + + this.boundingBox.expandByPoint( _box$2.min ); + this.boundingBox.expandByPoint( _box$2.max ); + + } + + } + + } + + } else { + + this.boundingBox.makeEmpty(); + + } + + if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) { + + console.error( 'THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this ); + + } + + }, + + computeBoundingSphere: function () { + + if ( this.boundingSphere === null ) { + + this.boundingSphere = new Sphere(); + + } + + const position = this.attributes.position; + const morphAttributesPosition = this.morphAttributes.position; + + if ( position && position.isGLBufferAttribute ) { + + console.error( 'THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".', this ); + + this.boundingSphere.set( new Vector3(), Infinity ); + + return; + + } + + if ( position ) { + + // first, find the center of the bounding sphere + + const center = this.boundingSphere.center; + + _box$2.setFromBufferAttribute( position ); + + // process morph attributes if present + + if ( morphAttributesPosition ) { + + for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) { + + const morphAttribute = morphAttributesPosition[ i ]; + _boxMorphTargets.setFromBufferAttribute( morphAttribute ); + + if ( this.morphTargetsRelative ) { + + _vector$4.addVectors( _box$2.min, _boxMorphTargets.min ); + _box$2.expandByPoint( _vector$4 ); + + _vector$4.addVectors( _box$2.max, _boxMorphTargets.max ); + _box$2.expandByPoint( _vector$4 ); + + } else { + + _box$2.expandByPoint( _boxMorphTargets.min ); + _box$2.expandByPoint( _boxMorphTargets.max ); + + } + + } + + } + + _box$2.getCenter( center ); + + // second, try to find a boundingSphere with a radius smaller than the + // boundingSphere of the boundingBox: sqrt(3) smaller in the best case + + let maxRadiusSq = 0; + + for ( let i = 0, il = position.count; i < il; i ++ ) { + + _vector$4.fromBufferAttribute( position, i ); + + maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( _vector$4 ) ); + + } + + // process morph attributes if present + + if ( morphAttributesPosition ) { + + for ( let i = 0, il = morphAttributesPosition.length; i < il; i ++ ) { + + const morphAttribute = morphAttributesPosition[ i ]; + const morphTargetsRelative = this.morphTargetsRelative; + + for ( let j = 0, jl = morphAttribute.count; j < jl; j ++ ) { + + _vector$4.fromBufferAttribute( morphAttribute, j ); + + if ( morphTargetsRelative ) { + + _offset.fromBufferAttribute( position, j ); + _vector$4.add( _offset ); + + } + + maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( _vector$4 ) ); + + } + + } + + } + + this.boundingSphere.radius = Math.sqrt( maxRadiusSq ); + + if ( isNaN( this.boundingSphere.radius ) ) { + + console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this ); + + } + + } + + }, + + computeFaceNormals: function () { + + // backwards compatibility + + }, + + computeVertexNormals: function () { + + const index = this.index; + const positionAttribute = this.getAttribute( 'position' ); + + if ( positionAttribute !== undefined ) { + + let normalAttribute = this.getAttribute( 'normal' ); + + if ( normalAttribute === undefined ) { + + normalAttribute = new BufferAttribute( new Float32Array( positionAttribute.count * 3 ), 3 ); + this.setAttribute( 'normal', normalAttribute ); + + } else { + + // reset existing normals to zero + + for ( let i = 0, il = normalAttribute.count; i < il; i ++ ) { + + normalAttribute.setXYZ( i, 0, 0, 0 ); + + } + + } + + const pA = new Vector3(), pB = new Vector3(), pC = new Vector3(); + const nA = new Vector3(), nB = new Vector3(), nC = new Vector3(); + const cb = new Vector3(), ab = new Vector3(); + + // indexed elements + + if ( index ) { + + for ( let i = 0, il = index.count; i < il; i += 3 ) { + + const vA = index.getX( i + 0 ); + const vB = index.getX( i + 1 ); + const vC = index.getX( i + 2 ); + + pA.fromBufferAttribute( positionAttribute, vA ); + pB.fromBufferAttribute( positionAttribute, vB ); + pC.fromBufferAttribute( positionAttribute, vC ); + + cb.subVectors( pC, pB ); + ab.subVectors( pA, pB ); + cb.cross( ab ); + + nA.fromBufferAttribute( normalAttribute, vA ); + nB.fromBufferAttribute( normalAttribute, vB ); + nC.fromBufferAttribute( normalAttribute, vC ); + + nA.add( cb ); + nB.add( cb ); + nC.add( cb ); + + normalAttribute.setXYZ( vA, nA.x, nA.y, nA.z ); + normalAttribute.setXYZ( vB, nB.x, nB.y, nB.z ); + normalAttribute.setXYZ( vC, nC.x, nC.y, nC.z ); + + } + + } else { + + // non-indexed elements (unconnected triangle soup) + + for ( let i = 0, il = positionAttribute.count; i < il; i += 3 ) { + + pA.fromBufferAttribute( positionAttribute, i + 0 ); + pB.fromBufferAttribute( positionAttribute, i + 1 ); + pC.fromBufferAttribute( positionAttribute, i + 2 ); + + cb.subVectors( pC, pB ); + ab.subVectors( pA, pB ); + cb.cross( ab ); + + normalAttribute.setXYZ( i + 0, cb.x, cb.y, cb.z ); + normalAttribute.setXYZ( i + 1, cb.x, cb.y, cb.z ); + normalAttribute.setXYZ( i + 2, cb.x, cb.y, cb.z ); + + } + + } + + this.normalizeNormals(); + + normalAttribute.needsUpdate = true; + + } + + }, + + merge: function ( geometry, offset ) { + + if ( ! ( geometry && geometry.isBufferGeometry ) ) { + + console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry ); + return; + + } + + if ( offset === undefined ) { + + offset = 0; + + console.warn( + 'THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. ' + + 'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.' + ); + + } + + const attributes = this.attributes; + + for ( const key in attributes ) { + + if ( geometry.attributes[ key ] === undefined ) continue; + + const attribute1 = attributes[ key ]; + const attributeArray1 = attribute1.array; + + const attribute2 = geometry.attributes[ key ]; + const attributeArray2 = attribute2.array; + + const attributeOffset = attribute2.itemSize * offset; + const length = Math.min( attributeArray2.length, attributeArray1.length - attributeOffset ); + + for ( let i = 0, j = attributeOffset; i < length; i ++, j ++ ) { + + attributeArray1[ j ] = attributeArray2[ i ]; + + } + + } + + return this; + + }, + + normalizeNormals: function () { + + const normals = this.attributes.normal; + + for ( let i = 0, il = normals.count; i < il; i ++ ) { + + _vector$4.fromBufferAttribute( normals, i ); + + _vector$4.normalize(); + + normals.setXYZ( i, _vector$4.x, _vector$4.y, _vector$4.z ); + + } + + }, + + toNonIndexed: function () { + + function convertBufferAttribute( attribute, indices ) { + + const array = attribute.array; + const itemSize = attribute.itemSize; + const normalized = attribute.normalized; + + const array2 = new array.constructor( indices.length * itemSize ); + + let index = 0, index2 = 0; + + for ( let i = 0, l = indices.length; i < l; i ++ ) { + + index = indices[ i ] * itemSize; + + for ( let j = 0; j < itemSize; j ++ ) { + + array2[ index2 ++ ] = array[ index ++ ]; + + } + + } + + return new BufferAttribute( array2, itemSize, normalized ); + + } + + // + + if ( this.index === null ) { + + console.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' ); + return this; + + } + + const geometry2 = new BufferGeometry(); + + const indices = this.index.array; + const attributes = this.attributes; + + // attributes + + for ( const name in attributes ) { + + const attribute = attributes[ name ]; + + const newAttribute = convertBufferAttribute( attribute, indices ); + + geometry2.setAttribute( name, newAttribute ); + + } + + // morph attributes + + const morphAttributes = this.morphAttributes; + + for ( const name in morphAttributes ) { + + const morphArray = []; + const morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes + + for ( let i = 0, il = morphAttribute.length; i < il; i ++ ) { + + const attribute = morphAttribute[ i ]; + + const newAttribute = convertBufferAttribute( attribute, indices ); + + morphArray.push( newAttribute ); + + } + + geometry2.morphAttributes[ name ] = morphArray; + + } + + geometry2.morphTargetsRelative = this.morphTargetsRelative; + + // groups + + const groups = this.groups; + + for ( let i = 0, l = groups.length; i < l; i ++ ) { + + const group = groups[ i ]; + geometry2.addGroup( group.start, group.count, group.materialIndex ); + + } + + return geometry2; + + }, + + toJSON: function () { + + const data = { + metadata: { + version: 4.5, + type: 'BufferGeometry', + generator: 'BufferGeometry.toJSON' + } + }; + + // standard BufferGeometry serialization + + data.uuid = this.uuid; + data.type = this.type; + if ( this.name !== '' ) data.name = this.name; + if ( Object.keys( this.userData ).length > 0 ) data.userData = this.userData; + + if ( this.parameters !== undefined ) { + + const parameters = this.parameters; + + for ( const key in parameters ) { + + if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ]; + + } + + return data; + + } + + data.data = { attributes: {} }; + + const index = this.index; + + if ( index !== null ) { + + data.data.index = { + type: index.array.constructor.name, + array: Array.prototype.slice.call( index.array ) + }; + + } + + const attributes = this.attributes; + + for ( const key in attributes ) { + + const attribute = attributes[ key ]; + + const attributeData = attribute.toJSON( data.data ); + + if ( attribute.name !== '' ) attributeData.name = attribute.name; + + data.data.attributes[ key ] = attributeData; + + } + + const morphAttributes = {}; + let hasMorphAttributes = false; + + for ( const key in this.morphAttributes ) { + + const attributeArray = this.morphAttributes[ key ]; + + const array = []; + + for ( let i = 0, il = attributeArray.length; i < il; i ++ ) { + + const attribute = attributeArray[ i ]; + + const attributeData = attribute.toJSON( data.data ); + + if ( attribute.name !== '' ) attributeData.name = attribute.name; + + array.push( attributeData ); + + } + + if ( array.length > 0 ) { + + morphAttributes[ key ] = array; + + hasMorphAttributes = true; + + } + + } + + if ( hasMorphAttributes ) { + + data.data.morphAttributes = morphAttributes; + data.data.morphTargetsRelative = this.morphTargetsRelative; + + } + + const groups = this.groups; + + if ( groups.length > 0 ) { + + data.data.groups = JSON.parse( JSON.stringify( groups ) ); + + } + + const boundingSphere = this.boundingSphere; + + if ( boundingSphere !== null ) { + + data.data.boundingSphere = { + center: boundingSphere.center.toArray(), + radius: boundingSphere.radius + }; + + } + + return data; + + }, + + clone: function () { + + /* + // Handle primitives + + const parameters = this.parameters; + + if ( parameters !== undefined ) { + + const values = []; + + for ( const key in parameters ) { + + values.push( parameters[ key ] ); + + } + + const geometry = Object.create( this.constructor.prototype ); + this.constructor.apply( geometry, values ); + return geometry; + + } + + return new this.constructor().copy( this ); + */ + + return new BufferGeometry().copy( this ); + + }, + + copy: function ( source ) { + + // reset + + this.index = null; + this.attributes = {}; + this.morphAttributes = {}; + this.groups = []; + this.boundingBox = null; + this.boundingSphere = null; + + // used for storing cloned, shared data + + const data = {}; + + // name + + this.name = source.name; + + // index + + const index = source.index; + + if ( index !== null ) { + + this.setIndex( index.clone( data ) ); + + } + + // attributes + + const attributes = source.attributes; + + for ( const name in attributes ) { + + const attribute = attributes[ name ]; + this.setAttribute( name, attribute.clone( data ) ); + + } + + // morph attributes + + const morphAttributes = source.morphAttributes; + + for ( const name in morphAttributes ) { + + const array = []; + const morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes + + for ( let i = 0, l = morphAttribute.length; i < l; i ++ ) { + + array.push( morphAttribute[ i ].clone( data ) ); + + } + + this.morphAttributes[ name ] = array; + + } + + this.morphTargetsRelative = source.morphTargetsRelative; + + // groups + + const groups = source.groups; + + for ( let i = 0, l = groups.length; i < l; i ++ ) { + + const group = groups[ i ]; + this.addGroup( group.start, group.count, group.materialIndex ); + + } + + // bounding box + + const boundingBox = source.boundingBox; + + if ( boundingBox !== null ) { + + this.boundingBox = boundingBox.clone(); + + } + + // bounding sphere + + const boundingSphere = source.boundingSphere; + + if ( boundingSphere !== null ) { + + this.boundingSphere = boundingSphere.clone(); + + } + + // draw range + + this.drawRange.start = source.drawRange.start; + this.drawRange.count = source.drawRange.count; + + // user data + + this.userData = source.userData; + + return this; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + +} ); + +const _inverseMatrix = new Matrix4(); +const _ray = new Ray(); +const _sphere = new Sphere(); + +const _vA = new Vector3(); +const _vB = new Vector3(); +const _vC = new Vector3(); + +const _tempA = new Vector3(); +const _tempB = new Vector3(); +const _tempC = new Vector3(); + +const _morphA = new Vector3(); +const _morphB = new Vector3(); +const _morphC = new Vector3(); + +const _uvA = new Vector2(); +const _uvB = new Vector2(); +const _uvC = new Vector2(); + +const _intersectionPoint = new Vector3(); +const _intersectionPointWorld = new Vector3(); + +function Mesh( geometry = new BufferGeometry(), material = new MeshBasicMaterial() ) { + + Object3D.call( this ); + + this.type = 'Mesh'; + + this.geometry = geometry; + this.material = material; + + this.updateMorphTargets(); + +} + +Mesh.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Mesh, + + isMesh: true, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + if ( source.morphTargetInfluences !== undefined ) { + + this.morphTargetInfluences = source.morphTargetInfluences.slice(); + + } + + if ( source.morphTargetDictionary !== undefined ) { + + this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary ); + + } + + this.material = source.material; + this.geometry = source.geometry; + + return this; + + }, + + updateMorphTargets: function () { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + const morphAttributes = geometry.morphAttributes; + const keys = Object.keys( morphAttributes ); + + if ( keys.length > 0 ) { + + const morphAttribute = morphAttributes[ keys[ 0 ] ]; + + if ( morphAttribute !== undefined ) { + + this.morphTargetInfluences = []; + this.morphTargetDictionary = {}; + + for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) { + + const name = morphAttribute[ m ].name || String( m ); + + this.morphTargetInfluences.push( 0 ); + this.morphTargetDictionary[ name ] = m; + + } + + } + + } + + } else { + + const morphTargets = geometry.morphTargets; + + if ( morphTargets !== undefined && morphTargets.length > 0 ) { + + console.error( 'THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + + }, + + raycast: function ( raycaster, intersects ) { + + const geometry = this.geometry; + const material = this.material; + const matrixWorld = this.matrixWorld; + + if ( material === undefined ) return; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + _sphere.copy( geometry.boundingSphere ); + _sphere.applyMatrix4( matrixWorld ); + + if ( raycaster.ray.intersectsSphere( _sphere ) === false ) return; + + // + + _inverseMatrix.copy( matrixWorld ).invert(); + _ray.copy( raycaster.ray ).applyMatrix4( _inverseMatrix ); + + // Check boundingBox before continuing + + if ( geometry.boundingBox !== null ) { + + if ( _ray.intersectsBox( geometry.boundingBox ) === false ) return; + + } + + let intersection; + + if ( geometry.isBufferGeometry ) { + + const index = geometry.index; + const position = geometry.attributes.position; + const morphPosition = geometry.morphAttributes.position; + const morphTargetsRelative = geometry.morphTargetsRelative; + const uv = geometry.attributes.uv; + const uv2 = geometry.attributes.uv2; + const groups = geometry.groups; + const drawRange = geometry.drawRange; + + if ( index !== null ) { + + // indexed buffer geometry + + if ( Array.isArray( material ) ) { + + for ( let i = 0, il = groups.length; i < il; i ++ ) { + + const group = groups[ i ]; + const groupMaterial = material[ group.materialIndex ]; + + const start = Math.max( group.start, drawRange.start ); + const end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ); + + for ( let j = start, jl = end; j < jl; j += 3 ) { + + const a = index.getX( j ); + const b = index.getX( j + 1 ); + const c = index.getX( j + 2 ); + + intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( j / 3 ); // triangle number in indexed buffer semantics + intersection.face.materialIndex = group.materialIndex; + intersects.push( intersection ); + + } + + } + + } + + } else { + + const start = Math.max( 0, drawRange.start ); + const end = Math.min( index.count, ( drawRange.start + drawRange.count ) ); + + for ( let i = start, il = end; i < il; i += 3 ) { + + const a = index.getX( i ); + const b = index.getX( i + 1 ); + const c = index.getX( i + 2 ); + + intersection = checkBufferGeometryIntersection( this, material, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indexed buffer semantics + intersects.push( intersection ); + + } + + } + + } + + } else if ( position !== undefined ) { + + // non-indexed buffer geometry + + if ( Array.isArray( material ) ) { + + for ( let i = 0, il = groups.length; i < il; i ++ ) { + + const group = groups[ i ]; + const groupMaterial = material[ group.materialIndex ]; + + const start = Math.max( group.start, drawRange.start ); + const end = Math.min( ( group.start + group.count ), ( drawRange.start + drawRange.count ) ); + + for ( let j = start, jl = end; j < jl; j += 3 ) { + + const a = j; + const b = j + 1; + const c = j + 2; + + intersection = checkBufferGeometryIntersection( this, groupMaterial, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( j / 3 ); // triangle number in non-indexed buffer semantics + intersection.face.materialIndex = group.materialIndex; + intersects.push( intersection ); + + } + + } + + } + + } else { + + const start = Math.max( 0, drawRange.start ); + const end = Math.min( position.count, ( drawRange.start + drawRange.count ) ); + + for ( let i = start, il = end; i < il; i += 3 ) { + + const a = i; + const b = i + 1; + const c = i + 2; + + intersection = checkBufferGeometryIntersection( this, material, raycaster, _ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( i / 3 ); // triangle number in non-indexed buffer semantics + intersects.push( intersection ); + + } + + } + + } + + } + + } else if ( geometry.isGeometry ) { + + const isMultiMaterial = Array.isArray( material ); + + const vertices = geometry.vertices; + const faces = geometry.faces; + let uvs; + + const faceVertexUvs = geometry.faceVertexUvs[ 0 ]; + if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs; + + for ( let f = 0, fl = faces.length; f < fl; f ++ ) { + + const face = faces[ f ]; + const faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material; + + if ( faceMaterial === undefined ) continue; + + const fvA = vertices[ face.a ]; + const fvB = vertices[ face.b ]; + const fvC = vertices[ face.c ]; + + intersection = checkIntersection( this, faceMaterial, raycaster, _ray, fvA, fvB, fvC, _intersectionPoint ); + + if ( intersection ) { + + if ( uvs && uvs[ f ] ) { + + const uvs_f = uvs[ f ]; + _uvA.copy( uvs_f[ 0 ] ); + _uvB.copy( uvs_f[ 1 ] ); + _uvC.copy( uvs_f[ 2 ] ); + + intersection.uv = Triangle.getUV( _intersectionPoint, fvA, fvB, fvC, _uvA, _uvB, _uvC, new Vector2() ); + + } + + intersection.face = face; + intersection.faceIndex = f; + intersects.push( intersection ); + + } + + } + + } + + } + +} ); + +function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) { + + let intersect; + + if ( material.side === BackSide ) { + + intersect = ray.intersectTriangle( pC, pB, pA, true, point ); + + } else { + + intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point ); + + } + + if ( intersect === null ) return null; + + _intersectionPointWorld.copy( point ); + _intersectionPointWorld.applyMatrix4( object.matrixWorld ); + + const distance = raycaster.ray.origin.distanceTo( _intersectionPointWorld ); + + if ( distance < raycaster.near || distance > raycaster.far ) return null; + + return { + distance: distance, + point: _intersectionPointWorld.clone(), + object: object + }; + +} + +function checkBufferGeometryIntersection( object, material, raycaster, ray, position, morphPosition, morphTargetsRelative, uv, uv2, a, b, c ) { + + _vA.fromBufferAttribute( position, a ); + _vB.fromBufferAttribute( position, b ); + _vC.fromBufferAttribute( position, c ); + + const morphInfluences = object.morphTargetInfluences; + + if ( material.morphTargets && morphPosition && morphInfluences ) { + + _morphA.set( 0, 0, 0 ); + _morphB.set( 0, 0, 0 ); + _morphC.set( 0, 0, 0 ); + + for ( let i = 0, il = morphPosition.length; i < il; i ++ ) { + + const influence = morphInfluences[ i ]; + const morphAttribute = morphPosition[ i ]; + + if ( influence === 0 ) continue; + + _tempA.fromBufferAttribute( morphAttribute, a ); + _tempB.fromBufferAttribute( morphAttribute, b ); + _tempC.fromBufferAttribute( morphAttribute, c ); + + if ( morphTargetsRelative ) { + + _morphA.addScaledVector( _tempA, influence ); + _morphB.addScaledVector( _tempB, influence ); + _morphC.addScaledVector( _tempC, influence ); + + } else { + + _morphA.addScaledVector( _tempA.sub( _vA ), influence ); + _morphB.addScaledVector( _tempB.sub( _vB ), influence ); + _morphC.addScaledVector( _tempC.sub( _vC ), influence ); + + } + + } + + _vA.add( _morphA ); + _vB.add( _morphB ); + _vC.add( _morphC ); + + } + + if ( object.isSkinnedMesh ) { + + object.boneTransform( a, _vA ); + object.boneTransform( b, _vB ); + object.boneTransform( c, _vC ); + + } + + const intersection = checkIntersection( object, material, raycaster, ray, _vA, _vB, _vC, _intersectionPoint ); + + if ( intersection ) { + + if ( uv ) { + + _uvA.fromBufferAttribute( uv, a ); + _uvB.fromBufferAttribute( uv, b ); + _uvC.fromBufferAttribute( uv, c ); + + intersection.uv = Triangle.getUV( _intersectionPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2() ); + + } + + if ( uv2 ) { + + _uvA.fromBufferAttribute( uv2, a ); + _uvB.fromBufferAttribute( uv2, b ); + _uvC.fromBufferAttribute( uv2, c ); + + intersection.uv2 = Triangle.getUV( _intersectionPoint, _vA, _vB, _vC, _uvA, _uvB, _uvC, new Vector2() ); + + } + + const face = new Face3( a, b, c ); + Triangle.getNormal( _vA, _vB, _vC, face.normal ); + + intersection.face = face; + + } + + return intersection; + +} + +class BoxBufferGeometry extends BufferGeometry { + + constructor( width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1 ) { + + super(); + + this.type = 'BoxBufferGeometry'; + + this.parameters = { + width: width, + height: height, + depth: depth, + widthSegments: widthSegments, + heightSegments: heightSegments, + depthSegments: depthSegments + }; + + const scope = this; + + // segments + + widthSegments = Math.floor( widthSegments ); + heightSegments = Math.floor( heightSegments ); + depthSegments = Math.floor( depthSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + let numberOfVertices = 0; + let groupStart = 0; + + // build each side of the box geometry + + buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px + buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx + buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py + buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny + buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz + buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) { + + const segmentWidth = width / gridX; + const segmentHeight = height / gridY; + + const widthHalf = width / 2; + const heightHalf = height / 2; + const depthHalf = depth / 2; + + const gridX1 = gridX + 1; + const gridY1 = gridY + 1; + + let vertexCounter = 0; + let groupCount = 0; + + const vector = new Vector3(); + + // generate vertices, normals and uvs + + for ( let iy = 0; iy < gridY1; iy ++ ) { + + const y = iy * segmentHeight - heightHalf; + + for ( let ix = 0; ix < gridX1; ix ++ ) { + + const x = ix * segmentWidth - widthHalf; + + // set values to correct vector component + + vector[ u ] = x * udir; + vector[ v ] = y * vdir; + vector[ w ] = depthHalf; + + // now apply vector to vertex buffer + + vertices.push( vector.x, vector.y, vector.z ); + + // set values to correct vector component + + vector[ u ] = 0; + vector[ v ] = 0; + vector[ w ] = depth > 0 ? 1 : - 1; + + // now apply vector to normal buffer + + normals.push( vector.x, vector.y, vector.z ); + + // uvs + + uvs.push( ix / gridX ); + uvs.push( 1 - ( iy / gridY ) ); + + // counters + + vertexCounter += 1; + + } + + } + + // indices + + // 1. you need three indices to draw a single face + // 2. a single segment consists of two faces + // 3. so we need to generate six (2*3) indices per segment + + for ( let iy = 0; iy < gridY; iy ++ ) { + + for ( let ix = 0; ix < gridX; ix ++ ) { + + const a = numberOfVertices + ix + gridX1 * iy; + const b = numberOfVertices + ix + gridX1 * ( iy + 1 ); + const c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 ); + const d = numberOfVertices + ( ix + 1 ) + gridX1 * iy; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + // increase counter + + groupCount += 6; + + } + + } + + // add a group to the geometry. this will ensure multi material support + + scope.addGroup( groupStart, groupCount, materialIndex ); + + // calculate new start value for groups + + groupStart += groupCount; + + // update total number of vertices + + numberOfVertices += vertexCounter; + + } + + } + +} + +/** + * Uniform Utilities + */ + +function cloneUniforms( src ) { + + const dst = {}; + + for ( const u in src ) { + + dst[ u ] = {}; + + for ( const p in src[ u ] ) { + + const property = src[ u ][ p ]; + + if ( property && ( property.isColor || + property.isMatrix3 || property.isMatrix4 || + property.isVector2 || property.isVector3 || property.isVector4 || + property.isTexture ) ) { + + dst[ u ][ p ] = property.clone(); + + } else if ( Array.isArray( property ) ) { + + dst[ u ][ p ] = property.slice(); + + } else { + + dst[ u ][ p ] = property; + + } + + } + + } + + return dst; + +} + +function mergeUniforms( uniforms ) { + + const merged = {}; + + for ( let u = 0; u < uniforms.length; u ++ ) { + + const tmp = cloneUniforms( uniforms[ u ] ); + + for ( const p in tmp ) { + + merged[ p ] = tmp[ p ]; + + } + + } + + return merged; + +} + +// Legacy + +const UniformsUtils = { clone: cloneUniforms, merge: mergeUniforms }; + +var default_vertex = "void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}"; + +var default_fragment = "void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}"; + +/** + * parameters = { + * defines: { "label" : "value" }, + * uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } }, + * + * fragmentShader: , + * vertexShader: , + * + * wireframe: , + * wireframeLinewidth: , + * + * lights: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + +function ShaderMaterial( parameters ) { + + Material.call( this ); + + this.type = 'ShaderMaterial'; + + this.defines = {}; + this.uniforms = {}; + + this.vertexShader = default_vertex; + this.fragmentShader = default_fragment; + + this.linewidth = 1; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; // set to use scene fog + this.lights = false; // set to use scene lights + this.clipping = false; // set to use user-defined clipping planes + + this.skinning = false; // set to use skinning attribute streams + this.morphTargets = false; // set to use morph targets + this.morphNormals = false; // set to use morph normals + + this.extensions = { + derivatives: false, // set to use derivatives + fragDepth: false, // set to use fragment depth values + drawBuffers: false, // set to use draw buffers + shaderTextureLOD: false // set to use shader texture LOD + }; + + // When rendered geometry doesn't include these attributes but the material does, + // use these default values in WebGL. This avoids errors when buffer data is missing. + this.defaultAttributeValues = { + 'color': [ 1, 1, 1 ], + 'uv': [ 0, 0 ], + 'uv2': [ 0, 0 ] + }; + + this.index0AttributeName = undefined; + this.uniformsNeedUpdate = false; + + this.glslVersion = null; + + if ( parameters !== undefined ) { + + if ( parameters.attributes !== undefined ) { + + console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' ); + + } + + this.setValues( parameters ); + + } + +} + +ShaderMaterial.prototype = Object.create( Material.prototype ); +ShaderMaterial.prototype.constructor = ShaderMaterial; + +ShaderMaterial.prototype.isShaderMaterial = true; + +ShaderMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.fragmentShader = source.fragmentShader; + this.vertexShader = source.vertexShader; + + this.uniforms = cloneUniforms( source.uniforms ); + + this.defines = Object.assign( {}, source.defines ); + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + this.lights = source.lights; + this.clipping = source.clipping; + + this.skinning = source.skinning; + + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + this.extensions = Object.assign( {}, source.extensions ); + + this.glslVersion = source.glslVersion; + + return this; + +}; + +ShaderMaterial.prototype.toJSON = function ( meta ) { + + const data = Material.prototype.toJSON.call( this, meta ); + + data.glslVersion = this.glslVersion; + data.uniforms = {}; + + for ( const name in this.uniforms ) { + + const uniform = this.uniforms[ name ]; + const value = uniform.value; + + if ( value && value.isTexture ) { + + data.uniforms[ name ] = { + type: 't', + value: value.toJSON( meta ).uuid + }; + + } else if ( value && value.isColor ) { + + data.uniforms[ name ] = { + type: 'c', + value: value.getHex() + }; + + } else if ( value && value.isVector2 ) { + + data.uniforms[ name ] = { + type: 'v2', + value: value.toArray() + }; + + } else if ( value && value.isVector3 ) { + + data.uniforms[ name ] = { + type: 'v3', + value: value.toArray() + }; + + } else if ( value && value.isVector4 ) { + + data.uniforms[ name ] = { + type: 'v4', + value: value.toArray() + }; + + } else if ( value && value.isMatrix3 ) { + + data.uniforms[ name ] = { + type: 'm3', + value: value.toArray() + }; + + } else if ( value && value.isMatrix4 ) { + + data.uniforms[ name ] = { + type: 'm4', + value: value.toArray() + }; + + } else { + + data.uniforms[ name ] = { + value: value + }; + + // note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far + + } + + } + + if ( Object.keys( this.defines ).length > 0 ) data.defines = this.defines; + + data.vertexShader = this.vertexShader; + data.fragmentShader = this.fragmentShader; + + const extensions = {}; + + for ( const key in this.extensions ) { + + if ( this.extensions[ key ] === true ) extensions[ key ] = true; + + } + + if ( Object.keys( extensions ).length > 0 ) data.extensions = extensions; + + return data; + +}; + +function Camera() { + + Object3D.call( this ); + + this.type = 'Camera'; + + this.matrixWorldInverse = new Matrix4(); + + this.projectionMatrix = new Matrix4(); + this.projectionMatrixInverse = new Matrix4(); + +} + +Camera.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Camera, + + isCamera: true, + + copy: function ( source, recursive ) { + + Object3D.prototype.copy.call( this, source, recursive ); + + this.matrixWorldInverse.copy( source.matrixWorldInverse ); + + this.projectionMatrix.copy( source.projectionMatrix ); + this.projectionMatrixInverse.copy( source.projectionMatrixInverse ); + + return this; + + }, + + getWorldDirection: function ( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Camera: .getWorldDirection() target is now required' ); + target = new Vector3(); + + } + + this.updateWorldMatrix( true, false ); + + const e = this.matrixWorld.elements; + + return target.set( - e[ 8 ], - e[ 9 ], - e[ 10 ] ).normalize(); + + }, + + updateMatrixWorld: function ( force ) { + + Object3D.prototype.updateMatrixWorld.call( this, force ); + + this.matrixWorldInverse.copy( this.matrixWorld ).invert(); + + }, + + updateWorldMatrix: function ( updateParents, updateChildren ) { + + Object3D.prototype.updateWorldMatrix.call( this, updateParents, updateChildren ); + + this.matrixWorldInverse.copy( this.matrixWorld ).invert(); + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + } + +} ); + +function PerspectiveCamera( fov = 50, aspect = 1, near = 0.1, far = 2000 ) { + + Camera.call( this ); + + this.type = 'PerspectiveCamera'; + + this.fov = fov; + this.zoom = 1; + + this.near = near; + this.far = far; + this.focus = 10; + + this.aspect = aspect; + this.view = null; + + this.filmGauge = 35; // width of the film (default in millimeters) + this.filmOffset = 0; // horizontal film offset (same unit as gauge) + + this.updateProjectionMatrix(); + +} + +PerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), { + + constructor: PerspectiveCamera, + + isPerspectiveCamera: true, + + copy: function ( source, recursive ) { + + Camera.prototype.copy.call( this, source, recursive ); + + this.fov = source.fov; + this.zoom = source.zoom; + + this.near = source.near; + this.far = source.far; + this.focus = source.focus; + + this.aspect = source.aspect; + this.view = source.view === null ? null : Object.assign( {}, source.view ); + + this.filmGauge = source.filmGauge; + this.filmOffset = source.filmOffset; + + return this; + + }, + + /** + * Sets the FOV by focal length in respect to the current .filmGauge. + * + * The default film gauge is 35, so that the focal length can be specified for + * a 35mm (full frame) camera. + * + * Values for focal length and film gauge must have the same unit. + */ + setFocalLength: function ( focalLength ) { + + // see http://www.bobatkins.com/photography/technical/field_of_view.html + const vExtentSlope = 0.5 * this.getFilmHeight() / focalLength; + + this.fov = MathUtils.RAD2DEG * 2 * Math.atan( vExtentSlope ); + this.updateProjectionMatrix(); + + }, + + /** + * Calculates the focal length from the current .fov and .filmGauge. + */ + getFocalLength: function () { + + const vExtentSlope = Math.tan( MathUtils.DEG2RAD * 0.5 * this.fov ); + + return 0.5 * this.getFilmHeight() / vExtentSlope; + + }, + + getEffectiveFOV: function () { + + return MathUtils.RAD2DEG * 2 * Math.atan( + Math.tan( MathUtils.DEG2RAD * 0.5 * this.fov ) / this.zoom ); + + }, + + getFilmWidth: function () { + + // film not completely covered in portrait format (aspect < 1) + return this.filmGauge * Math.min( this.aspect, 1 ); + + }, + + getFilmHeight: function () { + + // film not completely covered in landscape format (aspect > 1) + return this.filmGauge / Math.max( this.aspect, 1 ); + + }, + + /** + * Sets an offset in a larger frustum. This is useful for multi-window or + * multi-monitor/multi-machine setups. + * + * For example, if you have 3x2 monitors and each monitor is 1920x1080 and + * the monitors are in grid like this + * + * +---+---+---+ + * | A | B | C | + * +---+---+---+ + * | D | E | F | + * +---+---+---+ + * + * then for each monitor you would call it like this + * + * const w = 1920; + * const h = 1080; + * const fullWidth = w * 3; + * const fullHeight = h * 2; + * + * --A-- + * camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h ); + * --B-- + * camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h ); + * --C-- + * camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h ); + * --D-- + * camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h ); + * --E-- + * camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h ); + * --F-- + * camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h ); + * + * Note there is no reason monitors have to be the same size or in a grid. + */ + setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) { + + this.aspect = fullWidth / fullHeight; + + if ( this.view === null ) { + + this.view = { + enabled: true, + fullWidth: 1, + fullHeight: 1, + offsetX: 0, + offsetY: 0, + width: 1, + height: 1 + }; + + } + + this.view.enabled = true; + this.view.fullWidth = fullWidth; + this.view.fullHeight = fullHeight; + this.view.offsetX = x; + this.view.offsetY = y; + this.view.width = width; + this.view.height = height; + + this.updateProjectionMatrix(); + + }, + + clearViewOffset: function () { + + if ( this.view !== null ) { + + this.view.enabled = false; + + } + + this.updateProjectionMatrix(); + + }, + + updateProjectionMatrix: function () { + + const near = this.near; + let top = near * Math.tan( MathUtils.DEG2RAD * 0.5 * this.fov ) / this.zoom; + let height = 2 * top; + let width = this.aspect * height; + let left = - 0.5 * width; + const view = this.view; + + if ( this.view !== null && this.view.enabled ) { + + const fullWidth = view.fullWidth, + fullHeight = view.fullHeight; + + left += view.offsetX * width / fullWidth; + top -= view.offsetY * height / fullHeight; + width *= view.width / fullWidth; + height *= view.height / fullHeight; + + } + + const skew = this.filmOffset; + if ( skew !== 0 ) left += near * skew / this.getFilmWidth(); + + this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far ); + + this.projectionMatrixInverse.copy( this.projectionMatrix ).invert(); + + }, + + toJSON: function ( meta ) { + + const data = Object3D.prototype.toJSON.call( this, meta ); + + data.object.fov = this.fov; + data.object.zoom = this.zoom; + + data.object.near = this.near; + data.object.far = this.far; + data.object.focus = this.focus; + + data.object.aspect = this.aspect; + + if ( this.view !== null ) data.object.view = Object.assign( {}, this.view ); + + data.object.filmGauge = this.filmGauge; + data.object.filmOffset = this.filmOffset; + + return data; + + } + +} ); + +const fov = 90, aspect = 1; + +function CubeCamera( near, far, renderTarget ) { + + Object3D.call( this ); + + this.type = 'CubeCamera'; + + if ( renderTarget.isWebGLCubeRenderTarget !== true ) { + + console.error( 'THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.' ); + return; + + } + + this.renderTarget = renderTarget; + + const cameraPX = new PerspectiveCamera( fov, aspect, near, far ); + cameraPX.layers = this.layers; + cameraPX.up.set( 0, - 1, 0 ); + cameraPX.lookAt( new Vector3( 1, 0, 0 ) ); + this.add( cameraPX ); + + const cameraNX = new PerspectiveCamera( fov, aspect, near, far ); + cameraNX.layers = this.layers; + cameraNX.up.set( 0, - 1, 0 ); + cameraNX.lookAt( new Vector3( - 1, 0, 0 ) ); + this.add( cameraNX ); + + const cameraPY = new PerspectiveCamera( fov, aspect, near, far ); + cameraPY.layers = this.layers; + cameraPY.up.set( 0, 0, 1 ); + cameraPY.lookAt( new Vector3( 0, 1, 0 ) ); + this.add( cameraPY ); + + const cameraNY = new PerspectiveCamera( fov, aspect, near, far ); + cameraNY.layers = this.layers; + cameraNY.up.set( 0, 0, - 1 ); + cameraNY.lookAt( new Vector3( 0, - 1, 0 ) ); + this.add( cameraNY ); + + const cameraPZ = new PerspectiveCamera( fov, aspect, near, far ); + cameraPZ.layers = this.layers; + cameraPZ.up.set( 0, - 1, 0 ); + cameraPZ.lookAt( new Vector3( 0, 0, 1 ) ); + this.add( cameraPZ ); + + const cameraNZ = new PerspectiveCamera( fov, aspect, near, far ); + cameraNZ.layers = this.layers; + cameraNZ.up.set( 0, - 1, 0 ); + cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) ); + this.add( cameraNZ ); + + this.update = function ( renderer, scene ) { + + if ( this.parent === null ) this.updateMatrixWorld(); + + const currentXrEnabled = renderer.xr.enabled; + const currentRenderTarget = renderer.getRenderTarget(); + + renderer.xr.enabled = false; + + const generateMipmaps = renderTarget.texture.generateMipmaps; + + renderTarget.texture.generateMipmaps = false; + + renderer.setRenderTarget( renderTarget, 0 ); + renderer.render( scene, cameraPX ); + + renderer.setRenderTarget( renderTarget, 1 ); + renderer.render( scene, cameraNX ); + + renderer.setRenderTarget( renderTarget, 2 ); + renderer.render( scene, cameraPY ); + + renderer.setRenderTarget( renderTarget, 3 ); + renderer.render( scene, cameraNY ); + + renderer.setRenderTarget( renderTarget, 4 ); + renderer.render( scene, cameraPZ ); + + renderTarget.texture.generateMipmaps = generateMipmaps; + + renderer.setRenderTarget( renderTarget, 5 ); + renderer.render( scene, cameraNZ ); + + renderer.setRenderTarget( currentRenderTarget ); + + renderer.xr.enabled = currentXrEnabled; + + }; + +} + +CubeCamera.prototype = Object.create( Object3D.prototype ); +CubeCamera.prototype.constructor = CubeCamera; + +function CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) { + + images = images !== undefined ? images : []; + mapping = mapping !== undefined ? mapping : CubeReflectionMapping; + format = format !== undefined ? format : RGBFormat; + + Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.flipY = false; + + // Why CubeTexture._needsFlipEnvMap is necessary: + // + // By convention -- likely based on the RenderMan spec from the 1990's -- cube maps are specified by WebGL (and three.js) + // in a coordinate system in which positive-x is to the right when looking up the positive-z axis -- in other words, + // in a left-handed coordinate system. By continuing this convention, preexisting cube maps continued to render correctly. + + // three.js uses a right-handed coordinate system. So environment maps used in three.js appear to have px and nx swapped + // and the flag _needsFlipEnvMap controls this conversion. The flip is not required (and thus _needsFlipEnvMap is set to false) + // when using WebGLCubeRenderTarget.texture as a cube texture. + + this._needsFlipEnvMap = true; + +} + +CubeTexture.prototype = Object.create( Texture.prototype ); +CubeTexture.prototype.constructor = CubeTexture; + +CubeTexture.prototype.isCubeTexture = true; + +Object.defineProperty( CubeTexture.prototype, 'images', { + + get: function () { + + return this.image; + + }, + + set: function ( value ) { + + this.image = value; + + } + +} ); + +function WebGLCubeRenderTarget( size, options, dummy ) { + + if ( Number.isInteger( options ) ) { + + console.warn( 'THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )' ); + + options = dummy; + + } + + WebGLRenderTarget.call( this, size, size, options ); + + options = options || {}; + + this.texture = new CubeTexture( undefined, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding ); + + this.texture._needsFlipEnvMap = false; + +} + +WebGLCubeRenderTarget.prototype = Object.create( WebGLRenderTarget.prototype ); +WebGLCubeRenderTarget.prototype.constructor = WebGLCubeRenderTarget; + +WebGLCubeRenderTarget.prototype.isWebGLCubeRenderTarget = true; + +WebGLCubeRenderTarget.prototype.fromEquirectangularTexture = function ( renderer, texture ) { + + this.texture.type = texture.type; + this.texture.format = RGBAFormat; // see #18859 + this.texture.encoding = texture.encoding; + + this.texture.generateMipmaps = texture.generateMipmaps; + this.texture.minFilter = texture.minFilter; + this.texture.magFilter = texture.magFilter; + + const shader = { + + uniforms: { + tEquirect: { value: null }, + }, + + vertexShader: /* glsl */` + + varying vec3 vWorldDirection; + + vec3 transformDirection( in vec3 dir, in mat4 matrix ) { + + return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz ); + + } + + void main() { + + vWorldDirection = transformDirection( position, modelMatrix ); + + #include + #include + + } + `, + + fragmentShader: /* glsl */` + + uniform sampler2D tEquirect; + + varying vec3 vWorldDirection; + + #include + + void main() { + + vec3 direction = normalize( vWorldDirection ); + + vec2 sampleUV = equirectUv( direction ); + + gl_FragColor = texture2D( tEquirect, sampleUV ); + + } + ` + }; + + const geometry = new BoxBufferGeometry( 5, 5, 5 ); + + const material = new ShaderMaterial( { + + name: 'CubemapFromEquirect', + + uniforms: cloneUniforms( shader.uniforms ), + vertexShader: shader.vertexShader, + fragmentShader: shader.fragmentShader, + side: BackSide, + blending: NoBlending + + } ); + + material.uniforms.tEquirect.value = texture; + + const mesh = new Mesh( geometry, material ); + + const currentMinFilter = texture.minFilter; + + // Avoid blurred poles + if ( texture.minFilter === LinearMipmapLinearFilter ) texture.minFilter = LinearFilter; + + const camera = new CubeCamera( 1, 10, this ); + camera.update( renderer, mesh ); + + texture.minFilter = currentMinFilter; + + mesh.geometry.dispose(); + mesh.material.dispose(); + + return this; + +}; + +WebGLCubeRenderTarget.prototype.clear = function ( renderer, color, depth, stencil ) { + + const currentRenderTarget = renderer.getRenderTarget(); + + for ( let i = 0; i < 6; i ++ ) { + + renderer.setRenderTarget( this, i ); + + renderer.clear( color, depth, stencil ); + + } + + renderer.setRenderTarget( currentRenderTarget ); + +}; + +function DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) { + + Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.image = { data: data || null, width: width || 1, height: height || 1 }; + + this.magFilter = magFilter !== undefined ? magFilter : NearestFilter; + this.minFilter = minFilter !== undefined ? minFilter : NearestFilter; + + this.generateMipmaps = false; + this.flipY = false; + this.unpackAlignment = 1; + + this.needsUpdate = true; + +} + +DataTexture.prototype = Object.create( Texture.prototype ); +DataTexture.prototype.constructor = DataTexture; + +DataTexture.prototype.isDataTexture = true; + +const _sphere$1 = /*@__PURE__*/ new Sphere(); +const _vector$5 = /*@__PURE__*/ new Vector3(); + +class Frustum { + + constructor( p0, p1, p2, p3, p4, p5 ) { + + this.planes = [ + + ( p0 !== undefined ) ? p0 : new Plane(), + ( p1 !== undefined ) ? p1 : new Plane(), + ( p2 !== undefined ) ? p2 : new Plane(), + ( p3 !== undefined ) ? p3 : new Plane(), + ( p4 !== undefined ) ? p4 : new Plane(), + ( p5 !== undefined ) ? p5 : new Plane() + + ]; + + } + + set( p0, p1, p2, p3, p4, p5 ) { + + const planes = this.planes; + + planes[ 0 ].copy( p0 ); + planes[ 1 ].copy( p1 ); + planes[ 2 ].copy( p2 ); + planes[ 3 ].copy( p3 ); + planes[ 4 ].copy( p4 ); + planes[ 5 ].copy( p5 ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( frustum ) { + + const planes = this.planes; + + for ( let i = 0; i < 6; i ++ ) { + + planes[ i ].copy( frustum.planes[ i ] ); + + } + + return this; + + } + + setFromProjectionMatrix( m ) { + + const planes = this.planes; + const me = m.elements; + const me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ]; + const me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ]; + const me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ]; + const me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ]; + + planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize(); + planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize(); + planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize(); + planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize(); + planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize(); + planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize(); + + return this; + + } + + intersectsObject( object ) { + + const geometry = object.geometry; + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + _sphere$1.copy( geometry.boundingSphere ).applyMatrix4( object.matrixWorld ); + + return this.intersectsSphere( _sphere$1 ); + + } + + intersectsSprite( sprite ) { + + _sphere$1.center.set( 0, 0, 0 ); + _sphere$1.radius = 0.7071067811865476; + _sphere$1.applyMatrix4( sprite.matrixWorld ); + + return this.intersectsSphere( _sphere$1 ); + + } + + intersectsSphere( sphere ) { + + const planes = this.planes; + const center = sphere.center; + const negRadius = - sphere.radius; + + for ( let i = 0; i < 6; i ++ ) { + + const distance = planes[ i ].distanceToPoint( center ); + + if ( distance < negRadius ) { + + return false; + + } + + } + + return true; + + } + + intersectsBox( box ) { + + const planes = this.planes; + + for ( let i = 0; i < 6; i ++ ) { + + const plane = planes[ i ]; + + // corner at max distance + + _vector$5.x = plane.normal.x > 0 ? box.max.x : box.min.x; + _vector$5.y = plane.normal.y > 0 ? box.max.y : box.min.y; + _vector$5.z = plane.normal.z > 0 ? box.max.z : box.min.z; + + if ( plane.distanceToPoint( _vector$5 ) < 0 ) { + + return false; + + } + + } + + return true; + + } + + containsPoint( point ) { + + const planes = this.planes; + + for ( let i = 0; i < 6; i ++ ) { + + if ( planes[ i ].distanceToPoint( point ) < 0 ) { + + return false; + + } + + } + + return true; + + } + +} + +function WebGLAnimation() { + + let context = null; + let isAnimating = false; + let animationLoop = null; + let requestId = null; + + function onAnimationFrame( time, frame ) { + + animationLoop( time, frame ); + + requestId = context.requestAnimationFrame( onAnimationFrame ); + + } + + return { + + start: function () { + + if ( isAnimating === true ) return; + if ( animationLoop === null ) return; + + requestId = context.requestAnimationFrame( onAnimationFrame ); + + isAnimating = true; + + }, + + stop: function () { + + context.cancelAnimationFrame( requestId ); + + isAnimating = false; + + }, + + setAnimationLoop: function ( callback ) { + + animationLoop = callback; + + }, + + setContext: function ( value ) { + + context = value; + + } + + }; + +} + +function WebGLAttributes( gl, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + const buffers = new WeakMap(); + + function createBuffer( attribute, bufferType ) { + + const array = attribute.array; + const usage = attribute.usage; + + const buffer = gl.createBuffer(); + + gl.bindBuffer( bufferType, buffer ); + gl.bufferData( bufferType, array, usage ); + + attribute.onUploadCallback(); + + let type = 5126; + + if ( array instanceof Float32Array ) { + + type = 5126; + + } else if ( array instanceof Float64Array ) { + + console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' ); + + } else if ( array instanceof Uint16Array ) { + + if ( attribute.isFloat16BufferAttribute ) { + + if ( isWebGL2 ) { + + type = 5131; + + } else { + + console.warn( 'THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2.' ); + + } + + } else { + + type = 5123; + + } + + } else if ( array instanceof Int16Array ) { + + type = 5122; + + } else if ( array instanceof Uint32Array ) { + + type = 5125; + + } else if ( array instanceof Int32Array ) { + + type = 5124; + + } else if ( array instanceof Int8Array ) { + + type = 5120; + + } else if ( array instanceof Uint8Array ) { + + type = 5121; + + } + + return { + buffer: buffer, + type: type, + bytesPerElement: array.BYTES_PER_ELEMENT, + version: attribute.version + }; + + } + + function updateBuffer( buffer, attribute, bufferType ) { + + const array = attribute.array; + const updateRange = attribute.updateRange; + + gl.bindBuffer( bufferType, buffer ); + + if ( updateRange.count === - 1 ) { + + // Not using update ranges + + gl.bufferSubData( bufferType, 0, array ); + + } else { + + if ( isWebGL2 ) { + + gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, + array, updateRange.offset, updateRange.count ); + + } else { + + gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT, + array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) ); + + } + + updateRange.count = - 1; // reset range + + } + + } + + // + + function get( attribute ) { + + if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data; + + return buffers.get( attribute ); + + } + + function remove( attribute ) { + + if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data; + + const data = buffers.get( attribute ); + + if ( data ) { + + gl.deleteBuffer( data.buffer ); + + buffers.delete( attribute ); + + } + + } + + function update( attribute, bufferType ) { + + if ( attribute.isGLBufferAttribute ) { + + const cached = buffers.get( attribute ); + + if ( ! cached || cached.version < attribute.version ) { + + buffers.set( attribute, { + buffer: attribute.buffer, + type: attribute.type, + bytesPerElement: attribute.elementSize, + version: attribute.version + } ); + + } + + return; + + } + + if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data; + + const data = buffers.get( attribute ); + + if ( data === undefined ) { + + buffers.set( attribute, createBuffer( attribute, bufferType ) ); + + } else if ( data.version < attribute.version ) { + + updateBuffer( data.buffer, attribute, bufferType ); + + data.version = attribute.version; + + } + + } + + return { + + get: get, + remove: remove, + update: update + + }; + +} + +class PlaneBufferGeometry extends BufferGeometry { + + constructor( width = 1, height = 1, widthSegments = 1, heightSegments = 1 ) { + + super(); + this.type = 'PlaneBufferGeometry'; + + this.parameters = { + width: width, + height: height, + widthSegments: widthSegments, + heightSegments: heightSegments + }; + + const width_half = width / 2; + const height_half = height / 2; + + const gridX = Math.floor( widthSegments ); + const gridY = Math.floor( heightSegments ); + + const gridX1 = gridX + 1; + const gridY1 = gridY + 1; + + const segment_width = width / gridX; + const segment_height = height / gridY; + + // + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + for ( let iy = 0; iy < gridY1; iy ++ ) { + + const y = iy * segment_height - height_half; + + for ( let ix = 0; ix < gridX1; ix ++ ) { + + const x = ix * segment_width - width_half; + + vertices.push( x, - y, 0 ); + + normals.push( 0, 0, 1 ); + + uvs.push( ix / gridX ); + uvs.push( 1 - ( iy / gridY ) ); + + } + + } + + for ( let iy = 0; iy < gridY; iy ++ ) { + + for ( let ix = 0; ix < gridX; ix ++ ) { + + const a = ix + gridX1 * iy; + const b = ix + gridX1 * ( iy + 1 ); + const c = ( ix + 1 ) + gridX1 * ( iy + 1 ); + const d = ( ix + 1 ) + gridX1 * iy; + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + +} + +var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif"; + +var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif"; + +var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif"; + +var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif"; + +var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif"; + +var begin_vertex = "vec3 transformed = vec3( position );"; + +var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif"; + +var bsdfs = "vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif"; + +var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tfDet *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif"; + +var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif"; + +var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif"; + +var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif"; + +var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif"; + +var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif"; + +var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif"; + +var color_pars_vertex = "#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif"; + +var color_vertex = "#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif"; + +var common = "#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}"; + +var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif"; + +var defaultnormal_vertex = "vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif"; + +var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif"; + +var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif"; + +var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif"; + +var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif"; + +var encodings_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );"; + +var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}"; + +var envmap_fragment = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif"; + +var envmap_common_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif"; + +var envmap_pars_fragment = "#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif"; + +var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif"; + +var envmap_vertex = "#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif"; + +var fog_vertex = "#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif"; + +var fog_pars_vertex = "#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif"; + +var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif"; + +var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif"; + +var gradientmap_pars_fragment = "#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}"; + +var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif"; + +var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif"; + +var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif"; + +var lights_pars_begin = "uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif"; + +var envmap_physical_pars_fragment = "#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif"; + +var lights_toon_fragment = "ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;"; + +var lights_toon_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)"; + +var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;"; + +var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)"; + +var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif"; + +var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3( 0, 1, 0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}"; + +var lights_fragment_begin = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif"; + +var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif"; + +var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif"; + +var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif"; + +var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif"; + +var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif"; + +var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif"; + +var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif"; + +var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif"; + +var map_particle_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif"; + +var map_particle_pars_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif"; + +var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif"; + +var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif"; + +var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif"; + +var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif"; + +var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif"; + +var normal_fragment_begin = "#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t\tbitangent = bitangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;"; + +var normal_fragment_maps = "#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif"; + +var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tfloat scale = sign( st1.t * st0.s - st0.t * st1.s );\n\t\tvec3 S = normalize( ( q0 * st1.t - q1 * st0.t ) * scale );\n\t\tvec3 T = normalize( ( - q0 * st1.s + q1 * st0.s ) * scale );\n\t\tvec3 N = normalize( surf_norm );\n\t\tmat3 tsn = mat3( S, T, N );\n\t\tmapN.xy *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\treturn normalize( tsn * mapN );\n\t}\n#endif"; + +var clearcoat_normal_fragment_begin = "#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif"; + +var clearcoat_normal_fragment_maps = "#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN );\n\t#endif\n#endif"; + +var clearcoat_pars_fragment = "#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif"; + +var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}"; + +var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif"; + +var project_vertex = "vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;"; + +var dithering_fragment = "#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif"; + +var dithering_pars_fragment = "#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif"; + +var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif"; + +var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif"; + +var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif"; + +var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif"; + +var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif"; + +var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}"; + +var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif"; + +var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif"; + +var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif"; + +var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif"; + +var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif"; + +var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif"; + +var tonemapping_fragment = "#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif"; + +var tonemapping_pars_fragment = "#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3( 1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108, 1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605, 1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }"; + +var transmissionmap_fragment = "#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif"; + +var transmissionmap_pars_fragment = "#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif"; + +var uv_pars_fragment = "#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif"; + +var uv_pars_vertex = "#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif"; + +var uv_vertex = "#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif"; + +var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif"; + +var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif"; + +var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif"; + +var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif"; + +var background_frag = "uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include \n\t#include \n}"; + +var background_vert = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}"; + +var cube_frag = "#include \nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include \n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include \n\t#include \n}"; + +var cube_vert = "varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n\tgl_Position.z = gl_Position.w;\n}"; + +var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}"; + +var depth_vert = "#include \n#include \n#include \n#include \n#include \n#include \n#include \nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include \n\t#include \n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvHighPrecisionZW = gl_Position.zw;\n}"; + +var distanceRGBA_frag = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main () {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include \n\t#include \n\t#include \n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}"; + +var distanceRGBA_vert = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include \n\t\t#include \n\t\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvWorldPosition = worldPosition.xyz;\n}"; + +var equirect_frag = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include \n\t#include \n}"; + +var equirect_vert = "varying vec3 vWorldDirection;\n#include \nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n}"; + +var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include \n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include \n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshbasic_vert = "#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#ifdef USE_ENVMAP\n\t#include \n\t#include \n\t#include \n\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include \n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include \n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshmatcap_frag = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshmatcap_vert = "#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n}"; + +var meshtoon_frag = "#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshtoon_vert = "#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n}"; + +var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include \n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshphysical_frag = "#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var meshphysical_vert = "#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n}"; + +var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}"; + +var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}"; + +var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var points_vert = "uniform float size;\nuniform float scale;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var shadow_frag = "uniform vec3 color;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include \n\t#include \n\t#include \n}"; + +var shadow_vert = "#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}"; + +var sprite_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n}"; + +var sprite_vert = "uniform float rotation;\nuniform vec2 center;\n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include \n\t#include \n\t#include \n}"; + +const ShaderChunk = { + alphamap_fragment: alphamap_fragment, + alphamap_pars_fragment: alphamap_pars_fragment, + alphatest_fragment: alphatest_fragment, + aomap_fragment: aomap_fragment, + aomap_pars_fragment: aomap_pars_fragment, + begin_vertex: begin_vertex, + beginnormal_vertex: beginnormal_vertex, + bsdfs: bsdfs, + bumpmap_pars_fragment: bumpmap_pars_fragment, + clipping_planes_fragment: clipping_planes_fragment, + clipping_planes_pars_fragment: clipping_planes_pars_fragment, + clipping_planes_pars_vertex: clipping_planes_pars_vertex, + clipping_planes_vertex: clipping_planes_vertex, + color_fragment: color_fragment, + color_pars_fragment: color_pars_fragment, + color_pars_vertex: color_pars_vertex, + color_vertex: color_vertex, + common: common, + cube_uv_reflection_fragment: cube_uv_reflection_fragment, + defaultnormal_vertex: defaultnormal_vertex, + displacementmap_pars_vertex: displacementmap_pars_vertex, + displacementmap_vertex: displacementmap_vertex, + emissivemap_fragment: emissivemap_fragment, + emissivemap_pars_fragment: emissivemap_pars_fragment, + encodings_fragment: encodings_fragment, + encodings_pars_fragment: encodings_pars_fragment, + envmap_fragment: envmap_fragment, + envmap_common_pars_fragment: envmap_common_pars_fragment, + envmap_pars_fragment: envmap_pars_fragment, + envmap_pars_vertex: envmap_pars_vertex, + envmap_physical_pars_fragment: envmap_physical_pars_fragment, + envmap_vertex: envmap_vertex, + fog_vertex: fog_vertex, + fog_pars_vertex: fog_pars_vertex, + fog_fragment: fog_fragment, + fog_pars_fragment: fog_pars_fragment, + gradientmap_pars_fragment: gradientmap_pars_fragment, + lightmap_fragment: lightmap_fragment, + lightmap_pars_fragment: lightmap_pars_fragment, + lights_lambert_vertex: lights_lambert_vertex, + lights_pars_begin: lights_pars_begin, + lights_toon_fragment: lights_toon_fragment, + lights_toon_pars_fragment: lights_toon_pars_fragment, + lights_phong_fragment: lights_phong_fragment, + lights_phong_pars_fragment: lights_phong_pars_fragment, + lights_physical_fragment: lights_physical_fragment, + lights_physical_pars_fragment: lights_physical_pars_fragment, + lights_fragment_begin: lights_fragment_begin, + lights_fragment_maps: lights_fragment_maps, + lights_fragment_end: lights_fragment_end, + logdepthbuf_fragment: logdepthbuf_fragment, + logdepthbuf_pars_fragment: logdepthbuf_pars_fragment, + logdepthbuf_pars_vertex: logdepthbuf_pars_vertex, + logdepthbuf_vertex: logdepthbuf_vertex, + map_fragment: map_fragment, + map_pars_fragment: map_pars_fragment, + map_particle_fragment: map_particle_fragment, + map_particle_pars_fragment: map_particle_pars_fragment, + metalnessmap_fragment: metalnessmap_fragment, + metalnessmap_pars_fragment: metalnessmap_pars_fragment, + morphnormal_vertex: morphnormal_vertex, + morphtarget_pars_vertex: morphtarget_pars_vertex, + morphtarget_vertex: morphtarget_vertex, + normal_fragment_begin: normal_fragment_begin, + normal_fragment_maps: normal_fragment_maps, + normalmap_pars_fragment: normalmap_pars_fragment, + clearcoat_normal_fragment_begin: clearcoat_normal_fragment_begin, + clearcoat_normal_fragment_maps: clearcoat_normal_fragment_maps, + clearcoat_pars_fragment: clearcoat_pars_fragment, + packing: packing, + premultiplied_alpha_fragment: premultiplied_alpha_fragment, + project_vertex: project_vertex, + dithering_fragment: dithering_fragment, + dithering_pars_fragment: dithering_pars_fragment, + roughnessmap_fragment: roughnessmap_fragment, + roughnessmap_pars_fragment: roughnessmap_pars_fragment, + shadowmap_pars_fragment: shadowmap_pars_fragment, + shadowmap_pars_vertex: shadowmap_pars_vertex, + shadowmap_vertex: shadowmap_vertex, + shadowmask_pars_fragment: shadowmask_pars_fragment, + skinbase_vertex: skinbase_vertex, + skinning_pars_vertex: skinning_pars_vertex, + skinning_vertex: skinning_vertex, + skinnormal_vertex: skinnormal_vertex, + specularmap_fragment: specularmap_fragment, + specularmap_pars_fragment: specularmap_pars_fragment, + tonemapping_fragment: tonemapping_fragment, + tonemapping_pars_fragment: tonemapping_pars_fragment, + transmissionmap_fragment: transmissionmap_fragment, + transmissionmap_pars_fragment: transmissionmap_pars_fragment, + uv_pars_fragment: uv_pars_fragment, + uv_pars_vertex: uv_pars_vertex, + uv_vertex: uv_vertex, + uv2_pars_fragment: uv2_pars_fragment, + uv2_pars_vertex: uv2_pars_vertex, + uv2_vertex: uv2_vertex, + worldpos_vertex: worldpos_vertex, + + background_frag: background_frag, + background_vert: background_vert, + cube_frag: cube_frag, + cube_vert: cube_vert, + depth_frag: depth_frag, + depth_vert: depth_vert, + distanceRGBA_frag: distanceRGBA_frag, + distanceRGBA_vert: distanceRGBA_vert, + equirect_frag: equirect_frag, + equirect_vert: equirect_vert, + linedashed_frag: linedashed_frag, + linedashed_vert: linedashed_vert, + meshbasic_frag: meshbasic_frag, + meshbasic_vert: meshbasic_vert, + meshlambert_frag: meshlambert_frag, + meshlambert_vert: meshlambert_vert, + meshmatcap_frag: meshmatcap_frag, + meshmatcap_vert: meshmatcap_vert, + meshtoon_frag: meshtoon_frag, + meshtoon_vert: meshtoon_vert, + meshphong_frag: meshphong_frag, + meshphong_vert: meshphong_vert, + meshphysical_frag: meshphysical_frag, + meshphysical_vert: meshphysical_vert, + normal_frag: normal_frag, + normal_vert: normal_vert, + points_frag: points_frag, + points_vert: points_vert, + shadow_frag: shadow_frag, + shadow_vert: shadow_vert, + sprite_frag: sprite_frag, + sprite_vert: sprite_vert +}; + +/** + * Uniforms library for shared webgl shaders + */ + +const UniformsLib = { + + common: { + + diffuse: { value: new Color( 0xeeeeee ) }, + opacity: { value: 1.0 }, + + map: { value: null }, + uvTransform: { value: new Matrix3() }, + uv2Transform: { value: new Matrix3() }, + + alphaMap: { value: null }, + + }, + + specularmap: { + + specularMap: { value: null }, + + }, + + envmap: { + + envMap: { value: null }, + flipEnvMap: { value: - 1 }, + reflectivity: { value: 1.0 }, + refractionRatio: { value: 0.98 }, + maxMipLevel: { value: 0 } + + }, + + aomap: { + + aoMap: { value: null }, + aoMapIntensity: { value: 1 } + + }, + + lightmap: { + + lightMap: { value: null }, + lightMapIntensity: { value: 1 } + + }, + + emissivemap: { + + emissiveMap: { value: null } + + }, + + bumpmap: { + + bumpMap: { value: null }, + bumpScale: { value: 1 } + + }, + + normalmap: { + + normalMap: { value: null }, + normalScale: { value: new Vector2( 1, 1 ) } + + }, + + displacementmap: { + + displacementMap: { value: null }, + displacementScale: { value: 1 }, + displacementBias: { value: 0 } + + }, + + roughnessmap: { + + roughnessMap: { value: null } + + }, + + metalnessmap: { + + metalnessMap: { value: null } + + }, + + gradientmap: { + + gradientMap: { value: null } + + }, + + fog: { + + fogDensity: { value: 0.00025 }, + fogNear: { value: 1 }, + fogFar: { value: 2000 }, + fogColor: { value: new Color( 0xffffff ) } + + }, + + lights: { + + ambientLightColor: { value: [] }, + + lightProbe: { value: [] }, + + directionalLights: { value: [], properties: { + direction: {}, + color: {} + } }, + + directionalLightShadows: { value: [], properties: { + shadowBias: {}, + shadowNormalBias: {}, + shadowRadius: {}, + shadowMapSize: {} + } }, + + directionalShadowMap: { value: [] }, + directionalShadowMatrix: { value: [] }, + + spotLights: { value: [], properties: { + color: {}, + position: {}, + direction: {}, + distance: {}, + coneCos: {}, + penumbraCos: {}, + decay: {} + } }, + + spotLightShadows: { value: [], properties: { + shadowBias: {}, + shadowNormalBias: {}, + shadowRadius: {}, + shadowMapSize: {} + } }, + + spotShadowMap: { value: [] }, + spotShadowMatrix: { value: [] }, + + pointLights: { value: [], properties: { + color: {}, + position: {}, + decay: {}, + distance: {} + } }, + + pointLightShadows: { value: [], properties: { + shadowBias: {}, + shadowNormalBias: {}, + shadowRadius: {}, + shadowMapSize: {}, + shadowCameraNear: {}, + shadowCameraFar: {} + } }, + + pointShadowMap: { value: [] }, + pointShadowMatrix: { value: [] }, + + hemisphereLights: { value: [], properties: { + direction: {}, + skyColor: {}, + groundColor: {} + } }, + + // TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src + rectAreaLights: { value: [], properties: { + color: {}, + position: {}, + width: {}, + height: {} + } }, + + ltc_1: { value: null }, + ltc_2: { value: null } + + }, + + points: { + + diffuse: { value: new Color( 0xeeeeee ) }, + opacity: { value: 1.0 }, + size: { value: 1.0 }, + scale: { value: 1.0 }, + map: { value: null }, + alphaMap: { value: null }, + uvTransform: { value: new Matrix3() } + + }, + + sprite: { + + diffuse: { value: new Color( 0xeeeeee ) }, + opacity: { value: 1.0 }, + center: { value: new Vector2( 0.5, 0.5 ) }, + rotation: { value: 0.0 }, + map: { value: null }, + alphaMap: { value: null }, + uvTransform: { value: new Matrix3() } + + } + +}; + +const ShaderLib = { + + basic: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.specularmap, + UniformsLib.envmap, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.fog + ] ), + + vertexShader: ShaderChunk.meshbasic_vert, + fragmentShader: ShaderChunk.meshbasic_frag + + }, + + lambert: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.specularmap, + UniformsLib.envmap, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.fog, + UniformsLib.lights, + { + emissive: { value: new Color( 0x000000 ) } + } + ] ), + + vertexShader: ShaderChunk.meshlambert_vert, + fragmentShader: ShaderChunk.meshlambert_frag + + }, + + phong: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.specularmap, + UniformsLib.envmap, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.fog, + UniformsLib.lights, + { + emissive: { value: new Color( 0x000000 ) }, + specular: { value: new Color( 0x111111 ) }, + shininess: { value: 30 } + } + ] ), + + vertexShader: ShaderChunk.meshphong_vert, + fragmentShader: ShaderChunk.meshphong_frag + + }, + + standard: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.envmap, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.roughnessmap, + UniformsLib.metalnessmap, + UniformsLib.fog, + UniformsLib.lights, + { + emissive: { value: new Color( 0x000000 ) }, + roughness: { value: 1.0 }, + metalness: { value: 0.0 }, + envMapIntensity: { value: 1 } // temporary + } + ] ), + + vertexShader: ShaderChunk.meshphysical_vert, + fragmentShader: ShaderChunk.meshphysical_frag + + }, + + toon: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.gradientmap, + UniformsLib.fog, + UniformsLib.lights, + { + emissive: { value: new Color( 0x000000 ) } + } + ] ), + + vertexShader: ShaderChunk.meshtoon_vert, + fragmentShader: ShaderChunk.meshtoon_frag + + }, + + matcap: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.fog, + { + matcap: { value: null } + } + ] ), + + vertexShader: ShaderChunk.meshmatcap_vert, + fragmentShader: ShaderChunk.meshmatcap_frag + + }, + + points: { + + uniforms: mergeUniforms( [ + UniformsLib.points, + UniformsLib.fog + ] ), + + vertexShader: ShaderChunk.points_vert, + fragmentShader: ShaderChunk.points_frag + + }, + + dashed: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.fog, + { + scale: { value: 1 }, + dashSize: { value: 1 }, + totalSize: { value: 2 } + } + ] ), + + vertexShader: ShaderChunk.linedashed_vert, + fragmentShader: ShaderChunk.linedashed_frag + + }, + + depth: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.displacementmap + ] ), + + vertexShader: ShaderChunk.depth_vert, + fragmentShader: ShaderChunk.depth_frag + + }, + + normal: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + { + opacity: { value: 1.0 } + } + ] ), + + vertexShader: ShaderChunk.normal_vert, + fragmentShader: ShaderChunk.normal_frag + + }, + + sprite: { + + uniforms: mergeUniforms( [ + UniformsLib.sprite, + UniformsLib.fog + ] ), + + vertexShader: ShaderChunk.sprite_vert, + fragmentShader: ShaderChunk.sprite_frag + + }, + + background: { + + uniforms: { + uvTransform: { value: new Matrix3() }, + t2D: { value: null }, + }, + + vertexShader: ShaderChunk.background_vert, + fragmentShader: ShaderChunk.background_frag + + }, + /* ------------------------------------------------------------------------- + // Cube map shader + ------------------------------------------------------------------------- */ + + cube: { + + uniforms: mergeUniforms( [ + UniformsLib.envmap, + { + opacity: { value: 1.0 } + } + ] ), + + vertexShader: ShaderChunk.cube_vert, + fragmentShader: ShaderChunk.cube_frag + + }, + + equirect: { + + uniforms: { + tEquirect: { value: null }, + }, + + vertexShader: ShaderChunk.equirect_vert, + fragmentShader: ShaderChunk.equirect_frag + + }, + + distanceRGBA: { + + uniforms: mergeUniforms( [ + UniformsLib.common, + UniformsLib.displacementmap, + { + referencePosition: { value: new Vector3() }, + nearDistance: { value: 1 }, + farDistance: { value: 1000 } + } + ] ), + + vertexShader: ShaderChunk.distanceRGBA_vert, + fragmentShader: ShaderChunk.distanceRGBA_frag + + }, + + shadow: { + + uniforms: mergeUniforms( [ + UniformsLib.lights, + UniformsLib.fog, + { + color: { value: new Color( 0x00000 ) }, + opacity: { value: 1.0 } + }, + ] ), + + vertexShader: ShaderChunk.shadow_vert, + fragmentShader: ShaderChunk.shadow_frag + + } + +}; + +ShaderLib.physical = { + + uniforms: mergeUniforms( [ + ShaderLib.standard.uniforms, + { + clearcoat: { value: 0 }, + clearcoatMap: { value: null }, + clearcoatRoughness: { value: 0 }, + clearcoatRoughnessMap: { value: null }, + clearcoatNormalScale: { value: new Vector2( 1, 1 ) }, + clearcoatNormalMap: { value: null }, + sheen: { value: new Color( 0x000000 ) }, + transmission: { value: 0 }, + transmissionMap: { value: null }, + } + ] ), + + vertexShader: ShaderChunk.meshphysical_vert, + fragmentShader: ShaderChunk.meshphysical_frag + +}; + +function WebGLBackground( renderer, cubemaps, state, objects, premultipliedAlpha ) { + + const clearColor = new Color( 0x000000 ); + let clearAlpha = 0; + + let planeMesh; + let boxMesh; + + let currentBackground = null; + let currentBackgroundVersion = 0; + let currentTonemapping = null; + + function render( renderList, scene, camera, forceClear ) { + + let background = scene.isScene === true ? scene.background : null; + + if ( background && background.isTexture ) { + + background = cubemaps.get( background ); + + } + + // Ignore background in AR + // TODO: Reconsider this. + + const xr = renderer.xr; + const session = xr.getSession && xr.getSession(); + + if ( session && session.environmentBlendMode === 'additive' ) { + + background = null; + + } + + if ( background === null ) { + + setClear( clearColor, clearAlpha ); + + } else if ( background && background.isColor ) { + + setClear( background, 1 ); + forceClear = true; + + } + + if ( renderer.autoClear || forceClear ) { + + renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil ); + + } + + if ( background && ( background.isCubeTexture || background.isWebGLCubeRenderTarget || background.mapping === CubeUVReflectionMapping ) ) { + + if ( boxMesh === undefined ) { + + boxMesh = new Mesh( + new BoxBufferGeometry( 1, 1, 1 ), + new ShaderMaterial( { + name: 'BackgroundCubeMaterial', + uniforms: cloneUniforms( ShaderLib.cube.uniforms ), + vertexShader: ShaderLib.cube.vertexShader, + fragmentShader: ShaderLib.cube.fragmentShader, + side: BackSide, + depthTest: false, + depthWrite: false, + fog: false + } ) + ); + + boxMesh.geometry.deleteAttribute( 'normal' ); + boxMesh.geometry.deleteAttribute( 'uv' ); + + boxMesh.onBeforeRender = function ( renderer, scene, camera ) { + + this.matrixWorld.copyPosition( camera.matrixWorld ); + + }; + + // enable code injection for non-built-in material + Object.defineProperty( boxMesh.material, 'envMap', { + + get: function () { + + return this.uniforms.envMap.value; + + } + + } ); + + objects.update( boxMesh ); + + } + + if ( background.isWebGLCubeRenderTarget ) { + + // TODO Deprecate + + background = background.texture; + + } + + boxMesh.material.uniforms.envMap.value = background; + boxMesh.material.uniforms.flipEnvMap.value = ( background.isCubeTexture && background._needsFlipEnvMap ) ? - 1 : 1; + + if ( currentBackground !== background || + currentBackgroundVersion !== background.version || + currentTonemapping !== renderer.toneMapping ) { + + boxMesh.material.needsUpdate = true; + + currentBackground = background; + currentBackgroundVersion = background.version; + currentTonemapping = renderer.toneMapping; + + } + + // push to the pre-sorted opaque render list + renderList.unshift( boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null ); + + } else if ( background && background.isTexture ) { + + if ( planeMesh === undefined ) { + + planeMesh = new Mesh( + new PlaneBufferGeometry( 2, 2 ), + new ShaderMaterial( { + name: 'BackgroundMaterial', + uniforms: cloneUniforms( ShaderLib.background.uniforms ), + vertexShader: ShaderLib.background.vertexShader, + fragmentShader: ShaderLib.background.fragmentShader, + side: FrontSide, + depthTest: false, + depthWrite: false, + fog: false + } ) + ); + + planeMesh.geometry.deleteAttribute( 'normal' ); + + // enable code injection for non-built-in material + Object.defineProperty( planeMesh.material, 'map', { + + get: function () { + + return this.uniforms.t2D.value; + + } + + } ); + + objects.update( planeMesh ); + + } + + planeMesh.material.uniforms.t2D.value = background; + + if ( background.matrixAutoUpdate === true ) { + + background.updateMatrix(); + + } + + planeMesh.material.uniforms.uvTransform.value.copy( background.matrix ); + + if ( currentBackground !== background || + currentBackgroundVersion !== background.version || + currentTonemapping !== renderer.toneMapping ) { + + planeMesh.material.needsUpdate = true; + + currentBackground = background; + currentBackgroundVersion = background.version; + currentTonemapping = renderer.toneMapping; + + } + + + // push to the pre-sorted opaque render list + renderList.unshift( planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null ); + + } + + } + + function setClear( color, alpha ) { + + state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha ); + + } + + return { + + getClearColor: function () { + + return clearColor; + + }, + setClearColor: function ( color, alpha = 1 ) { + + clearColor.set( color ); + clearAlpha = alpha; + setClear( clearColor, clearAlpha ); + + }, + getClearAlpha: function () { + + return clearAlpha; + + }, + setClearAlpha: function ( alpha ) { + + clearAlpha = alpha; + setClear( clearColor, clearAlpha ); + + }, + render: render + + }; + +} + +function WebGLBindingStates( gl, extensions, attributes, capabilities ) { + + const maxVertexAttributes = gl.getParameter( 34921 ); + + const extension = capabilities.isWebGL2 ? null : extensions.get( 'OES_vertex_array_object' ); + const vaoAvailable = capabilities.isWebGL2 || extension !== null; + + const bindingStates = {}; + + const defaultState = createBindingState( null ); + let currentState = defaultState; + + function setup( object, material, program, geometry, index ) { + + let updateBuffers = false; + + if ( vaoAvailable ) { + + const state = getBindingState( geometry, program, material ); + + if ( currentState !== state ) { + + currentState = state; + bindVertexArrayObject( currentState.object ); + + } + + updateBuffers = needsUpdate( geometry, index ); + + if ( updateBuffers ) saveCache( geometry, index ); + + } else { + + const wireframe = ( material.wireframe === true ); + + if ( currentState.geometry !== geometry.id || + currentState.program !== program.id || + currentState.wireframe !== wireframe ) { + + currentState.geometry = geometry.id; + currentState.program = program.id; + currentState.wireframe = wireframe; + + updateBuffers = true; + + } + + } + + if ( object.isInstancedMesh === true ) { + + updateBuffers = true; + + } + + if ( index !== null ) { + + attributes.update( index, 34963 ); + + } + + if ( updateBuffers ) { + + setupVertexAttributes( object, material, program, geometry ); + + if ( index !== null ) { + + gl.bindBuffer( 34963, attributes.get( index ).buffer ); + + } + + } + + } + + function createVertexArrayObject() { + + if ( capabilities.isWebGL2 ) return gl.createVertexArray(); + + return extension.createVertexArrayOES(); + + } + + function bindVertexArrayObject( vao ) { + + if ( capabilities.isWebGL2 ) return gl.bindVertexArray( vao ); + + return extension.bindVertexArrayOES( vao ); + + } + + function deleteVertexArrayObject( vao ) { + + if ( capabilities.isWebGL2 ) return gl.deleteVertexArray( vao ); + + return extension.deleteVertexArrayOES( vao ); + + } + + function getBindingState( geometry, program, material ) { + + const wireframe = ( material.wireframe === true ); + + let programMap = bindingStates[ geometry.id ]; + + if ( programMap === undefined ) { + + programMap = {}; + bindingStates[ geometry.id ] = programMap; + + } + + let stateMap = programMap[ program.id ]; + + if ( stateMap === undefined ) { + + stateMap = {}; + programMap[ program.id ] = stateMap; + + } + + let state = stateMap[ wireframe ]; + + if ( state === undefined ) { + + state = createBindingState( createVertexArrayObject() ); + stateMap[ wireframe ] = state; + + } + + return state; + + } + + function createBindingState( vao ) { + + const newAttributes = []; + const enabledAttributes = []; + const attributeDivisors = []; + + for ( let i = 0; i < maxVertexAttributes; i ++ ) { + + newAttributes[ i ] = 0; + enabledAttributes[ i ] = 0; + attributeDivisors[ i ] = 0; + + } + + return { + + // for backward compatibility on non-VAO support browser + geometry: null, + program: null, + wireframe: false, + + newAttributes: newAttributes, + enabledAttributes: enabledAttributes, + attributeDivisors: attributeDivisors, + object: vao, + attributes: {}, + index: null + + }; + + } + + function needsUpdate( geometry, index ) { + + const cachedAttributes = currentState.attributes; + const geometryAttributes = geometry.attributes; + + let attributesNum = 0; + + for ( const key in geometryAttributes ) { + + const cachedAttribute = cachedAttributes[ key ]; + const geometryAttribute = geometryAttributes[ key ]; + + if ( cachedAttribute === undefined ) return true; + + if ( cachedAttribute.attribute !== geometryAttribute ) return true; + + if ( cachedAttribute.data !== geometryAttribute.data ) return true; + + attributesNum ++; + + } + + if ( currentState.attributesNum !== attributesNum ) return true; + + if ( currentState.index !== index ) return true; + + return false; + + } + + function saveCache( geometry, index ) { + + const cache = {}; + const attributes = geometry.attributes; + let attributesNum = 0; + + for ( const key in attributes ) { + + const attribute = attributes[ key ]; + + const data = {}; + data.attribute = attribute; + + if ( attribute.data ) { + + data.data = attribute.data; + + } + + cache[ key ] = data; + + attributesNum ++; + + } + + currentState.attributes = cache; + currentState.attributesNum = attributesNum; + + currentState.index = index; + + } + + function initAttributes() { + + const newAttributes = currentState.newAttributes; + + for ( let i = 0, il = newAttributes.length; i < il; i ++ ) { + + newAttributes[ i ] = 0; + + } + + } + + function enableAttribute( attribute ) { + + enableAttributeAndDivisor( attribute, 0 ); + + } + + function enableAttributeAndDivisor( attribute, meshPerAttribute ) { + + const newAttributes = currentState.newAttributes; + const enabledAttributes = currentState.enabledAttributes; + const attributeDivisors = currentState.attributeDivisors; + + newAttributes[ attribute ] = 1; + + if ( enabledAttributes[ attribute ] === 0 ) { + + gl.enableVertexAttribArray( attribute ); + enabledAttributes[ attribute ] = 1; + + } + + if ( attributeDivisors[ attribute ] !== meshPerAttribute ) { + + const extension = capabilities.isWebGL2 ? gl : extensions.get( 'ANGLE_instanced_arrays' ); + + extension[ capabilities.isWebGL2 ? 'vertexAttribDivisor' : 'vertexAttribDivisorANGLE' ]( attribute, meshPerAttribute ); + attributeDivisors[ attribute ] = meshPerAttribute; + + } + + } + + function disableUnusedAttributes() { + + const newAttributes = currentState.newAttributes; + const enabledAttributes = currentState.enabledAttributes; + + for ( let i = 0, il = enabledAttributes.length; i < il; i ++ ) { + + if ( enabledAttributes[ i ] !== newAttributes[ i ] ) { + + gl.disableVertexAttribArray( i ); + enabledAttributes[ i ] = 0; + + } + + } + + } + + function vertexAttribPointer( index, size, type, normalized, stride, offset ) { + + if ( capabilities.isWebGL2 === true && ( type === 5124 || type === 5125 ) ) { + + gl.vertexAttribIPointer( index, size, type, stride, offset ); + + } else { + + gl.vertexAttribPointer( index, size, type, normalized, stride, offset ); + + } + + } + + function setupVertexAttributes( object, material, program, geometry ) { + + if ( capabilities.isWebGL2 === false && ( object.isInstancedMesh || geometry.isInstancedBufferGeometry ) ) { + + if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) return; + + } + + initAttributes(); + + const geometryAttributes = geometry.attributes; + + const programAttributes = program.getAttributes(); + + const materialDefaultAttributeValues = material.defaultAttributeValues; + + for ( const name in programAttributes ) { + + const programAttribute = programAttributes[ name ]; + + if ( programAttribute >= 0 ) { + + const geometryAttribute = geometryAttributes[ name ]; + + if ( geometryAttribute !== undefined ) { + + const normalized = geometryAttribute.normalized; + const size = geometryAttribute.itemSize; + + const attribute = attributes.get( geometryAttribute ); + + // TODO Attribute may not be available on context restore + + if ( attribute === undefined ) continue; + + const buffer = attribute.buffer; + const type = attribute.type; + const bytesPerElement = attribute.bytesPerElement; + + if ( geometryAttribute.isInterleavedBufferAttribute ) { + + const data = geometryAttribute.data; + const stride = data.stride; + const offset = geometryAttribute.offset; + + if ( data && data.isInstancedInterleavedBuffer ) { + + enableAttributeAndDivisor( programAttribute, data.meshPerAttribute ); + + if ( geometry._maxInstanceCount === undefined ) { + + geometry._maxInstanceCount = data.meshPerAttribute * data.count; + + } + + } else { + + enableAttribute( programAttribute ); + + } + + gl.bindBuffer( 34962, buffer ); + vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, offset * bytesPerElement ); + + } else { + + if ( geometryAttribute.isInstancedBufferAttribute ) { + + enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute ); + + if ( geometry._maxInstanceCount === undefined ) { + + geometry._maxInstanceCount = geometryAttribute.meshPerAttribute * geometryAttribute.count; + + } + + } else { + + enableAttribute( programAttribute ); + + } + + gl.bindBuffer( 34962, buffer ); + vertexAttribPointer( programAttribute, size, type, normalized, 0, 0 ); + + } + + } else if ( name === 'instanceMatrix' ) { + + const attribute = attributes.get( object.instanceMatrix ); + + // TODO Attribute may not be available on context restore + + if ( attribute === undefined ) continue; + + const buffer = attribute.buffer; + const type = attribute.type; + + enableAttributeAndDivisor( programAttribute + 0, 1 ); + enableAttributeAndDivisor( programAttribute + 1, 1 ); + enableAttributeAndDivisor( programAttribute + 2, 1 ); + enableAttributeAndDivisor( programAttribute + 3, 1 ); + + gl.bindBuffer( 34962, buffer ); + + gl.vertexAttribPointer( programAttribute + 0, 4, type, false, 64, 0 ); + gl.vertexAttribPointer( programAttribute + 1, 4, type, false, 64, 16 ); + gl.vertexAttribPointer( programAttribute + 2, 4, type, false, 64, 32 ); + gl.vertexAttribPointer( programAttribute + 3, 4, type, false, 64, 48 ); + + } else if ( name === 'instanceColor' ) { + + const attribute = attributes.get( object.instanceColor ); + + // TODO Attribute may not be available on context restore + + if ( attribute === undefined ) continue; + + const buffer = attribute.buffer; + const type = attribute.type; + + enableAttributeAndDivisor( programAttribute, 1 ); + + gl.bindBuffer( 34962, buffer ); + + gl.vertexAttribPointer( programAttribute, 3, type, false, 12, 0 ); + + } else if ( materialDefaultAttributeValues !== undefined ) { + + const value = materialDefaultAttributeValues[ name ]; + + if ( value !== undefined ) { + + switch ( value.length ) { + + case 2: + gl.vertexAttrib2fv( programAttribute, value ); + break; + + case 3: + gl.vertexAttrib3fv( programAttribute, value ); + break; + + case 4: + gl.vertexAttrib4fv( programAttribute, value ); + break; + + default: + gl.vertexAttrib1fv( programAttribute, value ); + + } + + } + + } + + } + + } + + disableUnusedAttributes(); + + } + + function dispose() { + + reset(); + + for ( const geometryId in bindingStates ) { + + const programMap = bindingStates[ geometryId ]; + + for ( const programId in programMap ) { + + const stateMap = programMap[ programId ]; + + for ( const wireframe in stateMap ) { + + deleteVertexArrayObject( stateMap[ wireframe ].object ); + + delete stateMap[ wireframe ]; + + } + + delete programMap[ programId ]; + + } + + delete bindingStates[ geometryId ]; + + } + + } + + function releaseStatesOfGeometry( geometry ) { + + if ( bindingStates[ geometry.id ] === undefined ) return; + + const programMap = bindingStates[ geometry.id ]; + + for ( const programId in programMap ) { + + const stateMap = programMap[ programId ]; + + for ( const wireframe in stateMap ) { + + deleteVertexArrayObject( stateMap[ wireframe ].object ); + + delete stateMap[ wireframe ]; + + } + + delete programMap[ programId ]; + + } + + delete bindingStates[ geometry.id ]; + + } + + function releaseStatesOfProgram( program ) { + + for ( const geometryId in bindingStates ) { + + const programMap = bindingStates[ geometryId ]; + + if ( programMap[ program.id ] === undefined ) continue; + + const stateMap = programMap[ program.id ]; + + for ( const wireframe in stateMap ) { + + deleteVertexArrayObject( stateMap[ wireframe ].object ); + + delete stateMap[ wireframe ]; + + } + + delete programMap[ program.id ]; + + } + + } + + function reset() { + + resetDefaultState(); + + if ( currentState === defaultState ) return; + + currentState = defaultState; + bindVertexArrayObject( currentState.object ); + + } + + // for backward-compatilibity + + function resetDefaultState() { + + defaultState.geometry = null; + defaultState.program = null; + defaultState.wireframe = false; + + } + + return { + + setup: setup, + reset: reset, + resetDefaultState: resetDefaultState, + dispose: dispose, + releaseStatesOfGeometry: releaseStatesOfGeometry, + releaseStatesOfProgram: releaseStatesOfProgram, + + initAttributes: initAttributes, + enableAttribute: enableAttribute, + disableUnusedAttributes: disableUnusedAttributes + + }; + +} + +function WebGLBufferRenderer( gl, extensions, info, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + let mode; + + function setMode( value ) { + + mode = value; + + } + + function render( start, count ) { + + gl.drawArrays( mode, start, count ); + + info.update( count, mode, 1 ); + + } + + function renderInstances( start, count, primcount ) { + + if ( primcount === 0 ) return; + + let extension, methodName; + + if ( isWebGL2 ) { + + extension = gl; + methodName = 'drawArraysInstanced'; + + } else { + + extension = extensions.get( 'ANGLE_instanced_arrays' ); + methodName = 'drawArraysInstancedANGLE'; + + if ( extension === null ) { + + console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' ); + return; + + } + + } + + extension[ methodName ]( mode, start, count, primcount ); + + info.update( count, mode, primcount ); + + } + + // + + this.setMode = setMode; + this.render = render; + this.renderInstances = renderInstances; + +} + +function WebGLCapabilities( gl, extensions, parameters ) { + + let maxAnisotropy; + + function getMaxAnisotropy() { + + if ( maxAnisotropy !== undefined ) return maxAnisotropy; + + const extension = extensions.get( 'EXT_texture_filter_anisotropic' ); + + if ( extension !== null ) { + + maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT ); + + } else { + + maxAnisotropy = 0; + + } + + return maxAnisotropy; + + } + + function getMaxPrecision( precision ) { + + if ( precision === 'highp' ) { + + if ( gl.getShaderPrecisionFormat( 35633, 36338 ).precision > 0 && + gl.getShaderPrecisionFormat( 35632, 36338 ).precision > 0 ) { + + return 'highp'; + + } + + precision = 'mediump'; + + } + + if ( precision === 'mediump' ) { + + if ( gl.getShaderPrecisionFormat( 35633, 36337 ).precision > 0 && + gl.getShaderPrecisionFormat( 35632, 36337 ).precision > 0 ) { + + return 'mediump'; + + } + + } + + return 'lowp'; + + } + + /* eslint-disable no-undef */ + const isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && gl instanceof WebGL2RenderingContext ) || + ( typeof WebGL2ComputeRenderingContext !== 'undefined' && gl instanceof WebGL2ComputeRenderingContext ); + /* eslint-enable no-undef */ + + let precision = parameters.precision !== undefined ? parameters.precision : 'highp'; + const maxPrecision = getMaxPrecision( precision ); + + if ( maxPrecision !== precision ) { + + console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' ); + precision = maxPrecision; + + } + + const logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true; + + const maxTextures = gl.getParameter( 34930 ); + const maxVertexTextures = gl.getParameter( 35660 ); + const maxTextureSize = gl.getParameter( 3379 ); + const maxCubemapSize = gl.getParameter( 34076 ); + + const maxAttributes = gl.getParameter( 34921 ); + const maxVertexUniforms = gl.getParameter( 36347 ); + const maxVaryings = gl.getParameter( 36348 ); + const maxFragmentUniforms = gl.getParameter( 36349 ); + + const vertexTextures = maxVertexTextures > 0; + const floatFragmentTextures = isWebGL2 || !! extensions.get( 'OES_texture_float' ); + const floatVertexTextures = vertexTextures && floatFragmentTextures; + + const maxSamples = isWebGL2 ? gl.getParameter( 36183 ) : 0; + + return { + + isWebGL2: isWebGL2, + + getMaxAnisotropy: getMaxAnisotropy, + getMaxPrecision: getMaxPrecision, + + precision: precision, + logarithmicDepthBuffer: logarithmicDepthBuffer, + + maxTextures: maxTextures, + maxVertexTextures: maxVertexTextures, + maxTextureSize: maxTextureSize, + maxCubemapSize: maxCubemapSize, + + maxAttributes: maxAttributes, + maxVertexUniforms: maxVertexUniforms, + maxVaryings: maxVaryings, + maxFragmentUniforms: maxFragmentUniforms, + + vertexTextures: vertexTextures, + floatFragmentTextures: floatFragmentTextures, + floatVertexTextures: floatVertexTextures, + + maxSamples: maxSamples + + }; + +} + +function WebGLClipping( properties ) { + + const scope = this; + + let globalState = null, + numGlobalPlanes = 0, + localClippingEnabled = false, + renderingShadows = false; + + const plane = new Plane(), + viewNormalMatrix = new Matrix3(), + + uniform = { value: null, needsUpdate: false }; + + this.uniform = uniform; + this.numPlanes = 0; + this.numIntersection = 0; + + this.init = function ( planes, enableLocalClipping, camera ) { + + const enabled = + planes.length !== 0 || + enableLocalClipping || + // enable state of previous frame - the clipping code has to + // run another frame in order to reset the state: + numGlobalPlanes !== 0 || + localClippingEnabled; + + localClippingEnabled = enableLocalClipping; + + globalState = projectPlanes( planes, camera, 0 ); + numGlobalPlanes = planes.length; + + return enabled; + + }; + + this.beginShadows = function () { + + renderingShadows = true; + projectPlanes( null ); + + }; + + this.endShadows = function () { + + renderingShadows = false; + resetGlobalState(); + + }; + + this.setState = function ( material, camera, useCache ) { + + const planes = material.clippingPlanes, + clipIntersection = material.clipIntersection, + clipShadows = material.clipShadows; + + const materialProperties = properties.get( material ); + + if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) { + + // there's no local clipping + + if ( renderingShadows ) { + + // there's no global clipping + + projectPlanes( null ); + + } else { + + resetGlobalState(); + + } + + } else { + + const nGlobal = renderingShadows ? 0 : numGlobalPlanes, + lGlobal = nGlobal * 4; + + let dstArray = materialProperties.clippingState || null; + + uniform.value = dstArray; // ensure unique state + + dstArray = projectPlanes( planes, camera, lGlobal, useCache ); + + for ( let i = 0; i !== lGlobal; ++ i ) { + + dstArray[ i ] = globalState[ i ]; + + } + + materialProperties.clippingState = dstArray; + this.numIntersection = clipIntersection ? this.numPlanes : 0; + this.numPlanes += nGlobal; + + } + + + }; + + function resetGlobalState() { + + if ( uniform.value !== globalState ) { + + uniform.value = globalState; + uniform.needsUpdate = numGlobalPlanes > 0; + + } + + scope.numPlanes = numGlobalPlanes; + scope.numIntersection = 0; + + } + + function projectPlanes( planes, camera, dstOffset, skipTransform ) { + + const nPlanes = planes !== null ? planes.length : 0; + let dstArray = null; + + if ( nPlanes !== 0 ) { + + dstArray = uniform.value; + + if ( skipTransform !== true || dstArray === null ) { + + const flatSize = dstOffset + nPlanes * 4, + viewMatrix = camera.matrixWorldInverse; + + viewNormalMatrix.getNormalMatrix( viewMatrix ); + + if ( dstArray === null || dstArray.length < flatSize ) { + + dstArray = new Float32Array( flatSize ); + + } + + for ( let i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) { + + plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix ); + + plane.normal.toArray( dstArray, i4 ); + dstArray[ i4 + 3 ] = plane.constant; + + } + + } + + uniform.value = dstArray; + uniform.needsUpdate = true; + + } + + scope.numPlanes = nPlanes; + scope.numIntersection = 0; + + return dstArray; + + } + +} + +function WebGLCubeMaps( renderer ) { + + let cubemaps = new WeakMap(); + + function mapTextureMapping( texture, mapping ) { + + if ( mapping === EquirectangularReflectionMapping ) { + + texture.mapping = CubeReflectionMapping; + + } else if ( mapping === EquirectangularRefractionMapping ) { + + texture.mapping = CubeRefractionMapping; + + } + + return texture; + + } + + function get( texture ) { + + if ( texture && texture.isTexture ) { + + const mapping = texture.mapping; + + if ( mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping ) { + + if ( cubemaps.has( texture ) ) { + + const cubemap = cubemaps.get( texture ).texture; + return mapTextureMapping( cubemap, texture.mapping ); + + } else { + + const image = texture.image; + + if ( image && image.height > 0 ) { + + const currentRenderList = renderer.getRenderList(); + const currentRenderTarget = renderer.getRenderTarget(); + + const renderTarget = new WebGLCubeRenderTarget( image.height / 2 ); + renderTarget.fromEquirectangularTexture( renderer, texture ); + cubemaps.set( texture, renderTarget ); + + renderer.setRenderTarget( currentRenderTarget ); + renderer.setRenderList( currentRenderList ); + + texture.addEventListener( 'dispose', onTextureDispose ); + + return mapTextureMapping( renderTarget.texture, texture.mapping ); + + } else { + + // image not yet ready. try the conversion next frame + + return null; + + } + + } + + } + + } + + return texture; + + } + + function onTextureDispose( event ) { + + const texture = event.target; + + texture.removeEventListener( 'dispose', onTextureDispose ); + + const cubemap = cubemaps.get( texture ); + + if ( cubemap !== undefined ) { + + cubemaps.delete( texture ); + cubemap.dispose(); + + } + + } + + function dispose() { + + cubemaps = new WeakMap(); + + } + + return { + get: get, + dispose: dispose + }; + +} + +function WebGLExtensions( gl ) { + + const extensions = {}; + + return { + + has: function ( name ) { + + if ( extensions[ name ] !== undefined ) { + + return extensions[ name ] !== null; + + } + + let extension; + + switch ( name ) { + + case 'WEBGL_depth_texture': + extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' ); + break; + + case 'EXT_texture_filter_anisotropic': + extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' ); + break; + + case 'WEBGL_compressed_texture_s3tc': + extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' ); + break; + + case 'WEBGL_compressed_texture_pvrtc': + extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' ); + break; + + default: + extension = gl.getExtension( name ); + + } + + extensions[ name ] = extension; + + return extension !== null; + + }, + + get: function ( name ) { + + if ( ! this.has( name ) ) { + + console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' ); + + } + + return extensions[ name ]; + + } + + }; + +} + +function WebGLGeometries( gl, attributes, info, bindingStates ) { + + const geometries = new WeakMap(); + const wireframeAttributes = new WeakMap(); + + function onGeometryDispose( event ) { + + const geometry = event.target; + const buffergeometry = geometries.get( geometry ); + + if ( buffergeometry.index !== null ) { + + attributes.remove( buffergeometry.index ); + + } + + for ( const name in buffergeometry.attributes ) { + + attributes.remove( buffergeometry.attributes[ name ] ); + + } + + geometry.removeEventListener( 'dispose', onGeometryDispose ); + + geometries.delete( geometry ); + + const attribute = wireframeAttributes.get( buffergeometry ); + + if ( attribute ) { + + attributes.remove( attribute ); + wireframeAttributes.delete( buffergeometry ); + + } + + bindingStates.releaseStatesOfGeometry( buffergeometry ); + + if ( geometry.isInstancedBufferGeometry === true ) { + + delete geometry._maxInstanceCount; + + } + + // + + info.memory.geometries --; + + } + + function get( object, geometry ) { + + let buffergeometry = geometries.get( geometry ); + + if ( buffergeometry ) return buffergeometry; + + geometry.addEventListener( 'dispose', onGeometryDispose ); + + if ( geometry.isBufferGeometry ) { + + buffergeometry = geometry; + + } else if ( geometry.isGeometry ) { + + if ( geometry._bufferGeometry === undefined ) { + + geometry._bufferGeometry = new BufferGeometry().setFromObject( object ); + + } + + buffergeometry = geometry._bufferGeometry; + + } + + geometries.set( geometry, buffergeometry ); + + info.memory.geometries ++; + + return buffergeometry; + + } + + function update( geometry ) { + + const geometryAttributes = geometry.attributes; + + // Updating index buffer in VAO now. See WebGLBindingStates. + + for ( const name in geometryAttributes ) { + + attributes.update( geometryAttributes[ name ], 34962 ); + + } + + // morph targets + + const morphAttributes = geometry.morphAttributes; + + for ( const name in morphAttributes ) { + + const array = morphAttributes[ name ]; + + for ( let i = 0, l = array.length; i < l; i ++ ) { + + attributes.update( array[ i ], 34962 ); + + } + + } + + } + + function updateWireframeAttribute( geometry ) { + + const indices = []; + + const geometryIndex = geometry.index; + const geometryPosition = geometry.attributes.position; + let version = 0; + + if ( geometryIndex !== null ) { + + const array = geometryIndex.array; + version = geometryIndex.version; + + for ( let i = 0, l = array.length; i < l; i += 3 ) { + + const a = array[ i + 0 ]; + const b = array[ i + 1 ]; + const c = array[ i + 2 ]; + + indices.push( a, b, b, c, c, a ); + + } + + } else { + + const array = geometryPosition.array; + version = geometryPosition.version; + + for ( let i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) { + + const a = i + 0; + const b = i + 1; + const c = i + 2; + + indices.push( a, b, b, c, c, a ); + + } + + } + + const attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 ); + attribute.version = version; + + // Updating index buffer in VAO now. See WebGLBindingStates + + // + + const previousAttribute = wireframeAttributes.get( geometry ); + + if ( previousAttribute ) attributes.remove( previousAttribute ); + + // + + wireframeAttributes.set( geometry, attribute ); + + } + + function getWireframeAttribute( geometry ) { + + const currentAttribute = wireframeAttributes.get( geometry ); + + if ( currentAttribute ) { + + const geometryIndex = geometry.index; + + if ( geometryIndex !== null ) { + + // if the attribute is obsolete, create a new one + + if ( currentAttribute.version < geometryIndex.version ) { + + updateWireframeAttribute( geometry ); + + } + + } + + } else { + + updateWireframeAttribute( geometry ); + + } + + return wireframeAttributes.get( geometry ); + + } + + return { + + get: get, + update: update, + + getWireframeAttribute: getWireframeAttribute + + }; + +} + +function WebGLIndexedBufferRenderer( gl, extensions, info, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + let mode; + + function setMode( value ) { + + mode = value; + + } + + let type, bytesPerElement; + + function setIndex( value ) { + + type = value.type; + bytesPerElement = value.bytesPerElement; + + } + + function render( start, count ) { + + gl.drawElements( mode, count, type, start * bytesPerElement ); + + info.update( count, mode, 1 ); + + } + + function renderInstances( start, count, primcount ) { + + if ( primcount === 0 ) return; + + let extension, methodName; + + if ( isWebGL2 ) { + + extension = gl; + methodName = 'drawElementsInstanced'; + + } else { + + extension = extensions.get( 'ANGLE_instanced_arrays' ); + methodName = 'drawElementsInstancedANGLE'; + + if ( extension === null ) { + + console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' ); + return; + + } + + } + + extension[ methodName ]( mode, count, type, start * bytesPerElement, primcount ); + + info.update( count, mode, primcount ); + + } + + // + + this.setMode = setMode; + this.setIndex = setIndex; + this.render = render; + this.renderInstances = renderInstances; + +} + +function WebGLInfo( gl ) { + + const memory = { + geometries: 0, + textures: 0 + }; + + const render = { + frame: 0, + calls: 0, + triangles: 0, + points: 0, + lines: 0 + }; + + function update( count, mode, instanceCount ) { + + render.calls ++; + + switch ( mode ) { + + case 4: + render.triangles += instanceCount * ( count / 3 ); + break; + + case 1: + render.lines += instanceCount * ( count / 2 ); + break; + + case 3: + render.lines += instanceCount * ( count - 1 ); + break; + + case 2: + render.lines += instanceCount * count; + break; + + case 0: + render.points += instanceCount * count; + break; + + default: + console.error( 'THREE.WebGLInfo: Unknown draw mode:', mode ); + break; + + } + + } + + function reset() { + + render.frame ++; + render.calls = 0; + render.triangles = 0; + render.points = 0; + render.lines = 0; + + } + + return { + memory: memory, + render: render, + programs: null, + autoReset: true, + reset: reset, + update: update + }; + +} + +function numericalSort( a, b ) { + + return a[ 0 ] - b[ 0 ]; + +} + +function absNumericalSort( a, b ) { + + return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] ); + +} + +function WebGLMorphtargets( gl ) { + + const influencesList = {}; + const morphInfluences = new Float32Array( 8 ); + + const workInfluences = []; + + for ( let i = 0; i < 8; i ++ ) { + + workInfluences[ i ] = [ i, 0 ]; + + } + + function update( object, geometry, material, program ) { + + const objectInfluences = object.morphTargetInfluences; + + // When object doesn't have morph target influences defined, we treat it as a 0-length array + // This is important to make sure we set up morphTargetBaseInfluence / morphTargetInfluences + + const length = objectInfluences === undefined ? 0 : objectInfluences.length; + + let influences = influencesList[ geometry.id ]; + + if ( influences === undefined ) { + + // initialise list + + influences = []; + + for ( let i = 0; i < length; i ++ ) { + + influences[ i ] = [ i, 0 ]; + + } + + influencesList[ geometry.id ] = influences; + + } + + // Collect influences + + for ( let i = 0; i < length; i ++ ) { + + const influence = influences[ i ]; + + influence[ 0 ] = i; + influence[ 1 ] = objectInfluences[ i ]; + + } + + influences.sort( absNumericalSort ); + + for ( let i = 0; i < 8; i ++ ) { + + if ( i < length && influences[ i ][ 1 ] ) { + + workInfluences[ i ][ 0 ] = influences[ i ][ 0 ]; + workInfluences[ i ][ 1 ] = influences[ i ][ 1 ]; + + } else { + + workInfluences[ i ][ 0 ] = Number.MAX_SAFE_INTEGER; + workInfluences[ i ][ 1 ] = 0; + + } + + } + + workInfluences.sort( numericalSort ); + + const morphTargets = material.morphTargets && geometry.morphAttributes.position; + const morphNormals = material.morphNormals && geometry.morphAttributes.normal; + + let morphInfluencesSum = 0; + + for ( let i = 0; i < 8; i ++ ) { + + const influence = workInfluences[ i ]; + const index = influence[ 0 ]; + const value = influence[ 1 ]; + + if ( index !== Number.MAX_SAFE_INTEGER && value ) { + + if ( morphTargets && geometry.getAttribute( 'morphTarget' + i ) !== morphTargets[ index ] ) { + + geometry.setAttribute( 'morphTarget' + i, morphTargets[ index ] ); + + } + + if ( morphNormals && geometry.getAttribute( 'morphNormal' + i ) !== morphNormals[ index ] ) { + + geometry.setAttribute( 'morphNormal' + i, morphNormals[ index ] ); + + } + + morphInfluences[ i ] = value; + morphInfluencesSum += value; + + } else { + + if ( morphTargets && geometry.hasAttribute( 'morphTarget' + i ) === true ) { + + geometry.deleteAttribute( 'morphTarget' + i ); + + } + + if ( morphNormals && geometry.hasAttribute( 'morphNormal' + i ) === true ) { + + geometry.deleteAttribute( 'morphNormal' + i ); + + } + + morphInfluences[ i ] = 0; + + } + + } + + // GLSL shader uses formula baseinfluence * base + sum(target * influence) + // This allows us to switch between absolute morphs and relative morphs without changing shader code + // When baseinfluence = 1 - sum(influence), the above is equivalent to sum((target - base) * influence) + const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum; + + program.getUniforms().setValue( gl, 'morphTargetBaseInfluence', morphBaseInfluence ); + program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences ); + + } + + return { + + update: update + + }; + +} + +function WebGLObjects( gl, geometries, attributes, info ) { + + let updateMap = new WeakMap(); + + function update( object ) { + + const frame = info.render.frame; + + const geometry = object.geometry; + const buffergeometry = geometries.get( object, geometry ); + + // Update once per frame + + if ( updateMap.get( buffergeometry ) !== frame ) { + + if ( geometry.isGeometry ) { + + buffergeometry.updateFromObject( object ); + + } + + geometries.update( buffergeometry ); + + updateMap.set( buffergeometry, frame ); + + } + + if ( object.isInstancedMesh ) { + + if ( object.hasEventListener( 'dispose', onInstancedMeshDispose ) === false ) { + + object.addEventListener( 'dispose', onInstancedMeshDispose ); + + } + + attributes.update( object.instanceMatrix, 34962 ); + + if ( object.instanceColor !== null ) { + + attributes.update( object.instanceColor, 34962 ); + + } + + } + + return buffergeometry; + + } + + function dispose() { + + updateMap = new WeakMap(); + + } + + function onInstancedMeshDispose( event ) { + + const instancedMesh = event.target; + + instancedMesh.removeEventListener( 'dispose', onInstancedMeshDispose ); + + attributes.remove( instancedMesh.instanceMatrix ); + + if ( instancedMesh.instanceColor !== null ) attributes.remove( instancedMesh.instanceColor ); + + } + + return { + + update: update, + dispose: dispose + + }; + +} + +function DataTexture2DArray( data = null, width = 1, height = 1, depth = 1 ) { + + Texture.call( this, null ); + + this.image = { data, width, height, depth }; + + this.magFilter = NearestFilter; + this.minFilter = NearestFilter; + + this.wrapR = ClampToEdgeWrapping; + + this.generateMipmaps = false; + this.flipY = false; + + this.needsUpdate = true; + +} + +DataTexture2DArray.prototype = Object.create( Texture.prototype ); +DataTexture2DArray.prototype.constructor = DataTexture2DArray; +DataTexture2DArray.prototype.isDataTexture2DArray = true; + +function DataTexture3D( data = null, width = 1, height = 1, depth = 1 ) { + + // We're going to add .setXXX() methods for setting properties later. + // Users can still set in DataTexture3D directly. + // + // const texture = new THREE.DataTexture3D( data, width, height, depth ); + // texture.anisotropy = 16; + // + // See #14839 + + Texture.call( this, null ); + + this.image = { data, width, height, depth }; + + this.magFilter = NearestFilter; + this.minFilter = NearestFilter; + + this.wrapR = ClampToEdgeWrapping; + + this.generateMipmaps = false; + this.flipY = false; + + this.needsUpdate = true; + + +} + +DataTexture3D.prototype = Object.create( Texture.prototype ); +DataTexture3D.prototype.constructor = DataTexture3D; +DataTexture3D.prototype.isDataTexture3D = true; + +/** + * Uniforms of a program. + * Those form a tree structure with a special top-level container for the root, + * which you get by calling 'new WebGLUniforms( gl, program )'. + * + * + * Properties of inner nodes including the top-level container: + * + * .seq - array of nested uniforms + * .map - nested uniforms by name + * + * + * Methods of all nodes except the top-level container: + * + * .setValue( gl, value, [textures] ) + * + * uploads a uniform value(s) + * the 'textures' parameter is needed for sampler uniforms + * + * + * Static methods of the top-level container (textures factorizations): + * + * .upload( gl, seq, values, textures ) + * + * sets uniforms in 'seq' to 'values[id].value' + * + * .seqWithValue( seq, values ) : filteredSeq + * + * filters 'seq' entries with corresponding entry in values + * + * + * Methods of the top-level container (textures factorizations): + * + * .setValue( gl, name, value, textures ) + * + * sets uniform with name 'name' to 'value' + * + * .setOptional( gl, obj, prop ) + * + * like .set for an optional property of the object + * + */ + +const emptyTexture = new Texture(); +const emptyTexture2dArray = new DataTexture2DArray(); +const emptyTexture3d = new DataTexture3D(); +const emptyCubeTexture = new CubeTexture(); + +// --- Utilities --- + +// Array Caches (provide typed arrays for temporary by size) + +const arrayCacheF32 = []; +const arrayCacheI32 = []; + +// Float32Array caches used for uploading Matrix uniforms + +const mat4array = new Float32Array( 16 ); +const mat3array = new Float32Array( 9 ); +const mat2array = new Float32Array( 4 ); + +// Flattening for arrays of vectors and matrices + +function flatten( array, nBlocks, blockSize ) { + + const firstElem = array[ 0 ]; + + if ( firstElem <= 0 || firstElem > 0 ) return array; + // unoptimized: ! isNaN( firstElem ) + // see http://jacksondunstan.com/articles/983 + + const n = nBlocks * blockSize; + let r = arrayCacheF32[ n ]; + + if ( r === undefined ) { + + r = new Float32Array( n ); + arrayCacheF32[ n ] = r; + + } + + if ( nBlocks !== 0 ) { + + firstElem.toArray( r, 0 ); + + for ( let i = 1, offset = 0; i !== nBlocks; ++ i ) { + + offset += blockSize; + array[ i ].toArray( r, offset ); + + } + + } + + return r; + +} + +function arraysEqual( a, b ) { + + if ( a.length !== b.length ) return false; + + for ( let i = 0, l = a.length; i < l; i ++ ) { + + if ( a[ i ] !== b[ i ] ) return false; + + } + + return true; + +} + +function copyArray( a, b ) { + + for ( let i = 0, l = b.length; i < l; i ++ ) { + + a[ i ] = b[ i ]; + + } + +} + +// Texture unit allocation + +function allocTexUnits( textures, n ) { + + let r = arrayCacheI32[ n ]; + + if ( r === undefined ) { + + r = new Int32Array( n ); + arrayCacheI32[ n ] = r; + + } + + for ( let i = 0; i !== n; ++ i ) { + + r[ i ] = textures.allocateTextureUnit(); + + } + + return r; + +} + +// --- Setters --- + +// Note: Defining these methods externally, because they come in a bunch +// and this way their names minify. + +// Single scalar + +function setValueV1f( gl, v ) { + + const cache = this.cache; + + if ( cache[ 0 ] === v ) return; + + gl.uniform1f( this.addr, v ); + + cache[ 0 ] = v; + +} + +// Single float vector (from flat array or THREE.VectorN) + +function setValueV2f( gl, v ) { + + const cache = this.cache; + + if ( v.x !== undefined ) { + + if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y ) { + + gl.uniform2f( this.addr, v.x, v.y ); + + cache[ 0 ] = v.x; + cache[ 1 ] = v.y; + + } + + } else { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform2fv( this.addr, v ); + + copyArray( cache, v ); + + } + +} + +function setValueV3f( gl, v ) { + + const cache = this.cache; + + if ( v.x !== undefined ) { + + if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z ) { + + gl.uniform3f( this.addr, v.x, v.y, v.z ); + + cache[ 0 ] = v.x; + cache[ 1 ] = v.y; + cache[ 2 ] = v.z; + + } + + } else if ( v.r !== undefined ) { + + if ( cache[ 0 ] !== v.r || cache[ 1 ] !== v.g || cache[ 2 ] !== v.b ) { + + gl.uniform3f( this.addr, v.r, v.g, v.b ); + + cache[ 0 ] = v.r; + cache[ 1 ] = v.g; + cache[ 2 ] = v.b; + + } + + } else { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform3fv( this.addr, v ); + + copyArray( cache, v ); + + } + +} + +function setValueV4f( gl, v ) { + + const cache = this.cache; + + if ( v.x !== undefined ) { + + if ( cache[ 0 ] !== v.x || cache[ 1 ] !== v.y || cache[ 2 ] !== v.z || cache[ 3 ] !== v.w ) { + + gl.uniform4f( this.addr, v.x, v.y, v.z, v.w ); + + cache[ 0 ] = v.x; + cache[ 1 ] = v.y; + cache[ 2 ] = v.z; + cache[ 3 ] = v.w; + + } + + } else { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform4fv( this.addr, v ); + + copyArray( cache, v ); + + } + +} + +// Single matrix (from flat array or MatrixN) + +function setValueM2( gl, v ) { + + const cache = this.cache; + const elements = v.elements; + + if ( elements === undefined ) { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniformMatrix2fv( this.addr, false, v ); + + copyArray( cache, v ); + + } else { + + if ( arraysEqual( cache, elements ) ) return; + + mat2array.set( elements ); + + gl.uniformMatrix2fv( this.addr, false, mat2array ); + + copyArray( cache, elements ); + + } + +} + +function setValueM3( gl, v ) { + + const cache = this.cache; + const elements = v.elements; + + if ( elements === undefined ) { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniformMatrix3fv( this.addr, false, v ); + + copyArray( cache, v ); + + } else { + + if ( arraysEqual( cache, elements ) ) return; + + mat3array.set( elements ); + + gl.uniformMatrix3fv( this.addr, false, mat3array ); + + copyArray( cache, elements ); + + } + +} + +function setValueM4( gl, v ) { + + const cache = this.cache; + const elements = v.elements; + + if ( elements === undefined ) { + + if ( arraysEqual( cache, v ) ) return; + + gl.uniformMatrix4fv( this.addr, false, v ); + + copyArray( cache, v ); + + } else { + + if ( arraysEqual( cache, elements ) ) return; + + mat4array.set( elements ); + + gl.uniformMatrix4fv( this.addr, false, mat4array ); + + copyArray( cache, elements ); + + } + +} + +// Single texture (2D / Cube) + +function setValueT1( gl, v, textures ) { + + const cache = this.cache; + const unit = textures.allocateTextureUnit(); + + if ( cache[ 0 ] !== unit ) { + + gl.uniform1i( this.addr, unit ); + cache[ 0 ] = unit; + + } + + textures.safeSetTexture2D( v || emptyTexture, unit ); + +} + +function setValueT2DArray1( gl, v, textures ) { + + const cache = this.cache; + const unit = textures.allocateTextureUnit(); + + if ( cache[ 0 ] !== unit ) { + + gl.uniform1i( this.addr, unit ); + cache[ 0 ] = unit; + + } + + textures.setTexture2DArray( v || emptyTexture2dArray, unit ); + +} + +function setValueT3D1( gl, v, textures ) { + + const cache = this.cache; + const unit = textures.allocateTextureUnit(); + + if ( cache[ 0 ] !== unit ) { + + gl.uniform1i( this.addr, unit ); + cache[ 0 ] = unit; + + } + + textures.setTexture3D( v || emptyTexture3d, unit ); + +} + +function setValueT6( gl, v, textures ) { + + const cache = this.cache; + const unit = textures.allocateTextureUnit(); + + if ( cache[ 0 ] !== unit ) { + + gl.uniform1i( this.addr, unit ); + cache[ 0 ] = unit; + + } + + textures.safeSetTextureCube( v || emptyCubeTexture, unit ); + +} + +// Integer / Boolean vectors or arrays thereof (always flat arrays) + +function setValueV1i( gl, v ) { + + const cache = this.cache; + + if ( cache[ 0 ] === v ) return; + + gl.uniform1i( this.addr, v ); + + cache[ 0 ] = v; + +} + +function setValueV2i( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform2iv( this.addr, v ); + + copyArray( cache, v ); + +} + +function setValueV3i( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform3iv( this.addr, v ); + + copyArray( cache, v ); + +} + +function setValueV4i( gl, v ) { + + const cache = this.cache; + + if ( arraysEqual( cache, v ) ) return; + + gl.uniform4iv( this.addr, v ); + + copyArray( cache, v ); + +} + +// uint + +function setValueV1ui( gl, v ) { + + const cache = this.cache; + + if ( cache[ 0 ] === v ) return; + + gl.uniform1ui( this.addr, v ); + + cache[ 0 ] = v; + +} + +// Helper to pick the right setter for the singular case + +function getSingularSetter( type ) { + + switch ( type ) { + + case 0x1406: return setValueV1f; // FLOAT + case 0x8b50: return setValueV2f; // _VEC2 + case 0x8b51: return setValueV3f; // _VEC3 + case 0x8b52: return setValueV4f; // _VEC4 + + case 0x8b5a: return setValueM2; // _MAT2 + case 0x8b5b: return setValueM3; // _MAT3 + case 0x8b5c: return setValueM4; // _MAT4 + + case 0x1404: case 0x8b56: return setValueV1i; // INT, BOOL + case 0x8b53: case 0x8b57: return setValueV2i; // _VEC2 + case 0x8b54: case 0x8b58: return setValueV3i; // _VEC3 + case 0x8b55: case 0x8b59: return setValueV4i; // _VEC4 + + case 0x1405: return setValueV1ui; // UINT + + case 0x8b5e: // SAMPLER_2D + case 0x8d66: // SAMPLER_EXTERNAL_OES + case 0x8dca: // INT_SAMPLER_2D + case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D + case 0x8b62: // SAMPLER_2D_SHADOW + return setValueT1; + + case 0x8b5f: // SAMPLER_3D + case 0x8dcb: // INT_SAMPLER_3D + case 0x8dd3: // UNSIGNED_INT_SAMPLER_3D + return setValueT3D1; + + case 0x8b60: // SAMPLER_CUBE + case 0x8dcc: // INT_SAMPLER_CUBE + case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE + case 0x8dc5: // SAMPLER_CUBE_SHADOW + return setValueT6; + + case 0x8dc1: // SAMPLER_2D_ARRAY + case 0x8dcf: // INT_SAMPLER_2D_ARRAY + case 0x8dd7: // UNSIGNED_INT_SAMPLER_2D_ARRAY + case 0x8dc4: // SAMPLER_2D_ARRAY_SHADOW + return setValueT2DArray1; + + } + +} + +// Array of scalars +function setValueV1fArray( gl, v ) { + + gl.uniform1fv( this.addr, v ); + +} + +// Integer / Boolean vectors or arrays thereof (always flat arrays) +function setValueV1iArray( gl, v ) { + + gl.uniform1iv( this.addr, v ); + +} + +function setValueV2iArray( gl, v ) { + + gl.uniform2iv( this.addr, v ); + +} + +function setValueV3iArray( gl, v ) { + + gl.uniform3iv( this.addr, v ); + +} + +function setValueV4iArray( gl, v ) { + + gl.uniform4iv( this.addr, v ); + +} + + +// Array of vectors (flat or from THREE classes) + +function setValueV2fArray( gl, v ) { + + const data = flatten( v, this.size, 2 ); + + gl.uniform2fv( this.addr, data ); + +} + +function setValueV3fArray( gl, v ) { + + const data = flatten( v, this.size, 3 ); + + gl.uniform3fv( this.addr, data ); + +} + +function setValueV4fArray( gl, v ) { + + const data = flatten( v, this.size, 4 ); + + gl.uniform4fv( this.addr, data ); + +} + +// Array of matrices (flat or from THREE clases) + +function setValueM2Array( gl, v ) { + + const data = flatten( v, this.size, 4 ); + + gl.uniformMatrix2fv( this.addr, false, data ); + +} + +function setValueM3Array( gl, v ) { + + const data = flatten( v, this.size, 9 ); + + gl.uniformMatrix3fv( this.addr, false, data ); + +} + +function setValueM4Array( gl, v ) { + + const data = flatten( v, this.size, 16 ); + + gl.uniformMatrix4fv( this.addr, false, data ); + +} + +// Array of textures (2D / Cube) + +function setValueT1Array( gl, v, textures ) { + + const n = v.length; + + const units = allocTexUnits( textures, n ); + + gl.uniform1iv( this.addr, units ); + + for ( let i = 0; i !== n; ++ i ) { + + textures.safeSetTexture2D( v[ i ] || emptyTexture, units[ i ] ); + + } + +} + +function setValueT6Array( gl, v, textures ) { + + const n = v.length; + + const units = allocTexUnits( textures, n ); + + gl.uniform1iv( this.addr, units ); + + for ( let i = 0; i !== n; ++ i ) { + + textures.safeSetTextureCube( v[ i ] || emptyCubeTexture, units[ i ] ); + + } + +} + +// Helper to pick the right setter for a pure (bottom-level) array + +function getPureArraySetter( type ) { + + switch ( type ) { + + case 0x1406: return setValueV1fArray; // FLOAT + case 0x8b50: return setValueV2fArray; // _VEC2 + case 0x8b51: return setValueV3fArray; // _VEC3 + case 0x8b52: return setValueV4fArray; // _VEC4 + + case 0x8b5a: return setValueM2Array; // _MAT2 + case 0x8b5b: return setValueM3Array; // _MAT3 + case 0x8b5c: return setValueM4Array; // _MAT4 + + case 0x1404: case 0x8b56: return setValueV1iArray; // INT, BOOL + case 0x8b53: case 0x8b57: return setValueV2iArray; // _VEC2 + case 0x8b54: case 0x8b58: return setValueV3iArray; // _VEC3 + case 0x8b55: case 0x8b59: return setValueV4iArray; // _VEC4 + + case 0x8b5e: // SAMPLER_2D + case 0x8d66: // SAMPLER_EXTERNAL_OES + case 0x8dca: // INT_SAMPLER_2D + case 0x8dd2: // UNSIGNED_INT_SAMPLER_2D + case 0x8b62: // SAMPLER_2D_SHADOW + return setValueT1Array; + + case 0x8b60: // SAMPLER_CUBE + case 0x8dcc: // INT_SAMPLER_CUBE + case 0x8dd4: // UNSIGNED_INT_SAMPLER_CUBE + case 0x8dc5: // SAMPLER_CUBE_SHADOW + return setValueT6Array; + + } + +} + +// --- Uniform Classes --- + +function SingleUniform( id, activeInfo, addr ) { + + this.id = id; + this.addr = addr; + this.cache = []; + this.setValue = getSingularSetter( activeInfo.type ); + + // this.path = activeInfo.name; // DEBUG + +} + +function PureArrayUniform( id, activeInfo, addr ) { + + this.id = id; + this.addr = addr; + this.cache = []; + this.size = activeInfo.size; + this.setValue = getPureArraySetter( activeInfo.type ); + + // this.path = activeInfo.name; // DEBUG + +} + +PureArrayUniform.prototype.updateCache = function ( data ) { + + const cache = this.cache; + + if ( data instanceof Float32Array && cache.length !== data.length ) { + + this.cache = new Float32Array( data.length ); + + } + + copyArray( cache, data ); + +}; + +function StructuredUniform( id ) { + + this.id = id; + + this.seq = []; + this.map = {}; + +} + +StructuredUniform.prototype.setValue = function ( gl, value, textures ) { + + const seq = this.seq; + + for ( let i = 0, n = seq.length; i !== n; ++ i ) { + + const u = seq[ i ]; + u.setValue( gl, value[ u.id ], textures ); + + } + +}; + +// --- Top-level --- + +// Parser - builds up the property tree from the path strings + +const RePathPart = /(\w+)(\])?(\[|\.)?/g; + +// extracts +// - the identifier (member name or array index) +// - followed by an optional right bracket (found when array index) +// - followed by an optional left bracket or dot (type of subscript) +// +// Note: These portions can be read in a non-overlapping fashion and +// allow straightforward parsing of the hierarchy that WebGL encodes +// in the uniform names. + +function addUniform( container, uniformObject ) { + + container.seq.push( uniformObject ); + container.map[ uniformObject.id ] = uniformObject; + +} + +function parseUniform( activeInfo, addr, container ) { + + const path = activeInfo.name, + pathLength = path.length; + + // reset RegExp object, because of the early exit of a previous run + RePathPart.lastIndex = 0; + + while ( true ) { + + const match = RePathPart.exec( path ), + matchEnd = RePathPart.lastIndex; + + let id = match[ 1 ]; + const idIsIndex = match[ 2 ] === ']', + subscript = match[ 3 ]; + + if ( idIsIndex ) id = id | 0; // convert to integer + + if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) { + + // bare name or "pure" bottom-level array "[0]" suffix + + addUniform( container, subscript === undefined ? + new SingleUniform( id, activeInfo, addr ) : + new PureArrayUniform( id, activeInfo, addr ) ); + + break; + + } else { + + // step into inner node / create it in case it doesn't exist + + const map = container.map; + let next = map[ id ]; + + if ( next === undefined ) { + + next = new StructuredUniform( id ); + addUniform( container, next ); + + } + + container = next; + + } + + } + +} + +// Root Container + +function WebGLUniforms( gl, program ) { + + this.seq = []; + this.map = {}; + + const n = gl.getProgramParameter( program, 35718 ); + + for ( let i = 0; i < n; ++ i ) { + + const info = gl.getActiveUniform( program, i ), + addr = gl.getUniformLocation( program, info.name ); + + parseUniform( info, addr, this ); + + } + +} + +WebGLUniforms.prototype.setValue = function ( gl, name, value, textures ) { + + const u = this.map[ name ]; + + if ( u !== undefined ) u.setValue( gl, value, textures ); + +}; + +WebGLUniforms.prototype.setOptional = function ( gl, object, name ) { + + const v = object[ name ]; + + if ( v !== undefined ) this.setValue( gl, name, v ); + +}; + + +// Static interface + +WebGLUniforms.upload = function ( gl, seq, values, textures ) { + + for ( let i = 0, n = seq.length; i !== n; ++ i ) { + + const u = seq[ i ], + v = values[ u.id ]; + + if ( v.needsUpdate !== false ) { + + // note: always updating when .needsUpdate is undefined + u.setValue( gl, v.value, textures ); + + } + + } + +}; + +WebGLUniforms.seqWithValue = function ( seq, values ) { + + const r = []; + + for ( let i = 0, n = seq.length; i !== n; ++ i ) { + + const u = seq[ i ]; + if ( u.id in values ) r.push( u ); + + } + + return r; + +}; + +function WebGLShader( gl, type, string ) { + + const shader = gl.createShader( type ); + + gl.shaderSource( shader, string ); + gl.compileShader( shader ); + + return shader; + +} + +let programIdCount = 0; + +function addLineNumbers( string ) { + + const lines = string.split( '\n' ); + + for ( let i = 0; i < lines.length; i ++ ) { + + lines[ i ] = ( i + 1 ) + ': ' + lines[ i ]; + + } + + return lines.join( '\n' ); + +} + +function getEncodingComponents( encoding ) { + + switch ( encoding ) { + + case LinearEncoding: + return [ 'Linear', '( value )' ]; + case sRGBEncoding: + return [ 'sRGB', '( value )' ]; + case RGBEEncoding: + return [ 'RGBE', '( value )' ]; + case RGBM7Encoding: + return [ 'RGBM', '( value, 7.0 )' ]; + case RGBM16Encoding: + return [ 'RGBM', '( value, 16.0 )' ]; + case RGBDEncoding: + return [ 'RGBD', '( value, 256.0 )' ]; + case GammaEncoding: + return [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ]; + case LogLuvEncoding: + return [ 'LogLuv', '( value )' ]; + default: + console.warn( 'THREE.WebGLProgram: Unsupported encoding:', encoding ); + return [ 'Linear', '( value )' ]; + + } + +} + +function getShaderErrors( gl, shader, type ) { + + const status = gl.getShaderParameter( shader, 35713 ); + const log = gl.getShaderInfoLog( shader ).trim(); + + if ( status && log === '' ) return ''; + + // --enable-privileged-webgl-extension + // console.log( '**' + type + '**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) ); + + const source = gl.getShaderSource( shader ); + + return 'THREE.WebGLShader: gl.getShaderInfoLog() ' + type + '\n' + log + addLineNumbers( source ); + +} + +function getTexelDecodingFunction( functionName, encoding ) { + + const components = getEncodingComponents( encoding ); + return 'vec4 ' + functionName + '( vec4 value ) { return ' + components[ 0 ] + 'ToLinear' + components[ 1 ] + '; }'; + +} + +function getTexelEncodingFunction( functionName, encoding ) { + + const components = getEncodingComponents( encoding ); + return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }'; + +} + +function getToneMappingFunction( functionName, toneMapping ) { + + let toneMappingName; + + switch ( toneMapping ) { + + case LinearToneMapping: + toneMappingName = 'Linear'; + break; + + case ReinhardToneMapping: + toneMappingName = 'Reinhard'; + break; + + case CineonToneMapping: + toneMappingName = 'OptimizedCineon'; + break; + + case ACESFilmicToneMapping: + toneMappingName = 'ACESFilmic'; + break; + + case CustomToneMapping: + toneMappingName = 'Custom'; + break; + + default: + console.warn( 'THREE.WebGLProgram: Unsupported toneMapping:', toneMapping ); + toneMappingName = 'Linear'; + + } + + return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }'; + +} + +function generateExtensions( parameters ) { + + const chunks = [ + ( parameters.extensionDerivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.tangentSpaceNormalMap || parameters.clearcoatNormalMap || parameters.flatShading || parameters.shaderID === 'physical' ) ? '#extension GL_OES_standard_derivatives : enable' : '', + ( parameters.extensionFragDepth || parameters.logarithmicDepthBuffer ) && parameters.rendererExtensionFragDepth ? '#extension GL_EXT_frag_depth : enable' : '', + ( parameters.extensionDrawBuffers && parameters.rendererExtensionDrawBuffers ) ? '#extension GL_EXT_draw_buffers : require' : '', + ( parameters.extensionShaderTextureLOD || parameters.envMap ) && parameters.rendererExtensionShaderTextureLod ? '#extension GL_EXT_shader_texture_lod : enable' : '' + ]; + + return chunks.filter( filterEmptyLine ).join( '\n' ); + +} + +function generateDefines( defines ) { + + const chunks = []; + + for ( const name in defines ) { + + const value = defines[ name ]; + + if ( value === false ) continue; + + chunks.push( '#define ' + name + ' ' + value ); + + } + + return chunks.join( '\n' ); + +} + +function fetchAttributeLocations( gl, program ) { + + const attributes = {}; + + const n = gl.getProgramParameter( program, 35721 ); + + for ( let i = 0; i < n; i ++ ) { + + const info = gl.getActiveAttrib( program, i ); + const name = info.name; + + // console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i ); + + attributes[ name ] = gl.getAttribLocation( program, name ); + + } + + return attributes; + +} + +function filterEmptyLine( string ) { + + return string !== ''; + +} + +function replaceLightNums( string, parameters ) { + + return string + .replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights ) + .replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights ) + .replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights ) + .replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights ) + .replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights ) + .replace( /NUM_DIR_LIGHT_SHADOWS/g, parameters.numDirLightShadows ) + .replace( /NUM_SPOT_LIGHT_SHADOWS/g, parameters.numSpotLightShadows ) + .replace( /NUM_POINT_LIGHT_SHADOWS/g, parameters.numPointLightShadows ); + +} + +function replaceClippingPlaneNums( string, parameters ) { + + return string + .replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes ) + .replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) ); + +} + +// Resolve Includes + +const includePattern = /^[ \t]*#include +<([\w\d./]+)>/gm; + +function resolveIncludes( string ) { + + return string.replace( includePattern, includeReplacer ); + +} + +function includeReplacer( match, include ) { + + const string = ShaderChunk[ include ]; + + if ( string === undefined ) { + + throw new Error( 'Can not resolve #include <' + include + '>' ); + + } + + return resolveIncludes( string ); + +} + +// Unroll Loops + +const deprecatedUnrollLoopPattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g; +const unrollLoopPattern = /#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g; + +function unrollLoops( string ) { + + return string + .replace( unrollLoopPattern, loopReplacer ) + .replace( deprecatedUnrollLoopPattern, deprecatedLoopReplacer ); + +} + +function deprecatedLoopReplacer( match, start, end, snippet ) { + + console.warn( 'WebGLProgram: #pragma unroll_loop shader syntax is deprecated. Please use #pragma unroll_loop_start syntax instead.' ); + return loopReplacer( match, start, end, snippet ); + +} + +function loopReplacer( match, start, end, snippet ) { + + let string = ''; + + for ( let i = parseInt( start ); i < parseInt( end ); i ++ ) { + + string += snippet + .replace( /\[\s*i\s*\]/g, '[ ' + i + ' ]' ) + .replace( /UNROLLED_LOOP_INDEX/g, i ); + + } + + return string; + +} + +// + +function generatePrecision( parameters ) { + + let precisionstring = 'precision ' + parameters.precision + ' float;\nprecision ' + parameters.precision + ' int;'; + + if ( parameters.precision === 'highp' ) { + + precisionstring += '\n#define HIGH_PRECISION'; + + } else if ( parameters.precision === 'mediump' ) { + + precisionstring += '\n#define MEDIUM_PRECISION'; + + } else if ( parameters.precision === 'lowp' ) { + + precisionstring += '\n#define LOW_PRECISION'; + + } + + return precisionstring; + +} + +function generateShadowMapTypeDefine( parameters ) { + + let shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC'; + + if ( parameters.shadowMapType === PCFShadowMap ) { + + shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF'; + + } else if ( parameters.shadowMapType === PCFSoftShadowMap ) { + + shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT'; + + } else if ( parameters.shadowMapType === VSMShadowMap ) { + + shadowMapTypeDefine = 'SHADOWMAP_TYPE_VSM'; + + } + + return shadowMapTypeDefine; + +} + +function generateEnvMapTypeDefine( parameters ) { + + let envMapTypeDefine = 'ENVMAP_TYPE_CUBE'; + + if ( parameters.envMap ) { + + switch ( parameters.envMapMode ) { + + case CubeReflectionMapping: + case CubeRefractionMapping: + envMapTypeDefine = 'ENVMAP_TYPE_CUBE'; + break; + + case CubeUVReflectionMapping: + case CubeUVRefractionMapping: + envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV'; + break; + + } + + } + + return envMapTypeDefine; + +} + +function generateEnvMapModeDefine( parameters ) { + + let envMapModeDefine = 'ENVMAP_MODE_REFLECTION'; + + if ( parameters.envMap ) { + + switch ( parameters.envMapMode ) { + + case CubeRefractionMapping: + case CubeUVRefractionMapping: + + envMapModeDefine = 'ENVMAP_MODE_REFRACTION'; + break; + + } + + } + + return envMapModeDefine; + +} + +function generateEnvMapBlendingDefine( parameters ) { + + let envMapBlendingDefine = 'ENVMAP_BLENDING_NONE'; + + if ( parameters.envMap ) { + + switch ( parameters.combine ) { + + case MultiplyOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY'; + break; + + case MixOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_MIX'; + break; + + case AddOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_ADD'; + break; + + } + + } + + return envMapBlendingDefine; + +} + +function WebGLProgram( renderer, cacheKey, parameters, bindingStates ) { + + const gl = renderer.getContext(); + + const defines = parameters.defines; + + let vertexShader = parameters.vertexShader; + let fragmentShader = parameters.fragmentShader; + + const shadowMapTypeDefine = generateShadowMapTypeDefine( parameters ); + const envMapTypeDefine = generateEnvMapTypeDefine( parameters ); + const envMapModeDefine = generateEnvMapModeDefine( parameters ); + const envMapBlendingDefine = generateEnvMapBlendingDefine( parameters ); + + + const gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0; + + const customExtensions = parameters.isWebGL2 ? '' : generateExtensions( parameters ); + + const customDefines = generateDefines( defines ); + + const program = gl.createProgram(); + + let prefixVertex, prefixFragment; + let versionString = parameters.glslVersion ? '#version ' + parameters.glslVersion + '\n' : ''; + + if ( parameters.isRawShaderMaterial ) { + + prefixVertex = [ + + customDefines + + ].filter( filterEmptyLine ).join( '\n' ); + + if ( prefixVertex.length > 0 ) { + + prefixVertex += '\n'; + + } + + prefixFragment = [ + + customExtensions, + customDefines + + ].filter( filterEmptyLine ).join( '\n' ); + + if ( prefixFragment.length > 0 ) { + + prefixFragment += '\n'; + + } + + } else { + + prefixVertex = [ + + generatePrecision( parameters ), + + '#define SHADER_NAME ' + parameters.shaderName, + + customDefines, + + parameters.instancing ? '#define USE_INSTANCING' : '', + parameters.instancingColor ? '#define USE_INSTANCING_COLOR' : '', + + parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '', + + '#define GAMMA_FACTOR ' + gammaFactorDefine, + + '#define MAX_BONES ' + parameters.maxBones, + ( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '', + ( parameters.useFog && parameters.fogExp2 ) ? '#define FOG_EXP2' : '', + + parameters.map ? '#define USE_MAP' : '', + parameters.envMap ? '#define USE_ENVMAP' : '', + parameters.envMap ? '#define ' + envMapModeDefine : '', + parameters.lightMap ? '#define USE_LIGHTMAP' : '', + parameters.aoMap ? '#define USE_AOMAP' : '', + parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', + parameters.bumpMap ? '#define USE_BUMPMAP' : '', + parameters.normalMap ? '#define USE_NORMALMAP' : '', + ( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '', + ( parameters.normalMap && parameters.tangentSpaceNormalMap ) ? '#define TANGENTSPACE_NORMALMAP' : '', + + parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', + parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', + parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', + parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '', + parameters.specularMap ? '#define USE_SPECULARMAP' : '', + parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', + parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', + parameters.alphaMap ? '#define USE_ALPHAMAP' : '', + parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', + + parameters.vertexTangents ? '#define USE_TANGENT' : '', + parameters.vertexColors ? '#define USE_COLOR' : '', + parameters.vertexUvs ? '#define USE_UV' : '', + parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', + + parameters.flatShading ? '#define FLAT_SHADED' : '', + + parameters.skinning ? '#define USE_SKINNING' : '', + parameters.useVertexTexture ? '#define BONE_TEXTURE' : '', + + parameters.morphTargets ? '#define USE_MORPHTARGETS' : '', + parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '', + parameters.doubleSided ? '#define DOUBLE_SIDED' : '', + parameters.flipSided ? '#define FLIP_SIDED' : '', + + parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', + parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', + + parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '', + + parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', + ( parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ) ? '#define USE_LOGDEPTHBUF_EXT' : '', + + 'uniform mat4 modelMatrix;', + 'uniform mat4 modelViewMatrix;', + 'uniform mat4 projectionMatrix;', + 'uniform mat4 viewMatrix;', + 'uniform mat3 normalMatrix;', + 'uniform vec3 cameraPosition;', + 'uniform bool isOrthographic;', + + '#ifdef USE_INSTANCING', + + ' attribute mat4 instanceMatrix;', + + '#endif', + + '#ifdef USE_INSTANCING_COLOR', + + ' attribute vec3 instanceColor;', + + '#endif', + + 'attribute vec3 position;', + 'attribute vec3 normal;', + 'attribute vec2 uv;', + + '#ifdef USE_TANGENT', + + ' attribute vec4 tangent;', + + '#endif', + + '#ifdef USE_COLOR', + + ' attribute vec3 color;', + + '#endif', + + '#ifdef USE_MORPHTARGETS', + + ' attribute vec3 morphTarget0;', + ' attribute vec3 morphTarget1;', + ' attribute vec3 morphTarget2;', + ' attribute vec3 morphTarget3;', + + ' #ifdef USE_MORPHNORMALS', + + ' attribute vec3 morphNormal0;', + ' attribute vec3 morphNormal1;', + ' attribute vec3 morphNormal2;', + ' attribute vec3 morphNormal3;', + + ' #else', + + ' attribute vec3 morphTarget4;', + ' attribute vec3 morphTarget5;', + ' attribute vec3 morphTarget6;', + ' attribute vec3 morphTarget7;', + + ' #endif', + + '#endif', + + '#ifdef USE_SKINNING', + + ' attribute vec4 skinIndex;', + ' attribute vec4 skinWeight;', + + '#endif', + + '\n' + + ].filter( filterEmptyLine ).join( '\n' ); + + prefixFragment = [ + + customExtensions, + + generatePrecision( parameters ), + + '#define SHADER_NAME ' + parameters.shaderName, + + customDefines, + + parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest + ( parameters.alphaTest % 1 ? '' : '.0' ) : '', // add '.0' if integer + + '#define GAMMA_FACTOR ' + gammaFactorDefine, + + ( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '', + ( parameters.useFog && parameters.fogExp2 ) ? '#define FOG_EXP2' : '', + + parameters.map ? '#define USE_MAP' : '', + parameters.matcap ? '#define USE_MATCAP' : '', + parameters.envMap ? '#define USE_ENVMAP' : '', + parameters.envMap ? '#define ' + envMapTypeDefine : '', + parameters.envMap ? '#define ' + envMapModeDefine : '', + parameters.envMap ? '#define ' + envMapBlendingDefine : '', + parameters.lightMap ? '#define USE_LIGHTMAP' : '', + parameters.aoMap ? '#define USE_AOMAP' : '', + parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', + parameters.bumpMap ? '#define USE_BUMPMAP' : '', + parameters.normalMap ? '#define USE_NORMALMAP' : '', + ( parameters.normalMap && parameters.objectSpaceNormalMap ) ? '#define OBJECTSPACE_NORMALMAP' : '', + ( parameters.normalMap && parameters.tangentSpaceNormalMap ) ? '#define TANGENTSPACE_NORMALMAP' : '', + parameters.clearcoatMap ? '#define USE_CLEARCOATMAP' : '', + parameters.clearcoatRoughnessMap ? '#define USE_CLEARCOAT_ROUGHNESSMAP' : '', + parameters.clearcoatNormalMap ? '#define USE_CLEARCOAT_NORMALMAP' : '', + parameters.specularMap ? '#define USE_SPECULARMAP' : '', + parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', + parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', + parameters.alphaMap ? '#define USE_ALPHAMAP' : '', + + parameters.sheen ? '#define USE_SHEEN' : '', + parameters.transmissionMap ? '#define USE_TRANSMISSIONMAP' : '', + + parameters.vertexTangents ? '#define USE_TANGENT' : '', + parameters.vertexColors || parameters.instancingColor ? '#define USE_COLOR' : '', + parameters.vertexUvs ? '#define USE_UV' : '', + parameters.uvsVertexOnly ? '#define UVS_VERTEX_ONLY' : '', + + parameters.gradientMap ? '#define USE_GRADIENTMAP' : '', + + parameters.flatShading ? '#define FLAT_SHADED' : '', + + parameters.doubleSided ? '#define DOUBLE_SIDED' : '', + parameters.flipSided ? '#define FLIP_SIDED' : '', + + parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', + parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', + + parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '', + + parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '', + + parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', + ( parameters.logarithmicDepthBuffer && parameters.rendererExtensionFragDepth ) ? '#define USE_LOGDEPTHBUF_EXT' : '', + + ( ( parameters.extensionShaderTextureLOD || parameters.envMap ) && parameters.rendererExtensionShaderTextureLod ) ? '#define TEXTURE_LOD_EXT' : '', + + 'uniform mat4 viewMatrix;', + 'uniform vec3 cameraPosition;', + 'uniform bool isOrthographic;', + + ( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '', + ( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below + ( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '', + + parameters.dithering ? '#define DITHERING' : '', + + ShaderChunk[ 'encodings_pars_fragment' ], // this code is required here because it is used by the various encoding/decoding function defined below + parameters.map ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '', + parameters.matcap ? getTexelDecodingFunction( 'matcapTexelToLinear', parameters.matcapEncoding ) : '', + parameters.envMap ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '', + parameters.emissiveMap ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '', + parameters.lightMap ? getTexelDecodingFunction( 'lightMapTexelToLinear', parameters.lightMapEncoding ) : '', + getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ), + + parameters.depthPacking ? '#define DEPTH_PACKING ' + parameters.depthPacking : '', + + '\n' + + ].filter( filterEmptyLine ).join( '\n' ); + + } + + vertexShader = resolveIncludes( vertexShader ); + vertexShader = replaceLightNums( vertexShader, parameters ); + vertexShader = replaceClippingPlaneNums( vertexShader, parameters ); + + fragmentShader = resolveIncludes( fragmentShader ); + fragmentShader = replaceLightNums( fragmentShader, parameters ); + fragmentShader = replaceClippingPlaneNums( fragmentShader, parameters ); + + vertexShader = unrollLoops( vertexShader ); + fragmentShader = unrollLoops( fragmentShader ); + + if ( parameters.isWebGL2 && parameters.isRawShaderMaterial !== true ) { + + // GLSL 3.0 conversion for built-in materials and ShaderMaterial + + versionString = '#version 300 es\n'; + + prefixVertex = [ + '#define attribute in', + '#define varying out', + '#define texture2D texture' + ].join( '\n' ) + '\n' + prefixVertex; + + prefixFragment = [ + '#define varying in', + ( parameters.glslVersion === GLSL3 ) ? '' : 'out highp vec4 pc_fragColor;', + ( parameters.glslVersion === GLSL3 ) ? '' : '#define gl_FragColor pc_fragColor', + '#define gl_FragDepthEXT gl_FragDepth', + '#define texture2D texture', + '#define textureCube texture', + '#define texture2DProj textureProj', + '#define texture2DLodEXT textureLod', + '#define texture2DProjLodEXT textureProjLod', + '#define textureCubeLodEXT textureLod', + '#define texture2DGradEXT textureGrad', + '#define texture2DProjGradEXT textureProjGrad', + '#define textureCubeGradEXT textureGrad' + ].join( '\n' ) + '\n' + prefixFragment; + + } + + const vertexGlsl = versionString + prefixVertex + vertexShader; + const fragmentGlsl = versionString + prefixFragment + fragmentShader; + + // console.log( '*VERTEX*', vertexGlsl ); + // console.log( '*FRAGMENT*', fragmentGlsl ); + + const glVertexShader = WebGLShader( gl, 35633, vertexGlsl ); + const glFragmentShader = WebGLShader( gl, 35632, fragmentGlsl ); + + gl.attachShader( program, glVertexShader ); + gl.attachShader( program, glFragmentShader ); + + // Force a particular attribute to index 0. + + if ( parameters.index0AttributeName !== undefined ) { + + gl.bindAttribLocation( program, 0, parameters.index0AttributeName ); + + } else if ( parameters.morphTargets === true ) { + + // programs with morphTargets displace position out of attribute 0 + gl.bindAttribLocation( program, 0, 'position' ); + + } + + gl.linkProgram( program ); + + // check for link errors + if ( renderer.debug.checkShaderErrors ) { + + const programLog = gl.getProgramInfoLog( program ).trim(); + const vertexLog = gl.getShaderInfoLog( glVertexShader ).trim(); + const fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim(); + + let runnable = true; + let haveDiagnostics = true; + + if ( gl.getProgramParameter( program, 35714 ) === false ) { + + runnable = false; + + const vertexErrors = getShaderErrors( gl, glVertexShader, 'vertex' ); + const fragmentErrors = getShaderErrors( gl, glFragmentShader, 'fragment' ); + + console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), '35715', gl.getProgramParameter( program, 35715 ), 'gl.getProgramInfoLog', programLog, vertexErrors, fragmentErrors ); + + } else if ( programLog !== '' ) { + + console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog ); + + } else if ( vertexLog === '' || fragmentLog === '' ) { + + haveDiagnostics = false; + + } + + if ( haveDiagnostics ) { + + this.diagnostics = { + + runnable: runnable, + + programLog: programLog, + + vertexShader: { + + log: vertexLog, + prefix: prefixVertex + + }, + + fragmentShader: { + + log: fragmentLog, + prefix: prefixFragment + + } + + }; + + } + + } + + // Clean up + + // Crashes in iOS9 and iOS10. #18402 + // gl.detachShader( program, glVertexShader ); + // gl.detachShader( program, glFragmentShader ); + + gl.deleteShader( glVertexShader ); + gl.deleteShader( glFragmentShader ); + + // set up caching for uniform locations + + let cachedUniforms; + + this.getUniforms = function () { + + if ( cachedUniforms === undefined ) { + + cachedUniforms = new WebGLUniforms( gl, program ); + + } + + return cachedUniforms; + + }; + + // set up caching for attribute locations + + let cachedAttributes; + + this.getAttributes = function () { + + if ( cachedAttributes === undefined ) { + + cachedAttributes = fetchAttributeLocations( gl, program ); + + } + + return cachedAttributes; + + }; + + // free resource + + this.destroy = function () { + + bindingStates.releaseStatesOfProgram( this ); + + gl.deleteProgram( program ); + this.program = undefined; + + }; + + // + + this.name = parameters.shaderName; + this.id = programIdCount ++; + this.cacheKey = cacheKey; + this.usedTimes = 1; + this.program = program; + this.vertexShader = glVertexShader; + this.fragmentShader = glFragmentShader; + + return this; + +} + +function WebGLPrograms( renderer, cubemaps, extensions, capabilities, bindingStates, clipping ) { + + const programs = []; + + const isWebGL2 = capabilities.isWebGL2; + const logarithmicDepthBuffer = capabilities.logarithmicDepthBuffer; + const floatVertexTextures = capabilities.floatVertexTextures; + const maxVertexUniforms = capabilities.maxVertexUniforms; + const vertexTextures = capabilities.vertexTextures; + + let precision = capabilities.precision; + + const shaderIDs = { + MeshDepthMaterial: 'depth', + MeshDistanceMaterial: 'distanceRGBA', + MeshNormalMaterial: 'normal', + MeshBasicMaterial: 'basic', + MeshLambertMaterial: 'lambert', + MeshPhongMaterial: 'phong', + MeshToonMaterial: 'toon', + MeshStandardMaterial: 'physical', + MeshPhysicalMaterial: 'physical', + MeshMatcapMaterial: 'matcap', + LineBasicMaterial: 'basic', + LineDashedMaterial: 'dashed', + PointsMaterial: 'points', + ShadowMaterial: 'shadow', + SpriteMaterial: 'sprite' + }; + + const parameterNames = [ + 'precision', 'isWebGL2', 'supportsVertexTextures', 'outputEncoding', 'instancing', 'instancingColor', + 'map', 'mapEncoding', 'matcap', 'matcapEncoding', 'envMap', 'envMapMode', 'envMapEncoding', 'envMapCubeUV', + 'lightMap', 'lightMapEncoding', 'aoMap', 'emissiveMap', 'emissiveMapEncoding', 'bumpMap', 'normalMap', 'objectSpaceNormalMap', 'tangentSpaceNormalMap', 'clearcoatMap', 'clearcoatRoughnessMap', 'clearcoatNormalMap', 'displacementMap', 'specularMap', + 'roughnessMap', 'metalnessMap', 'gradientMap', + 'alphaMap', 'combine', 'vertexColors', 'vertexTangents', 'vertexUvs', 'uvsVertexOnly', 'fog', 'useFog', 'fogExp2', + 'flatShading', 'sizeAttenuation', 'logarithmicDepthBuffer', 'skinning', + 'maxBones', 'useVertexTexture', 'morphTargets', 'morphNormals', + 'maxMorphTargets', 'maxMorphNormals', 'premultipliedAlpha', + 'numDirLights', 'numPointLights', 'numSpotLights', 'numHemiLights', 'numRectAreaLights', + 'numDirLightShadows', 'numPointLightShadows', 'numSpotLightShadows', + 'shadowMapEnabled', 'shadowMapType', 'toneMapping', 'physicallyCorrectLights', + 'alphaTest', 'doubleSided', 'flipSided', 'numClippingPlanes', 'numClipIntersection', 'depthPacking', 'dithering', + 'sheen', 'transmissionMap' + ]; + + function getMaxBones( object ) { + + const skeleton = object.skeleton; + const bones = skeleton.bones; + + if ( floatVertexTextures ) { + + return 1024; + + } else { + + // default for when object is not specified + // ( for example when prebuilding shader to be used with multiple objects ) + // + // - leave some extra space for other uniforms + // - limit here is ANGLE's 254 max uniform vectors + // (up to 54 should be safe) + + const nVertexUniforms = maxVertexUniforms; + const nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 ); + + const maxBones = Math.min( nVertexMatrices, bones.length ); + + if ( maxBones < bones.length ) { + + console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' ); + return 0; + + } + + return maxBones; + + } + + } + + function getTextureEncodingFromMap( map ) { + + let encoding; + + if ( map && map.isTexture ) { + + encoding = map.encoding; + + } else if ( map && map.isWebGLRenderTarget ) { + + console.warn( 'THREE.WebGLPrograms.getTextureEncodingFromMap: don\'t use render targets as textures. Use their .texture property instead.' ); + encoding = map.texture.encoding; + + } else { + + encoding = LinearEncoding; + + } + + return encoding; + + } + + function getParameters( material, lights, shadows, scene, object ) { + + const fog = scene.fog; + const environment = material.isMeshStandardMaterial ? scene.environment : null; + + const envMap = cubemaps.get( material.envMap || environment ); + + const shaderID = shaderIDs[ material.type ]; + + // heuristics to create shader parameters according to lights in the scene + // (not to blow over maxLights budget) + + const maxBones = object.isSkinnedMesh ? getMaxBones( object ) : 0; + + if ( material.precision !== null ) { + + precision = capabilities.getMaxPrecision( material.precision ); + + if ( precision !== material.precision ) { + + console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' ); + + } + + } + + let vertexShader, fragmentShader; + + if ( shaderID ) { + + const shader = ShaderLib[ shaderID ]; + + vertexShader = shader.vertexShader; + fragmentShader = shader.fragmentShader; + + } else { + + vertexShader = material.vertexShader; + fragmentShader = material.fragmentShader; + + } + + const currentRenderTarget = renderer.getRenderTarget(); + + const parameters = { + + isWebGL2: isWebGL2, + + shaderID: shaderID, + shaderName: material.type, + + vertexShader: vertexShader, + fragmentShader: fragmentShader, + defines: material.defines, + + isRawShaderMaterial: material.isRawShaderMaterial === true, + glslVersion: material.glslVersion, + + precision: precision, + + instancing: object.isInstancedMesh === true, + instancingColor: object.isInstancedMesh === true && object.instanceColor !== null, + + supportsVertexTextures: vertexTextures, + outputEncoding: ( currentRenderTarget !== null ) ? getTextureEncodingFromMap( currentRenderTarget.texture ) : renderer.outputEncoding, + map: !! material.map, + mapEncoding: getTextureEncodingFromMap( material.map ), + matcap: !! material.matcap, + matcapEncoding: getTextureEncodingFromMap( material.matcap ), + envMap: !! envMap, + envMapMode: envMap && envMap.mapping, + envMapEncoding: getTextureEncodingFromMap( envMap ), + envMapCubeUV: ( !! envMap ) && ( ( envMap.mapping === CubeUVReflectionMapping ) || ( envMap.mapping === CubeUVRefractionMapping ) ), + lightMap: !! material.lightMap, + lightMapEncoding: getTextureEncodingFromMap( material.lightMap ), + aoMap: !! material.aoMap, + emissiveMap: !! material.emissiveMap, + emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap ), + bumpMap: !! material.bumpMap, + normalMap: !! material.normalMap, + objectSpaceNormalMap: material.normalMapType === ObjectSpaceNormalMap, + tangentSpaceNormalMap: material.normalMapType === TangentSpaceNormalMap, + clearcoatMap: !! material.clearcoatMap, + clearcoatRoughnessMap: !! material.clearcoatRoughnessMap, + clearcoatNormalMap: !! material.clearcoatNormalMap, + displacementMap: !! material.displacementMap, + roughnessMap: !! material.roughnessMap, + metalnessMap: !! material.metalnessMap, + specularMap: !! material.specularMap, + alphaMap: !! material.alphaMap, + + gradientMap: !! material.gradientMap, + + sheen: !! material.sheen, + + transmissionMap: !! material.transmissionMap, + + combine: material.combine, + + vertexTangents: ( material.normalMap && material.vertexTangents ), + vertexColors: material.vertexColors, + vertexUvs: !! material.map || !! material.bumpMap || !! material.normalMap || !! material.specularMap || !! material.alphaMap || !! material.emissiveMap || !! material.roughnessMap || !! material.metalnessMap || !! material.clearcoatMap || !! material.clearcoatRoughnessMap || !! material.clearcoatNormalMap || !! material.displacementMap || !! material.transmissionMap, + uvsVertexOnly: ! ( !! material.map || !! material.bumpMap || !! material.normalMap || !! material.specularMap || !! material.alphaMap || !! material.emissiveMap || !! material.roughnessMap || !! material.metalnessMap || !! material.clearcoatNormalMap || !! material.transmissionMap ) && !! material.displacementMap, + + fog: !! fog, + useFog: material.fog, + fogExp2: ( fog && fog.isFogExp2 ), + + flatShading: material.flatShading, + + sizeAttenuation: material.sizeAttenuation, + logarithmicDepthBuffer: logarithmicDepthBuffer, + + skinning: material.skinning && maxBones > 0, + maxBones: maxBones, + useVertexTexture: floatVertexTextures, + + morphTargets: material.morphTargets, + morphNormals: material.morphNormals, + maxMorphTargets: renderer.maxMorphTargets, + maxMorphNormals: renderer.maxMorphNormals, + + numDirLights: lights.directional.length, + numPointLights: lights.point.length, + numSpotLights: lights.spot.length, + numRectAreaLights: lights.rectArea.length, + numHemiLights: lights.hemi.length, + + numDirLightShadows: lights.directionalShadowMap.length, + numPointLightShadows: lights.pointShadowMap.length, + numSpotLightShadows: lights.spotShadowMap.length, + + numClippingPlanes: clipping.numPlanes, + numClipIntersection: clipping.numIntersection, + + dithering: material.dithering, + + shadowMapEnabled: renderer.shadowMap.enabled && shadows.length > 0, + shadowMapType: renderer.shadowMap.type, + + toneMapping: material.toneMapped ? renderer.toneMapping : NoToneMapping, + physicallyCorrectLights: renderer.physicallyCorrectLights, + + premultipliedAlpha: material.premultipliedAlpha, + + alphaTest: material.alphaTest, + doubleSided: material.side === DoubleSide, + flipSided: material.side === BackSide, + + depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false, + + index0AttributeName: material.index0AttributeName, + + extensionDerivatives: material.extensions && material.extensions.derivatives, + extensionFragDepth: material.extensions && material.extensions.fragDepth, + extensionDrawBuffers: material.extensions && material.extensions.drawBuffers, + extensionShaderTextureLOD: material.extensions && material.extensions.shaderTextureLOD, + + rendererExtensionFragDepth: isWebGL2 || extensions.has( 'EXT_frag_depth' ), + rendererExtensionDrawBuffers: isWebGL2 || extensions.has( 'WEBGL_draw_buffers' ), + rendererExtensionShaderTextureLod: isWebGL2 || extensions.has( 'EXT_shader_texture_lod' ), + + customProgramCacheKey: material.customProgramCacheKey() + + }; + + return parameters; + + } + + function getProgramCacheKey( parameters ) { + + const array = []; + + if ( parameters.shaderID ) { + + array.push( parameters.shaderID ); + + } else { + + array.push( parameters.fragmentShader ); + array.push( parameters.vertexShader ); + + } + + if ( parameters.defines !== undefined ) { + + for ( const name in parameters.defines ) { + + array.push( name ); + array.push( parameters.defines[ name ] ); + + } + + } + + if ( parameters.isRawShaderMaterial === false ) { + + for ( let i = 0; i < parameterNames.length; i ++ ) { + + array.push( parameters[ parameterNames[ i ] ] ); + + } + + array.push( renderer.outputEncoding ); + array.push( renderer.gammaFactor ); + + } + + array.push( parameters.customProgramCacheKey ); + + return array.join(); + + } + + function getUniforms( material ) { + + const shaderID = shaderIDs[ material.type ]; + let uniforms; + + if ( shaderID ) { + + const shader = ShaderLib[ shaderID ]; + uniforms = UniformsUtils.clone( shader.uniforms ); + + } else { + + uniforms = material.uniforms; + + } + + return uniforms; + + } + + function acquireProgram( parameters, cacheKey ) { + + let program; + + // Check if code has been already compiled + for ( let p = 0, pl = programs.length; p < pl; p ++ ) { + + const preexistingProgram = programs[ p ]; + + if ( preexistingProgram.cacheKey === cacheKey ) { + + program = preexistingProgram; + ++ program.usedTimes; + + break; + + } + + } + + if ( program === undefined ) { + + program = new WebGLProgram( renderer, cacheKey, parameters, bindingStates ); + programs.push( program ); + + } + + return program; + + } + + function releaseProgram( program ) { + + if ( -- program.usedTimes === 0 ) { + + // Remove from unordered set + const i = programs.indexOf( program ); + programs[ i ] = programs[ programs.length - 1 ]; + programs.pop(); + + // Free WebGL resources + program.destroy(); + + } + + } + + return { + getParameters: getParameters, + getProgramCacheKey: getProgramCacheKey, + getUniforms: getUniforms, + acquireProgram: acquireProgram, + releaseProgram: releaseProgram, + // Exposed for resource monitoring & error feedback via renderer.info: + programs: programs + }; + +} + +function WebGLProperties() { + + let properties = new WeakMap(); + + function get( object ) { + + let map = properties.get( object ); + + if ( map === undefined ) { + + map = {}; + properties.set( object, map ); + + } + + return map; + + } + + function remove( object ) { + + properties.delete( object ); + + } + + function update( object, key, value ) { + + properties.get( object )[ key ] = value; + + } + + function dispose() { + + properties = new WeakMap(); + + } + + return { + get: get, + remove: remove, + update: update, + dispose: dispose + }; + +} + +function painterSortStable( a, b ) { + + if ( a.groupOrder !== b.groupOrder ) { + + return a.groupOrder - b.groupOrder; + + } else if ( a.renderOrder !== b.renderOrder ) { + + return a.renderOrder - b.renderOrder; + + } else if ( a.program !== b.program ) { + + return a.program.id - b.program.id; + + } else if ( a.material.id !== b.material.id ) { + + return a.material.id - b.material.id; + + } else if ( a.z !== b.z ) { + + return a.z - b.z; + + } else { + + return a.id - b.id; + + } + +} + +function reversePainterSortStable( a, b ) { + + if ( a.groupOrder !== b.groupOrder ) { + + return a.groupOrder - b.groupOrder; + + } else if ( a.renderOrder !== b.renderOrder ) { + + return a.renderOrder - b.renderOrder; + + } else if ( a.z !== b.z ) { + + return b.z - a.z; + + } else { + + return a.id - b.id; + + } + +} + + +function WebGLRenderList( properties ) { + + const renderItems = []; + let renderItemsIndex = 0; + + const opaque = []; + const transparent = []; + + const defaultProgram = { id: - 1 }; + + function init() { + + renderItemsIndex = 0; + + opaque.length = 0; + transparent.length = 0; + + } + + function getNextRenderItem( object, geometry, material, groupOrder, z, group ) { + + let renderItem = renderItems[ renderItemsIndex ]; + const materialProperties = properties.get( material ); + + if ( renderItem === undefined ) { + + renderItem = { + id: object.id, + object: object, + geometry: geometry, + material: material, + program: materialProperties.program || defaultProgram, + groupOrder: groupOrder, + renderOrder: object.renderOrder, + z: z, + group: group + }; + + renderItems[ renderItemsIndex ] = renderItem; + + } else { + + renderItem.id = object.id; + renderItem.object = object; + renderItem.geometry = geometry; + renderItem.material = material; + renderItem.program = materialProperties.program || defaultProgram; + renderItem.groupOrder = groupOrder; + renderItem.renderOrder = object.renderOrder; + renderItem.z = z; + renderItem.group = group; + + } + + renderItemsIndex ++; + + return renderItem; + + } + + function push( object, geometry, material, groupOrder, z, group ) { + + const renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group ); + + ( material.transparent === true ? transparent : opaque ).push( renderItem ); + + } + + function unshift( object, geometry, material, groupOrder, z, group ) { + + const renderItem = getNextRenderItem( object, geometry, material, groupOrder, z, group ); + + ( material.transparent === true ? transparent : opaque ).unshift( renderItem ); + + } + + function sort( customOpaqueSort, customTransparentSort ) { + + if ( opaque.length > 1 ) opaque.sort( customOpaqueSort || painterSortStable ); + if ( transparent.length > 1 ) transparent.sort( customTransparentSort || reversePainterSortStable ); + + } + + function finish() { + + // Clear references from inactive renderItems in the list + + for ( let i = renderItemsIndex, il = renderItems.length; i < il; i ++ ) { + + const renderItem = renderItems[ i ]; + + if ( renderItem.id === null ) break; + + renderItem.id = null; + renderItem.object = null; + renderItem.geometry = null; + renderItem.material = null; + renderItem.program = null; + renderItem.group = null; + + } + + } + + return { + + opaque: opaque, + transparent: transparent, + + init: init, + push: push, + unshift: unshift, + finish: finish, + + sort: sort + }; + +} + +function WebGLRenderLists( properties ) { + + let lists = new WeakMap(); + + function get( scene, camera ) { + + const cameras = lists.get( scene ); + let list; + + if ( cameras === undefined ) { + + list = new WebGLRenderList( properties ); + lists.set( scene, new WeakMap() ); + lists.get( scene ).set( camera, list ); + + } else { + + list = cameras.get( camera ); + if ( list === undefined ) { + + list = new WebGLRenderList( properties ); + cameras.set( camera, list ); + + } + + } + + return list; + + } + + function dispose() { + + lists = new WeakMap(); + + } + + return { + get: get, + dispose: dispose + }; + +} + +function UniformsCache() { + + const lights = {}; + + return { + + get: function ( light ) { + + if ( lights[ light.id ] !== undefined ) { + + return lights[ light.id ]; + + } + + let uniforms; + + switch ( light.type ) { + + case 'DirectionalLight': + uniforms = { + direction: new Vector3(), + color: new Color() + }; + break; + + case 'SpotLight': + uniforms = { + position: new Vector3(), + direction: new Vector3(), + color: new Color(), + distance: 0, + coneCos: 0, + penumbraCos: 0, + decay: 0 + }; + break; + + case 'PointLight': + uniforms = { + position: new Vector3(), + color: new Color(), + distance: 0, + decay: 0 + }; + break; + + case 'HemisphereLight': + uniforms = { + direction: new Vector3(), + skyColor: new Color(), + groundColor: new Color() + }; + break; + + case 'RectAreaLight': + uniforms = { + color: new Color(), + position: new Vector3(), + halfWidth: new Vector3(), + halfHeight: new Vector3() + }; + break; + + } + + lights[ light.id ] = uniforms; + + return uniforms; + + } + + }; + +} + +function ShadowUniformsCache() { + + const lights = {}; + + return { + + get: function ( light ) { + + if ( lights[ light.id ] !== undefined ) { + + return lights[ light.id ]; + + } + + let uniforms; + + switch ( light.type ) { + + case 'DirectionalLight': + uniforms = { + shadowBias: 0, + shadowNormalBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2() + }; + break; + + case 'SpotLight': + uniforms = { + shadowBias: 0, + shadowNormalBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2() + }; + break; + + case 'PointLight': + uniforms = { + shadowBias: 0, + shadowNormalBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2(), + shadowCameraNear: 1, + shadowCameraFar: 1000 + }; + break; + + // TODO (abelnation): set RectAreaLight shadow uniforms + + } + + lights[ light.id ] = uniforms; + + return uniforms; + + } + + }; + +} + + + +let nextVersion = 0; + +function shadowCastingLightsFirst( lightA, lightB ) { + + return ( lightB.castShadow ? 1 : 0 ) - ( lightA.castShadow ? 1 : 0 ); + +} + +function WebGLLights( extensions, capabilities ) { + + const cache = new UniformsCache(); + + const shadowCache = ShadowUniformsCache(); + + const state = { + + version: 0, + + hash: { + directionalLength: - 1, + pointLength: - 1, + spotLength: - 1, + rectAreaLength: - 1, + hemiLength: - 1, + + numDirectionalShadows: - 1, + numPointShadows: - 1, + numSpotShadows: - 1 + }, + + ambient: [ 0, 0, 0 ], + probe: [], + directional: [], + directionalShadow: [], + directionalShadowMap: [], + directionalShadowMatrix: [], + spot: [], + spotShadow: [], + spotShadowMap: [], + spotShadowMatrix: [], + rectArea: [], + rectAreaLTC1: null, + rectAreaLTC2: null, + point: [], + pointShadow: [], + pointShadowMap: [], + pointShadowMatrix: [], + hemi: [] + + }; + + for ( let i = 0; i < 9; i ++ ) state.probe.push( new Vector3() ); + + const vector3 = new Vector3(); + const matrix4 = new Matrix4(); + const matrix42 = new Matrix4(); + + function setup( lights ) { + + let r = 0, g = 0, b = 0; + + for ( let i = 0; i < 9; i ++ ) state.probe[ i ].set( 0, 0, 0 ); + + let directionalLength = 0; + let pointLength = 0; + let spotLength = 0; + let rectAreaLength = 0; + let hemiLength = 0; + + let numDirectionalShadows = 0; + let numPointShadows = 0; + let numSpotShadows = 0; + + lights.sort( shadowCastingLightsFirst ); + + for ( let i = 0, l = lights.length; i < l; i ++ ) { + + const light = lights[ i ]; + + const color = light.color; + const intensity = light.intensity; + const distance = light.distance; + + const shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null; + + if ( light.isAmbientLight ) { + + r += color.r * intensity; + g += color.g * intensity; + b += color.b * intensity; + + } else if ( light.isLightProbe ) { + + for ( let j = 0; j < 9; j ++ ) { + + state.probe[ j ].addScaledVector( light.sh.coefficients[ j ], intensity ); + + } + + } else if ( light.isDirectionalLight ) { + + const uniforms = cache.get( light ); + + uniforms.color.copy( light.color ).multiplyScalar( light.intensity ); + + if ( light.castShadow ) { + + const shadow = light.shadow; + + const shadowUniforms = shadowCache.get( light ); + + shadowUniforms.shadowBias = shadow.bias; + shadowUniforms.shadowNormalBias = shadow.normalBias; + shadowUniforms.shadowRadius = shadow.radius; + shadowUniforms.shadowMapSize = shadow.mapSize; + + state.directionalShadow[ directionalLength ] = shadowUniforms; + state.directionalShadowMap[ directionalLength ] = shadowMap; + state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix; + + numDirectionalShadows ++; + + } + + state.directional[ directionalLength ] = uniforms; + + directionalLength ++; + + } else if ( light.isSpotLight ) { + + const uniforms = cache.get( light ); + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + + uniforms.color.copy( color ).multiplyScalar( intensity ); + uniforms.distance = distance; + + uniforms.coneCos = Math.cos( light.angle ); + uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) ); + uniforms.decay = light.decay; + + if ( light.castShadow ) { + + const shadow = light.shadow; + + const shadowUniforms = shadowCache.get( light ); + + shadowUniforms.shadowBias = shadow.bias; + shadowUniforms.shadowNormalBias = shadow.normalBias; + shadowUniforms.shadowRadius = shadow.radius; + shadowUniforms.shadowMapSize = shadow.mapSize; + + state.spotShadow[ spotLength ] = shadowUniforms; + state.spotShadowMap[ spotLength ] = shadowMap; + state.spotShadowMatrix[ spotLength ] = light.shadow.matrix; + + numSpotShadows ++; + + } + + state.spot[ spotLength ] = uniforms; + + spotLength ++; + + } else if ( light.isRectAreaLight ) { + + const uniforms = cache.get( light ); + + // (a) intensity is the total visible light emitted + //uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) ); + + // (b) intensity is the brightness of the light + uniforms.color.copy( color ).multiplyScalar( intensity ); + + uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 ); + uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 ); + + state.rectArea[ rectAreaLength ] = uniforms; + + rectAreaLength ++; + + } else if ( light.isPointLight ) { + + const uniforms = cache.get( light ); + + uniforms.color.copy( light.color ).multiplyScalar( light.intensity ); + uniforms.distance = light.distance; + uniforms.decay = light.decay; + + if ( light.castShadow ) { + + const shadow = light.shadow; + + const shadowUniforms = shadowCache.get( light ); + + shadowUniforms.shadowBias = shadow.bias; + shadowUniforms.shadowNormalBias = shadow.normalBias; + shadowUniforms.shadowRadius = shadow.radius; + shadowUniforms.shadowMapSize = shadow.mapSize; + shadowUniforms.shadowCameraNear = shadow.camera.near; + shadowUniforms.shadowCameraFar = shadow.camera.far; + + state.pointShadow[ pointLength ] = shadowUniforms; + state.pointShadowMap[ pointLength ] = shadowMap; + state.pointShadowMatrix[ pointLength ] = light.shadow.matrix; + + numPointShadows ++; + + } + + state.point[ pointLength ] = uniforms; + + pointLength ++; + + } else if ( light.isHemisphereLight ) { + + const uniforms = cache.get( light ); + + uniforms.skyColor.copy( light.color ).multiplyScalar( intensity ); + uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity ); + + state.hemi[ hemiLength ] = uniforms; + + hemiLength ++; + + } + + } + + if ( rectAreaLength > 0 ) { + + if ( capabilities.isWebGL2 ) { + + // WebGL 2 + + state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1; + state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2; + + } else { + + // WebGL 1 + + if ( extensions.has( 'OES_texture_float_linear' ) === true ) { + + state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1; + state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2; + + } else if ( extensions.has( 'OES_texture_half_float_linear' ) === true ) { + + state.rectAreaLTC1 = UniformsLib.LTC_HALF_1; + state.rectAreaLTC2 = UniformsLib.LTC_HALF_2; + + } else { + + console.error( 'THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.' ); + + } + + } + + } + + state.ambient[ 0 ] = r; + state.ambient[ 1 ] = g; + state.ambient[ 2 ] = b; + + const hash = state.hash; + + if ( hash.directionalLength !== directionalLength || + hash.pointLength !== pointLength || + hash.spotLength !== spotLength || + hash.rectAreaLength !== rectAreaLength || + hash.hemiLength !== hemiLength || + hash.numDirectionalShadows !== numDirectionalShadows || + hash.numPointShadows !== numPointShadows || + hash.numSpotShadows !== numSpotShadows ) { + + state.directional.length = directionalLength; + state.spot.length = spotLength; + state.rectArea.length = rectAreaLength; + state.point.length = pointLength; + state.hemi.length = hemiLength; + + state.directionalShadow.length = numDirectionalShadows; + state.directionalShadowMap.length = numDirectionalShadows; + state.pointShadow.length = numPointShadows; + state.pointShadowMap.length = numPointShadows; + state.spotShadow.length = numSpotShadows; + state.spotShadowMap.length = numSpotShadows; + state.directionalShadowMatrix.length = numDirectionalShadows; + state.pointShadowMatrix.length = numPointShadows; + state.spotShadowMatrix.length = numSpotShadows; + + hash.directionalLength = directionalLength; + hash.pointLength = pointLength; + hash.spotLength = spotLength; + hash.rectAreaLength = rectAreaLength; + hash.hemiLength = hemiLength; + + hash.numDirectionalShadows = numDirectionalShadows; + hash.numPointShadows = numPointShadows; + hash.numSpotShadows = numSpotShadows; + + state.version = nextVersion ++; + + } + + } + + function setupView( lights, camera ) { + + let directionalLength = 0; + let pointLength = 0; + let spotLength = 0; + let rectAreaLength = 0; + let hemiLength = 0; + + const viewMatrix = camera.matrixWorldInverse; + + for ( let i = 0, l = lights.length; i < l; i ++ ) { + + const light = lights[ i ]; + + if ( light.isDirectionalLight ) { + + const uniforms = state.directional[ directionalLength ]; + + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + vector3.setFromMatrixPosition( light.target.matrixWorld ); + uniforms.direction.sub( vector3 ); + uniforms.direction.transformDirection( viewMatrix ); + + directionalLength ++; + + } else if ( light.isSpotLight ) { + + const uniforms = state.spot[ spotLength ]; + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + uniforms.position.applyMatrix4( viewMatrix ); + + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + vector3.setFromMatrixPosition( light.target.matrixWorld ); + uniforms.direction.sub( vector3 ); + uniforms.direction.transformDirection( viewMatrix ); + + spotLength ++; + + } else if ( light.isRectAreaLight ) { + + const uniforms = state.rectArea[ rectAreaLength ]; + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + uniforms.position.applyMatrix4( viewMatrix ); + + // extract local rotation of light to derive width/height half vectors + matrix42.identity(); + matrix4.copy( light.matrixWorld ); + matrix4.premultiply( viewMatrix ); + matrix42.extractRotation( matrix4 ); + + uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 ); + uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 ); + + uniforms.halfWidth.applyMatrix4( matrix42 ); + uniforms.halfHeight.applyMatrix4( matrix42 ); + + rectAreaLength ++; + + } else if ( light.isPointLight ) { + + const uniforms = state.point[ pointLength ]; + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + uniforms.position.applyMatrix4( viewMatrix ); + + pointLength ++; + + } else if ( light.isHemisphereLight ) { + + const uniforms = state.hemi[ hemiLength ]; + + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + uniforms.direction.transformDirection( viewMatrix ); + uniforms.direction.normalize(); + + hemiLength ++; + + } + + } + + } + + return { + setup: setup, + setupView: setupView, + state: state + }; + +} + +function WebGLRenderState( extensions, capabilities ) { + + const lights = new WebGLLights( extensions, capabilities ); + + const lightsArray = []; + const shadowsArray = []; + + function init() { + + lightsArray.length = 0; + shadowsArray.length = 0; + + } + + function pushLight( light ) { + + lightsArray.push( light ); + + } + + function pushShadow( shadowLight ) { + + shadowsArray.push( shadowLight ); + + } + + function setupLights() { + + lights.setup( lightsArray ); + + } + + function setupLightsView( camera ) { + + lights.setupView( lightsArray, camera ); + + } + + const state = { + lightsArray: lightsArray, + shadowsArray: shadowsArray, + + lights: lights + }; + + return { + init: init, + state: state, + setupLights: setupLights, + setupLightsView: setupLightsView, + + pushLight: pushLight, + pushShadow: pushShadow + }; + +} + +function WebGLRenderStates( extensions, capabilities ) { + + let renderStates = new WeakMap(); + + function get( scene, renderCallDepth = 0 ) { + + let renderState; + + if ( renderStates.has( scene ) === false ) { + + renderState = new WebGLRenderState( extensions, capabilities ); + renderStates.set( scene, [] ); + renderStates.get( scene ).push( renderState ); + + } else { + + if ( renderCallDepth >= renderStates.get( scene ).length ) { + + renderState = new WebGLRenderState( extensions, capabilities ); + renderStates.get( scene ).push( renderState ); + + } else { + + renderState = renderStates.get( scene )[ renderCallDepth ]; + + } + + } + + return renderState; + + } + + function dispose() { + + renderStates = new WeakMap(); + + } + + return { + get: get, + dispose: dispose + }; + +} + +/** + * parameters = { + * + * opacity: , + * + * map: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * wireframe: , + * wireframeLinewidth: + * } + */ + +function MeshDepthMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshDepthMaterial'; + + this.depthPacking = BasicDepthPacking; + + this.skinning = false; + this.morphTargets = false; + + this.map = null; + + this.alphaMap = null; + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; + + this.setValues( parameters ); + +} + +MeshDepthMaterial.prototype = Object.create( Material.prototype ); +MeshDepthMaterial.prototype.constructor = MeshDepthMaterial; + +MeshDepthMaterial.prototype.isMeshDepthMaterial = true; + +MeshDepthMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.depthPacking = source.depthPacking; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + return this; + +}; + +/** + * parameters = { + * + * referencePosition: , + * nearDistance: , + * farDistance: , + * + * skinning: , + * morphTargets: , + * + * map: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: + * + * } + */ + +function MeshDistanceMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshDistanceMaterial'; + + this.referencePosition = new Vector3(); + this.nearDistance = 1; + this.farDistance = 1000; + + this.skinning = false; + this.morphTargets = false; + + this.map = null; + + this.alphaMap = null; + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.fog = false; + + this.setValues( parameters ); + +} + +MeshDistanceMaterial.prototype = Object.create( Material.prototype ); +MeshDistanceMaterial.prototype.constructor = MeshDistanceMaterial; + +MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true; + +MeshDistanceMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.referencePosition.copy( source.referencePosition ); + this.nearDistance = source.nearDistance; + this.farDistance = source.farDistance; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + return this; + +}; + +var vsm_frag = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include \nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}"; + +var vsm_vert = "void main() {\n\tgl_Position = vec4( position, 1.0 );\n}"; + +function WebGLShadowMap( _renderer, _objects, maxTextureSize ) { + + let _frustum = new Frustum(); + + const _shadowMapSize = new Vector2(), + _viewportSize = new Vector2(), + + _viewport = new Vector4(), + + _depthMaterials = [], + _distanceMaterials = [], + + _materialCache = {}; + + const shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide }; + + const shadowMaterialVertical = new ShaderMaterial( { + + defines: { + SAMPLE_RATE: 2.0 / 8.0, + HALF_SAMPLE_RATE: 1.0 / 8.0 + }, + + uniforms: { + shadow_pass: { value: null }, + resolution: { value: new Vector2() }, + radius: { value: 4.0 } + }, + + vertexShader: vsm_vert, + + fragmentShader: vsm_frag + + } ); + + const shadowMaterialHorizontal = shadowMaterialVertical.clone(); + shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1; + + const fullScreenTri = new BufferGeometry(); + fullScreenTri.setAttribute( + 'position', + new BufferAttribute( + new Float32Array( [ - 1, - 1, 0.5, 3, - 1, 0.5, - 1, 3, 0.5 ] ), + 3 + ) + ); + + const fullScreenMesh = new Mesh( fullScreenTri, shadowMaterialVertical ); + + const scope = this; + + this.enabled = false; + + this.autoUpdate = true; + this.needsUpdate = false; + + this.type = PCFShadowMap; + + this.render = function ( lights, scene, camera ) { + + if ( scope.enabled === false ) return; + if ( scope.autoUpdate === false && scope.needsUpdate === false ) return; + + if ( lights.length === 0 ) return; + + const currentRenderTarget = _renderer.getRenderTarget(); + const activeCubeFace = _renderer.getActiveCubeFace(); + const activeMipmapLevel = _renderer.getActiveMipmapLevel(); + + const _state = _renderer.state; + + // Set GL state for depth map. + _state.setBlending( NoBlending ); + _state.buffers.color.setClear( 1, 1, 1, 1 ); + _state.buffers.depth.setTest( true ); + _state.setScissorTest( false ); + + // render depth map + + for ( let i = 0, il = lights.length; i < il; i ++ ) { + + const light = lights[ i ]; + const shadow = light.shadow; + + if ( shadow === undefined ) { + + console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' ); + continue; + + } + + if ( shadow.autoUpdate === false && shadow.needsUpdate === false ) continue; + + _shadowMapSize.copy( shadow.mapSize ); + + const shadowFrameExtents = shadow.getFrameExtents(); + + _shadowMapSize.multiply( shadowFrameExtents ); + + _viewportSize.copy( shadow.mapSize ); + + if ( _shadowMapSize.x > maxTextureSize || _shadowMapSize.y > maxTextureSize ) { + + if ( _shadowMapSize.x > maxTextureSize ) { + + _viewportSize.x = Math.floor( maxTextureSize / shadowFrameExtents.x ); + _shadowMapSize.x = _viewportSize.x * shadowFrameExtents.x; + shadow.mapSize.x = _viewportSize.x; + + } + + if ( _shadowMapSize.y > maxTextureSize ) { + + _viewportSize.y = Math.floor( maxTextureSize / shadowFrameExtents.y ); + _shadowMapSize.y = _viewportSize.y * shadowFrameExtents.y; + shadow.mapSize.y = _viewportSize.y; + + } + + } + + if ( shadow.map === null && ! shadow.isPointLightShadow && this.type === VSMShadowMap ) { + + const pars = { minFilter: LinearFilter, magFilter: LinearFilter, format: RGBAFormat }; + + shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars ); + shadow.map.texture.name = light.name + '.shadowMap'; + + shadow.mapPass = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars ); + + shadow.camera.updateProjectionMatrix(); + + } + + if ( shadow.map === null ) { + + const pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat }; + + shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars ); + shadow.map.texture.name = light.name + '.shadowMap'; + + shadow.camera.updateProjectionMatrix(); + + } + + _renderer.setRenderTarget( shadow.map ); + _renderer.clear(); + + const viewportCount = shadow.getViewportCount(); + + for ( let vp = 0; vp < viewportCount; vp ++ ) { + + const viewport = shadow.getViewport( vp ); + + _viewport.set( + _viewportSize.x * viewport.x, + _viewportSize.y * viewport.y, + _viewportSize.x * viewport.z, + _viewportSize.y * viewport.w + ); + + _state.viewport( _viewport ); + + shadow.updateMatrices( light, vp ); + + _frustum = shadow.getFrustum(); + + renderObject( scene, camera, shadow.camera, light, this.type ); + + } + + // do blur pass for VSM + + if ( ! shadow.isPointLightShadow && this.type === VSMShadowMap ) { + + VSMPass( shadow, camera ); + + } + + shadow.needsUpdate = false; + + } + + scope.needsUpdate = false; + + _renderer.setRenderTarget( currentRenderTarget, activeCubeFace, activeMipmapLevel ); + + }; + + function VSMPass( shadow, camera ) { + + const geometry = _objects.update( fullScreenMesh ); + + // vertical pass + + shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture; + shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize; + shadowMaterialVertical.uniforms.radius.value = shadow.radius; + _renderer.setRenderTarget( shadow.mapPass ); + _renderer.clear(); + _renderer.renderBufferDirect( camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null ); + + // horizontal pass + + shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture; + shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize; + shadowMaterialHorizontal.uniforms.radius.value = shadow.radius; + _renderer.setRenderTarget( shadow.map ); + _renderer.clear(); + _renderer.renderBufferDirect( camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null ); + + } + + function getDepthMaterialVariant( useMorphing, useSkinning, useInstancing ) { + + const index = useMorphing << 0 | useSkinning << 1 | useInstancing << 2; + + let material = _depthMaterials[ index ]; + + if ( material === undefined ) { + + material = new MeshDepthMaterial( { + + depthPacking: RGBADepthPacking, + + morphTargets: useMorphing, + skinning: useSkinning + + } ); + + _depthMaterials[ index ] = material; + + } + + return material; + + } + + function getDistanceMaterialVariant( useMorphing, useSkinning, useInstancing ) { + + const index = useMorphing << 0 | useSkinning << 1 | useInstancing << 2; + + let material = _distanceMaterials[ index ]; + + if ( material === undefined ) { + + material = new MeshDistanceMaterial( { + + morphTargets: useMorphing, + skinning: useSkinning + + } ); + + _distanceMaterials[ index ] = material; + + } + + return material; + + } + + function getDepthMaterial( object, geometry, material, light, shadowCameraNear, shadowCameraFar, type ) { + + let result = null; + + let getMaterialVariant = getDepthMaterialVariant; + let customMaterial = object.customDepthMaterial; + + if ( light.isPointLight === true ) { + + getMaterialVariant = getDistanceMaterialVariant; + customMaterial = object.customDistanceMaterial; + + } + + if ( customMaterial === undefined ) { + + let useMorphing = false; + + if ( material.morphTargets === true ) { + + useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0; + + } + + let useSkinning = false; + + if ( object.isSkinnedMesh === true ) { + + if ( material.skinning === true ) { + + useSkinning = true; + + } else { + + console.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object ); + + } + + } + + const useInstancing = object.isInstancedMesh === true; + + result = getMaterialVariant( useMorphing, useSkinning, useInstancing ); + + } else { + + result = customMaterial; + + } + + if ( _renderer.localClippingEnabled && + material.clipShadows === true && + material.clippingPlanes.length !== 0 ) { + + // in this case we need a unique material instance reflecting the + // appropriate state + + const keyA = result.uuid, keyB = material.uuid; + + let materialsForVariant = _materialCache[ keyA ]; + + if ( materialsForVariant === undefined ) { + + materialsForVariant = {}; + _materialCache[ keyA ] = materialsForVariant; + + } + + let cachedMaterial = materialsForVariant[ keyB ]; + + if ( cachedMaterial === undefined ) { + + cachedMaterial = result.clone(); + materialsForVariant[ keyB ] = cachedMaterial; + + } + + result = cachedMaterial; + + } + + result.visible = material.visible; + result.wireframe = material.wireframe; + + if ( type === VSMShadowMap ) { + + result.side = ( material.shadowSide !== null ) ? material.shadowSide : material.side; + + } else { + + result.side = ( material.shadowSide !== null ) ? material.shadowSide : shadowSide[ material.side ]; + + } + + result.clipShadows = material.clipShadows; + result.clippingPlanes = material.clippingPlanes; + result.clipIntersection = material.clipIntersection; + + result.wireframeLinewidth = material.wireframeLinewidth; + result.linewidth = material.linewidth; + + if ( light.isPointLight === true && result.isMeshDistanceMaterial === true ) { + + result.referencePosition.setFromMatrixPosition( light.matrixWorld ); + result.nearDistance = shadowCameraNear; + result.farDistance = shadowCameraFar; + + } + + return result; + + } + + function renderObject( object, camera, shadowCamera, light, type ) { + + if ( object.visible === false ) return; + + const visible = object.layers.test( camera.layers ); + + if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) { + + if ( ( object.castShadow || ( object.receiveShadow && type === VSMShadowMap ) ) && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) { + + object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld ); + + const geometry = _objects.update( object ); + const material = object.material; + + if ( Array.isArray( material ) ) { + + const groups = geometry.groups; + + for ( let k = 0, kl = groups.length; k < kl; k ++ ) { + + const group = groups[ k ]; + const groupMaterial = material[ group.materialIndex ]; + + if ( groupMaterial && groupMaterial.visible ) { + + const depthMaterial = getDepthMaterial( object, geometry, groupMaterial, light, shadowCamera.near, shadowCamera.far, type ); + + _renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group ); + + } + + } + + } else if ( material.visible ) { + + const depthMaterial = getDepthMaterial( object, geometry, material, light, shadowCamera.near, shadowCamera.far, type ); + + _renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null ); + + } + + } + + } + + const children = object.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + renderObject( children[ i ], camera, shadowCamera, light, type ); + + } + + } + +} + +function WebGLState( gl, extensions, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + function ColorBuffer() { + + let locked = false; + + const color = new Vector4(); + let currentColorMask = null; + const currentColorClear = new Vector4( 0, 0, 0, 0 ); + + return { + + setMask: function ( colorMask ) { + + if ( currentColorMask !== colorMask && ! locked ) { + + gl.colorMask( colorMask, colorMask, colorMask, colorMask ); + currentColorMask = colorMask; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( r, g, b, a, premultipliedAlpha ) { + + if ( premultipliedAlpha === true ) { + + r *= a; g *= a; b *= a; + + } + + color.set( r, g, b, a ); + + if ( currentColorClear.equals( color ) === false ) { + + gl.clearColor( r, g, b, a ); + currentColorClear.copy( color ); + + } + + }, + + reset: function () { + + locked = false; + + currentColorMask = null; + currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state + + } + + }; + + } + + function DepthBuffer() { + + let locked = false; + + let currentDepthMask = null; + let currentDepthFunc = null; + let currentDepthClear = null; + + return { + + setTest: function ( depthTest ) { + + if ( depthTest ) { + + enable( 2929 ); + + } else { + + disable( 2929 ); + + } + + }, + + setMask: function ( depthMask ) { + + if ( currentDepthMask !== depthMask && ! locked ) { + + gl.depthMask( depthMask ); + currentDepthMask = depthMask; + + } + + }, + + setFunc: function ( depthFunc ) { + + if ( currentDepthFunc !== depthFunc ) { + + if ( depthFunc ) { + + switch ( depthFunc ) { + + case NeverDepth: + + gl.depthFunc( 512 ); + break; + + case AlwaysDepth: + + gl.depthFunc( 519 ); + break; + + case LessDepth: + + gl.depthFunc( 513 ); + break; + + case LessEqualDepth: + + gl.depthFunc( 515 ); + break; + + case EqualDepth: + + gl.depthFunc( 514 ); + break; + + case GreaterEqualDepth: + + gl.depthFunc( 518 ); + break; + + case GreaterDepth: + + gl.depthFunc( 516 ); + break; + + case NotEqualDepth: + + gl.depthFunc( 517 ); + break; + + default: + + gl.depthFunc( 515 ); + + } + + } else { + + gl.depthFunc( 515 ); + + } + + currentDepthFunc = depthFunc; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( depth ) { + + if ( currentDepthClear !== depth ) { + + gl.clearDepth( depth ); + currentDepthClear = depth; + + } + + }, + + reset: function () { + + locked = false; + + currentDepthMask = null; + currentDepthFunc = null; + currentDepthClear = null; + + } + + }; + + } + + function StencilBuffer() { + + let locked = false; + + let currentStencilMask = null; + let currentStencilFunc = null; + let currentStencilRef = null; + let currentStencilFuncMask = null; + let currentStencilFail = null; + let currentStencilZFail = null; + let currentStencilZPass = null; + let currentStencilClear = null; + + return { + + setTest: function ( stencilTest ) { + + if ( ! locked ) { + + if ( stencilTest ) { + + enable( 2960 ); + + } else { + + disable( 2960 ); + + } + + } + + }, + + setMask: function ( stencilMask ) { + + if ( currentStencilMask !== stencilMask && ! locked ) { + + gl.stencilMask( stencilMask ); + currentStencilMask = stencilMask; + + } + + }, + + setFunc: function ( stencilFunc, stencilRef, stencilMask ) { + + if ( currentStencilFunc !== stencilFunc || + currentStencilRef !== stencilRef || + currentStencilFuncMask !== stencilMask ) { + + gl.stencilFunc( stencilFunc, stencilRef, stencilMask ); + + currentStencilFunc = stencilFunc; + currentStencilRef = stencilRef; + currentStencilFuncMask = stencilMask; + + } + + }, + + setOp: function ( stencilFail, stencilZFail, stencilZPass ) { + + if ( currentStencilFail !== stencilFail || + currentStencilZFail !== stencilZFail || + currentStencilZPass !== stencilZPass ) { + + gl.stencilOp( stencilFail, stencilZFail, stencilZPass ); + + currentStencilFail = stencilFail; + currentStencilZFail = stencilZFail; + currentStencilZPass = stencilZPass; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( stencil ) { + + if ( currentStencilClear !== stencil ) { + + gl.clearStencil( stencil ); + currentStencilClear = stencil; + + } + + }, + + reset: function () { + + locked = false; + + currentStencilMask = null; + currentStencilFunc = null; + currentStencilRef = null; + currentStencilFuncMask = null; + currentStencilFail = null; + currentStencilZFail = null; + currentStencilZPass = null; + currentStencilClear = null; + + } + + }; + + } + + // + + const colorBuffer = new ColorBuffer(); + const depthBuffer = new DepthBuffer(); + const stencilBuffer = new StencilBuffer(); + + let enabledCapabilities = {}; + + let currentProgram = null; + + let currentBlendingEnabled = null; + let currentBlending = null; + let currentBlendEquation = null; + let currentBlendSrc = null; + let currentBlendDst = null; + let currentBlendEquationAlpha = null; + let currentBlendSrcAlpha = null; + let currentBlendDstAlpha = null; + let currentPremultipledAlpha = false; + + let currentFlipSided = null; + let currentCullFace = null; + + let currentLineWidth = null; + + let currentPolygonOffsetFactor = null; + let currentPolygonOffsetUnits = null; + + const maxTextures = gl.getParameter( 35661 ); + + let lineWidthAvailable = false; + let version = 0; + const glVersion = gl.getParameter( 7938 ); + + if ( glVersion.indexOf( 'WebGL' ) !== - 1 ) { + + version = parseFloat( /^WebGL (\d)/.exec( glVersion )[ 1 ] ); + lineWidthAvailable = ( version >= 1.0 ); + + } else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) { + + version = parseFloat( /^OpenGL ES (\d)/.exec( glVersion )[ 1 ] ); + lineWidthAvailable = ( version >= 2.0 ); + + } + + let currentTextureSlot = null; + let currentBoundTextures = {}; + + const currentScissor = new Vector4(); + const currentViewport = new Vector4(); + + function createTexture( type, target, count ) { + + const data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4. + const texture = gl.createTexture(); + + gl.bindTexture( type, texture ); + gl.texParameteri( type, 10241, 9728 ); + gl.texParameteri( type, 10240, 9728 ); + + for ( let i = 0; i < count; i ++ ) { + + gl.texImage2D( target + i, 0, 6408, 1, 1, 0, 6408, 5121, data ); + + } + + return texture; + + } + + const emptyTextures = {}; + emptyTextures[ 3553 ] = createTexture( 3553, 3553, 1 ); + emptyTextures[ 34067 ] = createTexture( 34067, 34069, 6 ); + + // init + + colorBuffer.setClear( 0, 0, 0, 1 ); + depthBuffer.setClear( 1 ); + stencilBuffer.setClear( 0 ); + + enable( 2929 ); + depthBuffer.setFunc( LessEqualDepth ); + + setFlipSided( false ); + setCullFace( CullFaceBack ); + enable( 2884 ); + + setBlending( NoBlending ); + + // + + function enable( id ) { + + if ( enabledCapabilities[ id ] !== true ) { + + gl.enable( id ); + enabledCapabilities[ id ] = true; + + } + + } + + function disable( id ) { + + if ( enabledCapabilities[ id ] !== false ) { + + gl.disable( id ); + enabledCapabilities[ id ] = false; + + } + + } + + function useProgram( program ) { + + if ( currentProgram !== program ) { + + gl.useProgram( program ); + + currentProgram = program; + + return true; + + } + + return false; + + } + + const equationToGL = { + [ AddEquation ]: 32774, + [ SubtractEquation ]: 32778, + [ ReverseSubtractEquation ]: 32779 + }; + + if ( isWebGL2 ) { + + equationToGL[ MinEquation ] = 32775; + equationToGL[ MaxEquation ] = 32776; + + } else { + + const extension = extensions.get( 'EXT_blend_minmax' ); + + if ( extension !== null ) { + + equationToGL[ MinEquation ] = extension.MIN_EXT; + equationToGL[ MaxEquation ] = extension.MAX_EXT; + + } + + } + + const factorToGL = { + [ ZeroFactor ]: 0, + [ OneFactor ]: 1, + [ SrcColorFactor ]: 768, + [ SrcAlphaFactor ]: 770, + [ SrcAlphaSaturateFactor ]: 776, + [ DstColorFactor ]: 774, + [ DstAlphaFactor ]: 772, + [ OneMinusSrcColorFactor ]: 769, + [ OneMinusSrcAlphaFactor ]: 771, + [ OneMinusDstColorFactor ]: 775, + [ OneMinusDstAlphaFactor ]: 773 + }; + + function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) { + + if ( blending === NoBlending ) { + + if ( currentBlendingEnabled ) { + + disable( 3042 ); + currentBlendingEnabled = false; + + } + + return; + + } + + if ( ! currentBlendingEnabled ) { + + enable( 3042 ); + currentBlendingEnabled = true; + + } + + if ( blending !== CustomBlending ) { + + if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) { + + if ( currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation ) { + + gl.blendEquation( 32774 ); + + currentBlendEquation = AddEquation; + currentBlendEquationAlpha = AddEquation; + + } + + if ( premultipliedAlpha ) { + + switch ( blending ) { + + case NormalBlending: + gl.blendFuncSeparate( 1, 771, 1, 771 ); + break; + + case AdditiveBlending: + gl.blendFunc( 1, 1 ); + break; + + case SubtractiveBlending: + gl.blendFuncSeparate( 0, 0, 769, 771 ); + break; + + case MultiplyBlending: + gl.blendFuncSeparate( 0, 768, 0, 770 ); + break; + + default: + console.error( 'THREE.WebGLState: Invalid blending: ', blending ); + break; + + } + + } else { + + switch ( blending ) { + + case NormalBlending: + gl.blendFuncSeparate( 770, 771, 1, 771 ); + break; + + case AdditiveBlending: + gl.blendFunc( 770, 1 ); + break; + + case SubtractiveBlending: + gl.blendFunc( 0, 769 ); + break; + + case MultiplyBlending: + gl.blendFunc( 0, 768 ); + break; + + default: + console.error( 'THREE.WebGLState: Invalid blending: ', blending ); + break; + + } + + } + + currentBlendSrc = null; + currentBlendDst = null; + currentBlendSrcAlpha = null; + currentBlendDstAlpha = null; + + currentBlending = blending; + currentPremultipledAlpha = premultipliedAlpha; + + } + + return; + + } + + // custom blending + + blendEquationAlpha = blendEquationAlpha || blendEquation; + blendSrcAlpha = blendSrcAlpha || blendSrc; + blendDstAlpha = blendDstAlpha || blendDst; + + if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) { + + gl.blendEquationSeparate( equationToGL[ blendEquation ], equationToGL[ blendEquationAlpha ] ); + + currentBlendEquation = blendEquation; + currentBlendEquationAlpha = blendEquationAlpha; + + } + + if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) { + + gl.blendFuncSeparate( factorToGL[ blendSrc ], factorToGL[ blendDst ], factorToGL[ blendSrcAlpha ], factorToGL[ blendDstAlpha ] ); + + currentBlendSrc = blendSrc; + currentBlendDst = blendDst; + currentBlendSrcAlpha = blendSrcAlpha; + currentBlendDstAlpha = blendDstAlpha; + + } + + currentBlending = blending; + currentPremultipledAlpha = null; + + } + + function setMaterial( material, frontFaceCW ) { + + material.side === DoubleSide + ? disable( 2884 ) + : enable( 2884 ); + + let flipSided = ( material.side === BackSide ); + if ( frontFaceCW ) flipSided = ! flipSided; + + setFlipSided( flipSided ); + + ( material.blending === NormalBlending && material.transparent === false ) + ? setBlending( NoBlending ) + : setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha ); + + depthBuffer.setFunc( material.depthFunc ); + depthBuffer.setTest( material.depthTest ); + depthBuffer.setMask( material.depthWrite ); + colorBuffer.setMask( material.colorWrite ); + + const stencilWrite = material.stencilWrite; + stencilBuffer.setTest( stencilWrite ); + if ( stencilWrite ) { + + stencilBuffer.setMask( material.stencilWriteMask ); + stencilBuffer.setFunc( material.stencilFunc, material.stencilRef, material.stencilFuncMask ); + stencilBuffer.setOp( material.stencilFail, material.stencilZFail, material.stencilZPass ); + + } + + setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits ); + + } + + // + + function setFlipSided( flipSided ) { + + if ( currentFlipSided !== flipSided ) { + + if ( flipSided ) { + + gl.frontFace( 2304 ); + + } else { + + gl.frontFace( 2305 ); + + } + + currentFlipSided = flipSided; + + } + + } + + function setCullFace( cullFace ) { + + if ( cullFace !== CullFaceNone ) { + + enable( 2884 ); + + if ( cullFace !== currentCullFace ) { + + if ( cullFace === CullFaceBack ) { + + gl.cullFace( 1029 ); + + } else if ( cullFace === CullFaceFront ) { + + gl.cullFace( 1028 ); + + } else { + + gl.cullFace( 1032 ); + + } + + } + + } else { + + disable( 2884 ); + + } + + currentCullFace = cullFace; + + } + + function setLineWidth( width ) { + + if ( width !== currentLineWidth ) { + + if ( lineWidthAvailable ) gl.lineWidth( width ); + + currentLineWidth = width; + + } + + } + + function setPolygonOffset( polygonOffset, factor, units ) { + + if ( polygonOffset ) { + + enable( 32823 ); + + if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) { + + gl.polygonOffset( factor, units ); + + currentPolygonOffsetFactor = factor; + currentPolygonOffsetUnits = units; + + } + + } else { + + disable( 32823 ); + + } + + } + + function setScissorTest( scissorTest ) { + + if ( scissorTest ) { + + enable( 3089 ); + + } else { + + disable( 3089 ); + + } + + } + + // texture + + function activeTexture( webglSlot ) { + + if ( webglSlot === undefined ) webglSlot = 33984 + maxTextures - 1; + + if ( currentTextureSlot !== webglSlot ) { + + gl.activeTexture( webglSlot ); + currentTextureSlot = webglSlot; + + } + + } + + function bindTexture( webglType, webglTexture ) { + + if ( currentTextureSlot === null ) { + + activeTexture(); + + } + + let boundTexture = currentBoundTextures[ currentTextureSlot ]; + + if ( boundTexture === undefined ) { + + boundTexture = { type: undefined, texture: undefined }; + currentBoundTextures[ currentTextureSlot ] = boundTexture; + + } + + if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) { + + gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] ); + + boundTexture.type = webglType; + boundTexture.texture = webglTexture; + + } + + } + + function unbindTexture() { + + const boundTexture = currentBoundTextures[ currentTextureSlot ]; + + if ( boundTexture !== undefined && boundTexture.type !== undefined ) { + + gl.bindTexture( boundTexture.type, null ); + + boundTexture.type = undefined; + boundTexture.texture = undefined; + + } + + } + + function compressedTexImage2D() { + + try { + + gl.compressedTexImage2D.apply( gl, arguments ); + + } catch ( error ) { + + console.error( 'THREE.WebGLState:', error ); + + } + + } + + function texImage2D() { + + try { + + gl.texImage2D.apply( gl, arguments ); + + } catch ( error ) { + + console.error( 'THREE.WebGLState:', error ); + + } + + } + + function texImage3D() { + + try { + + gl.texImage3D.apply( gl, arguments ); + + } catch ( error ) { + + console.error( 'THREE.WebGLState:', error ); + + } + + } + + // + + function scissor( scissor ) { + + if ( currentScissor.equals( scissor ) === false ) { + + gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w ); + currentScissor.copy( scissor ); + + } + + } + + function viewport( viewport ) { + + if ( currentViewport.equals( viewport ) === false ) { + + gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w ); + currentViewport.copy( viewport ); + + } + + } + + // + + function reset() { + + enabledCapabilities = {}; + + currentTextureSlot = null; + currentBoundTextures = {}; + + currentProgram = null; + + currentBlendingEnabled = null; + currentBlending = null; + currentBlendEquation = null; + currentBlendSrc = null; + currentBlendDst = null; + currentBlendEquationAlpha = null; + currentBlendSrcAlpha = null; + currentBlendDstAlpha = null; + currentPremultipledAlpha = false; + + currentFlipSided = null; + currentCullFace = null; + + currentLineWidth = null; + + currentPolygonOffsetFactor = null; + currentPolygonOffsetUnits = null; + + colorBuffer.reset(); + depthBuffer.reset(); + stencilBuffer.reset(); + + } + + return { + + buffers: { + color: colorBuffer, + depth: depthBuffer, + stencil: stencilBuffer + }, + + enable: enable, + disable: disable, + + useProgram: useProgram, + + setBlending: setBlending, + setMaterial: setMaterial, + + setFlipSided: setFlipSided, + setCullFace: setCullFace, + + setLineWidth: setLineWidth, + setPolygonOffset: setPolygonOffset, + + setScissorTest: setScissorTest, + + activeTexture: activeTexture, + bindTexture: bindTexture, + unbindTexture: unbindTexture, + compressedTexImage2D: compressedTexImage2D, + texImage2D: texImage2D, + texImage3D: texImage3D, + + scissor: scissor, + viewport: viewport, + + reset: reset + + }; + +} + +function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ) { + + const isWebGL2 = capabilities.isWebGL2; + const maxTextures = capabilities.maxTextures; + const maxCubemapSize = capabilities.maxCubemapSize; + const maxTextureSize = capabilities.maxTextureSize; + const maxSamples = capabilities.maxSamples; + + const _videoTextures = new WeakMap(); + let _canvas; + + // cordova iOS (as of 5.0) still uses UIWebView, which provides OffscreenCanvas, + // also OffscreenCanvas.getContext("webgl"), but not OffscreenCanvas.getContext("2d")! + // Some implementations may only implement OffscreenCanvas partially (e.g. lacking 2d). + + let useOffscreenCanvas = false; + + try { + + useOffscreenCanvas = typeof OffscreenCanvas !== 'undefined' + && ( new OffscreenCanvas( 1, 1 ).getContext( '2d' ) ) !== null; + + } catch ( err ) { + + // Ignore any errors + + } + + function createCanvas( width, height ) { + + // Use OffscreenCanvas when available. Specially needed in web workers + + return useOffscreenCanvas ? + new OffscreenCanvas( width, height ) : + document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); + + } + + function resizeImage( image, needsPowerOfTwo, needsNewCanvas, maxSize ) { + + let scale = 1; + + // handle case if texture exceeds max size + + if ( image.width > maxSize || image.height > maxSize ) { + + scale = maxSize / Math.max( image.width, image.height ); + + } + + // only perform resize if necessary + + if ( scale < 1 || needsPowerOfTwo === true ) { + + // only perform resize for certain image types + + if ( ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) || + ( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement ) || + ( typeof ImageBitmap !== 'undefined' && image instanceof ImageBitmap ) ) { + + const floor = needsPowerOfTwo ? MathUtils.floorPowerOfTwo : Math.floor; + + const width = floor( scale * image.width ); + const height = floor( scale * image.height ); + + if ( _canvas === undefined ) _canvas = createCanvas( width, height ); + + // cube textures can't reuse the same canvas + + const canvas = needsNewCanvas ? createCanvas( width, height ) : _canvas; + + canvas.width = width; + canvas.height = height; + + const context = canvas.getContext( '2d' ); + context.drawImage( image, 0, 0, width, height ); + + console.warn( 'THREE.WebGLRenderer: Texture has been resized from (' + image.width + 'x' + image.height + ') to (' + width + 'x' + height + ').' ); + + return canvas; + + } else { + + if ( 'data' in image ) { + + console.warn( 'THREE.WebGLRenderer: Image in DataTexture is too big (' + image.width + 'x' + image.height + ').' ); + + } + + return image; + + } + + } + + return image; + + } + + function isPowerOfTwo( image ) { + + return MathUtils.isPowerOfTwo( image.width ) && MathUtils.isPowerOfTwo( image.height ); + + } + + function textureNeedsPowerOfTwo( texture ) { + + if ( isWebGL2 ) return false; + + return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) || + ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ); + + } + + function textureNeedsGenerateMipmaps( texture, supportsMips ) { + + return texture.generateMipmaps && supportsMips && + texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter; + + } + + function generateMipmap( target, texture, width, height ) { + + _gl.generateMipmap( target ); + + const textureProperties = properties.get( texture ); + + // Note: Math.log( x ) * Math.LOG2E used instead of Math.log2( x ) which is not supported by IE11 + textureProperties.__maxMipLevel = Math.log( Math.max( width, height ) ) * Math.LOG2E; + + } + + function getInternalFormat( internalFormatName, glFormat, glType ) { + + if ( isWebGL2 === false ) return glFormat; + + if ( internalFormatName !== null ) { + + if ( _gl[ internalFormatName ] !== undefined ) return _gl[ internalFormatName ]; + + console.warn( 'THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \'' + internalFormatName + '\'' ); + + } + + let internalFormat = glFormat; + + if ( glFormat === 6403 ) { + + if ( glType === 5126 ) internalFormat = 33326; + if ( glType === 5131 ) internalFormat = 33325; + if ( glType === 5121 ) internalFormat = 33321; + + } + + if ( glFormat === 6407 ) { + + if ( glType === 5126 ) internalFormat = 34837; + if ( glType === 5131 ) internalFormat = 34843; + if ( glType === 5121 ) internalFormat = 32849; + + } + + if ( glFormat === 6408 ) { + + if ( glType === 5126 ) internalFormat = 34836; + if ( glType === 5131 ) internalFormat = 34842; + if ( glType === 5121 ) internalFormat = 32856; + + } + + if ( internalFormat === 33325 || internalFormat === 33326 || + internalFormat === 34842 || internalFormat === 34836 ) { + + extensions.get( 'EXT_color_buffer_float' ); + + } + + return internalFormat; + + } + + // Fallback filters for non-power-of-2 textures + + function filterFallback( f ) { + + if ( f === NearestFilter || f === NearestMipmapNearestFilter || f === NearestMipmapLinearFilter ) { + + return 9728; + + } + + return 9729; + + } + + // + + function onTextureDispose( event ) { + + const texture = event.target; + + texture.removeEventListener( 'dispose', onTextureDispose ); + + deallocateTexture( texture ); + + if ( texture.isVideoTexture ) { + + _videoTextures.delete( texture ); + + } + + info.memory.textures --; + + } + + function onRenderTargetDispose( event ) { + + const renderTarget = event.target; + + renderTarget.removeEventListener( 'dispose', onRenderTargetDispose ); + + deallocateRenderTarget( renderTarget ); + + info.memory.textures --; + + } + + // + + function deallocateTexture( texture ) { + + const textureProperties = properties.get( texture ); + + if ( textureProperties.__webglInit === undefined ) return; + + _gl.deleteTexture( textureProperties.__webglTexture ); + + properties.remove( texture ); + + } + + function deallocateRenderTarget( renderTarget ) { + + const renderTargetProperties = properties.get( renderTarget ); + const textureProperties = properties.get( renderTarget.texture ); + + if ( ! renderTarget ) return; + + if ( textureProperties.__webglTexture !== undefined ) { + + _gl.deleteTexture( textureProperties.__webglTexture ); + + } + + if ( renderTarget.depthTexture ) { + + renderTarget.depthTexture.dispose(); + + } + + if ( renderTarget.isWebGLCubeRenderTarget ) { + + for ( let i = 0; i < 6; i ++ ) { + + _gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] ); + if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] ); + + } + + } else { + + _gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer ); + if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer ); + if ( renderTargetProperties.__webglMultisampledFramebuffer ) _gl.deleteFramebuffer( renderTargetProperties.__webglMultisampledFramebuffer ); + if ( renderTargetProperties.__webglColorRenderbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglColorRenderbuffer ); + if ( renderTargetProperties.__webglDepthRenderbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthRenderbuffer ); + + } + + properties.remove( renderTarget.texture ); + properties.remove( renderTarget ); + + } + + // + + let textureUnits = 0; + + function resetTextureUnits() { + + textureUnits = 0; + + } + + function allocateTextureUnit() { + + const textureUnit = textureUnits; + + if ( textureUnit >= maxTextures ) { + + console.warn( 'THREE.WebGLTextures: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + maxTextures ); + + } + + textureUnits += 1; + + return textureUnit; + + } + + // + + function setTexture2D( texture, slot ) { + + const textureProperties = properties.get( texture ); + + if ( texture.isVideoTexture ) updateVideoTexture( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + const image = texture.image; + + if ( image === undefined ) { + + console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined' ); + + } else if ( image.complete === false ) { + + console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete' ); + + } else { + + uploadTexture( textureProperties, texture, slot ); + return; + + } + + } + + state.activeTexture( 33984 + slot ); + state.bindTexture( 3553, textureProperties.__webglTexture ); + + } + + function setTexture2DArray( texture, slot ) { + + const textureProperties = properties.get( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + uploadTexture( textureProperties, texture, slot ); + return; + + } + + state.activeTexture( 33984 + slot ); + state.bindTexture( 35866, textureProperties.__webglTexture ); + + } + + function setTexture3D( texture, slot ) { + + const textureProperties = properties.get( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + uploadTexture( textureProperties, texture, slot ); + return; + + } + + state.activeTexture( 33984 + slot ); + state.bindTexture( 32879, textureProperties.__webglTexture ); + + } + + function setTextureCube( texture, slot ) { + + const textureProperties = properties.get( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + uploadCubeTexture( textureProperties, texture, slot ); + return; + + } + + state.activeTexture( 33984 + slot ); + state.bindTexture( 34067, textureProperties.__webglTexture ); + + } + + const wrappingToGL = { + [ RepeatWrapping ]: 10497, + [ ClampToEdgeWrapping ]: 33071, + [ MirroredRepeatWrapping ]: 33648 + }; + + const filterToGL = { + [ NearestFilter ]: 9728, + [ NearestMipmapNearestFilter ]: 9984, + [ NearestMipmapLinearFilter ]: 9986, + + [ LinearFilter ]: 9729, + [ LinearMipmapNearestFilter ]: 9985, + [ LinearMipmapLinearFilter ]: 9987 + }; + + function setTextureParameters( textureType, texture, supportsMips ) { + + if ( supportsMips ) { + + _gl.texParameteri( textureType, 10242, wrappingToGL[ texture.wrapS ] ); + _gl.texParameteri( textureType, 10243, wrappingToGL[ texture.wrapT ] ); + + if ( textureType === 32879 || textureType === 35866 ) { + + _gl.texParameteri( textureType, 32882, wrappingToGL[ texture.wrapR ] ); + + } + + _gl.texParameteri( textureType, 10240, filterToGL[ texture.magFilter ] ); + _gl.texParameteri( textureType, 10241, filterToGL[ texture.minFilter ] ); + + } else { + + _gl.texParameteri( textureType, 10242, 33071 ); + _gl.texParameteri( textureType, 10243, 33071 ); + + if ( textureType === 32879 || textureType === 35866 ) { + + _gl.texParameteri( textureType, 32882, 33071 ); + + } + + if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) { + + console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.' ); + + } + + _gl.texParameteri( textureType, 10240, filterFallback( texture.magFilter ) ); + _gl.texParameteri( textureType, 10241, filterFallback( texture.minFilter ) ); + + if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) { + + console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.' ); + + } + + } + + const extension = extensions.get( 'EXT_texture_filter_anisotropic' ); + + if ( extension ) { + + if ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return; + if ( texture.type === HalfFloatType && ( isWebGL2 || extensions.get( 'OES_texture_half_float_linear' ) ) === null ) return; + + if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) { + + _gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) ); + properties.get( texture ).__currentAnisotropy = texture.anisotropy; + + } + + } + + } + + function initTexture( textureProperties, texture ) { + + if ( textureProperties.__webglInit === undefined ) { + + textureProperties.__webglInit = true; + + texture.addEventListener( 'dispose', onTextureDispose ); + + textureProperties.__webglTexture = _gl.createTexture(); + + info.memory.textures ++; + + } + + } + + function uploadTexture( textureProperties, texture, slot ) { + + let textureType = 3553; + + if ( texture.isDataTexture2DArray ) textureType = 35866; + if ( texture.isDataTexture3D ) textureType = 32879; + + initTexture( textureProperties, texture ); + + state.activeTexture( 33984 + slot ); + state.bindTexture( textureType, textureProperties.__webglTexture ); + + _gl.pixelStorei( 37440, texture.flipY ); + _gl.pixelStorei( 37441, texture.premultiplyAlpha ); + _gl.pixelStorei( 3317, texture.unpackAlignment ); + + const needsPowerOfTwo = textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( texture.image ) === false; + const image = resizeImage( texture.image, needsPowerOfTwo, false, maxTextureSize ); + + const supportsMips = isPowerOfTwo( image ) || isWebGL2, + glFormat = utils.convert( texture.format ); + + let glType = utils.convert( texture.type ), + glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType ); + + setTextureParameters( textureType, texture, supportsMips ); + + let mipmap; + const mipmaps = texture.mipmaps; + + if ( texture.isDepthTexture ) { + + // populate depth texture with dummy data + + glInternalFormat = 6402; + + if ( isWebGL2 ) { + + if ( texture.type === FloatType ) { + + glInternalFormat = 36012; + + } else if ( texture.type === UnsignedIntType ) { + + glInternalFormat = 33190; + + } else if ( texture.type === UnsignedInt248Type ) { + + glInternalFormat = 35056; + + } else { + + glInternalFormat = 33189; // WebGL2 requires sized internalformat for glTexImage2D + + } + + } else { + + if ( texture.type === FloatType ) { + + console.error( 'WebGLRenderer: Floating point depth texture requires WebGL2.' ); + + } + + } + + // validation checks for WebGL 1 + + if ( texture.format === DepthFormat && glInternalFormat === 6402 ) { + + // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are + // DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT + // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/) + if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) { + + console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' ); + + texture.type = UnsignedShortType; + glType = utils.convert( texture.type ); + + } + + } + + if ( texture.format === DepthStencilFormat && glInternalFormat === 6402 ) { + + // Depth stencil textures need the DEPTH_STENCIL internal format + // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/) + glInternalFormat = 34041; + + // The error INVALID_OPERATION is generated by texImage2D if format and internalformat are + // DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL. + // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/) + if ( texture.type !== UnsignedInt248Type ) { + + console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' ); + + texture.type = UnsignedInt248Type; + glType = utils.convert( texture.type ); + + } + + } + + // + + state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null ); + + } else if ( texture.isDataTexture ) { + + // use manually created mipmaps if available + // if there are no manual mipmaps + // set 0 level mipmap and then use GL to generate other mipmap levels + + if ( mipmaps.length > 0 && supportsMips ) { + + for ( let i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + texture.generateMipmaps = false; + textureProperties.__maxMipLevel = mipmaps.length - 1; + + } else { + + state.texImage2D( 3553, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data ); + textureProperties.__maxMipLevel = 0; + + } + + } else if ( texture.isCompressedTexture ) { + + for ( let i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + + if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) { + + if ( glFormat !== null ) { + + state.compressedTexImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data ); + + } else { + + console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' ); + + } + + } else { + + state.texImage2D( 3553, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + } + + textureProperties.__maxMipLevel = mipmaps.length - 1; + + } else if ( texture.isDataTexture2DArray ) { + + state.texImage3D( 35866, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data ); + textureProperties.__maxMipLevel = 0; + + } else if ( texture.isDataTexture3D ) { + + state.texImage3D( 32879, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data ); + textureProperties.__maxMipLevel = 0; + + } else { + + // regular Texture (image, video, canvas) + + // use manually created mipmaps if available + // if there are no manual mipmaps + // set 0 level mipmap and then use GL to generate other mipmap levels + + if ( mipmaps.length > 0 && supportsMips ) { + + for ( let i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + state.texImage2D( 3553, i, glInternalFormat, glFormat, glType, mipmap ); + + } + + texture.generateMipmaps = false; + textureProperties.__maxMipLevel = mipmaps.length - 1; + + } else { + + state.texImage2D( 3553, 0, glInternalFormat, glFormat, glType, image ); + textureProperties.__maxMipLevel = 0; + + } + + } + + if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) { + + generateMipmap( textureType, texture, image.width, image.height ); + + } + + textureProperties.__version = texture.version; + + if ( texture.onUpdate ) texture.onUpdate( texture ); + + } + + function uploadCubeTexture( textureProperties, texture, slot ) { + + if ( texture.image.length !== 6 ) return; + + initTexture( textureProperties, texture ); + + state.activeTexture( 33984 + slot ); + state.bindTexture( 34067, textureProperties.__webglTexture ); + + _gl.pixelStorei( 37440, texture.flipY ); + + const isCompressed = ( texture && ( texture.isCompressedTexture || texture.image[ 0 ].isCompressedTexture ) ); + const isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture ); + + const cubeImage = []; + + for ( let i = 0; i < 6; i ++ ) { + + if ( ! isCompressed && ! isDataTexture ) { + + cubeImage[ i ] = resizeImage( texture.image[ i ], false, true, maxCubemapSize ); + + } else { + + cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ]; + + } + + } + + const image = cubeImage[ 0 ], + supportsMips = isPowerOfTwo( image ) || isWebGL2, + glFormat = utils.convert( texture.format ), + glType = utils.convert( texture.type ), + glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType ); + + setTextureParameters( 34067, texture, supportsMips ); + + let mipmaps; + + if ( isCompressed ) { + + for ( let i = 0; i < 6; i ++ ) { + + mipmaps = cubeImage[ i ].mipmaps; + + for ( let j = 0; j < mipmaps.length; j ++ ) { + + const mipmap = mipmaps[ j ]; + + if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) { + + if ( glFormat !== null ) { + + state.compressedTexImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data ); + + } else { + + console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' ); + + } + + } else { + + state.texImage2D( 34069 + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + } + + } + + textureProperties.__maxMipLevel = mipmaps.length - 1; + + } else { + + mipmaps = texture.mipmaps; + + for ( let i = 0; i < 6; i ++ ) { + + if ( isDataTexture ) { + + state.texImage2D( 34069 + i, 0, glInternalFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data ); + + for ( let j = 0; j < mipmaps.length; j ++ ) { + + const mipmap = mipmaps[ j ]; + const mipmapImage = mipmap.image[ i ].image; + + state.texImage2D( 34069 + i, j + 1, glInternalFormat, mipmapImage.width, mipmapImage.height, 0, glFormat, glType, mipmapImage.data ); + + } + + } else { + + state.texImage2D( 34069 + i, 0, glInternalFormat, glFormat, glType, cubeImage[ i ] ); + + for ( let j = 0; j < mipmaps.length; j ++ ) { + + const mipmap = mipmaps[ j ]; + + state.texImage2D( 34069 + i, j + 1, glInternalFormat, glFormat, glType, mipmap.image[ i ] ); + + } + + } + + } + + textureProperties.__maxMipLevel = mipmaps.length; + + } + + if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) { + + // We assume images for cube map have the same size. + generateMipmap( 34067, texture, image.width, image.height ); + + } + + textureProperties.__version = texture.version; + + if ( texture.onUpdate ) texture.onUpdate( texture ); + + } + + // Render targets + + // Setup storage for target texture and bind it to correct framebuffer + function setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) { + + const glFormat = utils.convert( renderTarget.texture.format ); + const glType = utils.convert( renderTarget.texture.type ); + const glInternalFormat = getInternalFormat( renderTarget.texture.internalFormat, glFormat, glType ); + state.texImage2D( textureTarget, 0, glInternalFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null ); + _gl.bindFramebuffer( 36160, framebuffer ); + _gl.framebufferTexture2D( 36160, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 ); + _gl.bindFramebuffer( 36160, null ); + + } + + // Setup storage for internal depth/stencil buffers and bind to correct framebuffer + function setupRenderBufferStorage( renderbuffer, renderTarget, isMultisample ) { + + _gl.bindRenderbuffer( 36161, renderbuffer ); + + if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) { + + let glInternalFormat = 33189; + + if ( isMultisample ) { + + const depthTexture = renderTarget.depthTexture; + + if ( depthTexture && depthTexture.isDepthTexture ) { + + if ( depthTexture.type === FloatType ) { + + glInternalFormat = 36012; + + } else if ( depthTexture.type === UnsignedIntType ) { + + glInternalFormat = 33190; + + } + + } + + const samples = getRenderTargetSamples( renderTarget ); + + _gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height ); + + } else { + + _gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height ); + + } + + _gl.framebufferRenderbuffer( 36160, 36096, 36161, renderbuffer ); + + } else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) { + + if ( isMultisample ) { + + const samples = getRenderTargetSamples( renderTarget ); + + _gl.renderbufferStorageMultisample( 36161, samples, 35056, renderTarget.width, renderTarget.height ); + + } else { + + _gl.renderbufferStorage( 36161, 34041, renderTarget.width, renderTarget.height ); + + } + + + _gl.framebufferRenderbuffer( 36160, 33306, 36161, renderbuffer ); + + } else { + + const glFormat = utils.convert( renderTarget.texture.format ); + const glType = utils.convert( renderTarget.texture.type ); + const glInternalFormat = getInternalFormat( renderTarget.texture.internalFormat, glFormat, glType ); + + if ( isMultisample ) { + + const samples = getRenderTargetSamples( renderTarget ); + + _gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height ); + + } else { + + _gl.renderbufferStorage( 36161, glInternalFormat, renderTarget.width, renderTarget.height ); + + } + + } + + _gl.bindRenderbuffer( 36161, null ); + + } + + // Setup resources for a Depth Texture for a FBO (needs an extension) + function setupDepthTexture( framebuffer, renderTarget ) { + + const isCube = ( renderTarget && renderTarget.isWebGLCubeRenderTarget ); + if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' ); + + _gl.bindFramebuffer( 36160, framebuffer ); + + if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) { + + throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' ); + + } + + // upload an empty depth texture with framebuffer size + if ( ! properties.get( renderTarget.depthTexture ).__webglTexture || + renderTarget.depthTexture.image.width !== renderTarget.width || + renderTarget.depthTexture.image.height !== renderTarget.height ) { + + renderTarget.depthTexture.image.width = renderTarget.width; + renderTarget.depthTexture.image.height = renderTarget.height; + renderTarget.depthTexture.needsUpdate = true; + + } + + setTexture2D( renderTarget.depthTexture, 0 ); + + const webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture; + + if ( renderTarget.depthTexture.format === DepthFormat ) { + + _gl.framebufferTexture2D( 36160, 36096, 3553, webglDepthTexture, 0 ); + + } else if ( renderTarget.depthTexture.format === DepthStencilFormat ) { + + _gl.framebufferTexture2D( 36160, 33306, 3553, webglDepthTexture, 0 ); + + } else { + + throw new Error( 'Unknown depthTexture format' ); + + } + + } + + // Setup GL resources for a non-texture depth buffer + function setupDepthRenderbuffer( renderTarget ) { + + const renderTargetProperties = properties.get( renderTarget ); + + const isCube = ( renderTarget.isWebGLCubeRenderTarget === true ); + + if ( renderTarget.depthTexture ) { + + if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' ); + + setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget ); + + } else { + + if ( isCube ) { + + renderTargetProperties.__webglDepthbuffer = []; + + for ( let i = 0; i < 6; i ++ ) { + + _gl.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer[ i ] ); + renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer(); + setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget, false ); + + } + + } else { + + _gl.bindFramebuffer( 36160, renderTargetProperties.__webglFramebuffer ); + renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer(); + setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget, false ); + + } + + } + + _gl.bindFramebuffer( 36160, null ); + + } + + // Set up GL resources for the render target + function setupRenderTarget( renderTarget ) { + + const renderTargetProperties = properties.get( renderTarget ); + const textureProperties = properties.get( renderTarget.texture ); + + renderTarget.addEventListener( 'dispose', onRenderTargetDispose ); + + textureProperties.__webglTexture = _gl.createTexture(); + + info.memory.textures ++; + + const isCube = ( renderTarget.isWebGLCubeRenderTarget === true ); + const isMultisample = ( renderTarget.isWebGLMultisampleRenderTarget === true ); + const supportsMips = isPowerOfTwo( renderTarget ) || isWebGL2; + + // Handles WebGL2 RGBFormat fallback - #18858 + + if ( isWebGL2 && renderTarget.texture.format === RGBFormat && ( renderTarget.texture.type === FloatType || renderTarget.texture.type === HalfFloatType ) ) { + + renderTarget.texture.format = RGBAFormat; + + console.warn( 'THREE.WebGLRenderer: Rendering to textures with RGB format is not supported. Using RGBA format instead.' ); + + } + + // Setup framebuffer + + if ( isCube ) { + + renderTargetProperties.__webglFramebuffer = []; + + for ( let i = 0; i < 6; i ++ ) { + + renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer(); + + } + + } else { + + renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer(); + + if ( isMultisample ) { + + if ( isWebGL2 ) { + + renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer(); + renderTargetProperties.__webglColorRenderbuffer = _gl.createRenderbuffer(); + + _gl.bindRenderbuffer( 36161, renderTargetProperties.__webglColorRenderbuffer ); + + const glFormat = utils.convert( renderTarget.texture.format ); + const glType = utils.convert( renderTarget.texture.type ); + const glInternalFormat = getInternalFormat( renderTarget.texture.internalFormat, glFormat, glType ); + const samples = getRenderTargetSamples( renderTarget ); + _gl.renderbufferStorageMultisample( 36161, samples, glInternalFormat, renderTarget.width, renderTarget.height ); + + _gl.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer ); + _gl.framebufferRenderbuffer( 36160, 36064, 36161, renderTargetProperties.__webglColorRenderbuffer ); + _gl.bindRenderbuffer( 36161, null ); + + if ( renderTarget.depthBuffer ) { + + renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer(); + setupRenderBufferStorage( renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true ); + + } + + _gl.bindFramebuffer( 36160, null ); + + + } else { + + console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' ); + + } + + } + + } + + // Setup color buffer + + if ( isCube ) { + + state.bindTexture( 34067, textureProperties.__webglTexture ); + setTextureParameters( 34067, renderTarget.texture, supportsMips ); + + for ( let i = 0; i < 6; i ++ ) { + + setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, 36064, 34069 + i ); + + } + + if ( textureNeedsGenerateMipmaps( renderTarget.texture, supportsMips ) ) { + + generateMipmap( 34067, renderTarget.texture, renderTarget.width, renderTarget.height ); + + } + + state.bindTexture( 34067, null ); + + } else { + + state.bindTexture( 3553, textureProperties.__webglTexture ); + setTextureParameters( 3553, renderTarget.texture, supportsMips ); + setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, 36064, 3553 ); + + if ( textureNeedsGenerateMipmaps( renderTarget.texture, supportsMips ) ) { + + generateMipmap( 3553, renderTarget.texture, renderTarget.width, renderTarget.height ); + + } + + state.bindTexture( 3553, null ); + + } + + // Setup depth and stencil buffers + + if ( renderTarget.depthBuffer ) { + + setupDepthRenderbuffer( renderTarget ); + + } + + } + + function updateRenderTargetMipmap( renderTarget ) { + + const texture = renderTarget.texture; + const supportsMips = isPowerOfTwo( renderTarget ) || isWebGL2; + + if ( textureNeedsGenerateMipmaps( texture, supportsMips ) ) { + + const target = renderTarget.isWebGLCubeRenderTarget ? 34067 : 3553; + const webglTexture = properties.get( texture ).__webglTexture; + + state.bindTexture( target, webglTexture ); + generateMipmap( target, texture, renderTarget.width, renderTarget.height ); + state.bindTexture( target, null ); + + } + + } + + function updateMultisampleRenderTarget( renderTarget ) { + + if ( renderTarget.isWebGLMultisampleRenderTarget ) { + + if ( isWebGL2 ) { + + const renderTargetProperties = properties.get( renderTarget ); + + _gl.bindFramebuffer( 36008, renderTargetProperties.__webglMultisampledFramebuffer ); + _gl.bindFramebuffer( 36009, renderTargetProperties.__webglFramebuffer ); + + const width = renderTarget.width; + const height = renderTarget.height; + let mask = 16384; + + if ( renderTarget.depthBuffer ) mask |= 256; + if ( renderTarget.stencilBuffer ) mask |= 1024; + + _gl.blitFramebuffer( 0, 0, width, height, 0, 0, width, height, mask, 9728 ); + + _gl.bindFramebuffer( 36160, renderTargetProperties.__webglMultisampledFramebuffer ); // see #18905 + + } else { + + console.warn( 'THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.' ); + + } + + } + + } + + function getRenderTargetSamples( renderTarget ) { + + return ( isWebGL2 && renderTarget.isWebGLMultisampleRenderTarget ) ? + Math.min( maxSamples, renderTarget.samples ) : 0; + + } + + function updateVideoTexture( texture ) { + + const frame = info.render.frame; + + // Check the last frame we updated the VideoTexture + + if ( _videoTextures.get( texture ) !== frame ) { + + _videoTextures.set( texture, frame ); + texture.update(); + + } + + } + + // backwards compatibility + + let warnedTexture2D = false; + let warnedTextureCube = false; + + function safeSetTexture2D( texture, slot ) { + + if ( texture && texture.isWebGLRenderTarget ) { + + if ( warnedTexture2D === false ) { + + console.warn( 'THREE.WebGLTextures.safeSetTexture2D: don\'t use render targets as textures. Use their .texture property instead.' ); + warnedTexture2D = true; + + } + + texture = texture.texture; + + } + + setTexture2D( texture, slot ); + + } + + function safeSetTextureCube( texture, slot ) { + + if ( texture && texture.isWebGLCubeRenderTarget ) { + + if ( warnedTextureCube === false ) { + + console.warn( 'THREE.WebGLTextures.safeSetTextureCube: don\'t use cube render targets as textures. Use their .texture property instead.' ); + warnedTextureCube = true; + + } + + texture = texture.texture; + + } + + + setTextureCube( texture, slot ); + + } + + // + + this.allocateTextureUnit = allocateTextureUnit; + this.resetTextureUnits = resetTextureUnits; + + this.setTexture2D = setTexture2D; + this.setTexture2DArray = setTexture2DArray; + this.setTexture3D = setTexture3D; + this.setTextureCube = setTextureCube; + this.setupRenderTarget = setupRenderTarget; + this.updateRenderTargetMipmap = updateRenderTargetMipmap; + this.updateMultisampleRenderTarget = updateMultisampleRenderTarget; + + this.safeSetTexture2D = safeSetTexture2D; + this.safeSetTextureCube = safeSetTextureCube; + +} + +function WebGLUtils( gl, extensions, capabilities ) { + + const isWebGL2 = capabilities.isWebGL2; + + function convert( p ) { + + let extension; + + if ( p === UnsignedByteType ) return 5121; + if ( p === UnsignedShort4444Type ) return 32819; + if ( p === UnsignedShort5551Type ) return 32820; + if ( p === UnsignedShort565Type ) return 33635; + + if ( p === ByteType ) return 5120; + if ( p === ShortType ) return 5122; + if ( p === UnsignedShortType ) return 5123; + if ( p === IntType ) return 5124; + if ( p === UnsignedIntType ) return 5125; + if ( p === FloatType ) return 5126; + + if ( p === HalfFloatType ) { + + if ( isWebGL2 ) return 5131; + + extension = extensions.get( 'OES_texture_half_float' ); + + if ( extension !== null ) { + + return extension.HALF_FLOAT_OES; + + } else { + + return null; + + } + + } + + if ( p === AlphaFormat ) return 6406; + if ( p === RGBFormat ) return 6407; + if ( p === RGBAFormat ) return 6408; + if ( p === LuminanceFormat ) return 6409; + if ( p === LuminanceAlphaFormat ) return 6410; + if ( p === DepthFormat ) return 6402; + if ( p === DepthStencilFormat ) return 34041; + if ( p === RedFormat ) return 6403; + + // WebGL2 formats. + + if ( p === RedIntegerFormat ) return 36244; + if ( p === RGFormat ) return 33319; + if ( p === RGIntegerFormat ) return 33320; + if ( p === RGBIntegerFormat ) return 36248; + if ( p === RGBAIntegerFormat ) return 36249; + + if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || + p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_s3tc' ); + + if ( extension !== null ) { + + if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT; + if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT; + if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT; + if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT; + + } else { + + return null; + + } + + } + + if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || + p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' ); + + if ( extension !== null ) { + + if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG; + if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG; + if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; + if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG; + + } else { + + return null; + + } + + } + + if ( p === RGB_ETC1_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_etc1' ); + + if ( extension !== null ) { + + return extension.COMPRESSED_RGB_ETC1_WEBGL; + + } else { + + return null; + + } + + } + + if ( p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_etc' ); + + if ( extension !== null ) { + + if ( p === RGB_ETC2_Format ) return extension.COMPRESSED_RGB8_ETC2; + if ( p === RGBA_ETC2_EAC_Format ) return extension.COMPRESSED_RGBA8_ETC2_EAC; + + } + + } + + if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format || + p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format || + p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format || + p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format || + p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format || + p === SRGB8_ALPHA8_ASTC_4x4_Format || p === SRGB8_ALPHA8_ASTC_5x4_Format || p === SRGB8_ALPHA8_ASTC_5x5_Format || + p === SRGB8_ALPHA8_ASTC_6x5_Format || p === SRGB8_ALPHA8_ASTC_6x6_Format || p === SRGB8_ALPHA8_ASTC_8x5_Format || + p === SRGB8_ALPHA8_ASTC_8x6_Format || p === SRGB8_ALPHA8_ASTC_8x8_Format || p === SRGB8_ALPHA8_ASTC_10x5_Format || + p === SRGB8_ALPHA8_ASTC_10x6_Format || p === SRGB8_ALPHA8_ASTC_10x8_Format || p === SRGB8_ALPHA8_ASTC_10x10_Format || + p === SRGB8_ALPHA8_ASTC_12x10_Format || p === SRGB8_ALPHA8_ASTC_12x12_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_astc' ); + + if ( extension !== null ) { + + // TODO Complete? + + return p; + + } else { + + return null; + + } + + } + + if ( p === RGBA_BPTC_Format ) { + + extension = extensions.get( 'EXT_texture_compression_bptc' ); + + if ( extension !== null ) { + + // TODO Complete? + + return p; + + } else { + + return null; + + } + + } + + if ( p === UnsignedInt248Type ) { + + if ( isWebGL2 ) return 34042; + + extension = extensions.get( 'WEBGL_depth_texture' ); + + if ( extension !== null ) { + + return extension.UNSIGNED_INT_24_8_WEBGL; + + } else { + + return null; + + } + + } + + } + + return { convert: convert }; + +} + +function ArrayCamera( array = [] ) { + + PerspectiveCamera.call( this ); + + this.cameras = array; + +} + +ArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), { + + constructor: ArrayCamera, + + isArrayCamera: true + +} ); + +function Group() { + + Object3D.call( this ); + + this.type = 'Group'; + +} + +Group.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Group, + + isGroup: true + +} ); + +function WebXRController() { + + this._targetRay = null; + this._grip = null; + this._hand = null; + +} + +Object.assign( WebXRController.prototype, { + + constructor: WebXRController, + + getHandSpace: function () { + + if ( this._hand === null ) { + + this._hand = new Group(); + this._hand.matrixAutoUpdate = false; + this._hand.visible = false; + + this._hand.joints = []; + this._hand.inputState = { pinching: false }; + + if ( window.XRHand ) { + + for ( let i = 0; i <= window.XRHand.LITTLE_PHALANX_TIP; i ++ ) { + + // The transform of this joint will be updated with the joint pose on each frame + const joint = new Group(); + joint.matrixAutoUpdate = false; + joint.visible = false; + this._hand.joints.push( joint ); + // ?? + this._hand.add( joint ); + + } + + } + + } + + return this._hand; + + }, + + getTargetRaySpace: function () { + + if ( this._targetRay === null ) { + + this._targetRay = new Group(); + this._targetRay.matrixAutoUpdate = false; + this._targetRay.visible = false; + + } + + return this._targetRay; + + }, + + getGripSpace: function () { + + if ( this._grip === null ) { + + this._grip = new Group(); + this._grip.matrixAutoUpdate = false; + this._grip.visible = false; + + } + + return this._grip; + + }, + + dispatchEvent: function ( event ) { + + if ( this._targetRay !== null ) { + + this._targetRay.dispatchEvent( event ); + + } + + if ( this._grip !== null ) { + + this._grip.dispatchEvent( event ); + + } + + if ( this._hand !== null ) { + + this._hand.dispatchEvent( event ); + + } + + return this; + + }, + + disconnect: function ( inputSource ) { + + this.dispatchEvent( { type: 'disconnected', data: inputSource } ); + + if ( this._targetRay !== null ) { + + this._targetRay.visible = false; + + } + + if ( this._grip !== null ) { + + this._grip.visible = false; + + } + + if ( this._hand !== null ) { + + this._hand.visible = false; + + } + + return this; + + }, + + update: function ( inputSource, frame, referenceSpace ) { + + let inputPose = null; + let gripPose = null; + let handPose = null; + + const targetRay = this._targetRay; + const grip = this._grip; + const hand = this._hand; + + if ( inputSource && frame.session.visibilityState !== 'visible-blurred' ) { + + if ( hand && inputSource.hand ) { + + handPose = true; + + for ( let i = 0; i <= window.XRHand.LITTLE_PHALANX_TIP; i ++ ) { + + if ( inputSource.hand[ i ] ) { + + // Update the joints groups with the XRJoint poses + const jointPose = frame.getJointPose( inputSource.hand[ i ], referenceSpace ); + const joint = hand.joints[ i ]; + + if ( jointPose !== null ) { + + joint.matrix.fromArray( jointPose.transform.matrix ); + joint.matrix.decompose( joint.position, joint.rotation, joint.scale ); + joint.jointRadius = jointPose.radius; + + } + + joint.visible = jointPose !== null; + + // Custom events + + // Check pinch + const indexTip = hand.joints[ window.XRHand.INDEX_PHALANX_TIP ]; + const thumbTip = hand.joints[ window.XRHand.THUMB_PHALANX_TIP ]; + const distance = indexTip.position.distanceTo( thumbTip.position ); + + const distanceToPinch = 0.02; + const threshold = 0.005; + + if ( hand.inputState.pinching && distance > distanceToPinch + threshold ) { + + hand.inputState.pinching = false; + this.dispatchEvent( { + type: 'pinchend', + handedness: inputSource.handedness, + target: this + } ); + + } else if ( ! hand.inputState.pinching && distance <= distanceToPinch - threshold ) { + + hand.inputState.pinching = true; + this.dispatchEvent( { + type: 'pinchstart', + handedness: inputSource.handedness, + target: this + } ); + + } + + } + + } + + } else { + + if ( targetRay !== null ) { + + inputPose = frame.getPose( inputSource.targetRaySpace, referenceSpace ); + + if ( inputPose !== null ) { + + targetRay.matrix.fromArray( inputPose.transform.matrix ); + targetRay.matrix.decompose( targetRay.position, targetRay.rotation, targetRay.scale ); + + } + + } + + if ( grip !== null && inputSource.gripSpace ) { + + gripPose = frame.getPose( inputSource.gripSpace, referenceSpace ); + + if ( gripPose !== null ) { + + grip.matrix.fromArray( gripPose.transform.matrix ); + grip.matrix.decompose( grip.position, grip.rotation, grip.scale ); + + } + + } + + } + + } + + if ( targetRay !== null ) { + + targetRay.visible = ( inputPose !== null ); + + } + + if ( grip !== null ) { + + grip.visible = ( gripPose !== null ); + + } + + if ( hand !== null ) { + + hand.visible = ( handPose !== null ); + + } + + return this; + + } + +} ); + +function WebXRManager( renderer, gl ) { + + const scope = this; + + let session = null; + + let framebufferScaleFactor = 1.0; + + let referenceSpace = null; + let referenceSpaceType = 'local-floor'; + + let pose = null; + + const controllers = []; + const inputSourcesMap = new Map(); + + // + + const cameraL = new PerspectiveCamera(); + cameraL.layers.enable( 1 ); + cameraL.viewport = new Vector4(); + + const cameraR = new PerspectiveCamera(); + cameraR.layers.enable( 2 ); + cameraR.viewport = new Vector4(); + + const cameras = [ cameraL, cameraR ]; + + const cameraVR = new ArrayCamera(); + cameraVR.layers.enable( 1 ); + cameraVR.layers.enable( 2 ); + + let _currentDepthNear = null; + let _currentDepthFar = null; + + // + + this.enabled = false; + + this.isPresenting = false; + + this.getController = function ( index ) { + + let controller = controllers[ index ]; + + if ( controller === undefined ) { + + controller = new WebXRController(); + controllers[ index ] = controller; + + } + + return controller.getTargetRaySpace(); + + }; + + this.getControllerGrip = function ( index ) { + + let controller = controllers[ index ]; + + if ( controller === undefined ) { + + controller = new WebXRController(); + controllers[ index ] = controller; + + } + + return controller.getGripSpace(); + + }; + + this.getHand = function ( index ) { + + let controller = controllers[ index ]; + + if ( controller === undefined ) { + + controller = new WebXRController(); + controllers[ index ] = controller; + + } + + return controller.getHandSpace(); + + }; + + // + + function onSessionEvent( event ) { + + const controller = inputSourcesMap.get( event.inputSource ); + + if ( controller ) { + + controller.dispatchEvent( { type: event.type, data: event.inputSource } ); + + } + + } + + function onSessionEnd() { + + inputSourcesMap.forEach( function ( controller, inputSource ) { + + controller.disconnect( inputSource ); + + } ); + + inputSourcesMap.clear(); + + // + + renderer.setFramebuffer( null ); + renderer.setRenderTarget( renderer.getRenderTarget() ); // Hack #15830 + animation.stop(); + + scope.isPresenting = false; + + scope.dispatchEvent( { type: 'sessionend' } ); + + } + + function onRequestReferenceSpace( value ) { + + referenceSpace = value; + + animation.setContext( session ); + animation.start(); + + scope.isPresenting = true; + + scope.dispatchEvent( { type: 'sessionstart' } ); + + } + + this.setFramebufferScaleFactor = function ( value ) { + + framebufferScaleFactor = value; + + if ( scope.isPresenting === true ) { + + console.warn( 'THREE.WebXRManager: Cannot change framebuffer scale while presenting.' ); + + } + + }; + + this.setReferenceSpaceType = function ( value ) { + + referenceSpaceType = value; + + if ( scope.isPresenting === true ) { + + console.warn( 'THREE.WebXRManager: Cannot change reference space type while presenting.' ); + + } + + }; + + this.getReferenceSpace = function () { + + return referenceSpace; + + }; + + this.getSession = function () { + + return session; + + }; + + this.setSession = function ( value ) { + + session = value; + + if ( session !== null ) { + + session.addEventListener( 'select', onSessionEvent ); + session.addEventListener( 'selectstart', onSessionEvent ); + session.addEventListener( 'selectend', onSessionEvent ); + session.addEventListener( 'squeeze', onSessionEvent ); + session.addEventListener( 'squeezestart', onSessionEvent ); + session.addEventListener( 'squeezeend', onSessionEvent ); + session.addEventListener( 'end', onSessionEnd ); + + const attributes = gl.getContextAttributes(); + + if ( attributes.xrCompatible !== true ) { + + gl.makeXRCompatible(); + + } + + const layerInit = { + antialias: attributes.antialias, + alpha: attributes.alpha, + depth: attributes.depth, + stencil: attributes.stencil, + framebufferScaleFactor: framebufferScaleFactor + }; + + // eslint-disable-next-line no-undef + const baseLayer = new XRWebGLLayer( session, gl, layerInit ); + + session.updateRenderState( { baseLayer: baseLayer } ); + + session.requestReferenceSpace( referenceSpaceType ).then( onRequestReferenceSpace ); + + // + + session.addEventListener( 'inputsourceschange', updateInputSources ); + + } + + }; + + function updateInputSources( event ) { + + const inputSources = session.inputSources; + + // Assign inputSources to available controllers + + for ( let i = 0; i < controllers.length; i ++ ) { + + inputSourcesMap.set( inputSources[ i ], controllers[ i ] ); + + } + + // Notify disconnected + + for ( let i = 0; i < event.removed.length; i ++ ) { + + const inputSource = event.removed[ i ]; + const controller = inputSourcesMap.get( inputSource ); + + if ( controller ) { + + controller.dispatchEvent( { type: 'disconnected', data: inputSource } ); + inputSourcesMap.delete( inputSource ); + + } + + } + + // Notify connected + + for ( let i = 0; i < event.added.length; i ++ ) { + + const inputSource = event.added[ i ]; + const controller = inputSourcesMap.get( inputSource ); + + if ( controller ) { + + controller.dispatchEvent( { type: 'connected', data: inputSource } ); + + } + + } + + } + + // + + const cameraLPos = new Vector3(); + const cameraRPos = new Vector3(); + + /** + * Assumes 2 cameras that are parallel and share an X-axis, and that + * the cameras' projection and world matrices have already been set. + * And that near and far planes are identical for both cameras. + * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765 + */ + function setProjectionFromUnion( camera, cameraL, cameraR ) { + + cameraLPos.setFromMatrixPosition( cameraL.matrixWorld ); + cameraRPos.setFromMatrixPosition( cameraR.matrixWorld ); + + const ipd = cameraLPos.distanceTo( cameraRPos ); + + const projL = cameraL.projectionMatrix.elements; + const projR = cameraR.projectionMatrix.elements; + + // VR systems will have identical far and near planes, and + // most likely identical top and bottom frustum extents. + // Use the left camera for these values. + const near = projL[ 14 ] / ( projL[ 10 ] - 1 ); + const far = projL[ 14 ] / ( projL[ 10 ] + 1 ); + const topFov = ( projL[ 9 ] + 1 ) / projL[ 5 ]; + const bottomFov = ( projL[ 9 ] - 1 ) / projL[ 5 ]; + + const leftFov = ( projL[ 8 ] - 1 ) / projL[ 0 ]; + const rightFov = ( projR[ 8 ] + 1 ) / projR[ 0 ]; + const left = near * leftFov; + const right = near * rightFov; + + // Calculate the new camera's position offset from the + // left camera. xOffset should be roughly half `ipd`. + const zOffset = ipd / ( - leftFov + rightFov ); + const xOffset = zOffset * - leftFov; + + // TODO: Better way to apply this offset? + cameraL.matrixWorld.decompose( camera.position, camera.quaternion, camera.scale ); + camera.translateX( xOffset ); + camera.translateZ( zOffset ); + camera.matrixWorld.compose( camera.position, camera.quaternion, camera.scale ); + camera.matrixWorldInverse.copy( camera.matrixWorld ).invert(); + + // Find the union of the frustum values of the cameras and scale + // the values so that the near plane's position does not change in world space, + // although must now be relative to the new union camera. + const near2 = near + zOffset; + const far2 = far + zOffset; + const left2 = left - xOffset; + const right2 = right + ( ipd - xOffset ); + const top2 = topFov * far / far2 * near2; + const bottom2 = bottomFov * far / far2 * near2; + + camera.projectionMatrix.makePerspective( left2, right2, top2, bottom2, near2, far2 ); + + } + + function updateCamera( camera, parent ) { + + if ( parent === null ) { + + camera.matrixWorld.copy( camera.matrix ); + + } else { + + camera.matrixWorld.multiplyMatrices( parent.matrixWorld, camera.matrix ); + + } + + camera.matrixWorldInverse.copy( camera.matrixWorld ).invert(); + + } + + this.getCamera = function ( camera ) { + + cameraVR.near = cameraR.near = cameraL.near = camera.near; + cameraVR.far = cameraR.far = cameraL.far = camera.far; + + if ( _currentDepthNear !== cameraVR.near || _currentDepthFar !== cameraVR.far ) { + + // Note that the new renderState won't apply until the next frame. See #18320 + + session.updateRenderState( { + depthNear: cameraVR.near, + depthFar: cameraVR.far + } ); + + _currentDepthNear = cameraVR.near; + _currentDepthFar = cameraVR.far; + + } + + const parent = camera.parent; + const cameras = cameraVR.cameras; + + updateCamera( cameraVR, parent ); + + for ( let i = 0; i < cameras.length; i ++ ) { + + updateCamera( cameras[ i ], parent ); + + } + + // update camera and its children + + camera.matrixWorld.copy( cameraVR.matrixWorld ); + + const children = camera.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].updateMatrixWorld( true ); + + } + + // update projection matrix for proper view frustum culling + + if ( cameras.length === 2 ) { + + setProjectionFromUnion( cameraVR, cameraL, cameraR ); + + } else { + + // assume single camera setup (AR) + + cameraVR.projectionMatrix.copy( cameraL.projectionMatrix ); + + } + + return cameraVR; + + }; + + // Animation Loop + + let onAnimationFrameCallback = null; + + function onAnimationFrame( time, frame ) { + + pose = frame.getViewerPose( referenceSpace ); + + if ( pose !== null ) { + + const views = pose.views; + const baseLayer = session.renderState.baseLayer; + + renderer.setFramebuffer( baseLayer.framebuffer ); + + let cameraVRNeedsUpdate = false; + + // check if it's necessary to rebuild cameraVR's camera list + + if ( views.length !== cameraVR.cameras.length ) { + + cameraVR.cameras.length = 0; + cameraVRNeedsUpdate = true; + + } + + for ( let i = 0; i < views.length; i ++ ) { + + const view = views[ i ]; + const viewport = baseLayer.getViewport( view ); + + const camera = cameras[ i ]; + camera.matrix.fromArray( view.transform.matrix ); + camera.projectionMatrix.fromArray( view.projectionMatrix ); + camera.viewport.set( viewport.x, viewport.y, viewport.width, viewport.height ); + + if ( i === 0 ) { + + cameraVR.matrix.copy( camera.matrix ); + + } + + if ( cameraVRNeedsUpdate === true ) { + + cameraVR.cameras.push( camera ); + + } + + } + + } + + // + + const inputSources = session.inputSources; + + for ( let i = 0; i < controllers.length; i ++ ) { + + const controller = controllers[ i ]; + const inputSource = inputSources[ i ]; + + controller.update( inputSource, frame, referenceSpace ); + + } + + if ( onAnimationFrameCallback ) onAnimationFrameCallback( time, frame ); + + } + + const animation = new WebGLAnimation(); + animation.setAnimationLoop( onAnimationFrame ); + + this.setAnimationLoop = function ( callback ) { + + onAnimationFrameCallback = callback; + + }; + + this.dispose = function () {}; + +} + +Object.assign( WebXRManager.prototype, EventDispatcher.prototype ); + +function WebGLMaterials( properties ) { + + function refreshFogUniforms( uniforms, fog ) { + + uniforms.fogColor.value.copy( fog.color ); + + if ( fog.isFog ) { + + uniforms.fogNear.value = fog.near; + uniforms.fogFar.value = fog.far; + + } else if ( fog.isFogExp2 ) { + + uniforms.fogDensity.value = fog.density; + + } + + } + + function refreshMaterialUniforms( uniforms, material, pixelRatio, height ) { + + if ( material.isMeshBasicMaterial ) { + + refreshUniformsCommon( uniforms, material ); + + } else if ( material.isMeshLambertMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsLambert( uniforms, material ); + + } else if ( material.isMeshToonMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsToon( uniforms, material ); + + } else if ( material.isMeshPhongMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsPhong( uniforms, material ); + + } else if ( material.isMeshStandardMaterial ) { + + refreshUniformsCommon( uniforms, material ); + + if ( material.isMeshPhysicalMaterial ) { + + refreshUniformsPhysical( uniforms, material ); + + } else { + + refreshUniformsStandard( uniforms, material ); + + } + + } else if ( material.isMeshMatcapMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsMatcap( uniforms, material ); + + } else if ( material.isMeshDepthMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsDepth( uniforms, material ); + + } else if ( material.isMeshDistanceMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsDistance( uniforms, material ); + + } else if ( material.isMeshNormalMaterial ) { + + refreshUniformsCommon( uniforms, material ); + refreshUniformsNormal( uniforms, material ); + + } else if ( material.isLineBasicMaterial ) { + + refreshUniformsLine( uniforms, material ); + + if ( material.isLineDashedMaterial ) { + + refreshUniformsDash( uniforms, material ); + + } + + } else if ( material.isPointsMaterial ) { + + refreshUniformsPoints( uniforms, material, pixelRatio, height ); + + } else if ( material.isSpriteMaterial ) { + + refreshUniformsSprites( uniforms, material ); + + } else if ( material.isShadowMaterial ) { + + uniforms.color.value.copy( material.color ); + uniforms.opacity.value = material.opacity; + + } else if ( material.isShaderMaterial ) { + + material.uniformsNeedUpdate = false; // #15581 + + } + + } + + function refreshUniformsCommon( uniforms, material ) { + + uniforms.opacity.value = material.opacity; + + if ( material.color ) { + + uniforms.diffuse.value.copy( material.color ); + + } + + if ( material.emissive ) { + + uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity ); + + } + + if ( material.map ) { + + uniforms.map.value = material.map; + + } + + if ( material.alphaMap ) { + + uniforms.alphaMap.value = material.alphaMap; + + } + + if ( material.specularMap ) { + + uniforms.specularMap.value = material.specularMap; + + } + + const envMap = properties.get( material ).envMap; + + if ( envMap ) { + + uniforms.envMap.value = envMap; + + uniforms.flipEnvMap.value = ( envMap.isCubeTexture && envMap._needsFlipEnvMap ) ? - 1 : 1; + + uniforms.reflectivity.value = material.reflectivity; + uniforms.refractionRatio.value = material.refractionRatio; + + const maxMipLevel = properties.get( envMap ).__maxMipLevel; + + if ( maxMipLevel !== undefined ) { + + uniforms.maxMipLevel.value = maxMipLevel; + + } + + } + + if ( material.lightMap ) { + + uniforms.lightMap.value = material.lightMap; + uniforms.lightMapIntensity.value = material.lightMapIntensity; + + } + + if ( material.aoMap ) { + + uniforms.aoMap.value = material.aoMap; + uniforms.aoMapIntensity.value = material.aoMapIntensity; + + } + + // uv repeat and offset setting priorities + // 1. color map + // 2. specular map + // 3. displacementMap map + // 4. normal map + // 5. bump map + // 6. roughnessMap map + // 7. metalnessMap map + // 8. alphaMap map + // 9. emissiveMap map + // 10. clearcoat map + // 11. clearcoat normal map + // 12. clearcoat roughnessMap map + + let uvScaleMap; + + if ( material.map ) { + + uvScaleMap = material.map; + + } else if ( material.specularMap ) { + + uvScaleMap = material.specularMap; + + } else if ( material.displacementMap ) { + + uvScaleMap = material.displacementMap; + + } else if ( material.normalMap ) { + + uvScaleMap = material.normalMap; + + } else if ( material.bumpMap ) { + + uvScaleMap = material.bumpMap; + + } else if ( material.roughnessMap ) { + + uvScaleMap = material.roughnessMap; + + } else if ( material.metalnessMap ) { + + uvScaleMap = material.metalnessMap; + + } else if ( material.alphaMap ) { + + uvScaleMap = material.alphaMap; + + } else if ( material.emissiveMap ) { + + uvScaleMap = material.emissiveMap; + + } else if ( material.clearcoatMap ) { + + uvScaleMap = material.clearcoatMap; + + } else if ( material.clearcoatNormalMap ) { + + uvScaleMap = material.clearcoatNormalMap; + + } else if ( material.clearcoatRoughnessMap ) { + + uvScaleMap = material.clearcoatRoughnessMap; + + } + + if ( uvScaleMap !== undefined ) { + + // backwards compatibility + if ( uvScaleMap.isWebGLRenderTarget ) { + + uvScaleMap = uvScaleMap.texture; + + } + + if ( uvScaleMap.matrixAutoUpdate === true ) { + + uvScaleMap.updateMatrix(); + + } + + uniforms.uvTransform.value.copy( uvScaleMap.matrix ); + + } + + // uv repeat and offset setting priorities for uv2 + // 1. ao map + // 2. light map + + let uv2ScaleMap; + + if ( material.aoMap ) { + + uv2ScaleMap = material.aoMap; + + } else if ( material.lightMap ) { + + uv2ScaleMap = material.lightMap; + + } + + if ( uv2ScaleMap !== undefined ) { + + // backwards compatibility + if ( uv2ScaleMap.isWebGLRenderTarget ) { + + uv2ScaleMap = uv2ScaleMap.texture; + + } + + if ( uv2ScaleMap.matrixAutoUpdate === true ) { + + uv2ScaleMap.updateMatrix(); + + } + + uniforms.uv2Transform.value.copy( uv2ScaleMap.matrix ); + + } + + } + + function refreshUniformsLine( uniforms, material ) { + + uniforms.diffuse.value.copy( material.color ); + uniforms.opacity.value = material.opacity; + + } + + function refreshUniformsDash( uniforms, material ) { + + uniforms.dashSize.value = material.dashSize; + uniforms.totalSize.value = material.dashSize + material.gapSize; + uniforms.scale.value = material.scale; + + } + + function refreshUniformsPoints( uniforms, material, pixelRatio, height ) { + + uniforms.diffuse.value.copy( material.color ); + uniforms.opacity.value = material.opacity; + uniforms.size.value = material.size * pixelRatio; + uniforms.scale.value = height * 0.5; + + if ( material.map ) { + + uniforms.map.value = material.map; + + } + + if ( material.alphaMap ) { + + uniforms.alphaMap.value = material.alphaMap; + + } + + // uv repeat and offset setting priorities + // 1. color map + // 2. alpha map + + let uvScaleMap; + + if ( material.map ) { + + uvScaleMap = material.map; + + } else if ( material.alphaMap ) { + + uvScaleMap = material.alphaMap; + + } + + if ( uvScaleMap !== undefined ) { + + if ( uvScaleMap.matrixAutoUpdate === true ) { + + uvScaleMap.updateMatrix(); + + } + + uniforms.uvTransform.value.copy( uvScaleMap.matrix ); + + } + + } + + function refreshUniformsSprites( uniforms, material ) { + + uniforms.diffuse.value.copy( material.color ); + uniforms.opacity.value = material.opacity; + uniforms.rotation.value = material.rotation; + + if ( material.map ) { + + uniforms.map.value = material.map; + + } + + if ( material.alphaMap ) { + + uniforms.alphaMap.value = material.alphaMap; + + } + + // uv repeat and offset setting priorities + // 1. color map + // 2. alpha map + + let uvScaleMap; + + if ( material.map ) { + + uvScaleMap = material.map; + + } else if ( material.alphaMap ) { + + uvScaleMap = material.alphaMap; + + } + + if ( uvScaleMap !== undefined ) { + + if ( uvScaleMap.matrixAutoUpdate === true ) { + + uvScaleMap.updateMatrix(); + + } + + uniforms.uvTransform.value.copy( uvScaleMap.matrix ); + + } + + } + + function refreshUniformsLambert( uniforms, material ) { + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + } + + function refreshUniformsPhong( uniforms, material ) { + + uniforms.specular.value.copy( material.specular ); + uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 ) + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsToon( uniforms, material ) { + + if ( material.gradientMap ) { + + uniforms.gradientMap.value = material.gradientMap; + + } + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsStandard( uniforms, material ) { + + uniforms.roughness.value = material.roughness; + uniforms.metalness.value = material.metalness; + + if ( material.roughnessMap ) { + + uniforms.roughnessMap.value = material.roughnessMap; + + } + + if ( material.metalnessMap ) { + + uniforms.metalnessMap.value = material.metalnessMap; + + } + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + const envMap = properties.get( material ).envMap; + + if ( envMap ) { + + //uniforms.envMap.value = material.envMap; // part of uniforms common + uniforms.envMapIntensity.value = material.envMapIntensity; + + } + + } + + function refreshUniformsPhysical( uniforms, material ) { + + refreshUniformsStandard( uniforms, material ); + + uniforms.reflectivity.value = material.reflectivity; // also part of uniforms common + + uniforms.clearcoat.value = material.clearcoat; + uniforms.clearcoatRoughness.value = material.clearcoatRoughness; + if ( material.sheen ) uniforms.sheen.value.copy( material.sheen ); + + if ( material.clearcoatMap ) { + + uniforms.clearcoatMap.value = material.clearcoatMap; + + } + + if ( material.clearcoatRoughnessMap ) { + + uniforms.clearcoatRoughnessMap.value = material.clearcoatRoughnessMap; + + } + + if ( material.clearcoatNormalMap ) { + + uniforms.clearcoatNormalScale.value.copy( material.clearcoatNormalScale ); + uniforms.clearcoatNormalMap.value = material.clearcoatNormalMap; + + if ( material.side === BackSide ) { + + uniforms.clearcoatNormalScale.value.negate(); + + } + + } + + uniforms.transmission.value = material.transmission; + + if ( material.transmissionMap ) { + + uniforms.transmissionMap.value = material.transmissionMap; + + } + + } + + function refreshUniformsMatcap( uniforms, material ) { + + if ( material.matcap ) { + + uniforms.matcap.value = material.matcap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsDepth( uniforms, material ) { + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsDistance( uniforms, material ) { + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + uniforms.referencePosition.value.copy( material.referencePosition ); + uniforms.nearDistance.value = material.nearDistance; + uniforms.farDistance.value = material.farDistance; + + } + + function refreshUniformsNormal( uniforms, material ) { + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + if ( material.side === BackSide ) uniforms.bumpScale.value *= - 1; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + if ( material.side === BackSide ) uniforms.normalScale.value.negate(); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + return { + refreshFogUniforms: refreshFogUniforms, + refreshMaterialUniforms: refreshMaterialUniforms + }; + +} + +function createCanvasElement() { + + const canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); + canvas.style.display = 'block'; + return canvas; + +} + +function WebGLRenderer( parameters ) { + + parameters = parameters || {}; + + const _canvas = parameters.canvas !== undefined ? parameters.canvas : createCanvasElement(), + _context = parameters.context !== undefined ? parameters.context : null, + + _alpha = parameters.alpha !== undefined ? parameters.alpha : false, + _depth = parameters.depth !== undefined ? parameters.depth : true, + _stencil = parameters.stencil !== undefined ? parameters.stencil : true, + _antialias = parameters.antialias !== undefined ? parameters.antialias : false, + _premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true, + _preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false, + _powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default', + _failIfMajorPerformanceCaveat = parameters.failIfMajorPerformanceCaveat !== undefined ? parameters.failIfMajorPerformanceCaveat : false; + + let currentRenderList = null; + let currentRenderState = null; + + // render() can be called from within a callback triggered by another render. + // We track this so that the nested render call gets its state isolated from the parent render call. + + const renderStateStack = []; + + // public properties + + this.domElement = _canvas; + + // Debug configuration container + this.debug = { + + /** + * Enables error checking and reporting when shader programs are being compiled + * @type {boolean} + */ + checkShaderErrors: true + }; + + // clearing + + this.autoClear = true; + this.autoClearColor = true; + this.autoClearDepth = true; + this.autoClearStencil = true; + + // scene graph + + this.sortObjects = true; + + // user-defined clipping + + this.clippingPlanes = []; + this.localClippingEnabled = false; + + // physically based shading + + this.gammaFactor = 2.0; // for backwards compatibility + this.outputEncoding = LinearEncoding; + + // physical lights + + this.physicallyCorrectLights = false; + + // tone mapping + + this.toneMapping = NoToneMapping; + this.toneMappingExposure = 1.0; + + // morphs + + this.maxMorphTargets = 8; + this.maxMorphNormals = 4; + + // internal properties + + const _this = this; + + let _isContextLost = false; + + // internal state cache + + let _framebuffer = null; + + let _currentActiveCubeFace = 0; + let _currentActiveMipmapLevel = 0; + let _currentRenderTarget = null; + let _currentFramebuffer = null; + let _currentMaterialId = - 1; + + let _currentCamera = null; + + const _currentViewport = new Vector4(); + const _currentScissor = new Vector4(); + let _currentScissorTest = null; + + // + + let _width = _canvas.width; + let _height = _canvas.height; + + let _pixelRatio = 1; + let _opaqueSort = null; + let _transparentSort = null; + + const _viewport = new Vector4( 0, 0, _width, _height ); + const _scissor = new Vector4( 0, 0, _width, _height ); + let _scissorTest = false; + + // frustum + + const _frustum = new Frustum(); + + // clipping + + let _clippingEnabled = false; + let _localClippingEnabled = false; + + // camera matrices cache + + const _projScreenMatrix = new Matrix4(); + + const _vector3 = new Vector3(); + + const _emptyScene = { background: null, fog: null, environment: null, overrideMaterial: null, isScene: true }; + + function getTargetPixelRatio() { + + return _currentRenderTarget === null ? _pixelRatio : 1; + + } + + // initialize + + let _gl = _context; + + function getContext( contextNames, contextAttributes ) { + + for ( let i = 0; i < contextNames.length; i ++ ) { + + const contextName = contextNames[ i ]; + const context = _canvas.getContext( contextName, contextAttributes ); + if ( context !== null ) return context; + + } + + return null; + + } + + try { + + const contextAttributes = { + alpha: _alpha, + depth: _depth, + stencil: _stencil, + antialias: _antialias, + premultipliedAlpha: _premultipliedAlpha, + preserveDrawingBuffer: _preserveDrawingBuffer, + powerPreference: _powerPreference, + failIfMajorPerformanceCaveat: _failIfMajorPerformanceCaveat + }; + + // event listeners must be registered before WebGL context is created, see #12753 + + _canvas.addEventListener( 'webglcontextlost', onContextLost, false ); + _canvas.addEventListener( 'webglcontextrestored', onContextRestore, false ); + + if ( _gl === null ) { + + const contextNames = [ 'webgl2', 'webgl', 'experimental-webgl' ]; + + if ( _this.isWebGL1Renderer === true ) { + + contextNames.shift(); + + } + + _gl = getContext( contextNames, contextAttributes ); + + if ( _gl === null ) { + + if ( getContext( contextNames ) ) { + + throw new Error( 'Error creating WebGL context with your selected attributes.' ); + + } else { + + throw new Error( 'Error creating WebGL context.' ); + + } + + } + + } + + // Some experimental-webgl implementations do not have getShaderPrecisionFormat + + if ( _gl.getShaderPrecisionFormat === undefined ) { + + _gl.getShaderPrecisionFormat = function () { + + return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 }; + + }; + + } + + } catch ( error ) { + + console.error( 'THREE.WebGLRenderer: ' + error.message ); + throw error; + + } + + let extensions, capabilities, state, info; + let properties, textures, cubemaps, attributes, geometries, objects; + let programCache, materials, renderLists, renderStates, clipping; + + let background, morphtargets, bufferRenderer, indexedBufferRenderer; + + let utils, bindingStates; + + function initGLContext() { + + extensions = new WebGLExtensions( _gl ); + + capabilities = new WebGLCapabilities( _gl, extensions, parameters ); + + if ( capabilities.isWebGL2 === false ) { + + extensions.get( 'WEBGL_depth_texture' ); + extensions.get( 'OES_texture_float' ); + extensions.get( 'OES_texture_half_float' ); + extensions.get( 'OES_texture_half_float_linear' ); + extensions.get( 'OES_standard_derivatives' ); + extensions.get( 'OES_element_index_uint' ); + extensions.get( 'OES_vertex_array_object' ); + extensions.get( 'ANGLE_instanced_arrays' ); + + } + + extensions.get( 'OES_texture_float_linear' ); + + utils = new WebGLUtils( _gl, extensions, capabilities ); + + state = new WebGLState( _gl, extensions, capabilities ); + state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor() ); + state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor() ); + + info = new WebGLInfo( _gl ); + properties = new WebGLProperties(); + textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, info ); + cubemaps = new WebGLCubeMaps( _this ); + attributes = new WebGLAttributes( _gl, capabilities ); + bindingStates = new WebGLBindingStates( _gl, extensions, attributes, capabilities ); + geometries = new WebGLGeometries( _gl, attributes, info, bindingStates ); + objects = new WebGLObjects( _gl, geometries, attributes, info ); + morphtargets = new WebGLMorphtargets( _gl ); + clipping = new WebGLClipping( properties ); + programCache = new WebGLPrograms( _this, cubemaps, extensions, capabilities, bindingStates, clipping ); + materials = new WebGLMaterials( properties ); + renderLists = new WebGLRenderLists( properties ); + renderStates = new WebGLRenderStates( extensions, capabilities ); + background = new WebGLBackground( _this, cubemaps, state, objects, _premultipliedAlpha ); + + bufferRenderer = new WebGLBufferRenderer( _gl, extensions, info, capabilities ); + indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, info, capabilities ); + + info.programs = programCache.programs; + + _this.capabilities = capabilities; + _this.extensions = extensions; + _this.properties = properties; + _this.renderLists = renderLists; + _this.state = state; + _this.info = info; + + } + + initGLContext(); + + // xr + + const xr = new WebXRManager( _this, _gl ); + + this.xr = xr; + + // shadow map + + const shadowMap = new WebGLShadowMap( _this, objects, capabilities.maxTextureSize ); + + this.shadowMap = shadowMap; + + // API + + this.getContext = function () { + + return _gl; + + }; + + this.getContextAttributes = function () { + + return _gl.getContextAttributes(); + + }; + + this.forceContextLoss = function () { + + const extension = extensions.get( 'WEBGL_lose_context' ); + if ( extension ) extension.loseContext(); + + }; + + this.forceContextRestore = function () { + + const extension = extensions.get( 'WEBGL_lose_context' ); + if ( extension ) extension.restoreContext(); + + }; + + this.getPixelRatio = function () { + + return _pixelRatio; + + }; + + this.setPixelRatio = function ( value ) { + + if ( value === undefined ) return; + + _pixelRatio = value; + + this.setSize( _width, _height, false ); + + }; + + this.getSize = function ( target ) { + + if ( target === undefined ) { + + console.warn( 'WebGLRenderer: .getsize() now requires a Vector2 as an argument' ); + + target = new Vector2(); + + } + + return target.set( _width, _height ); + + }; + + this.setSize = function ( width, height, updateStyle ) { + + if ( xr.isPresenting ) { + + console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' ); + return; + + } + + _width = width; + _height = height; + + _canvas.width = Math.floor( width * _pixelRatio ); + _canvas.height = Math.floor( height * _pixelRatio ); + + if ( updateStyle !== false ) { + + _canvas.style.width = width + 'px'; + _canvas.style.height = height + 'px'; + + } + + this.setViewport( 0, 0, width, height ); + + }; + + this.getDrawingBufferSize = function ( target ) { + + if ( target === undefined ) { + + console.warn( 'WebGLRenderer: .getdrawingBufferSize() now requires a Vector2 as an argument' ); + + target = new Vector2(); + + } + + return target.set( _width * _pixelRatio, _height * _pixelRatio ).floor(); + + }; + + this.setDrawingBufferSize = function ( width, height, pixelRatio ) { + + _width = width; + _height = height; + + _pixelRatio = pixelRatio; + + _canvas.width = Math.floor( width * pixelRatio ); + _canvas.height = Math.floor( height * pixelRatio ); + + this.setViewport( 0, 0, width, height ); + + }; + + this.getCurrentViewport = function ( target ) { + + if ( target === undefined ) { + + console.warn( 'WebGLRenderer: .getCurrentViewport() now requires a Vector4 as an argument' ); + + target = new Vector4(); + + } + + return target.copy( _currentViewport ); + + }; + + this.getViewport = function ( target ) { + + return target.copy( _viewport ); + + }; + + this.setViewport = function ( x, y, width, height ) { + + if ( x.isVector4 ) { + + _viewport.set( x.x, x.y, x.z, x.w ); + + } else { + + _viewport.set( x, y, width, height ); + + } + + state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor() ); + + }; + + this.getScissor = function ( target ) { + + return target.copy( _scissor ); + + }; + + this.setScissor = function ( x, y, width, height ) { + + if ( x.isVector4 ) { + + _scissor.set( x.x, x.y, x.z, x.w ); + + } else { + + _scissor.set( x, y, width, height ); + + } + + state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor() ); + + }; + + this.getScissorTest = function () { + + return _scissorTest; + + }; + + this.setScissorTest = function ( boolean ) { + + state.setScissorTest( _scissorTest = boolean ); + + }; + + this.setOpaqueSort = function ( method ) { + + _opaqueSort = method; + + }; + + this.setTransparentSort = function ( method ) { + + _transparentSort = method; + + }; + + // Clearing + + this.getClearColor = function ( target ) { + + if ( target === undefined ) { + + console.warn( 'WebGLRenderer: .getClearColor() now requires a Color as an argument' ); + + target = new Color(); + + } + + return target.copy( background.getClearColor() ); + + }; + + this.setClearColor = function () { + + background.setClearColor.apply( background, arguments ); + + }; + + this.getClearAlpha = function () { + + return background.getClearAlpha(); + + }; + + this.setClearAlpha = function () { + + background.setClearAlpha.apply( background, arguments ); + + }; + + this.clear = function ( color, depth, stencil ) { + + let bits = 0; + + if ( color === undefined || color ) bits |= 16384; + if ( depth === undefined || depth ) bits |= 256; + if ( stencil === undefined || stencil ) bits |= 1024; + + _gl.clear( bits ); + + }; + + this.clearColor = function () { + + this.clear( true, false, false ); + + }; + + this.clearDepth = function () { + + this.clear( false, true, false ); + + }; + + this.clearStencil = function () { + + this.clear( false, false, true ); + + }; + + // + + this.dispose = function () { + + _canvas.removeEventListener( 'webglcontextlost', onContextLost, false ); + _canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false ); + + renderLists.dispose(); + renderStates.dispose(); + properties.dispose(); + cubemaps.dispose(); + objects.dispose(); + bindingStates.dispose(); + + xr.dispose(); + + animation.stop(); + + }; + + // Events + + function onContextLost( event ) { + + event.preventDefault(); + + console.log( 'THREE.WebGLRenderer: Context Lost.' ); + + _isContextLost = true; + + } + + function onContextRestore( /* event */ ) { + + console.log( 'THREE.WebGLRenderer: Context Restored.' ); + + _isContextLost = false; + + initGLContext(); + + } + + function onMaterialDispose( event ) { + + const material = event.target; + + material.removeEventListener( 'dispose', onMaterialDispose ); + + deallocateMaterial( material ); + + } + + // Buffer deallocation + + function deallocateMaterial( material ) { + + releaseMaterialProgramReference( material ); + + properties.remove( material ); + + } + + + function releaseMaterialProgramReference( material ) { + + const programInfo = properties.get( material ).program; + + if ( programInfo !== undefined ) { + + programCache.releaseProgram( programInfo ); + + } + + } + + // Buffer rendering + + function renderObjectImmediate( object, program ) { + + object.render( function ( object ) { + + _this.renderBufferImmediate( object, program ); + + } ); + + } + + this.renderBufferImmediate = function ( object, program ) { + + bindingStates.initAttributes(); + + const buffers = properties.get( object ); + + if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer(); + if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer(); + if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer(); + if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer(); + + const programAttributes = program.getAttributes(); + + if ( object.hasPositions ) { + + _gl.bindBuffer( 34962, buffers.position ); + _gl.bufferData( 34962, object.positionArray, 35048 ); + + bindingStates.enableAttribute( programAttributes.position ); + _gl.vertexAttribPointer( programAttributes.position, 3, 5126, false, 0, 0 ); + + } + + if ( object.hasNormals ) { + + _gl.bindBuffer( 34962, buffers.normal ); + _gl.bufferData( 34962, object.normalArray, 35048 ); + + bindingStates.enableAttribute( programAttributes.normal ); + _gl.vertexAttribPointer( programAttributes.normal, 3, 5126, false, 0, 0 ); + + } + + if ( object.hasUvs ) { + + _gl.bindBuffer( 34962, buffers.uv ); + _gl.bufferData( 34962, object.uvArray, 35048 ); + + bindingStates.enableAttribute( programAttributes.uv ); + _gl.vertexAttribPointer( programAttributes.uv, 2, 5126, false, 0, 0 ); + + } + + if ( object.hasColors ) { + + _gl.bindBuffer( 34962, buffers.color ); + _gl.bufferData( 34962, object.colorArray, 35048 ); + + bindingStates.enableAttribute( programAttributes.color ); + _gl.vertexAttribPointer( programAttributes.color, 3, 5126, false, 0, 0 ); + + } + + bindingStates.disableUnusedAttributes(); + + _gl.drawArrays( 4, 0, object.count ); + + object.count = 0; + + }; + + this.renderBufferDirect = function ( camera, scene, geometry, material, object, group ) { + + if ( scene === null ) scene = _emptyScene; // renderBufferDirect second parameter used to be fog (could be null) + + const frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 ); + + const program = setProgram( camera, scene, material, object ); + + state.setMaterial( material, frontFaceCW ); + + // + + let index = geometry.index; + const position = geometry.attributes.position; + + // + + if ( index === null ) { + + if ( position === undefined || position.count === 0 ) return; + + } else if ( index.count === 0 ) { + + return; + + } + + // + + let rangeFactor = 1; + + if ( material.wireframe === true ) { + + index = geometries.getWireframeAttribute( geometry ); + rangeFactor = 2; + + } + + if ( material.morphTargets || material.morphNormals ) { + + morphtargets.update( object, geometry, material, program ); + + } + + bindingStates.setup( object, material, program, geometry, index ); + + let attribute; + let renderer = bufferRenderer; + + if ( index !== null ) { + + attribute = attributes.get( index ); + + renderer = indexedBufferRenderer; + renderer.setIndex( attribute ); + + } + + // + + const dataCount = ( index !== null ) ? index.count : position.count; + + const rangeStart = geometry.drawRange.start * rangeFactor; + const rangeCount = geometry.drawRange.count * rangeFactor; + + const groupStart = group !== null ? group.start * rangeFactor : 0; + const groupCount = group !== null ? group.count * rangeFactor : Infinity; + + const drawStart = Math.max( rangeStart, groupStart ); + const drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1; + + const drawCount = Math.max( 0, drawEnd - drawStart + 1 ); + + if ( drawCount === 0 ) return; + + // + + if ( object.isMesh ) { + + if ( material.wireframe === true ) { + + state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() ); + renderer.setMode( 1 ); + + } else { + + renderer.setMode( 4 ); + + } + + } else if ( object.isLine ) { + + let lineWidth = material.linewidth; + + if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material + + state.setLineWidth( lineWidth * getTargetPixelRatio() ); + + if ( object.isLineSegments ) { + + renderer.setMode( 1 ); + + } else if ( object.isLineLoop ) { + + renderer.setMode( 2 ); + + } else { + + renderer.setMode( 3 ); + + } + + } else if ( object.isPoints ) { + + renderer.setMode( 0 ); + + } else if ( object.isSprite ) { + + renderer.setMode( 4 ); + + } + + if ( object.isInstancedMesh ) { + + renderer.renderInstances( drawStart, drawCount, object.count ); + + } else if ( geometry.isInstancedBufferGeometry ) { + + const instanceCount = Math.min( geometry.instanceCount, geometry._maxInstanceCount ); + + renderer.renderInstances( drawStart, drawCount, instanceCount ); + + } else { + + renderer.render( drawStart, drawCount ); + + } + + }; + + // Compile + + this.compile = function ( scene, camera ) { + + currentRenderState = renderStates.get( scene ); + currentRenderState.init(); + + scene.traverseVisible( function ( object ) { + + if ( object.isLight && object.layers.test( camera.layers ) ) { + + currentRenderState.pushLight( object ); + + if ( object.castShadow ) { + + currentRenderState.pushShadow( object ); + + } + + } + + } ); + + currentRenderState.setupLights(); + + const compiled = new WeakMap(); + + scene.traverse( function ( object ) { + + const material = object.material; + + if ( material ) { + + if ( Array.isArray( material ) ) { + + for ( let i = 0; i < material.length; i ++ ) { + + const material2 = material[ i ]; + + if ( compiled.has( material2 ) === false ) { + + initMaterial( material2, scene, object ); + compiled.set( material2 ); + + } + + } + + } else if ( compiled.has( material ) === false ) { + + initMaterial( material, scene, object ); + compiled.set( material ); + + } + + } + + } ); + + }; + + // Animation Loop + + let onAnimationFrameCallback = null; + + function onAnimationFrame( time ) { + + if ( xr.isPresenting ) return; + if ( onAnimationFrameCallback ) onAnimationFrameCallback( time ); + + } + + const animation = new WebGLAnimation(); + animation.setAnimationLoop( onAnimationFrame ); + + if ( typeof window !== 'undefined' ) animation.setContext( window ); + + this.setAnimationLoop = function ( callback ) { + + onAnimationFrameCallback = callback; + xr.setAnimationLoop( callback ); + + ( callback === null ) ? animation.stop() : animation.start(); + + }; + + // Rendering + + this.render = function ( scene, camera ) { + + let renderTarget, forceClear; + + if ( arguments[ 2 ] !== undefined ) { + + console.warn( 'THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead.' ); + renderTarget = arguments[ 2 ]; + + } + + if ( arguments[ 3 ] !== undefined ) { + + console.warn( 'THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead.' ); + forceClear = arguments[ 3 ]; + + } + + if ( camera !== undefined && camera.isCamera !== true ) { + + console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' ); + return; + + } + + if ( _isContextLost === true ) return; + + // reset caching for this frame + + bindingStates.resetDefaultState(); + _currentMaterialId = - 1; + _currentCamera = null; + + // update scene graph + + if ( scene.autoUpdate === true ) scene.updateMatrixWorld(); + + // update camera matrices and frustum + + if ( camera.parent === null ) camera.updateMatrixWorld(); + + if ( xr.enabled === true && xr.isPresenting === true ) { + + camera = xr.getCamera( camera ); + + } + + // + if ( scene.isScene === true ) scene.onBeforeRender( _this, scene, camera, renderTarget || _currentRenderTarget ); + + currentRenderState = renderStates.get( scene, renderStateStack.length ); + currentRenderState.init(); + + renderStateStack.push( currentRenderState ); + + _projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse ); + _frustum.setFromProjectionMatrix( _projScreenMatrix ); + + _localClippingEnabled = this.localClippingEnabled; + _clippingEnabled = clipping.init( this.clippingPlanes, _localClippingEnabled, camera ); + + currentRenderList = renderLists.get( scene, camera ); + currentRenderList.init(); + + projectObject( scene, camera, 0, _this.sortObjects ); + + currentRenderList.finish(); + + if ( _this.sortObjects === true ) { + + currentRenderList.sort( _opaqueSort, _transparentSort ); + + } + + // + + if ( _clippingEnabled === true ) clipping.beginShadows(); + + const shadowsArray = currentRenderState.state.shadowsArray; + + shadowMap.render( shadowsArray, scene, camera ); + + currentRenderState.setupLights(); + currentRenderState.setupLightsView( camera ); + + if ( _clippingEnabled === true ) clipping.endShadows(); + + // + + if ( this.info.autoReset === true ) this.info.reset(); + + if ( renderTarget !== undefined ) { + + this.setRenderTarget( renderTarget ); + + } + + // + + background.render( currentRenderList, scene, camera, forceClear ); + + // render scene + + const opaqueObjects = currentRenderList.opaque; + const transparentObjects = currentRenderList.transparent; + + if ( opaqueObjects.length > 0 ) renderObjects( opaqueObjects, scene, camera ); + if ( transparentObjects.length > 0 ) renderObjects( transparentObjects, scene, camera ); + + // + + if ( scene.isScene === true ) scene.onAfterRender( _this, scene, camera ); + + // + + if ( _currentRenderTarget !== null ) { + + // Generate mipmap if we're using any kind of mipmap filtering + + textures.updateRenderTargetMipmap( _currentRenderTarget ); + + // resolve multisample renderbuffers to a single-sample texture if necessary + + textures.updateMultisampleRenderTarget( _currentRenderTarget ); + + } + + // Ensure depth buffer writing is enabled so it can be cleared on next render + + state.buffers.depth.setTest( true ); + state.buffers.depth.setMask( true ); + state.buffers.color.setMask( true ); + + state.setPolygonOffset( false ); + + // _gl.finish(); + + renderStateStack.pop(); + if ( renderStateStack.length > 0 ) { + + currentRenderState = renderStateStack[ renderStateStack.length - 1 ]; + + } else { + + currentRenderState = null; + + } + + currentRenderList = null; + + }; + + function projectObject( object, camera, groupOrder, sortObjects ) { + + if ( object.visible === false ) return; + + const visible = object.layers.test( camera.layers ); + + if ( visible ) { + + if ( object.isGroup ) { + + groupOrder = object.renderOrder; + + } else if ( object.isLOD ) { + + if ( object.autoUpdate === true ) object.update( camera ); + + } else if ( object.isLight ) { + + currentRenderState.pushLight( object ); + + if ( object.castShadow ) { + + currentRenderState.pushShadow( object ); + + } + + } else if ( object.isSprite ) { + + if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) { + + if ( sortObjects ) { + + _vector3.setFromMatrixPosition( object.matrixWorld ) + .applyMatrix4( _projScreenMatrix ); + + } + + const geometry = objects.update( object ); + const material = object.material; + + if ( material.visible ) { + + currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null ); + + } + + } + + } else if ( object.isImmediateRenderObject ) { + + if ( sortObjects ) { + + _vector3.setFromMatrixPosition( object.matrixWorld ) + .applyMatrix4( _projScreenMatrix ); + + } + + currentRenderList.push( object, null, object.material, groupOrder, _vector3.z, null ); + + } else if ( object.isMesh || object.isLine || object.isPoints ) { + + if ( object.isSkinnedMesh ) { + + // update skeleton only once in a frame + + if ( object.skeleton.frame !== info.render.frame ) { + + object.skeleton.update(); + object.skeleton.frame = info.render.frame; + + } + + } + + if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) { + + if ( sortObjects ) { + + _vector3.setFromMatrixPosition( object.matrixWorld ) + .applyMatrix4( _projScreenMatrix ); + + } + + const geometry = objects.update( object ); + const material = object.material; + + if ( Array.isArray( material ) ) { + + const groups = geometry.groups; + + for ( let i = 0, l = groups.length; i < l; i ++ ) { + + const group = groups[ i ]; + const groupMaterial = material[ group.materialIndex ]; + + if ( groupMaterial && groupMaterial.visible ) { + + currentRenderList.push( object, geometry, groupMaterial, groupOrder, _vector3.z, group ); + + } + + } + + } else if ( material.visible ) { + + currentRenderList.push( object, geometry, material, groupOrder, _vector3.z, null ); + + } + + } + + } + + } + + const children = object.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + projectObject( children[ i ], camera, groupOrder, sortObjects ); + + } + + } + + function renderObjects( renderList, scene, camera ) { + + const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null; + + for ( let i = 0, l = renderList.length; i < l; i ++ ) { + + const renderItem = renderList[ i ]; + + const object = renderItem.object; + const geometry = renderItem.geometry; + const material = overrideMaterial === null ? renderItem.material : overrideMaterial; + const group = renderItem.group; + + if ( camera.isArrayCamera ) { + + const cameras = camera.cameras; + + for ( let j = 0, jl = cameras.length; j < jl; j ++ ) { + + const camera2 = cameras[ j ]; + + if ( object.layers.test( camera2.layers ) ) { + + state.viewport( _currentViewport.copy( camera2.viewport ) ); + + currentRenderState.setupLightsView( camera2 ); + + renderObject( object, scene, camera2, geometry, material, group ); + + } + + } + + } else { + + renderObject( object, scene, camera, geometry, material, group ); + + } + + } + + } + + function renderObject( object, scene, camera, geometry, material, group ) { + + object.onBeforeRender( _this, scene, camera, geometry, material, group ); + + object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld ); + object.normalMatrix.getNormalMatrix( object.modelViewMatrix ); + + if ( object.isImmediateRenderObject ) { + + const program = setProgram( camera, scene, material, object ); + + state.setMaterial( material ); + + bindingStates.reset(); + + renderObjectImmediate( object, program ); + + } else { + + _this.renderBufferDirect( camera, scene, geometry, material, object, group ); + + } + + object.onAfterRender( _this, scene, camera, geometry, material, group ); + + } + + function initMaterial( material, scene, object ) { + + if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ... + + const materialProperties = properties.get( material ); + + const lights = currentRenderState.state.lights; + const shadowsArray = currentRenderState.state.shadowsArray; + + const lightsStateVersion = lights.state.version; + + const parameters = programCache.getParameters( material, lights.state, shadowsArray, scene, object ); + const programCacheKey = programCache.getProgramCacheKey( parameters ); + + let program = materialProperties.program; + let programChange = true; + + if ( program === undefined ) { + + // new material + material.addEventListener( 'dispose', onMaterialDispose ); + + } else if ( program.cacheKey !== programCacheKey ) { + + // changed glsl or parameters + releaseMaterialProgramReference( material ); + + } else if ( materialProperties.lightsStateVersion !== lightsStateVersion ) { + + programChange = false; + + } else if ( parameters.shaderID !== undefined ) { + + // same glsl and uniform list, envMap still needs the update here to avoid a frame-late effect + + const environment = material.isMeshStandardMaterial ? scene.environment : null; + materialProperties.envMap = cubemaps.get( material.envMap || environment ); + + return; + + } else { + + // only rebuild uniform list + programChange = false; + + } + + if ( programChange ) { + + parameters.uniforms = programCache.getUniforms( material ); + + material.onBeforeCompile( parameters, _this ); + + program = programCache.acquireProgram( parameters, programCacheKey ); + + materialProperties.program = program; + materialProperties.uniforms = parameters.uniforms; + materialProperties.outputEncoding = parameters.outputEncoding; + + } + + const uniforms = materialProperties.uniforms; + + if ( ! material.isShaderMaterial && + ! material.isRawShaderMaterial || + material.clipping === true ) { + + materialProperties.numClippingPlanes = clipping.numPlanes; + materialProperties.numIntersection = clipping.numIntersection; + uniforms.clippingPlanes = clipping.uniform; + + } + + materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null; + materialProperties.fog = scene.fog; + materialProperties.envMap = cubemaps.get( material.envMap || materialProperties.environment ); + + // store the light setup it was created for + + materialProperties.needsLights = materialNeedsLights( material ); + materialProperties.lightsStateVersion = lightsStateVersion; + + if ( materialProperties.needsLights ) { + + // wire up the material to this renderer's lighting state + + uniforms.ambientLightColor.value = lights.state.ambient; + uniforms.lightProbe.value = lights.state.probe; + uniforms.directionalLights.value = lights.state.directional; + uniforms.directionalLightShadows.value = lights.state.directionalShadow; + uniforms.spotLights.value = lights.state.spot; + uniforms.spotLightShadows.value = lights.state.spotShadow; + uniforms.rectAreaLights.value = lights.state.rectArea; + uniforms.ltc_1.value = lights.state.rectAreaLTC1; + uniforms.ltc_2.value = lights.state.rectAreaLTC2; + uniforms.pointLights.value = lights.state.point; + uniforms.pointLightShadows.value = lights.state.pointShadow; + uniforms.hemisphereLights.value = lights.state.hemi; + + uniforms.directionalShadowMap.value = lights.state.directionalShadowMap; + uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix; + uniforms.spotShadowMap.value = lights.state.spotShadowMap; + uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix; + uniforms.pointShadowMap.value = lights.state.pointShadowMap; + uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix; + // TODO (abelnation): add area lights shadow info to uniforms + + } + + const progUniforms = materialProperties.program.getUniforms(); + const uniformsList = WebGLUniforms.seqWithValue( progUniforms.seq, uniforms ); + + materialProperties.uniformsList = uniformsList; + + } + + function setProgram( camera, scene, material, object ) { + + if ( scene.isScene !== true ) scene = _emptyScene; // scene could be a Mesh, Line, Points, ... + + textures.resetTextureUnits(); + + const fog = scene.fog; + const environment = material.isMeshStandardMaterial ? scene.environment : null; + const encoding = ( _currentRenderTarget === null ) ? _this.outputEncoding : _currentRenderTarget.texture.encoding; + const envMap = cubemaps.get( material.envMap || environment ); + + const materialProperties = properties.get( material ); + const lights = currentRenderState.state.lights; + + if ( _clippingEnabled === true ) { + + if ( _localClippingEnabled === true || camera !== _currentCamera ) { + + const useCache = + camera === _currentCamera && + material.id === _currentMaterialId; + + // we might want to call this function with some ClippingGroup + // object instead of the material, once it becomes feasible + // (#8465, #8379) + clipping.setState( material, camera, useCache ); + + } + + } + + if ( material.version === materialProperties.__version ) { + + if ( material.fog && materialProperties.fog !== fog ) { + + initMaterial( material, scene, object ); + + } else if ( materialProperties.environment !== environment ) { + + initMaterial( material, scene, object ); + + } else if ( materialProperties.needsLights && ( materialProperties.lightsStateVersion !== lights.state.version ) ) { + + initMaterial( material, scene, object ); + + } else if ( materialProperties.numClippingPlanes !== undefined && + ( materialProperties.numClippingPlanes !== clipping.numPlanes || + materialProperties.numIntersection !== clipping.numIntersection ) ) { + + initMaterial( material, scene, object ); + + } else if ( materialProperties.outputEncoding !== encoding ) { + + initMaterial( material, scene, object ); + + } else if ( materialProperties.envMap !== envMap ) { + + initMaterial( material, scene, object ); + + } + + } else { + + initMaterial( material, scene, object ); + materialProperties.__version = material.version; + + } + + let refreshProgram = false; + let refreshMaterial = false; + let refreshLights = false; + + const program = materialProperties.program, + p_uniforms = program.getUniforms(), + m_uniforms = materialProperties.uniforms; + + if ( state.useProgram( program.program ) ) { + + refreshProgram = true; + refreshMaterial = true; + refreshLights = true; + + } + + if ( material.id !== _currentMaterialId ) { + + _currentMaterialId = material.id; + + refreshMaterial = true; + + } + + if ( refreshProgram || _currentCamera !== camera ) { + + p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix ); + + if ( capabilities.logarithmicDepthBuffer ) { + + p_uniforms.setValue( _gl, 'logDepthBufFC', + 2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) ); + + } + + if ( _currentCamera !== camera ) { + + _currentCamera = camera; + + // lighting uniforms depend on the camera so enforce an update + // now, in case this material supports lights - or later, when + // the next material that does gets activated: + + refreshMaterial = true; // set to true on material change + refreshLights = true; // remains set until update done + + } + + // load material specific uniforms + // (shader material also gets them for the sake of genericity) + + if ( material.isShaderMaterial || + material.isMeshPhongMaterial || + material.isMeshToonMaterial || + material.isMeshStandardMaterial || + material.envMap ) { + + const uCamPos = p_uniforms.map.cameraPosition; + + if ( uCamPos !== undefined ) { + + uCamPos.setValue( _gl, + _vector3.setFromMatrixPosition( camera.matrixWorld ) ); + + } + + } + + if ( material.isMeshPhongMaterial || + material.isMeshToonMaterial || + material.isMeshLambertMaterial || + material.isMeshBasicMaterial || + material.isMeshStandardMaterial || + material.isShaderMaterial ) { + + p_uniforms.setValue( _gl, 'isOrthographic', camera.isOrthographicCamera === true ); + + } + + if ( material.isMeshPhongMaterial || + material.isMeshToonMaterial || + material.isMeshLambertMaterial || + material.isMeshBasicMaterial || + material.isMeshStandardMaterial || + material.isShaderMaterial || + material.isShadowMaterial || + material.skinning ) { + + p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse ); + + } + + } + + // skinning uniforms must be set even if material didn't change + // auto-setting of texture unit for bone texture must go before other textures + // otherwise textures used for skinning can take over texture units reserved for other material textures + + if ( material.skinning ) { + + p_uniforms.setOptional( _gl, object, 'bindMatrix' ); + p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' ); + + const skeleton = object.skeleton; + + if ( skeleton ) { + + const bones = skeleton.bones; + + if ( capabilities.floatVertexTextures ) { + + if ( skeleton.boneTexture === null ) { + + // layout (1 matrix = 4 pixels) + // RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4) + // with 8x8 pixel texture max 16 bones * 4 pixels = (8 * 8) + // 16x16 pixel texture max 64 bones * 4 pixels = (16 * 16) + // 32x32 pixel texture max 256 bones * 4 pixels = (32 * 32) + // 64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64) + + + let size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix + size = MathUtils.ceilPowerOfTwo( size ); + size = Math.max( size, 4 ); + + const boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel + boneMatrices.set( skeleton.boneMatrices ); // copy current values + + const boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType ); + + skeleton.boneMatrices = boneMatrices; + skeleton.boneTexture = boneTexture; + skeleton.boneTextureSize = size; + + } + + p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture, textures ); + p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize ); + + } else { + + p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' ); + + } + + } + + } + + if ( refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow ) { + + materialProperties.receiveShadow = object.receiveShadow; + p_uniforms.setValue( _gl, 'receiveShadow', object.receiveShadow ); + + } + + if ( refreshMaterial ) { + + p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure ); + + if ( materialProperties.needsLights ) { + + // the current material requires lighting info + + // note: all lighting uniforms are always set correctly + // they simply reference the renderer's state for their + // values + // + // use the current material's .needsUpdate flags to set + // the GL state when required + + markUniformsLightsNeedsUpdate( m_uniforms, refreshLights ); + + } + + // refresh uniforms common to several materials + + if ( fog && material.fog ) { + + materials.refreshFogUniforms( m_uniforms, fog ); + + } + + materials.refreshMaterialUniforms( m_uniforms, material, _pixelRatio, _height ); + + WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures ); + + } + + if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) { + + WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, textures ); + material.uniformsNeedUpdate = false; + + } + + if ( material.isSpriteMaterial ) { + + p_uniforms.setValue( _gl, 'center', object.center ); + + } + + // common matrices + + p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix ); + p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix ); + p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld ); + + return program; + + } + + // If uniforms are marked as clean, they don't need to be loaded to the GPU. + + function markUniformsLightsNeedsUpdate( uniforms, value ) { + + uniforms.ambientLightColor.needsUpdate = value; + uniforms.lightProbe.needsUpdate = value; + + uniforms.directionalLights.needsUpdate = value; + uniforms.directionalLightShadows.needsUpdate = value; + uniforms.pointLights.needsUpdate = value; + uniforms.pointLightShadows.needsUpdate = value; + uniforms.spotLights.needsUpdate = value; + uniforms.spotLightShadows.needsUpdate = value; + uniforms.rectAreaLights.needsUpdate = value; + uniforms.hemisphereLights.needsUpdate = value; + + } + + function materialNeedsLights( material ) { + + return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial || + material.isMeshStandardMaterial || material.isShadowMaterial || + ( material.isShaderMaterial && material.lights === true ); + + } + + // + this.setFramebuffer = function ( value ) { + + if ( _framebuffer !== value && _currentRenderTarget === null ) _gl.bindFramebuffer( 36160, value ); + + _framebuffer = value; + + }; + + this.getActiveCubeFace = function () { + + return _currentActiveCubeFace; + + }; + + this.getActiveMipmapLevel = function () { + + return _currentActiveMipmapLevel; + + }; + + this.getRenderList = function () { + + return currentRenderList; + + }; + + this.setRenderList = function ( renderList ) { + + currentRenderList = renderList; + + }; + + this.getRenderTarget = function () { + + return _currentRenderTarget; + + }; + + this.setRenderTarget = function ( renderTarget, activeCubeFace = 0, activeMipmapLevel = 0 ) { + + _currentRenderTarget = renderTarget; + _currentActiveCubeFace = activeCubeFace; + _currentActiveMipmapLevel = activeMipmapLevel; + + if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) { + + textures.setupRenderTarget( renderTarget ); + + } + + let framebuffer = _framebuffer; + let isCube = false; + + if ( renderTarget ) { + + const __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer; + + if ( renderTarget.isWebGLCubeRenderTarget ) { + + framebuffer = __webglFramebuffer[ activeCubeFace ]; + isCube = true; + + } else if ( renderTarget.isWebGLMultisampleRenderTarget ) { + + framebuffer = properties.get( renderTarget ).__webglMultisampledFramebuffer; + + } else { + + framebuffer = __webglFramebuffer; + + } + + _currentViewport.copy( renderTarget.viewport ); + _currentScissor.copy( renderTarget.scissor ); + _currentScissorTest = renderTarget.scissorTest; + + } else { + + _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ).floor(); + _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ).floor(); + _currentScissorTest = _scissorTest; + + } + + if ( _currentFramebuffer !== framebuffer ) { + + _gl.bindFramebuffer( 36160, framebuffer ); + _currentFramebuffer = framebuffer; + + } + + state.viewport( _currentViewport ); + state.scissor( _currentScissor ); + state.setScissorTest( _currentScissorTest ); + + if ( isCube ) { + + const textureProperties = properties.get( renderTarget.texture ); + _gl.framebufferTexture2D( 36160, 36064, 34069 + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel ); + + } + + }; + + this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer, activeCubeFaceIndex ) { + + if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' ); + return; + + } + + let framebuffer = properties.get( renderTarget ).__webglFramebuffer; + + if ( renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== undefined ) { + + framebuffer = framebuffer[ activeCubeFaceIndex ]; + + } + + if ( framebuffer ) { + + let restore = false; + + if ( framebuffer !== _currentFramebuffer ) { + + _gl.bindFramebuffer( 36160, framebuffer ); + + restore = true; + + } + + try { + + const texture = renderTarget.texture; + const textureFormat = texture.format; + const textureType = texture.type; + + if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( 35739 ) ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' ); + return; + + } + + if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( 35738 ) && // IE11, Edge and Chrome Mac < 52 (#9513) + ! ( textureType === FloatType && ( capabilities.isWebGL2 || extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox + ! ( textureType === HalfFloatType && ( capabilities.isWebGL2 ? extensions.get( 'EXT_color_buffer_float' ) : extensions.get( 'EXT_color_buffer_half_float' ) ) ) ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' ); + return; + + } + + if ( _gl.checkFramebufferStatus( 36160 ) === 36053 ) { + + // the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604) + + if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) { + + _gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer ); + + } + + } else { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' ); + + } + + } finally { + + if ( restore ) { + + _gl.bindFramebuffer( 36160, _currentFramebuffer ); + + } + + } + + } + + }; + + this.copyFramebufferToTexture = function ( position, texture, level = 0 ) { + + const levelScale = Math.pow( 2, - level ); + const width = Math.floor( texture.image.width * levelScale ); + const height = Math.floor( texture.image.height * levelScale ); + const glFormat = utils.convert( texture.format ); + + textures.setTexture2D( texture, 0 ); + + _gl.copyTexImage2D( 3553, level, glFormat, position.x, position.y, width, height, 0 ); + + state.unbindTexture(); + + }; + + this.copyTextureToTexture = function ( position, srcTexture, dstTexture, level = 0 ) { + + const width = srcTexture.image.width; + const height = srcTexture.image.height; + const glFormat = utils.convert( dstTexture.format ); + const glType = utils.convert( dstTexture.type ); + + textures.setTexture2D( dstTexture, 0 ); + + // As another texture upload may have changed pixelStorei + // parameters, make sure they are correct for the dstTexture + _gl.pixelStorei( 37440, dstTexture.flipY ); + _gl.pixelStorei( 37441, dstTexture.premultiplyAlpha ); + _gl.pixelStorei( 3317, dstTexture.unpackAlignment ); + + if ( srcTexture.isDataTexture ) { + + _gl.texSubImage2D( 3553, level, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data ); + + } else { + + if ( srcTexture.isCompressedTexture ) { + + _gl.compressedTexSubImage2D( 3553, level, position.x, position.y, srcTexture.mipmaps[ 0 ].width, srcTexture.mipmaps[ 0 ].height, glFormat, srcTexture.mipmaps[ 0 ].data ); + + } else { + + _gl.texSubImage2D( 3553, level, position.x, position.y, glFormat, glType, srcTexture.image ); + + } + + } + + // Generate mipmaps only when copying level 0 + if ( level === 0 && dstTexture.generateMipmaps ) _gl.generateMipmap( 3553 ); + + state.unbindTexture(); + + }; + + this.initTexture = function ( texture ) { + + textures.setTexture2D( texture, 0 ); + + state.unbindTexture(); + + }; + + this.resetState = function () { + + state.reset(); + bindingStates.reset(); + + }; + + if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) { + + __THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) ); // eslint-disable-line no-undef + + } + +} + +function WebGL1Renderer( parameters ) { + + WebGLRenderer.call( this, parameters ); + +} + +WebGL1Renderer.prototype = Object.assign( Object.create( WebGLRenderer.prototype ), { + + constructor: WebGL1Renderer, + + isWebGL1Renderer: true + +} ); + +class FogExp2 { + + constructor( color, density ) { + + Object.defineProperty( this, 'isFogExp2', { value: true } ); + + this.name = ''; + + this.color = new Color( color ); + this.density = ( density !== undefined ) ? density : 0.00025; + + } + + clone() { + + return new FogExp2( this.color, this.density ); + + } + + toJSON( /* meta */ ) { + + return { + type: 'FogExp2', + color: this.color.getHex(), + density: this.density + }; + + } + +} + +class Fog { + + constructor( color, near, far ) { + + Object.defineProperty( this, 'isFog', { value: true } ); + + this.name = ''; + + this.color = new Color( color ); + + this.near = ( near !== undefined ) ? near : 1; + this.far = ( far !== undefined ) ? far : 1000; + + } + + clone() { + + return new Fog( this.color, this.near, this.far ); + + } + + toJSON( /* meta */ ) { + + return { + type: 'Fog', + color: this.color.getHex(), + near: this.near, + far: this.far + }; + + } + +} + +class Scene extends Object3D { + + constructor() { + + super(); + + Object.defineProperty( this, 'isScene', { value: true } ); + + this.type = 'Scene'; + + this.background = null; + this.environment = null; + this.fog = null; + + this.overrideMaterial = null; + + this.autoUpdate = true; // checked by the renderer + + if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) { + + __THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'observe', { detail: this } ) ); // eslint-disable-line no-undef + + } + + } + + copy( source, recursive ) { + + super.copy( source, recursive ); + + if ( source.background !== null ) this.background = source.background.clone(); + if ( source.environment !== null ) this.environment = source.environment.clone(); + if ( source.fog !== null ) this.fog = source.fog.clone(); + + if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone(); + + this.autoUpdate = source.autoUpdate; + this.matrixAutoUpdate = source.matrixAutoUpdate; + + return this; + + } + + toJSON( meta ) { + + const data = super.toJSON( meta ); + + if ( this.background !== null ) data.object.background = this.background.toJSON( meta ); + if ( this.environment !== null ) data.object.environment = this.environment.toJSON( meta ); + if ( this.fog !== null ) data.object.fog = this.fog.toJSON(); + + return data; + + } + +} + +function InterleavedBuffer( array, stride ) { + + this.array = array; + this.stride = stride; + this.count = array !== undefined ? array.length / stride : 0; + + this.usage = StaticDrawUsage; + this.updateRange = { offset: 0, count: - 1 }; + + this.version = 0; + + this.uuid = MathUtils.generateUUID(); + +} + +Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', { + + set: function ( value ) { + + if ( value === true ) this.version ++; + + } + +} ); + +Object.assign( InterleavedBuffer.prototype, { + + isInterleavedBuffer: true, + + onUploadCallback: function () {}, + + setUsage: function ( value ) { + + this.usage = value; + + return this; + + }, + + copy: function ( source ) { + + this.array = new source.array.constructor( source.array ); + this.count = source.count; + this.stride = source.stride; + this.usage = source.usage; + + return this; + + }, + + copyAt: function ( index1, attribute, index2 ) { + + index1 *= this.stride; + index2 *= attribute.stride; + + for ( let i = 0, l = this.stride; i < l; i ++ ) { + + this.array[ index1 + i ] = attribute.array[ index2 + i ]; + + } + + return this; + + }, + + set: function ( value, offset = 0 ) { + + this.array.set( value, offset ); + + return this; + + }, + + clone: function ( data ) { + + if ( data.arrayBuffers === undefined ) { + + data.arrayBuffers = {}; + + } + + if ( this.array.buffer._uuid === undefined ) { + + this.array.buffer._uuid = MathUtils.generateUUID(); + + } + + if ( data.arrayBuffers[ this.array.buffer._uuid ] === undefined ) { + + data.arrayBuffers[ this.array.buffer._uuid ] = this.array.slice( 0 ).buffer; + + } + + const array = new this.array.constructor( data.arrayBuffers[ this.array.buffer._uuid ] ); + + const ib = new InterleavedBuffer( array, this.stride ); + ib.setUsage( this.usage ); + + return ib; + + }, + + onUpload: function ( callback ) { + + this.onUploadCallback = callback; + + return this; + + }, + + toJSON: function ( data ) { + + if ( data.arrayBuffers === undefined ) { + + data.arrayBuffers = {}; + + } + + // generate UUID for array buffer if necessary + + if ( this.array.buffer._uuid === undefined ) { + + this.array.buffer._uuid = MathUtils.generateUUID(); + + } + + if ( data.arrayBuffers[ this.array.buffer._uuid ] === undefined ) { + + data.arrayBuffers[ this.array.buffer._uuid ] = Array.prototype.slice.call( new Uint32Array( this.array.buffer ) ); + + } + + // + + return { + uuid: this.uuid, + buffer: this.array.buffer._uuid, + type: this.array.constructor.name, + stride: this.stride + }; + + } + +} ); + +const _vector$6 = new Vector3(); + +function InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) { + + this.name = ''; + + this.data = interleavedBuffer; + this.itemSize = itemSize; + this.offset = offset; + + this.normalized = normalized === true; + +} + +Object.defineProperties( InterleavedBufferAttribute.prototype, { + + count: { + + get: function () { + + return this.data.count; + + } + + }, + + array: { + + get: function () { + + return this.data.array; + + } + + }, + + needsUpdate: { + + set: function ( value ) { + + this.data.needsUpdate = value; + + } + + } + +} ); + +Object.assign( InterleavedBufferAttribute.prototype, { + + isInterleavedBufferAttribute: true, + + applyMatrix4: function ( m ) { + + for ( let i = 0, l = this.data.count; i < l; i ++ ) { + + _vector$6.x = this.getX( i ); + _vector$6.y = this.getY( i ); + _vector$6.z = this.getZ( i ); + + _vector$6.applyMatrix4( m ); + + this.setXYZ( i, _vector$6.x, _vector$6.y, _vector$6.z ); + + } + + return this; + + }, + + setX: function ( index, x ) { + + this.data.array[ index * this.data.stride + this.offset ] = x; + + return this; + + }, + + setY: function ( index, y ) { + + this.data.array[ index * this.data.stride + this.offset + 1 ] = y; + + return this; + + }, + + setZ: function ( index, z ) { + + this.data.array[ index * this.data.stride + this.offset + 2 ] = z; + + return this; + + }, + + setW: function ( index, w ) { + + this.data.array[ index * this.data.stride + this.offset + 3 ] = w; + + return this; + + }, + + getX: function ( index ) { + + return this.data.array[ index * this.data.stride + this.offset ]; + + }, + + getY: function ( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 1 ]; + + }, + + getZ: function ( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 2 ]; + + }, + + getW: function ( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 3 ]; + + }, + + setXY: function ( index, x, y ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + + return this; + + }, + + setXYZ: function ( index, x, y, z ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + this.data.array[ index + 2 ] = z; + + return this; + + }, + + setXYZW: function ( index, x, y, z, w ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + this.data.array[ index + 2 ] = z; + this.data.array[ index + 3 ] = w; + + return this; + + }, + + clone: function ( data ) { + + if ( data === undefined ) { + + console.log( 'THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.' ); + + const array = []; + + for ( let i = 0; i < this.count; i ++ ) { + + const index = i * this.data.stride + this.offset; + + for ( let j = 0; j < this.itemSize; j ++ ) { + + array.push( this.data.array[ index + j ] ); + + } + + } + + return new BufferAttribute( new this.array.constructor( array ), this.itemSize, this.normalized ); + + } else { + + if ( data.interleavedBuffers === undefined ) { + + data.interleavedBuffers = {}; + + } + + if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) { + + data.interleavedBuffers[ this.data.uuid ] = this.data.clone( data ); + + } + + return new InterleavedBufferAttribute( data.interleavedBuffers[ this.data.uuid ], this.itemSize, this.offset, this.normalized ); + + } + + }, + + toJSON: function ( data ) { + + if ( data === undefined ) { + + console.log( 'THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.' ); + + const array = []; + + for ( let i = 0; i < this.count; i ++ ) { + + const index = i * this.data.stride + this.offset; + + for ( let j = 0; j < this.itemSize; j ++ ) { + + array.push( this.data.array[ index + j ] ); + + } + + } + + // deinterleave data and save it as an ordinary buffer attribute for now + + return { + itemSize: this.itemSize, + type: this.array.constructor.name, + array: array, + normalized: this.normalized + }; + + } else { + + // save as true interlaved attribtue + + if ( data.interleavedBuffers === undefined ) { + + data.interleavedBuffers = {}; + + } + + if ( data.interleavedBuffers[ this.data.uuid ] === undefined ) { + + data.interleavedBuffers[ this.data.uuid ] = this.data.toJSON( data ); + + } + + return { + isInterleavedBufferAttribute: true, + itemSize: this.itemSize, + data: this.data.uuid, + offset: this.offset, + normalized: this.normalized + }; + + } + + } + +} ); + +/** + * parameters = { + * color: , + * map: new THREE.Texture( ), + * alphaMap: new THREE.Texture( ), + * rotation: , + * sizeAttenuation: + * } + */ + +function SpriteMaterial( parameters ) { + + Material.call( this ); + + this.type = 'SpriteMaterial'; + + this.color = new Color( 0xffffff ); + + this.map = null; + + this.alphaMap = null; + + this.rotation = 0; + + this.sizeAttenuation = true; + + this.transparent = true; + + this.setValues( parameters ); + +} + +SpriteMaterial.prototype = Object.create( Material.prototype ); +SpriteMaterial.prototype.constructor = SpriteMaterial; +SpriteMaterial.prototype.isSpriteMaterial = true; + +SpriteMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.rotation = source.rotation; + + this.sizeAttenuation = source.sizeAttenuation; + + return this; + +}; + +let _geometry; + +const _intersectPoint = new Vector3(); +const _worldScale = new Vector3(); +const _mvPosition = new Vector3(); + +const _alignedPosition = new Vector2(); +const _rotatedPosition = new Vector2(); +const _viewWorldMatrix = new Matrix4(); + +const _vA$1 = new Vector3(); +const _vB$1 = new Vector3(); +const _vC$1 = new Vector3(); + +const _uvA$1 = new Vector2(); +const _uvB$1 = new Vector2(); +const _uvC$1 = new Vector2(); + +function Sprite( material ) { + + Object3D.call( this ); + + this.type = 'Sprite'; + + if ( _geometry === undefined ) { + + _geometry = new BufferGeometry(); + + const float32Array = new Float32Array( [ + - 0.5, - 0.5, 0, 0, 0, + 0.5, - 0.5, 0, 1, 0, + 0.5, 0.5, 0, 1, 1, + - 0.5, 0.5, 0, 0, 1 + ] ); + + const interleavedBuffer = new InterleavedBuffer( float32Array, 5 ); + + _geometry.setIndex( [ 0, 1, 2, 0, 2, 3 ] ); + _geometry.setAttribute( 'position', new InterleavedBufferAttribute( interleavedBuffer, 3, 0, false ) ); + _geometry.setAttribute( 'uv', new InterleavedBufferAttribute( interleavedBuffer, 2, 3, false ) ); + + } + + this.geometry = _geometry; + this.material = ( material !== undefined ) ? material : new SpriteMaterial(); + + this.center = new Vector2( 0.5, 0.5 ); + +} + +Sprite.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Sprite, + + isSprite: true, + + raycast: function ( raycaster, intersects ) { + + if ( raycaster.camera === null ) { + + console.error( 'THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.' ); + + } + + _worldScale.setFromMatrixScale( this.matrixWorld ); + + _viewWorldMatrix.copy( raycaster.camera.matrixWorld ); + this.modelViewMatrix.multiplyMatrices( raycaster.camera.matrixWorldInverse, this.matrixWorld ); + + _mvPosition.setFromMatrixPosition( this.modelViewMatrix ); + + if ( raycaster.camera.isPerspectiveCamera && this.material.sizeAttenuation === false ) { + + _worldScale.multiplyScalar( - _mvPosition.z ); + + } + + const rotation = this.material.rotation; + let sin, cos; + + if ( rotation !== 0 ) { + + cos = Math.cos( rotation ); + sin = Math.sin( rotation ); + + } + + const center = this.center; + + transformVertex( _vA$1.set( - 0.5, - 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos ); + transformVertex( _vB$1.set( 0.5, - 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos ); + transformVertex( _vC$1.set( 0.5, 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos ); + + _uvA$1.set( 0, 0 ); + _uvB$1.set( 1, 0 ); + _uvC$1.set( 1, 1 ); + + // check first triangle + let intersect = raycaster.ray.intersectTriangle( _vA$1, _vB$1, _vC$1, false, _intersectPoint ); + + if ( intersect === null ) { + + // check second triangle + transformVertex( _vB$1.set( - 0.5, 0.5, 0 ), _mvPosition, center, _worldScale, sin, cos ); + _uvB$1.set( 0, 1 ); + + intersect = raycaster.ray.intersectTriangle( _vA$1, _vC$1, _vB$1, false, _intersectPoint ); + if ( intersect === null ) { + + return; + + } + + } + + const distance = raycaster.ray.origin.distanceTo( _intersectPoint ); + + if ( distance < raycaster.near || distance > raycaster.far ) return; + + intersects.push( { + + distance: distance, + point: _intersectPoint.clone(), + uv: Triangle.getUV( _intersectPoint, _vA$1, _vB$1, _vC$1, _uvA$1, _uvB$1, _uvC$1, new Vector2() ), + face: null, + object: this + + } ); + + }, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + if ( source.center !== undefined ) this.center.copy( source.center ); + + this.material = source.material; + + return this; + + } + +} ); + +function transformVertex( vertexPosition, mvPosition, center, scale, sin, cos ) { + + // compute position in camera space + _alignedPosition.subVectors( vertexPosition, center ).addScalar( 0.5 ).multiply( scale ); + + // to check if rotation is not zero + if ( sin !== undefined ) { + + _rotatedPosition.x = ( cos * _alignedPosition.x ) - ( sin * _alignedPosition.y ); + _rotatedPosition.y = ( sin * _alignedPosition.x ) + ( cos * _alignedPosition.y ); + + } else { + + _rotatedPosition.copy( _alignedPosition ); + + } + + + vertexPosition.copy( mvPosition ); + vertexPosition.x += _rotatedPosition.x; + vertexPosition.y += _rotatedPosition.y; + + // transform to world space + vertexPosition.applyMatrix4( _viewWorldMatrix ); + +} + +const _v1$4 = new Vector3(); +const _v2$2 = new Vector3(); + +function LOD() { + + Object3D.call( this ); + + this._currentLevel = 0; + + this.type = 'LOD'; + + Object.defineProperties( this, { + levels: { + enumerable: true, + value: [] + } + } ); + + this.autoUpdate = true; + +} + +LOD.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: LOD, + + isLOD: true, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source, false ); + + const levels = source.levels; + + for ( let i = 0, l = levels.length; i < l; i ++ ) { + + const level = levels[ i ]; + + this.addLevel( level.object.clone(), level.distance ); + + } + + this.autoUpdate = source.autoUpdate; + + return this; + + }, + + addLevel: function ( object, distance = 0 ) { + + distance = Math.abs( distance ); + + const levels = this.levels; + + let l; + + for ( l = 0; l < levels.length; l ++ ) { + + if ( distance < levels[ l ].distance ) { + + break; + + } + + } + + levels.splice( l, 0, { distance: distance, object: object } ); + + this.add( object ); + + return this; + + }, + + getCurrentLevel: function () { + + return this._currentLevel; + + }, + + getObjectForDistance: function ( distance ) { + + const levels = this.levels; + + if ( levels.length > 0 ) { + + let i, l; + + for ( i = 1, l = levels.length; i < l; i ++ ) { + + if ( distance < levels[ i ].distance ) { + + break; + + } + + } + + return levels[ i - 1 ].object; + + } + + return null; + + }, + + raycast: function ( raycaster, intersects ) { + + const levels = this.levels; + + if ( levels.length > 0 ) { + + _v1$4.setFromMatrixPosition( this.matrixWorld ); + + const distance = raycaster.ray.origin.distanceTo( _v1$4 ); + + this.getObjectForDistance( distance ).raycast( raycaster, intersects ); + + } + + }, + + update: function ( camera ) { + + const levels = this.levels; + + if ( levels.length > 1 ) { + + _v1$4.setFromMatrixPosition( camera.matrixWorld ); + _v2$2.setFromMatrixPosition( this.matrixWorld ); + + const distance = _v1$4.distanceTo( _v2$2 ) / camera.zoom; + + levels[ 0 ].object.visible = true; + + let i, l; + + for ( i = 1, l = levels.length; i < l; i ++ ) { + + if ( distance >= levels[ i ].distance ) { + + levels[ i - 1 ].object.visible = false; + levels[ i ].object.visible = true; + + } else { + + break; + + } + + } + + this._currentLevel = i - 1; + + for ( ; i < l; i ++ ) { + + levels[ i ].object.visible = false; + + } + + } + + }, + + toJSON: function ( meta ) { + + const data = Object3D.prototype.toJSON.call( this, meta ); + + if ( this.autoUpdate === false ) data.object.autoUpdate = false; + + data.object.levels = []; + + const levels = this.levels; + + for ( let i = 0, l = levels.length; i < l; i ++ ) { + + const level = levels[ i ]; + + data.object.levels.push( { + object: level.object.uuid, + distance: level.distance + } ); + + } + + return data; + + } + +} ); + +const _basePosition = new Vector3(); + +const _skinIndex = new Vector4(); +const _skinWeight = new Vector4(); + +const _vector$7 = new Vector3(); +const _matrix$1 = new Matrix4(); + +function SkinnedMesh( geometry, material ) { + + if ( geometry && geometry.isGeometry ) { + + console.error( 'THREE.SkinnedMesh no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + Mesh.call( this, geometry, material ); + + this.type = 'SkinnedMesh'; + + this.bindMode = 'attached'; + this.bindMatrix = new Matrix4(); + this.bindMatrixInverse = new Matrix4(); + +} + +SkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), { + + constructor: SkinnedMesh, + + isSkinnedMesh: true, + + copy: function ( source ) { + + Mesh.prototype.copy.call( this, source ); + + this.bindMode = source.bindMode; + this.bindMatrix.copy( source.bindMatrix ); + this.bindMatrixInverse.copy( source.bindMatrixInverse ); + + this.skeleton = source.skeleton; + + return this; + + }, + + bind: function ( skeleton, bindMatrix ) { + + this.skeleton = skeleton; + + if ( bindMatrix === undefined ) { + + this.updateMatrixWorld( true ); + + this.skeleton.calculateInverses(); + + bindMatrix = this.matrixWorld; + + } + + this.bindMatrix.copy( bindMatrix ); + this.bindMatrixInverse.copy( bindMatrix ).invert(); + + }, + + pose: function () { + + this.skeleton.pose(); + + }, + + normalizeSkinWeights: function () { + + const vector = new Vector4(); + + const skinWeight = this.geometry.attributes.skinWeight; + + for ( let i = 0, l = skinWeight.count; i < l; i ++ ) { + + vector.x = skinWeight.getX( i ); + vector.y = skinWeight.getY( i ); + vector.z = skinWeight.getZ( i ); + vector.w = skinWeight.getW( i ); + + const scale = 1.0 / vector.manhattanLength(); + + if ( scale !== Infinity ) { + + vector.multiplyScalar( scale ); + + } else { + + vector.set( 1, 0, 0, 0 ); // do something reasonable + + } + + skinWeight.setXYZW( i, vector.x, vector.y, vector.z, vector.w ); + + } + + }, + + updateMatrixWorld: function ( force ) { + + Mesh.prototype.updateMatrixWorld.call( this, force ); + + if ( this.bindMode === 'attached' ) { + + this.bindMatrixInverse.copy( this.matrixWorld ).invert(); + + } else if ( this.bindMode === 'detached' ) { + + this.bindMatrixInverse.copy( this.bindMatrix ).invert(); + + } else { + + console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode ); + + } + + }, + + boneTransform: function ( index, target ) { + + const skeleton = this.skeleton; + const geometry = this.geometry; + + _skinIndex.fromBufferAttribute( geometry.attributes.skinIndex, index ); + _skinWeight.fromBufferAttribute( geometry.attributes.skinWeight, index ); + + _basePosition.fromBufferAttribute( geometry.attributes.position, index ).applyMatrix4( this.bindMatrix ); + + target.set( 0, 0, 0 ); + + for ( let i = 0; i < 4; i ++ ) { + + const weight = _skinWeight.getComponent( i ); + + if ( weight !== 0 ) { + + const boneIndex = _skinIndex.getComponent( i ); + + _matrix$1.multiplyMatrices( skeleton.bones[ boneIndex ].matrixWorld, skeleton.boneInverses[ boneIndex ] ); + + target.addScaledVector( _vector$7.copy( _basePosition ).applyMatrix4( _matrix$1 ), weight ); + + } + + } + + return target.applyMatrix4( this.bindMatrixInverse ); + + } + +} ); + +function Bone() { + + Object3D.call( this ); + + this.type = 'Bone'; + +} + +Bone.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Bone, + + isBone: true + +} ); + +const _offsetMatrix = new Matrix4(); +const _identityMatrix = new Matrix4(); + +function Skeleton( bones = [], boneInverses = [] ) { + + this.uuid = MathUtils.generateUUID(); + + this.bones = bones.slice( 0 ); + this.boneInverses = boneInverses; + this.boneMatrices = null; + + this.boneTexture = null; + this.boneTextureSize = 0; + + this.frame = - 1; + + this.init(); + +} + +Object.assign( Skeleton.prototype, { + + init: function () { + + const bones = this.bones; + const boneInverses = this.boneInverses; + + this.boneMatrices = new Float32Array( bones.length * 16 ); + + // calculate inverse bone matrices if necessary + + if ( boneInverses.length === 0 ) { + + this.calculateInverses(); + + } else { + + // handle special case + + if ( bones.length !== boneInverses.length ) { + + console.warn( 'THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.' ); + + this.boneInverses = []; + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + this.boneInverses.push( new Matrix4() ); + + } + + } + + } + + }, + + calculateInverses: function () { + + this.boneInverses.length = 0; + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + const inverse = new Matrix4(); + + if ( this.bones[ i ] ) { + + inverse.copy( this.bones[ i ].matrixWorld ).invert(); + + } + + this.boneInverses.push( inverse ); + + } + + }, + + pose: function () { + + // recover the bind-time world matrices + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + const bone = this.bones[ i ]; + + if ( bone ) { + + bone.matrixWorld.copy( this.boneInverses[ i ] ).invert(); + + } + + } + + // compute the local matrices, positions, rotations and scales + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + const bone = this.bones[ i ]; + + if ( bone ) { + + if ( bone.parent && bone.parent.isBone ) { + + bone.matrix.copy( bone.parent.matrixWorld ).invert(); + bone.matrix.multiply( bone.matrixWorld ); + + } else { + + bone.matrix.copy( bone.matrixWorld ); + + } + + bone.matrix.decompose( bone.position, bone.quaternion, bone.scale ); + + } + + } + + }, + + update: function () { + + const bones = this.bones; + const boneInverses = this.boneInverses; + const boneMatrices = this.boneMatrices; + const boneTexture = this.boneTexture; + + // flatten bone matrices to array + + for ( let i = 0, il = bones.length; i < il; i ++ ) { + + // compute the offset between the current and the original transform + + const matrix = bones[ i ] ? bones[ i ].matrixWorld : _identityMatrix; + + _offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] ); + _offsetMatrix.toArray( boneMatrices, i * 16 ); + + } + + if ( boneTexture !== null ) { + + boneTexture.needsUpdate = true; + + } + + }, + + clone: function () { + + return new Skeleton( this.bones, this.boneInverses ); + + }, + + getBoneByName: function ( name ) { + + for ( let i = 0, il = this.bones.length; i < il; i ++ ) { + + const bone = this.bones[ i ]; + + if ( bone.name === name ) { + + return bone; + + } + + } + + return undefined; + + }, + + dispose: function ( ) { + + if ( this.boneTexture !== null ) { + + this.boneTexture.dispose(); + + this.boneTexture = null; + + } + + }, + + fromJSON: function ( json, bones ) { + + this.uuid = json.uuid; + + for ( let i = 0, l = json.bones.length; i < l; i ++ ) { + + const uuid = json.bones[ i ]; + let bone = bones[ uuid ]; + + if ( bone === undefined ) { + + console.warn( 'THREE.Skeleton: No bone found with UUID:', uuid ); + bone = new Bone(); + + } + + this.bones.push( bone ); + this.boneInverses.push( new Matrix4().fromArray( json.boneInverses[ i ] ) ); + + } + + this.init(); + + return this; + + }, + + toJSON: function () { + + const data = { + metadata: { + version: 4.5, + type: 'Skeleton', + generator: 'Skeleton.toJSON' + }, + bones: [], + boneInverses: [] + }; + + data.uuid = this.uuid; + + const bones = this.bones; + const boneInverses = this.boneInverses; + + for ( let i = 0, l = bones.length; i < l; i ++ ) { + + const bone = bones[ i ]; + data.bones.push( bone.uuid ); + + const boneInverse = boneInverses[ i ]; + data.boneInverses.push( boneInverse.toArray() ); + + } + + return data; + + } + +} ); + +const _instanceLocalMatrix = new Matrix4(); +const _instanceWorldMatrix = new Matrix4(); + +const _instanceIntersects = []; + +const _mesh = new Mesh(); + +function InstancedMesh( geometry, material, count ) { + + Mesh.call( this, geometry, material ); + + this.instanceMatrix = new BufferAttribute( new Float32Array( count * 16 ), 16 ); + this.instanceColor = null; + + this.count = count; + + this.frustumCulled = false; + +} + +InstancedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), { + + constructor: InstancedMesh, + + isInstancedMesh: true, + + copy: function ( source ) { + + Mesh.prototype.copy.call( this, source ); + + this.instanceMatrix.copy( source.instanceMatrix ); + this.count = source.count; + + return this; + + }, + + getColorAt: function ( index, color ) { + + color.fromArray( this.instanceColor.array, index * 3 ); + + }, + + getMatrixAt: function ( index, matrix ) { + + matrix.fromArray( this.instanceMatrix.array, index * 16 ); + + }, + + raycast: function ( raycaster, intersects ) { + + const matrixWorld = this.matrixWorld; + const raycastTimes = this.count; + + _mesh.geometry = this.geometry; + _mesh.material = this.material; + + if ( _mesh.material === undefined ) return; + + for ( let instanceId = 0; instanceId < raycastTimes; instanceId ++ ) { + + // calculate the world matrix for each instance + + this.getMatrixAt( instanceId, _instanceLocalMatrix ); + + _instanceWorldMatrix.multiplyMatrices( matrixWorld, _instanceLocalMatrix ); + + // the mesh represents this single instance + + _mesh.matrixWorld = _instanceWorldMatrix; + + _mesh.raycast( raycaster, _instanceIntersects ); + + // process the result of raycast + + for ( let i = 0, l = _instanceIntersects.length; i < l; i ++ ) { + + const intersect = _instanceIntersects[ i ]; + intersect.instanceId = instanceId; + intersect.object = this; + intersects.push( intersect ); + + } + + _instanceIntersects.length = 0; + + } + + }, + + setColorAt: function ( index, color ) { + + if ( this.instanceColor === null ) { + + this.instanceColor = new BufferAttribute( new Float32Array( this.count * 3 ), 3 ); + + } + + color.toArray( this.instanceColor.array, index * 3 ); + + }, + + setMatrixAt: function ( index, matrix ) { + + matrix.toArray( this.instanceMatrix.array, index * 16 ); + + }, + + updateMorphTargets: function () { + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + +} ); + +/** + * parameters = { + * color: , + * opacity: , + * + * linewidth: , + * linecap: "round", + * linejoin: "round" + * } + */ + +function LineBasicMaterial( parameters ) { + + Material.call( this ); + + this.type = 'LineBasicMaterial'; + + this.color = new Color( 0xffffff ); + + this.linewidth = 1; + this.linecap = 'round'; + this.linejoin = 'round'; + + this.morphTargets = false; + + this.setValues( parameters ); + +} + +LineBasicMaterial.prototype = Object.create( Material.prototype ); +LineBasicMaterial.prototype.constructor = LineBasicMaterial; + +LineBasicMaterial.prototype.isLineBasicMaterial = true; + +LineBasicMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.linewidth = source.linewidth; + this.linecap = source.linecap; + this.linejoin = source.linejoin; + + this.morphTargets = source.morphTargets; + + return this; + +}; + +const _start = new Vector3(); +const _end = new Vector3(); +const _inverseMatrix$1 = new Matrix4(); +const _ray$1 = new Ray(); +const _sphere$2 = new Sphere(); + +function Line( geometry = new BufferGeometry(), material = new LineBasicMaterial() ) { + + Object3D.call( this ); + + this.type = 'Line'; + + this.geometry = geometry; + this.material = material; + + this.updateMorphTargets(); + +} + +Line.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Line, + + isLine: true, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + this.material = source.material; + this.geometry = source.geometry; + + return this; + + }, + + computeLineDistances: function () { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + // we assume non-indexed geometry + + if ( geometry.index === null ) { + + const positionAttribute = geometry.attributes.position; + const lineDistances = [ 0 ]; + + for ( let i = 1, l = positionAttribute.count; i < l; i ++ ) { + + _start.fromBufferAttribute( positionAttribute, i - 1 ); + _end.fromBufferAttribute( positionAttribute, i ); + + lineDistances[ i ] = lineDistances[ i - 1 ]; + lineDistances[ i ] += _start.distanceTo( _end ); + + } + + geometry.setAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) ); + + } else { + + console.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' ); + + } + + } else if ( geometry.isGeometry ) { + + const vertices = geometry.vertices; + const lineDistances = geometry.lineDistances; + + lineDistances[ 0 ] = 0; + + for ( let i = 1, l = vertices.length; i < l; i ++ ) { + + lineDistances[ i ] = lineDistances[ i - 1 ]; + lineDistances[ i ] += vertices[ i - 1 ].distanceTo( vertices[ i ] ); + + } + + } + + return this; + + }, + + raycast: function ( raycaster, intersects ) { + + const geometry = this.geometry; + const matrixWorld = this.matrixWorld; + const threshold = raycaster.params.Line.threshold; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + _sphere$2.copy( geometry.boundingSphere ); + _sphere$2.applyMatrix4( matrixWorld ); + _sphere$2.radius += threshold; + + if ( raycaster.ray.intersectsSphere( _sphere$2 ) === false ) return; + + // + + _inverseMatrix$1.copy( matrixWorld ).invert(); + _ray$1.copy( raycaster.ray ).applyMatrix4( _inverseMatrix$1 ); + + const localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 ); + const localThresholdSq = localThreshold * localThreshold; + + const vStart = new Vector3(); + const vEnd = new Vector3(); + const interSegment = new Vector3(); + const interRay = new Vector3(); + const step = this.isLineSegments ? 2 : 1; + + if ( geometry.isBufferGeometry ) { + + const index = geometry.index; + const attributes = geometry.attributes; + const positionAttribute = attributes.position; + + if ( index !== null ) { + + const indices = index.array; + + for ( let i = 0, l = indices.length - 1; i < l; i += step ) { + + const a = indices[ i ]; + const b = indices[ i + 1 ]; + + vStart.fromBufferAttribute( positionAttribute, a ); + vEnd.fromBufferAttribute( positionAttribute, b ); + + const distSq = _ray$1.distanceSqToSegment( vStart, vEnd, interRay, interSegment ); + + if ( distSq > localThresholdSq ) continue; + + interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation + + const distance = raycaster.ray.origin.distanceTo( interRay ); + + if ( distance < raycaster.near || distance > raycaster.far ) continue; + + intersects.push( { + + distance: distance, + // What do we want? intersection point on the ray or on the segment?? + // point: raycaster.ray.at( distance ), + point: interSegment.clone().applyMatrix4( this.matrixWorld ), + index: i, + face: null, + faceIndex: null, + object: this + + } ); + + } + + } else { + + for ( let i = 0, l = positionAttribute.count - 1; i < l; i += step ) { + + vStart.fromBufferAttribute( positionAttribute, i ); + vEnd.fromBufferAttribute( positionAttribute, i + 1 ); + + const distSq = _ray$1.distanceSqToSegment( vStart, vEnd, interRay, interSegment ); + + if ( distSq > localThresholdSq ) continue; + + interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation + + const distance = raycaster.ray.origin.distanceTo( interRay ); + + if ( distance < raycaster.near || distance > raycaster.far ) continue; + + intersects.push( { + + distance: distance, + // What do we want? intersection point on the ray or on the segment?? + // point: raycaster.ray.at( distance ), + point: interSegment.clone().applyMatrix4( this.matrixWorld ), + index: i, + face: null, + faceIndex: null, + object: this + + } ); + + } + + } + + } else if ( geometry.isGeometry ) { + + const vertices = geometry.vertices; + const nbVertices = vertices.length; + + for ( let i = 0; i < nbVertices - 1; i += step ) { + + const distSq = _ray$1.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment ); + + if ( distSq > localThresholdSq ) continue; + + interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation + + const distance = raycaster.ray.origin.distanceTo( interRay ); + + if ( distance < raycaster.near || distance > raycaster.far ) continue; + + intersects.push( { + + distance: distance, + // What do we want? intersection point on the ray or on the segment?? + // point: raycaster.ray.at( distance ), + point: interSegment.clone().applyMatrix4( this.matrixWorld ), + index: i, + face: null, + faceIndex: null, + object: this + + } ); + + } + + } + + }, + + updateMorphTargets: function () { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + const morphAttributes = geometry.morphAttributes; + const keys = Object.keys( morphAttributes ); + + if ( keys.length > 0 ) { + + const morphAttribute = morphAttributes[ keys[ 0 ] ]; + + if ( morphAttribute !== undefined ) { + + this.morphTargetInfluences = []; + this.morphTargetDictionary = {}; + + for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) { + + const name = morphAttribute[ m ].name || String( m ); + + this.morphTargetInfluences.push( 0 ); + this.morphTargetDictionary[ name ] = m; + + } + + } + + } + + } else { + + const morphTargets = geometry.morphTargets; + + if ( morphTargets !== undefined && morphTargets.length > 0 ) { + + console.error( 'THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + + } + +} ); + +const _start$1 = new Vector3(); +const _end$1 = new Vector3(); + +function LineSegments( geometry, material ) { + + Line.call( this, geometry, material ); + + this.type = 'LineSegments'; + +} + +LineSegments.prototype = Object.assign( Object.create( Line.prototype ), { + + constructor: LineSegments, + + isLineSegments: true, + + computeLineDistances: function () { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + // we assume non-indexed geometry + + if ( geometry.index === null ) { + + const positionAttribute = geometry.attributes.position; + const lineDistances = []; + + for ( let i = 0, l = positionAttribute.count; i < l; i += 2 ) { + + _start$1.fromBufferAttribute( positionAttribute, i ); + _end$1.fromBufferAttribute( positionAttribute, i + 1 ); + + lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ]; + lineDistances[ i + 1 ] = lineDistances[ i ] + _start$1.distanceTo( _end$1 ); + + } + + geometry.setAttribute( 'lineDistance', new Float32BufferAttribute( lineDistances, 1 ) ); + + } else { + + console.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' ); + + } + + } else if ( geometry.isGeometry ) { + + const vertices = geometry.vertices; + const lineDistances = geometry.lineDistances; + + for ( let i = 0, l = vertices.length; i < l; i += 2 ) { + + _start$1.copy( vertices[ i ] ); + _end$1.copy( vertices[ i + 1 ] ); + + lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ]; + lineDistances[ i + 1 ] = lineDistances[ i ] + _start$1.distanceTo( _end$1 ); + + } + + } + + return this; + + } + +} ); + +function LineLoop( geometry, material ) { + + Line.call( this, geometry, material ); + + this.type = 'LineLoop'; + +} + +LineLoop.prototype = Object.assign( Object.create( Line.prototype ), { + + constructor: LineLoop, + + isLineLoop: true, + +} ); + +/** + * parameters = { + * color: , + * opacity: , + * map: new THREE.Texture( ), + * alphaMap: new THREE.Texture( ), + * + * size: , + * sizeAttenuation: + * + * morphTargets: + * } + */ + +function PointsMaterial( parameters ) { + + Material.call( this ); + + this.type = 'PointsMaterial'; + + this.color = new Color( 0xffffff ); + + this.map = null; + + this.alphaMap = null; + + this.size = 1; + this.sizeAttenuation = true; + + this.morphTargets = false; + + this.setValues( parameters ); + +} + +PointsMaterial.prototype = Object.create( Material.prototype ); +PointsMaterial.prototype.constructor = PointsMaterial; + +PointsMaterial.prototype.isPointsMaterial = true; + +PointsMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.size = source.size; + this.sizeAttenuation = source.sizeAttenuation; + + this.morphTargets = source.morphTargets; + + return this; + +}; + +const _inverseMatrix$2 = new Matrix4(); +const _ray$2 = new Ray(); +const _sphere$3 = new Sphere(); +const _position$1 = new Vector3(); + +function Points( geometry = new BufferGeometry(), material = new PointsMaterial() ) { + + Object3D.call( this ); + + this.type = 'Points'; + + this.geometry = geometry; + this.material = material; + + this.updateMorphTargets(); + +} + +Points.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Points, + + isPoints: true, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + this.material = source.material; + this.geometry = source.geometry; + + return this; + + }, + + raycast: function ( raycaster, intersects ) { + + const geometry = this.geometry; + const matrixWorld = this.matrixWorld; + const threshold = raycaster.params.Points.threshold; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + _sphere$3.copy( geometry.boundingSphere ); + _sphere$3.applyMatrix4( matrixWorld ); + _sphere$3.radius += threshold; + + if ( raycaster.ray.intersectsSphere( _sphere$3 ) === false ) return; + + // + + _inverseMatrix$2.copy( matrixWorld ).invert(); + _ray$2.copy( raycaster.ray ).applyMatrix4( _inverseMatrix$2 ); + + const localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 ); + const localThresholdSq = localThreshold * localThreshold; + + if ( geometry.isBufferGeometry ) { + + const index = geometry.index; + const attributes = geometry.attributes; + const positionAttribute = attributes.position; + + if ( index !== null ) { + + const indices = index.array; + + for ( let i = 0, il = indices.length; i < il; i ++ ) { + + const a = indices[ i ]; + + _position$1.fromBufferAttribute( positionAttribute, a ); + + testPoint( _position$1, a, localThresholdSq, matrixWorld, raycaster, intersects, this ); + + } + + } else { + + for ( let i = 0, l = positionAttribute.count; i < l; i ++ ) { + + _position$1.fromBufferAttribute( positionAttribute, i ); + + testPoint( _position$1, i, localThresholdSq, matrixWorld, raycaster, intersects, this ); + + } + + } + + } else { + + const vertices = geometry.vertices; + + for ( let i = 0, l = vertices.length; i < l; i ++ ) { + + testPoint( vertices[ i ], i, localThresholdSq, matrixWorld, raycaster, intersects, this ); + + } + + } + + }, + + updateMorphTargets: function () { + + const geometry = this.geometry; + + if ( geometry.isBufferGeometry ) { + + const morphAttributes = geometry.morphAttributes; + const keys = Object.keys( morphAttributes ); + + if ( keys.length > 0 ) { + + const morphAttribute = morphAttributes[ keys[ 0 ] ]; + + if ( morphAttribute !== undefined ) { + + this.morphTargetInfluences = []; + this.morphTargetDictionary = {}; + + for ( let m = 0, ml = morphAttribute.length; m < ml; m ++ ) { + + const name = morphAttribute[ m ].name || String( m ); + + this.morphTargetInfluences.push( 0 ); + this.morphTargetDictionary[ name ] = m; + + } + + } + + } + + } else { + + const morphTargets = geometry.morphTargets; + + if ( morphTargets !== undefined && morphTargets.length > 0 ) { + + console.error( 'THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.' ); + + } + + } + + } + +} ); + +function testPoint( point, index, localThresholdSq, matrixWorld, raycaster, intersects, object ) { + + const rayPointDistanceSq = _ray$2.distanceSqToPoint( point ); + + if ( rayPointDistanceSq < localThresholdSq ) { + + const intersectPoint = new Vector3(); + + _ray$2.closestPointToPoint( point, intersectPoint ); + intersectPoint.applyMatrix4( matrixWorld ); + + const distance = raycaster.ray.origin.distanceTo( intersectPoint ); + + if ( distance < raycaster.near || distance > raycaster.far ) return; + + intersects.push( { + + distance: distance, + distanceToRay: Math.sqrt( rayPointDistanceSq ), + point: intersectPoint, + index: index, + face: null, + object: object + + } ); + + } + +} + +function VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) { + + Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.format = format !== undefined ? format : RGBFormat; + + this.minFilter = minFilter !== undefined ? minFilter : LinearFilter; + this.magFilter = magFilter !== undefined ? magFilter : LinearFilter; + + this.generateMipmaps = false; + + const scope = this; + + function updateVideo() { + + scope.needsUpdate = true; + video.requestVideoFrameCallback( updateVideo ); + + } + + if ( 'requestVideoFrameCallback' in video ) { + + video.requestVideoFrameCallback( updateVideo ); + + } + +} + +VideoTexture.prototype = Object.assign( Object.create( Texture.prototype ), { + + constructor: VideoTexture, + + clone: function () { + + return new this.constructor( this.image ).copy( this ); + + }, + + isVideoTexture: true, + + update: function () { + + const video = this.image; + const hasVideoFrameCallback = 'requestVideoFrameCallback' in video; + + if ( hasVideoFrameCallback === false && video.readyState >= video.HAVE_CURRENT_DATA ) { + + this.needsUpdate = true; + + } + + } + +} ); + +function CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) { + + Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.image = { width: width, height: height }; + this.mipmaps = mipmaps; + + // no flipping for cube textures + // (also flipping doesn't work for compressed textures ) + + this.flipY = false; + + // can't generate mipmaps for compressed textures + // mips must be embedded in DDS files + + this.generateMipmaps = false; + +} + +CompressedTexture.prototype = Object.create( Texture.prototype ); +CompressedTexture.prototype.constructor = CompressedTexture; + +CompressedTexture.prototype.isCompressedTexture = true; + +function CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) { + + Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.needsUpdate = true; + +} + +CanvasTexture.prototype = Object.create( Texture.prototype ); +CanvasTexture.prototype.constructor = CanvasTexture; +CanvasTexture.prototype.isCanvasTexture = true; + +function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) { + + format = format !== undefined ? format : DepthFormat; + + if ( format !== DepthFormat && format !== DepthStencilFormat ) { + + throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' ); + + } + + if ( type === undefined && format === DepthFormat ) type = UnsignedShortType; + if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type; + + Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.image = { width: width, height: height }; + + this.magFilter = magFilter !== undefined ? magFilter : NearestFilter; + this.minFilter = minFilter !== undefined ? minFilter : NearestFilter; + + this.flipY = false; + this.generateMipmaps = false; + +} + +DepthTexture.prototype = Object.create( Texture.prototype ); +DepthTexture.prototype.constructor = DepthTexture; +DepthTexture.prototype.isDepthTexture = true; + +let _geometryId = 0; // Geometry uses even numbers as Id +const _m1$3 = new Matrix4(); +const _obj$1 = new Object3D(); +const _offset$1 = new Vector3(); + +function Geometry() { + + Object.defineProperty( this, 'id', { value: _geometryId += 2 } ); + + this.uuid = MathUtils.generateUUID(); + + this.name = ''; + this.type = 'Geometry'; + + this.vertices = []; + this.colors = []; + this.faces = []; + this.faceVertexUvs = [[]]; + + this.morphTargets = []; + this.morphNormals = []; + + this.skinWeights = []; + this.skinIndices = []; + + this.lineDistances = []; + + this.boundingBox = null; + this.boundingSphere = null; + + // update flags + + this.elementsNeedUpdate = false; + this.verticesNeedUpdate = false; + this.uvsNeedUpdate = false; + this.normalsNeedUpdate = false; + this.colorsNeedUpdate = false; + this.lineDistancesNeedUpdate = false; + this.groupsNeedUpdate = false; + +} + +Geometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), { + + constructor: Geometry, + + isGeometry: true, + + applyMatrix4: function ( matrix ) { + + const normalMatrix = new Matrix3().getNormalMatrix( matrix ); + + for ( let i = 0, il = this.vertices.length; i < il; i ++ ) { + + const vertex = this.vertices[ i ]; + vertex.applyMatrix4( matrix ); + + } + + for ( let i = 0, il = this.faces.length; i < il; i ++ ) { + + const face = this.faces[ i ]; + face.normal.applyMatrix3( normalMatrix ).normalize(); + + for ( let j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) { + + face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize(); + + } + + } + + if ( this.boundingBox !== null ) { + + this.computeBoundingBox(); + + } + + if ( this.boundingSphere !== null ) { + + this.computeBoundingSphere(); + + } + + this.verticesNeedUpdate = true; + this.normalsNeedUpdate = true; + + return this; + + }, + + rotateX: function ( angle ) { + + // rotate geometry around world x-axis + + _m1$3.makeRotationX( angle ); + + this.applyMatrix4( _m1$3 ); + + return this; + + }, + + rotateY: function ( angle ) { + + // rotate geometry around world y-axis + + _m1$3.makeRotationY( angle ); + + this.applyMatrix4( _m1$3 ); + + return this; + + }, + + rotateZ: function ( angle ) { + + // rotate geometry around world z-axis + + _m1$3.makeRotationZ( angle ); + + this.applyMatrix4( _m1$3 ); + + return this; + + }, + + translate: function ( x, y, z ) { + + // translate geometry + + _m1$3.makeTranslation( x, y, z ); + + this.applyMatrix4( _m1$3 ); + + return this; + + }, + + scale: function ( x, y, z ) { + + // scale geometry + + _m1$3.makeScale( x, y, z ); + + this.applyMatrix4( _m1$3 ); + + return this; + + }, + + lookAt: function ( vector ) { + + _obj$1.lookAt( vector ); + + _obj$1.updateMatrix(); + + this.applyMatrix4( _obj$1.matrix ); + + return this; + + }, + + fromBufferGeometry: function ( geometry ) { + + const scope = this; + + const index = geometry.index !== null ? geometry.index : undefined; + const attributes = geometry.attributes; + + if ( attributes.position === undefined ) { + + console.error( 'THREE.Geometry.fromBufferGeometry(): Position attribute required for conversion.' ); + return this; + + } + + const position = attributes.position; + const normal = attributes.normal; + const color = attributes.color; + const uv = attributes.uv; + const uv2 = attributes.uv2; + + if ( uv2 !== undefined ) this.faceVertexUvs[ 1 ] = []; + + for ( let i = 0; i < position.count; i ++ ) { + + scope.vertices.push( new Vector3().fromBufferAttribute( position, i ) ); + + if ( color !== undefined ) { + + scope.colors.push( new Color().fromBufferAttribute( color, i ) ); + + } + + } + + function addFace( a, b, c, materialIndex ) { + + const vertexColors = ( color === undefined ) ? [] : [ + scope.colors[ a ].clone(), + scope.colors[ b ].clone(), + scope.colors[ c ].clone() + ]; + + const vertexNormals = ( normal === undefined ) ? [] : [ + new Vector3().fromBufferAttribute( normal, a ), + new Vector3().fromBufferAttribute( normal, b ), + new Vector3().fromBufferAttribute( normal, c ) + ]; + + const face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex ); + + scope.faces.push( face ); + + if ( uv !== undefined ) { + + scope.faceVertexUvs[ 0 ].push( [ + new Vector2().fromBufferAttribute( uv, a ), + new Vector2().fromBufferAttribute( uv, b ), + new Vector2().fromBufferAttribute( uv, c ) + ] ); + + } + + if ( uv2 !== undefined ) { + + scope.faceVertexUvs[ 1 ].push( [ + new Vector2().fromBufferAttribute( uv2, a ), + new Vector2().fromBufferAttribute( uv2, b ), + new Vector2().fromBufferAttribute( uv2, c ) + ] ); + + } + + } + + const groups = geometry.groups; + + if ( groups.length > 0 ) { + + for ( let i = 0; i < groups.length; i ++ ) { + + const group = groups[ i ]; + + const start = group.start; + const count = group.count; + + for ( let j = start, jl = start + count; j < jl; j += 3 ) { + + if ( index !== undefined ) { + + addFace( index.getX( j ), index.getX( j + 1 ), index.getX( j + 2 ), group.materialIndex ); + + } else { + + addFace( j, j + 1, j + 2, group.materialIndex ); + + } + + } + + } + + } else { + + if ( index !== undefined ) { + + for ( let i = 0; i < index.count; i += 3 ) { + + addFace( index.getX( i ), index.getX( i + 1 ), index.getX( i + 2 ) ); + + } + + } else { + + for ( let i = 0; i < position.count; i += 3 ) { + + addFace( i, i + 1, i + 2 ); + + } + + } + + } + + this.computeFaceNormals(); + + if ( geometry.boundingBox !== null ) { + + this.boundingBox = geometry.boundingBox.clone(); + + } + + if ( geometry.boundingSphere !== null ) { + + this.boundingSphere = geometry.boundingSphere.clone(); + + } + + return this; + + }, + + center: function () { + + this.computeBoundingBox(); + + this.boundingBox.getCenter( _offset$1 ).negate(); + + this.translate( _offset$1.x, _offset$1.y, _offset$1.z ); + + return this; + + }, + + normalize: function () { + + this.computeBoundingSphere(); + + const center = this.boundingSphere.center; + const radius = this.boundingSphere.radius; + + const s = radius === 0 ? 1 : 1.0 / radius; + + const matrix = new Matrix4(); + matrix.set( + s, 0, 0, - s * center.x, + 0, s, 0, - s * center.y, + 0, 0, s, - s * center.z, + 0, 0, 0, 1 + ); + + this.applyMatrix4( matrix ); + + return this; + + }, + + computeFaceNormals: function () { + + const cb = new Vector3(), ab = new Vector3(); + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const face = this.faces[ f ]; + + const vA = this.vertices[ face.a ]; + const vB = this.vertices[ face.b ]; + const vC = this.vertices[ face.c ]; + + cb.subVectors( vC, vB ); + ab.subVectors( vA, vB ); + cb.cross( ab ); + + cb.normalize(); + + face.normal.copy( cb ); + + } + + }, + + computeVertexNormals: function ( areaWeighted = true ) { + + const vertices = new Array( this.vertices.length ); + + for ( let v = 0, vl = this.vertices.length; v < vl; v ++ ) { + + vertices[ v ] = new Vector3(); + + } + + if ( areaWeighted ) { + + // vertex normals weighted by triangle areas + // http://www.iquilezles.org/www/articles/normals/normals.htm + + const cb = new Vector3(), ab = new Vector3(); + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const face = this.faces[ f ]; + + const vA = this.vertices[ face.a ]; + const vB = this.vertices[ face.b ]; + const vC = this.vertices[ face.c ]; + + cb.subVectors( vC, vB ); + ab.subVectors( vA, vB ); + cb.cross( ab ); + + vertices[ face.a ].add( cb ); + vertices[ face.b ].add( cb ); + vertices[ face.c ].add( cb ); + + } + + } else { + + this.computeFaceNormals(); + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const face = this.faces[ f ]; + + vertices[ face.a ].add( face.normal ); + vertices[ face.b ].add( face.normal ); + vertices[ face.c ].add( face.normal ); + + } + + } + + for ( let v = 0, vl = this.vertices.length; v < vl; v ++ ) { + + vertices[ v ].normalize(); + + } + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const face = this.faces[ f ]; + + const vertexNormals = face.vertexNormals; + + if ( vertexNormals.length === 3 ) { + + vertexNormals[ 0 ].copy( vertices[ face.a ] ); + vertexNormals[ 1 ].copy( vertices[ face.b ] ); + vertexNormals[ 2 ].copy( vertices[ face.c ] ); + + } else { + + vertexNormals[ 0 ] = vertices[ face.a ].clone(); + vertexNormals[ 1 ] = vertices[ face.b ].clone(); + vertexNormals[ 2 ] = vertices[ face.c ].clone(); + + } + + } + + if ( this.faces.length > 0 ) { + + this.normalsNeedUpdate = true; + + } + + }, + + computeFlatVertexNormals: function () { + + this.computeFaceNormals(); + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const face = this.faces[ f ]; + + const vertexNormals = face.vertexNormals; + + if ( vertexNormals.length === 3 ) { + + vertexNormals[ 0 ].copy( face.normal ); + vertexNormals[ 1 ].copy( face.normal ); + vertexNormals[ 2 ].copy( face.normal ); + + } else { + + vertexNormals[ 0 ] = face.normal.clone(); + vertexNormals[ 1 ] = face.normal.clone(); + vertexNormals[ 2 ] = face.normal.clone(); + + } + + } + + if ( this.faces.length > 0 ) { + + this.normalsNeedUpdate = true; + + } + + }, + + computeMorphNormals: function () { + + // save original normals + // - create temp variables on first access + // otherwise just copy (for faster repeated calls) + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const face = this.faces[ f ]; + + if ( ! face.__originalFaceNormal ) { + + face.__originalFaceNormal = face.normal.clone(); + + } else { + + face.__originalFaceNormal.copy( face.normal ); + + } + + if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = []; + + for ( let i = 0, il = face.vertexNormals.length; i < il; i ++ ) { + + if ( ! face.__originalVertexNormals[ i ] ) { + + face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone(); + + } else { + + face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] ); + + } + + } + + } + + // use temp geometry to compute face and vertex normals for each morph + + const tmpGeo = new Geometry(); + tmpGeo.faces = this.faces; + + for ( let i = 0, il = this.morphTargets.length; i < il; i ++ ) { + + // create on first access + + if ( ! this.morphNormals[ i ] ) { + + this.morphNormals[ i ] = {}; + this.morphNormals[ i ].faceNormals = []; + this.morphNormals[ i ].vertexNormals = []; + + const dstNormalsFace = this.morphNormals[ i ].faceNormals; + const dstNormalsVertex = this.morphNormals[ i ].vertexNormals; + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const faceNormal = new Vector3(); + const vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() }; + + dstNormalsFace.push( faceNormal ); + dstNormalsVertex.push( vertexNormals ); + + } + + } + + const morphNormals = this.morphNormals[ i ]; + + // set vertices to morph target + + tmpGeo.vertices = this.morphTargets[ i ].vertices; + + // compute morph normals + + tmpGeo.computeFaceNormals(); + tmpGeo.computeVertexNormals(); + + // store morph normals + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const face = this.faces[ f ]; + + const faceNormal = morphNormals.faceNormals[ f ]; + const vertexNormals = morphNormals.vertexNormals[ f ]; + + faceNormal.copy( face.normal ); + + vertexNormals.a.copy( face.vertexNormals[ 0 ] ); + vertexNormals.b.copy( face.vertexNormals[ 1 ] ); + vertexNormals.c.copy( face.vertexNormals[ 2 ] ); + + } + + } + + // restore original normals + + for ( let f = 0, fl = this.faces.length; f < fl; f ++ ) { + + const face = this.faces[ f ]; + + face.normal = face.__originalFaceNormal; + face.vertexNormals = face.__originalVertexNormals; + + } + + }, + + computeBoundingBox: function () { + + if ( this.boundingBox === null ) { + + this.boundingBox = new Box3(); + + } + + this.boundingBox.setFromPoints( this.vertices ); + + }, + + computeBoundingSphere: function () { + + if ( this.boundingSphere === null ) { + + this.boundingSphere = new Sphere(); + + } + + this.boundingSphere.setFromPoints( this.vertices ); + + }, + + merge: function ( geometry, matrix, materialIndexOffset = 0 ) { + + if ( ! ( geometry && geometry.isGeometry ) ) { + + console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry ); + return; + + } + + let normalMatrix; + const vertexOffset = this.vertices.length, + vertices1 = this.vertices, + vertices2 = geometry.vertices, + faces1 = this.faces, + faces2 = geometry.faces, + colors1 = this.colors, + colors2 = geometry.colors; + + if ( matrix !== undefined ) { + + normalMatrix = new Matrix3().getNormalMatrix( matrix ); + + } + + // vertices + + for ( let i = 0, il = vertices2.length; i < il; i ++ ) { + + const vertex = vertices2[ i ]; + + const vertexCopy = vertex.clone(); + + if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix ); + + vertices1.push( vertexCopy ); + + } + + // colors + + for ( let i = 0, il = colors2.length; i < il; i ++ ) { + + colors1.push( colors2[ i ].clone() ); + + } + + // faces + + for ( let i = 0, il = faces2.length; i < il; i ++ ) { + + const face = faces2[ i ]; + let normal, color; + const faceVertexNormals = face.vertexNormals, + faceVertexColors = face.vertexColors; + + const faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset ); + faceCopy.normal.copy( face.normal ); + + if ( normalMatrix !== undefined ) { + + faceCopy.normal.applyMatrix3( normalMatrix ).normalize(); + + } + + for ( let j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) { + + normal = faceVertexNormals[ j ].clone(); + + if ( normalMatrix !== undefined ) { + + normal.applyMatrix3( normalMatrix ).normalize(); + + } + + faceCopy.vertexNormals.push( normal ); + + } + + faceCopy.color.copy( face.color ); + + for ( let j = 0, jl = faceVertexColors.length; j < jl; j ++ ) { + + color = faceVertexColors[ j ]; + faceCopy.vertexColors.push( color.clone() ); + + } + + faceCopy.materialIndex = face.materialIndex + materialIndexOffset; + + faces1.push( faceCopy ); + + } + + // uvs + + for ( let i = 0, il = geometry.faceVertexUvs.length; i < il; i ++ ) { + + const faceVertexUvs2 = geometry.faceVertexUvs[ i ]; + + if ( this.faceVertexUvs[ i ] === undefined ) this.faceVertexUvs[ i ] = []; + + for ( let j = 0, jl = faceVertexUvs2.length; j < jl; j ++ ) { + + const uvs2 = faceVertexUvs2[ j ], uvsCopy = []; + + for ( let k = 0, kl = uvs2.length; k < kl; k ++ ) { + + uvsCopy.push( uvs2[ k ].clone() ); + + } + + this.faceVertexUvs[ i ].push( uvsCopy ); + + } + + } + + }, + + mergeMesh: function ( mesh ) { + + if ( ! ( mesh && mesh.isMesh ) ) { + + console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh ); + return; + + } + + if ( mesh.matrixAutoUpdate ) mesh.updateMatrix(); + + this.merge( mesh.geometry, mesh.matrix ); + + }, + + /* + * Checks for duplicate vertices with hashmap. + * Duplicated vertices are removed + * and faces' vertices are updated. + */ + + mergeVertices: function ( precisionPoints = 4 ) { + + const verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique) + const unique = [], changes = []; + + const precision = Math.pow( 10, precisionPoints ); + + for ( let i = 0, il = this.vertices.length; i < il; i ++ ) { + + const v = this.vertices[ i ]; + const key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision ); + + if ( verticesMap[ key ] === undefined ) { + + verticesMap[ key ] = i; + unique.push( this.vertices[ i ] ); + changes[ i ] = unique.length - 1; + + } else { + + //console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]); + changes[ i ] = changes[ verticesMap[ key ] ]; + + } + + } + + + // if faces are completely degenerate after merging vertices, we + // have to remove them from the geometry. + const faceIndicesToRemove = []; + + for ( let i = 0, il = this.faces.length; i < il; i ++ ) { + + const face = this.faces[ i ]; + + face.a = changes[ face.a ]; + face.b = changes[ face.b ]; + face.c = changes[ face.c ]; + + const indices = [ face.a, face.b, face.c ]; + + // if any duplicate vertices are found in a Face3 + // we have to remove the face as nothing can be saved + for ( let n = 0; n < 3; n ++ ) { + + if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) { + + faceIndicesToRemove.push( i ); + break; + + } + + } + + } + + for ( let i = faceIndicesToRemove.length - 1; i >= 0; i -- ) { + + const idx = faceIndicesToRemove[ i ]; + + this.faces.splice( idx, 1 ); + + for ( let j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) { + + this.faceVertexUvs[ j ].splice( idx, 1 ); + + } + + } + + // Use unique set of vertices + + const diff = this.vertices.length - unique.length; + this.vertices = unique; + return diff; + + }, + + setFromPoints: function ( points ) { + + this.vertices = []; + + for ( let i = 0, l = points.length; i < l; i ++ ) { + + const point = points[ i ]; + this.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) ); + + } + + return this; + + }, + + sortFacesByMaterialIndex: function () { + + const faces = this.faces; + const length = faces.length; + + // tag faces + + for ( let i = 0; i < length; i ++ ) { + + faces[ i ]._id = i; + + } + + // sort faces + + function materialIndexSort( a, b ) { + + return a.materialIndex - b.materialIndex; + + } + + faces.sort( materialIndexSort ); + + // sort uvs + + const uvs1 = this.faceVertexUvs[ 0 ]; + const uvs2 = this.faceVertexUvs[ 1 ]; + + let newUvs1, newUvs2; + + if ( uvs1 && uvs1.length === length ) newUvs1 = []; + if ( uvs2 && uvs2.length === length ) newUvs2 = []; + + for ( let i = 0; i < length; i ++ ) { + + const id = faces[ i ]._id; + + if ( newUvs1 ) newUvs1.push( uvs1[ id ] ); + if ( newUvs2 ) newUvs2.push( uvs2[ id ] ); + + } + + if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1; + if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2; + + }, + + toJSON: function () { + + const data = { + metadata: { + version: 4.5, + type: 'Geometry', + generator: 'Geometry.toJSON' + } + }; + + // standard Geometry serialization + + data.uuid = this.uuid; + data.type = this.type; + if ( this.name !== '' ) data.name = this.name; + + if ( this.parameters !== undefined ) { + + const parameters = this.parameters; + + for ( const key in parameters ) { + + if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ]; + + } + + return data; + + } + + const vertices = []; + + for ( let i = 0; i < this.vertices.length; i ++ ) { + + const vertex = this.vertices[ i ]; + vertices.push( vertex.x, vertex.y, vertex.z ); + + } + + const faces = []; + const normals = []; + const normalsHash = {}; + const colors = []; + const colorsHash = {}; + const uvs = []; + const uvsHash = {}; + + for ( let i = 0; i < this.faces.length; i ++ ) { + + const face = this.faces[ i ]; + + const hasMaterial = true; + const hasFaceUv = false; // deprecated + const hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined; + const hasFaceNormal = face.normal.length() > 0; + const hasFaceVertexNormal = face.vertexNormals.length > 0; + const hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1; + const hasFaceVertexColor = face.vertexColors.length > 0; + + let faceType = 0; + + faceType = setBit( faceType, 0, 0 ); // isQuad + faceType = setBit( faceType, 1, hasMaterial ); + faceType = setBit( faceType, 2, hasFaceUv ); + faceType = setBit( faceType, 3, hasFaceVertexUv ); + faceType = setBit( faceType, 4, hasFaceNormal ); + faceType = setBit( faceType, 5, hasFaceVertexNormal ); + faceType = setBit( faceType, 6, hasFaceColor ); + faceType = setBit( faceType, 7, hasFaceVertexColor ); + + faces.push( faceType ); + faces.push( face.a, face.b, face.c ); + faces.push( face.materialIndex ); + + if ( hasFaceVertexUv ) { + + const faceVertexUvs = this.faceVertexUvs[ 0 ][ i ]; + + faces.push( + getUvIndex( faceVertexUvs[ 0 ] ), + getUvIndex( faceVertexUvs[ 1 ] ), + getUvIndex( faceVertexUvs[ 2 ] ) + ); + + } + + if ( hasFaceNormal ) { + + faces.push( getNormalIndex( face.normal ) ); + + } + + if ( hasFaceVertexNormal ) { + + const vertexNormals = face.vertexNormals; + + faces.push( + getNormalIndex( vertexNormals[ 0 ] ), + getNormalIndex( vertexNormals[ 1 ] ), + getNormalIndex( vertexNormals[ 2 ] ) + ); + + } + + if ( hasFaceColor ) { + + faces.push( getColorIndex( face.color ) ); + + } + + if ( hasFaceVertexColor ) { + + const vertexColors = face.vertexColors; + + faces.push( + getColorIndex( vertexColors[ 0 ] ), + getColorIndex( vertexColors[ 1 ] ), + getColorIndex( vertexColors[ 2 ] ) + ); + + } + + } + + function setBit( value, position, enabled ) { + + return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) ); + + } + + function getNormalIndex( normal ) { + + const hash = normal.x.toString() + normal.y.toString() + normal.z.toString(); + + if ( normalsHash[ hash ] !== undefined ) { + + return normalsHash[ hash ]; + + } + + normalsHash[ hash ] = normals.length / 3; + normals.push( normal.x, normal.y, normal.z ); + + return normalsHash[ hash ]; + + } + + function getColorIndex( color ) { + + const hash = color.r.toString() + color.g.toString() + color.b.toString(); + + if ( colorsHash[ hash ] !== undefined ) { + + return colorsHash[ hash ]; + + } + + colorsHash[ hash ] = colors.length; + colors.push( color.getHex() ); + + return colorsHash[ hash ]; + + } + + function getUvIndex( uv ) { + + const hash = uv.x.toString() + uv.y.toString(); + + if ( uvsHash[ hash ] !== undefined ) { + + return uvsHash[ hash ]; + + } + + uvsHash[ hash ] = uvs.length / 2; + uvs.push( uv.x, uv.y ); + + return uvsHash[ hash ]; + + } + + data.data = {}; + + data.data.vertices = vertices; + data.data.normals = normals; + if ( colors.length > 0 ) data.data.colors = colors; + if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility + data.data.faces = faces; + + return data; + + }, + + clone: function () { + + /* + // Handle primitives + + const parameters = this.parameters; + + if ( parameters !== undefined ) { + + const values = []; + + for ( const key in parameters ) { + + values.push( parameters[ key ] ); + + } + + const geometry = Object.create( this.constructor.prototype ); + this.constructor.apply( geometry, values ); + return geometry; + + } + + return new this.constructor().copy( this ); + */ + + return new Geometry().copy( this ); + + }, + + copy: function ( source ) { + + // reset + + this.vertices = []; + this.colors = []; + this.faces = []; + this.faceVertexUvs = [[]]; + this.morphTargets = []; + this.morphNormals = []; + this.skinWeights = []; + this.skinIndices = []; + this.lineDistances = []; + this.boundingBox = null; + this.boundingSphere = null; + + // name + + this.name = source.name; + + // vertices + + const vertices = source.vertices; + + for ( let i = 0, il = vertices.length; i < il; i ++ ) { + + this.vertices.push( vertices[ i ].clone() ); + + } + + // colors + + const colors = source.colors; + + for ( let i = 0, il = colors.length; i < il; i ++ ) { + + this.colors.push( colors[ i ].clone() ); + + } + + // faces + + const faces = source.faces; + + for ( let i = 0, il = faces.length; i < il; i ++ ) { + + this.faces.push( faces[ i ].clone() ); + + } + + // face vertex uvs + + for ( let i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) { + + const faceVertexUvs = source.faceVertexUvs[ i ]; + + if ( this.faceVertexUvs[ i ] === undefined ) { + + this.faceVertexUvs[ i ] = []; + + } + + for ( let j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) { + + const uvs = faceVertexUvs[ j ], uvsCopy = []; + + for ( let k = 0, kl = uvs.length; k < kl; k ++ ) { + + const uv = uvs[ k ]; + + uvsCopy.push( uv.clone() ); + + } + + this.faceVertexUvs[ i ].push( uvsCopy ); + + } + + } + + // morph targets + + const morphTargets = source.morphTargets; + + for ( let i = 0, il = morphTargets.length; i < il; i ++ ) { + + const morphTarget = {}; + morphTarget.name = morphTargets[ i ].name; + + // vertices + + if ( morphTargets[ i ].vertices !== undefined ) { + + morphTarget.vertices = []; + + for ( let j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) { + + morphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() ); + + } + + } + + // normals + + if ( morphTargets[ i ].normals !== undefined ) { + + morphTarget.normals = []; + + for ( let j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) { + + morphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() ); + + } + + } + + this.morphTargets.push( morphTarget ); + + } + + // morph normals + + const morphNormals = source.morphNormals; + + for ( let i = 0, il = morphNormals.length; i < il; i ++ ) { + + const morphNormal = {}; + + // vertex normals + + if ( morphNormals[ i ].vertexNormals !== undefined ) { + + morphNormal.vertexNormals = []; + + for ( let j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) { + + const srcVertexNormal = morphNormals[ i ].vertexNormals[ j ]; + const destVertexNormal = {}; + + destVertexNormal.a = srcVertexNormal.a.clone(); + destVertexNormal.b = srcVertexNormal.b.clone(); + destVertexNormal.c = srcVertexNormal.c.clone(); + + morphNormal.vertexNormals.push( destVertexNormal ); + + } + + } + + // face normals + + if ( morphNormals[ i ].faceNormals !== undefined ) { + + morphNormal.faceNormals = []; + + for ( let j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) { + + morphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() ); + + } + + } + + this.morphNormals.push( morphNormal ); + + } + + // skin weights + + const skinWeights = source.skinWeights; + + for ( let i = 0, il = skinWeights.length; i < il; i ++ ) { + + this.skinWeights.push( skinWeights[ i ].clone() ); + + } + + // skin indices + + const skinIndices = source.skinIndices; + + for ( let i = 0, il = skinIndices.length; i < il; i ++ ) { + + this.skinIndices.push( skinIndices[ i ].clone() ); + + } + + // line distances + + const lineDistances = source.lineDistances; + + for ( let i = 0, il = lineDistances.length; i < il; i ++ ) { + + this.lineDistances.push( lineDistances[ i ] ); + + } + + // bounding box + + const boundingBox = source.boundingBox; + + if ( boundingBox !== null ) { + + this.boundingBox = boundingBox.clone(); + + } + + // bounding sphere + + const boundingSphere = source.boundingSphere; + + if ( boundingSphere !== null ) { + + this.boundingSphere = boundingSphere.clone(); + + } + + // update flags + + this.elementsNeedUpdate = source.elementsNeedUpdate; + this.verticesNeedUpdate = source.verticesNeedUpdate; + this.uvsNeedUpdate = source.uvsNeedUpdate; + this.normalsNeedUpdate = source.normalsNeedUpdate; + this.colorsNeedUpdate = source.colorsNeedUpdate; + this.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate; + this.groupsNeedUpdate = source.groupsNeedUpdate; + + return this; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + +} ); + +class BoxGeometry extends Geometry { + + constructor( width, height, depth, widthSegments, heightSegments, depthSegments ) { + + super(); + + this.type = 'BoxGeometry'; + + this.parameters = { + width: width, + height: height, + depth: depth, + widthSegments: widthSegments, + heightSegments: heightSegments, + depthSegments: depthSegments + }; + + this.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) ); + this.mergeVertices(); + + } + +} + +class CircleBufferGeometry extends BufferGeometry { + + constructor( radius = 1, segments = 8, thetaStart = 0, thetaLength = Math.PI * 2 ) { + + super(); + + this.type = 'CircleBufferGeometry'; + + this.parameters = { + radius: radius, + segments: segments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + segments = Math.max( 3, segments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + const vertex = new Vector3(); + const uv = new Vector2(); + + // center point + + vertices.push( 0, 0, 0 ); + normals.push( 0, 0, 1 ); + uvs.push( 0.5, 0.5 ); + + for ( let s = 0, i = 3; s <= segments; s ++, i += 3 ) { + + const segment = thetaStart + s / segments * thetaLength; + + // vertex + + vertex.x = radius * Math.cos( segment ); + vertex.y = radius * Math.sin( segment ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normals.push( 0, 0, 1 ); + + // uvs + + uv.x = ( vertices[ i ] / radius + 1 ) / 2; + uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2; + + uvs.push( uv.x, uv.y ); + + } + + // indices + + for ( let i = 1; i <= segments; i ++ ) { + + indices.push( i, i + 1, 0 ); + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + +} + +class CircleGeometry extends Geometry { + + constructor( radius, segments, thetaStart, thetaLength ) { + + super(); + this.type = 'CircleGeometry'; + + this.parameters = { + radius: radius, + segments: segments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + this.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) ); + this.mergeVertices(); + + } + +} + +class CylinderBufferGeometry extends BufferGeometry { + + constructor( radiusTop = 1, radiusBottom = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) { + + super(); + this.type = 'CylinderBufferGeometry'; + + this.parameters = { + radiusTop: radiusTop, + radiusBottom: radiusBottom, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + const scope = this; + + radialSegments = Math.floor( radialSegments ); + heightSegments = Math.floor( heightSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + let index = 0; + const indexArray = []; + const halfHeight = height / 2; + let groupStart = 0; + + // generate geometry + + generateTorso(); + + if ( openEnded === false ) { + + if ( radiusTop > 0 ) generateCap( true ); + if ( radiusBottom > 0 ) generateCap( false ); + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + function generateTorso() { + + const normal = new Vector3(); + const vertex = new Vector3(); + + let groupCount = 0; + + // this will be used to calculate the normal + const slope = ( radiusBottom - radiusTop ) / height; + + // generate vertices, normals and uvs + + for ( let y = 0; y <= heightSegments; y ++ ) { + + const indexRow = []; + + const v = y / heightSegments; + + // calculate the radius of the current row + + const radius = v * ( radiusBottom - radiusTop ) + radiusTop; + + for ( let x = 0; x <= radialSegments; x ++ ) { + + const u = x / radialSegments; + + const theta = u * thetaLength + thetaStart; + + const sinTheta = Math.sin( theta ); + const cosTheta = Math.cos( theta ); + + // vertex + + vertex.x = radius * sinTheta; + vertex.y = - v * height + halfHeight; + vertex.z = radius * cosTheta; + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normal.set( sinTheta, slope, cosTheta ).normalize(); + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( u, 1 - v ); + + // save index of vertex in respective row + + indexRow.push( index ++ ); + + } + + // now save vertices of the row in our index array + + indexArray.push( indexRow ); + + } + + // generate indices + + for ( let x = 0; x < radialSegments; x ++ ) { + + for ( let y = 0; y < heightSegments; y ++ ) { + + // we use the index array to access the correct indices + + const a = indexArray[ y ][ x ]; + const b = indexArray[ y + 1 ][ x ]; + const c = indexArray[ y + 1 ][ x + 1 ]; + const d = indexArray[ y ][ x + 1 ]; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + // update group counter + + groupCount += 6; + + } + + } + + // add a group to the geometry. this will ensure multi material support + + scope.addGroup( groupStart, groupCount, 0 ); + + // calculate new start value for groups + + groupStart += groupCount; + + } + + function generateCap( top ) { + + // save the index of the first center vertex + const centerIndexStart = index; + + const uv = new Vector2(); + const vertex = new Vector3(); + + let groupCount = 0; + + const radius = ( top === true ) ? radiusTop : radiusBottom; + const sign = ( top === true ) ? 1 : - 1; + + // first we generate the center vertex data of the cap. + // because the geometry needs one set of uvs per face, + // we must generate a center vertex per face/segment + + for ( let x = 1; x <= radialSegments; x ++ ) { + + // vertex + + vertices.push( 0, halfHeight * sign, 0 ); + + // normal + + normals.push( 0, sign, 0 ); + + // uv + + uvs.push( 0.5, 0.5 ); + + // increase index + + index ++; + + } + + // save the index of the last center vertex + const centerIndexEnd = index; + + // now we generate the surrounding vertices, normals and uvs + + for ( let x = 0; x <= radialSegments; x ++ ) { + + const u = x / radialSegments; + const theta = u * thetaLength + thetaStart; + + const cosTheta = Math.cos( theta ); + const sinTheta = Math.sin( theta ); + + // vertex + + vertex.x = radius * sinTheta; + vertex.y = halfHeight * sign; + vertex.z = radius * cosTheta; + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normals.push( 0, sign, 0 ); + + // uv + + uv.x = ( cosTheta * 0.5 ) + 0.5; + uv.y = ( sinTheta * 0.5 * sign ) + 0.5; + uvs.push( uv.x, uv.y ); + + // increase index + + index ++; + + } + + // generate indices + + for ( let x = 0; x < radialSegments; x ++ ) { + + const c = centerIndexStart + x; + const i = centerIndexEnd + x; + + if ( top === true ) { + + // face top + + indices.push( i, i + 1, c ); + + } else { + + // face bottom + + indices.push( i + 1, i, c ); + + } + + groupCount += 3; + + } + + // add a group to the geometry. this will ensure multi material support + + scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 ); + + // calculate new start value for groups + + groupStart += groupCount; + + } + + } + +} + +class CylinderGeometry extends Geometry { + + constructor( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) { + + super(); + this.type = 'CylinderGeometry'; + + this.parameters = { + radiusTop: radiusTop, + radiusBottom: radiusBottom, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + this.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) ); + this.mergeVertices(); + + } + +} + +class ConeGeometry extends CylinderGeometry { + + constructor( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) { + + super( 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ); + this.type = 'ConeGeometry'; + + this.parameters = { + radius: radius, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + } + +} + +class ConeBufferGeometry extends CylinderBufferGeometry { + + constructor( radius = 1, height = 1, radialSegments = 8, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) { + + super( 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ); + + this.type = 'ConeBufferGeometry'; + + this.parameters = { + radius: radius, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + } + +} + +class PolyhedronBufferGeometry extends BufferGeometry { + + constructor( vertices, indices, radius = 1, detail = 0 ) { + + super(); + + this.type = 'PolyhedronBufferGeometry'; + + this.parameters = { + vertices: vertices, + indices: indices, + radius: radius, + detail: detail + }; + + // default buffer data + + const vertexBuffer = []; + const uvBuffer = []; + + // the subdivision creates the vertex buffer data + + subdivide( detail ); + + // all vertices should lie on a conceptual sphere with a given radius + + applyRadius( radius ); + + // finally, create the uv data + + generateUVs(); + + // build non-indexed geometry + + this.setAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) ); + + if ( detail === 0 ) { + + this.computeVertexNormals(); // flat normals + + } else { + + this.normalizeNormals(); // smooth normals + + } + + // helper functions + + function subdivide( detail ) { + + const a = new Vector3(); + const b = new Vector3(); + const c = new Vector3(); + + // iterate over all faces and apply a subdivison with the given detail value + + for ( let i = 0; i < indices.length; i += 3 ) { + + // get the vertices of the face + + getVertexByIndex( indices[ i + 0 ], a ); + getVertexByIndex( indices[ i + 1 ], b ); + getVertexByIndex( indices[ i + 2 ], c ); + + // perform subdivision + + subdivideFace( a, b, c, detail ); + + } + + } + + function subdivideFace( a, b, c, detail ) { + + const cols = detail + 1; + + // we use this multidimensional array as a data structure for creating the subdivision + + const v = []; + + // construct all of the vertices for this subdivision + + for ( let i = 0; i <= cols; i ++ ) { + + v[ i ] = []; + + const aj = a.clone().lerp( c, i / cols ); + const bj = b.clone().lerp( c, i / cols ); + + const rows = cols - i; + + for ( let j = 0; j <= rows; j ++ ) { + + if ( j === 0 && i === cols ) { + + v[ i ][ j ] = aj; + + } else { + + v[ i ][ j ] = aj.clone().lerp( bj, j / rows ); + + } + + } + + } + + // construct all of the faces + + for ( let i = 0; i < cols; i ++ ) { + + for ( let j = 0; j < 2 * ( cols - i ) - 1; j ++ ) { + + const k = Math.floor( j / 2 ); + + if ( j % 2 === 0 ) { + + pushVertex( v[ i ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k ] ); + pushVertex( v[ i ][ k ] ); + + } else { + + pushVertex( v[ i ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k ] ); + + } + + } + + } + + } + + function applyRadius( radius ) { + + const vertex = new Vector3(); + + // iterate over the entire buffer and apply the radius to each vertex + + for ( let i = 0; i < vertexBuffer.length; i += 3 ) { + + vertex.x = vertexBuffer[ i + 0 ]; + vertex.y = vertexBuffer[ i + 1 ]; + vertex.z = vertexBuffer[ i + 2 ]; + + vertex.normalize().multiplyScalar( radius ); + + vertexBuffer[ i + 0 ] = vertex.x; + vertexBuffer[ i + 1 ] = vertex.y; + vertexBuffer[ i + 2 ] = vertex.z; + + } + + } + + function generateUVs() { + + const vertex = new Vector3(); + + for ( let i = 0; i < vertexBuffer.length; i += 3 ) { + + vertex.x = vertexBuffer[ i + 0 ]; + vertex.y = vertexBuffer[ i + 1 ]; + vertex.z = vertexBuffer[ i + 2 ]; + + const u = azimuth( vertex ) / 2 / Math.PI + 0.5; + const v = inclination( vertex ) / Math.PI + 0.5; + uvBuffer.push( u, 1 - v ); + + } + + correctUVs(); + + correctSeam(); + + } + + function correctSeam() { + + // handle case when face straddles the seam, see #3269 + + for ( let i = 0; i < uvBuffer.length; i += 6 ) { + + // uv data of a single face + + const x0 = uvBuffer[ i + 0 ]; + const x1 = uvBuffer[ i + 2 ]; + const x2 = uvBuffer[ i + 4 ]; + + const max = Math.max( x0, x1, x2 ); + const min = Math.min( x0, x1, x2 ); + + // 0.9 is somewhat arbitrary + + if ( max > 0.9 && min < 0.1 ) { + + if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1; + if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1; + if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1; + + } + + } + + } + + function pushVertex( vertex ) { + + vertexBuffer.push( vertex.x, vertex.y, vertex.z ); + + } + + function getVertexByIndex( index, vertex ) { + + const stride = index * 3; + + vertex.x = vertices[ stride + 0 ]; + vertex.y = vertices[ stride + 1 ]; + vertex.z = vertices[ stride + 2 ]; + + } + + function correctUVs() { + + const a = new Vector3(); + const b = new Vector3(); + const c = new Vector3(); + + const centroid = new Vector3(); + + const uvA = new Vector2(); + const uvB = new Vector2(); + const uvC = new Vector2(); + + for ( let i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) { + + a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] ); + b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] ); + c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] ); + + uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] ); + uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] ); + uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] ); + + centroid.copy( a ).add( b ).add( c ).divideScalar( 3 ); + + const azi = azimuth( centroid ); + + correctUV( uvA, j + 0, a, azi ); + correctUV( uvB, j + 2, b, azi ); + correctUV( uvC, j + 4, c, azi ); + + } + + } + + function correctUV( uv, stride, vector, azimuth ) { + + if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) { + + uvBuffer[ stride ] = uv.x - 1; + + } + + if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) { + + uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5; + + } + + } + + // Angle around the Y axis, counter-clockwise when looking from above. + + function azimuth( vector ) { + + return Math.atan2( vector.z, - vector.x ); + + } + + + // Angle above the XZ plane. + + function inclination( vector ) { + + return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) ); + + } + + } + +} + +class DodecahedronBufferGeometry extends PolyhedronBufferGeometry { + + constructor( radius = 1, detail = 0 ) { + + const t = ( 1 + Math.sqrt( 5 ) ) / 2; + const r = 1 / t; + + const vertices = [ + + // (±1, ±1, ±1) + - 1, - 1, - 1, - 1, - 1, 1, + - 1, 1, - 1, - 1, 1, 1, + 1, - 1, - 1, 1, - 1, 1, + 1, 1, - 1, 1, 1, 1, + + // (0, ±1/φ, ±φ) + 0, - r, - t, 0, - r, t, + 0, r, - t, 0, r, t, + + // (±1/φ, ±φ, 0) + - r, - t, 0, - r, t, 0, + r, - t, 0, r, t, 0, + + // (±φ, 0, ±1/φ) + - t, 0, - r, t, 0, - r, + - t, 0, r, t, 0, r + ]; + + const indices = [ + 3, 11, 7, 3, 7, 15, 3, 15, 13, + 7, 19, 17, 7, 17, 6, 7, 6, 15, + 17, 4, 8, 17, 8, 10, 17, 10, 6, + 8, 0, 16, 8, 16, 2, 8, 2, 10, + 0, 12, 1, 0, 1, 18, 0, 18, 16, + 6, 10, 2, 6, 2, 13, 6, 13, 15, + 2, 16, 18, 2, 18, 3, 2, 3, 13, + 18, 1, 9, 18, 9, 11, 18, 11, 3, + 4, 14, 12, 4, 12, 0, 4, 0, 8, + 11, 9, 5, 11, 5, 19, 11, 19, 7, + 19, 5, 14, 19, 14, 4, 19, 4, 17, + 1, 12, 14, 1, 14, 5, 1, 5, 9 + ]; + + super( vertices, indices, radius, detail ); + + this.type = 'DodecahedronBufferGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + +} + +class DodecahedronGeometry extends Geometry { + + constructor( radius, detail ) { + + super(); + this.type = 'DodecahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) ); + this.mergeVertices(); + + } + +} + +const _v0$2 = new Vector3(); +const _v1$5 = new Vector3(); +const _normal$1 = new Vector3(); +const _triangle = new Triangle(); + +class EdgesGeometry extends BufferGeometry { + + constructor( geometry, thresholdAngle ) { + + super(); + + this.type = 'EdgesGeometry'; + + this.parameters = { + thresholdAngle: thresholdAngle + }; + + thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1; + + if ( geometry.isGeometry ) { + + geometry = new BufferGeometry().fromGeometry( geometry ); + + } + + const precisionPoints = 4; + const precision = Math.pow( 10, precisionPoints ); + const thresholdDot = Math.cos( MathUtils.DEG2RAD * thresholdAngle ); + + const indexAttr = geometry.getIndex(); + const positionAttr = geometry.getAttribute( 'position' ); + const indexCount = indexAttr ? indexAttr.count : positionAttr.count; + + const indexArr = [ 0, 0, 0 ]; + const vertKeys = [ 'a', 'b', 'c' ]; + const hashes = new Array( 3 ); + + const edgeData = {}; + const vertices = []; + for ( let i = 0; i < indexCount; i += 3 ) { + + if ( indexAttr ) { + + indexArr[ 0 ] = indexAttr.getX( i ); + indexArr[ 1 ] = indexAttr.getX( i + 1 ); + indexArr[ 2 ] = indexAttr.getX( i + 2 ); + + } else { + + indexArr[ 0 ] = i; + indexArr[ 1 ] = i + 1; + indexArr[ 2 ] = i + 2; + + } + + const { a, b, c } = _triangle; + a.fromBufferAttribute( positionAttr, indexArr[ 0 ] ); + b.fromBufferAttribute( positionAttr, indexArr[ 1 ] ); + c.fromBufferAttribute( positionAttr, indexArr[ 2 ] ); + _triangle.getNormal( _normal$1 ); + + // create hashes for the edge from the vertices + hashes[ 0 ] = `${ Math.round( a.x * precision ) },${ Math.round( a.y * precision ) },${ Math.round( a.z * precision ) }`; + hashes[ 1 ] = `${ Math.round( b.x * precision ) },${ Math.round( b.y * precision ) },${ Math.round( b.z * precision ) }`; + hashes[ 2 ] = `${ Math.round( c.x * precision ) },${ Math.round( c.y * precision ) },${ Math.round( c.z * precision ) }`; + + // skip degenerate triangles + if ( hashes[ 0 ] === hashes[ 1 ] || hashes[ 1 ] === hashes[ 2 ] || hashes[ 2 ] === hashes[ 0 ] ) { + + continue; + + } + + // iterate over every edge + for ( let j = 0; j < 3; j ++ ) { + + // get the first and next vertex making up the edge + const jNext = ( j + 1 ) % 3; + const vecHash0 = hashes[ j ]; + const vecHash1 = hashes[ jNext ]; + const v0 = _triangle[ vertKeys[ j ] ]; + const v1 = _triangle[ vertKeys[ jNext ] ]; + + const hash = `${ vecHash0 }_${ vecHash1 }`; + const reverseHash = `${ vecHash1 }_${ vecHash0 }`; + + if ( reverseHash in edgeData && edgeData[ reverseHash ] ) { + + // if we found a sibling edge add it into the vertex array if + // it meets the angle threshold and delete the edge from the map. + if ( _normal$1.dot( edgeData[ reverseHash ].normal ) <= thresholdDot ) { + + vertices.push( v0.x, v0.y, v0.z ); + vertices.push( v1.x, v1.y, v1.z ); + + } + + edgeData[ reverseHash ] = null; + + } else if ( ! ( hash in edgeData ) ) { + + // if we've already got an edge here then skip adding a new one + edgeData[ hash ] = { + + index0: indexArr[ j ], + index1: indexArr[ jNext ], + normal: _normal$1.clone(), + + }; + + } + + } + + } + + // iterate over all remaining, unmatched edges and add them to the vertex array + for ( const key in edgeData ) { + + if ( edgeData[ key ] ) { + + const { index0, index1 } = edgeData[ key ]; + _v0$2.fromBufferAttribute( positionAttr, index0 ); + _v1$5.fromBufferAttribute( positionAttr, index1 ); + + vertices.push( _v0$2.x, _v0$2.y, _v0$2.z ); + vertices.push( _v1$5.x, _v1$5.y, _v1$5.z ); + + } + + } + + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + + } + +} + +/** + * Port from https://github.com/mapbox/earcut (v2.2.2) + */ + +const Earcut = { + + triangulate: function ( data, holeIndices, dim ) { + + dim = dim || 2; + + const hasHoles = holeIndices && holeIndices.length; + const outerLen = hasHoles ? holeIndices[ 0 ] * dim : data.length; + let outerNode = linkedList( data, 0, outerLen, dim, true ); + const triangles = []; + + if ( ! outerNode || outerNode.next === outerNode.prev ) return triangles; + + let minX, minY, maxX, maxY, x, y, invSize; + + if ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim ); + + // if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox + if ( data.length > 80 * dim ) { + + minX = maxX = data[ 0 ]; + minY = maxY = data[ 1 ]; + + for ( let i = dim; i < outerLen; i += dim ) { + + x = data[ i ]; + y = data[ i + 1 ]; + if ( x < minX ) minX = x; + if ( y < minY ) minY = y; + if ( x > maxX ) maxX = x; + if ( y > maxY ) maxY = y; + + } + + // minX, minY and invSize are later used to transform coords into integers for z-order calculation + invSize = Math.max( maxX - minX, maxY - minY ); + invSize = invSize !== 0 ? 1 / invSize : 0; + + } + + earcutLinked( outerNode, triangles, dim, minX, minY, invSize ); + + return triangles; + + } + +}; + +// create a circular doubly linked list from polygon points in the specified winding order +function linkedList( data, start, end, dim, clockwise ) { + + let i, last; + + if ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) { + + for ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last ); + + } else { + + for ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last ); + + } + + if ( last && equals( last, last.next ) ) { + + removeNode( last ); + last = last.next; + + } + + return last; + +} + +// eliminate colinear or duplicate points +function filterPoints( start, end ) { + + if ( ! start ) return start; + if ( ! end ) end = start; + + let p = start, + again; + do { + + again = false; + + if ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) { + + removeNode( p ); + p = end = p.prev; + if ( p === p.next ) break; + again = true; + + } else { + + p = p.next; + + } + + } while ( again || p !== end ); + + return end; + +} + +// main ear slicing loop which triangulates a polygon (given as a linked list) +function earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) { + + if ( ! ear ) return; + + // interlink polygon nodes in z-order + if ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize ); + + let stop = ear, + prev, next; + + // iterate through ears, slicing them one by one + while ( ear.prev !== ear.next ) { + + prev = ear.prev; + next = ear.next; + + if ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) { + + // cut off the triangle + triangles.push( prev.i / dim ); + triangles.push( ear.i / dim ); + triangles.push( next.i / dim ); + + removeNode( ear ); + + // skipping the next vertex leads to less sliver triangles + ear = next.next; + stop = next.next; + + continue; + + } + + ear = next; + + // if we looped through the whole remaining polygon and can't find any more ears + if ( ear === stop ) { + + // try filtering points and slicing again + if ( ! pass ) { + + earcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 ); + + // if this didn't work, try curing all small self-intersections locally + + } else if ( pass === 1 ) { + + ear = cureLocalIntersections( filterPoints( ear ), triangles, dim ); + earcutLinked( ear, triangles, dim, minX, minY, invSize, 2 ); + + // as a last resort, try splitting the remaining polygon into two + + } else if ( pass === 2 ) { + + splitEarcut( ear, triangles, dim, minX, minY, invSize ); + + } + + break; + + } + + } + +} + +// check whether a polygon node forms a valid ear with adjacent nodes +function isEar( ear ) { + + const a = ear.prev, + b = ear, + c = ear.next; + + if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear + + // now make sure we don't have other points inside the potential ear + let p = ear.next.next; + + while ( p !== ear.prev ) { + + if ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && + area( p.prev, p, p.next ) >= 0 ) return false; + p = p.next; + + } + + return true; + +} + +function isEarHashed( ear, minX, minY, invSize ) { + + const a = ear.prev, + b = ear, + c = ear.next; + + if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear + + // triangle bbox; min & max are calculated like this for speed + const minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ), + minTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ), + maxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ), + maxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y ); + + // z-order range for the current triangle bbox; + const minZ = zOrder( minTX, minTY, minX, minY, invSize ), + maxZ = zOrder( maxTX, maxTY, minX, minY, invSize ); + + let p = ear.prevZ, + n = ear.nextZ; + + // look for points inside the triangle in both directions + while ( p && p.z >= minZ && n && n.z <= maxZ ) { + + if ( p !== ear.prev && p !== ear.next && + pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && + area( p.prev, p, p.next ) >= 0 ) return false; + p = p.prevZ; + + if ( n !== ear.prev && n !== ear.next && + pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y ) && + area( n.prev, n, n.next ) >= 0 ) return false; + n = n.nextZ; + + } + + // look for remaining points in decreasing z-order + while ( p && p.z >= minZ ) { + + if ( p !== ear.prev && p !== ear.next && + pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && + area( p.prev, p, p.next ) >= 0 ) return false; + p = p.prevZ; + + } + + // look for remaining points in increasing z-order + while ( n && n.z <= maxZ ) { + + if ( n !== ear.prev && n !== ear.next && + pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, n.x, n.y ) && + area( n.prev, n, n.next ) >= 0 ) return false; + n = n.nextZ; + + } + + return true; + +} + +// go through all polygon nodes and cure small local self-intersections +function cureLocalIntersections( start, triangles, dim ) { + + let p = start; + do { + + const a = p.prev, + b = p.next.next; + + if ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) { + + triangles.push( a.i / dim ); + triangles.push( p.i / dim ); + triangles.push( b.i / dim ); + + // remove two nodes involved + removeNode( p ); + removeNode( p.next ); + + p = start = b; + + } + + p = p.next; + + } while ( p !== start ); + + return filterPoints( p ); + +} + +// try splitting polygon into two and triangulate them independently +function splitEarcut( start, triangles, dim, minX, minY, invSize ) { + + // look for a valid diagonal that divides the polygon into two + let a = start; + do { + + let b = a.next.next; + while ( b !== a.prev ) { + + if ( a.i !== b.i && isValidDiagonal( a, b ) ) { + + // split the polygon in two by the diagonal + let c = splitPolygon( a, b ); + + // filter colinear points around the cuts + a = filterPoints( a, a.next ); + c = filterPoints( c, c.next ); + + // run earcut on each half + earcutLinked( a, triangles, dim, minX, minY, invSize ); + earcutLinked( c, triangles, dim, minX, minY, invSize ); + return; + + } + + b = b.next; + + } + + a = a.next; + + } while ( a !== start ); + +} + +// link every hole into the outer loop, producing a single-ring polygon without holes +function eliminateHoles( data, holeIndices, outerNode, dim ) { + + const queue = []; + let i, len, start, end, list; + + for ( i = 0, len = holeIndices.length; i < len; i ++ ) { + + start = holeIndices[ i ] * dim; + end = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length; + list = linkedList( data, start, end, dim, false ); + if ( list === list.next ) list.steiner = true; + queue.push( getLeftmost( list ) ); + + } + + queue.sort( compareX ); + + // process holes from left to right + for ( i = 0; i < queue.length; i ++ ) { + + eliminateHole( queue[ i ], outerNode ); + outerNode = filterPoints( outerNode, outerNode.next ); + + } + + return outerNode; + +} + +function compareX( a, b ) { + + return a.x - b.x; + +} + +// find a bridge between vertices that connects hole with an outer ring and and link it +function eliminateHole( hole, outerNode ) { + + outerNode = findHoleBridge( hole, outerNode ); + if ( outerNode ) { + + const b = splitPolygon( outerNode, hole ); + + // filter collinear points around the cuts + filterPoints( outerNode, outerNode.next ); + filterPoints( b, b.next ); + + } + +} + +// David Eberly's algorithm for finding a bridge between hole and outer polygon +function findHoleBridge( hole, outerNode ) { + + let p = outerNode; + const hx = hole.x; + const hy = hole.y; + let qx = - Infinity, m; + + // find a segment intersected by a ray from the hole's leftmost point to the left; + // segment's endpoint with lesser x will be potential connection point + do { + + if ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) { + + const x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y ); + if ( x <= hx && x > qx ) { + + qx = x; + if ( x === hx ) { + + if ( hy === p.y ) return p; + if ( hy === p.next.y ) return p.next; + + } + + m = p.x < p.next.x ? p : p.next; + + } + + } + + p = p.next; + + } while ( p !== outerNode ); + + if ( ! m ) return null; + + if ( hx === qx ) return m; // hole touches outer segment; pick leftmost endpoint + + // look for points inside the triangle of hole point, segment intersection and endpoint; + // if there are no points found, we have a valid connection; + // otherwise choose the point of the minimum angle with the ray as connection point + + const stop = m, + mx = m.x, + my = m.y; + let tanMin = Infinity, tan; + + p = m; + + do { + + if ( hx >= p.x && p.x >= mx && hx !== p.x && + pointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) { + + tan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential + + if ( locallyInside( p, hole ) && ( tan < tanMin || ( tan === tanMin && ( p.x > m.x || ( p.x === m.x && sectorContainsSector( m, p ) ) ) ) ) ) { + + m = p; + tanMin = tan; + + } + + } + + p = p.next; + + } while ( p !== stop ); + + return m; + +} + +// whether sector in vertex m contains sector in vertex p in the same coordinates +function sectorContainsSector( m, p ) { + + return area( m.prev, m, p.prev ) < 0 && area( p.next, m, m.next ) < 0; + +} + +// interlink polygon nodes in z-order +function indexCurve( start, minX, minY, invSize ) { + + let p = start; + do { + + if ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize ); + p.prevZ = p.prev; + p.nextZ = p.next; + p = p.next; + + } while ( p !== start ); + + p.prevZ.nextZ = null; + p.prevZ = null; + + sortLinked( p ); + +} + +// Simon Tatham's linked list merge sort algorithm +// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html +function sortLinked( list ) { + + let i, p, q, e, tail, numMerges, pSize, qSize, + inSize = 1; + + do { + + p = list; + list = null; + tail = null; + numMerges = 0; + + while ( p ) { + + numMerges ++; + q = p; + pSize = 0; + for ( i = 0; i < inSize; i ++ ) { + + pSize ++; + q = q.nextZ; + if ( ! q ) break; + + } + + qSize = inSize; + + while ( pSize > 0 || ( qSize > 0 && q ) ) { + + if ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) { + + e = p; + p = p.nextZ; + pSize --; + + } else { + + e = q; + q = q.nextZ; + qSize --; + + } + + if ( tail ) tail.nextZ = e; + else list = e; + + e.prevZ = tail; + tail = e; + + } + + p = q; + + } + + tail.nextZ = null; + inSize *= 2; + + } while ( numMerges > 1 ); + + return list; + +} + +// z-order of a point given coords and inverse of the longer side of data bbox +function zOrder( x, y, minX, minY, invSize ) { + + // coords are transformed into non-negative 15-bit integer range + x = 32767 * ( x - minX ) * invSize; + y = 32767 * ( y - minY ) * invSize; + + x = ( x | ( x << 8 ) ) & 0x00FF00FF; + x = ( x | ( x << 4 ) ) & 0x0F0F0F0F; + x = ( x | ( x << 2 ) ) & 0x33333333; + x = ( x | ( x << 1 ) ) & 0x55555555; + + y = ( y | ( y << 8 ) ) & 0x00FF00FF; + y = ( y | ( y << 4 ) ) & 0x0F0F0F0F; + y = ( y | ( y << 2 ) ) & 0x33333333; + y = ( y | ( y << 1 ) ) & 0x55555555; + + return x | ( y << 1 ); + +} + +// find the leftmost node of a polygon ring +function getLeftmost( start ) { + + let p = start, + leftmost = start; + do { + + if ( p.x < leftmost.x || ( p.x === leftmost.x && p.y < leftmost.y ) ) leftmost = p; + p = p.next; + + } while ( p !== start ); + + return leftmost; + +} + +// check if a point lies within a convex triangle +function pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) { + + return ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 && + ( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 && + ( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0; + +} + +// check if a diagonal between two polygon nodes is valid (lies in polygon interior) +function isValidDiagonal( a, b ) { + + return a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) && // dones't intersect other edges + ( locallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b ) && // locally visible + ( area( a.prev, a, b.prev ) || area( a, b.prev, b ) ) || // does not create opposite-facing sectors + equals( a, b ) && area( a.prev, a, a.next ) > 0 && area( b.prev, b, b.next ) > 0 ); // special zero-length case + +} + +// signed area of a triangle +function area( p, q, r ) { + + return ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y ); + +} + +// check if two points are equal +function equals( p1, p2 ) { + + return p1.x === p2.x && p1.y === p2.y; + +} + +// check if two segments intersect +function intersects( p1, q1, p2, q2 ) { + + const o1 = sign( area( p1, q1, p2 ) ); + const o2 = sign( area( p1, q1, q2 ) ); + const o3 = sign( area( p2, q2, p1 ) ); + const o4 = sign( area( p2, q2, q1 ) ); + + if ( o1 !== o2 && o3 !== o4 ) return true; // general case + + if ( o1 === 0 && onSegment( p1, p2, q1 ) ) return true; // p1, q1 and p2 are collinear and p2 lies on p1q1 + if ( o2 === 0 && onSegment( p1, q2, q1 ) ) return true; // p1, q1 and q2 are collinear and q2 lies on p1q1 + if ( o3 === 0 && onSegment( p2, p1, q2 ) ) return true; // p2, q2 and p1 are collinear and p1 lies on p2q2 + if ( o4 === 0 && onSegment( p2, q1, q2 ) ) return true; // p2, q2 and q1 are collinear and q1 lies on p2q2 + + return false; + +} + +// for collinear points p, q, r, check if point q lies on segment pr +function onSegment( p, q, r ) { + + return q.x <= Math.max( p.x, r.x ) && q.x >= Math.min( p.x, r.x ) && q.y <= Math.max( p.y, r.y ) && q.y >= Math.min( p.y, r.y ); + +} + +function sign( num ) { + + return num > 0 ? 1 : num < 0 ? - 1 : 0; + +} + +// check if a polygon diagonal intersects any polygon segments +function intersectsPolygon( a, b ) { + + let p = a; + do { + + if ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && + intersects( p, p.next, a, b ) ) return true; + p = p.next; + + } while ( p !== a ); + + return false; + +} + +// check if a polygon diagonal is locally inside the polygon +function locallyInside( a, b ) { + + return area( a.prev, a, a.next ) < 0 ? + area( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 : + area( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0; + +} + +// check if the middle point of a polygon diagonal is inside the polygon +function middleInside( a, b ) { + + let p = a, + inside = false; + const px = ( a.x + b.x ) / 2, + py = ( a.y + b.y ) / 2; + do { + + if ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y && + ( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) ) + inside = ! inside; + p = p.next; + + } while ( p !== a ); + + return inside; + +} + +// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two; +// if one belongs to the outer ring and another to a hole, it merges it into a single ring +function splitPolygon( a, b ) { + + const a2 = new Node( a.i, a.x, a.y ), + b2 = new Node( b.i, b.x, b.y ), + an = a.next, + bp = b.prev; + + a.next = b; + b.prev = a; + + a2.next = an; + an.prev = a2; + + b2.next = a2; + a2.prev = b2; + + bp.next = b2; + b2.prev = bp; + + return b2; + +} + +// create a node and optionally link it with previous one (in a circular doubly linked list) +function insertNode( i, x, y, last ) { + + const p = new Node( i, x, y ); + + if ( ! last ) { + + p.prev = p; + p.next = p; + + } else { + + p.next = last.next; + p.prev = last; + last.next.prev = p; + last.next = p; + + } + + return p; + +} + +function removeNode( p ) { + + p.next.prev = p.prev; + p.prev.next = p.next; + + if ( p.prevZ ) p.prevZ.nextZ = p.nextZ; + if ( p.nextZ ) p.nextZ.prevZ = p.prevZ; + +} + +function Node( i, x, y ) { + + // vertex index in coordinates array + this.i = i; + + // vertex coordinates + this.x = x; + this.y = y; + + // previous and next vertex nodes in a polygon ring + this.prev = null; + this.next = null; + + // z-order curve value + this.z = null; + + // previous and next nodes in z-order + this.prevZ = null; + this.nextZ = null; + + // indicates whether this is a steiner point + this.steiner = false; + +} + +function signedArea( data, start, end, dim ) { + + let sum = 0; + for ( let i = start, j = end - dim; i < end; i += dim ) { + + sum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] ); + j = i; + + } + + return sum; + +} + +const ShapeUtils = { + + // calculate area of the contour polygon + + area: function ( contour ) { + + const n = contour.length; + let a = 0.0; + + for ( let p = n - 1, q = 0; q < n; p = q ++ ) { + + a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y; + + } + + return a * 0.5; + + }, + + isClockWise: function ( pts ) { + + return ShapeUtils.area( pts ) < 0; + + }, + + triangulateShape: function ( contour, holes ) { + + const vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ] + const holeIndices = []; // array of hole indices + const faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ] + + removeDupEndPts( contour ); + addContour( vertices, contour ); + + // + + let holeIndex = contour.length; + + holes.forEach( removeDupEndPts ); + + for ( let i = 0; i < holes.length; i ++ ) { + + holeIndices.push( holeIndex ); + holeIndex += holes[ i ].length; + addContour( vertices, holes[ i ] ); + + } + + // + + const triangles = Earcut.triangulate( vertices, holeIndices ); + + // + + for ( let i = 0; i < triangles.length; i += 3 ) { + + faces.push( triangles.slice( i, i + 3 ) ); + + } + + return faces; + + } + +}; + +function removeDupEndPts( points ) { + + const l = points.length; + + if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) { + + points.pop(); + + } + +} + +function addContour( vertices, contour ) { + + for ( let i = 0; i < contour.length; i ++ ) { + + vertices.push( contour[ i ].x ); + vertices.push( contour[ i ].y ); + + } + +} + +/** + * Creates extruded geometry from a path shape. + * + * parameters = { + * + * curveSegments: , // number of points on the curves + * steps: , // number of points for z-side extrusions / used for subdividing segments of extrude spline too + * depth: , // Depth to extrude the shape + * + * bevelEnabled: , // turn on bevel + * bevelThickness: , // how deep into the original shape bevel goes + * bevelSize: , // how far from shape outline (including bevelOffset) is bevel + * bevelOffset: , // how far from shape outline does bevel start + * bevelSegments: , // number of bevel layers + * + * extrudePath: // curve to extrude shape along + * + * UVGenerator: // object that provides UV generator functions + * + * } + */ + +class ExtrudeBufferGeometry extends BufferGeometry { + + constructor( shapes, options ) { + + super(); + + this.type = 'ExtrudeBufferGeometry'; + + this.parameters = { + shapes: shapes, + options: options + }; + + shapes = Array.isArray( shapes ) ? shapes : [ shapes ]; + + const scope = this; + + const verticesArray = []; + const uvArray = []; + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + addShape( shape ); + + } + + // build geometry + + this.setAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) ); + + this.computeVertexNormals(); + + // functions + + function addShape( shape ) { + + const placeholder = []; + + // options + + const curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12; + const steps = options.steps !== undefined ? options.steps : 1; + let depth = options.depth !== undefined ? options.depth : 100; + + let bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true; + let bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6; + let bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2; + let bevelOffset = options.bevelOffset !== undefined ? options.bevelOffset : 0; + let bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3; + + const extrudePath = options.extrudePath; + + const uvgen = options.UVGenerator !== undefined ? options.UVGenerator : WorldUVGenerator; + + // deprecated options + + if ( options.amount !== undefined ) { + + console.warn( 'THREE.ExtrudeBufferGeometry: amount has been renamed to depth.' ); + depth = options.amount; + + } + + // + + let extrudePts, extrudeByPath = false; + let splineTube, binormal, normal, position2; + + if ( extrudePath ) { + + extrudePts = extrudePath.getSpacedPoints( steps ); + + extrudeByPath = true; + bevelEnabled = false; // bevels not supported for path extrusion + + // SETUP TNB variables + + // TODO1 - have a .isClosed in spline? + + splineTube = extrudePath.computeFrenetFrames( steps, false ); + + // console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length); + + binormal = new Vector3(); + normal = new Vector3(); + position2 = new Vector3(); + + } + + // Safeguards if bevels are not enabled + + if ( ! bevelEnabled ) { + + bevelSegments = 0; + bevelThickness = 0; + bevelSize = 0; + bevelOffset = 0; + + } + + // Variables initialization + + const shapePoints = shape.extractPoints( curveSegments ); + + let vertices = shapePoints.shape; + const holes = shapePoints.holes; + + const reverse = ! ShapeUtils.isClockWise( vertices ); + + if ( reverse ) { + + vertices = vertices.reverse(); + + // Maybe we should also check if holes are in the opposite direction, just to be safe ... + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + + if ( ShapeUtils.isClockWise( ahole ) ) { + + holes[ h ] = ahole.reverse(); + + } + + } + + } + + + const faces = ShapeUtils.triangulateShape( vertices, holes ); + + /* Vertices */ + + const contour = vertices; // vertices has all points but contour has only points of circumference + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + + vertices = vertices.concat( ahole ); + + } + + + function scalePt2( pt, vec, size ) { + + if ( ! vec ) console.error( 'THREE.ExtrudeGeometry: vec does not exist' ); + + return vec.clone().multiplyScalar( size ).add( pt ); + + } + + const vlen = vertices.length, flen = faces.length; + + + // Find directions for point movement + + + function getBevelVec( inPt, inPrev, inNext ) { + + // computes for inPt the corresponding point inPt' on a new contour + // shifted by 1 unit (length of normalized vector) to the left + // if we walk along contour clockwise, this new contour is outside the old one + // + // inPt' is the intersection of the two lines parallel to the two + // adjacent edges of inPt at a distance of 1 unit on the left side. + + let v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt + + // good reading for geometry algorithms (here: line-line intersection) + // http://geomalgorithms.com/a05-_intersect-1.html + + const v_prev_x = inPt.x - inPrev.x, + v_prev_y = inPt.y - inPrev.y; + const v_next_x = inNext.x - inPt.x, + v_next_y = inNext.y - inPt.y; + + const v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y ); + + // check for collinear edges + const collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x ); + + if ( Math.abs( collinear0 ) > Number.EPSILON ) { + + // not collinear + + // length of vectors for normalizing + + const v_prev_len = Math.sqrt( v_prev_lensq ); + const v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y ); + + // shift adjacent points by unit vectors to the left + + const ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len ); + const ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len ); + + const ptNextShift_x = ( inNext.x - v_next_y / v_next_len ); + const ptNextShift_y = ( inNext.y + v_next_x / v_next_len ); + + // scaling factor for v_prev to intersection point + + const sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y - + ( ptNextShift_y - ptPrevShift_y ) * v_next_x ) / + ( v_prev_x * v_next_y - v_prev_y * v_next_x ); + + // vector from inPt to intersection point + + v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x ); + v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y ); + + // Don't normalize!, otherwise sharp corners become ugly + // but prevent crazy spikes + const v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y ); + if ( v_trans_lensq <= 2 ) { + + return new Vector2( v_trans_x, v_trans_y ); + + } else { + + shrink_by = Math.sqrt( v_trans_lensq / 2 ); + + } + + } else { + + // handle special case of collinear edges + + let direction_eq = false; // assumes: opposite + + if ( v_prev_x > Number.EPSILON ) { + + if ( v_next_x > Number.EPSILON ) { + + direction_eq = true; + + } + + } else { + + if ( v_prev_x < - Number.EPSILON ) { + + if ( v_next_x < - Number.EPSILON ) { + + direction_eq = true; + + } + + } else { + + if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) { + + direction_eq = true; + + } + + } + + } + + if ( direction_eq ) { + + // console.log("Warning: lines are a straight sequence"); + v_trans_x = - v_prev_y; + v_trans_y = v_prev_x; + shrink_by = Math.sqrt( v_prev_lensq ); + + } else { + + // console.log("Warning: lines are a straight spike"); + v_trans_x = v_prev_x; + v_trans_y = v_prev_y; + shrink_by = Math.sqrt( v_prev_lensq / 2 ); + + } + + } + + return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by ); + + } + + + const contourMovements = []; + + for ( let i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) { + + if ( j === il ) j = 0; + if ( k === il ) k = 0; + + // (j)---(i)---(k) + // console.log('i,j,k', i, j , k) + + contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] ); + + } + + const holesMovements = []; + let oneHoleMovements, verticesMovements = contourMovements.concat(); + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + + oneHoleMovements = []; + + for ( let i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) { + + if ( j === il ) j = 0; + if ( k === il ) k = 0; + + // (j)---(i)---(k) + oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] ); + + } + + holesMovements.push( oneHoleMovements ); + verticesMovements = verticesMovements.concat( oneHoleMovements ); + + } + + + // Loop bevelSegments, 1 for the front, 1 for the back + + for ( let b = 0; b < bevelSegments; b ++ ) { + + //for ( b = bevelSegments; b > 0; b -- ) { + + const t = b / bevelSegments; + const z = bevelThickness * Math.cos( t * Math.PI / 2 ); + const bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset; + + // contract shape + + for ( let i = 0, il = contour.length; i < il; i ++ ) { + + const vert = scalePt2( contour[ i ], contourMovements[ i ], bs ); + + v( vert.x, vert.y, - z ); + + } + + // expand holes + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + oneHoleMovements = holesMovements[ h ]; + + for ( let i = 0, il = ahole.length; i < il; i ++ ) { + + const vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs ); + + v( vert.x, vert.y, - z ); + + } + + } + + } + + const bs = bevelSize + bevelOffset; + + // Back facing vertices + + for ( let i = 0; i < vlen; i ++ ) { + + const vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ]; + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, 0 ); + + } else { + + // v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x ); + + normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x ); + binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y ); + + position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal ); + + v( position2.x, position2.y, position2.z ); + + } + + } + + // Add stepped vertices... + // Including front facing vertices + + for ( let s = 1; s <= steps; s ++ ) { + + for ( let i = 0; i < vlen; i ++ ) { + + const vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ]; + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, depth / steps * s ); + + } else { + + // v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x ); + + normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x ); + binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y ); + + position2.copy( extrudePts[ s ] ).add( normal ).add( binormal ); + + v( position2.x, position2.y, position2.z ); + + } + + } + + } + + + // Add bevel segments planes + + //for ( b = 1; b <= bevelSegments; b ++ ) { + for ( let b = bevelSegments - 1; b >= 0; b -- ) { + + const t = b / bevelSegments; + const z = bevelThickness * Math.cos( t * Math.PI / 2 ); + const bs = bevelSize * Math.sin( t * Math.PI / 2 ) + bevelOffset; + + // contract shape + + for ( let i = 0, il = contour.length; i < il; i ++ ) { + + const vert = scalePt2( contour[ i ], contourMovements[ i ], bs ); + v( vert.x, vert.y, depth + z ); + + } + + // expand holes + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + oneHoleMovements = holesMovements[ h ]; + + for ( let i = 0, il = ahole.length; i < il; i ++ ) { + + const vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs ); + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, depth + z ); + + } else { + + v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z ); + + } + + } + + } + + } + + /* Faces */ + + // Top and bottom faces + + buildLidFaces(); + + // Sides faces + + buildSideFaces(); + + + ///// Internal functions + + function buildLidFaces() { + + const start = verticesArray.length / 3; + + if ( bevelEnabled ) { + + let layer = 0; // steps + 1 + let offset = vlen * layer; + + // Bottom faces + + for ( let i = 0; i < flen; i ++ ) { + + const face = faces[ i ]; + f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset ); + + } + + layer = steps + bevelSegments * 2; + offset = vlen * layer; + + // Top faces + + for ( let i = 0; i < flen; i ++ ) { + + const face = faces[ i ]; + f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset ); + + } + + } else { + + // Bottom faces + + for ( let i = 0; i < flen; i ++ ) { + + const face = faces[ i ]; + f3( face[ 2 ], face[ 1 ], face[ 0 ] ); + + } + + // Top faces + + for ( let i = 0; i < flen; i ++ ) { + + const face = faces[ i ]; + f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps ); + + } + + } + + scope.addGroup( start, verticesArray.length / 3 - start, 0 ); + + } + + // Create faces for the z-sides of the shape + + function buildSideFaces() { + + const start = verticesArray.length / 3; + let layeroffset = 0; + sidewalls( contour, layeroffset ); + layeroffset += contour.length; + + for ( let h = 0, hl = holes.length; h < hl; h ++ ) { + + const ahole = holes[ h ]; + sidewalls( ahole, layeroffset ); + + //, true + layeroffset += ahole.length; + + } + + + scope.addGroup( start, verticesArray.length / 3 - start, 1 ); + + + } + + function sidewalls( contour, layeroffset ) { + + let i = contour.length; + + while ( -- i >= 0 ) { + + const j = i; + let k = i - 1; + if ( k < 0 ) k = contour.length - 1; + + //console.log('b', i,j, i-1, k,vertices.length); + + for ( let s = 0, sl = ( steps + bevelSegments * 2 ); s < sl; s ++ ) { + + const slen1 = vlen * s; + const slen2 = vlen * ( s + 1 ); + + const a = layeroffset + j + slen1, + b = layeroffset + k + slen1, + c = layeroffset + k + slen2, + d = layeroffset + j + slen2; + + f4( a, b, c, d ); + + } + + } + + } + + function v( x, y, z ) { + + placeholder.push( x ); + placeholder.push( y ); + placeholder.push( z ); + + } + + + function f3( a, b, c ) { + + addVertex( a ); + addVertex( b ); + addVertex( c ); + + const nextIndex = verticesArray.length / 3; + const uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 ); + + addUV( uvs[ 0 ] ); + addUV( uvs[ 1 ] ); + addUV( uvs[ 2 ] ); + + } + + function f4( a, b, c, d ) { + + addVertex( a ); + addVertex( b ); + addVertex( d ); + + addVertex( b ); + addVertex( c ); + addVertex( d ); + + + const nextIndex = verticesArray.length / 3; + const uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 ); + + addUV( uvs[ 0 ] ); + addUV( uvs[ 1 ] ); + addUV( uvs[ 3 ] ); + + addUV( uvs[ 1 ] ); + addUV( uvs[ 2 ] ); + addUV( uvs[ 3 ] ); + + } + + function addVertex( index ) { + + verticesArray.push( placeholder[ index * 3 + 0 ] ); + verticesArray.push( placeholder[ index * 3 + 1 ] ); + verticesArray.push( placeholder[ index * 3 + 2 ] ); + + } + + + function addUV( vector2 ) { + + uvArray.push( vector2.x ); + uvArray.push( vector2.y ); + + } + + } + + } + + toJSON() { + + const data = BufferGeometry.prototype.toJSON.call( this ); + + const shapes = this.parameters.shapes; + const options = this.parameters.options; + + return toJSON( shapes, options, data ); + + } + +} + +const WorldUVGenerator = { + + generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) { + + const a_x = vertices[ indexA * 3 ]; + const a_y = vertices[ indexA * 3 + 1 ]; + const b_x = vertices[ indexB * 3 ]; + const b_y = vertices[ indexB * 3 + 1 ]; + const c_x = vertices[ indexC * 3 ]; + const c_y = vertices[ indexC * 3 + 1 ]; + + return [ + new Vector2( a_x, a_y ), + new Vector2( b_x, b_y ), + new Vector2( c_x, c_y ) + ]; + + }, + + generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) { + + const a_x = vertices[ indexA * 3 ]; + const a_y = vertices[ indexA * 3 + 1 ]; + const a_z = vertices[ indexA * 3 + 2 ]; + const b_x = vertices[ indexB * 3 ]; + const b_y = vertices[ indexB * 3 + 1 ]; + const b_z = vertices[ indexB * 3 + 2 ]; + const c_x = vertices[ indexC * 3 ]; + const c_y = vertices[ indexC * 3 + 1 ]; + const c_z = vertices[ indexC * 3 + 2 ]; + const d_x = vertices[ indexD * 3 ]; + const d_y = vertices[ indexD * 3 + 1 ]; + const d_z = vertices[ indexD * 3 + 2 ]; + + if ( Math.abs( a_y - b_y ) < 0.01 ) { + + return [ + new Vector2( a_x, 1 - a_z ), + new Vector2( b_x, 1 - b_z ), + new Vector2( c_x, 1 - c_z ), + new Vector2( d_x, 1 - d_z ) + ]; + + } else { + + return [ + new Vector2( a_y, 1 - a_z ), + new Vector2( b_y, 1 - b_z ), + new Vector2( c_y, 1 - c_z ), + new Vector2( d_y, 1 - d_z ) + ]; + + } + + } + +}; + +function toJSON( shapes, options, data ) { + + data.shapes = []; + + if ( Array.isArray( shapes ) ) { + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + + data.shapes.push( shape.uuid ); + + } + + } else { + + data.shapes.push( shapes.uuid ); + + } + + if ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON(); + + return data; + +} + +/** + * Creates extruded geometry from a path shape. + * + * parameters = { + * + * curveSegments: , // number of points on the curves + * steps: , // number of points for z-side extrusions / used for subdividing segments of extrude spline too + * depth: , // Depth to extrude the shape + * + * bevelEnabled: , // turn on bevel + * bevelThickness: , // how deep into the original shape bevel goes + * bevelSize: , // how far from shape outline (including bevelOffset) is bevel + * bevelOffset: , // how far from shape outline does bevel start + * bevelSegments: , // number of bevel layers + * + * extrudePath: // curve to extrude shape along + * + * UVGenerator: // object that provides UV generator functions + * + * } + */ + +class ExtrudeGeometry extends Geometry { + + constructor( shapes, options ) { + + super(); + + this.type = 'ExtrudeGeometry'; + + this.parameters = { + shapes: shapes, + options: options + }; + + this.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) ); + this.mergeVertices(); + + } + + toJSON() { + + const data = super.toJSON(); + + const shapes = this.parameters.shapes; + const options = this.parameters.options; + + return toJSON$1( shapes, options, data ); + + } + +} + +function toJSON$1( shapes, options, data ) { + + data.shapes = []; + + if ( Array.isArray( shapes ) ) { + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + + data.shapes.push( shape.uuid ); + + } + + } else { + + data.shapes.push( shapes.uuid ); + + } + + if ( options.extrudePath !== undefined ) data.options.extrudePath = options.extrudePath.toJSON(); + + return data; + +} + +class IcosahedronBufferGeometry extends PolyhedronBufferGeometry { + + constructor( radius = 1, detail = 0 ) { + + const t = ( 1 + Math.sqrt( 5 ) ) / 2; + + const vertices = [ + - 1, t, 0, 1, t, 0, - 1, - t, 0, 1, - t, 0, + 0, - 1, t, 0, 1, t, 0, - 1, - t, 0, 1, - t, + t, 0, - 1, t, 0, 1, - t, 0, - 1, - t, 0, 1 + ]; + + const indices = [ + 0, 11, 5, 0, 5, 1, 0, 1, 7, 0, 7, 10, 0, 10, 11, + 1, 5, 9, 5, 11, 4, 11, 10, 2, 10, 7, 6, 7, 1, 8, + 3, 9, 4, 3, 4, 2, 3, 2, 6, 3, 6, 8, 3, 8, 9, + 4, 9, 5, 2, 4, 11, 6, 2, 10, 8, 6, 7, 9, 8, 1 + ]; + + super( vertices, indices, radius, detail ); + + this.type = 'IcosahedronBufferGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + +} + +class IcosahedronGeometry extends Geometry { + + constructor( radius, detail ) { + + super(); + + this.type = 'IcosahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) ); + this.mergeVertices(); + + } + +} + +class LatheBufferGeometry extends BufferGeometry { + + constructor( points, segments = 12, phiStart = 0, phiLength = Math.PI * 2 ) { + + super(); + + this.type = 'LatheBufferGeometry'; + + this.parameters = { + points: points, + segments: segments, + phiStart: phiStart, + phiLength: phiLength + }; + + segments = Math.floor( segments ); + + // clamp phiLength so it's in range of [ 0, 2PI ] + + phiLength = MathUtils.clamp( phiLength, 0, Math.PI * 2 ); + + // buffers + + const indices = []; + const vertices = []; + const uvs = []; + + // helper variables + + const inverseSegments = 1.0 / segments; + const vertex = new Vector3(); + const uv = new Vector2(); + + // generate vertices and uvs + + for ( let i = 0; i <= segments; i ++ ) { + + const phi = phiStart + i * inverseSegments * phiLength; + + const sin = Math.sin( phi ); + const cos = Math.cos( phi ); + + for ( let j = 0; j <= ( points.length - 1 ); j ++ ) { + + // vertex + + vertex.x = points[ j ].x * sin; + vertex.y = points[ j ].y; + vertex.z = points[ j ].x * cos; + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // uv + + uv.x = i / segments; + uv.y = j / ( points.length - 1 ); + + uvs.push( uv.x, uv.y ); + + + } + + } + + // indices + + for ( let i = 0; i < segments; i ++ ) { + + for ( let j = 0; j < ( points.length - 1 ); j ++ ) { + + const base = j + i * points.length; + + const a = base; + const b = base + points.length; + const c = base + points.length + 1; + const d = base + 1; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + // generate normals + + this.computeVertexNormals(); + + // if the geometry is closed, we need to average the normals along the seam. + // because the corresponding vertices are identical (but still have different UVs). + + if ( phiLength === Math.PI * 2 ) { + + const normals = this.attributes.normal.array; + const n1 = new Vector3(); + const n2 = new Vector3(); + const n = new Vector3(); + + // this is the buffer offset for the last line of vertices + + const base = segments * points.length * 3; + + for ( let i = 0, j = 0; i < points.length; i ++, j += 3 ) { + + // select the normal of the vertex in the first line + + n1.x = normals[ j + 0 ]; + n1.y = normals[ j + 1 ]; + n1.z = normals[ j + 2 ]; + + // select the normal of the vertex in the last line + + n2.x = normals[ base + j + 0 ]; + n2.y = normals[ base + j + 1 ]; + n2.z = normals[ base + j + 2 ]; + + // average normals + + n.addVectors( n1, n2 ).normalize(); + + // assign the new values to both normals + + normals[ j + 0 ] = normals[ base + j + 0 ] = n.x; + normals[ j + 1 ] = normals[ base + j + 1 ] = n.y; + normals[ j + 2 ] = normals[ base + j + 2 ] = n.z; + + } + + } + + } + +} + +class LatheGeometry extends Geometry { + + constructor( points, segments, phiStart, phiLength ) { + + super(); + + this.type = 'LatheGeometry'; + + this.parameters = { + points: points, + segments: segments, + phiStart: phiStart, + phiLength: phiLength + }; + + this.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) ); + this.mergeVertices(); + + } + +} + +class OctahedronBufferGeometry extends PolyhedronBufferGeometry { + + constructor( radius = 1, detail = 0 ) { + + const vertices = [ + 1, 0, 0, - 1, 0, 0, 0, 1, 0, + 0, - 1, 0, 0, 0, 1, 0, 0, - 1 + ]; + + const indices = [ + 0, 2, 4, 0, 4, 3, 0, 3, 5, + 0, 5, 2, 1, 2, 5, 1, 5, 3, + 1, 3, 4, 1, 4, 2 + ]; + + super( vertices, indices, radius, detail ); + + this.type = 'OctahedronBufferGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + +} + +class OctahedronGeometry extends Geometry { + + constructor( radius, detail ) { + + super(); + + this.type = 'OctahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) ); + this.mergeVertices(); + + } + +} + +/** + * Parametric Surfaces Geometry + * based on the brilliant article by @prideout https://prideout.net/blog/old/blog/index.html@p=44.html + */ + +function ParametricBufferGeometry( func, slices, stacks ) { + + BufferGeometry.call( this ); + + this.type = 'ParametricBufferGeometry'; + + this.parameters = { + func: func, + slices: slices, + stacks: stacks + }; + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + const EPS = 0.00001; + + const normal = new Vector3(); + + const p0 = new Vector3(), p1 = new Vector3(); + const pu = new Vector3(), pv = new Vector3(); + + if ( func.length < 3 ) { + + console.error( 'THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.' ); + + } + + // generate vertices, normals and uvs + + const sliceCount = slices + 1; + + for ( let i = 0; i <= stacks; i ++ ) { + + const v = i / stacks; + + for ( let j = 0; j <= slices; j ++ ) { + + const u = j / slices; + + // vertex + + func( u, v, p0 ); + vertices.push( p0.x, p0.y, p0.z ); + + // normal + + // approximate tangent vectors via finite differences + + if ( u - EPS >= 0 ) { + + func( u - EPS, v, p1 ); + pu.subVectors( p0, p1 ); + + } else { + + func( u + EPS, v, p1 ); + pu.subVectors( p1, p0 ); + + } + + if ( v - EPS >= 0 ) { + + func( u, v - EPS, p1 ); + pv.subVectors( p0, p1 ); + + } else { + + func( u, v + EPS, p1 ); + pv.subVectors( p1, p0 ); + + } + + // cross product of tangent vectors returns surface normal + + normal.crossVectors( pu, pv ).normalize(); + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( u, v ); + + } + + } + + // generate indices + + for ( let i = 0; i < stacks; i ++ ) { + + for ( let j = 0; j < slices; j ++ ) { + + const a = i * sliceCount + j; + const b = i * sliceCount + j + 1; + const c = ( i + 1 ) * sliceCount + j + 1; + const d = ( i + 1 ) * sliceCount + j; + + // faces one and two + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + +} + +ParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); +ParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry; + +/** + * Parametric Surfaces Geometry + * based on the brilliant article by @prideout https://prideout.net/blog/old/blog/index.html@p=44.html + */ + +function ParametricGeometry( func, slices, stacks ) { + + Geometry.call( this ); + + this.type = 'ParametricGeometry'; + + this.parameters = { + func: func, + slices: slices, + stacks: stacks + }; + + this.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) ); + this.mergeVertices(); + +} + +ParametricGeometry.prototype = Object.create( Geometry.prototype ); +ParametricGeometry.prototype.constructor = ParametricGeometry; + +class PlaneGeometry extends Geometry { + + constructor( width, height, widthSegments, heightSegments ) { + + super(); + + this.type = 'PlaneGeometry'; + + this.parameters = { + width: width, + height: height, + widthSegments: widthSegments, + heightSegments: heightSegments + }; + + this.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) ); + this.mergeVertices(); + + } + +} + +class PolyhedronGeometry extends Geometry { + + constructor( vertices, indices, radius, detail ) { + + super(); + + this.type = 'PolyhedronGeometry'; + + this.parameters = { + vertices: vertices, + indices: indices, + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) ); + this.mergeVertices(); + + } + +} + +class RingBufferGeometry extends BufferGeometry { + + constructor( innerRadius = 0.5, outerRadius = 1, thetaSegments = 8, phiSegments = 1, thetaStart = 0, thetaLength = Math.PI * 2 ) { + + super(); + + this.type = 'RingBufferGeometry'; + + this.parameters = { + innerRadius: innerRadius, + outerRadius: outerRadius, + thetaSegments: thetaSegments, + phiSegments: phiSegments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + thetaSegments = Math.max( 3, thetaSegments ); + phiSegments = Math.max( 1, phiSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // some helper variables + + let radius = innerRadius; + const radiusStep = ( ( outerRadius - innerRadius ) / phiSegments ); + const vertex = new Vector3(); + const uv = new Vector2(); + + // generate vertices, normals and uvs + + for ( let j = 0; j <= phiSegments; j ++ ) { + + for ( let i = 0; i <= thetaSegments; i ++ ) { + + // values are generate from the inside of the ring to the outside + + const segment = thetaStart + i / thetaSegments * thetaLength; + + // vertex + + vertex.x = radius * Math.cos( segment ); + vertex.y = radius * Math.sin( segment ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normals.push( 0, 0, 1 ); + + // uv + + uv.x = ( vertex.x / outerRadius + 1 ) / 2; + uv.y = ( vertex.y / outerRadius + 1 ) / 2; + + uvs.push( uv.x, uv.y ); + + } + + // increase the radius for next row of vertices + + radius += radiusStep; + + } + + // indices + + for ( let j = 0; j < phiSegments; j ++ ) { + + const thetaSegmentLevel = j * ( thetaSegments + 1 ); + + for ( let i = 0; i < thetaSegments; i ++ ) { + + const segment = i + thetaSegmentLevel; + + const a = segment; + const b = segment + thetaSegments + 1; + const c = segment + thetaSegments + 2; + const d = segment + 1; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + +} + +class RingGeometry extends Geometry { + + constructor( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) { + + super(); + + this.type = 'RingGeometry'; + + this.parameters = { + innerRadius: innerRadius, + outerRadius: outerRadius, + thetaSegments: thetaSegments, + phiSegments: phiSegments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + this.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) ); + this.mergeVertices(); + + } + +} + +class ShapeBufferGeometry extends BufferGeometry { + + constructor( shapes, curveSegments = 12 ) { + + super(); + this.type = 'ShapeBufferGeometry'; + + this.parameters = { + shapes: shapes, + curveSegments: curveSegments + }; + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + let groupStart = 0; + let groupCount = 0; + + // allow single and array values for "shapes" parameter + + if ( Array.isArray( shapes ) === false ) { + + addShape( shapes ); + + } else { + + for ( let i = 0; i < shapes.length; i ++ ) { + + addShape( shapes[ i ] ); + + this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support + + groupStart += groupCount; + groupCount = 0; + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + + // helper functions + + function addShape( shape ) { + + const indexOffset = vertices.length / 3; + const points = shape.extractPoints( curveSegments ); + + let shapeVertices = points.shape; + const shapeHoles = points.holes; + + // check direction of vertices + + if ( ShapeUtils.isClockWise( shapeVertices ) === false ) { + + shapeVertices = shapeVertices.reverse(); + + } + + for ( let i = 0, l = shapeHoles.length; i < l; i ++ ) { + + const shapeHole = shapeHoles[ i ]; + + if ( ShapeUtils.isClockWise( shapeHole ) === true ) { + + shapeHoles[ i ] = shapeHole.reverse(); + + } + + } + + const faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles ); + + // join vertices of inner and outer paths to a single array + + for ( let i = 0, l = shapeHoles.length; i < l; i ++ ) { + + const shapeHole = shapeHoles[ i ]; + shapeVertices = shapeVertices.concat( shapeHole ); + + } + + // vertices, normals, uvs + + for ( let i = 0, l = shapeVertices.length; i < l; i ++ ) { + + const vertex = shapeVertices[ i ]; + + vertices.push( vertex.x, vertex.y, 0 ); + normals.push( 0, 0, 1 ); + uvs.push( vertex.x, vertex.y ); // world uvs + + } + + // incides + + for ( let i = 0, l = faces.length; i < l; i ++ ) { + + const face = faces[ i ]; + + const a = face[ 0 ] + indexOffset; + const b = face[ 1 ] + indexOffset; + const c = face[ 2 ] + indexOffset; + + indices.push( a, b, c ); + groupCount += 3; + + } + + } + + } + + toJSON() { + + const data = BufferGeometry.prototype.toJSON.call( this ); + + const shapes = this.parameters.shapes; + + return toJSON$2( shapes, data ); + + } + +} + +function toJSON$2( shapes, data ) { + + data.shapes = []; + + if ( Array.isArray( shapes ) ) { + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + + data.shapes.push( shape.uuid ); + + } + + } else { + + data.shapes.push( shapes.uuid ); + + } + + return data; + +} + +class ShapeGeometry extends Geometry { + + constructor( shapes, curveSegments ) { + + super(); + this.type = 'ShapeGeometry'; + + if ( typeof curveSegments === 'object' ) { + + console.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' ); + + curveSegments = curveSegments.curveSegments; + + } + + this.parameters = { + shapes: shapes, + curveSegments: curveSegments + }; + + this.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) ); + this.mergeVertices(); + + } + + toJSON() { + + const data = Geometry.prototype.toJSON.call( this ); + + const shapes = this.parameters.shapes; + + return toJSON$3( shapes, data ); + + } + +} + +function toJSON$3( shapes, data ) { + + data.shapes = []; + + if ( Array.isArray( shapes ) ) { + + for ( let i = 0, l = shapes.length; i < l; i ++ ) { + + const shape = shapes[ i ]; + + data.shapes.push( shape.uuid ); + + } + + } else { + + data.shapes.push( shapes.uuid ); + + } + + return data; + +} + +class SphereBufferGeometry extends BufferGeometry { + + constructor( radius = 1, widthSegments = 8, heightSegments = 6, phiStart = 0, phiLength = Math.PI * 2, thetaStart = 0, thetaLength = Math.PI ) { + + super(); + this.type = 'SphereBufferGeometry'; + + this.parameters = { + radius: radius, + widthSegments: widthSegments, + heightSegments: heightSegments, + phiStart: phiStart, + phiLength: phiLength, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + widthSegments = Math.max( 3, Math.floor( widthSegments ) ); + heightSegments = Math.max( 2, Math.floor( heightSegments ) ); + + const thetaEnd = Math.min( thetaStart + thetaLength, Math.PI ); + + let index = 0; + const grid = []; + + const vertex = new Vector3(); + const normal = new Vector3(); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // generate vertices, normals and uvs + + for ( let iy = 0; iy <= heightSegments; iy ++ ) { + + const verticesRow = []; + + const v = iy / heightSegments; + + // special case for the poles + + let uOffset = 0; + + if ( iy == 0 && thetaStart == 0 ) { + + uOffset = 0.5 / widthSegments; + + } else if ( iy == heightSegments && thetaEnd == Math.PI ) { + + uOffset = - 0.5 / widthSegments; + + } + + for ( let ix = 0; ix <= widthSegments; ix ++ ) { + + const u = ix / widthSegments; + + // vertex + + vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength ); + vertex.y = radius * Math.cos( thetaStart + v * thetaLength ); + vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + normal.copy( vertex ).normalize(); + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( u + uOffset, 1 - v ); + + verticesRow.push( index ++ ); + + } + + grid.push( verticesRow ); + + } + + // indices + + for ( let iy = 0; iy < heightSegments; iy ++ ) { + + for ( let ix = 0; ix < widthSegments; ix ++ ) { + + const a = grid[ iy ][ ix + 1 ]; + const b = grid[ iy ][ ix ]; + const c = grid[ iy + 1 ][ ix ]; + const d = grid[ iy + 1 ][ ix + 1 ]; + + if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d ); + if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + +} + +class SphereGeometry extends Geometry { + + constructor( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) { + + super(); + this.type = 'SphereGeometry'; + + this.parameters = { + radius: radius, + widthSegments: widthSegments, + heightSegments: heightSegments, + phiStart: phiStart, + phiLength: phiLength, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + this.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) ); + this.mergeVertices(); + + } + +} + +class TetrahedronBufferGeometry extends PolyhedronBufferGeometry { + + constructor( radius = 1, detail = 0 ) { + + const vertices = [ + 1, 1, 1, - 1, - 1, 1, - 1, 1, - 1, 1, - 1, - 1 + ]; + + const indices = [ + 2, 1, 0, 0, 3, 2, 1, 3, 0, 2, 3, 1 + ]; + + super( vertices, indices, radius, detail ); + + this.type = 'TetrahedronBufferGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + +} + +class TetrahedronGeometry extends Geometry { + + constructor( radius, detail ) { + + super(); + this.type = 'TetrahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) ); + this.mergeVertices(); + + } + +} + +/** + * Text = 3D Text + * + * parameters = { + * font: , // font + * + * size: , // size of the text + * height: , // thickness to extrude text + * curveSegments: , // number of points on the curves + * + * bevelEnabled: , // turn on bevel + * bevelThickness: , // how deep into text bevel goes + * bevelSize: , // how far from text outline (including bevelOffset) is bevel + * bevelOffset: // how far from text outline does bevel start + * } + */ + +class TextBufferGeometry extends ExtrudeBufferGeometry { + + constructor( text, parameters = {} ) { + + const font = parameters.font; + + if ( ! ( font && font.isFont ) ) { + + console.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' ); + return new BufferGeometry(); + + } + + const shapes = font.generateShapes( text, parameters.size ); + + // translate parameters to ExtrudeGeometry API + + parameters.depth = parameters.height !== undefined ? parameters.height : 50; + + // defaults + + if ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10; + if ( parameters.bevelSize === undefined ) parameters.bevelSize = 8; + if ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false; + + super( shapes, parameters ); + + this.type = 'TextBufferGeometry'; + + } + +} + +/** + * Text = 3D Text + * + * parameters = { + * font: , // font + * + * size: , // size of the text + * height: , // thickness to extrude text + * curveSegments: , // number of points on the curves + * + * bevelEnabled: , // turn on bevel + * bevelThickness: , // how deep into text bevel goes + * bevelSize: , // how far from text outline (including bevelOffset) is bevel + * bevelOffset: // how far from text outline does bevel start + * } + */ + +class TextGeometry extends Geometry { + + constructor( text, parameters ) { + + super(); + this.type = 'TextGeometry'; + + this.parameters = { + text: text, + parameters: parameters + }; + + this.fromBufferGeometry( new TextBufferGeometry( text, parameters ) ); + this.mergeVertices(); + + } + +} + +class TorusBufferGeometry extends BufferGeometry { + + constructor( radius = 1, tube = 0.4, radialSegments = 8, tubularSegments = 6, arc = Math.PI * 2 ) { + + super(); + this.type = 'TorusBufferGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + radialSegments: radialSegments, + tubularSegments: tubularSegments, + arc: arc + }; + + radialSegments = Math.floor( radialSegments ); + tubularSegments = Math.floor( tubularSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + const center = new Vector3(); + const vertex = new Vector3(); + const normal = new Vector3(); + + // generate vertices, normals and uvs + + for ( let j = 0; j <= radialSegments; j ++ ) { + + for ( let i = 0; i <= tubularSegments; i ++ ) { + + const u = i / tubularSegments * arc; + const v = j / radialSegments * Math.PI * 2; + + // vertex + + vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u ); + vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u ); + vertex.z = tube * Math.sin( v ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal + + center.x = radius * Math.cos( u ); + center.y = radius * Math.sin( u ); + normal.subVectors( vertex, center ).normalize(); + + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( i / tubularSegments ); + uvs.push( j / radialSegments ); + + } + + } + + // generate indices + + for ( let j = 1; j <= radialSegments; j ++ ) { + + for ( let i = 1; i <= tubularSegments; i ++ ) { + + // indices + + const a = ( tubularSegments + 1 ) * j + i - 1; + const b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1; + const c = ( tubularSegments + 1 ) * ( j - 1 ) + i; + const d = ( tubularSegments + 1 ) * j + i; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + } + +} + +class TorusGeometry extends Geometry { + + constructor( radius, tube, radialSegments, tubularSegments, arc ) { + + super(); + this.type = 'TorusGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + radialSegments: radialSegments, + tubularSegments: tubularSegments, + arc: arc + }; + + this.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) ); + this.mergeVertices(); + + } + +} + +class TorusKnotBufferGeometry extends BufferGeometry { + + constructor( radius = 1, tube = 0.4, tubularSegments = 64, radialSegments = 8, p = 2, q = 3 ) { + + super(); + this.type = 'TorusKnotBufferGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + tubularSegments: tubularSegments, + radialSegments: radialSegments, + p: p, + q: q + }; + + tubularSegments = Math.floor( tubularSegments ); + radialSegments = Math.floor( radialSegments ); + + // buffers + + const indices = []; + const vertices = []; + const normals = []; + const uvs = []; + + // helper variables + + const vertex = new Vector3(); + const normal = new Vector3(); + + const P1 = new Vector3(); + const P2 = new Vector3(); + + const B = new Vector3(); + const T = new Vector3(); + const N = new Vector3(); + + // generate vertices, normals and uvs + + for ( let i = 0; i <= tubularSegments; ++ i ) { + + // the radian "u" is used to calculate the position on the torus curve of the current tubular segement + + const u = i / tubularSegments * p * Math.PI * 2; + + // now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead. + // these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions + + calculatePositionOnCurve( u, p, q, radius, P1 ); + calculatePositionOnCurve( u + 0.01, p, q, radius, P2 ); + + // calculate orthonormal basis + + T.subVectors( P2, P1 ); + N.addVectors( P2, P1 ); + B.crossVectors( T, N ); + N.crossVectors( B, T ); + + // normalize B, N. T can be ignored, we don't use it + + B.normalize(); + N.normalize(); + + for ( let j = 0; j <= radialSegments; ++ j ) { + + // now calculate the vertices. they are nothing more than an extrusion of the torus curve. + // because we extrude a shape in the xy-plane, there is no need to calculate a z-value. + + const v = j / radialSegments * Math.PI * 2; + const cx = - tube * Math.cos( v ); + const cy = tube * Math.sin( v ); + + // now calculate the final vertex position. + // first we orient the extrusion with our basis vectos, then we add it to the current position on the curve + + vertex.x = P1.x + ( cx * N.x + cy * B.x ); + vertex.y = P1.y + ( cx * N.y + cy * B.y ); + vertex.z = P1.z + ( cx * N.z + cy * B.z ); + + vertices.push( vertex.x, vertex.y, vertex.z ); + + // normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal) + + normal.subVectors( vertex, P1 ).normalize(); + + normals.push( normal.x, normal.y, normal.z ); + + // uv + + uvs.push( i / tubularSegments ); + uvs.push( j / radialSegments ); + + } + + } + + // generate indices + + for ( let j = 1; j <= tubularSegments; j ++ ) { + + for ( let i = 1; i <= radialSegments; i ++ ) { + + // indices + + const a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 ); + const b = ( radialSegments + 1 ) * j + ( i - 1 ); + const c = ( radialSegments + 1 ) * j + i; + const d = ( radialSegments + 1 ) * ( j - 1 ) + i; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + // this function calculates the current position on the torus curve + + function calculatePositionOnCurve( u, p, q, radius, position ) { + + const cu = Math.cos( u ); + const su = Math.sin( u ); + const quOverP = q / p * u; + const cs = Math.cos( quOverP ); + + position.x = radius * ( 2 + cs ) * 0.5 * cu; + position.y = radius * ( 2 + cs ) * su * 0.5; + position.z = radius * Math.sin( quOverP ) * 0.5; + + } + + } + +} + +class TorusKnotGeometry extends Geometry { + + constructor( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) { + + super(); + this.type = 'TorusKnotGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + tubularSegments: tubularSegments, + radialSegments: radialSegments, + p: p, + q: q + }; + + if ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' ); + + this.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) ); + this.mergeVertices(); + + } + +} + +class TubeBufferGeometry extends BufferGeometry { + + constructor( path, tubularSegments = 64, radius = 1, radialSegments = 8, closed = false ) { + + super(); + this.type = 'TubeBufferGeometry'; + + this.parameters = { + path: path, + tubularSegments: tubularSegments, + radius: radius, + radialSegments: radialSegments, + closed: closed + }; + + const frames = path.computeFrenetFrames( tubularSegments, closed ); + + // expose internals + + this.tangents = frames.tangents; + this.normals = frames.normals; + this.binormals = frames.binormals; + + // helper variables + + const vertex = new Vector3(); + const normal = new Vector3(); + const uv = new Vector2(); + let P = new Vector3(); + + // buffer + + const vertices = []; + const normals = []; + const uvs = []; + const indices = []; + + // create buffer data + + generateBufferData(); + + // build geometry + + this.setIndex( indices ); + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + this.setAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) ); + this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) ); + + // functions + + function generateBufferData() { + + for ( let i = 0; i < tubularSegments; i ++ ) { + + generateSegment( i ); + + } + + // if the geometry is not closed, generate the last row of vertices and normals + // at the regular position on the given path + // + // if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ) + + generateSegment( ( closed === false ) ? tubularSegments : 0 ); + + // uvs are generated in a separate function. + // this makes it easy compute correct values for closed geometries + + generateUVs(); + + // finally create faces + + generateIndices(); + + } + + function generateSegment( i ) { + + // we use getPointAt to sample evenly distributed points from the given path + + P = path.getPointAt( i / tubularSegments, P ); + + // retrieve corresponding normal and binormal + + const N = frames.normals[ i ]; + const B = frames.binormals[ i ]; + + // generate normals and vertices for the current segment + + for ( let j = 0; j <= radialSegments; j ++ ) { + + const v = j / radialSegments * Math.PI * 2; + + const sin = Math.sin( v ); + const cos = - Math.cos( v ); + + // normal + + normal.x = ( cos * N.x + sin * B.x ); + normal.y = ( cos * N.y + sin * B.y ); + normal.z = ( cos * N.z + sin * B.z ); + normal.normalize(); + + normals.push( normal.x, normal.y, normal.z ); + + // vertex + + vertex.x = P.x + radius * normal.x; + vertex.y = P.y + radius * normal.y; + vertex.z = P.z + radius * normal.z; + + vertices.push( vertex.x, vertex.y, vertex.z ); + + } + + } + + function generateIndices() { + + for ( let j = 1; j <= tubularSegments; j ++ ) { + + for ( let i = 1; i <= radialSegments; i ++ ) { + + const a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 ); + const b = ( radialSegments + 1 ) * j + ( i - 1 ); + const c = ( radialSegments + 1 ) * j + i; + const d = ( radialSegments + 1 ) * ( j - 1 ) + i; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + } + + function generateUVs() { + + for ( let i = 0; i <= tubularSegments; i ++ ) { + + for ( let j = 0; j <= radialSegments; j ++ ) { + + uv.x = i / tubularSegments; + uv.y = j / radialSegments; + + uvs.push( uv.x, uv.y ); + + } + + } + + } + + } + toJSON() { + + const data = BufferGeometry.prototype.toJSON.call( this ); + + data.path = this.parameters.path.toJSON(); + + return data; + + } + +} + +class TubeGeometry extends Geometry { + + constructor( path, tubularSegments, radius, radialSegments, closed, taper ) { + + super(); + this.type = 'TubeGeometry'; + + this.parameters = { + path: path, + tubularSegments: tubularSegments, + radius: radius, + radialSegments: radialSegments, + closed: closed + }; + + if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' ); + + const bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ); + + // expose internals + + this.tangents = bufferGeometry.tangents; + this.normals = bufferGeometry.normals; + this.binormals = bufferGeometry.binormals; + + // create geometry + + this.fromBufferGeometry( bufferGeometry ); + this.mergeVertices(); + + } + +} + +class WireframeGeometry extends BufferGeometry { + + constructor( geometry ) { + + super(); + this.type = 'WireframeGeometry'; + + // buffer + + const vertices = []; + + // helper variables + + const edge = [ 0, 0 ], edges = {}; + const keys = [ 'a', 'b', 'c' ]; + + // different logic for Geometry and BufferGeometry + + if ( geometry && geometry.isGeometry ) { + + // create a data structure that contains all edges without duplicates + + const faces = geometry.faces; + + for ( let i = 0, l = faces.length; i < l; i ++ ) { + + const face = faces[ i ]; + + for ( let j = 0; j < 3; j ++ ) { + + const edge1 = face[ keys[ j ] ]; + const edge2 = face[ keys[ ( j + 1 ) % 3 ] ]; + edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates + edge[ 1 ] = Math.max( edge1, edge2 ); + + const key = edge[ 0 ] + ',' + edge[ 1 ]; + + if ( edges[ key ] === undefined ) { + + edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] }; + + } + + } + + } + + // generate vertices + + for ( const key in edges ) { + + const e = edges[ key ]; + + let vertex = geometry.vertices[ e.index1 ]; + vertices.push( vertex.x, vertex.y, vertex.z ); + + vertex = geometry.vertices[ e.index2 ]; + vertices.push( vertex.x, vertex.y, vertex.z ); + + } + + } else if ( geometry && geometry.isBufferGeometry ) { + + const vertex = new Vector3(); + + if ( geometry.index !== null ) { + + // indexed BufferGeometry + + const position = geometry.attributes.position; + const indices = geometry.index; + let groups = geometry.groups; + + if ( groups.length === 0 ) { + + groups = [ { start: 0, count: indices.count, materialIndex: 0 } ]; + + } + + // create a data structure that contains all eges without duplicates + + for ( let o = 0, ol = groups.length; o < ol; ++ o ) { + + const group = groups[ o ]; + + const start = group.start; + const count = group.count; + + for ( let i = start, l = ( start + count ); i < l; i += 3 ) { + + for ( let j = 0; j < 3; j ++ ) { + + const edge1 = indices.getX( i + j ); + const edge2 = indices.getX( i + ( j + 1 ) % 3 ); + edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates + edge[ 1 ] = Math.max( edge1, edge2 ); + + const key = edge[ 0 ] + ',' + edge[ 1 ]; + + if ( edges[ key ] === undefined ) { + + edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] }; + + } + + } + + } + + } + + // generate vertices + + for ( const key in edges ) { + + const e = edges[ key ]; + + vertex.fromBufferAttribute( position, e.index1 ); + vertices.push( vertex.x, vertex.y, vertex.z ); + + vertex.fromBufferAttribute( position, e.index2 ); + vertices.push( vertex.x, vertex.y, vertex.z ); + + } + + } else { + + // non-indexed BufferGeometry + + const position = geometry.attributes.position; + + for ( let i = 0, l = ( position.count / 3 ); i < l; i ++ ) { + + for ( let j = 0; j < 3; j ++ ) { + + // three edges per triangle, an edge is represented as (index1, index2) + // e.g. the first triangle has the following edges: (0,1),(1,2),(2,0) + + const index1 = 3 * i + j; + vertex.fromBufferAttribute( position, index1 ); + vertices.push( vertex.x, vertex.y, vertex.z ); + + const index2 = 3 * i + ( ( j + 1 ) % 3 ); + vertex.fromBufferAttribute( position, index2 ); + vertices.push( vertex.x, vertex.y, vertex.z ); + + } + + } + + } + + } + + // build geometry + + this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + + } + +} + +var Geometries = /*#__PURE__*/Object.freeze({ + __proto__: null, + BoxGeometry: BoxGeometry, + BoxBufferGeometry: BoxBufferGeometry, + CircleGeometry: CircleGeometry, + CircleBufferGeometry: CircleBufferGeometry, + ConeGeometry: ConeGeometry, + ConeBufferGeometry: ConeBufferGeometry, + CylinderGeometry: CylinderGeometry, + CylinderBufferGeometry: CylinderBufferGeometry, + DodecahedronGeometry: DodecahedronGeometry, + DodecahedronBufferGeometry: DodecahedronBufferGeometry, + EdgesGeometry: EdgesGeometry, + ExtrudeGeometry: ExtrudeGeometry, + ExtrudeBufferGeometry: ExtrudeBufferGeometry, + IcosahedronGeometry: IcosahedronGeometry, + IcosahedronBufferGeometry: IcosahedronBufferGeometry, + LatheGeometry: LatheGeometry, + LatheBufferGeometry: LatheBufferGeometry, + OctahedronGeometry: OctahedronGeometry, + OctahedronBufferGeometry: OctahedronBufferGeometry, + ParametricGeometry: ParametricGeometry, + ParametricBufferGeometry: ParametricBufferGeometry, + PlaneGeometry: PlaneGeometry, + PlaneBufferGeometry: PlaneBufferGeometry, + PolyhedronGeometry: PolyhedronGeometry, + PolyhedronBufferGeometry: PolyhedronBufferGeometry, + RingGeometry: RingGeometry, + RingBufferGeometry: RingBufferGeometry, + ShapeGeometry: ShapeGeometry, + ShapeBufferGeometry: ShapeBufferGeometry, + SphereGeometry: SphereGeometry, + SphereBufferGeometry: SphereBufferGeometry, + TetrahedronGeometry: TetrahedronGeometry, + TetrahedronBufferGeometry: TetrahedronBufferGeometry, + TextGeometry: TextGeometry, + TextBufferGeometry: TextBufferGeometry, + TorusGeometry: TorusGeometry, + TorusBufferGeometry: TorusBufferGeometry, + TorusKnotGeometry: TorusKnotGeometry, + TorusKnotBufferGeometry: TorusKnotBufferGeometry, + TubeGeometry: TubeGeometry, + TubeBufferGeometry: TubeBufferGeometry, + WireframeGeometry: WireframeGeometry +}); + +/** + * parameters = { + * color: + * } + */ + +function ShadowMaterial( parameters ) { + + Material.call( this ); + + this.type = 'ShadowMaterial'; + + this.color = new Color( 0x000000 ); + this.transparent = true; + + this.setValues( parameters ); + +} + +ShadowMaterial.prototype = Object.create( Material.prototype ); +ShadowMaterial.prototype.constructor = ShadowMaterial; + +ShadowMaterial.prototype.isShadowMaterial = true; + +ShadowMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + return this; + +}; + +function RawShaderMaterial( parameters ) { + + ShaderMaterial.call( this, parameters ); + + this.type = 'RawShaderMaterial'; + +} + +RawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype ); +RawShaderMaterial.prototype.constructor = RawShaderMaterial; + +RawShaderMaterial.prototype.isRawShaderMaterial = true; + +/** + * parameters = { + * color: , + * roughness: , + * metalness: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * roughnessMap: new THREE.Texture( ), + * + * metalnessMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * envMapIntensity: + * + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + +function MeshStandardMaterial( parameters ) { + + Material.call( this ); + + this.defines = { 'STANDARD': '' }; + + this.type = 'MeshStandardMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + this.roughness = 1.0; + this.metalness = 0.0; + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.roughnessMap = null; + + this.metalnessMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.envMapIntensity = 1.0; + + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.vertexTangents = false; + + this.setValues( parameters ); + +} + +MeshStandardMaterial.prototype = Object.create( Material.prototype ); +MeshStandardMaterial.prototype.constructor = MeshStandardMaterial; + +MeshStandardMaterial.prototype.isMeshStandardMaterial = true; + +MeshStandardMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.defines = { 'STANDARD': '' }; + + this.color.copy( source.color ); + this.roughness = source.roughness; + this.metalness = source.metalness; + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.roughnessMap = source.roughnessMap; + + this.metalnessMap = source.metalnessMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.envMapIntensity = source.envMapIntensity; + + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + this.vertexTangents = source.vertexTangents; + + return this; + +}; + +/** + * parameters = { + * clearcoat: , + * clearcoatMap: new THREE.Texture( ), + * clearcoatRoughness: , + * clearcoatRoughnessMap: new THREE.Texture( ), + * clearcoatNormalScale: , + * clearcoatNormalMap: new THREE.Texture( ), + * + * reflectivity: , + * ior: , + * + * sheen: , + * + * transmission: , + * transmissionMap: new THREE.Texture( ) + * } + */ + +function MeshPhysicalMaterial( parameters ) { + + MeshStandardMaterial.call( this ); + + this.defines = { + + 'STANDARD': '', + 'PHYSICAL': '' + + }; + + this.type = 'MeshPhysicalMaterial'; + + this.clearcoat = 0.0; + this.clearcoatMap = null; + this.clearcoatRoughness = 0.0; + this.clearcoatRoughnessMap = null; + this.clearcoatNormalScale = new Vector2( 1, 1 ); + this.clearcoatNormalMap = null; + + this.reflectivity = 0.5; // maps to F0 = 0.04 + + Object.defineProperty( this, 'ior', { + get: function () { + + return ( 1 + 0.4 * this.reflectivity ) / ( 1 - 0.4 * this.reflectivity ); + + }, + set: function ( ior ) { + + this.reflectivity = MathUtils.clamp( 2.5 * ( ior - 1 ) / ( ior + 1 ), 0, 1 ); + + } + } ); + + this.sheen = null; // null will disable sheen bsdf + + this.transmission = 0.0; + this.transmissionMap = null; + + this.setValues( parameters ); + +} + +MeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype ); +MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial; + +MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true; + +MeshPhysicalMaterial.prototype.copy = function ( source ) { + + MeshStandardMaterial.prototype.copy.call( this, source ); + + this.defines = { + + 'STANDARD': '', + 'PHYSICAL': '' + + }; + + this.clearcoat = source.clearcoat; + this.clearcoatMap = source.clearcoatMap; + this.clearcoatRoughness = source.clearcoatRoughness; + this.clearcoatRoughnessMap = source.clearcoatRoughnessMap; + this.clearcoatNormalMap = source.clearcoatNormalMap; + this.clearcoatNormalScale.copy( source.clearcoatNormalScale ); + + this.reflectivity = source.reflectivity; + + if ( source.sheen ) { + + this.sheen = ( this.sheen || new Color() ).copy( source.sheen ); + + } else { + + this.sheen = null; + + } + + this.transmission = source.transmission; + this.transmissionMap = source.transmissionMap; + + return this; + +}; + +/** + * parameters = { + * color: , + * specular: , + * shininess: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.MultiplyOperation, + * reflectivity: , + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + +function MeshPhongMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshPhongMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + this.specular = new Color( 0x111111 ); + this.shininess = 30; + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.setValues( parameters ); + +} + +MeshPhongMaterial.prototype = Object.create( Material.prototype ); +MeshPhongMaterial.prototype.constructor = MeshPhongMaterial; + +MeshPhongMaterial.prototype.isMeshPhongMaterial = true; + +MeshPhongMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + this.specular.copy( source.specular ); + this.shininess = source.shininess; + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + return this; + +}; + +/** + * parameters = { + * color: , + * + * map: new THREE.Texture( ), + * gradientMap: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * alphaMap: new THREE.Texture( ), + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + +function MeshToonMaterial( parameters ) { + + Material.call( this ); + + this.defines = { 'TOON': '' }; + + this.type = 'MeshToonMaterial'; + + this.color = new Color( 0xffffff ); + + this.map = null; + this.gradientMap = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.alphaMap = null; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.setValues( parameters ); + +} + +MeshToonMaterial.prototype = Object.create( Material.prototype ); +MeshToonMaterial.prototype.constructor = MeshToonMaterial; + +MeshToonMaterial.prototype.isMeshToonMaterial = true; + +MeshToonMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.map = source.map; + this.gradientMap = source.gradientMap; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.alphaMap = source.alphaMap; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + return this; + +}; + +/** + * parameters = { + * opacity: , + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * wireframe: , + * wireframeLinewidth: + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + +function MeshNormalMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshNormalMaterial'; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.setValues( parameters ); + +} + +MeshNormalMaterial.prototype = Object.create( Material.prototype ); +MeshNormalMaterial.prototype.constructor = MeshNormalMaterial; + +MeshNormalMaterial.prototype.isMeshNormalMaterial = true; + +MeshNormalMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + return this; + +}; + +/** + * parameters = { + * color: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.Multiply, + * reflectivity: , + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + +function MeshLambertMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshLambertMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.setValues( parameters ); + +} + +MeshLambertMaterial.prototype = Object.create( Material.prototype ); +MeshLambertMaterial.prototype.constructor = MeshLambertMaterial; + +MeshLambertMaterial.prototype.isMeshLambertMaterial = true; + +MeshLambertMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + return this; + +}; + +/** + * parameters = { + * color: , + * opacity: , + * + * matcap: new THREE.Texture( ), + * + * map: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalMapType: THREE.TangentSpaceNormalMap, + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * alphaMap: new THREE.Texture( ), + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + +function MeshMatcapMaterial( parameters ) { + + Material.call( this ); + + this.defines = { 'MATCAP': '' }; + + this.type = 'MeshMatcapMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + + this.matcap = null; + + this.map = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalMapType = TangentSpaceNormalMap; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.alphaMap = null; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.setValues( parameters ); + +} + +MeshMatcapMaterial.prototype = Object.create( Material.prototype ); +MeshMatcapMaterial.prototype.constructor = MeshMatcapMaterial; + +MeshMatcapMaterial.prototype.isMeshMatcapMaterial = true; + +MeshMatcapMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.defines = { 'MATCAP': '' }; + + this.color.copy( source.color ); + + this.matcap = source.matcap; + + this.map = source.map; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalMapType = source.normalMapType; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.alphaMap = source.alphaMap; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + return this; + +}; + +/** + * parameters = { + * color: , + * opacity: , + * + * linewidth: , + * + * scale: , + * dashSize: , + * gapSize: + * } + */ + +function LineDashedMaterial( parameters ) { + + LineBasicMaterial.call( this ); + + this.type = 'LineDashedMaterial'; + + this.scale = 1; + this.dashSize = 3; + this.gapSize = 1; + + this.setValues( parameters ); + +} + +LineDashedMaterial.prototype = Object.create( LineBasicMaterial.prototype ); +LineDashedMaterial.prototype.constructor = LineDashedMaterial; + +LineDashedMaterial.prototype.isLineDashedMaterial = true; + +LineDashedMaterial.prototype.copy = function ( source ) { + + LineBasicMaterial.prototype.copy.call( this, source ); + + this.scale = source.scale; + this.dashSize = source.dashSize; + this.gapSize = source.gapSize; + + return this; + +}; + +var Materials = /*#__PURE__*/Object.freeze({ + __proto__: null, + ShadowMaterial: ShadowMaterial, + SpriteMaterial: SpriteMaterial, + RawShaderMaterial: RawShaderMaterial, + ShaderMaterial: ShaderMaterial, + PointsMaterial: PointsMaterial, + MeshPhysicalMaterial: MeshPhysicalMaterial, + MeshStandardMaterial: MeshStandardMaterial, + MeshPhongMaterial: MeshPhongMaterial, + MeshToonMaterial: MeshToonMaterial, + MeshNormalMaterial: MeshNormalMaterial, + MeshLambertMaterial: MeshLambertMaterial, + MeshDepthMaterial: MeshDepthMaterial, + MeshDistanceMaterial: MeshDistanceMaterial, + MeshBasicMaterial: MeshBasicMaterial, + MeshMatcapMaterial: MeshMatcapMaterial, + LineDashedMaterial: LineDashedMaterial, + LineBasicMaterial: LineBasicMaterial, + Material: Material +}); + +const AnimationUtils = { + + // same as Array.prototype.slice, but also works on typed arrays + arraySlice: function ( array, from, to ) { + + if ( AnimationUtils.isTypedArray( array ) ) { + + // in ios9 array.subarray(from, undefined) will return empty array + // but array.subarray(from) or array.subarray(from, len) is correct + return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) ); + + } + + return array.slice( from, to ); + + }, + + // converts an array to a specific type + convertArray: function ( array, type, forceClone ) { + + if ( ! array || // let 'undefined' and 'null' pass + ! forceClone && array.constructor === type ) return array; + + if ( typeof type.BYTES_PER_ELEMENT === 'number' ) { + + return new type( array ); // create typed array + + } + + return Array.prototype.slice.call( array ); // create Array + + }, + + isTypedArray: function ( object ) { + + return ArrayBuffer.isView( object ) && + ! ( object instanceof DataView ); + + }, + + // returns an array by which times and values can be sorted + getKeyframeOrder: function ( times ) { + + function compareTime( i, j ) { + + return times[ i ] - times[ j ]; + + } + + const n = times.length; + const result = new Array( n ); + for ( let i = 0; i !== n; ++ i ) result[ i ] = i; + + result.sort( compareTime ); + + return result; + + }, + + // uses the array previously returned by 'getKeyframeOrder' to sort data + sortedArray: function ( values, stride, order ) { + + const nValues = values.length; + const result = new values.constructor( nValues ); + + for ( let i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) { + + const srcOffset = order[ i ] * stride; + + for ( let j = 0; j !== stride; ++ j ) { + + result[ dstOffset ++ ] = values[ srcOffset + j ]; + + } + + } + + return result; + + }, + + // function for parsing AOS keyframe formats + flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) { + + let i = 1, key = jsonKeys[ 0 ]; + + while ( key !== undefined && key[ valuePropertyName ] === undefined ) { + + key = jsonKeys[ i ++ ]; + + } + + if ( key === undefined ) return; // no data + + let value = key[ valuePropertyName ]; + if ( value === undefined ) return; // no data + + if ( Array.isArray( value ) ) { + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + values.push.apply( values, value ); // push all elements + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } else if ( value.toArray !== undefined ) { + + // ...assume THREE.Math-ish + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + value.toArray( values, values.length ); + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } else { + + // otherwise push as-is + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + values.push( value ); + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } + + }, + + subclip: function ( sourceClip, name, startFrame, endFrame, fps = 30 ) { + + const clip = sourceClip.clone(); + + clip.name = name; + + const tracks = []; + + for ( let i = 0; i < clip.tracks.length; ++ i ) { + + const track = clip.tracks[ i ]; + const valueSize = track.getValueSize(); + + const times = []; + const values = []; + + for ( let j = 0; j < track.times.length; ++ j ) { + + const frame = track.times[ j ] * fps; + + if ( frame < startFrame || frame >= endFrame ) continue; + + times.push( track.times[ j ] ); + + for ( let k = 0; k < valueSize; ++ k ) { + + values.push( track.values[ j * valueSize + k ] ); + + } + + } + + if ( times.length === 0 ) continue; + + track.times = AnimationUtils.convertArray( times, track.times.constructor ); + track.values = AnimationUtils.convertArray( values, track.values.constructor ); + + tracks.push( track ); + + } + + clip.tracks = tracks; + + // find minimum .times value across all tracks in the trimmed clip + + let minStartTime = Infinity; + + for ( let i = 0; i < clip.tracks.length; ++ i ) { + + if ( minStartTime > clip.tracks[ i ].times[ 0 ] ) { + + minStartTime = clip.tracks[ i ].times[ 0 ]; + + } + + } + + // shift all tracks such that clip begins at t=0 + + for ( let i = 0; i < clip.tracks.length; ++ i ) { + + clip.tracks[ i ].shift( - 1 * minStartTime ); + + } + + clip.resetDuration(); + + return clip; + + }, + + makeClipAdditive: function ( targetClip, referenceFrame = 0, referenceClip = targetClip, fps = 30 ) { + + if ( fps <= 0 ) fps = 30; + + const numTracks = referenceClip.tracks.length; + const referenceTime = referenceFrame / fps; + + // Make each track's values relative to the values at the reference frame + for ( let i = 0; i < numTracks; ++ i ) { + + const referenceTrack = referenceClip.tracks[ i ]; + const referenceTrackType = referenceTrack.ValueTypeName; + + // Skip this track if it's non-numeric + if ( referenceTrackType === 'bool' || referenceTrackType === 'string' ) continue; + + // Find the track in the target clip whose name and type matches the reference track + const targetTrack = targetClip.tracks.find( function ( track ) { + + return track.name === referenceTrack.name + && track.ValueTypeName === referenceTrackType; + + } ); + + if ( targetTrack === undefined ) continue; + + let referenceOffset = 0; + const referenceValueSize = referenceTrack.getValueSize(); + + if ( referenceTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline ) { + + referenceOffset = referenceValueSize / 3; + + } + + let targetOffset = 0; + const targetValueSize = targetTrack.getValueSize(); + + if ( targetTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline ) { + + targetOffset = targetValueSize / 3; + + } + + const lastIndex = referenceTrack.times.length - 1; + let referenceValue; + + // Find the value to subtract out of the track + if ( referenceTime <= referenceTrack.times[ 0 ] ) { + + // Reference frame is earlier than the first keyframe, so just use the first keyframe + const startIndex = referenceOffset; + const endIndex = referenceValueSize - referenceOffset; + referenceValue = AnimationUtils.arraySlice( referenceTrack.values, startIndex, endIndex ); + + } else if ( referenceTime >= referenceTrack.times[ lastIndex ] ) { + + // Reference frame is after the last keyframe, so just use the last keyframe + const startIndex = lastIndex * referenceValueSize + referenceOffset; + const endIndex = startIndex + referenceValueSize - referenceOffset; + referenceValue = AnimationUtils.arraySlice( referenceTrack.values, startIndex, endIndex ); + + } else { + + // Interpolate to the reference value + const interpolant = referenceTrack.createInterpolant(); + const startIndex = referenceOffset; + const endIndex = referenceValueSize - referenceOffset; + interpolant.evaluate( referenceTime ); + referenceValue = AnimationUtils.arraySlice( interpolant.resultBuffer, startIndex, endIndex ); + + } + + // Conjugate the quaternion + if ( referenceTrackType === 'quaternion' ) { + + const referenceQuat = new Quaternion().fromArray( referenceValue ).normalize().conjugate(); + referenceQuat.toArray( referenceValue ); + + } + + // Subtract the reference value from all of the track values + + const numTimes = targetTrack.times.length; + for ( let j = 0; j < numTimes; ++ j ) { + + const valueStart = j * targetValueSize + targetOffset; + + if ( referenceTrackType === 'quaternion' ) { + + // Multiply the conjugate for quaternion track types + Quaternion.multiplyQuaternionsFlat( + targetTrack.values, + valueStart, + referenceValue, + 0, + targetTrack.values, + valueStart + ); + + } else { + + const valueEnd = targetValueSize - targetOffset * 2; + + // Subtract each value for all other numeric track types + for ( let k = 0; k < valueEnd; ++ k ) { + + targetTrack.values[ valueStart + k ] -= referenceValue[ k ]; + + } + + } + + } + + } + + targetClip.blendMode = AdditiveAnimationBlendMode; + + return targetClip; + + } + +}; + +/** + * Abstract base class of interpolants over parametric samples. + * + * The parameter domain is one dimensional, typically the time or a path + * along a curve defined by the data. + * + * The sample values can have any dimensionality and derived classes may + * apply special interpretations to the data. + * + * This class provides the interval seek in a Template Method, deferring + * the actual interpolation to derived classes. + * + * Time complexity is O(1) for linear access crossing at most two points + * and O(log N) for random access, where N is the number of positions. + * + * References: + * + * http://www.oodesign.com/template-method-pattern.html + * + */ + +function Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + this.parameterPositions = parameterPositions; + this._cachedIndex = 0; + + this.resultBuffer = resultBuffer !== undefined ? + resultBuffer : new sampleValues.constructor( sampleSize ); + this.sampleValues = sampleValues; + this.valueSize = sampleSize; + +} + +Object.assign( Interpolant.prototype, { + + evaluate: function ( t ) { + + const pp = this.parameterPositions; + let i1 = this._cachedIndex, + t1 = pp[ i1 ], + t0 = pp[ i1 - 1 ]; + + validate_interval: { + + seek: { + + let right; + + linear_scan: { + + //- See http://jsperf.com/comparison-to-undefined/3 + //- slower code: + //- + //- if ( t >= t1 || t1 === undefined ) { + forward_scan: if ( ! ( t < t1 ) ) { + + for ( let giveUpAt = i1 + 2; ; ) { + + if ( t1 === undefined ) { + + if ( t < t0 ) break forward_scan; + + // after end + + i1 = pp.length; + this._cachedIndex = i1; + return this.afterEnd_( i1 - 1, t, t0 ); + + } + + if ( i1 === giveUpAt ) break; // this loop + + t0 = t1; + t1 = pp[ ++ i1 ]; + + if ( t < t1 ) { + + // we have arrived at the sought interval + break seek; + + } + + } + + // prepare binary search on the right side of the index + right = pp.length; + break linear_scan; + + } + + //- slower code: + //- if ( t < t0 || t0 === undefined ) { + if ( ! ( t >= t0 ) ) { + + // looping? + + const t1global = pp[ 1 ]; + + if ( t < t1global ) { + + i1 = 2; // + 1, using the scan for the details + t0 = t1global; + + } + + // linear reverse scan + + for ( let giveUpAt = i1 - 2; ; ) { + + if ( t0 === undefined ) { + + // before start + + this._cachedIndex = 0; + return this.beforeStart_( 0, t, t1 ); + + } + + if ( i1 === giveUpAt ) break; // this loop + + t1 = t0; + t0 = pp[ -- i1 - 1 ]; + + if ( t >= t0 ) { + + // we have arrived at the sought interval + break seek; + + } + + } + + // prepare binary search on the left side of the index + right = i1; + i1 = 0; + break linear_scan; + + } + + // the interval is valid + + break validate_interval; + + } // linear scan + + // binary search + + while ( i1 < right ) { + + const mid = ( i1 + right ) >>> 1; + + if ( t < pp[ mid ] ) { + + right = mid; + + } else { + + i1 = mid + 1; + + } + + } + + t1 = pp[ i1 ]; + t0 = pp[ i1 - 1 ]; + + // check boundary cases, again + + if ( t0 === undefined ) { + + this._cachedIndex = 0; + return this.beforeStart_( 0, t, t1 ); + + } + + if ( t1 === undefined ) { + + i1 = pp.length; + this._cachedIndex = i1; + return this.afterEnd_( i1 - 1, t0, t ); + + } + + } // seek + + this._cachedIndex = i1; + + this.intervalChanged_( i1, t0, t1 ); + + } // validate_interval + + return this.interpolate_( i1, t0, t, t1 ); + + }, + + settings: null, // optional, subclass-specific settings structure + // Note: The indirection allows central control of many interpolants. + + // --- Protected interface + + DefaultSettings_: {}, + + getSettings_: function () { + + return this.settings || this.DefaultSettings_; + + }, + + copySampleValue_: function ( index ) { + + // copies a sample value to the result buffer + + const result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + offset = index * stride; + + for ( let i = 0; i !== stride; ++ i ) { + + result[ i ] = values[ offset + i ]; + + } + + return result; + + }, + + // Template methods for derived classes: + + interpolate_: function ( /* i1, t0, t, t1 */ ) { + + throw new Error( 'call to abstract method' ); + // implementations shall return this.resultBuffer + + }, + + intervalChanged_: function ( /* i1, t0, t1 */ ) { + + // empty + + } + +} ); + +// DECLARE ALIAS AFTER assign prototype +Object.assign( Interpolant.prototype, { + + //( 0, t, t0 ), returns this.resultBuffer + beforeStart_: Interpolant.prototype.copySampleValue_, + + //( N-1, tN-1, t ), returns this.resultBuffer + afterEnd_: Interpolant.prototype.copySampleValue_, + +} ); + +/** + * Fast and simple cubic spline interpolant. + * + * It was derived from a Hermitian construction setting the first derivative + * at each sample position to the linear slope between neighboring positions + * over their parameter interval. + */ + +function CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer ); + + this._weightPrev = - 0; + this._offsetPrev = - 0; + this._weightNext = - 0; + this._offsetNext = - 0; + +} + +CubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), { + + constructor: CubicInterpolant, + + DefaultSettings_: { + + endingStart: ZeroCurvatureEnding, + endingEnd: ZeroCurvatureEnding + + }, + + intervalChanged_: function ( i1, t0, t1 ) { + + const pp = this.parameterPositions; + let iPrev = i1 - 2, + iNext = i1 + 1, + + tPrev = pp[ iPrev ], + tNext = pp[ iNext ]; + + if ( tPrev === undefined ) { + + switch ( this.getSettings_().endingStart ) { + + case ZeroSlopeEnding: + + // f'(t0) = 0 + iPrev = i1; + tPrev = 2 * t0 - t1; + + break; + + case WrapAroundEnding: + + // use the other end of the curve + iPrev = pp.length - 2; + tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ]; + + break; + + default: // ZeroCurvatureEnding + + // f''(t0) = 0 a.k.a. Natural Spline + iPrev = i1; + tPrev = t1; + + } + + } + + if ( tNext === undefined ) { + + switch ( this.getSettings_().endingEnd ) { + + case ZeroSlopeEnding: + + // f'(tN) = 0 + iNext = i1; + tNext = 2 * t1 - t0; + + break; + + case WrapAroundEnding: + + // use the other end of the curve + iNext = 1; + tNext = t1 + pp[ 1 ] - pp[ 0 ]; + + break; + + default: // ZeroCurvatureEnding + + // f''(tN) = 0, a.k.a. Natural Spline + iNext = i1 - 1; + tNext = t0; + + } + + } + + const halfDt = ( t1 - t0 ) * 0.5, + stride = this.valueSize; + + this._weightPrev = halfDt / ( t0 - tPrev ); + this._weightNext = halfDt / ( tNext - t1 ); + this._offsetPrev = iPrev * stride; + this._offsetNext = iNext * stride; + + }, + + interpolate_: function ( i1, t0, t, t1 ) { + + const result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + o1 = i1 * stride, o0 = o1 - stride, + oP = this._offsetPrev, oN = this._offsetNext, + wP = this._weightPrev, wN = this._weightNext, + + p = ( t - t0 ) / ( t1 - t0 ), + pp = p * p, + ppp = pp * p; + + // evaluate polynomials + + const sP = - wP * ppp + 2 * wP * pp - wP * p; + const s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1; + const s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p; + const sN = wN * ppp - wN * pp; + + // combine data linearly + + for ( let i = 0; i !== stride; ++ i ) { + + result[ i ] = + sP * values[ oP + i ] + + s0 * values[ o0 + i ] + + s1 * values[ o1 + i ] + + sN * values[ oN + i ]; + + } + + return result; + + } + +} ); + +function LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer ); + +} + +LinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), { + + constructor: LinearInterpolant, + + interpolate_: function ( i1, t0, t, t1 ) { + + const result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + offset1 = i1 * stride, + offset0 = offset1 - stride, + + weight1 = ( t - t0 ) / ( t1 - t0 ), + weight0 = 1 - weight1; + + for ( let i = 0; i !== stride; ++ i ) { + + result[ i ] = + values[ offset0 + i ] * weight0 + + values[ offset1 + i ] * weight1; + + } + + return result; + + } + +} ); + +/** + * + * Interpolant that evaluates to the sample value at the position preceeding + * the parameter. + */ + +function DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer ); + +} + +DiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), { + + constructor: DiscreteInterpolant, + + interpolate_: function ( i1 /*, t0, t, t1 */ ) { + + return this.copySampleValue_( i1 - 1 ); + + } + +} ); + +function KeyframeTrack( name, times, values, interpolation ) { + + if ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' ); + if ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name ); + + this.name = name; + + this.times = AnimationUtils.convertArray( times, this.TimeBufferType ); + this.values = AnimationUtils.convertArray( values, this.ValueBufferType ); + + this.setInterpolation( interpolation || this.DefaultInterpolation ); + +} + +// Static methods + +Object.assign( KeyframeTrack, { + + // Serialization (in static context, because of constructor invocation + // and automatic invocation of .toJSON): + + toJSON: function ( track ) { + + const trackType = track.constructor; + + let json; + + // derived classes can define a static toJSON method + if ( trackType.toJSON !== undefined ) { + + json = trackType.toJSON( track ); + + } else { + + // by default, we assume the data can be serialized as-is + json = { + + 'name': track.name, + 'times': AnimationUtils.convertArray( track.times, Array ), + 'values': AnimationUtils.convertArray( track.values, Array ) + + }; + + const interpolation = track.getInterpolation(); + + if ( interpolation !== track.DefaultInterpolation ) { + + json.interpolation = interpolation; + + } + + } + + json.type = track.ValueTypeName; // mandatory + + return json; + + } + +} ); + +Object.assign( KeyframeTrack.prototype, { + + constructor: KeyframeTrack, + + TimeBufferType: Float32Array, + + ValueBufferType: Float32Array, + + DefaultInterpolation: InterpolateLinear, + + InterpolantFactoryMethodDiscrete: function ( result ) { + + return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result ); + + }, + + InterpolantFactoryMethodLinear: function ( result ) { + + return new LinearInterpolant( this.times, this.values, this.getValueSize(), result ); + + }, + + InterpolantFactoryMethodSmooth: function ( result ) { + + return new CubicInterpolant( this.times, this.values, this.getValueSize(), result ); + + }, + + setInterpolation: function ( interpolation ) { + + let factoryMethod; + + switch ( interpolation ) { + + case InterpolateDiscrete: + + factoryMethod = this.InterpolantFactoryMethodDiscrete; + + break; + + case InterpolateLinear: + + factoryMethod = this.InterpolantFactoryMethodLinear; + + break; + + case InterpolateSmooth: + + factoryMethod = this.InterpolantFactoryMethodSmooth; + + break; + + } + + if ( factoryMethod === undefined ) { + + const message = 'unsupported interpolation for ' + + this.ValueTypeName + ' keyframe track named ' + this.name; + + if ( this.createInterpolant === undefined ) { + + // fall back to default, unless the default itself is messed up + if ( interpolation !== this.DefaultInterpolation ) { + + this.setInterpolation( this.DefaultInterpolation ); + + } else { + + throw new Error( message ); // fatal, in this case + + } + + } + + console.warn( 'THREE.KeyframeTrack:', message ); + return this; + + } + + this.createInterpolant = factoryMethod; + + return this; + + }, + + getInterpolation: function () { + + switch ( this.createInterpolant ) { + + case this.InterpolantFactoryMethodDiscrete: + + return InterpolateDiscrete; + + case this.InterpolantFactoryMethodLinear: + + return InterpolateLinear; + + case this.InterpolantFactoryMethodSmooth: + + return InterpolateSmooth; + + } + + }, + + getValueSize: function () { + + return this.values.length / this.times.length; + + }, + + // move all keyframes either forwards or backwards in time + shift: function ( timeOffset ) { + + if ( timeOffset !== 0.0 ) { + + const times = this.times; + + for ( let i = 0, n = times.length; i !== n; ++ i ) { + + times[ i ] += timeOffset; + + } + + } + + return this; + + }, + + // scale all keyframe times by a factor (useful for frame <-> seconds conversions) + scale: function ( timeScale ) { + + if ( timeScale !== 1.0 ) { + + const times = this.times; + + for ( let i = 0, n = times.length; i !== n; ++ i ) { + + times[ i ] *= timeScale; + + } + + } + + return this; + + }, + + // removes keyframes before and after animation without changing any values within the range [startTime, endTime]. + // IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values + trim: function ( startTime, endTime ) { + + const times = this.times, + nKeys = times.length; + + let from = 0, + to = nKeys - 1; + + while ( from !== nKeys && times[ from ] < startTime ) { + + ++ from; + + } + + while ( to !== - 1 && times[ to ] > endTime ) { + + -- to; + + } + + ++ to; // inclusive -> exclusive bound + + if ( from !== 0 || to !== nKeys ) { + + // empty tracks are forbidden, so keep at least one keyframe + if ( from >= to ) { + + to = Math.max( to, 1 ); + from = to - 1; + + } + + const stride = this.getValueSize(); + this.times = AnimationUtils.arraySlice( times, from, to ); + this.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride ); + + } + + return this; + + }, + + // ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable + validate: function () { + + let valid = true; + + const valueSize = this.getValueSize(); + if ( valueSize - Math.floor( valueSize ) !== 0 ) { + + console.error( 'THREE.KeyframeTrack: Invalid value size in track.', this ); + valid = false; + + } + + const times = this.times, + values = this.values, + + nKeys = times.length; + + if ( nKeys === 0 ) { + + console.error( 'THREE.KeyframeTrack: Track is empty.', this ); + valid = false; + + } + + let prevTime = null; + + for ( let i = 0; i !== nKeys; i ++ ) { + + const currTime = times[ i ]; + + if ( typeof currTime === 'number' && isNaN( currTime ) ) { + + console.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime ); + valid = false; + break; + + } + + if ( prevTime !== null && prevTime > currTime ) { + + console.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime ); + valid = false; + break; + + } + + prevTime = currTime; + + } + + if ( values !== undefined ) { + + if ( AnimationUtils.isTypedArray( values ) ) { + + for ( let i = 0, n = values.length; i !== n; ++ i ) { + + const value = values[ i ]; + + if ( isNaN( value ) ) { + + console.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value ); + valid = false; + break; + + } + + } + + } + + } + + return valid; + + }, + + // removes equivalent sequential keys as common in morph target sequences + // (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0) + optimize: function () { + + // times or values may be shared with other tracks, so overwriting is unsafe + const times = AnimationUtils.arraySlice( this.times ), + values = AnimationUtils.arraySlice( this.values ), + stride = this.getValueSize(), + + smoothInterpolation = this.getInterpolation() === InterpolateSmooth, + + lastIndex = times.length - 1; + + let writeIndex = 1; + + for ( let i = 1; i < lastIndex; ++ i ) { + + let keep = false; + + const time = times[ i ]; + const timeNext = times[ i + 1 ]; + + // remove adjacent keyframes scheduled at the same time + + if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) { + + if ( ! smoothInterpolation ) { + + // remove unnecessary keyframes same as their neighbors + + const offset = i * stride, + offsetP = offset - stride, + offsetN = offset + stride; + + for ( let j = 0; j !== stride; ++ j ) { + + const value = values[ offset + j ]; + + if ( value !== values[ offsetP + j ] || + value !== values[ offsetN + j ] ) { + + keep = true; + break; + + } + + } + + } else { + + keep = true; + + } + + } + + // in-place compaction + + if ( keep ) { + + if ( i !== writeIndex ) { + + times[ writeIndex ] = times[ i ]; + + const readOffset = i * stride, + writeOffset = writeIndex * stride; + + for ( let j = 0; j !== stride; ++ j ) { + + values[ writeOffset + j ] = values[ readOffset + j ]; + + } + + } + + ++ writeIndex; + + } + + } + + // flush last keyframe (compaction looks ahead) + + if ( lastIndex > 0 ) { + + times[ writeIndex ] = times[ lastIndex ]; + + for ( let readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) { + + values[ writeOffset + j ] = values[ readOffset + j ]; + + } + + ++ writeIndex; + + } + + if ( writeIndex !== times.length ) { + + this.times = AnimationUtils.arraySlice( times, 0, writeIndex ); + this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride ); + + } else { + + this.times = times; + this.values = values; + + } + + return this; + + }, + + clone: function () { + + const times = AnimationUtils.arraySlice( this.times, 0 ); + const values = AnimationUtils.arraySlice( this.values, 0 ); + + const TypedKeyframeTrack = this.constructor; + const track = new TypedKeyframeTrack( this.name, times, values ); + + // Interpolant argument to constructor is not saved, so copy the factory method directly. + track.createInterpolant = this.createInterpolant; + + return track; + + } + +} ); + +/** + * A Track of Boolean keyframe values. + */ + +function BooleanKeyframeTrack( name, times, values ) { + + KeyframeTrack.call( this, name, times, values ); + +} + +BooleanKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), { + + constructor: BooleanKeyframeTrack, + + ValueTypeName: 'bool', + ValueBufferType: Array, + + DefaultInterpolation: InterpolateDiscrete, + + InterpolantFactoryMethodLinear: undefined, + InterpolantFactoryMethodSmooth: undefined + + // Note: Actually this track could have a optimized / compressed + // representation of a single value and a custom interpolant that + // computes "firstValue ^ isOdd( index )". + +} ); + +/** + * A Track of keyframe values that represent color. + */ + +function ColorKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrack.call( this, name, times, values, interpolation ); + +} + +ColorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), { + + constructor: ColorKeyframeTrack, + + ValueTypeName: 'color' + + // ValueBufferType is inherited + + // DefaultInterpolation is inherited + + // Note: Very basic implementation and nothing special yet. + // However, this is the place for color space parameterization. + +} ); + +/** + * A Track of numeric keyframe values. + */ + +function NumberKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrack.call( this, name, times, values, interpolation ); + +} + +NumberKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), { + + constructor: NumberKeyframeTrack, + + ValueTypeName: 'number' + + // ValueBufferType is inherited + + // DefaultInterpolation is inherited + +} ); + +/** + * Spherical linear unit quaternion interpolant. + */ + +function QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer ); + +} + +QuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), { + + constructor: QuaternionLinearInterpolant, + + interpolate_: function ( i1, t0, t, t1 ) { + + const result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + alpha = ( t - t0 ) / ( t1 - t0 ); + + let offset = i1 * stride; + + for ( let end = offset + stride; offset !== end; offset += 4 ) { + + Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha ); + + } + + return result; + + } + +} ); + +/** + * A Track of quaternion keyframe values. + */ + +function QuaternionKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrack.call( this, name, times, values, interpolation ); + +} + +QuaternionKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), { + + constructor: QuaternionKeyframeTrack, + + ValueTypeName: 'quaternion', + + // ValueBufferType is inherited + + DefaultInterpolation: InterpolateLinear, + + InterpolantFactoryMethodLinear: function ( result ) { + + return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result ); + + }, + + InterpolantFactoryMethodSmooth: undefined // not yet implemented + +} ); + +/** + * A Track that interpolates Strings + */ + +function StringKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrack.call( this, name, times, values, interpolation ); + +} + +StringKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), { + + constructor: StringKeyframeTrack, + + ValueTypeName: 'string', + ValueBufferType: Array, + + DefaultInterpolation: InterpolateDiscrete, + + InterpolantFactoryMethodLinear: undefined, + + InterpolantFactoryMethodSmooth: undefined + +} ); + +/** + * A Track of vectored keyframe values. + */ + +function VectorKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrack.call( this, name, times, values, interpolation ); + +} + +VectorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), { + + constructor: VectorKeyframeTrack, + + ValueTypeName: 'vector' + + // ValueBufferType is inherited + + // DefaultInterpolation is inherited + +} ); + +function AnimationClip( name, duration = - 1, tracks, blendMode = NormalAnimationBlendMode ) { + + this.name = name; + this.tracks = tracks; + this.duration = duration; + this.blendMode = blendMode; + + this.uuid = MathUtils.generateUUID(); + + // this means it should figure out its duration by scanning the tracks + if ( this.duration < 0 ) { + + this.resetDuration(); + + } + +} + +function getTrackTypeForValueTypeName( typeName ) { + + switch ( typeName.toLowerCase() ) { + + case 'scalar': + case 'double': + case 'float': + case 'number': + case 'integer': + + return NumberKeyframeTrack; + + case 'vector': + case 'vector2': + case 'vector3': + case 'vector4': + + return VectorKeyframeTrack; + + case 'color': + + return ColorKeyframeTrack; + + case 'quaternion': + + return QuaternionKeyframeTrack; + + case 'bool': + case 'boolean': + + return BooleanKeyframeTrack; + + case 'string': + + return StringKeyframeTrack; + + } + + throw new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName ); + +} + +function parseKeyframeTrack( json ) { + + if ( json.type === undefined ) { + + throw new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' ); + + } + + const trackType = getTrackTypeForValueTypeName( json.type ); + + if ( json.times === undefined ) { + + const times = [], values = []; + + AnimationUtils.flattenJSON( json.keys, times, values, 'value' ); + + json.times = times; + json.values = values; + + } + + // derived classes can define a static parse method + if ( trackType.parse !== undefined ) { + + return trackType.parse( json ); + + } else { + + // by default, we assume a constructor compatible with the base + return new trackType( json.name, json.times, json.values, json.interpolation ); + + } + +} + +Object.assign( AnimationClip, { + + parse: function ( json ) { + + const tracks = [], + jsonTracks = json.tracks, + frameTime = 1.0 / ( json.fps || 1.0 ); + + for ( let i = 0, n = jsonTracks.length; i !== n; ++ i ) { + + tracks.push( parseKeyframeTrack( jsonTracks[ i ] ).scale( frameTime ) ); + + } + + const clip = new AnimationClip( json.name, json.duration, tracks, json.blendMode ); + clip.uuid = json.uuid; + + return clip; + + }, + + toJSON: function ( clip ) { + + const tracks = [], + clipTracks = clip.tracks; + + const json = { + + 'name': clip.name, + 'duration': clip.duration, + 'tracks': tracks, + 'uuid': clip.uuid, + 'blendMode': clip.blendMode + + }; + + for ( let i = 0, n = clipTracks.length; i !== n; ++ i ) { + + tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) ); + + } + + return json; + + }, + + CreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) { + + const numMorphTargets = morphTargetSequence.length; + const tracks = []; + + for ( let i = 0; i < numMorphTargets; i ++ ) { + + let times = []; + let values = []; + + times.push( + ( i + numMorphTargets - 1 ) % numMorphTargets, + i, + ( i + 1 ) % numMorphTargets ); + + values.push( 0, 1, 0 ); + + const order = AnimationUtils.getKeyframeOrder( times ); + times = AnimationUtils.sortedArray( times, 1, order ); + values = AnimationUtils.sortedArray( values, 1, order ); + + // if there is a key at the first frame, duplicate it as the + // last frame as well for perfect loop. + if ( ! noLoop && times[ 0 ] === 0 ) { + + times.push( numMorphTargets ); + values.push( values[ 0 ] ); + + } + + tracks.push( + new NumberKeyframeTrack( + '.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']', + times, values + ).scale( 1.0 / fps ) ); + + } + + return new AnimationClip( name, - 1, tracks ); + + }, + + findByName: function ( objectOrClipArray, name ) { + + let clipArray = objectOrClipArray; + + if ( ! Array.isArray( objectOrClipArray ) ) { + + const o = objectOrClipArray; + clipArray = o.geometry && o.geometry.animations || o.animations; + + } + + for ( let i = 0; i < clipArray.length; i ++ ) { + + if ( clipArray[ i ].name === name ) { + + return clipArray[ i ]; + + } + + } + + return null; + + }, + + CreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) { + + const animationToMorphTargets = {}; + + // tested with https://regex101.com/ on trick sequences + // such flamingo_flyA_003, flamingo_run1_003, crdeath0059 + const pattern = /^([\w-]*?)([\d]+)$/; + + // sort morph target names into animation groups based + // patterns like Walk_001, Walk_002, Run_001, Run_002 + for ( let i = 0, il = morphTargets.length; i < il; i ++ ) { + + const morphTarget = morphTargets[ i ]; + const parts = morphTarget.name.match( pattern ); + + if ( parts && parts.length > 1 ) { + + const name = parts[ 1 ]; + + let animationMorphTargets = animationToMorphTargets[ name ]; + + if ( ! animationMorphTargets ) { + + animationToMorphTargets[ name ] = animationMorphTargets = []; + + } + + animationMorphTargets.push( morphTarget ); + + } + + } + + const clips = []; + + for ( const name in animationToMorphTargets ) { + + clips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) ); + + } + + return clips; + + }, + + // parse the animation.hierarchy format + parseAnimation: function ( animation, bones ) { + + if ( ! animation ) { + + console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' ); + return null; + + } + + const addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) { + + // only return track if there are actually keys. + if ( animationKeys.length !== 0 ) { + + const times = []; + const values = []; + + AnimationUtils.flattenJSON( animationKeys, times, values, propertyName ); + + // empty keys are filtered out, so check again + if ( times.length !== 0 ) { + + destTracks.push( new trackType( trackName, times, values ) ); + + } + + } + + }; + + const tracks = []; + + const clipName = animation.name || 'default'; + const fps = animation.fps || 30; + const blendMode = animation.blendMode; + + // automatic length determination in AnimationClip. + let duration = animation.length || - 1; + + const hierarchyTracks = animation.hierarchy || []; + + for ( let h = 0; h < hierarchyTracks.length; h ++ ) { + + const animationKeys = hierarchyTracks[ h ].keys; + + // skip empty tracks + if ( ! animationKeys || animationKeys.length === 0 ) continue; + + // process morph targets + if ( animationKeys[ 0 ].morphTargets ) { + + // figure out all morph targets used in this track + const morphTargetNames = {}; + + let k; + + for ( k = 0; k < animationKeys.length; k ++ ) { + + if ( animationKeys[ k ].morphTargets ) { + + for ( let m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) { + + morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1; + + } + + } + + } + + // create a track for each morph target with all zero + // morphTargetInfluences except for the keys in which + // the morphTarget is named. + for ( const morphTargetName in morphTargetNames ) { + + const times = []; + const values = []; + + for ( let m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) { + + const animationKey = animationKeys[ k ]; + + times.push( animationKey.time ); + values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 ); + + } + + tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) ); + + } + + duration = morphTargetNames.length * ( fps || 1.0 ); + + } else { + + // ...assume skeletal animation + + const boneName = '.bones[' + bones[ h ].name + ']'; + + addNonemptyTrack( + VectorKeyframeTrack, boneName + '.position', + animationKeys, 'pos', tracks ); + + addNonemptyTrack( + QuaternionKeyframeTrack, boneName + '.quaternion', + animationKeys, 'rot', tracks ); + + addNonemptyTrack( + VectorKeyframeTrack, boneName + '.scale', + animationKeys, 'scl', tracks ); + + } + + } + + if ( tracks.length === 0 ) { + + return null; + + } + + const clip = new AnimationClip( clipName, duration, tracks, blendMode ); + + return clip; + + } + +} ); + +Object.assign( AnimationClip.prototype, { + + resetDuration: function () { + + const tracks = this.tracks; + let duration = 0; + + for ( let i = 0, n = tracks.length; i !== n; ++ i ) { + + const track = this.tracks[ i ]; + + duration = Math.max( duration, track.times[ track.times.length - 1 ] ); + + } + + this.duration = duration; + + return this; + + }, + + trim: function () { + + for ( let i = 0; i < this.tracks.length; i ++ ) { + + this.tracks[ i ].trim( 0, this.duration ); + + } + + return this; + + }, + + validate: function () { + + let valid = true; + + for ( let i = 0; i < this.tracks.length; i ++ ) { + + valid = valid && this.tracks[ i ].validate(); + + } + + return valid; + + }, + + optimize: function () { + + for ( let i = 0; i < this.tracks.length; i ++ ) { + + this.tracks[ i ].optimize(); + + } + + return this; + + }, + + clone: function () { + + const tracks = []; + + for ( let i = 0; i < this.tracks.length; i ++ ) { + + tracks.push( this.tracks[ i ].clone() ); + + } + + return new AnimationClip( this.name, this.duration, tracks, this.blendMode ); + + }, + + toJSON: function () { + + return AnimationClip.toJSON( this ); + + } + +} ); + +const Cache = { + + enabled: false, + + files: {}, + + add: function ( key, file ) { + + if ( this.enabled === false ) return; + + // console.log( 'THREE.Cache', 'Adding key:', key ); + + this.files[ key ] = file; + + }, + + get: function ( key ) { + + if ( this.enabled === false ) return; + + // console.log( 'THREE.Cache', 'Checking key:', key ); + + return this.files[ key ]; + + }, + + remove: function ( key ) { + + delete this.files[ key ]; + + }, + + clear: function () { + + this.files = {}; + + } + +}; + +function LoadingManager( onLoad, onProgress, onError ) { + + const scope = this; + + let isLoading = false; + let itemsLoaded = 0; + let itemsTotal = 0; + let urlModifier = undefined; + const handlers = []; + + // Refer to #5689 for the reason why we don't set .onStart + // in the constructor + + this.onStart = undefined; + this.onLoad = onLoad; + this.onProgress = onProgress; + this.onError = onError; + + this.itemStart = function ( url ) { + + itemsTotal ++; + + if ( isLoading === false ) { + + if ( scope.onStart !== undefined ) { + + scope.onStart( url, itemsLoaded, itemsTotal ); + + } + + } + + isLoading = true; + + }; + + this.itemEnd = function ( url ) { + + itemsLoaded ++; + + if ( scope.onProgress !== undefined ) { + + scope.onProgress( url, itemsLoaded, itemsTotal ); + + } + + if ( itemsLoaded === itemsTotal ) { + + isLoading = false; + + if ( scope.onLoad !== undefined ) { + + scope.onLoad(); + + } + + } + + }; + + this.itemError = function ( url ) { + + if ( scope.onError !== undefined ) { + + scope.onError( url ); + + } + + }; + + this.resolveURL = function ( url ) { + + if ( urlModifier ) { + + return urlModifier( url ); + + } + + return url; + + }; + + this.setURLModifier = function ( transform ) { + + urlModifier = transform; + + return this; + + }; + + this.addHandler = function ( regex, loader ) { + + handlers.push( regex, loader ); + + return this; + + }; + + this.removeHandler = function ( regex ) { + + const index = handlers.indexOf( regex ); + + if ( index !== - 1 ) { + + handlers.splice( index, 2 ); + + } + + return this; + + }; + + this.getHandler = function ( file ) { + + for ( let i = 0, l = handlers.length; i < l; i += 2 ) { + + const regex = handlers[ i ]; + const loader = handlers[ i + 1 ]; + + if ( regex.global ) regex.lastIndex = 0; // see #17920 + + if ( regex.test( file ) ) { + + return loader; + + } + + } + + return null; + + }; + +} + +const DefaultLoadingManager = new LoadingManager(); + +function Loader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + this.crossOrigin = 'anonymous'; + this.withCredentials = false; + this.path = ''; + this.resourcePath = ''; + this.requestHeader = {}; + +} + +Object.assign( Loader.prototype, { + + load: function ( /* url, onLoad, onProgress, onError */ ) {}, + + loadAsync: function ( url, onProgress ) { + + const scope = this; + + return new Promise( function ( resolve, reject ) { + + scope.load( url, resolve, onProgress, reject ); + + } ); + + }, + + parse: function ( /* data */ ) {}, + + setCrossOrigin: function ( crossOrigin ) { + + this.crossOrigin = crossOrigin; + return this; + + }, + + setWithCredentials: function ( value ) { + + this.withCredentials = value; + return this; + + }, + + setPath: function ( path ) { + + this.path = path; + return this; + + }, + + setResourcePath: function ( resourcePath ) { + + this.resourcePath = resourcePath; + return this; + + }, + + setRequestHeader: function ( requestHeader ) { + + this.requestHeader = requestHeader; + return this; + + } + +} ); + +const loading = {}; + +function FileLoader( manager ) { + + Loader.call( this, manager ); + +} + +FileLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: FileLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + if ( url === undefined ) url = ''; + + if ( this.path !== undefined ) url = this.path + url; + + url = this.manager.resolveURL( url ); + + const scope = this; + + const cached = Cache.get( url ); + + if ( cached !== undefined ) { + + scope.manager.itemStart( url ); + + setTimeout( function () { + + if ( onLoad ) onLoad( cached ); + + scope.manager.itemEnd( url ); + + }, 0 ); + + return cached; + + } + + // Check if request is duplicate + + if ( loading[ url ] !== undefined ) { + + loading[ url ].push( { + + onLoad: onLoad, + onProgress: onProgress, + onError: onError + + } ); + + return; + + } + + // Check for data: URI + const dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/; + const dataUriRegexResult = url.match( dataUriRegex ); + let request; + + // Safari can not handle Data URIs through XMLHttpRequest so process manually + if ( dataUriRegexResult ) { + + const mimeType = dataUriRegexResult[ 1 ]; + const isBase64 = !! dataUriRegexResult[ 2 ]; + + let data = dataUriRegexResult[ 3 ]; + data = decodeURIComponent( data ); + + if ( isBase64 ) data = atob( data ); + + try { + + let response; + const responseType = ( this.responseType || '' ).toLowerCase(); + + switch ( responseType ) { + + case 'arraybuffer': + case 'blob': + + const view = new Uint8Array( data.length ); + + for ( let i = 0; i < data.length; i ++ ) { + + view[ i ] = data.charCodeAt( i ); + + } + + if ( responseType === 'blob' ) { + + response = new Blob( [ view.buffer ], { type: mimeType } ); + + } else { + + response = view.buffer; + + } + + break; + + case 'document': + + const parser = new DOMParser(); + response = parser.parseFromString( data, mimeType ); + + break; + + case 'json': + + response = JSON.parse( data ); + + break; + + default: // 'text' or other + + response = data; + + break; + + } + + // Wait for next browser tick like standard XMLHttpRequest event dispatching does + setTimeout( function () { + + if ( onLoad ) onLoad( response ); + + scope.manager.itemEnd( url ); + + }, 0 ); + + } catch ( error ) { + + // Wait for next browser tick like standard XMLHttpRequest event dispatching does + setTimeout( function () { + + if ( onError ) onError( error ); + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + }, 0 ); + + } + + } else { + + // Initialise array for duplicate requests + + loading[ url ] = []; + + loading[ url ].push( { + + onLoad: onLoad, + onProgress: onProgress, + onError: onError + + } ); + + request = new XMLHttpRequest(); + + request.open( 'GET', url, true ); + + request.addEventListener( 'load', function ( event ) { + + const response = this.response; + + const callbacks = loading[ url ]; + + delete loading[ url ]; + + if ( this.status === 200 || this.status === 0 ) { + + // Some browsers return HTTP Status 0 when using non-http protocol + // e.g. 'file://' or 'data://'. Handle as success. + + if ( this.status === 0 ) console.warn( 'THREE.FileLoader: HTTP Status 0 received.' ); + + // Add to cache only on HTTP success, so that we do not cache + // error response bodies as proper responses to requests. + Cache.add( url, response ); + + for ( let i = 0, il = callbacks.length; i < il; i ++ ) { + + const callback = callbacks[ i ]; + if ( callback.onLoad ) callback.onLoad( response ); + + } + + scope.manager.itemEnd( url ); + + } else { + + for ( let i = 0, il = callbacks.length; i < il; i ++ ) { + + const callback = callbacks[ i ]; + if ( callback.onError ) callback.onError( event ); + + } + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + } + + }, false ); + + request.addEventListener( 'progress', function ( event ) { + + const callbacks = loading[ url ]; + + for ( let i = 0, il = callbacks.length; i < il; i ++ ) { + + const callback = callbacks[ i ]; + if ( callback.onProgress ) callback.onProgress( event ); + + } + + }, false ); + + request.addEventListener( 'error', function ( event ) { + + const callbacks = loading[ url ]; + + delete loading[ url ]; + + for ( let i = 0, il = callbacks.length; i < il; i ++ ) { + + const callback = callbacks[ i ]; + if ( callback.onError ) callback.onError( event ); + + } + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + }, false ); + + request.addEventListener( 'abort', function ( event ) { + + const callbacks = loading[ url ]; + + delete loading[ url ]; + + for ( let i = 0, il = callbacks.length; i < il; i ++ ) { + + const callback = callbacks[ i ]; + if ( callback.onError ) callback.onError( event ); + + } + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + }, false ); + + if ( this.responseType !== undefined ) request.responseType = this.responseType; + if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials; + + if ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' ); + + for ( const header in this.requestHeader ) { + + request.setRequestHeader( header, this.requestHeader[ header ] ); + + } + + request.send( null ); + + } + + scope.manager.itemStart( url ); + + return request; + + }, + + setResponseType: function ( value ) { + + this.responseType = value; + return this; + + }, + + setMimeType: function ( value ) { + + this.mimeType = value; + return this; + + } + +} ); + +function AnimationLoader( manager ) { + + Loader.call( this, manager ); + +} + +AnimationLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: AnimationLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( scope.manager ); + loader.setPath( scope.path ); + loader.setRequestHeader( scope.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( text ) { + + try { + + onLoad( scope.parse( JSON.parse( text ) ) ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + }, + + parse: function ( json ) { + + const animations = []; + + for ( let i = 0; i < json.length; i ++ ) { + + const clip = AnimationClip.parse( json[ i ] ); + + animations.push( clip ); + + } + + return animations; + + } + +} ); + +/** + * Abstract Base class to block based textures loader (dds, pvr, ...) + * + * Sub classes have to implement the parse() method which will be used in load(). + */ + +function CompressedTextureLoader( manager ) { + + Loader.call( this, manager ); + +} + +CompressedTextureLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: CompressedTextureLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + const scope = this; + + const images = []; + + const texture = new CompressedTexture(); + + const loader = new FileLoader( this.manager ); + loader.setPath( this.path ); + loader.setResponseType( 'arraybuffer' ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + + let loaded = 0; + + function loadTexture( i ) { + + loader.load( url[ i ], function ( buffer ) { + + const texDatas = scope.parse( buffer, true ); + + images[ i ] = { + width: texDatas.width, + height: texDatas.height, + format: texDatas.format, + mipmaps: texDatas.mipmaps + }; + + loaded += 1; + + if ( loaded === 6 ) { + + if ( texDatas.mipmapCount === 1 ) texture.minFilter = LinearFilter; + + texture.image = images; + texture.format = texDatas.format; + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + } + + }, onProgress, onError ); + + } + + if ( Array.isArray( url ) ) { + + for ( let i = 0, il = url.length; i < il; ++ i ) { + + loadTexture( i ); + + } + + } else { + + // compressed cubemap texture stored in a single DDS file + + loader.load( url, function ( buffer ) { + + const texDatas = scope.parse( buffer, true ); + + if ( texDatas.isCubemap ) { + + const faces = texDatas.mipmaps.length / texDatas.mipmapCount; + + for ( let f = 0; f < faces; f ++ ) { + + images[ f ] = { mipmaps: [] }; + + for ( let i = 0; i < texDatas.mipmapCount; i ++ ) { + + images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] ); + images[ f ].format = texDatas.format; + images[ f ].width = texDatas.width; + images[ f ].height = texDatas.height; + + } + + } + + texture.image = images; + + } else { + + texture.image.width = texDatas.width; + texture.image.height = texDatas.height; + texture.mipmaps = texDatas.mipmaps; + + } + + if ( texDatas.mipmapCount === 1 ) { + + texture.minFilter = LinearFilter; + + } + + texture.format = texDatas.format; + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + }, onProgress, onError ); + + } + + return texture; + + } + +} ); + +function ImageLoader( manager ) { + + Loader.call( this, manager ); + +} + +ImageLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: ImageLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + if ( this.path !== undefined ) url = this.path + url; + + url = this.manager.resolveURL( url ); + + const scope = this; + + const cached = Cache.get( url ); + + if ( cached !== undefined ) { + + scope.manager.itemStart( url ); + + setTimeout( function () { + + if ( onLoad ) onLoad( cached ); + + scope.manager.itemEnd( url ); + + }, 0 ); + + return cached; + + } + + const image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' ); + + function onImageLoad() { + + image.removeEventListener( 'load', onImageLoad, false ); + image.removeEventListener( 'error', onImageError, false ); + + Cache.add( url, this ); + + if ( onLoad ) onLoad( this ); + + scope.manager.itemEnd( url ); + + } + + function onImageError( event ) { + + image.removeEventListener( 'load', onImageLoad, false ); + image.removeEventListener( 'error', onImageError, false ); + + if ( onError ) onError( event ); + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + } + + image.addEventListener( 'load', onImageLoad, false ); + image.addEventListener( 'error', onImageError, false ); + + if ( url.substr( 0, 5 ) !== 'data:' ) { + + if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin; + + } + + scope.manager.itemStart( url ); + + image.src = url; + + return image; + + } + +} ); + +function CubeTextureLoader( manager ) { + + Loader.call( this, manager ); + +} + +CubeTextureLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: CubeTextureLoader, + + load: function ( urls, onLoad, onProgress, onError ) { + + const texture = new CubeTexture(); + + const loader = new ImageLoader( this.manager ); + loader.setCrossOrigin( this.crossOrigin ); + loader.setPath( this.path ); + + let loaded = 0; + + function loadTexture( i ) { + + loader.load( urls[ i ], function ( image ) { + + texture.images[ i ] = image; + + loaded ++; + + if ( loaded === 6 ) { + + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + } + + }, undefined, onError ); + + } + + for ( let i = 0; i < urls.length; ++ i ) { + + loadTexture( i ); + + } + + return texture; + + } + +} ); + +/** + * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...) + * + * Sub classes have to implement the parse() method which will be used in load(). + */ + +function DataTextureLoader( manager ) { + + Loader.call( this, manager ); + +} + +DataTextureLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: DataTextureLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + const scope = this; + + const texture = new DataTexture(); + + const loader = new FileLoader( this.manager ); + loader.setResponseType( 'arraybuffer' ); + loader.setRequestHeader( this.requestHeader ); + loader.setPath( this.path ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( buffer ) { + + const texData = scope.parse( buffer ); + + if ( ! texData ) return; + + if ( texData.image !== undefined ) { + + texture.image = texData.image; + + } else if ( texData.data !== undefined ) { + + texture.image.width = texData.width; + texture.image.height = texData.height; + texture.image.data = texData.data; + + } + + texture.wrapS = texData.wrapS !== undefined ? texData.wrapS : ClampToEdgeWrapping; + texture.wrapT = texData.wrapT !== undefined ? texData.wrapT : ClampToEdgeWrapping; + + texture.magFilter = texData.magFilter !== undefined ? texData.magFilter : LinearFilter; + texture.minFilter = texData.minFilter !== undefined ? texData.minFilter : LinearFilter; + + texture.anisotropy = texData.anisotropy !== undefined ? texData.anisotropy : 1; + + if ( texData.format !== undefined ) { + + texture.format = texData.format; + + } + + if ( texData.type !== undefined ) { + + texture.type = texData.type; + + } + + if ( texData.mipmaps !== undefined ) { + + texture.mipmaps = texData.mipmaps; + texture.minFilter = LinearMipmapLinearFilter; // presumably... + + } + + if ( texData.mipmapCount === 1 ) { + + texture.minFilter = LinearFilter; + + } + + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture, texData ); + + }, onProgress, onError ); + + + return texture; + + } + +} ); + +function TextureLoader( manager ) { + + Loader.call( this, manager ); + +} + +TextureLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: TextureLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + const texture = new Texture(); + + const loader = new ImageLoader( this.manager ); + loader.setCrossOrigin( this.crossOrigin ); + loader.setPath( this.path ); + + loader.load( url, function ( image ) { + + texture.image = image; + + // JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB. + const isJPEG = url.search( /\.jpe?g($|\?)/i ) > 0 || url.search( /^data\:image\/jpeg/ ) === 0; + + texture.format = isJPEG ? RGBFormat : RGBAFormat; + texture.needsUpdate = true; + + if ( onLoad !== undefined ) { + + onLoad( texture ); + + } + + }, onProgress, onError ); + + return texture; + + } + +} ); + +/** + * Extensible curve object. + * + * Some common of curve methods: + * .getPoint( t, optionalTarget ), .getTangent( t, optionalTarget ) + * .getPointAt( u, optionalTarget ), .getTangentAt( u, optionalTarget ) + * .getPoints(), .getSpacedPoints() + * .getLength() + * .updateArcLengths() + * + * This following curves inherit from THREE.Curve: + * + * -- 2D curves -- + * THREE.ArcCurve + * THREE.CubicBezierCurve + * THREE.EllipseCurve + * THREE.LineCurve + * THREE.QuadraticBezierCurve + * THREE.SplineCurve + * + * -- 3D curves -- + * THREE.CatmullRomCurve3 + * THREE.CubicBezierCurve3 + * THREE.LineCurve3 + * THREE.QuadraticBezierCurve3 + * + * A series of curves can be represented as a THREE.CurvePath. + * + **/ + +function Curve() { + + this.type = 'Curve'; + + this.arcLengthDivisions = 200; + +} + +Object.assign( Curve.prototype, { + + // Virtual base class method to overwrite and implement in subclasses + // - t [0 .. 1] + + getPoint: function ( /* t, optionalTarget */ ) { + + console.warn( 'THREE.Curve: .getPoint() not implemented.' ); + return null; + + }, + + // Get point at relative position in curve according to arc length + // - u [0 .. 1] + + getPointAt: function ( u, optionalTarget ) { + + const t = this.getUtoTmapping( u ); + return this.getPoint( t, optionalTarget ); + + }, + + // Get sequence of points using getPoint( t ) + + getPoints: function ( divisions = 5 ) { + + const points = []; + + for ( let d = 0; d <= divisions; d ++ ) { + + points.push( this.getPoint( d / divisions ) ); + + } + + return points; + + }, + + // Get sequence of points using getPointAt( u ) + + getSpacedPoints: function ( divisions = 5 ) { + + const points = []; + + for ( let d = 0; d <= divisions; d ++ ) { + + points.push( this.getPointAt( d / divisions ) ); + + } + + return points; + + }, + + // Get total curve arc length + + getLength: function () { + + const lengths = this.getLengths(); + return lengths[ lengths.length - 1 ]; + + }, + + // Get list of cumulative segment lengths + + getLengths: function ( divisions ) { + + if ( divisions === undefined ) divisions = this.arcLengthDivisions; + + if ( this.cacheArcLengths && + ( this.cacheArcLengths.length === divisions + 1 ) && + ! this.needsUpdate ) { + + return this.cacheArcLengths; + + } + + this.needsUpdate = false; + + const cache = []; + let current, last = this.getPoint( 0 ); + let sum = 0; + + cache.push( 0 ); + + for ( let p = 1; p <= divisions; p ++ ) { + + current = this.getPoint( p / divisions ); + sum += current.distanceTo( last ); + cache.push( sum ); + last = current; + + } + + this.cacheArcLengths = cache; + + return cache; // { sums: cache, sum: sum }; Sum is in the last element. + + }, + + updateArcLengths: function () { + + this.needsUpdate = true; + this.getLengths(); + + }, + + // Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant + + getUtoTmapping: function ( u, distance ) { + + const arcLengths = this.getLengths(); + + let i = 0; + const il = arcLengths.length; + + let targetArcLength; // The targeted u distance value to get + + if ( distance ) { + + targetArcLength = distance; + + } else { + + targetArcLength = u * arcLengths[ il - 1 ]; + + } + + // binary search for the index with largest value smaller than target u distance + + let low = 0, high = il - 1, comparison; + + while ( low <= high ) { + + i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats + + comparison = arcLengths[ i ] - targetArcLength; + + if ( comparison < 0 ) { + + low = i + 1; + + } else if ( comparison > 0 ) { + + high = i - 1; + + } else { + + high = i; + break; + + // DONE + + } + + } + + i = high; + + if ( arcLengths[ i ] === targetArcLength ) { + + return i / ( il - 1 ); + + } + + // we could get finer grain at lengths, or use simple interpolation between two points + + const lengthBefore = arcLengths[ i ]; + const lengthAfter = arcLengths[ i + 1 ]; + + const segmentLength = lengthAfter - lengthBefore; + + // determine where we are between the 'before' and 'after' points + + const segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength; + + // add that fractional amount to t + + const t = ( i + segmentFraction ) / ( il - 1 ); + + return t; + + }, + + // Returns a unit vector tangent at t + // In case any sub curve does not implement its tangent derivation, + // 2 points a small delta apart will be used to find its gradient + // which seems to give a reasonable approximation + + getTangent: function ( t, optionalTarget ) { + + const delta = 0.0001; + let t1 = t - delta; + let t2 = t + delta; + + // Capping in case of danger + + if ( t1 < 0 ) t1 = 0; + if ( t2 > 1 ) t2 = 1; + + const pt1 = this.getPoint( t1 ); + const pt2 = this.getPoint( t2 ); + + const tangent = optionalTarget || ( ( pt1.isVector2 ) ? new Vector2() : new Vector3() ); + + tangent.copy( pt2 ).sub( pt1 ).normalize(); + + return tangent; + + }, + + getTangentAt: function ( u, optionalTarget ) { + + const t = this.getUtoTmapping( u ); + return this.getTangent( t, optionalTarget ); + + }, + + computeFrenetFrames: function ( segments, closed ) { + + // see http://www.cs.indiana.edu/pub/techreports/TR425.pdf + + const normal = new Vector3(); + + const tangents = []; + const normals = []; + const binormals = []; + + const vec = new Vector3(); + const mat = new Matrix4(); + + // compute the tangent vectors for each segment on the curve + + for ( let i = 0; i <= segments; i ++ ) { + + const u = i / segments; + + tangents[ i ] = this.getTangentAt( u, new Vector3() ); + tangents[ i ].normalize(); + + } + + // select an initial normal vector perpendicular to the first tangent vector, + // and in the direction of the minimum tangent xyz component + + normals[ 0 ] = new Vector3(); + binormals[ 0 ] = new Vector3(); + let min = Number.MAX_VALUE; + const tx = Math.abs( tangents[ 0 ].x ); + const ty = Math.abs( tangents[ 0 ].y ); + const tz = Math.abs( tangents[ 0 ].z ); + + if ( tx <= min ) { + + min = tx; + normal.set( 1, 0, 0 ); + + } + + if ( ty <= min ) { + + min = ty; + normal.set( 0, 1, 0 ); + + } + + if ( tz <= min ) { + + normal.set( 0, 0, 1 ); + + } + + vec.crossVectors( tangents[ 0 ], normal ).normalize(); + + normals[ 0 ].crossVectors( tangents[ 0 ], vec ); + binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] ); + + + // compute the slowly-varying normal and binormal vectors for each segment on the curve + + for ( let i = 1; i <= segments; i ++ ) { + + normals[ i ] = normals[ i - 1 ].clone(); + + binormals[ i ] = binormals[ i - 1 ].clone(); + + vec.crossVectors( tangents[ i - 1 ], tangents[ i ] ); + + if ( vec.length() > Number.EPSILON ) { + + vec.normalize(); + + const theta = Math.acos( MathUtils.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors + + normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) ); + + } + + binormals[ i ].crossVectors( tangents[ i ], normals[ i ] ); + + } + + // if the curve is closed, postprocess the vectors so the first and last normal vectors are the same + + if ( closed === true ) { + + let theta = Math.acos( MathUtils.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) ); + theta /= segments; + + if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) { + + theta = - theta; + + } + + for ( let i = 1; i <= segments; i ++ ) { + + // twist a little... + normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) ); + binormals[ i ].crossVectors( tangents[ i ], normals[ i ] ); + + } + + } + + return { + tangents: tangents, + normals: normals, + binormals: binormals + }; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( source ) { + + this.arcLengthDivisions = source.arcLengthDivisions; + + return this; + + }, + + toJSON: function () { + + const data = { + metadata: { + version: 4.5, + type: 'Curve', + generator: 'Curve.toJSON' + } + }; + + data.arcLengthDivisions = this.arcLengthDivisions; + data.type = this.type; + + return data; + + }, + + fromJSON: function ( json ) { + + this.arcLengthDivisions = json.arcLengthDivisions; + + return this; + + } + +} ); + +function EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) { + + Curve.call( this ); + + this.type = 'EllipseCurve'; + + this.aX = aX || 0; + this.aY = aY || 0; + + this.xRadius = xRadius || 1; + this.yRadius = yRadius || 1; + + this.aStartAngle = aStartAngle || 0; + this.aEndAngle = aEndAngle || 2 * Math.PI; + + this.aClockwise = aClockwise || false; + + this.aRotation = aRotation || 0; + +} + +EllipseCurve.prototype = Object.create( Curve.prototype ); +EllipseCurve.prototype.constructor = EllipseCurve; + +EllipseCurve.prototype.isEllipseCurve = true; + +EllipseCurve.prototype.getPoint = function ( t, optionalTarget ) { + + const point = optionalTarget || new Vector2(); + + const twoPi = Math.PI * 2; + let deltaAngle = this.aEndAngle - this.aStartAngle; + const samePoints = Math.abs( deltaAngle ) < Number.EPSILON; + + // ensures that deltaAngle is 0 .. 2 PI + while ( deltaAngle < 0 ) deltaAngle += twoPi; + while ( deltaAngle > twoPi ) deltaAngle -= twoPi; + + if ( deltaAngle < Number.EPSILON ) { + + if ( samePoints ) { + + deltaAngle = 0; + + } else { + + deltaAngle = twoPi; + + } + + } + + if ( this.aClockwise === true && ! samePoints ) { + + if ( deltaAngle === twoPi ) { + + deltaAngle = - twoPi; + + } else { + + deltaAngle = deltaAngle - twoPi; + + } + + } + + const angle = this.aStartAngle + t * deltaAngle; + let x = this.aX + this.xRadius * Math.cos( angle ); + let y = this.aY + this.yRadius * Math.sin( angle ); + + if ( this.aRotation !== 0 ) { + + const cos = Math.cos( this.aRotation ); + const sin = Math.sin( this.aRotation ); + + const tx = x - this.aX; + const ty = y - this.aY; + + // Rotate the point about the center of the ellipse. + x = tx * cos - ty * sin + this.aX; + y = tx * sin + ty * cos + this.aY; + + } + + return point.set( x, y ); + +}; + +EllipseCurve.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.aX = source.aX; + this.aY = source.aY; + + this.xRadius = source.xRadius; + this.yRadius = source.yRadius; + + this.aStartAngle = source.aStartAngle; + this.aEndAngle = source.aEndAngle; + + this.aClockwise = source.aClockwise; + + this.aRotation = source.aRotation; + + return this; + +}; + + +EllipseCurve.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.aX = this.aX; + data.aY = this.aY; + + data.xRadius = this.xRadius; + data.yRadius = this.yRadius; + + data.aStartAngle = this.aStartAngle; + data.aEndAngle = this.aEndAngle; + + data.aClockwise = this.aClockwise; + + data.aRotation = this.aRotation; + + return data; + +}; + +EllipseCurve.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.aX = json.aX; + this.aY = json.aY; + + this.xRadius = json.xRadius; + this.yRadius = json.yRadius; + + this.aStartAngle = json.aStartAngle; + this.aEndAngle = json.aEndAngle; + + this.aClockwise = json.aClockwise; + + this.aRotation = json.aRotation; + + return this; + +}; + +function ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise ); + + this.type = 'ArcCurve'; + +} + +ArcCurve.prototype = Object.create( EllipseCurve.prototype ); +ArcCurve.prototype.constructor = ArcCurve; + +ArcCurve.prototype.isArcCurve = true; + +/** + * Centripetal CatmullRom Curve - which is useful for avoiding + * cusps and self-intersections in non-uniform catmull rom curves. + * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf + * + * curve.type accepts centripetal(default), chordal and catmullrom + * curve.tension is used for catmullrom which defaults to 0.5 + */ + + +/* +Based on an optimized c++ solution in + - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/ + - http://ideone.com/NoEbVM + +This CubicPoly class could be used for reusing some variables and calculations, +but for three.js curve use, it could be possible inlined and flatten into a single function call +which can be placed in CurveUtils. +*/ + +function CubicPoly() { + + let c0 = 0, c1 = 0, c2 = 0, c3 = 0; + + /* + * Compute coefficients for a cubic polynomial + * p(s) = c0 + c1*s + c2*s^2 + c3*s^3 + * such that + * p(0) = x0, p(1) = x1 + * and + * p'(0) = t0, p'(1) = t1. + */ + function init( x0, x1, t0, t1 ) { + + c0 = x0; + c1 = t0; + c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1; + c3 = 2 * x0 - 2 * x1 + t0 + t1; + + } + + return { + + initCatmullRom: function ( x0, x1, x2, x3, tension ) { + + init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) ); + + }, + + initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) { + + // compute tangents when parameterized in [t1,t2] + let t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1; + let t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2; + + // rescale tangents for parametrization in [0,1] + t1 *= dt1; + t2 *= dt1; + + init( x1, x2, t1, t2 ); + + }, + + calc: function ( t ) { + + const t2 = t * t; + const t3 = t2 * t; + return c0 + c1 * t + c2 * t2 + c3 * t3; + + } + + }; + +} + +// + +const tmp = new Vector3(); +const px = new CubicPoly(), py = new CubicPoly(), pz = new CubicPoly(); + +function CatmullRomCurve3( points = [], closed = false, curveType = 'centripetal', tension = 0.5 ) { + + Curve.call( this ); + + this.type = 'CatmullRomCurve3'; + + this.points = points; + this.closed = closed; + this.curveType = curveType; + this.tension = tension; + +} + +CatmullRomCurve3.prototype = Object.create( Curve.prototype ); +CatmullRomCurve3.prototype.constructor = CatmullRomCurve3; + +CatmullRomCurve3.prototype.isCatmullRomCurve3 = true; + +CatmullRomCurve3.prototype.getPoint = function ( t, optionalTarget = new Vector3() ) { + + const point = optionalTarget; + + const points = this.points; + const l = points.length; + + const p = ( l - ( this.closed ? 0 : 1 ) ) * t; + let intPoint = Math.floor( p ); + let weight = p - intPoint; + + if ( this.closed ) { + + intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / l ) + 1 ) * l; + + } else if ( weight === 0 && intPoint === l - 1 ) { + + intPoint = l - 2; + weight = 1; + + } + + let p0, p3; // 4 points (p1 & p2 defined below) + + if ( this.closed || intPoint > 0 ) { + + p0 = points[ ( intPoint - 1 ) % l ]; + + } else { + + // extrapolate first point + tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] ); + p0 = tmp; + + } + + const p1 = points[ intPoint % l ]; + const p2 = points[ ( intPoint + 1 ) % l ]; + + if ( this.closed || intPoint + 2 < l ) { + + p3 = points[ ( intPoint + 2 ) % l ]; + + } else { + + // extrapolate last point + tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] ); + p3 = tmp; + + } + + if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) { + + // init Centripetal / Chordal Catmull-Rom + const pow = this.curveType === 'chordal' ? 0.5 : 0.25; + let dt0 = Math.pow( p0.distanceToSquared( p1 ), pow ); + let dt1 = Math.pow( p1.distanceToSquared( p2 ), pow ); + let dt2 = Math.pow( p2.distanceToSquared( p3 ), pow ); + + // safety check for repeated points + if ( dt1 < 1e-4 ) dt1 = 1.0; + if ( dt0 < 1e-4 ) dt0 = dt1; + if ( dt2 < 1e-4 ) dt2 = dt1; + + px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 ); + py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 ); + pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 ); + + } else if ( this.curveType === 'catmullrom' ) { + + px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension ); + py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension ); + pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension ); + + } + + point.set( + px.calc( weight ), + py.calc( weight ), + pz.calc( weight ) + ); + + return point; + +}; + +CatmullRomCurve3.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.points = []; + + for ( let i = 0, l = source.points.length; i < l; i ++ ) { + + const point = source.points[ i ]; + + this.points.push( point.clone() ); + + } + + this.closed = source.closed; + this.curveType = source.curveType; + this.tension = source.tension; + + return this; + +}; + +CatmullRomCurve3.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.points = []; + + for ( let i = 0, l = this.points.length; i < l; i ++ ) { + + const point = this.points[ i ]; + data.points.push( point.toArray() ); + + } + + data.closed = this.closed; + data.curveType = this.curveType; + data.tension = this.tension; + + return data; + +}; + +CatmullRomCurve3.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.points = []; + + for ( let i = 0, l = json.points.length; i < l; i ++ ) { + + const point = json.points[ i ]; + this.points.push( new Vector3().fromArray( point ) ); + + } + + this.closed = json.closed; + this.curveType = json.curveType; + this.tension = json.tension; + + return this; + +}; + +/** + * Bezier Curves formulas obtained from + * http://en.wikipedia.org/wiki/Bézier_curve + */ + +function CatmullRom( t, p0, p1, p2, p3 ) { + + const v0 = ( p2 - p0 ) * 0.5; + const v1 = ( p3 - p1 ) * 0.5; + const t2 = t * t; + const t3 = t * t2; + return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1; + +} + +// + +function QuadraticBezierP0( t, p ) { + + const k = 1 - t; + return k * k * p; + +} + +function QuadraticBezierP1( t, p ) { + + return 2 * ( 1 - t ) * t * p; + +} + +function QuadraticBezierP2( t, p ) { + + return t * t * p; + +} + +function QuadraticBezier( t, p0, p1, p2 ) { + + return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) + + QuadraticBezierP2( t, p2 ); + +} + +// + +function CubicBezierP0( t, p ) { + + const k = 1 - t; + return k * k * k * p; + +} + +function CubicBezierP1( t, p ) { + + const k = 1 - t; + return 3 * k * k * t * p; + +} + +function CubicBezierP2( t, p ) { + + return 3 * ( 1 - t ) * t * t * p; + +} + +function CubicBezierP3( t, p ) { + + return t * t * t * p; + +} + +function CubicBezier( t, p0, p1, p2, p3 ) { + + return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) + + CubicBezierP3( t, p3 ); + +} + +function CubicBezierCurve( v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2(), v3 = new Vector2() ) { + + Curve.call( this ); + + this.type = 'CubicBezierCurve'; + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + this.v3 = v3; + +} + +CubicBezierCurve.prototype = Object.create( Curve.prototype ); +CubicBezierCurve.prototype.constructor = CubicBezierCurve; + +CubicBezierCurve.prototype.isCubicBezierCurve = true; + +CubicBezierCurve.prototype.getPoint = function ( t, optionalTarget = new Vector2() ) { + + const point = optionalTarget; + + const v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3; + + point.set( + CubicBezier( t, v0.x, v1.x, v2.x, v3.x ), + CubicBezier( t, v0.y, v1.y, v2.y, v3.y ) + ); + + return point; + +}; + +CubicBezierCurve.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.v0.copy( source.v0 ); + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + this.v3.copy( source.v3 ); + + return this; + +}; + +CubicBezierCurve.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.v0 = this.v0.toArray(); + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + data.v3 = this.v3.toArray(); + + return data; + +}; + +CubicBezierCurve.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.v0.fromArray( json.v0 ); + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + this.v3.fromArray( json.v3 ); + + return this; + +}; + +function CubicBezierCurve3( v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3(), v3 = new Vector3() ) { + + Curve.call( this ); + + this.type = 'CubicBezierCurve3'; + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + this.v3 = v3; + +} + +CubicBezierCurve3.prototype = Object.create( Curve.prototype ); +CubicBezierCurve3.prototype.constructor = CubicBezierCurve3; + +CubicBezierCurve3.prototype.isCubicBezierCurve3 = true; + +CubicBezierCurve3.prototype.getPoint = function ( t, optionalTarget = new Vector3() ) { + + const point = optionalTarget; + + const v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3; + + point.set( + CubicBezier( t, v0.x, v1.x, v2.x, v3.x ), + CubicBezier( t, v0.y, v1.y, v2.y, v3.y ), + CubicBezier( t, v0.z, v1.z, v2.z, v3.z ) + ); + + return point; + +}; + +CubicBezierCurve3.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.v0.copy( source.v0 ); + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + this.v3.copy( source.v3 ); + + return this; + +}; + +CubicBezierCurve3.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.v0 = this.v0.toArray(); + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + data.v3 = this.v3.toArray(); + + return data; + +}; + +CubicBezierCurve3.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.v0.fromArray( json.v0 ); + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + this.v3.fromArray( json.v3 ); + + return this; + +}; + +function LineCurve( v1 = new Vector2(), v2 = new Vector2() ) { + + Curve.call( this ); + + this.type = 'LineCurve'; + + this.v1 = v1; + this.v2 = v2; + +} + +LineCurve.prototype = Object.create( Curve.prototype ); +LineCurve.prototype.constructor = LineCurve; + +LineCurve.prototype.isLineCurve = true; + +LineCurve.prototype.getPoint = function ( t, optionalTarget = new Vector2() ) { + + const point = optionalTarget; + + if ( t === 1 ) { + + point.copy( this.v2 ); + + } else { + + point.copy( this.v2 ).sub( this.v1 ); + point.multiplyScalar( t ).add( this.v1 ); + + } + + return point; + +}; + +// Line curve is linear, so we can overwrite default getPointAt + +LineCurve.prototype.getPointAt = function ( u, optionalTarget ) { + + return this.getPoint( u, optionalTarget ); + +}; + +LineCurve.prototype.getTangent = function ( t, optionalTarget ) { + + const tangent = optionalTarget || new Vector2(); + + tangent.copy( this.v2 ).sub( this.v1 ).normalize(); + + return tangent; + +}; + +LineCurve.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + + return this; + +}; + +LineCurve.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + + return data; + +}; + +LineCurve.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + + return this; + +}; + +function LineCurve3( v1 = new Vector3(), v2 = new Vector3() ) { + + Curve.call( this ); + + this.type = 'LineCurve3'; + + this.v1 = v1; + this.v2 = v2; + +} + +LineCurve3.prototype = Object.create( Curve.prototype ); +LineCurve3.prototype.constructor = LineCurve3; + +LineCurve3.prototype.isLineCurve3 = true; + +LineCurve3.prototype.getPoint = function ( t, optionalTarget = new Vector3() ) { + + const point = optionalTarget; + + if ( t === 1 ) { + + point.copy( this.v2 ); + + } else { + + point.copy( this.v2 ).sub( this.v1 ); + point.multiplyScalar( t ).add( this.v1 ); + + } + + return point; + +}; + +// Line curve is linear, so we can overwrite default getPointAt + +LineCurve3.prototype.getPointAt = function ( u, optionalTarget ) { + + return this.getPoint( u, optionalTarget ); + +}; + +LineCurve3.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + + return this; + +}; + +LineCurve3.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + + return data; + +}; + +LineCurve3.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + + return this; + +}; + +function QuadraticBezierCurve( v0 = new Vector2(), v1 = new Vector2(), v2 = new Vector2() ) { + + Curve.call( this ); + + this.type = 'QuadraticBezierCurve'; + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + +} + +QuadraticBezierCurve.prototype = Object.create( Curve.prototype ); +QuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve; + +QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true; + +QuadraticBezierCurve.prototype.getPoint = function ( t, optionalTarget = new Vector2() ) { + + const point = optionalTarget; + + const v0 = this.v0, v1 = this.v1, v2 = this.v2; + + point.set( + QuadraticBezier( t, v0.x, v1.x, v2.x ), + QuadraticBezier( t, v0.y, v1.y, v2.y ) + ); + + return point; + +}; + +QuadraticBezierCurve.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.v0.copy( source.v0 ); + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + + return this; + +}; + +QuadraticBezierCurve.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.v0 = this.v0.toArray(); + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + + return data; + +}; + +QuadraticBezierCurve.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.v0.fromArray( json.v0 ); + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + + return this; + +}; + +function QuadraticBezierCurve3( v0 = new Vector3(), v1 = new Vector3(), v2 = new Vector3() ) { + + Curve.call( this ); + + this.type = 'QuadraticBezierCurve3'; + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + +} + +QuadraticBezierCurve3.prototype = Object.create( Curve.prototype ); +QuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3; + +QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true; + +QuadraticBezierCurve3.prototype.getPoint = function ( t, optionalTarget = new Vector3() ) { + + const point = optionalTarget; + + const v0 = this.v0, v1 = this.v1, v2 = this.v2; + + point.set( + QuadraticBezier( t, v0.x, v1.x, v2.x ), + QuadraticBezier( t, v0.y, v1.y, v2.y ), + QuadraticBezier( t, v0.z, v1.z, v2.z ) + ); + + return point; + +}; + +QuadraticBezierCurve3.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.v0.copy( source.v0 ); + this.v1.copy( source.v1 ); + this.v2.copy( source.v2 ); + + return this; + +}; + +QuadraticBezierCurve3.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.v0 = this.v0.toArray(); + data.v1 = this.v1.toArray(); + data.v2 = this.v2.toArray(); + + return data; + +}; + +QuadraticBezierCurve3.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.v0.fromArray( json.v0 ); + this.v1.fromArray( json.v1 ); + this.v2.fromArray( json.v2 ); + + return this; + +}; + +function SplineCurve( points = [] ) { + + Curve.call( this ); + + this.type = 'SplineCurve'; + + this.points = points; + +} + +SplineCurve.prototype = Object.create( Curve.prototype ); +SplineCurve.prototype.constructor = SplineCurve; + +SplineCurve.prototype.isSplineCurve = true; + +SplineCurve.prototype.getPoint = function ( t, optionalTarget = new Vector2() ) { + + const point = optionalTarget; + + const points = this.points; + const p = ( points.length - 1 ) * t; + + const intPoint = Math.floor( p ); + const weight = p - intPoint; + + const p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ]; + const p1 = points[ intPoint ]; + const p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ]; + const p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ]; + + point.set( + CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ), + CatmullRom( weight, p0.y, p1.y, p2.y, p3.y ) + ); + + return point; + +}; + +SplineCurve.prototype.copy = function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.points = []; + + for ( let i = 0, l = source.points.length; i < l; i ++ ) { + + const point = source.points[ i ]; + + this.points.push( point.clone() ); + + } + + return this; + +}; + +SplineCurve.prototype.toJSON = function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.points = []; + + for ( let i = 0, l = this.points.length; i < l; i ++ ) { + + const point = this.points[ i ]; + data.points.push( point.toArray() ); + + } + + return data; + +}; + +SplineCurve.prototype.fromJSON = function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.points = []; + + for ( let i = 0, l = json.points.length; i < l; i ++ ) { + + const point = json.points[ i ]; + this.points.push( new Vector2().fromArray( point ) ); + + } + + return this; + +}; + +var Curves = /*#__PURE__*/Object.freeze({ + __proto__: null, + ArcCurve: ArcCurve, + CatmullRomCurve3: CatmullRomCurve3, + CubicBezierCurve: CubicBezierCurve, + CubicBezierCurve3: CubicBezierCurve3, + EllipseCurve: EllipseCurve, + LineCurve: LineCurve, + LineCurve3: LineCurve3, + QuadraticBezierCurve: QuadraticBezierCurve, + QuadraticBezierCurve3: QuadraticBezierCurve3, + SplineCurve: SplineCurve +}); + +/************************************************************** + * Curved Path - a curve path is simply a array of connected + * curves, but retains the api of a curve + **************************************************************/ + +function CurvePath() { + + Curve.call( this ); + + this.type = 'CurvePath'; + + this.curves = []; + this.autoClose = false; // Automatically closes the path + +} + +CurvePath.prototype = Object.assign( Object.create( Curve.prototype ), { + + constructor: CurvePath, + + add: function ( curve ) { + + this.curves.push( curve ); + + }, + + closePath: function () { + + // Add a line curve if start and end of lines are not connected + const startPoint = this.curves[ 0 ].getPoint( 0 ); + const endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 ); + + if ( ! startPoint.equals( endPoint ) ) { + + this.curves.push( new LineCurve( endPoint, startPoint ) ); + + } + + }, + + // To get accurate point with reference to + // entire path distance at time t, + // following has to be done: + + // 1. Length of each sub path have to be known + // 2. Locate and identify type of curve + // 3. Get t for the curve + // 4. Return curve.getPointAt(t') + + getPoint: function ( t ) { + + const d = t * this.getLength(); + const curveLengths = this.getCurveLengths(); + let i = 0; + + // To think about boundaries points. + + while ( i < curveLengths.length ) { + + if ( curveLengths[ i ] >= d ) { + + const diff = curveLengths[ i ] - d; + const curve = this.curves[ i ]; + + const segmentLength = curve.getLength(); + const u = segmentLength === 0 ? 0 : 1 - diff / segmentLength; + + return curve.getPointAt( u ); + + } + + i ++; + + } + + return null; + + // loop where sum != 0, sum > d , sum+1 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) { + + points.push( points[ 0 ] ); + + } + + return points; + + }, + + copy: function ( source ) { + + Curve.prototype.copy.call( this, source ); + + this.curves = []; + + for ( let i = 0, l = source.curves.length; i < l; i ++ ) { + + const curve = source.curves[ i ]; + + this.curves.push( curve.clone() ); + + } + + this.autoClose = source.autoClose; + + return this; + + }, + + toJSON: function () { + + const data = Curve.prototype.toJSON.call( this ); + + data.autoClose = this.autoClose; + data.curves = []; + + for ( let i = 0, l = this.curves.length; i < l; i ++ ) { + + const curve = this.curves[ i ]; + data.curves.push( curve.toJSON() ); + + } + + return data; + + }, + + fromJSON: function ( json ) { + + Curve.prototype.fromJSON.call( this, json ); + + this.autoClose = json.autoClose; + this.curves = []; + + for ( let i = 0, l = json.curves.length; i < l; i ++ ) { + + const curve = json.curves[ i ]; + this.curves.push( new Curves[ curve.type ]().fromJSON( curve ) ); + + } + + return this; + + } + +} ); + +function Path( points ) { + + CurvePath.call( this ); + + this.type = 'Path'; + + this.currentPoint = new Vector2(); + + if ( points ) { + + this.setFromPoints( points ); + + } + +} + +Path.prototype = Object.assign( Object.create( CurvePath.prototype ), { + + constructor: Path, + + setFromPoints: function ( points ) { + + this.moveTo( points[ 0 ].x, points[ 0 ].y ); + + for ( let i = 1, l = points.length; i < l; i ++ ) { + + this.lineTo( points[ i ].x, points[ i ].y ); + + } + + return this; + + }, + + moveTo: function ( x, y ) { + + this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying? + + return this; + + }, + + lineTo: function ( x, y ) { + + const curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) ); + this.curves.push( curve ); + + this.currentPoint.set( x, y ); + + return this; + + }, + + quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) { + + const curve = new QuadraticBezierCurve( + this.currentPoint.clone(), + new Vector2( aCPx, aCPy ), + new Vector2( aX, aY ) + ); + + this.curves.push( curve ); + + this.currentPoint.set( aX, aY ); + + return this; + + }, + + bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) { + + const curve = new CubicBezierCurve( + this.currentPoint.clone(), + new Vector2( aCP1x, aCP1y ), + new Vector2( aCP2x, aCP2y ), + new Vector2( aX, aY ) + ); + + this.curves.push( curve ); + + this.currentPoint.set( aX, aY ); + + return this; + + }, + + splineThru: function ( pts /*Array of Vector*/ ) { + + const npts = [ this.currentPoint.clone() ].concat( pts ); + + const curve = new SplineCurve( npts ); + this.curves.push( curve ); + + this.currentPoint.copy( pts[ pts.length - 1 ] ); + + return this; + + }, + + arc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + const x0 = this.currentPoint.x; + const y0 = this.currentPoint.y; + + this.absarc( aX + x0, aY + y0, aRadius, + aStartAngle, aEndAngle, aClockwise ); + + return this; + + }, + + absarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise ); + + return this; + + }, + + ellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) { + + const x0 = this.currentPoint.x; + const y0 = this.currentPoint.y; + + this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ); + + return this; + + }, + + absellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) { + + const curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ); + + if ( this.curves.length > 0 ) { + + // if a previous curve is present, attempt to join + const firstPoint = curve.getPoint( 0 ); + + if ( ! firstPoint.equals( this.currentPoint ) ) { + + this.lineTo( firstPoint.x, firstPoint.y ); + + } + + } + + this.curves.push( curve ); + + const lastPoint = curve.getPoint( 1 ); + this.currentPoint.copy( lastPoint ); + + return this; + + }, + + copy: function ( source ) { + + CurvePath.prototype.copy.call( this, source ); + + this.currentPoint.copy( source.currentPoint ); + + return this; + + }, + + toJSON: function () { + + const data = CurvePath.prototype.toJSON.call( this ); + + data.currentPoint = this.currentPoint.toArray(); + + return data; + + }, + + fromJSON: function ( json ) { + + CurvePath.prototype.fromJSON.call( this, json ); + + this.currentPoint.fromArray( json.currentPoint ); + + return this; + + } + +} ); + +function Shape( points ) { + + Path.call( this, points ); + + this.uuid = MathUtils.generateUUID(); + + this.type = 'Shape'; + + this.holes = []; + +} + +Shape.prototype = Object.assign( Object.create( Path.prototype ), { + + constructor: Shape, + + getPointsHoles: function ( divisions ) { + + const holesPts = []; + + for ( let i = 0, l = this.holes.length; i < l; i ++ ) { + + holesPts[ i ] = this.holes[ i ].getPoints( divisions ); + + } + + return holesPts; + + }, + + // get points of shape and holes (keypoints based on segments parameter) + + extractPoints: function ( divisions ) { + + return { + + shape: this.getPoints( divisions ), + holes: this.getPointsHoles( divisions ) + + }; + + }, + + copy: function ( source ) { + + Path.prototype.copy.call( this, source ); + + this.holes = []; + + for ( let i = 0, l = source.holes.length; i < l; i ++ ) { + + const hole = source.holes[ i ]; + + this.holes.push( hole.clone() ); + + } + + return this; + + }, + + toJSON: function () { + + const data = Path.prototype.toJSON.call( this ); + + data.uuid = this.uuid; + data.holes = []; + + for ( let i = 0, l = this.holes.length; i < l; i ++ ) { + + const hole = this.holes[ i ]; + data.holes.push( hole.toJSON() ); + + } + + return data; + + }, + + fromJSON: function ( json ) { + + Path.prototype.fromJSON.call( this, json ); + + this.uuid = json.uuid; + this.holes = []; + + for ( let i = 0, l = json.holes.length; i < l; i ++ ) { + + const hole = json.holes[ i ]; + this.holes.push( new Path().fromJSON( hole ) ); + + } + + return this; + + } + +} ); + +function Light( color, intensity = 1 ) { + + Object3D.call( this ); + + this.type = 'Light'; + + this.color = new Color( color ); + this.intensity = intensity; + +} + +Light.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Light, + + isLight: true, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + this.intensity = source.intensity; + + return this; + + }, + + toJSON: function ( meta ) { + + const data = Object3D.prototype.toJSON.call( this, meta ); + + data.object.color = this.color.getHex(); + data.object.intensity = this.intensity; + + if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex(); + + if ( this.distance !== undefined ) data.object.distance = this.distance; + if ( this.angle !== undefined ) data.object.angle = this.angle; + if ( this.decay !== undefined ) data.object.decay = this.decay; + if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra; + + if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON(); + + return data; + + } + +} ); + +function HemisphereLight( skyColor, groundColor, intensity ) { + + Light.call( this, skyColor, intensity ); + + this.type = 'HemisphereLight'; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.groundColor = new Color( groundColor ); + +} + +HemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: HemisphereLight, + + isHemisphereLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.groundColor.copy( source.groundColor ); + + return this; + + } + +} ); + +function LightShadow( camera ) { + + this.camera = camera; + + this.bias = 0; + this.normalBias = 0; + this.radius = 1; + + this.mapSize = new Vector2( 512, 512 ); + + this.map = null; + this.mapPass = null; + this.matrix = new Matrix4(); + + this.autoUpdate = true; + this.needsUpdate = false; + + this._frustum = new Frustum(); + this._frameExtents = new Vector2( 1, 1 ); + + this._viewportCount = 1; + + this._viewports = [ + + new Vector4( 0, 0, 1, 1 ) + + ]; + +} + +Object.assign( LightShadow.prototype, { + + _projScreenMatrix: new Matrix4(), + + _lightPositionWorld: new Vector3(), + + _lookTarget: new Vector3(), + + getViewportCount: function () { + + return this._viewportCount; + + }, + + getFrustum: function () { + + return this._frustum; + + }, + + updateMatrices: function ( light ) { + + const shadowCamera = this.camera, + shadowMatrix = this.matrix, + projScreenMatrix = this._projScreenMatrix, + lookTarget = this._lookTarget, + lightPositionWorld = this._lightPositionWorld; + + lightPositionWorld.setFromMatrixPosition( light.matrixWorld ); + shadowCamera.position.copy( lightPositionWorld ); + + lookTarget.setFromMatrixPosition( light.target.matrixWorld ); + shadowCamera.lookAt( lookTarget ); + shadowCamera.updateMatrixWorld(); + + projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse ); + this._frustum.setFromProjectionMatrix( projScreenMatrix ); + + shadowMatrix.set( + 0.5, 0.0, 0.0, 0.5, + 0.0, 0.5, 0.0, 0.5, + 0.0, 0.0, 0.5, 0.5, + 0.0, 0.0, 0.0, 1.0 + ); + + shadowMatrix.multiply( shadowCamera.projectionMatrix ); + shadowMatrix.multiply( shadowCamera.matrixWorldInverse ); + + }, + + getViewport: function ( viewportIndex ) { + + return this._viewports[ viewportIndex ]; + + }, + + getFrameExtents: function () { + + return this._frameExtents; + + }, + + copy: function ( source ) { + + this.camera = source.camera.clone(); + + this.bias = source.bias; + this.radius = source.radius; + + this.mapSize.copy( source.mapSize ); + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + toJSON: function () { + + const object = {}; + + if ( this.bias !== 0 ) object.bias = this.bias; + if ( this.normalBias !== 0 ) object.normalBias = this.normalBias; + if ( this.radius !== 1 ) object.radius = this.radius; + if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray(); + + object.camera = this.camera.toJSON( false ).object; + delete object.camera.matrix; + + return object; + + } + +} ); + +function SpotLightShadow() { + + LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) ); + + this.focus = 1; + +} + +SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), { + + constructor: SpotLightShadow, + + isSpotLightShadow: true, + + updateMatrices: function ( light ) { + + const camera = this.camera; + + const fov = MathUtils.RAD2DEG * 2 * light.angle * this.focus; + const aspect = this.mapSize.width / this.mapSize.height; + const far = light.distance || camera.far; + + if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) { + + camera.fov = fov; + camera.aspect = aspect; + camera.far = far; + camera.updateProjectionMatrix(); + + } + + LightShadow.prototype.updateMatrices.call( this, light ); + + } + +} ); + +function SpotLight( color, intensity, distance, angle, penumbra, decay ) { + + Light.call( this, color, intensity ); + + this.type = 'SpotLight'; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.target = new Object3D(); + + Object.defineProperty( this, 'power', { + get: function () { + + // intensity = power per solid angle. + // ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf + return this.intensity * Math.PI; + + }, + set: function ( power ) { + + // intensity = power per solid angle. + // ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf + this.intensity = power / Math.PI; + + } + } ); + + this.distance = ( distance !== undefined ) ? distance : 0; + this.angle = ( angle !== undefined ) ? angle : Math.PI / 3; + this.penumbra = ( penumbra !== undefined ) ? penumbra : 0; + this.decay = ( decay !== undefined ) ? decay : 1; // for physically correct lights, should be 2. + + this.shadow = new SpotLightShadow(); + +} + +SpotLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: SpotLight, + + isSpotLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.distance = source.distance; + this.angle = source.angle; + this.penumbra = source.penumbra; + this.decay = source.decay; + + this.target = source.target.clone(); + + this.shadow = source.shadow.clone(); + + return this; + + } + +} ); + +function PointLightShadow() { + + LightShadow.call( this, new PerspectiveCamera( 90, 1, 0.5, 500 ) ); + + this._frameExtents = new Vector2( 4, 2 ); + + this._viewportCount = 6; + + this._viewports = [ + // These viewports map a cube-map onto a 2D texture with the + // following orientation: + // + // xzXZ + // y Y + // + // X - Positive x direction + // x - Negative x direction + // Y - Positive y direction + // y - Negative y direction + // Z - Positive z direction + // z - Negative z direction + + // positive X + new Vector4( 2, 1, 1, 1 ), + // negative X + new Vector4( 0, 1, 1, 1 ), + // positive Z + new Vector4( 3, 1, 1, 1 ), + // negative Z + new Vector4( 1, 1, 1, 1 ), + // positive Y + new Vector4( 3, 0, 1, 1 ), + // negative Y + new Vector4( 1, 0, 1, 1 ) + ]; + + this._cubeDirections = [ + new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ), + new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 ) + ]; + + this._cubeUps = [ + new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), + new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ), new Vector3( 0, 0, - 1 ) + ]; + +} + +PointLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), { + + constructor: PointLightShadow, + + isPointLightShadow: true, + + updateMatrices: function ( light, viewportIndex = 0 ) { + + const camera = this.camera, + shadowMatrix = this.matrix, + lightPositionWorld = this._lightPositionWorld, + lookTarget = this._lookTarget, + projScreenMatrix = this._projScreenMatrix; + + lightPositionWorld.setFromMatrixPosition( light.matrixWorld ); + camera.position.copy( lightPositionWorld ); + + lookTarget.copy( camera.position ); + lookTarget.add( this._cubeDirections[ viewportIndex ] ); + camera.up.copy( this._cubeUps[ viewportIndex ] ); + camera.lookAt( lookTarget ); + camera.updateMatrixWorld(); + + shadowMatrix.makeTranslation( - lightPositionWorld.x, - lightPositionWorld.y, - lightPositionWorld.z ); + + projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse ); + this._frustum.setFromProjectionMatrix( projScreenMatrix ); + + } + +} ); + +function PointLight( color, intensity, distance, decay ) { + + Light.call( this, color, intensity ); + + this.type = 'PointLight'; + + Object.defineProperty( this, 'power', { + get: function () { + + // intensity = power per solid angle. + // ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf + return this.intensity * 4 * Math.PI; + + }, + set: function ( power ) { + + // intensity = power per solid angle. + // ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf + this.intensity = power / ( 4 * Math.PI ); + + } + } ); + + this.distance = ( distance !== undefined ) ? distance : 0; + this.decay = ( decay !== undefined ) ? decay : 1; // for physically correct lights, should be 2. + + this.shadow = new PointLightShadow(); + +} + +PointLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: PointLight, + + isPointLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.distance = source.distance; + this.decay = source.decay; + + this.shadow = source.shadow.clone(); + + return this; + + } + +} ); + +function OrthographicCamera( left = - 1, right = 1, top = 1, bottom = - 1, near = 0.1, far = 2000 ) { + + Camera.call( this ); + + this.type = 'OrthographicCamera'; + + this.zoom = 1; + this.view = null; + + this.left = left; + this.right = right; + this.top = top; + this.bottom = bottom; + + this.near = near; + this.far = far; + + this.updateProjectionMatrix(); + +} + +OrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), { + + constructor: OrthographicCamera, + + isOrthographicCamera: true, + + copy: function ( source, recursive ) { + + Camera.prototype.copy.call( this, source, recursive ); + + this.left = source.left; + this.right = source.right; + this.top = source.top; + this.bottom = source.bottom; + this.near = source.near; + this.far = source.far; + + this.zoom = source.zoom; + this.view = source.view === null ? null : Object.assign( {}, source.view ); + + return this; + + }, + + setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) { + + if ( this.view === null ) { + + this.view = { + enabled: true, + fullWidth: 1, + fullHeight: 1, + offsetX: 0, + offsetY: 0, + width: 1, + height: 1 + }; + + } + + this.view.enabled = true; + this.view.fullWidth = fullWidth; + this.view.fullHeight = fullHeight; + this.view.offsetX = x; + this.view.offsetY = y; + this.view.width = width; + this.view.height = height; + + this.updateProjectionMatrix(); + + }, + + clearViewOffset: function () { + + if ( this.view !== null ) { + + this.view.enabled = false; + + } + + this.updateProjectionMatrix(); + + }, + + updateProjectionMatrix: function () { + + const dx = ( this.right - this.left ) / ( 2 * this.zoom ); + const dy = ( this.top - this.bottom ) / ( 2 * this.zoom ); + const cx = ( this.right + this.left ) / 2; + const cy = ( this.top + this.bottom ) / 2; + + let left = cx - dx; + let right = cx + dx; + let top = cy + dy; + let bottom = cy - dy; + + if ( this.view !== null && this.view.enabled ) { + + const scaleW = ( this.right - this.left ) / this.view.fullWidth / this.zoom; + const scaleH = ( this.top - this.bottom ) / this.view.fullHeight / this.zoom; + + left += scaleW * this.view.offsetX; + right = left + scaleW * this.view.width; + top -= scaleH * this.view.offsetY; + bottom = top - scaleH * this.view.height; + + } + + this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far ); + + this.projectionMatrixInverse.copy( this.projectionMatrix ).invert(); + + }, + + toJSON: function ( meta ) { + + const data = Object3D.prototype.toJSON.call( this, meta ); + + data.object.zoom = this.zoom; + data.object.left = this.left; + data.object.right = this.right; + data.object.top = this.top; + data.object.bottom = this.bottom; + data.object.near = this.near; + data.object.far = this.far; + + if ( this.view !== null ) data.object.view = Object.assign( {}, this.view ); + + return data; + + } + +} ); + +function DirectionalLightShadow() { + + LightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) ); + +} + +DirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), { + + constructor: DirectionalLightShadow, + + isDirectionalLightShadow: true, + + updateMatrices: function ( light ) { + + LightShadow.prototype.updateMatrices.call( this, light ); + + } + +} ); + +function DirectionalLight( color, intensity ) { + + Light.call( this, color, intensity ); + + this.type = 'DirectionalLight'; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.target = new Object3D(); + + this.shadow = new DirectionalLightShadow(); + +} + +DirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: DirectionalLight, + + isDirectionalLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.target = source.target.clone(); + + this.shadow = source.shadow.clone(); + + return this; + + } + +} ); + +function AmbientLight( color, intensity ) { + + Light.call( this, color, intensity ); + + this.type = 'AmbientLight'; + +} + +AmbientLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: AmbientLight, + + isAmbientLight: true + +} ); + +function RectAreaLight( color, intensity, width, height ) { + + Light.call( this, color, intensity ); + + this.type = 'RectAreaLight'; + + this.width = ( width !== undefined ) ? width : 10; + this.height = ( height !== undefined ) ? height : 10; + +} + +RectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: RectAreaLight, + + isRectAreaLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.width = source.width; + this.height = source.height; + + return this; + + }, + + toJSON: function ( meta ) { + + const data = Light.prototype.toJSON.call( this, meta ); + + data.object.width = this.width; + data.object.height = this.height; + + return data; + + } + +} ); + +/** + * Primary reference: + * https://graphics.stanford.edu/papers/envmap/envmap.pdf + * + * Secondary reference: + * https://www.ppsloan.org/publications/StupidSH36.pdf + */ + +// 3-band SH defined by 9 coefficients + +class SphericalHarmonics3 { + + constructor() { + + Object.defineProperty( this, 'isSphericalHarmonics3', { value: true } ); + + this.coefficients = []; + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients.push( new Vector3() ); + + } + + } + + set( coefficients ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].copy( coefficients[ i ] ); + + } + + return this; + + } + + zero() { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].set( 0, 0, 0 ); + + } + + return this; + + } + + // get the radiance in the direction of the normal + // target is a Vector3 + getAt( normal, target ) { + + // normal is assumed to be unit length + + const x = normal.x, y = normal.y, z = normal.z; + + const coeff = this.coefficients; + + // band 0 + target.copy( coeff[ 0 ] ).multiplyScalar( 0.282095 ); + + // band 1 + target.addScaledVector( coeff[ 1 ], 0.488603 * y ); + target.addScaledVector( coeff[ 2 ], 0.488603 * z ); + target.addScaledVector( coeff[ 3 ], 0.488603 * x ); + + // band 2 + target.addScaledVector( coeff[ 4 ], 1.092548 * ( x * y ) ); + target.addScaledVector( coeff[ 5 ], 1.092548 * ( y * z ) ); + target.addScaledVector( coeff[ 6 ], 0.315392 * ( 3.0 * z * z - 1.0 ) ); + target.addScaledVector( coeff[ 7 ], 1.092548 * ( x * z ) ); + target.addScaledVector( coeff[ 8 ], 0.546274 * ( x * x - y * y ) ); + + return target; + + } + + // get the irradiance (radiance convolved with cosine lobe) in the direction of the normal + // target is a Vector3 + // https://graphics.stanford.edu/papers/envmap/envmap.pdf + getIrradianceAt( normal, target ) { + + // normal is assumed to be unit length + + const x = normal.x, y = normal.y, z = normal.z; + + const coeff = this.coefficients; + + // band 0 + target.copy( coeff[ 0 ] ).multiplyScalar( 0.886227 ); // π * 0.282095 + + // band 1 + target.addScaledVector( coeff[ 1 ], 2.0 * 0.511664 * y ); // ( 2 * π / 3 ) * 0.488603 + target.addScaledVector( coeff[ 2 ], 2.0 * 0.511664 * z ); + target.addScaledVector( coeff[ 3 ], 2.0 * 0.511664 * x ); + + // band 2 + target.addScaledVector( coeff[ 4 ], 2.0 * 0.429043 * x * y ); // ( π / 4 ) * 1.092548 + target.addScaledVector( coeff[ 5 ], 2.0 * 0.429043 * y * z ); + target.addScaledVector( coeff[ 6 ], 0.743125 * z * z - 0.247708 ); // ( π / 4 ) * 0.315392 * 3 + target.addScaledVector( coeff[ 7 ], 2.0 * 0.429043 * x * z ); + target.addScaledVector( coeff[ 8 ], 0.429043 * ( x * x - y * y ) ); // ( π / 4 ) * 0.546274 + + return target; + + } + + add( sh ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].add( sh.coefficients[ i ] ); + + } + + return this; + + } + + addScaledSH( sh, s ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].addScaledVector( sh.coefficients[ i ], s ); + + } + + return this; + + } + + scale( s ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].multiplyScalar( s ); + + } + + return this; + + } + + lerp( sh, alpha ) { + + for ( let i = 0; i < 9; i ++ ) { + + this.coefficients[ i ].lerp( sh.coefficients[ i ], alpha ); + + } + + return this; + + } + + equals( sh ) { + + for ( let i = 0; i < 9; i ++ ) { + + if ( ! this.coefficients[ i ].equals( sh.coefficients[ i ] ) ) { + + return false; + + } + + } + + return true; + + } + + copy( sh ) { + + return this.set( sh.coefficients ); + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + fromArray( array, offset = 0 ) { + + const coefficients = this.coefficients; + + for ( let i = 0; i < 9; i ++ ) { + + coefficients[ i ].fromArray( array, offset + ( i * 3 ) ); + + } + + return this; + + } + + toArray( array = [], offset = 0 ) { + + const coefficients = this.coefficients; + + for ( let i = 0; i < 9; i ++ ) { + + coefficients[ i ].toArray( array, offset + ( i * 3 ) ); + + } + + return array; + + } + + // evaluate the basis functions + // shBasis is an Array[ 9 ] + static getBasisAt( normal, shBasis ) { + + // normal is assumed to be unit length + + const x = normal.x, y = normal.y, z = normal.z; + + // band 0 + shBasis[ 0 ] = 0.282095; + + // band 1 + shBasis[ 1 ] = 0.488603 * y; + shBasis[ 2 ] = 0.488603 * z; + shBasis[ 3 ] = 0.488603 * x; + + // band 2 + shBasis[ 4 ] = 1.092548 * x * y; + shBasis[ 5 ] = 1.092548 * y * z; + shBasis[ 6 ] = 0.315392 * ( 3 * z * z - 1 ); + shBasis[ 7 ] = 1.092548 * x * z; + shBasis[ 8 ] = 0.546274 * ( x * x - y * y ); + + } + +} + +function LightProbe( sh, intensity ) { + + Light.call( this, undefined, intensity ); + + this.type = 'LightProbe'; + + this.sh = ( sh !== undefined ) ? sh : new SphericalHarmonics3(); + +} + +LightProbe.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: LightProbe, + + isLightProbe: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.sh.copy( source.sh ); + + return this; + + }, + + fromJSON: function ( json ) { + + this.intensity = json.intensity; // TODO: Move this bit to Light.fromJSON(); + this.sh.fromArray( json.sh ); + + return this; + + }, + + toJSON: function ( meta ) { + + const data = Light.prototype.toJSON.call( this, meta ); + + data.object.sh = this.sh.toArray(); + + return data; + + } + +} ); + +function MaterialLoader( manager ) { + + Loader.call( this, manager ); + + this.textures = {}; + +} + +MaterialLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: MaterialLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( scope.manager ); + loader.setPath( scope.path ); + loader.setRequestHeader( scope.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( text ) { + + try { + + onLoad( scope.parse( JSON.parse( text ) ) ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + }, + + parse: function ( json ) { + + const textures = this.textures; + + function getTexture( name ) { + + if ( textures[ name ] === undefined ) { + + console.warn( 'THREE.MaterialLoader: Undefined texture', name ); + + } + + return textures[ name ]; + + } + + const material = new Materials[ json.type ](); + + if ( json.uuid !== undefined ) material.uuid = json.uuid; + if ( json.name !== undefined ) material.name = json.name; + if ( json.color !== undefined && material.color !== undefined ) material.color.setHex( json.color ); + if ( json.roughness !== undefined ) material.roughness = json.roughness; + if ( json.metalness !== undefined ) material.metalness = json.metalness; + if ( json.sheen !== undefined ) material.sheen = new Color().setHex( json.sheen ); + if ( json.emissive !== undefined && material.emissive !== undefined ) material.emissive.setHex( json.emissive ); + if ( json.specular !== undefined && material.specular !== undefined ) material.specular.setHex( json.specular ); + if ( json.shininess !== undefined ) material.shininess = json.shininess; + if ( json.clearcoat !== undefined ) material.clearcoat = json.clearcoat; + if ( json.clearcoatRoughness !== undefined ) material.clearcoatRoughness = json.clearcoatRoughness; + if ( json.fog !== undefined ) material.fog = json.fog; + if ( json.flatShading !== undefined ) material.flatShading = json.flatShading; + if ( json.blending !== undefined ) material.blending = json.blending; + if ( json.combine !== undefined ) material.combine = json.combine; + if ( json.side !== undefined ) material.side = json.side; + if ( json.opacity !== undefined ) material.opacity = json.opacity; + if ( json.transparent !== undefined ) material.transparent = json.transparent; + if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest; + if ( json.depthTest !== undefined ) material.depthTest = json.depthTest; + if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite; + if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite; + + if ( json.stencilWrite !== undefined ) material.stencilWrite = json.stencilWrite; + if ( json.stencilWriteMask !== undefined ) material.stencilWriteMask = json.stencilWriteMask; + if ( json.stencilFunc !== undefined ) material.stencilFunc = json.stencilFunc; + if ( json.stencilRef !== undefined ) material.stencilRef = json.stencilRef; + if ( json.stencilFuncMask !== undefined ) material.stencilFuncMask = json.stencilFuncMask; + if ( json.stencilFail !== undefined ) material.stencilFail = json.stencilFail; + if ( json.stencilZFail !== undefined ) material.stencilZFail = json.stencilZFail; + if ( json.stencilZPass !== undefined ) material.stencilZPass = json.stencilZPass; + + if ( json.wireframe !== undefined ) material.wireframe = json.wireframe; + if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth; + if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap; + if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin; + + if ( json.rotation !== undefined ) material.rotation = json.rotation; + + if ( json.linewidth !== 1 ) material.linewidth = json.linewidth; + if ( json.dashSize !== undefined ) material.dashSize = json.dashSize; + if ( json.gapSize !== undefined ) material.gapSize = json.gapSize; + if ( json.scale !== undefined ) material.scale = json.scale; + + if ( json.polygonOffset !== undefined ) material.polygonOffset = json.polygonOffset; + if ( json.polygonOffsetFactor !== undefined ) material.polygonOffsetFactor = json.polygonOffsetFactor; + if ( json.polygonOffsetUnits !== undefined ) material.polygonOffsetUnits = json.polygonOffsetUnits; + + if ( json.skinning !== undefined ) material.skinning = json.skinning; + if ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets; + if ( json.morphNormals !== undefined ) material.morphNormals = json.morphNormals; + if ( json.dithering !== undefined ) material.dithering = json.dithering; + + if ( json.vertexTangents !== undefined ) material.vertexTangents = json.vertexTangents; + + if ( json.visible !== undefined ) material.visible = json.visible; + + if ( json.toneMapped !== undefined ) material.toneMapped = json.toneMapped; + + if ( json.userData !== undefined ) material.userData = json.userData; + + if ( json.vertexColors !== undefined ) { + + if ( typeof json.vertexColors === 'number' ) { + + material.vertexColors = ( json.vertexColors > 0 ) ? true : false; + + } else { + + material.vertexColors = json.vertexColors; + + } + + } + + // Shader Material + + if ( json.uniforms !== undefined ) { + + for ( const name in json.uniforms ) { + + const uniform = json.uniforms[ name ]; + + material.uniforms[ name ] = {}; + + switch ( uniform.type ) { + + case 't': + material.uniforms[ name ].value = getTexture( uniform.value ); + break; + + case 'c': + material.uniforms[ name ].value = new Color().setHex( uniform.value ); + break; + + case 'v2': + material.uniforms[ name ].value = new Vector2().fromArray( uniform.value ); + break; + + case 'v3': + material.uniforms[ name ].value = new Vector3().fromArray( uniform.value ); + break; + + case 'v4': + material.uniforms[ name ].value = new Vector4().fromArray( uniform.value ); + break; + + case 'm3': + material.uniforms[ name ].value = new Matrix3().fromArray( uniform.value ); + break; + + case 'm4': + material.uniforms[ name ].value = new Matrix4().fromArray( uniform.value ); + break; + + default: + material.uniforms[ name ].value = uniform.value; + + } + + } + + } + + if ( json.defines !== undefined ) material.defines = json.defines; + if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader; + if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader; + + if ( json.extensions !== undefined ) { + + for ( const key in json.extensions ) { + + material.extensions[ key ] = json.extensions[ key ]; + + } + + } + + // Deprecated + + if ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading + + // for PointsMaterial + + if ( json.size !== undefined ) material.size = json.size; + if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation; + + // maps + + if ( json.map !== undefined ) material.map = getTexture( json.map ); + if ( json.matcap !== undefined ) material.matcap = getTexture( json.matcap ); + + if ( json.alphaMap !== undefined ) material.alphaMap = getTexture( json.alphaMap ); + + if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap ); + if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale; + + if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap ); + if ( json.normalMapType !== undefined ) material.normalMapType = json.normalMapType; + if ( json.normalScale !== undefined ) { + + let normalScale = json.normalScale; + + if ( Array.isArray( normalScale ) === false ) { + + // Blender exporter used to export a scalar. See #7459 + + normalScale = [ normalScale, normalScale ]; + + } + + material.normalScale = new Vector2().fromArray( normalScale ); + + } + + if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap ); + if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale; + if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias; + + if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap ); + if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap ); + + if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap ); + if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity; + + if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap ); + + if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap ); + if ( json.envMapIntensity !== undefined ) material.envMapIntensity = json.envMapIntensity; + + if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity; + if ( json.refractionRatio !== undefined ) material.refractionRatio = json.refractionRatio; + + if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap ); + if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity; + + if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap ); + if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity; + + if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap ); + + if ( json.clearcoatMap !== undefined ) material.clearcoatMap = getTexture( json.clearcoatMap ); + if ( json.clearcoatRoughnessMap !== undefined ) material.clearcoatRoughnessMap = getTexture( json.clearcoatRoughnessMap ); + if ( json.clearcoatNormalMap !== undefined ) material.clearcoatNormalMap = getTexture( json.clearcoatNormalMap ); + if ( json.clearcoatNormalScale !== undefined ) material.clearcoatNormalScale = new Vector2().fromArray( json.clearcoatNormalScale ); + + if ( json.transmission !== undefined ) material.transmission = json.transmission; + if ( json.transmissionMap !== undefined ) material.transmissionMap = getTexture( json.transmissionMap ); + + return material; + + }, + + setTextures: function ( value ) { + + this.textures = value; + return this; + + } + +} ); + +const LoaderUtils = { + + decodeText: function ( array ) { + + if ( typeof TextDecoder !== 'undefined' ) { + + return new TextDecoder().decode( array ); + + } + + // Avoid the String.fromCharCode.apply(null, array) shortcut, which + // throws a "maximum call stack size exceeded" error for large arrays. + + let s = ''; + + for ( let i = 0, il = array.length; i < il; i ++ ) { + + // Implicitly assumes little-endian. + s += String.fromCharCode( array[ i ] ); + + } + + try { + + // merges multi-byte utf-8 characters. + + return decodeURIComponent( escape( s ) ); + + } catch ( e ) { // see #16358 + + return s; + + } + + }, + + extractUrlBase: function ( url ) { + + const index = url.lastIndexOf( '/' ); + + if ( index === - 1 ) return './'; + + return url.substr( 0, index + 1 ); + + } + +}; + +function InstancedBufferGeometry() { + + BufferGeometry.call( this ); + + this.type = 'InstancedBufferGeometry'; + this.instanceCount = Infinity; + +} + +InstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), { + + constructor: InstancedBufferGeometry, + + isInstancedBufferGeometry: true, + + copy: function ( source ) { + + BufferGeometry.prototype.copy.call( this, source ); + + this.instanceCount = source.instanceCount; + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + toJSON: function () { + + const data = BufferGeometry.prototype.toJSON.call( this ); + + data.instanceCount = this.instanceCount; + + data.isInstancedBufferGeometry = true; + + return data; + + } + +} ); + +function InstancedBufferAttribute( array, itemSize, normalized, meshPerAttribute ) { + + if ( typeof ( normalized ) === 'number' ) { + + meshPerAttribute = normalized; + + normalized = false; + + console.error( 'THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.' ); + + } + + BufferAttribute.call( this, array, itemSize, normalized ); + + this.meshPerAttribute = meshPerAttribute || 1; + +} + +InstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), { + + constructor: InstancedBufferAttribute, + + isInstancedBufferAttribute: true, + + copy: function ( source ) { + + BufferAttribute.prototype.copy.call( this, source ); + + this.meshPerAttribute = source.meshPerAttribute; + + return this; + + }, + + toJSON: function () { + + const data = BufferAttribute.prototype.toJSON.call( this ); + + data.meshPerAttribute = this.meshPerAttribute; + + data.isInstancedBufferAttribute = true; + + return data; + + } + +} ); + +function BufferGeometryLoader( manager ) { + + Loader.call( this, manager ); + +} + +BufferGeometryLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: BufferGeometryLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( scope.manager ); + loader.setPath( scope.path ); + loader.setRequestHeader( scope.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( text ) { + + try { + + onLoad( scope.parse( JSON.parse( text ) ) ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + }, + + parse: function ( json ) { + + const interleavedBufferMap = {}; + const arrayBufferMap = {}; + + function getInterleavedBuffer( json, uuid ) { + + if ( interleavedBufferMap[ uuid ] !== undefined ) return interleavedBufferMap[ uuid ]; + + const interleavedBuffers = json.interleavedBuffers; + const interleavedBuffer = interleavedBuffers[ uuid ]; + + const buffer = getArrayBuffer( json, interleavedBuffer.buffer ); + + const array = getTypedArray( interleavedBuffer.type, buffer ); + const ib = new InterleavedBuffer( array, interleavedBuffer.stride ); + ib.uuid = interleavedBuffer.uuid; + + interleavedBufferMap[ uuid ] = ib; + + return ib; + + } + + function getArrayBuffer( json, uuid ) { + + if ( arrayBufferMap[ uuid ] !== undefined ) return arrayBufferMap[ uuid ]; + + const arrayBuffers = json.arrayBuffers; + const arrayBuffer = arrayBuffers[ uuid ]; + + const ab = new Uint32Array( arrayBuffer ).buffer; + + arrayBufferMap[ uuid ] = ab; + + return ab; + + } + + const geometry = json.isInstancedBufferGeometry ? new InstancedBufferGeometry() : new BufferGeometry(); + + const index = json.data.index; + + if ( index !== undefined ) { + + const typedArray = getTypedArray( index.type, index.array ); + geometry.setIndex( new BufferAttribute( typedArray, 1 ) ); + + } + + const attributes = json.data.attributes; + + for ( const key in attributes ) { + + const attribute = attributes[ key ]; + let bufferAttribute; + + if ( attribute.isInterleavedBufferAttribute ) { + + const interleavedBuffer = getInterleavedBuffer( json.data, attribute.data ); + bufferAttribute = new InterleavedBufferAttribute( interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized ); + + } else { + + const typedArray = getTypedArray( attribute.type, attribute.array ); + const bufferAttributeConstr = attribute.isInstancedBufferAttribute ? InstancedBufferAttribute : BufferAttribute; + bufferAttribute = new bufferAttributeConstr( typedArray, attribute.itemSize, attribute.normalized ); + + } + + if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name; + geometry.setAttribute( key, bufferAttribute ); + + } + + const morphAttributes = json.data.morphAttributes; + + if ( morphAttributes ) { + + for ( const key in morphAttributes ) { + + const attributeArray = morphAttributes[ key ]; + + const array = []; + + for ( let i = 0, il = attributeArray.length; i < il; i ++ ) { + + const attribute = attributeArray[ i ]; + let bufferAttribute; + + if ( attribute.isInterleavedBufferAttribute ) { + + const interleavedBuffer = getInterleavedBuffer( json.data, attribute.data ); + bufferAttribute = new InterleavedBufferAttribute( interleavedBuffer, attribute.itemSize, attribute.offset, attribute.normalized ); + + } else { + + const typedArray = getTypedArray( attribute.type, attribute.array ); + bufferAttribute = new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ); + + } + + if ( attribute.name !== undefined ) bufferAttribute.name = attribute.name; + array.push( bufferAttribute ); + + } + + geometry.morphAttributes[ key ] = array; + + } + + } + + const morphTargetsRelative = json.data.morphTargetsRelative; + + if ( morphTargetsRelative ) { + + geometry.morphTargetsRelative = true; + + } + + const groups = json.data.groups || json.data.drawcalls || json.data.offsets; + + if ( groups !== undefined ) { + + for ( let i = 0, n = groups.length; i !== n; ++ i ) { + + const group = groups[ i ]; + + geometry.addGroup( group.start, group.count, group.materialIndex ); + + } + + } + + const boundingSphere = json.data.boundingSphere; + + if ( boundingSphere !== undefined ) { + + const center = new Vector3(); + + if ( boundingSphere.center !== undefined ) { + + center.fromArray( boundingSphere.center ); + + } + + geometry.boundingSphere = new Sphere( center, boundingSphere.radius ); + + } + + if ( json.name ) geometry.name = json.name; + if ( json.userData ) geometry.userData = json.userData; + + return geometry; + + } + +} ); + +class ObjectLoader extends Loader { + + constructor( manager ) { + + super( manager ); + + } + + load( url, onLoad, onProgress, onError ) { + + const scope = this; + + const path = ( this.path === '' ) ? LoaderUtils.extractUrlBase( url ) : this.path; + this.resourcePath = this.resourcePath || path; + + const loader = new FileLoader( this.manager ); + loader.setPath( this.path ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( this.withCredentials ); + loader.load( url, function ( text ) { + + let json = null; + + try { + + json = JSON.parse( text ); + + } catch ( error ) { + + if ( onError !== undefined ) onError( error ); + + console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message ); + + return; + + } + + const metadata = json.metadata; + + if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) { + + console.error( 'THREE.ObjectLoader: Can\'t load ' + url ); + return; + + } + + scope.parse( json, onLoad ); + + }, onProgress, onError ); + + } + + parse( json, onLoad ) { + + const animations = this.parseAnimations( json.animations ); + const shapes = this.parseShapes( json.shapes ); + const geometries = this.parseGeometries( json.geometries, shapes ); + + const images = this.parseImages( json.images, function () { + + if ( onLoad !== undefined ) onLoad( object ); + + } ); + + const textures = this.parseTextures( json.textures, images ); + const materials = this.parseMaterials( json.materials, textures ); + + const object = this.parseObject( json.object, geometries, materials, animations ); + const skeletons = this.parseSkeletons( json.skeletons, object ); + + this.bindSkeletons( object, skeletons ); + + // + + if ( onLoad !== undefined ) { + + let hasImages = false; + + for ( const uuid in images ) { + + if ( images[ uuid ] instanceof HTMLImageElement ) { + + hasImages = true; + break; + + } + + } + + if ( hasImages === false ) onLoad( object ); + + } + + return object; + + } + + parseShapes( json ) { + + const shapes = {}; + + if ( json !== undefined ) { + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + const shape = new Shape().fromJSON( json[ i ] ); + + shapes[ shape.uuid ] = shape; + + } + + } + + return shapes; + + } + + parseSkeletons( json, object ) { + + const skeletons = {}; + const bones = {}; + + // generate bone lookup table + + object.traverse( function ( child ) { + + if ( child.isBone ) bones[ child.uuid ] = child; + + } ); + + // create skeletons + + if ( json !== undefined ) { + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + const skeleton = new Skeleton().fromJSON( json[ i ], bones ); + + skeletons[ skeleton.uuid ] = skeleton; + + } + + } + + return skeletons; + + } + + parseGeometries( json, shapes ) { + + const geometries = {}; + let geometryShapes; + + if ( json !== undefined ) { + + const bufferGeometryLoader = new BufferGeometryLoader(); + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + let geometry; + const data = json[ i ]; + + switch ( data.type ) { + + case 'PlaneGeometry': + case 'PlaneBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.width, + data.height, + data.widthSegments, + data.heightSegments + ); + + break; + + case 'BoxGeometry': + case 'BoxBufferGeometry': + case 'CubeGeometry': // backwards compatible + + geometry = new Geometries[ data.type ]( + data.width, + data.height, + data.depth, + data.widthSegments, + data.heightSegments, + data.depthSegments + ); + + break; + + case 'CircleGeometry': + case 'CircleBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.segments, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'CylinderGeometry': + case 'CylinderBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radiusTop, + data.radiusBottom, + data.height, + data.radialSegments, + data.heightSegments, + data.openEnded, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'ConeGeometry': + case 'ConeBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.height, + data.radialSegments, + data.heightSegments, + data.openEnded, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'SphereGeometry': + case 'SphereBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.widthSegments, + data.heightSegments, + data.phiStart, + data.phiLength, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'DodecahedronGeometry': + case 'DodecahedronBufferGeometry': + case 'IcosahedronGeometry': + case 'IcosahedronBufferGeometry': + case 'OctahedronGeometry': + case 'OctahedronBufferGeometry': + case 'TetrahedronGeometry': + case 'TetrahedronBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.detail + ); + + break; + + case 'RingGeometry': + case 'RingBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.innerRadius, + data.outerRadius, + data.thetaSegments, + data.phiSegments, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'TorusGeometry': + case 'TorusBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.tube, + data.radialSegments, + data.tubularSegments, + data.arc + ); + + break; + + case 'TorusKnotGeometry': + case 'TorusKnotBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.tube, + data.tubularSegments, + data.radialSegments, + data.p, + data.q + ); + + break; + + case 'TubeGeometry': + case 'TubeBufferGeometry': + + // This only works for built-in curves (e.g. CatmullRomCurve3). + // User defined curves or instances of CurvePath will not be deserialized. + geometry = new Geometries[ data.type ]( + new Curves[ data.path.type ]().fromJSON( data.path ), + data.tubularSegments, + data.radius, + data.radialSegments, + data.closed + ); + + break; + + case 'LatheGeometry': + case 'LatheBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.points, + data.segments, + data.phiStart, + data.phiLength + ); + + break; + + case 'PolyhedronGeometry': + case 'PolyhedronBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.vertices, + data.indices, + data.radius, + data.details + ); + + break; + + case 'ShapeGeometry': + case 'ShapeBufferGeometry': + + geometryShapes = []; + + for ( let j = 0, jl = data.shapes.length; j < jl; j ++ ) { + + const shape = shapes[ data.shapes[ j ] ]; + + geometryShapes.push( shape ); + + } + + geometry = new Geometries[ data.type ]( + geometryShapes, + data.curveSegments + ); + + break; + + + case 'ExtrudeGeometry': + case 'ExtrudeBufferGeometry': + + geometryShapes = []; + + for ( let j = 0, jl = data.shapes.length; j < jl; j ++ ) { + + const shape = shapes[ data.shapes[ j ] ]; + + geometryShapes.push( shape ); + + } + + const extrudePath = data.options.extrudePath; + + if ( extrudePath !== undefined ) { + + data.options.extrudePath = new Curves[ extrudePath.type ]().fromJSON( extrudePath ); + + } + + geometry = new Geometries[ data.type ]( + geometryShapes, + data.options + ); + + break; + + case 'BufferGeometry': + case 'InstancedBufferGeometry': + + geometry = bufferGeometryLoader.parse( data ); + + break; + + case 'Geometry': + + console.error( 'THREE.ObjectLoader: Loading "Geometry" is not supported anymore.' ); + + break; + + default: + + console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' ); + + continue; + + } + + geometry.uuid = data.uuid; + + if ( data.name !== undefined ) geometry.name = data.name; + if ( geometry.isBufferGeometry === true && data.userData !== undefined ) geometry.userData = data.userData; + + geometries[ data.uuid ] = geometry; + + } + + } + + return geometries; + + } + + parseMaterials( json, textures ) { + + const cache = {}; // MultiMaterial + const materials = {}; + + if ( json !== undefined ) { + + const loader = new MaterialLoader(); + loader.setTextures( textures ); + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + const data = json[ i ]; + + if ( data.type === 'MultiMaterial' ) { + + // Deprecated + + const array = []; + + for ( let j = 0; j < data.materials.length; j ++ ) { + + const material = data.materials[ j ]; + + if ( cache[ material.uuid ] === undefined ) { + + cache[ material.uuid ] = loader.parse( material ); + + } + + array.push( cache[ material.uuid ] ); + + } + + materials[ data.uuid ] = array; + + } else { + + if ( cache[ data.uuid ] === undefined ) { + + cache[ data.uuid ] = loader.parse( data ); + + } + + materials[ data.uuid ] = cache[ data.uuid ]; + + } + + } + + } + + return materials; + + } + + parseAnimations( json ) { + + const animations = {}; + + if ( json !== undefined ) { + + for ( let i = 0; i < json.length; i ++ ) { + + const data = json[ i ]; + + const clip = AnimationClip.parse( data ); + + animations[ clip.uuid ] = clip; + + } + + } + + return animations; + + } + + parseImages( json, onLoad ) { + + const scope = this; + const images = {}; + + let loader; + + function loadImage( url ) { + + scope.manager.itemStart( url ); + + return loader.load( url, function () { + + scope.manager.itemEnd( url ); + + }, undefined, function () { + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + } ); + + } + + function deserializeImage( image ) { + + if ( typeof image === 'string' ) { + + const url = image; + + const path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( url ) ? url : scope.resourcePath + url; + + return loadImage( path ); + + } else { + + if ( image.data ) { + + return { + data: getTypedArray( image.type, image.data ), + width: image.width, + height: image.height + }; + + } else { + + return null; + + } + + } + + } + + if ( json !== undefined && json.length > 0 ) { + + const manager = new LoadingManager( onLoad ); + + loader = new ImageLoader( manager ); + loader.setCrossOrigin( this.crossOrigin ); + + for ( let i = 0, il = json.length; i < il; i ++ ) { + + const image = json[ i ]; + const url = image.url; + + if ( Array.isArray( url ) ) { + + // load array of images e.g CubeTexture + + images[ image.uuid ] = []; + + for ( let j = 0, jl = url.length; j < jl; j ++ ) { + + const currentUrl = url[ j ]; + + const deserializedImage = deserializeImage( currentUrl ); + + if ( deserializedImage !== null ) { + + if ( deserializedImage instanceof HTMLImageElement ) { + + images[ image.uuid ].push( deserializedImage ); + + } else { + + // special case: handle array of data textures for cube textures + + images[ image.uuid ].push( new DataTexture( deserializedImage.data, deserializedImage.width, deserializedImage.height ) ); + + } + + } + + } + + } else { + + // load single image + + const deserializedImage = deserializeImage( image.url ); + + if ( deserializedImage !== null ) { + + images[ image.uuid ] = deserializedImage; + + } + + } + + } + + } + + return images; + + } + + parseTextures( json, images ) { + + function parseConstant( value, type ) { + + if ( typeof value === 'number' ) return value; + + console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value ); + + return type[ value ]; + + } + + const textures = {}; + + if ( json !== undefined ) { + + for ( let i = 0, l = json.length; i < l; i ++ ) { + + const data = json[ i ]; + + if ( data.image === undefined ) { + + console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid ); + + } + + if ( images[ data.image ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined image', data.image ); + + } + + let texture; + const image = images[ data.image ]; + + if ( Array.isArray( image ) ) { + + texture = new CubeTexture( image ); + + if ( image.length === 6 ) texture.needsUpdate = true; + + } else { + + if ( image && image.data ) { + + texture = new DataTexture( image.data, image.width, image.height ); + + } else { + + texture = new Texture( image ); + + } + + if ( image ) texture.needsUpdate = true; // textures can have undefined image data + + } + + texture.uuid = data.uuid; + + if ( data.name !== undefined ) texture.name = data.name; + + if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING ); + + if ( data.offset !== undefined ) texture.offset.fromArray( data.offset ); + if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat ); + if ( data.center !== undefined ) texture.center.fromArray( data.center ); + if ( data.rotation !== undefined ) texture.rotation = data.rotation; + + if ( data.wrap !== undefined ) { + + texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING ); + texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING ); + + } + + if ( data.format !== undefined ) texture.format = data.format; + if ( data.type !== undefined ) texture.type = data.type; + if ( data.encoding !== undefined ) texture.encoding = data.encoding; + + if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER ); + if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER ); + if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy; + + if ( data.flipY !== undefined ) texture.flipY = data.flipY; + + if ( data.premultiplyAlpha !== undefined ) texture.premultiplyAlpha = data.premultiplyAlpha; + if ( data.unpackAlignment !== undefined ) texture.unpackAlignment = data.unpackAlignment; + + textures[ data.uuid ] = texture; + + } + + } + + return textures; + + } + + parseObject( data, geometries, materials, animations ) { + + let object; + + function getGeometry( name ) { + + if ( geometries[ name ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined geometry', name ); + + } + + return geometries[ name ]; + + } + + function getMaterial( name ) { + + if ( name === undefined ) return undefined; + + if ( Array.isArray( name ) ) { + + const array = []; + + for ( let i = 0, l = name.length; i < l; i ++ ) { + + const uuid = name[ i ]; + + if ( materials[ uuid ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined material', uuid ); + + } + + array.push( materials[ uuid ] ); + + } + + return array; + + } + + if ( materials[ name ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined material', name ); + + } + + return materials[ name ]; + + } + + let geometry, material; + + switch ( data.type ) { + + case 'Scene': + + object = new Scene(); + + if ( data.background !== undefined ) { + + if ( Number.isInteger( data.background ) ) { + + object.background = new Color( data.background ); + + } + + } + + if ( data.fog !== undefined ) { + + if ( data.fog.type === 'Fog' ) { + + object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far ); + + } else if ( data.fog.type === 'FogExp2' ) { + + object.fog = new FogExp2( data.fog.color, data.fog.density ); + + } + + } + + break; + + case 'PerspectiveCamera': + + object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far ); + + if ( data.focus !== undefined ) object.focus = data.focus; + if ( data.zoom !== undefined ) object.zoom = data.zoom; + if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge; + if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset; + if ( data.view !== undefined ) object.view = Object.assign( {}, data.view ); + + break; + + case 'OrthographicCamera': + + object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far ); + + if ( data.zoom !== undefined ) object.zoom = data.zoom; + if ( data.view !== undefined ) object.view = Object.assign( {}, data.view ); + + break; + + case 'AmbientLight': + + object = new AmbientLight( data.color, data.intensity ); + + break; + + case 'DirectionalLight': + + object = new DirectionalLight( data.color, data.intensity ); + + break; + + case 'PointLight': + + object = new PointLight( data.color, data.intensity, data.distance, data.decay ); + + break; + + case 'RectAreaLight': + + object = new RectAreaLight( data.color, data.intensity, data.width, data.height ); + + break; + + case 'SpotLight': + + object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay ); + + break; + + case 'HemisphereLight': + + object = new HemisphereLight( data.color, data.groundColor, data.intensity ); + + break; + + case 'LightProbe': + + object = new LightProbe().fromJSON( data ); + + break; + + case 'SkinnedMesh': + + geometry = getGeometry( data.geometry ); + material = getMaterial( data.material ); + + object = new SkinnedMesh( geometry, material ); + + if ( data.bindMode !== undefined ) object.bindMode = data.bindMode; + if ( data.bindMatrix !== undefined ) object.bindMatrix.fromArray( data.bindMatrix ); + if ( data.skeleton !== undefined ) object.skeleton = data.skeleton; + + break; + + case 'Mesh': + + geometry = getGeometry( data.geometry ); + material = getMaterial( data.material ); + + object = new Mesh( geometry, material ); + + break; + + case 'InstancedMesh': + + geometry = getGeometry( data.geometry ); + material = getMaterial( data.material ); + const count = data.count; + const instanceMatrix = data.instanceMatrix; + + object = new InstancedMesh( geometry, material, count ); + object.instanceMatrix = new BufferAttribute( new Float32Array( instanceMatrix.array ), 16 ); + + break; + + case 'LOD': + + object = new LOD(); + + break; + + case 'Line': + + object = new Line( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'LineLoop': + + object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'LineSegments': + + object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'PointCloud': + case 'Points': + + object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'Sprite': + + object = new Sprite( getMaterial( data.material ) ); + + break; + + case 'Group': + + object = new Group(); + + break; + + case 'Bone': + + object = new Bone(); + + break; + + default: + + object = new Object3D(); + + } + + object.uuid = data.uuid; + + if ( data.name !== undefined ) object.name = data.name; + + if ( data.matrix !== undefined ) { + + object.matrix.fromArray( data.matrix ); + + if ( data.matrixAutoUpdate !== undefined ) object.matrixAutoUpdate = data.matrixAutoUpdate; + if ( object.matrixAutoUpdate ) object.matrix.decompose( object.position, object.quaternion, object.scale ); + + } else { + + if ( data.position !== undefined ) object.position.fromArray( data.position ); + if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation ); + if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion ); + if ( data.scale !== undefined ) object.scale.fromArray( data.scale ); + + } + + if ( data.castShadow !== undefined ) object.castShadow = data.castShadow; + if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow; + + if ( data.shadow ) { + + if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias; + if ( data.shadow.normalBias !== undefined ) object.shadow.normalBias = data.shadow.normalBias; + if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius; + if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize ); + if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera ); + + } + + if ( data.visible !== undefined ) object.visible = data.visible; + if ( data.frustumCulled !== undefined ) object.frustumCulled = data.frustumCulled; + if ( data.renderOrder !== undefined ) object.renderOrder = data.renderOrder; + if ( data.userData !== undefined ) object.userData = data.userData; + if ( data.layers !== undefined ) object.layers.mask = data.layers; + + if ( data.children !== undefined ) { + + const children = data.children; + + for ( let i = 0; i < children.length; i ++ ) { + + object.add( this.parseObject( children[ i ], geometries, materials, animations ) ); + + } + + } + + if ( data.animations !== undefined ) { + + const objectAnimations = data.animations; + + for ( let i = 0; i < objectAnimations.length; i ++ ) { + + const uuid = objectAnimations[ i ]; + + object.animations.push( animations[ uuid ] ); + + } + + } + + if ( data.type === 'LOD' ) { + + if ( data.autoUpdate !== undefined ) object.autoUpdate = data.autoUpdate; + + const levels = data.levels; + + for ( let l = 0; l < levels.length; l ++ ) { + + const level = levels[ l ]; + const child = object.getObjectByProperty( 'uuid', level.object ); + + if ( child !== undefined ) { + + object.addLevel( child, level.distance ); + + } + + } + + } + + return object; + + } + + bindSkeletons( object, skeletons ) { + + if ( Object.keys( skeletons ).length === 0 ) return; + + object.traverse( function ( child ) { + + if ( child.isSkinnedMesh === true && child.skeleton !== undefined ) { + + const skeleton = skeletons[ child.skeleton ]; + + if ( skeleton === undefined ) { + + console.warn( 'THREE.ObjectLoader: No skeleton found with UUID:', child.skeleton ); + + } else { + + child.bind( skeleton, child.bindMatrix ); + + } + + } + + } ); + + } + + /* DEPRECATED */ + + setTexturePath( value ) { + + console.warn( 'THREE.ObjectLoader: .setTexturePath() has been renamed to .setResourcePath().' ); + return this.setResourcePath( value ); + + } + +} + +const TEXTURE_MAPPING = { + UVMapping: UVMapping, + CubeReflectionMapping: CubeReflectionMapping, + CubeRefractionMapping: CubeRefractionMapping, + EquirectangularReflectionMapping: EquirectangularReflectionMapping, + EquirectangularRefractionMapping: EquirectangularRefractionMapping, + CubeUVReflectionMapping: CubeUVReflectionMapping, + CubeUVRefractionMapping: CubeUVRefractionMapping +}; + +const TEXTURE_WRAPPING = { + RepeatWrapping: RepeatWrapping, + ClampToEdgeWrapping: ClampToEdgeWrapping, + MirroredRepeatWrapping: MirroredRepeatWrapping +}; + +const TEXTURE_FILTER = { + NearestFilter: NearestFilter, + NearestMipmapNearestFilter: NearestMipmapNearestFilter, + NearestMipmapLinearFilter: NearestMipmapLinearFilter, + LinearFilter: LinearFilter, + LinearMipmapNearestFilter: LinearMipmapNearestFilter, + LinearMipmapLinearFilter: LinearMipmapLinearFilter +}; + +function ImageBitmapLoader( manager ) { + + if ( typeof createImageBitmap === 'undefined' ) { + + console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' ); + + } + + if ( typeof fetch === 'undefined' ) { + + console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' ); + + } + + Loader.call( this, manager ); + + this.options = { premultiplyAlpha: 'none' }; + +} + +ImageBitmapLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: ImageBitmapLoader, + + isImageBitmapLoader: true, + + setOptions: function setOptions( options ) { + + this.options = options; + + return this; + + }, + + load: function ( url, onLoad, onProgress, onError ) { + + if ( url === undefined ) url = ''; + + if ( this.path !== undefined ) url = this.path + url; + + url = this.manager.resolveURL( url ); + + const scope = this; + + const cached = Cache.get( url ); + + if ( cached !== undefined ) { + + scope.manager.itemStart( url ); + + setTimeout( function () { + + if ( onLoad ) onLoad( cached ); + + scope.manager.itemEnd( url ); + + }, 0 ); + + return cached; + + } + + const fetchOptions = {}; + fetchOptions.credentials = ( this.crossOrigin === 'anonymous' ) ? 'same-origin' : 'include'; + + fetch( url, fetchOptions ).then( function ( res ) { + + return res.blob(); + + } ).then( function ( blob ) { + + return createImageBitmap( blob, scope.options ); + + } ).then( function ( imageBitmap ) { + + Cache.add( url, imageBitmap ); + + if ( onLoad ) onLoad( imageBitmap ); + + scope.manager.itemEnd( url ); + + } ).catch( function ( e ) { + + if ( onError ) onError( e ); + + scope.manager.itemError( url ); + scope.manager.itemEnd( url ); + + } ); + + scope.manager.itemStart( url ); + + } + +} ); + +function ShapePath() { + + this.type = 'ShapePath'; + + this.color = new Color(); + + this.subPaths = []; + this.currentPath = null; + +} + +Object.assign( ShapePath.prototype, { + + moveTo: function ( x, y ) { + + this.currentPath = new Path(); + this.subPaths.push( this.currentPath ); + this.currentPath.moveTo( x, y ); + + return this; + + }, + + lineTo: function ( x, y ) { + + this.currentPath.lineTo( x, y ); + + return this; + + }, + + quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) { + + this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY ); + + return this; + + }, + + bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) { + + this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ); + + return this; + + }, + + splineThru: function ( pts ) { + + this.currentPath.splineThru( pts ); + + return this; + + }, + + toShapes: function ( isCCW, noHoles ) { + + function toShapesNoHoles( inSubpaths ) { + + const shapes = []; + + for ( let i = 0, l = inSubpaths.length; i < l; i ++ ) { + + const tmpPath = inSubpaths[ i ]; + + const tmpShape = new Shape(); + tmpShape.curves = tmpPath.curves; + + shapes.push( tmpShape ); + + } + + return shapes; + + } + + function isPointInsidePolygon( inPt, inPolygon ) { + + const polyLen = inPolygon.length; + + // inPt on polygon contour => immediate success or + // toggling of inside/outside at every single! intersection point of an edge + // with the horizontal line through inPt, left of inPt + // not counting lowerY endpoints of edges and whole edges on that line + let inside = false; + for ( let p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) { + + let edgeLowPt = inPolygon[ p ]; + let edgeHighPt = inPolygon[ q ]; + + let edgeDx = edgeHighPt.x - edgeLowPt.x; + let edgeDy = edgeHighPt.y - edgeLowPt.y; + + if ( Math.abs( edgeDy ) > Number.EPSILON ) { + + // not parallel + if ( edgeDy < 0 ) { + + edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx; + edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy; + + } + + if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) continue; + + if ( inPt.y === edgeLowPt.y ) { + + if ( inPt.x === edgeLowPt.x ) return true; // inPt is on contour ? + // continue; // no intersection or edgeLowPt => doesn't count !!! + + } else { + + const perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y ); + if ( perpEdge === 0 ) return true; // inPt is on contour ? + if ( perpEdge < 0 ) continue; + inside = ! inside; // true intersection left of inPt + + } + + } else { + + // parallel or collinear + if ( inPt.y !== edgeLowPt.y ) continue; // parallel + // edge lies on the same horizontal line as inPt + if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) || + ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) ) return true; // inPt: Point on contour ! + // continue; + + } + + } + + return inside; + + } + + const isClockWise = ShapeUtils.isClockWise; + + const subPaths = this.subPaths; + if ( subPaths.length === 0 ) return []; + + if ( noHoles === true ) return toShapesNoHoles( subPaths ); + + + let solid, tmpPath, tmpShape; + const shapes = []; + + if ( subPaths.length === 1 ) { + + tmpPath = subPaths[ 0 ]; + tmpShape = new Shape(); + tmpShape.curves = tmpPath.curves; + shapes.push( tmpShape ); + return shapes; + + } + + let holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() ); + holesFirst = isCCW ? ! holesFirst : holesFirst; + + // console.log("Holes first", holesFirst); + + const betterShapeHoles = []; + const newShapes = []; + let newShapeHoles = []; + let mainIdx = 0; + let tmpPoints; + + newShapes[ mainIdx ] = undefined; + newShapeHoles[ mainIdx ] = []; + + for ( let i = 0, l = subPaths.length; i < l; i ++ ) { + + tmpPath = subPaths[ i ]; + tmpPoints = tmpPath.getPoints(); + solid = isClockWise( tmpPoints ); + solid = isCCW ? ! solid : solid; + + if ( solid ) { + + if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) ) mainIdx ++; + + newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints }; + newShapes[ mainIdx ].s.curves = tmpPath.curves; + + if ( holesFirst ) mainIdx ++; + newShapeHoles[ mainIdx ] = []; + + //console.log('cw', i); + + } else { + + newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } ); + + //console.log('ccw', i); + + } + + } + + // only Holes? -> probably all Shapes with wrong orientation + if ( ! newShapes[ 0 ] ) return toShapesNoHoles( subPaths ); + + + if ( newShapes.length > 1 ) { + + let ambiguous = false; + const toChange = []; + + for ( let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) { + + betterShapeHoles[ sIdx ] = []; + + } + + for ( let sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) { + + const sho = newShapeHoles[ sIdx ]; + + for ( let hIdx = 0; hIdx < sho.length; hIdx ++ ) { + + const ho = sho[ hIdx ]; + let hole_unassigned = true; + + for ( let s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) { + + if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) { + + if ( sIdx !== s2Idx ) toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } ); + if ( hole_unassigned ) { + + hole_unassigned = false; + betterShapeHoles[ s2Idx ].push( ho ); + + } else { + + ambiguous = true; + + } + + } + + } + + if ( hole_unassigned ) { + + betterShapeHoles[ sIdx ].push( ho ); + + } + + } + + } + // console.log("ambiguous: ", ambiguous); + + if ( toChange.length > 0 ) { + + // console.log("to change: ", toChange); + if ( ! ambiguous ) newShapeHoles = betterShapeHoles; + + } + + } + + let tmpHoles; + + for ( let i = 0, il = newShapes.length; i < il; i ++ ) { + + tmpShape = newShapes[ i ].s; + shapes.push( tmpShape ); + tmpHoles = newShapeHoles[ i ]; + + for ( let j = 0, jl = tmpHoles.length; j < jl; j ++ ) { + + tmpShape.holes.push( tmpHoles[ j ].h ); + + } + + } + + //console.log("shape", shapes); + + return shapes; + + } + +} ); + +function Font( data ) { + + this.type = 'Font'; + + this.data = data; + +} + +Object.assign( Font.prototype, { + + isFont: true, + + generateShapes: function ( text, size = 100 ) { + + const shapes = []; + const paths = createPaths( text, size, this.data ); + + for ( let p = 0, pl = paths.length; p < pl; p ++ ) { + + Array.prototype.push.apply( shapes, paths[ p ].toShapes() ); + + } + + return shapes; + + } + +} ); + +function createPaths( text, size, data ) { + + const chars = Array.from ? Array.from( text ) : String( text ).split( '' ); // workaround for IE11, see #13988 + const scale = size / data.resolution; + const line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale; + + const paths = []; + + let offsetX = 0, offsetY = 0; + + for ( let i = 0; i < chars.length; i ++ ) { + + const char = chars[ i ]; + + if ( char === '\n' ) { + + offsetX = 0; + offsetY -= line_height; + + } else { + + const ret = createPath( char, scale, offsetX, offsetY, data ); + offsetX += ret.offsetX; + paths.push( ret.path ); + + } + + } + + return paths; + +} + +function createPath( char, scale, offsetX, offsetY, data ) { + + const glyph = data.glyphs[ char ] || data.glyphs[ '?' ]; + + if ( ! glyph ) { + + console.error( 'THREE.Font: character "' + char + '" does not exists in font family ' + data.familyName + '.' ); + + return; + + } + + const path = new ShapePath(); + + let x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2; + + if ( glyph.o ) { + + const outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) ); + + for ( let i = 0, l = outline.length; i < l; ) { + + const action = outline[ i ++ ]; + + switch ( action ) { + + case 'm': // moveTo + + x = outline[ i ++ ] * scale + offsetX; + y = outline[ i ++ ] * scale + offsetY; + + path.moveTo( x, y ); + + break; + + case 'l': // lineTo + + x = outline[ i ++ ] * scale + offsetX; + y = outline[ i ++ ] * scale + offsetY; + + path.lineTo( x, y ); + + break; + + case 'q': // quadraticCurveTo + + cpx = outline[ i ++ ] * scale + offsetX; + cpy = outline[ i ++ ] * scale + offsetY; + cpx1 = outline[ i ++ ] * scale + offsetX; + cpy1 = outline[ i ++ ] * scale + offsetY; + + path.quadraticCurveTo( cpx1, cpy1, cpx, cpy ); + + break; + + case 'b': // bezierCurveTo + + cpx = outline[ i ++ ] * scale + offsetX; + cpy = outline[ i ++ ] * scale + offsetY; + cpx1 = outline[ i ++ ] * scale + offsetX; + cpy1 = outline[ i ++ ] * scale + offsetY; + cpx2 = outline[ i ++ ] * scale + offsetX; + cpy2 = outline[ i ++ ] * scale + offsetY; + + path.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy ); + + break; + + } + + } + + } + + return { offsetX: glyph.ha * scale, path: path }; + +} + +function FontLoader( manager ) { + + Loader.call( this, manager ); + +} + +FontLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: FontLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( this.manager ); + loader.setPath( this.path ); + loader.setRequestHeader( this.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( text ) { + + let json; + + try { + + json = JSON.parse( text ); + + } catch ( e ) { + + console.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' ); + json = JSON.parse( text.substring( 65, text.length - 2 ) ); + + } + + const font = scope.parse( json ); + + if ( onLoad ) onLoad( font ); + + }, onProgress, onError ); + + }, + + parse: function ( json ) { + + return new Font( json ); + + } + +} ); + +let _context; + +const AudioContext = { + + getContext: function () { + + if ( _context === undefined ) { + + _context = new ( window.AudioContext || window.webkitAudioContext )(); + + } + + return _context; + + }, + + setContext: function ( value ) { + + _context = value; + + } + +}; + +function AudioLoader( manager ) { + + Loader.call( this, manager ); + +} + +AudioLoader.prototype = Object.assign( Object.create( Loader.prototype ), { + + constructor: AudioLoader, + + load: function ( url, onLoad, onProgress, onError ) { + + const scope = this; + + const loader = new FileLoader( scope.manager ); + loader.setResponseType( 'arraybuffer' ); + loader.setPath( scope.path ); + loader.setRequestHeader( scope.requestHeader ); + loader.setWithCredentials( scope.withCredentials ); + loader.load( url, function ( buffer ) { + + try { + + // Create a copy of the buffer. The `decodeAudioData` method + // detaches the buffer when complete, preventing reuse. + const bufferCopy = buffer.slice( 0 ); + + const context = AudioContext.getContext(); + context.decodeAudioData( bufferCopy, function ( audioBuffer ) { + + onLoad( audioBuffer ); + + } ); + + } catch ( e ) { + + if ( onError ) { + + onError( e ); + + } else { + + console.error( e ); + + } + + scope.manager.itemError( url ); + + } + + }, onProgress, onError ); + + } + +} ); + +function HemisphereLightProbe( skyColor, groundColor, intensity ) { + + LightProbe.call( this, undefined, intensity ); + + const color1 = new Color().set( skyColor ); + const color2 = new Color().set( groundColor ); + + const sky = new Vector3( color1.r, color1.g, color1.b ); + const ground = new Vector3( color2.r, color2.g, color2.b ); + + // without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI ); + const c0 = Math.sqrt( Math.PI ); + const c1 = c0 * Math.sqrt( 0.75 ); + + this.sh.coefficients[ 0 ].copy( sky ).add( ground ).multiplyScalar( c0 ); + this.sh.coefficients[ 1 ].copy( sky ).sub( ground ).multiplyScalar( c1 ); + +} + +HemisphereLightProbe.prototype = Object.assign( Object.create( LightProbe.prototype ), { + + constructor: HemisphereLightProbe, + + isHemisphereLightProbe: true, + + copy: function ( source ) { // modifying colors not currently supported + + LightProbe.prototype.copy.call( this, source ); + + return this; + + }, + + toJSON: function ( meta ) { + + const data = LightProbe.prototype.toJSON.call( this, meta ); + + // data.sh = this.sh.toArray(); // todo + + return data; + + } + +} ); + +function AmbientLightProbe( color, intensity ) { + + LightProbe.call( this, undefined, intensity ); + + const color1 = new Color().set( color ); + + // without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI ); + this.sh.coefficients[ 0 ].set( color1.r, color1.g, color1.b ).multiplyScalar( 2 * Math.sqrt( Math.PI ) ); + +} + +AmbientLightProbe.prototype = Object.assign( Object.create( LightProbe.prototype ), { + + constructor: AmbientLightProbe, + + isAmbientLightProbe: true, + + copy: function ( source ) { // modifying color not currently supported + + LightProbe.prototype.copy.call( this, source ); + + return this; + + }, + + toJSON: function ( meta ) { + + const data = LightProbe.prototype.toJSON.call( this, meta ); + + // data.sh = this.sh.toArray(); // todo + + return data; + + } + +} ); + +const _eyeRight = new Matrix4(); +const _eyeLeft = new Matrix4(); + +function StereoCamera() { + + this.type = 'StereoCamera'; + + this.aspect = 1; + + this.eyeSep = 0.064; + + this.cameraL = new PerspectiveCamera(); + this.cameraL.layers.enable( 1 ); + this.cameraL.matrixAutoUpdate = false; + + this.cameraR = new PerspectiveCamera(); + this.cameraR.layers.enable( 2 ); + this.cameraR.matrixAutoUpdate = false; + + this._cache = { + focus: null, + fov: null, + aspect: null, + near: null, + far: null, + zoom: null, + eyeSep: null + }; + +} + +Object.assign( StereoCamera.prototype, { + + update: function ( camera ) { + + const cache = this._cache; + + const needsUpdate = cache.focus !== camera.focus || cache.fov !== camera.fov || + cache.aspect !== camera.aspect * this.aspect || cache.near !== camera.near || + cache.far !== camera.far || cache.zoom !== camera.zoom || cache.eyeSep !== this.eyeSep; + + if ( needsUpdate ) { + + cache.focus = camera.focus; + cache.fov = camera.fov; + cache.aspect = camera.aspect * this.aspect; + cache.near = camera.near; + cache.far = camera.far; + cache.zoom = camera.zoom; + cache.eyeSep = this.eyeSep; + + // Off-axis stereoscopic effect based on + // http://paulbourke.net/stereographics/stereorender/ + + const projectionMatrix = camera.projectionMatrix.clone(); + const eyeSepHalf = cache.eyeSep / 2; + const eyeSepOnProjection = eyeSepHalf * cache.near / cache.focus; + const ymax = ( cache.near * Math.tan( MathUtils.DEG2RAD * cache.fov * 0.5 ) ) / cache.zoom; + let xmin, xmax; + + // translate xOffset + + _eyeLeft.elements[ 12 ] = - eyeSepHalf; + _eyeRight.elements[ 12 ] = eyeSepHalf; + + // for left eye + + xmin = - ymax * cache.aspect + eyeSepOnProjection; + xmax = ymax * cache.aspect + eyeSepOnProjection; + + projectionMatrix.elements[ 0 ] = 2 * cache.near / ( xmax - xmin ); + projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin ); + + this.cameraL.projectionMatrix.copy( projectionMatrix ); + + // for right eye + + xmin = - ymax * cache.aspect - eyeSepOnProjection; + xmax = ymax * cache.aspect - eyeSepOnProjection; + + projectionMatrix.elements[ 0 ] = 2 * cache.near / ( xmax - xmin ); + projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin ); + + this.cameraR.projectionMatrix.copy( projectionMatrix ); + + } + + this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( _eyeLeft ); + this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( _eyeRight ); + + } + +} ); + +class Clock { + + constructor( autoStart ) { + + this.autoStart = ( autoStart !== undefined ) ? autoStart : true; + + this.startTime = 0; + this.oldTime = 0; + this.elapsedTime = 0; + + this.running = false; + + } + + start() { + + this.startTime = now(); + + this.oldTime = this.startTime; + this.elapsedTime = 0; + this.running = true; + + } + + stop() { + + this.getElapsedTime(); + this.running = false; + this.autoStart = false; + + } + + getElapsedTime() { + + this.getDelta(); + return this.elapsedTime; + + } + + getDelta() { + + let diff = 0; + + if ( this.autoStart && ! this.running ) { + + this.start(); + return 0; + + } + + if ( this.running ) { + + const newTime = now(); + + diff = ( newTime - this.oldTime ) / 1000; + this.oldTime = newTime; + + this.elapsedTime += diff; + + } + + return diff; + + } + +} + +function now() { + + return ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732 + +} + +const _position$2 = /*@__PURE__*/ new Vector3(); +const _quaternion$3 = /*@__PURE__*/ new Quaternion(); +const _scale$1 = /*@__PURE__*/ new Vector3(); +const _orientation = /*@__PURE__*/ new Vector3(); + +class AudioListener extends Object3D { + + constructor() { + + super(); + + this.type = 'AudioListener'; + + this.context = AudioContext.getContext(); + + this.gain = this.context.createGain(); + this.gain.connect( this.context.destination ); + + this.filter = null; + + this.timeDelta = 0; + + // private + + this._clock = new Clock(); + + } + + getInput() { + + return this.gain; + + } + + removeFilter() { + + if ( this.filter !== null ) { + + this.gain.disconnect( this.filter ); + this.filter.disconnect( this.context.destination ); + this.gain.connect( this.context.destination ); + this.filter = null; + + } + + return this; + + } + + getFilter() { + + return this.filter; + + } + + setFilter( value ) { + + if ( this.filter !== null ) { + + this.gain.disconnect( this.filter ); + this.filter.disconnect( this.context.destination ); + + } else { + + this.gain.disconnect( this.context.destination ); + + } + + this.filter = value; + this.gain.connect( this.filter ); + this.filter.connect( this.context.destination ); + + return this; + + } + + getMasterVolume() { + + return this.gain.gain.value; + + } + + setMasterVolume( value ) { + + this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 ); + + return this; + + } + + updateMatrixWorld( force ) { + + super.updateMatrixWorld( force ); + + const listener = this.context.listener; + const up = this.up; + + this.timeDelta = this._clock.getDelta(); + + this.matrixWorld.decompose( _position$2, _quaternion$3, _scale$1 ); + + _orientation.set( 0, 0, - 1 ).applyQuaternion( _quaternion$3 ); + + if ( listener.positionX ) { + + // code path for Chrome (see #14393) + + const endTime = this.context.currentTime + this.timeDelta; + + listener.positionX.linearRampToValueAtTime( _position$2.x, endTime ); + listener.positionY.linearRampToValueAtTime( _position$2.y, endTime ); + listener.positionZ.linearRampToValueAtTime( _position$2.z, endTime ); + listener.forwardX.linearRampToValueAtTime( _orientation.x, endTime ); + listener.forwardY.linearRampToValueAtTime( _orientation.y, endTime ); + listener.forwardZ.linearRampToValueAtTime( _orientation.z, endTime ); + listener.upX.linearRampToValueAtTime( up.x, endTime ); + listener.upY.linearRampToValueAtTime( up.y, endTime ); + listener.upZ.linearRampToValueAtTime( up.z, endTime ); + + } else { + + listener.setPosition( _position$2.x, _position$2.y, _position$2.z ); + listener.setOrientation( _orientation.x, _orientation.y, _orientation.z, up.x, up.y, up.z ); + + } + + } + +} + +class Audio extends Object3D { + + constructor( listener ) { + + super(); + + this.type = 'Audio'; + + this.listener = listener; + this.context = listener.context; + + this.gain = this.context.createGain(); + this.gain.connect( listener.getInput() ); + + this.autoplay = false; + + this.buffer = null; + this.detune = 0; + this.loop = false; + this.loopStart = 0; + this.loopEnd = 0; + this.offset = 0; + this.duration = undefined; + this.playbackRate = 1; + this.isPlaying = false; + this.hasPlaybackControl = true; + this.source = null; + this.sourceType = 'empty'; + + this._startedAt = 0; + this._progress = 0; + this._connected = false; + + this.filters = []; + + } + + getOutput() { + + return this.gain; + + } + + setNodeSource( audioNode ) { + + this.hasPlaybackControl = false; + this.sourceType = 'audioNode'; + this.source = audioNode; + this.connect(); + + return this; + + } + + setMediaElementSource( mediaElement ) { + + this.hasPlaybackControl = false; + this.sourceType = 'mediaNode'; + this.source = this.context.createMediaElementSource( mediaElement ); + this.connect(); + + return this; + + } + + setMediaStreamSource( mediaStream ) { + + this.hasPlaybackControl = false; + this.sourceType = 'mediaStreamNode'; + this.source = this.context.createMediaStreamSource( mediaStream ); + this.connect(); + + return this; + + } + + setBuffer( audioBuffer ) { + + this.buffer = audioBuffer; + this.sourceType = 'buffer'; + + if ( this.autoplay ) this.play(); + + return this; + + } + + play( delay = 0 ) { + + if ( this.isPlaying === true ) { + + console.warn( 'THREE.Audio: Audio is already playing.' ); + return; + + } + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this._startedAt = this.context.currentTime + delay; + + const source = this.context.createBufferSource(); + source.buffer = this.buffer; + source.loop = this.loop; + source.loopStart = this.loopStart; + source.loopEnd = this.loopEnd; + source.onended = this.onEnded.bind( this ); + source.start( this._startedAt, this._progress + this.offset, this.duration ); + + this.isPlaying = true; + + this.source = source; + + this.setDetune( this.detune ); + this.setPlaybackRate( this.playbackRate ); + + return this.connect(); + + } + + pause() { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + if ( this.isPlaying === true ) { + + // update current progress + + this._progress += Math.max( this.context.currentTime - this._startedAt, 0 ) * this.playbackRate; + + if ( this.loop === true ) { + + // ensure _progress does not exceed duration with looped audios + + this._progress = this._progress % ( this.duration || this.buffer.duration ); + + } + + this.source.stop(); + this.source.onended = null; + + this.isPlaying = false; + + } + + return this; + + } + + stop() { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this._progress = 0; + + this.source.stop(); + this.source.onended = null; + this.isPlaying = false; + + return this; + + } + + connect() { + + if ( this.filters.length > 0 ) { + + this.source.connect( this.filters[ 0 ] ); + + for ( let i = 1, l = this.filters.length; i < l; i ++ ) { + + this.filters[ i - 1 ].connect( this.filters[ i ] ); + + } + + this.filters[ this.filters.length - 1 ].connect( this.getOutput() ); + + } else { + + this.source.connect( this.getOutput() ); + + } + + this._connected = true; + + return this; + + } + + disconnect() { + + if ( this.filters.length > 0 ) { + + this.source.disconnect( this.filters[ 0 ] ); + + for ( let i = 1, l = this.filters.length; i < l; i ++ ) { + + this.filters[ i - 1 ].disconnect( this.filters[ i ] ); + + } + + this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() ); + + } else { + + this.source.disconnect( this.getOutput() ); + + } + + this._connected = false; + + return this; + + } + + getFilters() { + + return this.filters; + + } + + setFilters( value ) { + + if ( ! value ) value = []; + + if ( this._connected === true ) { + + this.disconnect(); + this.filters = value.slice(); + this.connect(); + + } else { + + this.filters = value.slice(); + + } + + return this; + + } + + setDetune( value ) { + + this.detune = value; + + if ( this.source.detune === undefined ) return; // only set detune when available + + if ( this.isPlaying === true ) { + + this.source.detune.setTargetAtTime( this.detune, this.context.currentTime, 0.01 ); + + } + + return this; + + } + + getDetune() { + + return this.detune; + + } + + getFilter() { + + return this.getFilters()[ 0 ]; + + } + + setFilter( filter ) { + + return this.setFilters( filter ? [ filter ] : [] ); + + } + + setPlaybackRate( value ) { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this.playbackRate = value; + + if ( this.isPlaying === true ) { + + this.source.playbackRate.setTargetAtTime( this.playbackRate, this.context.currentTime, 0.01 ); + + } + + return this; + + } + + getPlaybackRate() { + + return this.playbackRate; + + } + + onEnded() { + + this.isPlaying = false; + + } + + getLoop() { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return false; + + } + + return this.loop; + + } + + setLoop( value ) { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this.loop = value; + + if ( this.isPlaying === true ) { + + this.source.loop = this.loop; + + } + + return this; + + } + + setLoopStart( value ) { + + this.loopStart = value; + + return this; + + } + + setLoopEnd( value ) { + + this.loopEnd = value; + + return this; + + } + + getVolume() { + + return this.gain.gain.value; + + } + + setVolume( value ) { + + this.gain.gain.setTargetAtTime( value, this.context.currentTime, 0.01 ); + + return this; + + } + +} + +const _position$3 = /*@__PURE__*/ new Vector3(); +const _quaternion$4 = /*@__PURE__*/ new Quaternion(); +const _scale$2 = /*@__PURE__*/ new Vector3(); +const _orientation$1 = /*@__PURE__*/ new Vector3(); + +class PositionalAudio extends Audio { + + constructor( listener ) { + + super( listener ); + + this.panner = this.context.createPanner(); + this.panner.panningModel = 'HRTF'; + this.panner.connect( this.gain ); + + } + + getOutput() { + + return this.panner; + + } + + getRefDistance() { + + return this.panner.refDistance; + + } + + setRefDistance( value ) { + + this.panner.refDistance = value; + + return this; + + } + + getRolloffFactor() { + + return this.panner.rolloffFactor; + + } + + setRolloffFactor( value ) { + + this.panner.rolloffFactor = value; + + return this; + + } + + getDistanceModel() { + + return this.panner.distanceModel; + + } + + setDistanceModel( value ) { + + this.panner.distanceModel = value; + + return this; + + } + + getMaxDistance() { + + return this.panner.maxDistance; + + } + + setMaxDistance( value ) { + + this.panner.maxDistance = value; + + return this; + + } + + setDirectionalCone( coneInnerAngle, coneOuterAngle, coneOuterGain ) { + + this.panner.coneInnerAngle = coneInnerAngle; + this.panner.coneOuterAngle = coneOuterAngle; + this.panner.coneOuterGain = coneOuterGain; + + return this; + + } + + updateMatrixWorld( force ) { + + super.updateMatrixWorld( force ); + + if ( this.hasPlaybackControl === true && this.isPlaying === false ) return; + + this.matrixWorld.decompose( _position$3, _quaternion$4, _scale$2 ); + + _orientation$1.set( 0, 0, 1 ).applyQuaternion( _quaternion$4 ); + + const panner = this.panner; + + if ( panner.positionX ) { + + // code path for Chrome and Firefox (see #14393) + + const endTime = this.context.currentTime + this.listener.timeDelta; + + panner.positionX.linearRampToValueAtTime( _position$3.x, endTime ); + panner.positionY.linearRampToValueAtTime( _position$3.y, endTime ); + panner.positionZ.linearRampToValueAtTime( _position$3.z, endTime ); + panner.orientationX.linearRampToValueAtTime( _orientation$1.x, endTime ); + panner.orientationY.linearRampToValueAtTime( _orientation$1.y, endTime ); + panner.orientationZ.linearRampToValueAtTime( _orientation$1.z, endTime ); + + } else { + + panner.setPosition( _position$3.x, _position$3.y, _position$3.z ); + panner.setOrientation( _orientation$1.x, _orientation$1.y, _orientation$1.z ); + + } + + } + +} + +class AudioAnalyser { + + constructor( audio, fftSize = 2048 ) { + + this.analyser = audio.context.createAnalyser(); + this.analyser.fftSize = fftSize; + + this.data = new Uint8Array( this.analyser.frequencyBinCount ); + + audio.getOutput().connect( this.analyser ); + + } + + + getFrequencyData() { + + this.analyser.getByteFrequencyData( this.data ); + + return this.data; + + } + + getAverageFrequency() { + + let value = 0; + const data = this.getFrequencyData(); + + for ( let i = 0; i < data.length; i ++ ) { + + value += data[ i ]; + + } + + return value / data.length; + + } + +} + +function PropertyMixer( binding, typeName, valueSize ) { + + this.binding = binding; + this.valueSize = valueSize; + + let mixFunction, + mixFunctionAdditive, + setIdentity; + + // buffer layout: [ incoming | accu0 | accu1 | orig | addAccu | (optional work) ] + // + // interpolators can use .buffer as their .result + // the data then goes to 'incoming' + // + // 'accu0' and 'accu1' are used frame-interleaved for + // the cumulative result and are compared to detect + // changes + // + // 'orig' stores the original state of the property + // + // 'add' is used for additive cumulative results + // + // 'work' is optional and is only present for quaternion types. It is used + // to store intermediate quaternion multiplication results + + switch ( typeName ) { + + case 'quaternion': + mixFunction = this._slerp; + mixFunctionAdditive = this._slerpAdditive; + setIdentity = this._setAdditiveIdentityQuaternion; + + this.buffer = new Float64Array( valueSize * 6 ); + this._workIndex = 5; + break; + + case 'string': + case 'bool': + mixFunction = this._select; + + // Use the regular mix function and for additive on these types, + // additive is not relevant for non-numeric types + mixFunctionAdditive = this._select; + + setIdentity = this._setAdditiveIdentityOther; + + this.buffer = new Array( valueSize * 5 ); + break; + + default: + mixFunction = this._lerp; + mixFunctionAdditive = this._lerpAdditive; + setIdentity = this._setAdditiveIdentityNumeric; + + this.buffer = new Float64Array( valueSize * 5 ); + + } + + this._mixBufferRegion = mixFunction; + this._mixBufferRegionAdditive = mixFunctionAdditive; + this._setIdentity = setIdentity; + this._origIndex = 3; + this._addIndex = 4; + + this.cumulativeWeight = 0; + this.cumulativeWeightAdditive = 0; + + this.useCount = 0; + this.referenceCount = 0; + +} + +Object.assign( PropertyMixer.prototype, { + + // accumulate data in the 'incoming' region into 'accu' + accumulate: function ( accuIndex, weight ) { + + // note: happily accumulating nothing when weight = 0, the caller knows + // the weight and shouldn't have made the call in the first place + + const buffer = this.buffer, + stride = this.valueSize, + offset = accuIndex * stride + stride; + + let currentWeight = this.cumulativeWeight; + + if ( currentWeight === 0 ) { + + // accuN := incoming * weight + + for ( let i = 0; i !== stride; ++ i ) { + + buffer[ offset + i ] = buffer[ i ]; + + } + + currentWeight = weight; + + } else { + + // accuN := accuN + incoming * weight + + currentWeight += weight; + const mix = weight / currentWeight; + this._mixBufferRegion( buffer, offset, 0, mix, stride ); + + } + + this.cumulativeWeight = currentWeight; + + }, + + // accumulate data in the 'incoming' region into 'add' + accumulateAdditive: function ( weight ) { + + const buffer = this.buffer, + stride = this.valueSize, + offset = stride * this._addIndex; + + if ( this.cumulativeWeightAdditive === 0 ) { + + // add = identity + + this._setIdentity(); + + } + + // add := add + incoming * weight + + this._mixBufferRegionAdditive( buffer, offset, 0, weight, stride ); + this.cumulativeWeightAdditive += weight; + + }, + + // apply the state of 'accu' to the binding when accus differ + apply: function ( accuIndex ) { + + const stride = this.valueSize, + buffer = this.buffer, + offset = accuIndex * stride + stride, + + weight = this.cumulativeWeight, + weightAdditive = this.cumulativeWeightAdditive, + + binding = this.binding; + + this.cumulativeWeight = 0; + this.cumulativeWeightAdditive = 0; + + if ( weight < 1 ) { + + // accuN := accuN + original * ( 1 - cumulativeWeight ) + + const originalValueOffset = stride * this._origIndex; + + this._mixBufferRegion( + buffer, offset, originalValueOffset, 1 - weight, stride ); + + } + + if ( weightAdditive > 0 ) { + + // accuN := accuN + additive accuN + + this._mixBufferRegionAdditive( buffer, offset, this._addIndex * stride, 1, stride ); + + } + + for ( let i = stride, e = stride + stride; i !== e; ++ i ) { + + if ( buffer[ i ] !== buffer[ i + stride ] ) { + + // value has changed -> update scene graph + + binding.setValue( buffer, offset ); + break; + + } + + } + + }, + + // remember the state of the bound property and copy it to both accus + saveOriginalState: function () { + + const binding = this.binding; + + const buffer = this.buffer, + stride = this.valueSize, + + originalValueOffset = stride * this._origIndex; + + binding.getValue( buffer, originalValueOffset ); + + // accu[0..1] := orig -- initially detect changes against the original + for ( let i = stride, e = originalValueOffset; i !== e; ++ i ) { + + buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ]; + + } + + // Add to identity for additive + this._setIdentity(); + + this.cumulativeWeight = 0; + this.cumulativeWeightAdditive = 0; + + }, + + // apply the state previously taken via 'saveOriginalState' to the binding + restoreOriginalState: function () { + + const originalValueOffset = this.valueSize * 3; + this.binding.setValue( this.buffer, originalValueOffset ); + + }, + + _setAdditiveIdentityNumeric: function () { + + const startIndex = this._addIndex * this.valueSize; + const endIndex = startIndex + this.valueSize; + + for ( let i = startIndex; i < endIndex; i ++ ) { + + this.buffer[ i ] = 0; + + } + + }, + + _setAdditiveIdentityQuaternion: function () { + + this._setAdditiveIdentityNumeric(); + this.buffer[ this._addIndex * this.valueSize + 3 ] = 1; + + }, + + _setAdditiveIdentityOther: function () { + + const startIndex = this._origIndex * this.valueSize; + const targetIndex = this._addIndex * this.valueSize; + + for ( let i = 0; i < this.valueSize; i ++ ) { + + this.buffer[ targetIndex + i ] = this.buffer[ startIndex + i ]; + + } + + }, + + + // mix functions + + _select: function ( buffer, dstOffset, srcOffset, t, stride ) { + + if ( t >= 0.5 ) { + + for ( let i = 0; i !== stride; ++ i ) { + + buffer[ dstOffset + i ] = buffer[ srcOffset + i ]; + + } + + } + + }, + + _slerp: function ( buffer, dstOffset, srcOffset, t ) { + + Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t ); + + }, + + _slerpAdditive: function ( buffer, dstOffset, srcOffset, t, stride ) { + + const workOffset = this._workIndex * stride; + + // Store result in intermediate buffer offset + Quaternion.multiplyQuaternionsFlat( buffer, workOffset, buffer, dstOffset, buffer, srcOffset ); + + // Slerp to the intermediate result + Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, workOffset, t ); + + }, + + _lerp: function ( buffer, dstOffset, srcOffset, t, stride ) { + + const s = 1 - t; + + for ( let i = 0; i !== stride; ++ i ) { + + const j = dstOffset + i; + + buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t; + + } + + }, + + _lerpAdditive: function ( buffer, dstOffset, srcOffset, t, stride ) { + + for ( let i = 0; i !== stride; ++ i ) { + + const j = dstOffset + i; + + buffer[ j ] = buffer[ j ] + buffer[ srcOffset + i ] * t; + + } + + } + +} ); + +// Characters [].:/ are reserved for track binding syntax. +const _RESERVED_CHARS_RE = '\\[\\]\\.:\\/'; +const _reservedRe = new RegExp( '[' + _RESERVED_CHARS_RE + ']', 'g' ); + +// Attempts to allow node names from any language. ES5's `\w` regexp matches +// only latin characters, and the unicode \p{L} is not yet supported. So +// instead, we exclude reserved characters and match everything else. +const _wordChar = '[^' + _RESERVED_CHARS_RE + ']'; +const _wordCharOrDot = '[^' + _RESERVED_CHARS_RE.replace( '\\.', '' ) + ']'; + +// Parent directories, delimited by '/' or ':'. Currently unused, but must +// be matched to parse the rest of the track name. +const _directoryRe = /((?:WC+[\/:])*)/.source.replace( 'WC', _wordChar ); + +// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'. +const _nodeRe = /(WCOD+)?/.source.replace( 'WCOD', _wordCharOrDot ); + +// Object on target node, and accessor. May not contain reserved +// characters. Accessor may contain any character except closing bracket. +const _objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace( 'WC', _wordChar ); + +// Property and accessor. May not contain reserved characters. Accessor may +// contain any non-bracket characters. +const _propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace( 'WC', _wordChar ); + +const _trackRe = new RegExp( '' + + '^' + + _directoryRe + + _nodeRe + + _objectRe + + _propertyRe + + '$' +); + +const _supportedObjectNames = [ 'material', 'materials', 'bones' ]; + +function Composite( targetGroup, path, optionalParsedPath ) { + + const parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path ); + + this._targetGroup = targetGroup; + this._bindings = targetGroup.subscribe_( path, parsedPath ); + +} + +Object.assign( Composite.prototype, { + + getValue: function ( array, offset ) { + + this.bind(); // bind all binding + + const firstValidIndex = this._targetGroup.nCachedObjects_, + binding = this._bindings[ firstValidIndex ]; + + // and only call .getValue on the first + if ( binding !== undefined ) binding.getValue( array, offset ); + + }, + + setValue: function ( array, offset ) { + + const bindings = this._bindings; + + for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].setValue( array, offset ); + + } + + }, + + bind: function () { + + const bindings = this._bindings; + + for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].bind(); + + } + + }, + + unbind: function () { + + const bindings = this._bindings; + + for ( let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].unbind(); + + } + + } + +} ); + + +function PropertyBinding( rootNode, path, parsedPath ) { + + this.path = path; + this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path ); + + this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode; + + this.rootNode = rootNode; + +} + +Object.assign( PropertyBinding, { + + Composite: Composite, + + create: function ( root, path, parsedPath ) { + + if ( ! ( root && root.isAnimationObjectGroup ) ) { + + return new PropertyBinding( root, path, parsedPath ); + + } else { + + return new PropertyBinding.Composite( root, path, parsedPath ); + + } + + }, + + /** + * Replaces spaces with underscores and removes unsupported characters from + * node names, to ensure compatibility with parseTrackName(). + * + * @param {string} name Node name to be sanitized. + * @return {string} + */ + sanitizeNodeName: function ( name ) { + + return name.replace( /\s/g, '_' ).replace( _reservedRe, '' ); + + }, + + parseTrackName: function ( trackName ) { + + const matches = _trackRe.exec( trackName ); + + if ( ! matches ) { + + throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName ); + + } + + const results = { + // directoryName: matches[ 1 ], // (tschw) currently unused + nodeName: matches[ 2 ], + objectName: matches[ 3 ], + objectIndex: matches[ 4 ], + propertyName: matches[ 5 ], // required + propertyIndex: matches[ 6 ] + }; + + const lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' ); + + if ( lastDot !== undefined && lastDot !== - 1 ) { + + const objectName = results.nodeName.substring( lastDot + 1 ); + + // Object names must be checked against an allowlist. Otherwise, there + // is no way to parse 'foo.bar.baz': 'baz' must be a property, but + // 'bar' could be the objectName, or part of a nodeName (which can + // include '.' characters). + if ( _supportedObjectNames.indexOf( objectName ) !== - 1 ) { + + results.nodeName = results.nodeName.substring( 0, lastDot ); + results.objectName = objectName; + + } + + } + + if ( results.propertyName === null || results.propertyName.length === 0 ) { + + throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName ); + + } + + return results; + + }, + + findNode: function ( root, nodeName ) { + + if ( ! nodeName || nodeName === '' || nodeName === '.' || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) { + + return root; + + } + + // search into skeleton bones. + if ( root.skeleton ) { + + const bone = root.skeleton.getBoneByName( nodeName ); + + if ( bone !== undefined ) { + + return bone; + + } + + } + + // search into node subtree. + if ( root.children ) { + + const searchNodeSubtree = function ( children ) { + + for ( let i = 0; i < children.length; i ++ ) { + + const childNode = children[ i ]; + + if ( childNode.name === nodeName || childNode.uuid === nodeName ) { + + return childNode; + + } + + const result = searchNodeSubtree( childNode.children ); + + if ( result ) return result; + + } + + return null; + + }; + + const subTreeNode = searchNodeSubtree( root.children ); + + if ( subTreeNode ) { + + return subTreeNode; + + } + + } + + return null; + + } + +} ); + +Object.assign( PropertyBinding.prototype, { // prototype, continued + + // these are used to "bind" a nonexistent property + _getValue_unavailable: function () {}, + _setValue_unavailable: function () {}, + + BindingType: { + Direct: 0, + EntireArray: 1, + ArrayElement: 2, + HasFromToArray: 3 + }, + + Versioning: { + None: 0, + NeedsUpdate: 1, + MatrixWorldNeedsUpdate: 2 + }, + + GetterByBindingType: [ + + function getValue_direct( buffer, offset ) { + + buffer[ offset ] = this.node[ this.propertyName ]; + + }, + + function getValue_array( buffer, offset ) { + + const source = this.resolvedProperty; + + for ( let i = 0, n = source.length; i !== n; ++ i ) { + + buffer[ offset ++ ] = source[ i ]; + + } + + }, + + function getValue_arrayElement( buffer, offset ) { + + buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ]; + + }, + + function getValue_toArray( buffer, offset ) { + + this.resolvedProperty.toArray( buffer, offset ); + + } + + ], + + SetterByBindingTypeAndVersioning: [ + + [ + // Direct + + function setValue_direct( buffer, offset ) { + + this.targetObject[ this.propertyName ] = buffer[ offset ]; + + }, + + function setValue_direct_setNeedsUpdate( buffer, offset ) { + + this.targetObject[ this.propertyName ] = buffer[ offset ]; + this.targetObject.needsUpdate = true; + + }, + + function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.targetObject[ this.propertyName ] = buffer[ offset ]; + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + ], [ + + // EntireArray + + function setValue_array( buffer, offset ) { + + const dest = this.resolvedProperty; + + for ( let i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + }, + + function setValue_array_setNeedsUpdate( buffer, offset ) { + + const dest = this.resolvedProperty; + + for ( let i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + this.targetObject.needsUpdate = true; + + }, + + function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) { + + const dest = this.resolvedProperty; + + for ( let i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + ], [ + + // ArrayElement + + function setValue_arrayElement( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + + }, + + function setValue_arrayElement_setNeedsUpdate( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + this.targetObject.needsUpdate = true; + + }, + + function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + ], [ + + // HasToFromArray + + function setValue_fromArray( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + + }, + + function setValue_fromArray_setNeedsUpdate( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + this.targetObject.needsUpdate = true; + + }, + + function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + ] + + ], + + getValue: function getValue_unbound( targetArray, offset ) { + + this.bind(); + this.getValue( targetArray, offset ); + + // Note: This class uses a State pattern on a per-method basis: + // 'bind' sets 'this.getValue' / 'setValue' and shadows the + // prototype version of these methods with one that represents + // the bound state. When the property is not found, the methods + // become no-ops. + + }, + + setValue: function getValue_unbound( sourceArray, offset ) { + + this.bind(); + this.setValue( sourceArray, offset ); + + }, + + // create getter / setter pair for a property in the scene graph + bind: function () { + + let targetObject = this.node; + const parsedPath = this.parsedPath; + + const objectName = parsedPath.objectName; + const propertyName = parsedPath.propertyName; + let propertyIndex = parsedPath.propertyIndex; + + if ( ! targetObject ) { + + targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode; + + this.node = targetObject; + + } + + // set fail state so we can just 'return' on error + this.getValue = this._getValue_unavailable; + this.setValue = this._setValue_unavailable; + + // ensure there is a value node + if ( ! targetObject ) { + + console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' ); + return; + + } + + if ( objectName ) { + + let objectIndex = parsedPath.objectIndex; + + // special cases were we need to reach deeper into the hierarchy to get the face materials.... + switch ( objectName ) { + + case 'materials': + + if ( ! targetObject.material ) { + + console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this ); + return; + + } + + if ( ! targetObject.material.materials ) { + + console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this ); + return; + + } + + targetObject = targetObject.material.materials; + + break; + + case 'bones': + + if ( ! targetObject.skeleton ) { + + console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this ); + return; + + } + + // potential future optimization: skip this if propertyIndex is already an integer + // and convert the integer string to a true integer. + + targetObject = targetObject.skeleton.bones; + + // support resolving morphTarget names into indices. + for ( let i = 0; i < targetObject.length; i ++ ) { + + if ( targetObject[ i ].name === objectIndex ) { + + objectIndex = i; + break; + + } + + } + + break; + + default: + + if ( targetObject[ objectName ] === undefined ) { + + console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this ); + return; + + } + + targetObject = targetObject[ objectName ]; + + } + + + if ( objectIndex !== undefined ) { + + if ( targetObject[ objectIndex ] === undefined ) { + + console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject ); + return; + + } + + targetObject = targetObject[ objectIndex ]; + + } + + } + + // resolve property + const nodeProperty = targetObject[ propertyName ]; + + if ( nodeProperty === undefined ) { + + const nodeName = parsedPath.nodeName; + + console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName + + '.' + propertyName + ' but it wasn\'t found.', targetObject ); + return; + + } + + // determine versioning scheme + let versioning = this.Versioning.None; + + this.targetObject = targetObject; + + if ( targetObject.needsUpdate !== undefined ) { // material + + versioning = this.Versioning.NeedsUpdate; + + } else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform + + versioning = this.Versioning.MatrixWorldNeedsUpdate; + + } + + // determine how the property gets bound + let bindingType = this.BindingType.Direct; + + if ( propertyIndex !== undefined ) { + + // access a sub element of the property array (only primitives are supported right now) + + if ( propertyName === 'morphTargetInfluences' ) { + + // potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer. + + // support resolving morphTarget names into indices. + if ( ! targetObject.geometry ) { + + console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this ); + return; + + } + + if ( targetObject.geometry.isBufferGeometry ) { + + if ( ! targetObject.geometry.morphAttributes ) { + + console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this ); + return; + + } + + if ( targetObject.morphTargetDictionary[ propertyIndex ] !== undefined ) { + + propertyIndex = targetObject.morphTargetDictionary[ propertyIndex ]; + + } + + + } else { + + console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.', this ); + return; + + } + + } + + bindingType = this.BindingType.ArrayElement; + + this.resolvedProperty = nodeProperty; + this.propertyIndex = propertyIndex; + + } else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) { + + // must use copy for Object3D.Euler/Quaternion + + bindingType = this.BindingType.HasFromToArray; + + this.resolvedProperty = nodeProperty; + + } else if ( Array.isArray( nodeProperty ) ) { + + bindingType = this.BindingType.EntireArray; + + this.resolvedProperty = nodeProperty; + + } else { + + this.propertyName = propertyName; + + } + + // select getter / setter + this.getValue = this.GetterByBindingType[ bindingType ]; + this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ]; + + }, + + unbind: function () { + + this.node = null; + + // back to the prototype version of getValue / setValue + // note: avoiding to mutate the shape of 'this' via 'delete' + this.getValue = this._getValue_unbound; + this.setValue = this._setValue_unbound; + + } + +} ); + +// DECLARE ALIAS AFTER assign prototype +Object.assign( PropertyBinding.prototype, { + + // initial state of these methods that calls 'bind' + _getValue_unbound: PropertyBinding.prototype.getValue, + _setValue_unbound: PropertyBinding.prototype.setValue, + +} ); + +/** + * + * A group of objects that receives a shared animation state. + * + * Usage: + * + * - Add objects you would otherwise pass as 'root' to the + * constructor or the .clipAction method of AnimationMixer. + * + * - Instead pass this object as 'root'. + * + * - You can also add and remove objects later when the mixer + * is running. + * + * Note: + * + * Objects of this class appear as one object to the mixer, + * so cache control of the individual objects must be done + * on the group. + * + * Limitation: + * + * - The animated properties must be compatible among the + * all objects in the group. + * + * - A single property can either be controlled through a + * target group or directly, but not both. + */ + +function AnimationObjectGroup() { + + this.uuid = MathUtils.generateUUID(); + + // cached objects followed by the active ones + this._objects = Array.prototype.slice.call( arguments ); + + this.nCachedObjects_ = 0; // threshold + // note: read by PropertyBinding.Composite + + const indices = {}; + this._indicesByUUID = indices; // for bookkeeping + + for ( let i = 0, n = arguments.length; i !== n; ++ i ) { + + indices[ arguments[ i ].uuid ] = i; + + } + + this._paths = []; // inside: string + this._parsedPaths = []; // inside: { we don't care, here } + this._bindings = []; // inside: Array< PropertyBinding > + this._bindingsIndicesByPath = {}; // inside: indices in these arrays + + const scope = this; + + this.stats = { + + objects: { + get total() { + + return scope._objects.length; + + }, + get inUse() { + + return this.total - scope.nCachedObjects_; + + } + }, + get bindingsPerObject() { + + return scope._bindings.length; + + } + + }; + +} + +Object.assign( AnimationObjectGroup.prototype, { + + isAnimationObjectGroup: true, + + add: function () { + + const objects = this._objects, + indicesByUUID = this._indicesByUUID, + paths = this._paths, + parsedPaths = this._parsedPaths, + bindings = this._bindings, + nBindings = bindings.length; + + let knownObject = undefined, + nObjects = objects.length, + nCachedObjects = this.nCachedObjects_; + + for ( let i = 0, n = arguments.length; i !== n; ++ i ) { + + const object = arguments[ i ], + uuid = object.uuid; + let index = indicesByUUID[ uuid ]; + + if ( index === undefined ) { + + // unknown object -> add it to the ACTIVE region + + index = nObjects ++; + indicesByUUID[ uuid ] = index; + objects.push( object ); + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) ); + + } + + } else if ( index < nCachedObjects ) { + + knownObject = objects[ index ]; + + // move existing object to the ACTIVE region + + const firstActiveIndex = -- nCachedObjects, + lastCachedObject = objects[ firstActiveIndex ]; + + indicesByUUID[ lastCachedObject.uuid ] = index; + objects[ index ] = lastCachedObject; + + indicesByUUID[ uuid ] = firstActiveIndex; + objects[ firstActiveIndex ] = object; + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + const bindingsForPath = bindings[ j ], + lastCached = bindingsForPath[ firstActiveIndex ]; + + let binding = bindingsForPath[ index ]; + + bindingsForPath[ index ] = lastCached; + + if ( binding === undefined ) { + + // since we do not bother to create new bindings + // for objects that are cached, the binding may + // or may not exist + + binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ); + + } + + bindingsForPath[ firstActiveIndex ] = binding; + + } + + } else if ( objects[ index ] !== knownObject ) { + + console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' + + 'detected. Clean the caches or recreate your infrastructure when reloading scenes.' ); + + } // else the object is already where we want it to be + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + }, + + remove: function () { + + const objects = this._objects, + indicesByUUID = this._indicesByUUID, + bindings = this._bindings, + nBindings = bindings.length; + + let nCachedObjects = this.nCachedObjects_; + + for ( let i = 0, n = arguments.length; i !== n; ++ i ) { + + const object = arguments[ i ], + uuid = object.uuid, + index = indicesByUUID[ uuid ]; + + if ( index !== undefined && index >= nCachedObjects ) { + + // move existing object into the CACHED region + + const lastCachedIndex = nCachedObjects ++, + firstActiveObject = objects[ lastCachedIndex ]; + + indicesByUUID[ firstActiveObject.uuid ] = index; + objects[ index ] = firstActiveObject; + + indicesByUUID[ uuid ] = lastCachedIndex; + objects[ lastCachedIndex ] = object; + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + const bindingsForPath = bindings[ j ], + firstActive = bindingsForPath[ lastCachedIndex ], + binding = bindingsForPath[ index ]; + + bindingsForPath[ index ] = firstActive; + bindingsForPath[ lastCachedIndex ] = binding; + + } + + } + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + }, + + // remove & forget + uncache: function () { + + const objects = this._objects, + indicesByUUID = this._indicesByUUID, + bindings = this._bindings, + nBindings = bindings.length; + + let nCachedObjects = this.nCachedObjects_, + nObjects = objects.length; + + for ( let i = 0, n = arguments.length; i !== n; ++ i ) { + + const object = arguments[ i ], + uuid = object.uuid, + index = indicesByUUID[ uuid ]; + + if ( index !== undefined ) { + + delete indicesByUUID[ uuid ]; + + if ( index < nCachedObjects ) { + + // object is cached, shrink the CACHED region + + const firstActiveIndex = -- nCachedObjects, + lastCachedObject = objects[ firstActiveIndex ], + lastIndex = -- nObjects, + lastObject = objects[ lastIndex ]; + + // last cached object takes this object's place + indicesByUUID[ lastCachedObject.uuid ] = index; + objects[ index ] = lastCachedObject; + + // last object goes to the activated slot and pop + indicesByUUID[ lastObject.uuid ] = firstActiveIndex; + objects[ firstActiveIndex ] = lastObject; + objects.pop(); + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + const bindingsForPath = bindings[ j ], + lastCached = bindingsForPath[ firstActiveIndex ], + last = bindingsForPath[ lastIndex ]; + + bindingsForPath[ index ] = lastCached; + bindingsForPath[ firstActiveIndex ] = last; + bindingsForPath.pop(); + + } + + } else { + + // object is active, just swap with the last and pop + + const lastIndex = -- nObjects, + lastObject = objects[ lastIndex ]; + + if ( lastIndex > 0 ) { + + indicesByUUID[ lastObject.uuid ] = index; + + } + + objects[ index ] = lastObject; + objects.pop(); + + // accounting is done, now do the same for all bindings + + for ( let j = 0, m = nBindings; j !== m; ++ j ) { + + const bindingsForPath = bindings[ j ]; + + bindingsForPath[ index ] = bindingsForPath[ lastIndex ]; + bindingsForPath.pop(); + + } + + } // cached or active + + } // if object is known + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + }, + + // Internal interface used by befriended PropertyBinding.Composite: + + subscribe_: function ( path, parsedPath ) { + + // returns an array of bindings for the given path that is changed + // according to the contained objects in the group + + const indicesByPath = this._bindingsIndicesByPath; + let index = indicesByPath[ path ]; + const bindings = this._bindings; + + if ( index !== undefined ) return bindings[ index ]; + + const paths = this._paths, + parsedPaths = this._parsedPaths, + objects = this._objects, + nObjects = objects.length, + nCachedObjects = this.nCachedObjects_, + bindingsForPath = new Array( nObjects ); + + index = bindings.length; + + indicesByPath[ path ] = index; + + paths.push( path ); + parsedPaths.push( parsedPath ); + bindings.push( bindingsForPath ); + + for ( let i = nCachedObjects, n = objects.length; i !== n; ++ i ) { + + const object = objects[ i ]; + bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath ); + + } + + return bindingsForPath; + + }, + + unsubscribe_: function ( path ) { + + // tells the group to forget about a property path and no longer + // update the array previously obtained with 'subscribe_' + + const indicesByPath = this._bindingsIndicesByPath, + index = indicesByPath[ path ]; + + if ( index !== undefined ) { + + const paths = this._paths, + parsedPaths = this._parsedPaths, + bindings = this._bindings, + lastBindingsIndex = bindings.length - 1, + lastBindings = bindings[ lastBindingsIndex ], + lastBindingsPath = path[ lastBindingsIndex ]; + + indicesByPath[ lastBindingsPath ] = index; + + bindings[ index ] = lastBindings; + bindings.pop(); + + parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ]; + parsedPaths.pop(); + + paths[ index ] = paths[ lastBindingsIndex ]; + paths.pop(); + + } + + } + +} ); + +class AnimationAction { + + constructor( mixer, clip, localRoot = null, blendMode = clip.blendMode ) { + + this._mixer = mixer; + this._clip = clip; + this._localRoot = localRoot; + this.blendMode = blendMode; + + const tracks = clip.tracks, + nTracks = tracks.length, + interpolants = new Array( nTracks ); + + const interpolantSettings = { + endingStart: ZeroCurvatureEnding, + endingEnd: ZeroCurvatureEnding + }; + + for ( let i = 0; i !== nTracks; ++ i ) { + + const interpolant = tracks[ i ].createInterpolant( null ); + interpolants[ i ] = interpolant; + interpolant.settings = interpolantSettings; + + } + + this._interpolantSettings = interpolantSettings; + + this._interpolants = interpolants; // bound by the mixer + + // inside: PropertyMixer (managed by the mixer) + this._propertyBindings = new Array( nTracks ); + + this._cacheIndex = null; // for the memory manager + this._byClipCacheIndex = null; // for the memory manager + + this._timeScaleInterpolant = null; + this._weightInterpolant = null; + + this.loop = LoopRepeat; + this._loopCount = - 1; + + // global mixer time when the action is to be started + // it's set back to 'null' upon start of the action + this._startTime = null; + + // scaled local time of the action + // gets clamped or wrapped to 0..clip.duration according to loop + this.time = 0; + + this.timeScale = 1; + this._effectiveTimeScale = 1; + + this.weight = 1; + this._effectiveWeight = 1; + + this.repetitions = Infinity; // no. of repetitions when looping + + this.paused = false; // true -> zero effective time scale + this.enabled = true; // false -> zero effective weight + + this.clampWhenFinished = false;// keep feeding the last frame? + + this.zeroSlopeAtStart = true;// for smooth interpolation w/o separate + this.zeroSlopeAtEnd = true;// clips for start, loop and end + + } + + // State & Scheduling + + play() { + + this._mixer._activateAction( this ); + + return this; + + } + + stop() { + + this._mixer._deactivateAction( this ); + + return this.reset(); + + } + + reset() { + + this.paused = false; + this.enabled = true; + + this.time = 0; // restart clip + this._loopCount = - 1;// forget previous loops + this._startTime = null;// forget scheduling + + return this.stopFading().stopWarping(); + + } + + isRunning() { + + return this.enabled && ! this.paused && this.timeScale !== 0 && + this._startTime === null && this._mixer._isActiveAction( this ); + + } + + // return true when play has been called + isScheduled() { + + return this._mixer._isActiveAction( this ); + + } + + startAt( time ) { + + this._startTime = time; + + return this; + + } + + setLoop( mode, repetitions ) { + + this.loop = mode; + this.repetitions = repetitions; + + return this; + + } + + // Weight + + // set the weight stopping any scheduled fading + // although .enabled = false yields an effective weight of zero, this + // method does *not* change .enabled, because it would be confusing + setEffectiveWeight( weight ) { + + this.weight = weight; + + // note: same logic as when updated at runtime + this._effectiveWeight = this.enabled ? weight : 0; + + return this.stopFading(); + + } + + // return the weight considering fading and .enabled + getEffectiveWeight() { + + return this._effectiveWeight; + + } + + fadeIn( duration ) { + + return this._scheduleFading( duration, 0, 1 ); + + } + + fadeOut( duration ) { + + return this._scheduleFading( duration, 1, 0 ); + + } + + crossFadeFrom( fadeOutAction, duration, warp ) { + + fadeOutAction.fadeOut( duration ); + this.fadeIn( duration ); + + if ( warp ) { + + const fadeInDuration = this._clip.duration, + fadeOutDuration = fadeOutAction._clip.duration, + + startEndRatio = fadeOutDuration / fadeInDuration, + endStartRatio = fadeInDuration / fadeOutDuration; + + fadeOutAction.warp( 1.0, startEndRatio, duration ); + this.warp( endStartRatio, 1.0, duration ); + + } + + return this; + + } + + crossFadeTo( fadeInAction, duration, warp ) { + + return fadeInAction.crossFadeFrom( this, duration, warp ); + + } + + stopFading() { + + const weightInterpolant = this._weightInterpolant; + + if ( weightInterpolant !== null ) { + + this._weightInterpolant = null; + this._mixer._takeBackControlInterpolant( weightInterpolant ); + + } + + return this; + + } + + // Time Scale Control + + // set the time scale stopping any scheduled warping + // although .paused = true yields an effective time scale of zero, this + // method does *not* change .paused, because it would be confusing + setEffectiveTimeScale( timeScale ) { + + this.timeScale = timeScale; + this._effectiveTimeScale = this.paused ? 0 : timeScale; + + return this.stopWarping(); + + } + + // return the time scale considering warping and .paused + getEffectiveTimeScale() { + + return this._effectiveTimeScale; + + } + + setDuration( duration ) { + + this.timeScale = this._clip.duration / duration; + + return this.stopWarping(); + + } + + syncWith( action ) { + + this.time = action.time; + this.timeScale = action.timeScale; + + return this.stopWarping(); + + } + + halt( duration ) { + + return this.warp( this._effectiveTimeScale, 0, duration ); + + } + + warp( startTimeScale, endTimeScale, duration ) { + + const mixer = this._mixer, + now = mixer.time, + timeScale = this.timeScale; + + let interpolant = this._timeScaleInterpolant; + + if ( interpolant === null ) { + + interpolant = mixer._lendControlInterpolant(); + this._timeScaleInterpolant = interpolant; + + } + + const times = interpolant.parameterPositions, + values = interpolant.sampleValues; + + times[ 0 ] = now; + times[ 1 ] = now + duration; + + values[ 0 ] = startTimeScale / timeScale; + values[ 1 ] = endTimeScale / timeScale; + + return this; + + } + + stopWarping() { + + const timeScaleInterpolant = this._timeScaleInterpolant; + + if ( timeScaleInterpolant !== null ) { + + this._timeScaleInterpolant = null; + this._mixer._takeBackControlInterpolant( timeScaleInterpolant ); + + } + + return this; + + } + + // Object Accessors + + getMixer() { + + return this._mixer; + + } + + getClip() { + + return this._clip; + + } + + getRoot() { + + return this._localRoot || this._mixer._root; + + } + + // Interna + + _update( time, deltaTime, timeDirection, accuIndex ) { + + // called by the mixer + + if ( ! this.enabled ) { + + // call ._updateWeight() to update ._effectiveWeight + + this._updateWeight( time ); + return; + + } + + const startTime = this._startTime; + + if ( startTime !== null ) { + + // check for scheduled start of action + + const timeRunning = ( time - startTime ) * timeDirection; + if ( timeRunning < 0 || timeDirection === 0 ) { + + return; // yet to come / don't decide when delta = 0 + + } + + // start + + this._startTime = null; // unschedule + deltaTime = timeDirection * timeRunning; + + } + + // apply time scale and advance time + + deltaTime *= this._updateTimeScale( time ); + const clipTime = this._updateTime( deltaTime ); + + // note: _updateTime may disable the action resulting in + // an effective weight of 0 + + const weight = this._updateWeight( time ); + + if ( weight > 0 ) { + + const interpolants = this._interpolants; + const propertyMixers = this._propertyBindings; + + switch ( this.blendMode ) { + + case AdditiveAnimationBlendMode: + + for ( let j = 0, m = interpolants.length; j !== m; ++ j ) { + + interpolants[ j ].evaluate( clipTime ); + propertyMixers[ j ].accumulateAdditive( weight ); + + } + + break; + + case NormalAnimationBlendMode: + default: + + for ( let j = 0, m = interpolants.length; j !== m; ++ j ) { + + interpolants[ j ].evaluate( clipTime ); + propertyMixers[ j ].accumulate( accuIndex, weight ); + + } + + } + + } + + } + + _updateWeight( time ) { + + let weight = 0; + + if ( this.enabled ) { + + weight = this.weight; + const interpolant = this._weightInterpolant; + + if ( interpolant !== null ) { + + const interpolantValue = interpolant.evaluate( time )[ 0 ]; + + weight *= interpolantValue; + + if ( time > interpolant.parameterPositions[ 1 ] ) { + + this.stopFading(); + + if ( interpolantValue === 0 ) { + + // faded out, disable + this.enabled = false; + + } + + } + + } + + } + + this._effectiveWeight = weight; + return weight; + + } + + _updateTimeScale( time ) { + + let timeScale = 0; + + if ( ! this.paused ) { + + timeScale = this.timeScale; + + const interpolant = this._timeScaleInterpolant; + + if ( interpolant !== null ) { + + const interpolantValue = interpolant.evaluate( time )[ 0 ]; + + timeScale *= interpolantValue; + + if ( time > interpolant.parameterPositions[ 1 ] ) { + + this.stopWarping(); + + if ( timeScale === 0 ) { + + // motion has halted, pause + this.paused = true; + + } else { + + // warp done - apply final time scale + this.timeScale = timeScale; + + } + + } + + } + + } + + this._effectiveTimeScale = timeScale; + return timeScale; + + } + + _updateTime( deltaTime ) { + + const duration = this._clip.duration; + const loop = this.loop; + + let time = this.time + deltaTime; + let loopCount = this._loopCount; + + const pingPong = ( loop === LoopPingPong ); + + if ( deltaTime === 0 ) { + + if ( loopCount === - 1 ) return time; + + return ( pingPong && ( loopCount & 1 ) === 1 ) ? duration - time : time; + + } + + if ( loop === LoopOnce ) { + + if ( loopCount === - 1 ) { + + // just started + + this._loopCount = 0; + this._setEndings( true, true, false ); + + } + + handle_stop: { + + if ( time >= duration ) { + + time = duration; + + } else if ( time < 0 ) { + + time = 0; + + } else { + + this.time = time; + + break handle_stop; + + } + + if ( this.clampWhenFinished ) this.paused = true; + else this.enabled = false; + + this.time = time; + + this._mixer.dispatchEvent( { + type: 'finished', action: this, + direction: deltaTime < 0 ? - 1 : 1 + } ); + + } + + } else { // repetitive Repeat or PingPong + + if ( loopCount === - 1 ) { + + // just started + + if ( deltaTime >= 0 ) { + + loopCount = 0; + + this._setEndings( true, this.repetitions === 0, pingPong ); + + } else { + + // when looping in reverse direction, the initial + // transition through zero counts as a repetition, + // so leave loopCount at -1 + + this._setEndings( this.repetitions === 0, true, pingPong ); + + } + + } + + if ( time >= duration || time < 0 ) { + + // wrap around + + const loopDelta = Math.floor( time / duration ); // signed + time -= duration * loopDelta; + + loopCount += Math.abs( loopDelta ); + + const pending = this.repetitions - loopCount; + + if ( pending <= 0 ) { + + // have to stop (switch state, clamp time, fire event) + + if ( this.clampWhenFinished ) this.paused = true; + else this.enabled = false; + + time = deltaTime > 0 ? duration : 0; + + this.time = time; + + this._mixer.dispatchEvent( { + type: 'finished', action: this, + direction: deltaTime > 0 ? 1 : - 1 + } ); + + } else { + + // keep running + + if ( pending === 1 ) { + + // entering the last round + + const atStart = deltaTime < 0; + this._setEndings( atStart, ! atStart, pingPong ); + + } else { + + this._setEndings( false, false, pingPong ); + + } + + this._loopCount = loopCount; + + this.time = time; + + this._mixer.dispatchEvent( { + type: 'loop', action: this, loopDelta: loopDelta + } ); + + } + + } else { + + this.time = time; + + } + + if ( pingPong && ( loopCount & 1 ) === 1 ) { + + // invert time for the "pong round" + + return duration - time; + + } + + } + + return time; + + } + + _setEndings( atStart, atEnd, pingPong ) { + + const settings = this._interpolantSettings; + + if ( pingPong ) { + + settings.endingStart = ZeroSlopeEnding; + settings.endingEnd = ZeroSlopeEnding; + + } else { + + // assuming for LoopOnce atStart == atEnd == true + + if ( atStart ) { + + settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding; + + } else { + + settings.endingStart = WrapAroundEnding; + + } + + if ( atEnd ) { + + settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding; + + } else { + + settings.endingEnd = WrapAroundEnding; + + } + + } + + } + + _scheduleFading( duration, weightNow, weightThen ) { + + const mixer = this._mixer, now = mixer.time; + let interpolant = this._weightInterpolant; + + if ( interpolant === null ) { + + interpolant = mixer._lendControlInterpolant(); + this._weightInterpolant = interpolant; + + } + + const times = interpolant.parameterPositions, + values = interpolant.sampleValues; + + times[ 0 ] = now; + values[ 0 ] = weightNow; + times[ 1 ] = now + duration; + values[ 1 ] = weightThen; + + return this; + + } + +} + +function AnimationMixer( root ) { + + this._root = root; + this._initMemoryManager(); + this._accuIndex = 0; + + this.time = 0; + + this.timeScale = 1.0; + +} + +AnimationMixer.prototype = Object.assign( Object.create( EventDispatcher.prototype ), { + + constructor: AnimationMixer, + + _bindAction: function ( action, prototypeAction ) { + + const root = action._localRoot || this._root, + tracks = action._clip.tracks, + nTracks = tracks.length, + bindings = action._propertyBindings, + interpolants = action._interpolants, + rootUuid = root.uuid, + bindingsByRoot = this._bindingsByRootAndName; + + let bindingsByName = bindingsByRoot[ rootUuid ]; + + if ( bindingsByName === undefined ) { + + bindingsByName = {}; + bindingsByRoot[ rootUuid ] = bindingsByName; + + } + + for ( let i = 0; i !== nTracks; ++ i ) { + + const track = tracks[ i ], + trackName = track.name; + + let binding = bindingsByName[ trackName ]; + + if ( binding !== undefined ) { + + bindings[ i ] = binding; + + } else { + + binding = bindings[ i ]; + + if ( binding !== undefined ) { + + // existing binding, make sure the cache knows + + if ( binding._cacheIndex === null ) { + + ++ binding.referenceCount; + this._addInactiveBinding( binding, rootUuid, trackName ); + + } + + continue; + + } + + const path = prototypeAction && prototypeAction. + _propertyBindings[ i ].binding.parsedPath; + + binding = new PropertyMixer( + PropertyBinding.create( root, trackName, path ), + track.ValueTypeName, track.getValueSize() ); + + ++ binding.referenceCount; + this._addInactiveBinding( binding, rootUuid, trackName ); + + bindings[ i ] = binding; + + } + + interpolants[ i ].resultBuffer = binding.buffer; + + } + + }, + + _activateAction: function ( action ) { + + if ( ! this._isActiveAction( action ) ) { + + if ( action._cacheIndex === null ) { + + // this action has been forgotten by the cache, but the user + // appears to be still using it -> rebind + + const rootUuid = ( action._localRoot || this._root ).uuid, + clipUuid = action._clip.uuid, + actionsForClip = this._actionsByClip[ clipUuid ]; + + this._bindAction( action, + actionsForClip && actionsForClip.knownActions[ 0 ] ); + + this._addInactiveAction( action, clipUuid, rootUuid ); + + } + + const bindings = action._propertyBindings; + + // increment reference counts / sort out state + for ( let i = 0, n = bindings.length; i !== n; ++ i ) { + + const binding = bindings[ i ]; + + if ( binding.useCount ++ === 0 ) { + + this._lendBinding( binding ); + binding.saveOriginalState(); + + } + + } + + this._lendAction( action ); + + } + + }, + + _deactivateAction: function ( action ) { + + if ( this._isActiveAction( action ) ) { + + const bindings = action._propertyBindings; + + // decrement reference counts / sort out state + for ( let i = 0, n = bindings.length; i !== n; ++ i ) { + + const binding = bindings[ i ]; + + if ( -- binding.useCount === 0 ) { + + binding.restoreOriginalState(); + this._takeBackBinding( binding ); + + } + + } + + this._takeBackAction( action ); + + } + + }, + + // Memory manager + + _initMemoryManager: function () { + + this._actions = []; // 'nActiveActions' followed by inactive ones + this._nActiveActions = 0; + + this._actionsByClip = {}; + // inside: + // { + // knownActions: Array< AnimationAction > - used as prototypes + // actionByRoot: AnimationAction - lookup + // } + + + this._bindings = []; // 'nActiveBindings' followed by inactive ones + this._nActiveBindings = 0; + + this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer > + + + this._controlInterpolants = []; // same game as above + this._nActiveControlInterpolants = 0; + + const scope = this; + + this.stats = { + + actions: { + get total() { + + return scope._actions.length; + + }, + get inUse() { + + return scope._nActiveActions; + + } + }, + bindings: { + get total() { + + return scope._bindings.length; + + }, + get inUse() { + + return scope._nActiveBindings; + + } + }, + controlInterpolants: { + get total() { + + return scope._controlInterpolants.length; + + }, + get inUse() { + + return scope._nActiveControlInterpolants; + + } + } + + }; + + }, + + // Memory management for AnimationAction objects + + _isActiveAction: function ( action ) { + + const index = action._cacheIndex; + return index !== null && index < this._nActiveActions; + + }, + + _addInactiveAction: function ( action, clipUuid, rootUuid ) { + + const actions = this._actions, + actionsByClip = this._actionsByClip; + + let actionsForClip = actionsByClip[ clipUuid ]; + + if ( actionsForClip === undefined ) { + + actionsForClip = { + + knownActions: [ action ], + actionByRoot: {} + + }; + + action._byClipCacheIndex = 0; + + actionsByClip[ clipUuid ] = actionsForClip; + + } else { + + const knownActions = actionsForClip.knownActions; + + action._byClipCacheIndex = knownActions.length; + knownActions.push( action ); + + } + + action._cacheIndex = actions.length; + actions.push( action ); + + actionsForClip.actionByRoot[ rootUuid ] = action; + + }, + + _removeInactiveAction: function ( action ) { + + const actions = this._actions, + lastInactiveAction = actions[ actions.length - 1 ], + cacheIndex = action._cacheIndex; + + lastInactiveAction._cacheIndex = cacheIndex; + actions[ cacheIndex ] = lastInactiveAction; + actions.pop(); + + action._cacheIndex = null; + + + const clipUuid = action._clip.uuid, + actionsByClip = this._actionsByClip, + actionsForClip = actionsByClip[ clipUuid ], + knownActionsForClip = actionsForClip.knownActions, + + lastKnownAction = + knownActionsForClip[ knownActionsForClip.length - 1 ], + + byClipCacheIndex = action._byClipCacheIndex; + + lastKnownAction._byClipCacheIndex = byClipCacheIndex; + knownActionsForClip[ byClipCacheIndex ] = lastKnownAction; + knownActionsForClip.pop(); + + action._byClipCacheIndex = null; + + + const actionByRoot = actionsForClip.actionByRoot, + rootUuid = ( action._localRoot || this._root ).uuid; + + delete actionByRoot[ rootUuid ]; + + if ( knownActionsForClip.length === 0 ) { + + delete actionsByClip[ clipUuid ]; + + } + + this._removeInactiveBindingsForAction( action ); + + }, + + _removeInactiveBindingsForAction: function ( action ) { + + const bindings = action._propertyBindings; + + for ( let i = 0, n = bindings.length; i !== n; ++ i ) { + + const binding = bindings[ i ]; + + if ( -- binding.referenceCount === 0 ) { + + this._removeInactiveBinding( binding ); + + } + + } + + }, + + _lendAction: function ( action ) { + + // [ active actions | inactive actions ] + // [ active actions >| inactive actions ] + // s a + // <-swap-> + // a s + + const actions = this._actions, + prevIndex = action._cacheIndex, + + lastActiveIndex = this._nActiveActions ++, + + firstInactiveAction = actions[ lastActiveIndex ]; + + action._cacheIndex = lastActiveIndex; + actions[ lastActiveIndex ] = action; + + firstInactiveAction._cacheIndex = prevIndex; + actions[ prevIndex ] = firstInactiveAction; + + }, + + _takeBackAction: function ( action ) { + + // [ active actions | inactive actions ] + // [ active actions |< inactive actions ] + // a s + // <-swap-> + // s a + + const actions = this._actions, + prevIndex = action._cacheIndex, + + firstInactiveIndex = -- this._nActiveActions, + + lastActiveAction = actions[ firstInactiveIndex ]; + + action._cacheIndex = firstInactiveIndex; + actions[ firstInactiveIndex ] = action; + + lastActiveAction._cacheIndex = prevIndex; + actions[ prevIndex ] = lastActiveAction; + + }, + + // Memory management for PropertyMixer objects + + _addInactiveBinding: function ( binding, rootUuid, trackName ) { + + const bindingsByRoot = this._bindingsByRootAndName, + bindings = this._bindings; + + let bindingByName = bindingsByRoot[ rootUuid ]; + + if ( bindingByName === undefined ) { + + bindingByName = {}; + bindingsByRoot[ rootUuid ] = bindingByName; + + } + + bindingByName[ trackName ] = binding; + + binding._cacheIndex = bindings.length; + bindings.push( binding ); + + }, + + _removeInactiveBinding: function ( binding ) { + + const bindings = this._bindings, + propBinding = binding.binding, + rootUuid = propBinding.rootNode.uuid, + trackName = propBinding.path, + bindingsByRoot = this._bindingsByRootAndName, + bindingByName = bindingsByRoot[ rootUuid ], + + lastInactiveBinding = bindings[ bindings.length - 1 ], + cacheIndex = binding._cacheIndex; + + lastInactiveBinding._cacheIndex = cacheIndex; + bindings[ cacheIndex ] = lastInactiveBinding; + bindings.pop(); + + delete bindingByName[ trackName ]; + + if ( Object.keys( bindingByName ).length === 0 ) { + + delete bindingsByRoot[ rootUuid ]; + + } + + }, + + _lendBinding: function ( binding ) { + + const bindings = this._bindings, + prevIndex = binding._cacheIndex, + + lastActiveIndex = this._nActiveBindings ++, + + firstInactiveBinding = bindings[ lastActiveIndex ]; + + binding._cacheIndex = lastActiveIndex; + bindings[ lastActiveIndex ] = binding; + + firstInactiveBinding._cacheIndex = prevIndex; + bindings[ prevIndex ] = firstInactiveBinding; + + }, + + _takeBackBinding: function ( binding ) { + + const bindings = this._bindings, + prevIndex = binding._cacheIndex, + + firstInactiveIndex = -- this._nActiveBindings, + + lastActiveBinding = bindings[ firstInactiveIndex ]; + + binding._cacheIndex = firstInactiveIndex; + bindings[ firstInactiveIndex ] = binding; + + lastActiveBinding._cacheIndex = prevIndex; + bindings[ prevIndex ] = lastActiveBinding; + + }, + + + // Memory management of Interpolants for weight and time scale + + _lendControlInterpolant: function () { + + const interpolants = this._controlInterpolants, + lastActiveIndex = this._nActiveControlInterpolants ++; + + let interpolant = interpolants[ lastActiveIndex ]; + + if ( interpolant === undefined ) { + + interpolant = new LinearInterpolant( + new Float32Array( 2 ), new Float32Array( 2 ), + 1, this._controlInterpolantsResultBuffer ); + + interpolant.__cacheIndex = lastActiveIndex; + interpolants[ lastActiveIndex ] = interpolant; + + } + + return interpolant; + + }, + + _takeBackControlInterpolant: function ( interpolant ) { + + const interpolants = this._controlInterpolants, + prevIndex = interpolant.__cacheIndex, + + firstInactiveIndex = -- this._nActiveControlInterpolants, + + lastActiveInterpolant = interpolants[ firstInactiveIndex ]; + + interpolant.__cacheIndex = firstInactiveIndex; + interpolants[ firstInactiveIndex ] = interpolant; + + lastActiveInterpolant.__cacheIndex = prevIndex; + interpolants[ prevIndex ] = lastActiveInterpolant; + + }, + + _controlInterpolantsResultBuffer: new Float32Array( 1 ), + + // return an action for a clip optionally using a custom root target + // object (this method allocates a lot of dynamic memory in case a + // previously unknown clip/root combination is specified) + clipAction: function ( clip, optionalRoot, blendMode ) { + + const root = optionalRoot || this._root, + rootUuid = root.uuid; + + let clipObject = typeof clip === 'string' ? AnimationClip.findByName( root, clip ) : clip; + + const clipUuid = clipObject !== null ? clipObject.uuid : clip; + + const actionsForClip = this._actionsByClip[ clipUuid ]; + let prototypeAction = null; + + if ( blendMode === undefined ) { + + if ( clipObject !== null ) { + + blendMode = clipObject.blendMode; + + } else { + + blendMode = NormalAnimationBlendMode; + + } + + } + + if ( actionsForClip !== undefined ) { + + const existingAction = actionsForClip.actionByRoot[ rootUuid ]; + + if ( existingAction !== undefined && existingAction.blendMode === blendMode ) { + + return existingAction; + + } + + // we know the clip, so we don't have to parse all + // the bindings again but can just copy + prototypeAction = actionsForClip.knownActions[ 0 ]; + + // also, take the clip from the prototype action + if ( clipObject === null ) + clipObject = prototypeAction._clip; + + } + + // clip must be known when specified via string + if ( clipObject === null ) return null; + + // allocate all resources required to run it + const newAction = new AnimationAction( this, clipObject, optionalRoot, blendMode ); + + this._bindAction( newAction, prototypeAction ); + + // and make the action known to the memory manager + this._addInactiveAction( newAction, clipUuid, rootUuid ); + + return newAction; + + }, + + // get an existing action + existingAction: function ( clip, optionalRoot ) { + + const root = optionalRoot || this._root, + rootUuid = root.uuid, + + clipObject = typeof clip === 'string' ? + AnimationClip.findByName( root, clip ) : clip, + + clipUuid = clipObject ? clipObject.uuid : clip, + + actionsForClip = this._actionsByClip[ clipUuid ]; + + if ( actionsForClip !== undefined ) { + + return actionsForClip.actionByRoot[ rootUuid ] || null; + + } + + return null; + + }, + + // deactivates all previously scheduled actions + stopAllAction: function () { + + const actions = this._actions, + nActions = this._nActiveActions; + + for ( let i = nActions - 1; i >= 0; -- i ) { + + actions[ i ].stop(); + + } + + return this; + + }, + + // advance the time and update apply the animation + update: function ( deltaTime ) { + + deltaTime *= this.timeScale; + + const actions = this._actions, + nActions = this._nActiveActions, + + time = this.time += deltaTime, + timeDirection = Math.sign( deltaTime ), + + accuIndex = this._accuIndex ^= 1; + + // run active actions + + for ( let i = 0; i !== nActions; ++ i ) { + + const action = actions[ i ]; + + action._update( time, deltaTime, timeDirection, accuIndex ); + + } + + // update scene graph + + const bindings = this._bindings, + nBindings = this._nActiveBindings; + + for ( let i = 0; i !== nBindings; ++ i ) { + + bindings[ i ].apply( accuIndex ); + + } + + return this; + + }, + + // Allows you to seek to a specific time in an animation. + setTime: function ( timeInSeconds ) { + + this.time = 0; // Zero out time attribute for AnimationMixer object; + for ( let i = 0; i < this._actions.length; i ++ ) { + + this._actions[ i ].time = 0; // Zero out time attribute for all associated AnimationAction objects. + + } + + return this.update( timeInSeconds ); // Update used to set exact time. Returns "this" AnimationMixer object. + + }, + + // return this mixer's root target object + getRoot: function () { + + return this._root; + + }, + + // free all resources specific to a particular clip + uncacheClip: function ( clip ) { + + const actions = this._actions, + clipUuid = clip.uuid, + actionsByClip = this._actionsByClip, + actionsForClip = actionsByClip[ clipUuid ]; + + if ( actionsForClip !== undefined ) { + + // note: just calling _removeInactiveAction would mess up the + // iteration state and also require updating the state we can + // just throw away + + const actionsToRemove = actionsForClip.knownActions; + + for ( let i = 0, n = actionsToRemove.length; i !== n; ++ i ) { + + const action = actionsToRemove[ i ]; + + this._deactivateAction( action ); + + const cacheIndex = action._cacheIndex, + lastInactiveAction = actions[ actions.length - 1 ]; + + action._cacheIndex = null; + action._byClipCacheIndex = null; + + lastInactiveAction._cacheIndex = cacheIndex; + actions[ cacheIndex ] = lastInactiveAction; + actions.pop(); + + this._removeInactiveBindingsForAction( action ); + + } + + delete actionsByClip[ clipUuid ]; + + } + + }, + + // free all resources specific to a particular root target object + uncacheRoot: function ( root ) { + + const rootUuid = root.uuid, + actionsByClip = this._actionsByClip; + + for ( const clipUuid in actionsByClip ) { + + const actionByRoot = actionsByClip[ clipUuid ].actionByRoot, + action = actionByRoot[ rootUuid ]; + + if ( action !== undefined ) { + + this._deactivateAction( action ); + this._removeInactiveAction( action ); + + } + + } + + const bindingsByRoot = this._bindingsByRootAndName, + bindingByName = bindingsByRoot[ rootUuid ]; + + if ( bindingByName !== undefined ) { + + for ( const trackName in bindingByName ) { + + const binding = bindingByName[ trackName ]; + binding.restoreOriginalState(); + this._removeInactiveBinding( binding ); + + } + + } + + }, + + // remove a targeted clip from the cache + uncacheAction: function ( clip, optionalRoot ) { + + const action = this.existingAction( clip, optionalRoot ); + + if ( action !== null ) { + + this._deactivateAction( action ); + this._removeInactiveAction( action ); + + } + + } + +} ); + +class Uniform { + + constructor( value ) { + + if ( typeof value === 'string' ) { + + console.warn( 'THREE.Uniform: Type parameter is no longer needed.' ); + value = arguments[ 1 ]; + + } + + this.value = value; + + } + + clone() { + + return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() ); + + } + +} + +function InstancedInterleavedBuffer( array, stride, meshPerAttribute ) { + + InterleavedBuffer.call( this, array, stride ); + + this.meshPerAttribute = meshPerAttribute || 1; + +} + +InstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), { + + constructor: InstancedInterleavedBuffer, + + isInstancedInterleavedBuffer: true, + + copy: function ( source ) { + + InterleavedBuffer.prototype.copy.call( this, source ); + + this.meshPerAttribute = source.meshPerAttribute; + + return this; + + }, + + clone: function ( data ) { + + const ib = InterleavedBuffer.prototype.clone.call( this, data ); + + ib.meshPerAttribute = this.meshPerAttribute; + + return ib; + + }, + + toJSON: function ( data ) { + + const json = InterleavedBuffer.prototype.toJSON.call( this, data ); + + json.isInstancedInterleavedBuffer = true; + json.meshPerAttribute = this.meshPerAttribute; + + return json; + + } + +} ); + +function GLBufferAttribute( buffer, type, itemSize, elementSize, count ) { + + this.buffer = buffer; + this.type = type; + this.itemSize = itemSize; + this.elementSize = elementSize; + this.count = count; + + this.version = 0; + +} + +Object.defineProperty( GLBufferAttribute.prototype, 'needsUpdate', { + + set: function ( value ) { + + if ( value === true ) this.version ++; + + } + +} ); + +Object.assign( GLBufferAttribute.prototype, { + + isGLBufferAttribute: true, + + setBuffer: function ( buffer ) { + + this.buffer = buffer; + + return this; + + }, + + setType: function ( type, elementSize ) { + + this.type = type; + this.elementSize = elementSize; + + return this; + + }, + + setItemSize: function ( itemSize ) { + + this.itemSize = itemSize; + + return this; + + }, + + setCount: function ( count ) { + + this.count = count; + + return this; + + }, + +} ); + +function Raycaster( origin, direction, near, far ) { + + this.ray = new Ray( origin, direction ); + // direction is assumed to be normalized (for accurate distance calculations) + + this.near = near || 0; + this.far = far || Infinity; + this.camera = null; + this.layers = new Layers(); + + this.params = { + Mesh: {}, + Line: { threshold: 1 }, + LOD: {}, + Points: { threshold: 1 }, + Sprite: {} + }; + + Object.defineProperties( this.params, { + PointCloud: { + get: function () { + + console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' ); + return this.Points; + + } + } + } ); + +} + +function ascSort( a, b ) { + + return a.distance - b.distance; + +} + +function intersectObject( object, raycaster, intersects, recursive ) { + + if ( object.layers.test( raycaster.layers ) ) { + + object.raycast( raycaster, intersects ); + + } + + if ( recursive === true ) { + + const children = object.children; + + for ( let i = 0, l = children.length; i < l; i ++ ) { + + intersectObject( children[ i ], raycaster, intersects, true ); + + } + + } + +} + +Object.assign( Raycaster.prototype, { + + set: function ( origin, direction ) { + + // direction is assumed to be normalized (for accurate distance calculations) + + this.ray.set( origin, direction ); + + }, + + setFromCamera: function ( coords, camera ) { + + if ( camera && camera.isPerspectiveCamera ) { + + this.ray.origin.setFromMatrixPosition( camera.matrixWorld ); + this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize(); + this.camera = camera; + + } else if ( camera && camera.isOrthographicCamera ) { + + this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera + this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld ); + this.camera = camera; + + } else { + + console.error( 'THREE.Raycaster: Unsupported camera type: ' + camera.type ); + + } + + }, + + intersectObject: function ( object, recursive, optionalTarget ) { + + const intersects = optionalTarget || []; + + intersectObject( object, this, intersects, recursive ); + + intersects.sort( ascSort ); + + return intersects; + + }, + + intersectObjects: function ( objects, recursive, optionalTarget ) { + + const intersects = optionalTarget || []; + + if ( Array.isArray( objects ) === false ) { + + console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' ); + return intersects; + + } + + for ( let i = 0, l = objects.length; i < l; i ++ ) { + + intersectObject( objects[ i ], this, intersects, recursive ); + + } + + intersects.sort( ascSort ); + + return intersects; + + } + +} ); + +/** + * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system + * + * The polar angle (phi) is measured from the positive y-axis. The positive y-axis is up. + * The azimuthal angle (theta) is measured from the positive z-axis. + */ + +class Spherical { + + constructor( radius = 1, phi = 0, theta = 0 ) { + + this.radius = radius; + this.phi = phi; // polar angle + this.theta = theta; // azimuthal angle + + return this; + + } + + set( radius, phi, theta ) { + + this.radius = radius; + this.phi = phi; + this.theta = theta; + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( other ) { + + this.radius = other.radius; + this.phi = other.phi; + this.theta = other.theta; + + return this; + + } + + // restrict phi to be betwee EPS and PI-EPS + makeSafe() { + + const EPS = 0.000001; + this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) ); + + return this; + + } + + setFromVector3( v ) { + + return this.setFromCartesianCoords( v.x, v.y, v.z ); + + } + + setFromCartesianCoords( x, y, z ) { + + this.radius = Math.sqrt( x * x + y * y + z * z ); + + if ( this.radius === 0 ) { + + this.theta = 0; + this.phi = 0; + + } else { + + this.theta = Math.atan2( x, z ); + this.phi = Math.acos( MathUtils.clamp( y / this.radius, - 1, 1 ) ); + + } + + return this; + + } + +} + +/** + * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system + */ + +class Cylindrical { + + constructor( radius, theta, y ) { + + this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane + this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis + this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane + + return this; + + } + + set( radius, theta, y ) { + + this.radius = radius; + this.theta = theta; + this.y = y; + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( other ) { + + this.radius = other.radius; + this.theta = other.theta; + this.y = other.y; + + return this; + + } + + setFromVector3( v ) { + + return this.setFromCartesianCoords( v.x, v.y, v.z ); + + } + + setFromCartesianCoords( x, y, z ) { + + this.radius = Math.sqrt( x * x + z * z ); + this.theta = Math.atan2( x, z ); + this.y = y; + + return this; + + } + +} + +const _vector$8 = /*@__PURE__*/ new Vector2(); + +class Box2 { + + constructor( min, max ) { + + Object.defineProperty( this, 'isBox2', { value: true } ); + + this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity ); + this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity ); + + } + + set( min, max ) { + + this.min.copy( min ); + this.max.copy( max ); + + return this; + + } + + setFromPoints( points ) { + + this.makeEmpty(); + + for ( let i = 0, il = points.length; i < il; i ++ ) { + + this.expandByPoint( points[ i ] ); + + } + + return this; + + } + + setFromCenterAndSize( center, size ) { + + const halfSize = _vector$8.copy( size ).multiplyScalar( 0.5 ); + this.min.copy( center ).sub( halfSize ); + this.max.copy( center ).add( halfSize ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( box ) { + + this.min.copy( box.min ); + this.max.copy( box.max ); + + return this; + + } + + makeEmpty() { + + this.min.x = this.min.y = + Infinity; + this.max.x = this.max.y = - Infinity; + + return this; + + } + + isEmpty() { + + // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes + + return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ); + + } + + getCenter( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Box2: .getCenter() target is now required' ); + target = new Vector2(); + + } + + return this.isEmpty() ? target.set( 0, 0 ) : target.addVectors( this.min, this.max ).multiplyScalar( 0.5 ); + + } + + getSize( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Box2: .getSize() target is now required' ); + target = new Vector2(); + + } + + return this.isEmpty() ? target.set( 0, 0 ) : target.subVectors( this.max, this.min ); + + } + + expandByPoint( point ) { + + this.min.min( point ); + this.max.max( point ); + + return this; + + } + + expandByVector( vector ) { + + this.min.sub( vector ); + this.max.add( vector ); + + return this; + + } + + expandByScalar( scalar ) { + + this.min.addScalar( - scalar ); + this.max.addScalar( scalar ); + + return this; + + } + + containsPoint( point ) { + + return point.x < this.min.x || point.x > this.max.x || + point.y < this.min.y || point.y > this.max.y ? false : true; + + } + + containsBox( box ) { + + return this.min.x <= box.min.x && box.max.x <= this.max.x && + this.min.y <= box.min.y && box.max.y <= this.max.y; + + } + + getParameter( point, target ) { + + // This can potentially have a divide by zero if the box + // has a size dimension of 0. + + if ( target === undefined ) { + + console.warn( 'THREE.Box2: .getParameter() target is now required' ); + target = new Vector2(); + + } + + return target.set( + ( point.x - this.min.x ) / ( this.max.x - this.min.x ), + ( point.y - this.min.y ) / ( this.max.y - this.min.y ) + ); + + } + + intersectsBox( box ) { + + // using 4 splitting planes to rule out intersections + + return box.max.x < this.min.x || box.min.x > this.max.x || + box.max.y < this.min.y || box.min.y > this.max.y ? false : true; + + } + + clampPoint( point, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Box2: .clampPoint() target is now required' ); + target = new Vector2(); + + } + + return target.copy( point ).clamp( this.min, this.max ); + + } + + distanceToPoint( point ) { + + const clampedPoint = _vector$8.copy( point ).clamp( this.min, this.max ); + return clampedPoint.sub( point ).length(); + + } + + intersect( box ) { + + this.min.max( box.min ); + this.max.min( box.max ); + + return this; + + } + + union( box ) { + + this.min.min( box.min ); + this.max.max( box.max ); + + return this; + + } + + translate( offset ) { + + this.min.add( offset ); + this.max.add( offset ); + + return this; + + } + + equals( box ) { + + return box.min.equals( this.min ) && box.max.equals( this.max ); + + } + +} + +const _startP = /*@__PURE__*/ new Vector3(); +const _startEnd = /*@__PURE__*/ new Vector3(); + +class Line3 { + + constructor( start, end ) { + + this.start = ( start !== undefined ) ? start : new Vector3(); + this.end = ( end !== undefined ) ? end : new Vector3(); + + } + + set( start, end ) { + + this.start.copy( start ); + this.end.copy( end ); + + return this; + + } + + clone() { + + return new this.constructor().copy( this ); + + } + + copy( line ) { + + this.start.copy( line.start ); + this.end.copy( line.end ); + + return this; + + } + + getCenter( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Line3: .getCenter() target is now required' ); + target = new Vector3(); + + } + + return target.addVectors( this.start, this.end ).multiplyScalar( 0.5 ); + + } + + delta( target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Line3: .delta() target is now required' ); + target = new Vector3(); + + } + + return target.subVectors( this.end, this.start ); + + } + + distanceSq() { + + return this.start.distanceToSquared( this.end ); + + } + + distance() { + + return this.start.distanceTo( this.end ); + + } + + at( t, target ) { + + if ( target === undefined ) { + + console.warn( 'THREE.Line3: .at() target is now required' ); + target = new Vector3(); + + } + + return this.delta( target ).multiplyScalar( t ).add( this.start ); + + } + + closestPointToPointParameter( point, clampToLine ) { + + _startP.subVectors( point, this.start ); + _startEnd.subVectors( this.end, this.start ); + + const startEnd2 = _startEnd.dot( _startEnd ); + const startEnd_startP = _startEnd.dot( _startP ); + + let t = startEnd_startP / startEnd2; + + if ( clampToLine ) { + + t = MathUtils.clamp( t, 0, 1 ); + + } + + return t; + + } + + closestPointToPoint( point, clampToLine, target ) { + + const t = this.closestPointToPointParameter( point, clampToLine ); + + if ( target === undefined ) { + + console.warn( 'THREE.Line3: .closestPointToPoint() target is now required' ); + target = new Vector3(); + + } + + return this.delta( target ).multiplyScalar( t ).add( this.start ); + + } + + applyMatrix4( matrix ) { + + this.start.applyMatrix4( matrix ); + this.end.applyMatrix4( matrix ); + + return this; + + } + + equals( line ) { + + return line.start.equals( this.start ) && line.end.equals( this.end ); + + } + +} + +function ImmediateRenderObject( material ) { + + Object3D.call( this ); + + this.material = material; + this.render = function ( /* renderCallback */ ) {}; + + this.hasPositions = false; + this.hasNormals = false; + this.hasColors = false; + this.hasUvs = false; + + this.positionArray = null; + this.normalArray = null; + this.colorArray = null; + this.uvArray = null; + + this.count = 0; + +} + +ImmediateRenderObject.prototype = Object.create( Object3D.prototype ); +ImmediateRenderObject.prototype.constructor = ImmediateRenderObject; + +ImmediateRenderObject.prototype.isImmediateRenderObject = true; + +const _vector$9 = /*@__PURE__*/ new Vector3(); + +class SpotLightHelper extends Object3D { + + constructor( light, color ) { + + super(); + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + this.color = color; + + const geometry = new BufferGeometry(); + + const positions = [ + 0, 0, 0, 0, 0, 1, + 0, 0, 0, 1, 0, 1, + 0, 0, 0, - 1, 0, 1, + 0, 0, 0, 0, 1, 1, + 0, 0, 0, 0, - 1, 1 + ]; + + for ( let i = 0, j = 1, l = 32; i < l; i ++, j ++ ) { + + const p1 = ( i / l ) * Math.PI * 2; + const p2 = ( j / l ) * Math.PI * 2; + + positions.push( + Math.cos( p1 ), Math.sin( p1 ), 1, + Math.cos( p2 ), Math.sin( p2 ), 1 + ); + + } + + geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) ); + + const material = new LineBasicMaterial( { fog: false, toneMapped: false } ); + + this.cone = new LineSegments( geometry, material ); + this.add( this.cone ); + + this.update(); + + } + + dispose() { + + this.cone.geometry.dispose(); + this.cone.material.dispose(); + + } + + update() { + + this.light.updateMatrixWorld(); + + const coneLength = this.light.distance ? this.light.distance : 1000; + const coneWidth = coneLength * Math.tan( this.light.angle ); + + this.cone.scale.set( coneWidth, coneWidth, coneLength ); + + _vector$9.setFromMatrixPosition( this.light.target.matrixWorld ); + + this.cone.lookAt( _vector$9 ); + + if ( this.color !== undefined ) { + + this.cone.material.color.set( this.color ); + + } else { + + this.cone.material.color.copy( this.light.color ); + + } + + } + +} + +const _vector$a = /*@__PURE__*/ new Vector3(); +const _boneMatrix = /*@__PURE__*/ new Matrix4(); +const _matrixWorldInv = /*@__PURE__*/ new Matrix4(); + + +class SkeletonHelper extends LineSegments { + + constructor( object ) { + + const bones = getBoneList( object ); + + const geometry = new BufferGeometry(); + + const vertices = []; + const colors = []; + + const color1 = new Color( 0, 0, 1 ); + const color2 = new Color( 0, 1, 0 ); + + for ( let i = 0; i < bones.length; i ++ ) { + + const bone = bones[ i ]; + + if ( bone.parent && bone.parent.isBone ) { + + vertices.push( 0, 0, 0 ); + vertices.push( 0, 0, 0 ); + colors.push( color1.r, color1.g, color1.b ); + colors.push( color2.r, color2.g, color2.b ); + + } + + } + + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + const material = new LineBasicMaterial( { vertexColors: true, depthTest: false, depthWrite: false, toneMapped: false, transparent: true } ); + + super( geometry, material ); + + this.type = 'SkeletonHelper'; + this.isSkeletonHelper = true; + + this.root = object; + this.bones = bones; + + this.matrix = object.matrixWorld; + this.matrixAutoUpdate = false; + + } + + updateMatrixWorld( force ) { + + const bones = this.bones; + + const geometry = this.geometry; + const position = geometry.getAttribute( 'position' ); + + _matrixWorldInv.copy( this.root.matrixWorld ).invert(); + + for ( let i = 0, j = 0; i < bones.length; i ++ ) { + + const bone = bones[ i ]; + + if ( bone.parent && bone.parent.isBone ) { + + _boneMatrix.multiplyMatrices( _matrixWorldInv, bone.matrixWorld ); + _vector$a.setFromMatrixPosition( _boneMatrix ); + position.setXYZ( j, _vector$a.x, _vector$a.y, _vector$a.z ); + + _boneMatrix.multiplyMatrices( _matrixWorldInv, bone.parent.matrixWorld ); + _vector$a.setFromMatrixPosition( _boneMatrix ); + position.setXYZ( j + 1, _vector$a.x, _vector$a.y, _vector$a.z ); + + j += 2; + + } + + } + + geometry.getAttribute( 'position' ).needsUpdate = true; + + super.updateMatrixWorld( force ); + + } + +} + + +function getBoneList( object ) { + + const boneList = []; + + if ( object && object.isBone ) { + + boneList.push( object ); + + } + + for ( let i = 0; i < object.children.length; i ++ ) { + + boneList.push.apply( boneList, getBoneList( object.children[ i ] ) ); + + } + + return boneList; + +} + +class PointLightHelper extends Mesh { + + constructor( light, sphereSize, color ) { + + const geometry = new SphereBufferGeometry( sphereSize, 4, 2 ); + const material = new MeshBasicMaterial( { wireframe: true, fog: false, toneMapped: false } ); + + super( geometry, material ); + + this.light = light; + this.light.updateMatrixWorld(); + + this.color = color; + + this.type = 'PointLightHelper'; + + this.matrix = this.light.matrixWorld; + this.matrixAutoUpdate = false; + + this.update(); + + + /* + // TODO: delete this comment? + const distanceGeometry = new THREE.IcosahedronBufferGeometry( 1, 2 ); + const distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } ); + + this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial ); + this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial ); + + const d = light.distance; + + if ( d === 0.0 ) { + + this.lightDistance.visible = false; + + } else { + + this.lightDistance.scale.set( d, d, d ); + + } + + this.add( this.lightDistance ); + */ + + } + + dispose() { + + this.geometry.dispose(); + this.material.dispose(); + + } + + update() { + + if ( this.color !== undefined ) { + + this.material.color.set( this.color ); + + } else { + + this.material.color.copy( this.light.color ); + + } + + /* + const d = this.light.distance; + + if ( d === 0.0 ) { + + this.lightDistance.visible = false; + + } else { + + this.lightDistance.visible = true; + this.lightDistance.scale.set( d, d, d ); + + } + */ + + } + +} + +const _vector$b = /*@__PURE__*/ new Vector3(); +const _color1 = /*@__PURE__*/ new Color(); +const _color2 = /*@__PURE__*/ new Color(); + +class HemisphereLightHelper extends Object3D { + + constructor( light, size, color ) { + + super(); + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + this.color = color; + + const geometry = new OctahedronBufferGeometry( size ); + geometry.rotateY( Math.PI * 0.5 ); + + this.material = new MeshBasicMaterial( { wireframe: true, fog: false, toneMapped: false } ); + if ( this.color === undefined ) this.material.vertexColors = true; + + const position = geometry.getAttribute( 'position' ); + const colors = new Float32Array( position.count * 3 ); + + geometry.setAttribute( 'color', new BufferAttribute( colors, 3 ) ); + + this.add( new Mesh( geometry, this.material ) ); + + this.update(); + + } + + dispose() { + + this.children[ 0 ].geometry.dispose(); + this.children[ 0 ].material.dispose(); + + } + + update() { + + const mesh = this.children[ 0 ]; + + if ( this.color !== undefined ) { + + this.material.color.set( this.color ); + + } else { + + const colors = mesh.geometry.getAttribute( 'color' ); + + _color1.copy( this.light.color ); + _color2.copy( this.light.groundColor ); + + for ( let i = 0, l = colors.count; i < l; i ++ ) { + + const color = ( i < ( l / 2 ) ) ? _color1 : _color2; + + colors.setXYZ( i, color.r, color.g, color.b ); + + } + + colors.needsUpdate = true; + + } + + mesh.lookAt( _vector$b.setFromMatrixPosition( this.light.matrixWorld ).negate() ); + + } + +} + +class GridHelper extends LineSegments { + + constructor( size = 10, divisions = 10, color1 = 0x444444, color2 = 0x888888 ) { + + color1 = new Color( color1 ); + color2 = new Color( color2 ); + + const center = divisions / 2; + const step = size / divisions; + const halfSize = size / 2; + + const vertices = [], colors = []; + + for ( let i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) { + + vertices.push( - halfSize, 0, k, halfSize, 0, k ); + vertices.push( k, 0, - halfSize, k, 0, halfSize ); + + const color = i === center ? color1 : color2; + + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + + } + + const geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } ); + + super( geometry, material ); + + this.type = 'GridHelper'; + + } + +} + +class PolarGridHelper extends LineSegments { + + constructor( radius = 10, radials = 16, circles = 8, divisions = 64, color1 = 0x444444, color2 = 0x888888 ) { + + color1 = new Color( color1 ); + color2 = new Color( color2 ); + + const vertices = []; + const colors = []; + + // create the radials + + for ( let i = 0; i <= radials; i ++ ) { + + const v = ( i / radials ) * ( Math.PI * 2 ); + + const x = Math.sin( v ) * radius; + const z = Math.cos( v ) * radius; + + vertices.push( 0, 0, 0 ); + vertices.push( x, 0, z ); + + const color = ( i & 1 ) ? color1 : color2; + + colors.push( color.r, color.g, color.b ); + colors.push( color.r, color.g, color.b ); + + } + + // create the circles + + for ( let i = 0; i <= circles; i ++ ) { + + const color = ( i & 1 ) ? color1 : color2; + + const r = radius - ( radius / circles * i ); + + for ( let j = 0; j < divisions; j ++ ) { + + // first vertex + + let v = ( j / divisions ) * ( Math.PI * 2 ); + + let x = Math.sin( v ) * r; + let z = Math.cos( v ) * r; + + vertices.push( x, 0, z ); + colors.push( color.r, color.g, color.b ); + + // second vertex + + v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 ); + + x = Math.sin( v ) * r; + z = Math.cos( v ) * r; + + vertices.push( x, 0, z ); + colors.push( color.r, color.g, color.b ); + + } + + } + + const geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } ); + + super( geometry, material ); + + this.type = 'PolarGridHelper'; + + } + +} + +const _v1$6 = /*@__PURE__*/ new Vector3(); +const _v2$3 = /*@__PURE__*/ new Vector3(); +const _v3$1 = /*@__PURE__*/ new Vector3(); + +class DirectionalLightHelper extends Object3D { + + constructor( light, size, color ) { + + super(); + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + this.color = color; + + if ( size === undefined ) size = 1; + + let geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( [ + - size, size, 0, + size, size, 0, + size, - size, 0, + - size, - size, 0, + - size, size, 0 + ], 3 ) ); + + const material = new LineBasicMaterial( { fog: false, toneMapped: false } ); + + this.lightPlane = new Line( geometry, material ); + this.add( this.lightPlane ); + + geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) ); + + this.targetLine = new Line( geometry, material ); + this.add( this.targetLine ); + + this.update(); + + } + + dispose() { + + this.lightPlane.geometry.dispose(); + this.lightPlane.material.dispose(); + this.targetLine.geometry.dispose(); + this.targetLine.material.dispose(); + + } + + update() { + + _v1$6.setFromMatrixPosition( this.light.matrixWorld ); + _v2$3.setFromMatrixPosition( this.light.target.matrixWorld ); + _v3$1.subVectors( _v2$3, _v1$6 ); + + this.lightPlane.lookAt( _v2$3 ); + + if ( this.color !== undefined ) { + + this.lightPlane.material.color.set( this.color ); + this.targetLine.material.color.set( this.color ); + + } else { + + this.lightPlane.material.color.copy( this.light.color ); + this.targetLine.material.color.copy( this.light.color ); + + } + + this.targetLine.lookAt( _v2$3 ); + this.targetLine.scale.z = _v3$1.length(); + + } + +} + +const _vector$c = /*@__PURE__*/ new Vector3(); +const _camera = /*@__PURE__*/ new Camera(); + +/** + * - shows frustum, line of sight and up of the camera + * - suitable for fast updates + * - based on frustum visualization in lightgl.js shadowmap example + * http://evanw.github.com/lightgl.js/tests/shadowmap.html + */ + +class CameraHelper extends LineSegments { + + constructor( camera ) { + + const geometry = new BufferGeometry(); + const material = new LineBasicMaterial( { color: 0xffffff, vertexColors: true, toneMapped: false } ); + + const vertices = []; + const colors = []; + + const pointMap = {}; + + // colors + + const colorFrustum = new Color( 0xffaa00 ); + const colorCone = new Color( 0xff0000 ); + const colorUp = new Color( 0x00aaff ); + const colorTarget = new Color( 0xffffff ); + const colorCross = new Color( 0x333333 ); + + // near + + addLine( 'n1', 'n2', colorFrustum ); + addLine( 'n2', 'n4', colorFrustum ); + addLine( 'n4', 'n3', colorFrustum ); + addLine( 'n3', 'n1', colorFrustum ); + + // far + + addLine( 'f1', 'f2', colorFrustum ); + addLine( 'f2', 'f4', colorFrustum ); + addLine( 'f4', 'f3', colorFrustum ); + addLine( 'f3', 'f1', colorFrustum ); + + // sides + + addLine( 'n1', 'f1', colorFrustum ); + addLine( 'n2', 'f2', colorFrustum ); + addLine( 'n3', 'f3', colorFrustum ); + addLine( 'n4', 'f4', colorFrustum ); + + // cone + + addLine( 'p', 'n1', colorCone ); + addLine( 'p', 'n2', colorCone ); + addLine( 'p', 'n3', colorCone ); + addLine( 'p', 'n4', colorCone ); + + // up + + addLine( 'u1', 'u2', colorUp ); + addLine( 'u2', 'u3', colorUp ); + addLine( 'u3', 'u1', colorUp ); + + // target + + addLine( 'c', 't', colorTarget ); + addLine( 'p', 'c', colorCross ); + + // cross + + addLine( 'cn1', 'cn2', colorCross ); + addLine( 'cn3', 'cn4', colorCross ); + + addLine( 'cf1', 'cf2', colorCross ); + addLine( 'cf3', 'cf4', colorCross ); + + function addLine( a, b, color ) { + + addPoint( a, color ); + addPoint( b, color ); + + } + + function addPoint( id, color ) { + + vertices.push( 0, 0, 0 ); + colors.push( color.r, color.g, color.b ); + + if ( pointMap[ id ] === undefined ) { + + pointMap[ id ] = []; + + } + + pointMap[ id ].push( ( vertices.length / 3 ) - 1 ); + + } + + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + super( geometry, material ); + + this.type = 'CameraHelper'; + + this.camera = camera; + if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix(); + + this.matrix = camera.matrixWorld; + this.matrixAutoUpdate = false; + + this.pointMap = pointMap; + + this.update(); + + } + + update() { + + const geometry = this.geometry; + const pointMap = this.pointMap; + + const w = 1, h = 1; + + // we need just camera projection matrix inverse + // world matrix must be identity + + _camera.projectionMatrixInverse.copy( this.camera.projectionMatrixInverse ); + + // center / target + + setPoint( 'c', pointMap, geometry, _camera, 0, 0, - 1 ); + setPoint( 't', pointMap, geometry, _camera, 0, 0, 1 ); + + // near + + setPoint( 'n1', pointMap, geometry, _camera, - w, - h, - 1 ); + setPoint( 'n2', pointMap, geometry, _camera, w, - h, - 1 ); + setPoint( 'n3', pointMap, geometry, _camera, - w, h, - 1 ); + setPoint( 'n4', pointMap, geometry, _camera, w, h, - 1 ); + + // far + + setPoint( 'f1', pointMap, geometry, _camera, - w, - h, 1 ); + setPoint( 'f2', pointMap, geometry, _camera, w, - h, 1 ); + setPoint( 'f3', pointMap, geometry, _camera, - w, h, 1 ); + setPoint( 'f4', pointMap, geometry, _camera, w, h, 1 ); + + // up + + setPoint( 'u1', pointMap, geometry, _camera, w * 0.7, h * 1.1, - 1 ); + setPoint( 'u2', pointMap, geometry, _camera, - w * 0.7, h * 1.1, - 1 ); + setPoint( 'u3', pointMap, geometry, _camera, 0, h * 2, - 1 ); + + // cross + + setPoint( 'cf1', pointMap, geometry, _camera, - w, 0, 1 ); + setPoint( 'cf2', pointMap, geometry, _camera, w, 0, 1 ); + setPoint( 'cf3', pointMap, geometry, _camera, 0, - h, 1 ); + setPoint( 'cf4', pointMap, geometry, _camera, 0, h, 1 ); + + setPoint( 'cn1', pointMap, geometry, _camera, - w, 0, - 1 ); + setPoint( 'cn2', pointMap, geometry, _camera, w, 0, - 1 ); + setPoint( 'cn3', pointMap, geometry, _camera, 0, - h, - 1 ); + setPoint( 'cn4', pointMap, geometry, _camera, 0, h, - 1 ); + + geometry.getAttribute( 'position' ).needsUpdate = true; + + } + +} + + +function setPoint( point, pointMap, geometry, camera, x, y, z ) { + + _vector$c.set( x, y, z ).unproject( camera ); + + const points = pointMap[ point ]; + + if ( points !== undefined ) { + + const position = geometry.getAttribute( 'position' ); + + for ( let i = 0, l = points.length; i < l; i ++ ) { + + position.setXYZ( points[ i ], _vector$c.x, _vector$c.y, _vector$c.z ); + + } + + } + +} + +const _box$3 = /*@__PURE__*/ new Box3(); + +class BoxHelper extends LineSegments { + + constructor( object, color = 0xffff00 ) { + + const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] ); + const positions = new Float32Array( 8 * 3 ); + + const geometry = new BufferGeometry(); + geometry.setIndex( new BufferAttribute( indices, 1 ) ); + geometry.setAttribute( 'position', new BufferAttribute( positions, 3 ) ); + + super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); + + this.object = object; + this.type = 'BoxHelper'; + + this.matrixAutoUpdate = false; + + this.update(); + + } + + update( object ) { + + if ( object !== undefined ) { + + console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' ); + + } + + if ( this.object !== undefined ) { + + _box$3.setFromObject( this.object ); + + } + + if ( _box$3.isEmpty() ) return; + + const min = _box$3.min; + const max = _box$3.max; + + /* + 5____4 + 1/___0/| + | 6__|_7 + 2/___3/ + + 0: max.x, max.y, max.z + 1: min.x, max.y, max.z + 2: min.x, min.y, max.z + 3: max.x, min.y, max.z + 4: max.x, max.y, min.z + 5: min.x, max.y, min.z + 6: min.x, min.y, min.z + 7: max.x, min.y, min.z + */ + + const position = this.geometry.attributes.position; + const array = position.array; + + array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z; + array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z; + array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z; + array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z; + array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z; + array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z; + array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z; + array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z; + + position.needsUpdate = true; + + this.geometry.computeBoundingSphere(); + + + } + + setFromObject( object ) { + + this.object = object; + this.update(); + + return this; + + } + + copy( source ) { + + LineSegments.prototype.copy.call( this, source ); + + this.object = source.object; + + return this; + + } + +} + +class Box3Helper extends LineSegments { + + constructor( box, color = 0xffff00 ) { + + const indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] ); + + const positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ]; + + const geometry = new BufferGeometry(); + + geometry.setIndex( new BufferAttribute( indices, 1 ) ); + + geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) ); + + super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); + + this.box = box; + + this.type = 'Box3Helper'; + + this.geometry.computeBoundingSphere(); + + } + + updateMatrixWorld( force ) { + + const box = this.box; + + if ( box.isEmpty() ) return; + + box.getCenter( this.position ); + + box.getSize( this.scale ); + + this.scale.multiplyScalar( 0.5 ); + + super.updateMatrixWorld( force ); + + } + +} + +class PlaneHelper extends Line { + + constructor( plane, size = 1, hex = 0xffff00 ) { + + const color = hex; + + const positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ]; + + const geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) ); + geometry.computeBoundingSphere(); + + super( geometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); + + this.type = 'PlaneHelper'; + + this.plane = plane; + + this.size = size; + + const positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ]; + + const geometry2 = new BufferGeometry(); + geometry2.setAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) ); + geometry2.computeBoundingSphere(); + + this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false, toneMapped: false } ) ) ); + + } + + updateMatrixWorld( force ) { + + let scale = - this.plane.constant; + + if ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter + + this.scale.set( 0.5 * this.size, 0.5 * this.size, scale ); + + this.children[ 0 ].material.side = ( scale < 0 ) ? BackSide : FrontSide; // renderer flips side when determinant < 0; flipping not wanted here + + this.lookAt( this.plane.normal ); + + super.updateMatrixWorld( force ); + + } + +} + +const _axis = /*@__PURE__*/ new Vector3(); +let _lineGeometry, _coneGeometry; + +class ArrowHelper extends Object3D { + + constructor( dir, origin, length, color, headLength, headWidth ) { + + super(); + // dir is assumed to be normalized + + this.type = 'ArrowHelper'; + + if ( dir === undefined ) dir = new Vector3( 0, 0, 1 ); + if ( origin === undefined ) origin = new Vector3( 0, 0, 0 ); + if ( length === undefined ) length = 1; + if ( color === undefined ) color = 0xffff00; + if ( headLength === undefined ) headLength = 0.2 * length; + if ( headWidth === undefined ) headWidth = 0.2 * headLength; + + if ( _lineGeometry === undefined ) { + + _lineGeometry = new BufferGeometry(); + _lineGeometry.setAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) ); + + _coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 ); + _coneGeometry.translate( 0, - 0.5, 0 ); + + } + + this.position.copy( origin ); + + this.line = new Line( _lineGeometry, new LineBasicMaterial( { color: color, toneMapped: false } ) ); + this.line.matrixAutoUpdate = false; + this.add( this.line ); + + this.cone = new Mesh( _coneGeometry, new MeshBasicMaterial( { color: color, toneMapped: false } ) ); + this.cone.matrixAutoUpdate = false; + this.add( this.cone ); + + this.setDirection( dir ); + this.setLength( length, headLength, headWidth ); + + } + + setDirection( dir ) { + + // dir is assumed to be normalized + + if ( dir.y > 0.99999 ) { + + this.quaternion.set( 0, 0, 0, 1 ); + + } else if ( dir.y < - 0.99999 ) { + + this.quaternion.set( 1, 0, 0, 0 ); + + } else { + + _axis.set( dir.z, 0, - dir.x ).normalize(); + + const radians = Math.acos( dir.y ); + + this.quaternion.setFromAxisAngle( _axis, radians ); + + } + + } + + setLength( length, headLength, headWidth ) { + + if ( headLength === undefined ) headLength = 0.2 * length; + if ( headWidth === undefined ) headWidth = 0.2 * headLength; + + this.line.scale.set( 1, Math.max( 0.0001, length - headLength ), 1 ); // see #17458 + this.line.updateMatrix(); + + this.cone.scale.set( headWidth, headLength, headWidth ); + this.cone.position.y = length; + this.cone.updateMatrix(); + + } + + setColor( color ) { + + this.line.material.color.set( color ); + this.cone.material.color.set( color ); + + } + + copy( source ) { + + super.copy( source, false ); + + this.line.copy( source.line ); + this.cone.copy( source.cone ); + + return this; + + } + +} + +class AxesHelper extends LineSegments { + + constructor( size = 1 ) { + + const vertices = [ + 0, 0, 0, size, 0, 0, + 0, 0, 0, 0, size, 0, + 0, 0, 0, 0, 0, size + ]; + + const colors = [ + 1, 0, 0, 1, 0.6, 0, + 0, 1, 0, 0.6, 1, 0, + 0, 0, 1, 0, 0.6, 1 + ]; + + const geometry = new BufferGeometry(); + geometry.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) ); + geometry.setAttribute( 'color', new Float32BufferAttribute( colors, 3 ) ); + + const material = new LineBasicMaterial( { vertexColors: true, toneMapped: false } ); + + super( geometry, material ); + + this.type = 'AxesHelper'; + + } + +} + +const _floatView = new Float32Array( 1 ); +const _int32View = new Int32Array( _floatView.buffer ); + +const DataUtils = { + + // Converts float32 to float16 (stored as uint16 value). + + toHalfFloat: function ( val ) { + + // Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410 + + /* This method is faster than the OpenEXR implementation (very often + * used, eg. in Ogre), with the additional benefit of rounding, inspired + * by James Tursa?s half-precision code. */ + + _floatView[ 0 ] = val; + const x = _int32View[ 0 ]; + + let bits = ( x >> 16 ) & 0x8000; /* Get the sign */ + let m = ( x >> 12 ) & 0x07ff; /* Keep one extra bit for rounding */ + const e = ( x >> 23 ) & 0xff; /* Using int is faster here */ + + /* If zero, or denormal, or exponent underflows too much for a denormal + * half, return signed zero. */ + if ( e < 103 ) return bits; + + /* If NaN, return NaN. If Inf or exponent overflow, return Inf. */ + if ( e > 142 ) { + + bits |= 0x7c00; + /* If exponent was 0xff and one mantissa bit was set, it means NaN, + * not Inf, so make sure we set one mantissa bit too. */ + bits |= ( ( e == 255 ) ? 0 : 1 ) && ( x & 0x007fffff ); + return bits; + + } + + /* If exponent underflows but not too much, return a denormal */ + if ( e < 113 ) { + + m |= 0x0800; + /* Extra rounding may overflow and set mantissa to 0 and exponent + * to 1, which is OK. */ + bits |= ( m >> ( 114 - e ) ) + ( ( m >> ( 113 - e ) ) & 1 ); + return bits; + + } + + bits |= ( ( e - 112 ) << 10 ) | ( m >> 1 ); + /* Extra rounding. An overflow will set mantissa to 0 and increment + * the exponent, which is OK. */ + bits += m & 1; + return bits; + + } + +}; + +const LOD_MIN = 4; +const LOD_MAX = 8; +const SIZE_MAX = Math.pow( 2, LOD_MAX ); + +// The standard deviations (radians) associated with the extra mips. These are +// chosen to approximate a Trowbridge-Reitz distribution function times the +// geometric shadowing function. These sigma values squared must match the +// variance #defines in cube_uv_reflection_fragment.glsl.js. +const EXTRA_LOD_SIGMA = [ 0.125, 0.215, 0.35, 0.446, 0.526, 0.582 ]; + +const TOTAL_LODS = LOD_MAX - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length; + +// The maximum length of the blur for loop. Smaller sigmas will use fewer +// samples and exit early, but not recompile the shader. +const MAX_SAMPLES = 20; + +const ENCODINGS = { + [ LinearEncoding ]: 0, + [ sRGBEncoding ]: 1, + [ RGBEEncoding ]: 2, + [ RGBM7Encoding ]: 3, + [ RGBM16Encoding ]: 4, + [ RGBDEncoding ]: 5, + [ GammaEncoding ]: 6 +}; + +const _flatCamera = /*@__PURE__*/ new OrthographicCamera(); +const { _lodPlanes, _sizeLods, _sigmas } = /*@__PURE__*/ _createPlanes(); +const _clearColor = /*@__PURE__*/ new Color(); +let _oldTarget = null; + +// Golden Ratio +const PHI = ( 1 + Math.sqrt( 5 ) ) / 2; +const INV_PHI = 1 / PHI; + +// Vertices of a dodecahedron (except the opposites, which represent the +// same axis), used as axis directions evenly spread on a sphere. +const _axisDirections = [ + /*@__PURE__*/ new Vector3( 1, 1, 1 ), + /*@__PURE__*/ new Vector3( - 1, 1, 1 ), + /*@__PURE__*/ new Vector3( 1, 1, - 1 ), + /*@__PURE__*/ new Vector3( - 1, 1, - 1 ), + /*@__PURE__*/ new Vector3( 0, PHI, INV_PHI ), + /*@__PURE__*/ new Vector3( 0, PHI, - INV_PHI ), + /*@__PURE__*/ new Vector3( INV_PHI, 0, PHI ), + /*@__PURE__*/ new Vector3( - INV_PHI, 0, PHI ), + /*@__PURE__*/ new Vector3( PHI, INV_PHI, 0 ), + /*@__PURE__*/ new Vector3( - PHI, INV_PHI, 0 ) ]; + +/** + * This class generates a Prefiltered, Mipmapped Radiance Environment Map + * (PMREM) from a cubeMap environment texture. This allows different levels of + * blur to be quickly accessed based on material roughness. It is packed into a + * special CubeUV format that allows us to perform custom interpolation so that + * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap + * chain, it only goes down to the LOD_MIN level (above), and then creates extra + * even more filtered 'mips' at the same LOD_MIN resolution, associated with + * higher roughness levels. In this way we maintain resolution to smoothly + * interpolate diffuse lighting while limiting sampling computation. + */ + +class PMREMGenerator { + + constructor( renderer ) { + + this._renderer = renderer; + this._pingPongRenderTarget = null; + + this._blurMaterial = _getBlurShader( MAX_SAMPLES ); + this._equirectShader = null; + this._cubemapShader = null; + + this._compileMaterial( this._blurMaterial ); + + } + + /** + * Generates a PMREM from a supplied Scene, which can be faster than using an + * image if networking bandwidth is low. Optional sigma specifies a blur radius + * in radians to be applied to the scene before PMREM generation. Optional near + * and far planes ensure the scene is rendered in its entirety (the cubeCamera + * is placed at the origin). + */ + fromScene( scene, sigma = 0, near = 0.1, far = 100 ) { + + _oldTarget = this._renderer.getRenderTarget(); + const cubeUVRenderTarget = this._allocateTargets(); + + this._sceneToCubeUV( scene, near, far, cubeUVRenderTarget ); + if ( sigma > 0 ) { + + this._blur( cubeUVRenderTarget, 0, 0, sigma ); + + } + + this._applyPMREM( cubeUVRenderTarget ); + this._cleanup( cubeUVRenderTarget ); + + return cubeUVRenderTarget; + + } + + /** + * Generates a PMREM from an equirectangular texture, which can be either LDR + * (RGBFormat) or HDR (RGBEFormat). The ideal input image size is 1k (1024 x 512), + * as this matches best with the 256 x 256 cubemap output. + */ + fromEquirectangular( equirectangular ) { + + return this._fromTexture( equirectangular ); + + } + + /** + * Generates a PMREM from an cubemap texture, which can be either LDR + * (RGBFormat) or HDR (RGBEFormat). The ideal input cube size is 256 x 256, + * as this matches best with the 256 x 256 cubemap output. + */ + fromCubemap( cubemap ) { + + return this._fromTexture( cubemap ); + + } + + /** + * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during + * your texture's network fetch for increased concurrency. + */ + compileCubemapShader() { + + if ( this._cubemapShader === null ) { + + this._cubemapShader = _getCubemapShader(); + this._compileMaterial( this._cubemapShader ); + + } + + } + + /** + * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during + * your texture's network fetch for increased concurrency. + */ + compileEquirectangularShader() { + + if ( this._equirectShader === null ) { + + this._equirectShader = _getEquirectShader(); + this._compileMaterial( this._equirectShader ); + + } + + } + + /** + * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class, + * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on + * one of them will cause any others to also become unusable. + */ + dispose() { + + this._blurMaterial.dispose(); + + if ( this._cubemapShader !== null ) this._cubemapShader.dispose(); + if ( this._equirectShader !== null ) this._equirectShader.dispose(); + + for ( let i = 0; i < _lodPlanes.length; i ++ ) { + + _lodPlanes[ i ].dispose(); + + } + + } + + // private interface + + _cleanup( outputTarget ) { + + this._pingPongRenderTarget.dispose(); + this._renderer.setRenderTarget( _oldTarget ); + outputTarget.scissorTest = false; + _setViewport( outputTarget, 0, 0, outputTarget.width, outputTarget.height ); + + } + + _fromTexture( texture ) { + + _oldTarget = this._renderer.getRenderTarget(); + const cubeUVRenderTarget = this._allocateTargets( texture ); + this._textureToCubeUV( texture, cubeUVRenderTarget ); + this._applyPMREM( cubeUVRenderTarget ); + this._cleanup( cubeUVRenderTarget ); + + return cubeUVRenderTarget; + + } + + _allocateTargets( texture ) { // warning: null texture is valid + + const params = { + magFilter: NearestFilter, + minFilter: NearestFilter, + generateMipmaps: false, + type: UnsignedByteType, + format: RGBEFormat, + encoding: _isLDR( texture ) ? texture.encoding : RGBEEncoding, + depthBuffer: false + }; + + const cubeUVRenderTarget = _createRenderTarget( params ); + cubeUVRenderTarget.depthBuffer = texture ? false : true; + this._pingPongRenderTarget = _createRenderTarget( params ); + return cubeUVRenderTarget; + + } + + _compileMaterial( material ) { + + const tmpMesh = new Mesh( _lodPlanes[ 0 ], material ); + this._renderer.compile( tmpMesh, _flatCamera ); + + } + + _sceneToCubeUV( scene, near, far, cubeUVRenderTarget ) { + + const fov = 90; + const aspect = 1; + const cubeCamera = new PerspectiveCamera( fov, aspect, near, far ); + const upSign = [ 1, - 1, 1, 1, 1, 1 ]; + const forwardSign = [ 1, 1, 1, - 1, - 1, - 1 ]; + const renderer = this._renderer; + + const outputEncoding = renderer.outputEncoding; + const toneMapping = renderer.toneMapping; + renderer.getClearColor( _clearColor ); + const clearAlpha = renderer.getClearAlpha(); + + renderer.toneMapping = NoToneMapping; + renderer.outputEncoding = LinearEncoding; + + let background = scene.background; + if ( background && background.isColor ) { + + background.convertSRGBToLinear(); + // Convert linear to RGBE + const maxComponent = Math.max( background.r, background.g, background.b ); + const fExp = Math.min( Math.max( Math.ceil( Math.log2( maxComponent ) ), - 128.0 ), 127.0 ); + background = background.multiplyScalar( Math.pow( 2.0, - fExp ) ); + const alpha = ( fExp + 128.0 ) / 255.0; + renderer.setClearColor( background, alpha ); + scene.background = null; + + } + + for ( let i = 0; i < 6; i ++ ) { + + const col = i % 3; + if ( col == 0 ) { + + cubeCamera.up.set( 0, upSign[ i ], 0 ); + cubeCamera.lookAt( forwardSign[ i ], 0, 0 ); + + } else if ( col == 1 ) { + + cubeCamera.up.set( 0, 0, upSign[ i ] ); + cubeCamera.lookAt( 0, forwardSign[ i ], 0 ); + + } else { + + cubeCamera.up.set( 0, upSign[ i ], 0 ); + cubeCamera.lookAt( 0, 0, forwardSign[ i ] ); + + } + + _setViewport( cubeUVRenderTarget, + col * SIZE_MAX, i > 2 ? SIZE_MAX : 0, SIZE_MAX, SIZE_MAX ); + renderer.setRenderTarget( cubeUVRenderTarget ); + renderer.render( scene, cubeCamera ); + + } + + renderer.toneMapping = toneMapping; + renderer.outputEncoding = outputEncoding; + renderer.setClearColor( _clearColor, clearAlpha ); + + } + + _textureToCubeUV( texture, cubeUVRenderTarget ) { + + const renderer = this._renderer; + + if ( texture.isCubeTexture ) { + + if ( this._cubemapShader == null ) { + + this._cubemapShader = _getCubemapShader(); + + } + + } else { + + if ( this._equirectShader == null ) { + + this._equirectShader = _getEquirectShader(); + + } + + } + + const material = texture.isCubeTexture ? this._cubemapShader : this._equirectShader; + const mesh = new Mesh( _lodPlanes[ 0 ], material ); + + const uniforms = material.uniforms; + + uniforms[ 'envMap' ].value = texture; + + if ( ! texture.isCubeTexture ) { + + uniforms[ 'texelSize' ].value.set( 1.0 / texture.image.width, 1.0 / texture.image.height ); + + } + + uniforms[ 'inputEncoding' ].value = ENCODINGS[ texture.encoding ]; + uniforms[ 'outputEncoding' ].value = ENCODINGS[ cubeUVRenderTarget.texture.encoding ]; + + _setViewport( cubeUVRenderTarget, 0, 0, 3 * SIZE_MAX, 2 * SIZE_MAX ); + + renderer.setRenderTarget( cubeUVRenderTarget ); + renderer.render( mesh, _flatCamera ); + + } + + _applyPMREM( cubeUVRenderTarget ) { + + const renderer = this._renderer; + const autoClear = renderer.autoClear; + renderer.autoClear = false; + + for ( let i = 1; i < TOTAL_LODS; i ++ ) { + + const sigma = Math.sqrt( _sigmas[ i ] * _sigmas[ i ] - _sigmas[ i - 1 ] * _sigmas[ i - 1 ] ); + + const poleAxis = _axisDirections[ ( i - 1 ) % _axisDirections.length ]; + + this._blur( cubeUVRenderTarget, i - 1, i, sigma, poleAxis ); + + } + + renderer.autoClear = autoClear; + + } + + /** + * This is a two-pass Gaussian blur for a cubemap. Normally this is done + * vertically and horizontally, but this breaks down on a cube. Here we apply + * the blur latitudinally (around the poles), and then longitudinally (towards + * the poles) to approximate the orthogonally-separable blur. It is least + * accurate at the poles, but still does a decent job. + */ + _blur( cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis ) { + + const pingPongRenderTarget = this._pingPongRenderTarget; + + this._halfBlur( + cubeUVRenderTarget, + pingPongRenderTarget, + lodIn, + lodOut, + sigma, + 'latitudinal', + poleAxis ); + + this._halfBlur( + pingPongRenderTarget, + cubeUVRenderTarget, + lodOut, + lodOut, + sigma, + 'longitudinal', + poleAxis ); + + } + + _halfBlur( targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis ) { + + const renderer = this._renderer; + const blurMaterial = this._blurMaterial; + + if ( direction !== 'latitudinal' && direction !== 'longitudinal' ) { + + console.error( + 'blur direction must be either latitudinal or longitudinal!' ); + + } + + // Number of standard deviations at which to cut off the discrete approximation. + const STANDARD_DEVIATIONS = 3; + + const blurMesh = new Mesh( _lodPlanes[ lodOut ], blurMaterial ); + const blurUniforms = blurMaterial.uniforms; + + const pixels = _sizeLods[ lodIn ] - 1; + const radiansPerPixel = isFinite( sigmaRadians ) ? Math.PI / ( 2 * pixels ) : 2 * Math.PI / ( 2 * MAX_SAMPLES - 1 ); + const sigmaPixels = sigmaRadians / radiansPerPixel; + const samples = isFinite( sigmaRadians ) ? 1 + Math.floor( STANDARD_DEVIATIONS * sigmaPixels ) : MAX_SAMPLES; + + if ( samples > MAX_SAMPLES ) { + + console.warn( `sigmaRadians, ${ + sigmaRadians}, is too large and will clip, as it requested ${ + samples} samples when the maximum is set to ${MAX_SAMPLES}` ); + + } + + const weights = []; + let sum = 0; + + for ( let i = 0; i < MAX_SAMPLES; ++ i ) { + + const x = i / sigmaPixels; + const weight = Math.exp( - x * x / 2 ); + weights.push( weight ); + + if ( i == 0 ) { + + sum += weight; + + } else if ( i < samples ) { + + sum += 2 * weight; + + } + + } + + for ( let i = 0; i < weights.length; i ++ ) { + + weights[ i ] = weights[ i ] / sum; + + } + + blurUniforms[ 'envMap' ].value = targetIn.texture; + blurUniforms[ 'samples' ].value = samples; + blurUniforms[ 'weights' ].value = weights; + blurUniforms[ 'latitudinal' ].value = direction === 'latitudinal'; + + if ( poleAxis ) { + + blurUniforms[ 'poleAxis' ].value = poleAxis; + + } + + blurUniforms[ 'dTheta' ].value = radiansPerPixel; + blurUniforms[ 'mipInt' ].value = LOD_MAX - lodIn; + blurUniforms[ 'inputEncoding' ].value = ENCODINGS[ targetIn.texture.encoding ]; + blurUniforms[ 'outputEncoding' ].value = ENCODINGS[ targetIn.texture.encoding ]; + + const outputSize = _sizeLods[ lodOut ]; + const x = 3 * Math.max( 0, SIZE_MAX - 2 * outputSize ); + const y = ( lodOut === 0 ? 0 : 2 * SIZE_MAX ) + 2 * outputSize * ( lodOut > LOD_MAX - LOD_MIN ? lodOut - LOD_MAX + LOD_MIN : 0 ); + + _setViewport( targetOut, x, y, 3 * outputSize, 2 * outputSize ); + renderer.setRenderTarget( targetOut ); + renderer.render( blurMesh, _flatCamera ); + + } + +} + +function _isLDR( texture ) { + + if ( texture === undefined || texture.type !== UnsignedByteType ) return false; + + return texture.encoding === LinearEncoding || texture.encoding === sRGBEncoding || texture.encoding === GammaEncoding; + +} + +function _createPlanes() { + + const _lodPlanes = []; + const _sizeLods = []; + const _sigmas = []; + + let lod = LOD_MAX; + + for ( let i = 0; i < TOTAL_LODS; i ++ ) { + + const sizeLod = Math.pow( 2, lod ); + _sizeLods.push( sizeLod ); + let sigma = 1.0 / sizeLod; + + if ( i > LOD_MAX - LOD_MIN ) { + + sigma = EXTRA_LOD_SIGMA[ i - LOD_MAX + LOD_MIN - 1 ]; + + } else if ( i == 0 ) { + + sigma = 0; + + } + + _sigmas.push( sigma ); + + const texelSize = 1.0 / ( sizeLod - 1 ); + const min = - texelSize / 2; + const max = 1 + texelSize / 2; + const uv1 = [ min, min, max, min, max, max, min, min, max, max, min, max ]; + + const cubeFaces = 6; + const vertices = 6; + const positionSize = 3; + const uvSize = 2; + const faceIndexSize = 1; + + const position = new Float32Array( positionSize * vertices * cubeFaces ); + const uv = new Float32Array( uvSize * vertices * cubeFaces ); + const faceIndex = new Float32Array( faceIndexSize * vertices * cubeFaces ); + + for ( let face = 0; face < cubeFaces; face ++ ) { + + const x = ( face % 3 ) * 2 / 3 - 1; + const y = face > 2 ? 0 : - 1; + const coordinates = [ + x, y, 0, + x + 2 / 3, y, 0, + x + 2 / 3, y + 1, 0, + x, y, 0, + x + 2 / 3, y + 1, 0, + x, y + 1, 0 + ]; + position.set( coordinates, positionSize * vertices * face ); + uv.set( uv1, uvSize * vertices * face ); + const fill = [ face, face, face, face, face, face ]; + faceIndex.set( fill, faceIndexSize * vertices * face ); + + } + + const planes = new BufferGeometry(); + planes.setAttribute( 'position', new BufferAttribute( position, positionSize ) ); + planes.setAttribute( 'uv', new BufferAttribute( uv, uvSize ) ); + planes.setAttribute( 'faceIndex', new BufferAttribute( faceIndex, faceIndexSize ) ); + _lodPlanes.push( planes ); + + if ( lod > LOD_MIN ) { + + lod --; + + } + + } + + return { _lodPlanes, _sizeLods, _sigmas }; + +} + +function _createRenderTarget( params ) { + + const cubeUVRenderTarget = new WebGLRenderTarget( 3 * SIZE_MAX, 3 * SIZE_MAX, params ); + cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping; + cubeUVRenderTarget.texture.name = 'PMREM.cubeUv'; + cubeUVRenderTarget.scissorTest = true; + return cubeUVRenderTarget; + +} + +function _setViewport( target, x, y, width, height ) { + + target.viewport.set( x, y, width, height ); + target.scissor.set( x, y, width, height ); + +} + +function _getBlurShader( maxSamples ) { + + const weights = new Float32Array( maxSamples ); + const poleAxis = new Vector3( 0, 1, 0 ); + const shaderMaterial = new RawShaderMaterial( { + + name: 'SphericalGaussianBlur', + + defines: { 'n': maxSamples }, + + uniforms: { + 'envMap': { value: null }, + 'samples': { value: 1 }, + 'weights': { value: weights }, + 'latitudinal': { value: false }, + 'dTheta': { value: 0 }, + 'mipInt': { value: 0 }, + 'poleAxis': { value: poleAxis }, + 'inputEncoding': { value: ENCODINGS[ LinearEncoding ] }, + 'outputEncoding': { value: ENCODINGS[ LinearEncoding ] } + }, + + vertexShader: _getCommonVertexShader(), + + fragmentShader: /* glsl */` + + precision mediump float; + precision mediump int; + + varying vec3 vOutputDirection; + + uniform sampler2D envMap; + uniform int samples; + uniform float weights[ n ]; + uniform bool latitudinal; + uniform float dTheta; + uniform float mipInt; + uniform vec3 poleAxis; + + ${ _getEncodings() } + + #define ENVMAP_TYPE_CUBE_UV + #include + + vec3 getSample( float theta, vec3 axis ) { + + float cosTheta = cos( theta ); + // Rodrigues' axis-angle rotation + vec3 sampleDirection = vOutputDirection * cosTheta + + cross( axis, vOutputDirection ) * sin( theta ) + + axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta ); + + return bilinearCubeUV( envMap, sampleDirection, mipInt ); + + } + + void main() { + + vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection ); + + if ( all( equal( axis, vec3( 0.0 ) ) ) ) { + + axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x ); + + } + + axis = normalize( axis ); + + gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 ); + gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis ); + + for ( int i = 1; i < n; i++ ) { + + if ( i >= samples ) { + + break; + + } + + float theta = dTheta * float( i ); + gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis ); + gl_FragColor.rgb += weights[ i ] * getSample( theta, axis ); + + } + + gl_FragColor = linearToOutputTexel( gl_FragColor ); + + } + `, + + blending: NoBlending, + depthTest: false, + depthWrite: false + + } ); + + return shaderMaterial; + +} + +function _getEquirectShader() { + + const texelSize = new Vector2( 1, 1 ); + const shaderMaterial = new RawShaderMaterial( { + + name: 'EquirectangularToCubeUV', + + uniforms: { + 'envMap': { value: null }, + 'texelSize': { value: texelSize }, + 'inputEncoding': { value: ENCODINGS[ LinearEncoding ] }, + 'outputEncoding': { value: ENCODINGS[ LinearEncoding ] } + }, + + vertexShader: _getCommonVertexShader(), + + fragmentShader: /* glsl */` + + precision mediump float; + precision mediump int; + + varying vec3 vOutputDirection; + + uniform sampler2D envMap; + uniform vec2 texelSize; + + ${ _getEncodings() } + + #include + + void main() { + + gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 ); + + vec3 outputDirection = normalize( vOutputDirection ); + vec2 uv = equirectUv( outputDirection ); + + vec2 f = fract( uv / texelSize - 0.5 ); + uv -= f * texelSize; + vec3 tl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb; + uv.x += texelSize.x; + vec3 tr = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb; + uv.y += texelSize.y; + vec3 br = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb; + uv.x -= texelSize.x; + vec3 bl = envMapTexelToLinear( texture2D ( envMap, uv ) ).rgb; + + vec3 tm = mix( tl, tr, f.x ); + vec3 bm = mix( bl, br, f.x ); + gl_FragColor.rgb = mix( tm, bm, f.y ); + + gl_FragColor = linearToOutputTexel( gl_FragColor ); + + } + `, + + blending: NoBlending, + depthTest: false, + depthWrite: false + + } ); + + return shaderMaterial; + +} + +function _getCubemapShader() { + + const shaderMaterial = new RawShaderMaterial( { + + name: 'CubemapToCubeUV', + + uniforms: { + 'envMap': { value: null }, + 'inputEncoding': { value: ENCODINGS[ LinearEncoding ] }, + 'outputEncoding': { value: ENCODINGS[ LinearEncoding ] } + }, + + vertexShader: _getCommonVertexShader(), + + fragmentShader: /* glsl */` + + precision mediump float; + precision mediump int; + + varying vec3 vOutputDirection; + + uniform samplerCube envMap; + + ${ _getEncodings() } + + void main() { + + gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 ); + gl_FragColor.rgb = envMapTexelToLinear( textureCube( envMap, vec3( - vOutputDirection.x, vOutputDirection.yz ) ) ).rgb; + gl_FragColor = linearToOutputTexel( gl_FragColor ); + + } + `, + + blending: NoBlending, + depthTest: false, + depthWrite: false + + } ); + + return shaderMaterial; + +} + +function _getCommonVertexShader() { + + return /* glsl */` + + precision mediump float; + precision mediump int; + + attribute vec3 position; + attribute vec2 uv; + attribute float faceIndex; + + varying vec3 vOutputDirection; + + // RH coordinate system; PMREM face-indexing convention + vec3 getDirection( vec2 uv, float face ) { + + uv = 2.0 * uv - 1.0; + + vec3 direction = vec3( uv, 1.0 ); + + if ( face == 0.0 ) { + + direction = direction.zyx; // ( 1, v, u ) pos x + + } else if ( face == 1.0 ) { + + direction = direction.xzy; + direction.xz *= -1.0; // ( -u, 1, -v ) pos y + + } else if ( face == 2.0 ) { + + direction.x *= -1.0; // ( -u, v, 1 ) pos z + + } else if ( face == 3.0 ) { + + direction = direction.zyx; + direction.xz *= -1.0; // ( -1, v, -u ) neg x + + } else if ( face == 4.0 ) { + + direction = direction.xzy; + direction.xy *= -1.0; // ( -u, -1, v ) neg y + + } else if ( face == 5.0 ) { + + direction.z *= -1.0; // ( u, v, -1 ) neg z + + } + + return direction; + + } + + void main() { + + vOutputDirection = getDirection( uv, faceIndex ); + gl_Position = vec4( position, 1.0 ); + + } + `; + +} + +function _getEncodings() { + + return /* glsl */` + + uniform int inputEncoding; + uniform int outputEncoding; + + #include + + vec4 inputTexelToLinear( vec4 value ) { + + if ( inputEncoding == 0 ) { + + return value; + + } else if ( inputEncoding == 1 ) { + + return sRGBToLinear( value ); + + } else if ( inputEncoding == 2 ) { + + return RGBEToLinear( value ); + + } else if ( inputEncoding == 3 ) { + + return RGBMToLinear( value, 7.0 ); + + } else if ( inputEncoding == 4 ) { + + return RGBMToLinear( value, 16.0 ); + + } else if ( inputEncoding == 5 ) { + + return RGBDToLinear( value, 256.0 ); + + } else { + + return GammaToLinear( value, 2.2 ); + + } + + } + + vec4 linearToOutputTexel( vec4 value ) { + + if ( outputEncoding == 0 ) { + + return value; + + } else if ( outputEncoding == 1 ) { + + return LinearTosRGB( value ); + + } else if ( outputEncoding == 2 ) { + + return LinearToRGBE( value ); + + } else if ( outputEncoding == 3 ) { + + return LinearToRGBM( value, 7.0 ); + + } else if ( outputEncoding == 4 ) { + + return LinearToRGBM( value, 16.0 ); + + } else if ( outputEncoding == 5 ) { + + return LinearToRGBD( value, 256.0 ); + + } else { + + return LinearToGamma( value, 2.2 ); + + } + + } + + vec4 envMapTexelToLinear( vec4 color ) { + + return inputTexelToLinear( color ); + + } + `; + +} + +function Face4( a, b, c, d, normal, color, materialIndex ) { + + console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' ); + return new Face3( a, b, c, normal, color, materialIndex ); + +} + +const LineStrip = 0; +const LinePieces = 1; +const NoColors = 0; +const FaceColors = 1; +const VertexColors = 2; + +function MeshFaceMaterial( materials ) { + + console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' ); + return materials; + +} + +function MultiMaterial( materials = [] ) { + + console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' ); + materials.isMultiMaterial = true; + materials.materials = materials; + materials.clone = function () { + + return materials.slice(); + + }; + + return materials; + +} + +function PointCloud( geometry, material ) { + + console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' ); + return new Points( geometry, material ); + +} + +function Particle( material ) { + + console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' ); + return new Sprite( material ); + +} + +function ParticleSystem( geometry, material ) { + + console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' ); + return new Points( geometry, material ); + +} + +function PointCloudMaterial( parameters ) { + + console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + +} + +function ParticleBasicMaterial( parameters ) { + + console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + +} + +function ParticleSystemMaterial( parameters ) { + + console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + +} + +function Vertex( x, y, z ) { + + console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' ); + return new Vector3( x, y, z ); + +} + +// + +function DynamicBufferAttribute( array, itemSize ) { + + console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setUsage( THREE.DynamicDrawUsage ) instead.' ); + return new BufferAttribute( array, itemSize ).setUsage( DynamicDrawUsage ); + +} + +function Int8Attribute( array, itemSize ) { + + console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' ); + return new Int8BufferAttribute( array, itemSize ); + +} + +function Uint8Attribute( array, itemSize ) { + + console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' ); + return new Uint8BufferAttribute( array, itemSize ); + +} + +function Uint8ClampedAttribute( array, itemSize ) { + + console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' ); + return new Uint8ClampedBufferAttribute( array, itemSize ); + +} + +function Int16Attribute( array, itemSize ) { + + console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' ); + return new Int16BufferAttribute( array, itemSize ); + +} + +function Uint16Attribute( array, itemSize ) { + + console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' ); + return new Uint16BufferAttribute( array, itemSize ); + +} + +function Int32Attribute( array, itemSize ) { + + console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' ); + return new Int32BufferAttribute( array, itemSize ); + +} + +function Uint32Attribute( array, itemSize ) { + + console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' ); + return new Uint32BufferAttribute( array, itemSize ); + +} + +function Float32Attribute( array, itemSize ) { + + console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' ); + return new Float32BufferAttribute( array, itemSize ); + +} + +function Float64Attribute( array, itemSize ) { + + console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' ); + return new Float64BufferAttribute( array, itemSize ); + +} + +// + +Curve.create = function ( construct, getPoint ) { + + console.log( 'THREE.Curve.create() has been deprecated' ); + + construct.prototype = Object.create( Curve.prototype ); + construct.prototype.constructor = construct; + construct.prototype.getPoint = getPoint; + + return construct; + +}; + +// + +Object.assign( CurvePath.prototype, { + + createPointsGeometry: function ( divisions ) { + + console.warn( 'THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' ); + + // generate geometry from path points (for Line or Points objects) + + const pts = this.getPoints( divisions ); + return this.createGeometry( pts ); + + }, + + createSpacedPointsGeometry: function ( divisions ) { + + console.warn( 'THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' ); + + // generate geometry from equidistant sampling along the path + + const pts = this.getSpacedPoints( divisions ); + return this.createGeometry( pts ); + + }, + + createGeometry: function ( points ) { + + console.warn( 'THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' ); + + const geometry = new Geometry(); + + for ( let i = 0, l = points.length; i < l; i ++ ) { + + const point = points[ i ]; + geometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) ); + + } + + return geometry; + + } + +} ); + +// + +Object.assign( Path.prototype, { + + fromPoints: function ( points ) { + + console.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' ); + return this.setFromPoints( points ); + + } + +} ); + +// + +function ClosedSplineCurve3( points ) { + + console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' ); + + CatmullRomCurve3.call( this, points ); + this.type = 'catmullrom'; + this.closed = true; + +} + +ClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype ); + +// + +function SplineCurve3( points ) { + + console.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' ); + + CatmullRomCurve3.call( this, points ); + this.type = 'catmullrom'; + +} + +SplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype ); + +// + +function Spline( points ) { + + console.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' ); + + CatmullRomCurve3.call( this, points ); + this.type = 'catmullrom'; + +} + +Spline.prototype = Object.create( CatmullRomCurve3.prototype ); + +Object.assign( Spline.prototype, { + + initFromArray: function ( /* a */ ) { + + console.error( 'THREE.Spline: .initFromArray() has been removed.' ); + + }, + getControlPointsArray: function ( /* optionalTarget */ ) { + + console.error( 'THREE.Spline: .getControlPointsArray() has been removed.' ); + + }, + reparametrizeByArcLength: function ( /* samplingCoef */ ) { + + console.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' ); + + } + +} ); + +// + +function AxisHelper( size ) { + + console.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' ); + return new AxesHelper( size ); + +} + +function BoundingBoxHelper( object, color ) { + + console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' ); + return new BoxHelper( object, color ); + +} + +function EdgesHelper( object, hex ) { + + console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' ); + return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) ); + +} + +GridHelper.prototype.setColors = function () { + + console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' ); + +}; + +SkeletonHelper.prototype.update = function () { + + console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' ); + +}; + +function WireframeHelper( object, hex ) { + + console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' ); + return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) ); + +} + +// + +Object.assign( Loader.prototype, { + + extractUrlBase: function ( url ) { + + console.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' ); + return LoaderUtils.extractUrlBase( url ); + + } + +} ); + +Loader.Handlers = { + + add: function ( /* regex, loader */ ) { + + console.error( 'THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.' ); + + }, + + get: function ( /* file */ ) { + + console.error( 'THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.' ); + + } + +}; + +function XHRLoader( manager ) { + + console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' ); + return new FileLoader( manager ); + +} + +function BinaryTextureLoader( manager ) { + + console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' ); + return new DataTextureLoader( manager ); + +} + +// + +Object.assign( Box2.prototype, { + + center: function ( optionalTarget ) { + + console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + + }, + empty: function () { + + console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' ); + return this.isEmpty(); + + }, + isIntersectionBox: function ( box ) { + + console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + + }, + size: function ( optionalTarget ) { + + console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' ); + return this.getSize( optionalTarget ); + + } +} ); + +Object.assign( Box3.prototype, { + + center: function ( optionalTarget ) { + + console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + + }, + empty: function () { + + console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' ); + return this.isEmpty(); + + }, + isIntersectionBox: function ( box ) { + + console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + + }, + isIntersectionSphere: function ( sphere ) { + + console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' ); + return this.intersectsSphere( sphere ); + + }, + size: function ( optionalTarget ) { + + console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' ); + return this.getSize( optionalTarget ); + + } +} ); + +Object.assign( Sphere.prototype, { + + empty: function () { + + console.warn( 'THREE.Sphere: .empty() has been renamed to .isEmpty().' ); + return this.isEmpty(); + + }, + +} ); + +Frustum.prototype.setFromMatrix = function ( m ) { + + console.warn( 'THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix().' ); + return this.setFromProjectionMatrix( m ); + +}; + +Line3.prototype.center = function ( optionalTarget ) { + + console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + +}; + +Object.assign( MathUtils, { + + random16: function () { + + console.warn( 'THREE.Math: .random16() has been deprecated. Use Math.random() instead.' ); + return Math.random(); + + }, + + nearestPowerOfTwo: function ( value ) { + + console.warn( 'THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().' ); + return MathUtils.floorPowerOfTwo( value ); + + }, + + nextPowerOfTwo: function ( value ) { + + console.warn( 'THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().' ); + return MathUtils.ceilPowerOfTwo( value ); + + } + +} ); + +Object.assign( Matrix3.prototype, { + + flattenToArrayOffset: function ( array, offset ) { + + console.warn( 'THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.' ); + return this.toArray( array, offset ); + + }, + multiplyVector3: function ( vector ) { + + console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' ); + return vector.applyMatrix3( this ); + + }, + multiplyVector3Array: function ( /* a */ ) { + + console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' ); + + }, + applyToBufferAttribute: function ( attribute ) { + + console.warn( 'THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead.' ); + return attribute.applyMatrix3( this ); + + }, + applyToVector3Array: function ( /* array, offset, length */ ) { + + console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' ); + + }, + getInverse: function ( matrix ) { + + console.warn( 'THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.' ); + return this.copy( matrix ).invert(); + + } + +} ); + +Object.assign( Matrix4.prototype, { + + extractPosition: function ( m ) { + + console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' ); + return this.copyPosition( m ); + + }, + flattenToArrayOffset: function ( array, offset ) { + + console.warn( 'THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.' ); + return this.toArray( array, offset ); + + }, + getPosition: function () { + + console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' ); + return new Vector3().setFromMatrixColumn( this, 3 ); + + }, + setRotationFromQuaternion: function ( q ) { + + console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' ); + return this.makeRotationFromQuaternion( q ); + + }, + multiplyToArray: function () { + + console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' ); + + }, + multiplyVector3: function ( vector ) { + + console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' ); + return vector.applyMatrix4( this ); + + }, + multiplyVector4: function ( vector ) { + + console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' ); + return vector.applyMatrix4( this ); + + }, + multiplyVector3Array: function ( /* a */ ) { + + console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' ); + + }, + rotateAxis: function ( v ) { + + console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' ); + v.transformDirection( this ); + + }, + crossVector: function ( vector ) { + + console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' ); + return vector.applyMatrix4( this ); + + }, + translate: function () { + + console.error( 'THREE.Matrix4: .translate() has been removed.' ); + + }, + rotateX: function () { + + console.error( 'THREE.Matrix4: .rotateX() has been removed.' ); + + }, + rotateY: function () { + + console.error( 'THREE.Matrix4: .rotateY() has been removed.' ); + + }, + rotateZ: function () { + + console.error( 'THREE.Matrix4: .rotateZ() has been removed.' ); + + }, + rotateByAxis: function () { + + console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' ); + + }, + applyToBufferAttribute: function ( attribute ) { + + console.warn( 'THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead.' ); + return attribute.applyMatrix4( this ); + + }, + applyToVector3Array: function ( /* array, offset, length */ ) { + + console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' ); + + }, + makeFrustum: function ( left, right, bottom, top, near, far ) { + + console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' ); + return this.makePerspective( left, right, top, bottom, near, far ); + + }, + getInverse: function ( matrix ) { + + console.warn( 'THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.' ); + return this.copy( matrix ).invert(); + + } + +} ); + +Plane.prototype.isIntersectionLine = function ( line ) { + + console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' ); + return this.intersectsLine( line ); + +}; + +Object.assign( Quaternion.prototype, { + + multiplyVector3: function ( vector ) { + + console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' ); + return vector.applyQuaternion( this ); + + }, + inverse: function ( ) { + + console.warn( 'THREE.Quaternion: .inverse() has been renamed to invert().' ); + return this.invert(); + + } + +} ); + +Object.assign( Ray.prototype, { + + isIntersectionBox: function ( box ) { + + console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + + }, + isIntersectionPlane: function ( plane ) { + + console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' ); + return this.intersectsPlane( plane ); + + }, + isIntersectionSphere: function ( sphere ) { + + console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' ); + return this.intersectsSphere( sphere ); + + } + +} ); + +Object.assign( Triangle.prototype, { + + area: function () { + + console.warn( 'THREE.Triangle: .area() has been renamed to .getArea().' ); + return this.getArea(); + + }, + barycoordFromPoint: function ( point, target ) { + + console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' ); + return this.getBarycoord( point, target ); + + }, + midpoint: function ( target ) { + + console.warn( 'THREE.Triangle: .midpoint() has been renamed to .getMidpoint().' ); + return this.getMidpoint( target ); + + }, + normal: function ( target ) { + + console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' ); + return this.getNormal( target ); + + }, + plane: function ( target ) { + + console.warn( 'THREE.Triangle: .plane() has been renamed to .getPlane().' ); + return this.getPlane( target ); + + } + +} ); + +Object.assign( Triangle, { + + barycoordFromPoint: function ( point, a, b, c, target ) { + + console.warn( 'THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().' ); + return Triangle.getBarycoord( point, a, b, c, target ); + + }, + normal: function ( a, b, c, target ) { + + console.warn( 'THREE.Triangle: .normal() has been renamed to .getNormal().' ); + return Triangle.getNormal( a, b, c, target ); + + } + +} ); + +Object.assign( Shape.prototype, { + + extractAllPoints: function ( divisions ) { + + console.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' ); + return this.extractPoints( divisions ); + + }, + extrude: function ( options ) { + + console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' ); + return new ExtrudeGeometry( this, options ); + + }, + makeGeometry: function ( options ) { + + console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' ); + return new ShapeGeometry( this, options ); + + } + +} ); + +Object.assign( Vector2.prototype, { + + fromAttribute: function ( attribute, index, offset ) { + + console.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' ); + return this.fromBufferAttribute( attribute, index, offset ); + + }, + distanceToManhattan: function ( v ) { + + console.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' ); + return this.manhattanDistanceTo( v ); + + }, + lengthManhattan: function () { + + console.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' ); + return this.manhattanLength(); + + } + +} ); + +Object.assign( Vector3.prototype, { + + setEulerFromRotationMatrix: function () { + + console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' ); + + }, + setEulerFromQuaternion: function () { + + console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' ); + + }, + getPositionFromMatrix: function ( m ) { + + console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' ); + return this.setFromMatrixPosition( m ); + + }, + getScaleFromMatrix: function ( m ) { + + console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' ); + return this.setFromMatrixScale( m ); + + }, + getColumnFromMatrix: function ( index, matrix ) { + + console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' ); + return this.setFromMatrixColumn( matrix, index ); + + }, + applyProjection: function ( m ) { + + console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' ); + return this.applyMatrix4( m ); + + }, + fromAttribute: function ( attribute, index, offset ) { + + console.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' ); + return this.fromBufferAttribute( attribute, index, offset ); + + }, + distanceToManhattan: function ( v ) { + + console.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' ); + return this.manhattanDistanceTo( v ); + + }, + lengthManhattan: function () { + + console.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' ); + return this.manhattanLength(); + + } + +} ); + +Object.assign( Vector4.prototype, { + + fromAttribute: function ( attribute, index, offset ) { + + console.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' ); + return this.fromBufferAttribute( attribute, index, offset ); + + }, + lengthManhattan: function () { + + console.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' ); + return this.manhattanLength(); + + } + +} ); + +// + +Object.assign( Geometry.prototype, { + + computeTangents: function () { + + console.error( 'THREE.Geometry: .computeTangents() has been removed.' ); + + }, + computeLineDistances: function () { + + console.error( 'THREE.Geometry: .computeLineDistances() has been removed. Use THREE.Line.computeLineDistances() instead.' ); + + }, + applyMatrix: function ( matrix ) { + + console.warn( 'THREE.Geometry: .applyMatrix() has been renamed to .applyMatrix4().' ); + return this.applyMatrix4( matrix ); + + } + +} ); + +Object.assign( Object3D.prototype, { + + getChildByName: function ( name ) { + + console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' ); + return this.getObjectByName( name ); + + }, + renderDepth: function () { + + console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' ); + + }, + translate: function ( distance, axis ) { + + console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' ); + return this.translateOnAxis( axis, distance ); + + }, + getWorldRotation: function () { + + console.error( 'THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.' ); + + }, + applyMatrix: function ( matrix ) { + + console.warn( 'THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4().' ); + return this.applyMatrix4( matrix ); + + } + +} ); + +Object.defineProperties( Object3D.prototype, { + + eulerOrder: { + get: function () { + + console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' ); + return this.rotation.order; + + }, + set: function ( value ) { + + console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' ); + this.rotation.order = value; + + } + }, + useQuaternion: { + get: function () { + + console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' ); + + }, + set: function () { + + console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' ); + + } + } + +} ); + +Object.assign( Mesh.prototype, { + + setDrawMode: function () { + + console.error( 'THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.' ); + + }, + +} ); + +Object.defineProperties( Mesh.prototype, { + + drawMode: { + get: function () { + + console.error( 'THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode.' ); + return TrianglesDrawMode; + + }, + set: function () { + + console.error( 'THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.' ); + + } + } + +} ); + +Object.defineProperties( LOD.prototype, { + + objects: { + get: function () { + + console.warn( 'THREE.LOD: .objects has been renamed to .levels.' ); + return this.levels; + + } + } + +} ); + +Object.defineProperty( Skeleton.prototype, 'useVertexTexture', { + + get: function () { + + console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' ); + + }, + set: function () { + + console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' ); + + } + +} ); + +SkinnedMesh.prototype.initBones = function () { + + console.error( 'THREE.SkinnedMesh: initBones() has been removed.' ); + +}; + +Object.defineProperty( Curve.prototype, '__arcLengthDivisions', { + + get: function () { + + console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' ); + return this.arcLengthDivisions; + + }, + set: function ( value ) { + + console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' ); + this.arcLengthDivisions = value; + + } + +} ); + +// + +PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) { + + console.warn( 'THREE.PerspectiveCamera.setLens is deprecated. ' + + 'Use .setFocalLength and .filmGauge for a photographic setup.' ); + + if ( filmGauge !== undefined ) this.filmGauge = filmGauge; + this.setFocalLength( focalLength ); + +}; + +// + +Object.defineProperties( Light.prototype, { + onlyShadow: { + set: function () { + + console.warn( 'THREE.Light: .onlyShadow has been removed.' ); + + } + }, + shadowCameraFov: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' ); + this.shadow.camera.fov = value; + + } + }, + shadowCameraLeft: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' ); + this.shadow.camera.left = value; + + } + }, + shadowCameraRight: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' ); + this.shadow.camera.right = value; + + } + }, + shadowCameraTop: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' ); + this.shadow.camera.top = value; + + } + }, + shadowCameraBottom: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' ); + this.shadow.camera.bottom = value; + + } + }, + shadowCameraNear: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' ); + this.shadow.camera.near = value; + + } + }, + shadowCameraFar: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' ); + this.shadow.camera.far = value; + + } + }, + shadowCameraVisible: { + set: function () { + + console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' ); + + } + }, + shadowBias: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' ); + this.shadow.bias = value; + + } + }, + shadowDarkness: { + set: function () { + + console.warn( 'THREE.Light: .shadowDarkness has been removed.' ); + + } + }, + shadowMapWidth: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' ); + this.shadow.mapSize.width = value; + + } + }, + shadowMapHeight: { + set: function ( value ) { + + console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' ); + this.shadow.mapSize.height = value; + + } + } +} ); + +// + +Object.defineProperties( BufferAttribute.prototype, { + + length: { + get: function () { + + console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' ); + return this.array.length; + + } + }, + dynamic: { + get: function () { + + console.warn( 'THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.' ); + return this.usage === DynamicDrawUsage; + + }, + set: function ( /* value */ ) { + + console.warn( 'THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.' ); + this.setUsage( DynamicDrawUsage ); + + } + } + +} ); + +Object.assign( BufferAttribute.prototype, { + setDynamic: function ( value ) { + + console.warn( 'THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead.' ); + this.setUsage( value === true ? DynamicDrawUsage : StaticDrawUsage ); + return this; + + }, + copyIndicesArray: function ( /* indices */ ) { + + console.error( 'THREE.BufferAttribute: .copyIndicesArray() has been removed.' ); + + }, + setArray: function ( /* array */ ) { + + console.error( 'THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers' ); + + } +} ); + +Object.assign( BufferGeometry.prototype, { + + addIndex: function ( index ) { + + console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' ); + this.setIndex( index ); + + }, + addAttribute: function ( name, attribute ) { + + console.warn( 'THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute().' ); + + if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) { + + console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' ); + + return this.setAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) ); + + } + + if ( name === 'index' ) { + + console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' ); + this.setIndex( attribute ); + + return this; + + } + + return this.setAttribute( name, attribute ); + + }, + addDrawCall: function ( start, count, indexOffset ) { + + if ( indexOffset !== undefined ) { + + console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' ); + + } + + console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' ); + this.addGroup( start, count ); + + }, + clearDrawCalls: function () { + + console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' ); + this.clearGroups(); + + }, + computeTangents: function () { + + console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' ); + + }, + computeOffsets: function () { + + console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' ); + + }, + removeAttribute: function ( name ) { + + console.warn( 'THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute().' ); + + return this.deleteAttribute( name ); + + }, + applyMatrix: function ( matrix ) { + + console.warn( 'THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4().' ); + return this.applyMatrix4( matrix ); + + } + +} ); + +Object.defineProperties( BufferGeometry.prototype, { + + drawcalls: { + get: function () { + + console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' ); + return this.groups; + + } + }, + offsets: { + get: function () { + + console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' ); + return this.groups; + + } + } + +} ); + +Object.defineProperties( InstancedBufferGeometry.prototype, { + + maxInstancedCount: { + get: function () { + + console.warn( 'THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount.' ); + return this.instanceCount; + + }, + set: function ( value ) { + + console.warn( 'THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount.' ); + this.instanceCount = value; + + } + } + +} ); + +Object.defineProperties( Raycaster.prototype, { + + linePrecision: { + get: function () { + + console.warn( 'THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead.' ); + return this.params.Line.threshold; + + }, + set: function ( value ) { + + console.warn( 'THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead.' ); + this.params.Line.threshold = value; + + } + } + +} ); + +Object.defineProperties( InterleavedBuffer.prototype, { + + dynamic: { + get: function () { + + console.warn( 'THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead.' ); + return this.usage === DynamicDrawUsage; + + }, + set: function ( value ) { + + console.warn( 'THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead.' ); + this.setUsage( value ); + + } + } + +} ); + +Object.assign( InterleavedBuffer.prototype, { + setDynamic: function ( value ) { + + console.warn( 'THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead.' ); + this.setUsage( value === true ? DynamicDrawUsage : StaticDrawUsage ); + return this; + + }, + setArray: function ( /* array */ ) { + + console.error( 'THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers' ); + + } +} ); + +// + +Object.assign( ExtrudeBufferGeometry.prototype, { + + getArrays: function () { + + console.error( 'THREE.ExtrudeBufferGeometry: .getArrays() has been removed.' ); + + }, + + addShapeList: function () { + + console.error( 'THREE.ExtrudeBufferGeometry: .addShapeList() has been removed.' ); + + }, + + addShape: function () { + + console.error( 'THREE.ExtrudeBufferGeometry: .addShape() has been removed.' ); + + } + +} ); + +// + +Object.assign( Scene.prototype, { + + dispose: function () { + + console.error( 'THREE.Scene: .dispose() has been removed.' ); + + } + +} ); + +// + +Object.defineProperties( Uniform.prototype, { + + dynamic: { + set: function () { + + console.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' ); + + } + }, + onUpdate: { + value: function () { + + console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' ); + return this; + + } + } + +} ); + +// + +Object.defineProperties( Material.prototype, { + + wrapAround: { + get: function () { + + console.warn( 'THREE.Material: .wrapAround has been removed.' ); + + }, + set: function () { + + console.warn( 'THREE.Material: .wrapAround has been removed.' ); + + } + }, + + overdraw: { + get: function () { + + console.warn( 'THREE.Material: .overdraw has been removed.' ); + + }, + set: function () { + + console.warn( 'THREE.Material: .overdraw has been removed.' ); + + } + }, + + wrapRGB: { + get: function () { + + console.warn( 'THREE.Material: .wrapRGB has been removed.' ); + return new Color(); + + } + }, + + shading: { + get: function () { + + console.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' ); + + }, + set: function ( value ) { + + console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' ); + this.flatShading = ( value === FlatShading ); + + } + }, + + stencilMask: { + get: function () { + + console.warn( 'THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.' ); + return this.stencilFuncMask; + + }, + set: function ( value ) { + + console.warn( 'THREE.' + this.type + ': .stencilMask has been removed. Use .stencilFuncMask instead.' ); + this.stencilFuncMask = value; + + } + } + +} ); + +Object.defineProperties( MeshPhongMaterial.prototype, { + + metal: { + get: function () { + + console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' ); + return false; + + }, + set: function () { + + console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' ); + + } + } + +} ); + +Object.defineProperties( MeshPhysicalMaterial.prototype, { + + transparency: { + get: function () { + + console.warn( 'THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission.' ); + return this.transmission; + + }, + set: function ( value ) { + + console.warn( 'THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission.' ); + this.transmission = value; + + } + } + +} ); + +Object.defineProperties( ShaderMaterial.prototype, { + + derivatives: { + get: function () { + + console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' ); + return this.extensions.derivatives; + + }, + set: function ( value ) { + + console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' ); + this.extensions.derivatives = value; + + } + } + +} ); + +// + +Object.assign( WebGLRenderer.prototype, { + + clearTarget: function ( renderTarget, color, depth, stencil ) { + + console.warn( 'THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.' ); + this.setRenderTarget( renderTarget ); + this.clear( color, depth, stencil ); + + }, + animate: function ( callback ) { + + console.warn( 'THREE.WebGLRenderer: .animate() is now .setAnimationLoop().' ); + this.setAnimationLoop( callback ); + + }, + getCurrentRenderTarget: function () { + + console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' ); + return this.getRenderTarget(); + + }, + getMaxAnisotropy: function () { + + console.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' ); + return this.capabilities.getMaxAnisotropy(); + + }, + getPrecision: function () { + + console.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' ); + return this.capabilities.precision; + + }, + resetGLState: function () { + + console.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' ); + return this.state.reset(); + + }, + supportsFloatTextures: function () { + + console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' ); + return this.extensions.get( 'OES_texture_float' ); + + }, + supportsHalfFloatTextures: function () { + + console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' ); + return this.extensions.get( 'OES_texture_half_float' ); + + }, + supportsStandardDerivatives: function () { + + console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' ); + return this.extensions.get( 'OES_standard_derivatives' ); + + }, + supportsCompressedTextureS3TC: function () { + + console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' ); + return this.extensions.get( 'WEBGL_compressed_texture_s3tc' ); + + }, + supportsCompressedTexturePVRTC: function () { + + console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' ); + return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' ); + + }, + supportsBlendMinMax: function () { + + console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' ); + return this.extensions.get( 'EXT_blend_minmax' ); + + }, + supportsVertexTextures: function () { + + console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' ); + return this.capabilities.vertexTextures; + + }, + supportsInstancedArrays: function () { + + console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' ); + return this.extensions.get( 'ANGLE_instanced_arrays' ); + + }, + enableScissorTest: function ( boolean ) { + + console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' ); + this.setScissorTest( boolean ); + + }, + initMaterial: function () { + + console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' ); + + }, + addPrePlugin: function () { + + console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' ); + + }, + addPostPlugin: function () { + + console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' ); + + }, + updateShadowMap: function () { + + console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' ); + + }, + setFaceCulling: function () { + + console.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' ); + + }, + allocTextureUnit: function () { + + console.warn( 'THREE.WebGLRenderer: .allocTextureUnit() has been removed.' ); + + }, + setTexture: function () { + + console.warn( 'THREE.WebGLRenderer: .setTexture() has been removed.' ); + + }, + setTexture2D: function () { + + console.warn( 'THREE.WebGLRenderer: .setTexture2D() has been removed.' ); + + }, + setTextureCube: function () { + + console.warn( 'THREE.WebGLRenderer: .setTextureCube() has been removed.' ); + + }, + getActiveMipMapLevel: function () { + + console.warn( 'THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel().' ); + return this.getActiveMipmapLevel(); + + } + +} ); + +Object.defineProperties( WebGLRenderer.prototype, { + + shadowMapEnabled: { + get: function () { + + return this.shadowMap.enabled; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' ); + this.shadowMap.enabled = value; + + } + }, + shadowMapType: { + get: function () { + + return this.shadowMap.type; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' ); + this.shadowMap.type = value; + + } + }, + shadowMapCullFace: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' ); + return undefined; + + }, + set: function ( /* value */ ) { + + console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' ); + + } + }, + context: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .context has been removed. Use .getContext() instead.' ); + return this.getContext(); + + } + }, + vr: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .vr has been renamed to .xr' ); + return this.xr; + + } + }, + gammaInput: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.' ); + return false; + + }, + set: function () { + + console.warn( 'THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.' ); + + } + }, + gammaOutput: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.' ); + return false; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.' ); + this.outputEncoding = ( value === true ) ? sRGBEncoding : LinearEncoding; + + } + }, + toneMappingWhitePoint: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.' ); + return 1.0; + + }, + set: function () { + + console.warn( 'THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.' ); + + } + }, + +} ); + +Object.defineProperties( WebGLShadowMap.prototype, { + + cullFace: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' ); + return undefined; + + }, + set: function ( /* cullFace */ ) { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' ); + + } + }, + renderReverseSided: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' ); + return undefined; + + }, + set: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' ); + + } + }, + renderSingleSided: { + get: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' ); + return undefined; + + }, + set: function () { + + console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' ); + + } + } + +} ); + +function WebGLRenderTargetCube( width, height, options ) { + + console.warn( 'THREE.WebGLRenderTargetCube( width, height, options ) is now WebGLCubeRenderTarget( size, options ).' ); + return new WebGLCubeRenderTarget( width, options ); + +} + +// + +Object.defineProperties( WebGLRenderTarget.prototype, { + + wrapS: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' ); + return this.texture.wrapS; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' ); + this.texture.wrapS = value; + + } + }, + wrapT: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' ); + return this.texture.wrapT; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' ); + this.texture.wrapT = value; + + } + }, + magFilter: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' ); + return this.texture.magFilter; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' ); + this.texture.magFilter = value; + + } + }, + minFilter: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' ); + return this.texture.minFilter; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' ); + this.texture.minFilter = value; + + } + }, + anisotropy: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' ); + return this.texture.anisotropy; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' ); + this.texture.anisotropy = value; + + } + }, + offset: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' ); + return this.texture.offset; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' ); + this.texture.offset = value; + + } + }, + repeat: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' ); + return this.texture.repeat; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' ); + this.texture.repeat = value; + + } + }, + format: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' ); + return this.texture.format; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' ); + this.texture.format = value; + + } + }, + type: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' ); + return this.texture.type; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' ); + this.texture.type = value; + + } + }, + generateMipmaps: { + get: function () { + + console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' ); + return this.texture.generateMipmaps; + + }, + set: function ( value ) { + + console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' ); + this.texture.generateMipmaps = value; + + } + } + +} ); + +// + +Object.defineProperties( Audio.prototype, { + + load: { + value: function ( file ) { + + console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' ); + const scope = this; + const audioLoader = new AudioLoader(); + audioLoader.load( file, function ( buffer ) { + + scope.setBuffer( buffer ); + + } ); + return this; + + } + }, + startTime: { + set: function () { + + console.warn( 'THREE.Audio: .startTime is now .play( delay ).' ); + + } + } + +} ); + +AudioAnalyser.prototype.getData = function () { + + console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' ); + return this.getFrequencyData(); + +}; + +// + +CubeCamera.prototype.updateCubeMap = function ( renderer, scene ) { + + console.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' ); + return this.update( renderer, scene ); + +}; + +CubeCamera.prototype.clear = function ( renderer, color, depth, stencil ) { + + console.warn( 'THREE.CubeCamera: .clear() is now .renderTarget.clear().' ); + return this.renderTarget.clear( renderer, color, depth, stencil ); + +}; + +// + +const GeometryUtils = { + + merge: function ( geometry1, geometry2, materialIndexOffset ) { + + console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' ); + let matrix; + + if ( geometry2.isMesh ) { + + geometry2.matrixAutoUpdate && geometry2.updateMatrix(); + + matrix = geometry2.matrix; + geometry2 = geometry2.geometry; + + } + + geometry1.merge( geometry2, matrix, materialIndexOffset ); + + }, + + center: function ( geometry ) { + + console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' ); + return geometry.center(); + + } + +}; + +ImageUtils.crossOrigin = undefined; + +ImageUtils.loadTexture = function ( url, mapping, onLoad, onError ) { + + console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' ); + + const loader = new TextureLoader(); + loader.setCrossOrigin( this.crossOrigin ); + + const texture = loader.load( url, onLoad, undefined, onError ); + + if ( mapping ) texture.mapping = mapping; + + return texture; + +}; + +ImageUtils.loadTextureCube = function ( urls, mapping, onLoad, onError ) { + + console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' ); + + const loader = new CubeTextureLoader(); + loader.setCrossOrigin( this.crossOrigin ); + + const texture = loader.load( urls, onLoad, undefined, onError ); + + if ( mapping ) texture.mapping = mapping; + + return texture; + +}; + +ImageUtils.loadCompressedTexture = function () { + + console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' ); + +}; + +ImageUtils.loadCompressedTextureCube = function () { + + console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' ); + +}; + +// + +function CanvasRenderer() { + + console.error( 'THREE.CanvasRenderer has been removed' ); + +} + +// + +function JSONLoader() { + + console.error( 'THREE.JSONLoader has been removed.' ); + +} + +// + +const SceneUtils = { + + createMultiMaterialObject: function ( /* geometry, materials */ ) { + + console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' ); + + }, + + detach: function ( /* child, parent, scene */ ) { + + console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' ); + + }, + + attach: function ( /* child, scene, parent */ ) { + + console.error( 'THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js' ); + + } + +}; + +// + +function LensFlare() { + + console.error( 'THREE.LensFlare has been moved to /examples/jsm/objects/Lensflare.js' ); + +} + +if ( typeof __THREE_DEVTOOLS__ !== 'undefined' ) { + + /* eslint-disable no-undef */ + __THREE_DEVTOOLS__.dispatchEvent( new CustomEvent( 'register', { detail: { + revision: REVISION, + } } ) ); + /* eslint-enable no-undef */ + +} + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/controls/OrbitControls.js": +/*!*******************************************************************!*\ + !*** ./node_modules/three/examples/jsm/controls/OrbitControls.js ***! + \*******************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "OrbitControls": () => /* binding */ OrbitControls, +/* harmony export */ "MapControls": () => /* binding */ MapControls +/* harmony export */ }); +/* harmony import */ var _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../../../build/three.module.js */ "./node_modules/three/build/three.module.js"); + + +// This set of controls performs orbiting, dollying (zooming), and panning. +// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default). +// +// Orbit - left mouse / touch: one-finger move +// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish +// Pan - right mouse, or left mouse + ctrl/meta/shiftKey, or arrow keys / touch: two-finger move + +var OrbitControls = function ( object, domElement ) { + + if ( domElement === undefined ) console.warn( 'THREE.OrbitControls: The second parameter "domElement" is now mandatory.' ); + if ( domElement === document ) console.error( 'THREE.OrbitControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.' ); + + this.object = object; + this.domElement = domElement; + + // Set to false to disable this control + this.enabled = true; + + // "target" sets the location of focus, where the object orbits around + this.target = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + + // How far you can dolly in and out ( PerspectiveCamera only ) + this.minDistance = 0; + this.maxDistance = Infinity; + + // How far you can zoom in and out ( OrthographicCamera only ) + this.minZoom = 0; + this.maxZoom = Infinity; + + // How far you can orbit vertically, upper and lower limits. + // Range is 0 to Math.PI radians. + this.minPolarAngle = 0; // radians + this.maxPolarAngle = Math.PI; // radians + + // How far you can orbit horizontally, upper and lower limits. + // If set, the interval [ min, max ] must be a sub-interval of [ - 2 PI, 2 PI ], with ( max - min < 2 PI ) + this.minAzimuthAngle = - Infinity; // radians + this.maxAzimuthAngle = Infinity; // radians + + // Set to true to enable damping (inertia) + // If damping is enabled, you must call controls.update() in your animation loop + this.enableDamping = false; + this.dampingFactor = 0.05; + + // This option actually enables dollying in and out; left as "zoom" for backwards compatibility. + // Set to false to disable zooming + this.enableZoom = true; + this.zoomSpeed = 1.0; + + // Set to false to disable rotating + this.enableRotate = true; + this.rotateSpeed = 1.0; + + // Set to false to disable panning + this.enablePan = true; + this.panSpeed = 1.0; + this.screenSpacePanning = true; // if false, pan orthogonal to world-space direction camera.up + this.keyPanSpeed = 7.0; // pixels moved per arrow key push + + // Set to true to automatically rotate around the target + // If auto-rotate is enabled, you must call controls.update() in your animation loop + this.autoRotate = false; + this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60 + + // Set to false to disable use of the keys + this.enableKeys = true; + + // The four arrow keys + this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 }; + + // Mouse buttons + this.mouseButtons = { LEFT: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MOUSE.ROTATE, MIDDLE: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MOUSE.DOLLY, RIGHT: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MOUSE.PAN }; + + // Touch fingers + this.touches = { ONE: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.TOUCH.ROTATE, TWO: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.TOUCH.DOLLY_PAN }; + + // for reset + this.target0 = this.target.clone(); + this.position0 = this.object.position.clone(); + this.zoom0 = this.object.zoom; + + // + // public methods + // + + this.getPolarAngle = function () { + + return spherical.phi; + + }; + + this.getAzimuthalAngle = function () { + + return spherical.theta; + + }; + + this.saveState = function () { + + scope.target0.copy( scope.target ); + scope.position0.copy( scope.object.position ); + scope.zoom0 = scope.object.zoom; + + }; + + this.reset = function () { + + scope.target.copy( scope.target0 ); + scope.object.position.copy( scope.position0 ); + scope.object.zoom = scope.zoom0; + + scope.object.updateProjectionMatrix(); + scope.dispatchEvent( changeEvent ); + + scope.update(); + + state = STATE.NONE; + + }; + + // this method is exposed, but perhaps it would be better if we can make it private... + this.update = function () { + + var offset = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + + // so camera.up is the orbit axis + var quat = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Quaternion().setFromUnitVectors( object.up, new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3( 0, 1, 0 ) ); + var quatInverse = quat.clone().invert(); + + var lastPosition = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + var lastQuaternion = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Quaternion(); + + var twoPI = 2 * Math.PI; + + return function update() { + + var position = scope.object.position; + + offset.copy( position ).sub( scope.target ); + + // rotate offset to "y-axis-is-up" space + offset.applyQuaternion( quat ); + + // angle from z-axis around y-axis + spherical.setFromVector3( offset ); + + if ( scope.autoRotate && state === STATE.NONE ) { + + rotateLeft( getAutoRotationAngle() ); + + } + + if ( scope.enableDamping ) { + + spherical.theta += sphericalDelta.theta * scope.dampingFactor; + spherical.phi += sphericalDelta.phi * scope.dampingFactor; + + } else { + + spherical.theta += sphericalDelta.theta; + spherical.phi += sphericalDelta.phi; + + } + + // restrict theta to be between desired limits + + var min = scope.minAzimuthAngle; + var max = scope.maxAzimuthAngle; + + if ( isFinite( min ) && isFinite( max ) ) { + + if ( min < - Math.PI ) min += twoPI; else if ( min > Math.PI ) min -= twoPI; + + if ( max < - Math.PI ) max += twoPI; else if ( max > Math.PI ) max -= twoPI; + + if ( min <= max ) { + + spherical.theta = Math.max( min, Math.min( max, spherical.theta ) ); + + } else { + + spherical.theta = ( spherical.theta > ( min + max ) / 2 ) ? + Math.max( min, spherical.theta ) : + Math.min( max, spherical.theta ); + + } + + } + + // restrict phi to be between desired limits + spherical.phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, spherical.phi ) ); + + spherical.makeSafe(); + + + spherical.radius *= scale; + + // restrict radius to be between desired limits + spherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) ); + + // move target to panned location + + if ( scope.enableDamping === true ) { + + scope.target.addScaledVector( panOffset, scope.dampingFactor ); + + } else { + + scope.target.add( panOffset ); + + } + + offset.setFromSpherical( spherical ); + + // rotate offset back to "camera-up-vector-is-up" space + offset.applyQuaternion( quatInverse ); + + position.copy( scope.target ).add( offset ); + + scope.object.lookAt( scope.target ); + + if ( scope.enableDamping === true ) { + + sphericalDelta.theta *= ( 1 - scope.dampingFactor ); + sphericalDelta.phi *= ( 1 - scope.dampingFactor ); + + panOffset.multiplyScalar( 1 - scope.dampingFactor ); + + } else { + + sphericalDelta.set( 0, 0, 0 ); + + panOffset.set( 0, 0, 0 ); + + } + + scale = 1; + + // update condition is: + // min(camera displacement, camera rotation in radians)^2 > EPS + // using small-angle approximation cos(x/2) = 1 - x^2 / 8 + + if ( zoomChanged || + lastPosition.distanceToSquared( scope.object.position ) > EPS || + 8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) { + + scope.dispatchEvent( changeEvent ); + + lastPosition.copy( scope.object.position ); + lastQuaternion.copy( scope.object.quaternion ); + zoomChanged = false; + + return true; + + } + + return false; + + }; + + }(); + + this.dispose = function () { + + scope.domElement.removeEventListener( 'contextmenu', onContextMenu, false ); + + scope.domElement.removeEventListener( 'pointerdown', onPointerDown, false ); + scope.domElement.removeEventListener( 'wheel', onMouseWheel, false ); + + scope.domElement.removeEventListener( 'touchstart', onTouchStart, false ); + scope.domElement.removeEventListener( 'touchend', onTouchEnd, false ); + scope.domElement.removeEventListener( 'touchmove', onTouchMove, false ); + + scope.domElement.ownerDocument.removeEventListener( 'pointermove', onPointerMove, false ); + scope.domElement.ownerDocument.removeEventListener( 'pointerup', onPointerUp, false ); + + scope.domElement.removeEventListener( 'keydown', onKeyDown, false ); + + //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here? + + }; + + // + // internals + // + + var scope = this; + + var changeEvent = { type: 'change' }; + var startEvent = { type: 'start' }; + var endEvent = { type: 'end' }; + + var STATE = { + NONE: - 1, + ROTATE: 0, + DOLLY: 1, + PAN: 2, + TOUCH_ROTATE: 3, + TOUCH_PAN: 4, + TOUCH_DOLLY_PAN: 5, + TOUCH_DOLLY_ROTATE: 6 + }; + + var state = STATE.NONE; + + var EPS = 0.000001; + + // current position in spherical coordinates + var spherical = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Spherical(); + var sphericalDelta = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Spherical(); + + var scale = 1; + var panOffset = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + var zoomChanged = false; + + var rotateStart = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + var rotateEnd = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + var rotateDelta = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + + var panStart = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + var panEnd = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + var panDelta = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + + var dollyStart = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + var dollyEnd = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + var dollyDelta = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2(); + + function getAutoRotationAngle() { + + return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed; + + } + + function getZoomScale() { + + return Math.pow( 0.95, scope.zoomSpeed ); + + } + + function rotateLeft( angle ) { + + sphericalDelta.theta -= angle; + + } + + function rotateUp( angle ) { + + sphericalDelta.phi -= angle; + + } + + var panLeft = function () { + + var v = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + + return function panLeft( distance, objectMatrix ) { + + v.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix + v.multiplyScalar( - distance ); + + panOffset.add( v ); + + }; + + }(); + + var panUp = function () { + + var v = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + + return function panUp( distance, objectMatrix ) { + + if ( scope.screenSpacePanning === true ) { + + v.setFromMatrixColumn( objectMatrix, 1 ); + + } else { + + v.setFromMatrixColumn( objectMatrix, 0 ); + v.crossVectors( scope.object.up, v ); + + } + + v.multiplyScalar( distance ); + + panOffset.add( v ); + + }; + + }(); + + // deltaX and deltaY are in pixels; right and down are positive + var pan = function () { + + var offset = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + + return function pan( deltaX, deltaY ) { + + var element = scope.domElement; + + if ( scope.object.isPerspectiveCamera ) { + + // perspective + var position = scope.object.position; + offset.copy( position ).sub( scope.target ); + var targetDistance = offset.length(); + + // half of the fov is center to top of screen + targetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 ); + + // we use only clientHeight here so aspect ratio does not distort speed + panLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix ); + panUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix ); + + } else if ( scope.object.isOrthographicCamera ) { + + // orthographic + panLeft( deltaX * ( scope.object.right - scope.object.left ) / scope.object.zoom / element.clientWidth, scope.object.matrix ); + panUp( deltaY * ( scope.object.top - scope.object.bottom ) / scope.object.zoom / element.clientHeight, scope.object.matrix ); + + } else { + + // camera neither orthographic nor perspective + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' ); + scope.enablePan = false; + + } + + }; + + }(); + + function dollyOut( dollyScale ) { + + if ( scope.object.isPerspectiveCamera ) { + + scale /= dollyScale; + + } else if ( scope.object.isOrthographicCamera ) { + + scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) ); + scope.object.updateProjectionMatrix(); + zoomChanged = true; + + } else { + + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' ); + scope.enableZoom = false; + + } + + } + + function dollyIn( dollyScale ) { + + if ( scope.object.isPerspectiveCamera ) { + + scale *= dollyScale; + + } else if ( scope.object.isOrthographicCamera ) { + + scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) ); + scope.object.updateProjectionMatrix(); + zoomChanged = true; + + } else { + + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' ); + scope.enableZoom = false; + + } + + } + + // + // event callbacks - update the object state + // + + function handleMouseDownRotate( event ) { + + rotateStart.set( event.clientX, event.clientY ); + + } + + function handleMouseDownDolly( event ) { + + dollyStart.set( event.clientX, event.clientY ); + + } + + function handleMouseDownPan( event ) { + + panStart.set( event.clientX, event.clientY ); + + } + + function handleMouseMoveRotate( event ) { + + rotateEnd.set( event.clientX, event.clientY ); + + rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed ); + + var element = scope.domElement; + + rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height + + rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight ); + + rotateStart.copy( rotateEnd ); + + scope.update(); + + } + + function handleMouseMoveDolly( event ) { + + dollyEnd.set( event.clientX, event.clientY ); + + dollyDelta.subVectors( dollyEnd, dollyStart ); + + if ( dollyDelta.y > 0 ) { + + dollyOut( getZoomScale() ); + + } else if ( dollyDelta.y < 0 ) { + + dollyIn( getZoomScale() ); + + } + + dollyStart.copy( dollyEnd ); + + scope.update(); + + } + + function handleMouseMovePan( event ) { + + panEnd.set( event.clientX, event.clientY ); + + panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed ); + + pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + scope.update(); + + } + + function handleMouseUp( /*event*/ ) { + + // no-op + + } + + function handleMouseWheel( event ) { + + if ( event.deltaY < 0 ) { + + dollyIn( getZoomScale() ); + + } else if ( event.deltaY > 0 ) { + + dollyOut( getZoomScale() ); + + } + + scope.update(); + + } + + function handleKeyDown( event ) { + + var needsUpdate = false; + + switch ( event.keyCode ) { + + case scope.keys.UP: + pan( 0, scope.keyPanSpeed ); + needsUpdate = true; + break; + + case scope.keys.BOTTOM: + pan( 0, - scope.keyPanSpeed ); + needsUpdate = true; + break; + + case scope.keys.LEFT: + pan( scope.keyPanSpeed, 0 ); + needsUpdate = true; + break; + + case scope.keys.RIGHT: + pan( - scope.keyPanSpeed, 0 ); + needsUpdate = true; + break; + + } + + if ( needsUpdate ) { + + // prevent the browser from scrolling on cursor keys + event.preventDefault(); + + scope.update(); + + } + + + } + + function handleTouchStartRotate( event ) { + + if ( event.touches.length == 1 ) { + + rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } else { + + var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ); + var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ); + + rotateStart.set( x, y ); + + } + + } + + function handleTouchStartPan( event ) { + + if ( event.touches.length == 1 ) { + + panStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } else { + + var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ); + var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ); + + panStart.set( x, y ); + + } + + } + + function handleTouchStartDolly( event ) { + + var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX; + var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY; + + var distance = Math.sqrt( dx * dx + dy * dy ); + + dollyStart.set( 0, distance ); + + } + + function handleTouchStartDollyPan( event ) { + + if ( scope.enableZoom ) handleTouchStartDolly( event ); + + if ( scope.enablePan ) handleTouchStartPan( event ); + + } + + function handleTouchStartDollyRotate( event ) { + + if ( scope.enableZoom ) handleTouchStartDolly( event ); + + if ( scope.enableRotate ) handleTouchStartRotate( event ); + + } + + function handleTouchMoveRotate( event ) { + + if ( event.touches.length == 1 ) { + + rotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } else { + + var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ); + var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ); + + rotateEnd.set( x, y ); + + } + + rotateDelta.subVectors( rotateEnd, rotateStart ).multiplyScalar( scope.rotateSpeed ); + + var element = scope.domElement; + + rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientHeight ); // yes, height + + rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight ); + + rotateStart.copy( rotateEnd ); + + } + + function handleTouchMovePan( event ) { + + if ( event.touches.length == 1 ) { + + panEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } else { + + var x = 0.5 * ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ); + var y = 0.5 * ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ); + + panEnd.set( x, y ); + + } + + panDelta.subVectors( panEnd, panStart ).multiplyScalar( scope.panSpeed ); + + pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + } + + function handleTouchMoveDolly( event ) { + + var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX; + var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY; + + var distance = Math.sqrt( dx * dx + dy * dy ); + + dollyEnd.set( 0, distance ); + + dollyDelta.set( 0, Math.pow( dollyEnd.y / dollyStart.y, scope.zoomSpeed ) ); + + dollyOut( dollyDelta.y ); + + dollyStart.copy( dollyEnd ); + + } + + function handleTouchMoveDollyPan( event ) { + + if ( scope.enableZoom ) handleTouchMoveDolly( event ); + + if ( scope.enablePan ) handleTouchMovePan( event ); + + } + + function handleTouchMoveDollyRotate( event ) { + + if ( scope.enableZoom ) handleTouchMoveDolly( event ); + + if ( scope.enableRotate ) handleTouchMoveRotate( event ); + + } + + function handleTouchEnd( /*event*/ ) { + + // no-op + + } + + // + // event handlers - FSM: listen for events and reset state + // + + function onPointerDown( event ) { + + if ( scope.enabled === false ) return; + + switch ( event.pointerType ) { + + case 'mouse': + case 'pen': + onMouseDown( event ); + break; + + // TODO touch + + } + + } + + function onPointerMove( event ) { + + if ( scope.enabled === false ) return; + + switch ( event.pointerType ) { + + case 'mouse': + case 'pen': + onMouseMove( event ); + break; + + // TODO touch + + } + + } + + function onPointerUp( event ) { + + switch ( event.pointerType ) { + + case 'mouse': + case 'pen': + onMouseUp( event ); + break; + + // TODO touch + + } + + } + + function onMouseDown( event ) { + + // Prevent the browser from scrolling. + event.preventDefault(); + + // Manually set the focus since calling preventDefault above + // prevents the browser from setting it automatically. + + scope.domElement.focus ? scope.domElement.focus() : window.focus(); + + var mouseAction; + + switch ( event.button ) { + + case 0: + + mouseAction = scope.mouseButtons.LEFT; + break; + + case 1: + + mouseAction = scope.mouseButtons.MIDDLE; + break; + + case 2: + + mouseAction = scope.mouseButtons.RIGHT; + break; + + default: + + mouseAction = - 1; + + } + + switch ( mouseAction ) { + + case _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MOUSE.DOLLY: + + if ( scope.enableZoom === false ) return; + + handleMouseDownDolly( event ); + + state = STATE.DOLLY; + + break; + + case _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MOUSE.ROTATE: + + if ( event.ctrlKey || event.metaKey || event.shiftKey ) { + + if ( scope.enablePan === false ) return; + + handleMouseDownPan( event ); + + state = STATE.PAN; + + } else { + + if ( scope.enableRotate === false ) return; + + handleMouseDownRotate( event ); + + state = STATE.ROTATE; + + } + + break; + + case _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MOUSE.PAN: + + if ( event.ctrlKey || event.metaKey || event.shiftKey ) { + + if ( scope.enableRotate === false ) return; + + handleMouseDownRotate( event ); + + state = STATE.ROTATE; + + } else { + + if ( scope.enablePan === false ) return; + + handleMouseDownPan( event ); + + state = STATE.PAN; + + } + + break; + + default: + + state = STATE.NONE; + + } + + if ( state !== STATE.NONE ) { + + scope.domElement.ownerDocument.addEventListener( 'pointermove', onPointerMove, false ); + scope.domElement.ownerDocument.addEventListener( 'pointerup', onPointerUp, false ); + + scope.dispatchEvent( startEvent ); + + } + + } + + function onMouseMove( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + switch ( state ) { + + case STATE.ROTATE: + + if ( scope.enableRotate === false ) return; + + handleMouseMoveRotate( event ); + + break; + + case STATE.DOLLY: + + if ( scope.enableZoom === false ) return; + + handleMouseMoveDolly( event ); + + break; + + case STATE.PAN: + + if ( scope.enablePan === false ) return; + + handleMouseMovePan( event ); + + break; + + } + + } + + function onMouseUp( event ) { + + scope.domElement.ownerDocument.removeEventListener( 'pointermove', onPointerMove, false ); + scope.domElement.ownerDocument.removeEventListener( 'pointerup', onPointerUp, false ); + + if ( scope.enabled === false ) return; + + handleMouseUp( event ); + + scope.dispatchEvent( endEvent ); + + state = STATE.NONE; + + } + + function onMouseWheel( event ) { + + if ( scope.enabled === false || scope.enableZoom === false || ( state !== STATE.NONE && state !== STATE.ROTATE ) ) return; + + event.preventDefault(); + event.stopPropagation(); + + scope.dispatchEvent( startEvent ); + + handleMouseWheel( event ); + + scope.dispatchEvent( endEvent ); + + } + + function onKeyDown( event ) { + + if ( scope.enabled === false || scope.enableKeys === false || scope.enablePan === false ) return; + + handleKeyDown( event ); + + } + + function onTouchStart( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); // prevent scrolling + + switch ( event.touches.length ) { + + case 1: + + switch ( scope.touches.ONE ) { + + case _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.TOUCH.ROTATE: + + if ( scope.enableRotate === false ) return; + + handleTouchStartRotate( event ); + + state = STATE.TOUCH_ROTATE; + + break; + + case _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.TOUCH.PAN: + + if ( scope.enablePan === false ) return; + + handleTouchStartPan( event ); + + state = STATE.TOUCH_PAN; + + break; + + default: + + state = STATE.NONE; + + } + + break; + + case 2: + + switch ( scope.touches.TWO ) { + + case _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.TOUCH.DOLLY_PAN: + + if ( scope.enableZoom === false && scope.enablePan === false ) return; + + handleTouchStartDollyPan( event ); + + state = STATE.TOUCH_DOLLY_PAN; + + break; + + case _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.TOUCH.DOLLY_ROTATE: + + if ( scope.enableZoom === false && scope.enableRotate === false ) return; + + handleTouchStartDollyRotate( event ); + + state = STATE.TOUCH_DOLLY_ROTATE; + + break; + + default: + + state = STATE.NONE; + + } + + break; + + default: + + state = STATE.NONE; + + } + + if ( state !== STATE.NONE ) { + + scope.dispatchEvent( startEvent ); + + } + + } + + function onTouchMove( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); // prevent scrolling + event.stopPropagation(); + + switch ( state ) { + + case STATE.TOUCH_ROTATE: + + if ( scope.enableRotate === false ) return; + + handleTouchMoveRotate( event ); + + scope.update(); + + break; + + case STATE.TOUCH_PAN: + + if ( scope.enablePan === false ) return; + + handleTouchMovePan( event ); + + scope.update(); + + break; + + case STATE.TOUCH_DOLLY_PAN: + + if ( scope.enableZoom === false && scope.enablePan === false ) return; + + handleTouchMoveDollyPan( event ); + + scope.update(); + + break; + + case STATE.TOUCH_DOLLY_ROTATE: + + if ( scope.enableZoom === false && scope.enableRotate === false ) return; + + handleTouchMoveDollyRotate( event ); + + scope.update(); + + break; + + default: + + state = STATE.NONE; + + } + + } + + function onTouchEnd( event ) { + + if ( scope.enabled === false ) return; + + handleTouchEnd( event ); + + scope.dispatchEvent( endEvent ); + + state = STATE.NONE; + + } + + function onContextMenu( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + } + + // + + scope.domElement.addEventListener( 'contextmenu', onContextMenu, false ); + + scope.domElement.addEventListener( 'pointerdown', onPointerDown, false ); + scope.domElement.addEventListener( 'wheel', onMouseWheel, false ); + + scope.domElement.addEventListener( 'touchstart', onTouchStart, false ); + scope.domElement.addEventListener( 'touchend', onTouchEnd, false ); + scope.domElement.addEventListener( 'touchmove', onTouchMove, false ); + + scope.domElement.addEventListener( 'keydown', onKeyDown, false ); + + // force an update at start + + this.update(); + +}; + +OrbitControls.prototype = Object.create( _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.EventDispatcher.prototype ); +OrbitControls.prototype.constructor = OrbitControls; + + +// This set of controls performs orbiting, dollying (zooming), and panning. +// Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default). +// This is very similar to OrbitControls, another set of touch behavior +// +// Orbit - right mouse, or left mouse + ctrl/meta/shiftKey / touch: two-finger rotate +// Zoom - middle mouse, or mousewheel / touch: two-finger spread or squish +// Pan - left mouse, or arrow keys / touch: one-finger move + +var MapControls = function ( object, domElement ) { + + OrbitControls.call( this, object, domElement ); + + this.screenSpacePanning = false; // pan orthogonal to world-space direction camera.up + + this.mouseButtons.LEFT = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MOUSE.PAN; + this.mouseButtons.RIGHT = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MOUSE.ROTATE; + + this.touches.ONE = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.TOUCH.PAN; + this.touches.TWO = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.TOUCH.DOLLY_ROTATE; + +}; + +MapControls.prototype = Object.create( _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.EventDispatcher.prototype ); +MapControls.prototype.constructor = MapControls; + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/libs/stats.module.js": +/*!**************************************************************!*\ + !*** ./node_modules/three/examples/jsm/libs/stats.module.js ***! + \**************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => __WEBPACK_DEFAULT_EXPORT__ +/* harmony export */ }); +var Stats = function () { + + var mode = 0; + + var container = document.createElement( 'div' ); + container.style.cssText = 'position:fixed;top:0;left:0;cursor:pointer;opacity:0.9;z-index:10000'; + container.addEventListener( 'click', function ( event ) { + + event.preventDefault(); + showPanel( ++ mode % container.children.length ); + + }, false ); + + // + + function addPanel( panel ) { + + container.appendChild( panel.dom ); + return panel; + + } + + function showPanel( id ) { + + for ( var i = 0; i < container.children.length; i ++ ) { + + container.children[ i ].style.display = i === id ? 'block' : 'none'; + + } + + mode = id; + + } + + // + + var beginTime = ( performance || Date ).now(), prevTime = beginTime, frames = 0; + + var fpsPanel = addPanel( new Stats.Panel( 'FPS', '#0ff', '#002' ) ); + var msPanel = addPanel( new Stats.Panel( 'MS', '#0f0', '#020' ) ); + + if ( self.performance && self.performance.memory ) { + + var memPanel = addPanel( new Stats.Panel( 'MB', '#f08', '#201' ) ); + + } + + showPanel( 0 ); + + return { + + REVISION: 16, + + dom: container, + + addPanel: addPanel, + showPanel: showPanel, + + begin: function () { + + beginTime = ( performance || Date ).now(); + + }, + + end: function () { + + frames ++; + + var time = ( performance || Date ).now(); + + msPanel.update( time - beginTime, 200 ); + + if ( time >= prevTime + 1000 ) { + + fpsPanel.update( ( frames * 1000 ) / ( time - prevTime ), 100 ); + + prevTime = time; + frames = 0; + + if ( memPanel ) { + + var memory = performance.memory; + memPanel.update( memory.usedJSHeapSize / 1048576, memory.jsHeapSizeLimit / 1048576 ); + + } + + } + + return time; + + }, + + update: function () { + + beginTime = this.end(); + + }, + + // Backwards Compatibility + + domElement: container, + setMode: showPanel + + }; + +}; + +Stats.Panel = function ( name, fg, bg ) { + + var min = Infinity, max = 0, round = Math.round; + var PR = round( window.devicePixelRatio || 1 ); + + var WIDTH = 80 * PR, HEIGHT = 48 * PR, + TEXT_X = 3 * PR, TEXT_Y = 2 * PR, + GRAPH_X = 3 * PR, GRAPH_Y = 15 * PR, + GRAPH_WIDTH = 74 * PR, GRAPH_HEIGHT = 30 * PR; + + var canvas = document.createElement( 'canvas' ); + canvas.width = WIDTH; + canvas.height = HEIGHT; + canvas.style.cssText = 'width:80px;height:48px'; + + var context = canvas.getContext( '2d' ); + context.font = 'bold ' + ( 9 * PR ) + 'px Helvetica,Arial,sans-serif'; + context.textBaseline = 'top'; + + context.fillStyle = bg; + context.fillRect( 0, 0, WIDTH, HEIGHT ); + + context.fillStyle = fg; + context.fillText( name, TEXT_X, TEXT_Y ); + context.fillRect( GRAPH_X, GRAPH_Y, GRAPH_WIDTH, GRAPH_HEIGHT ); + + context.fillStyle = bg; + context.globalAlpha = 0.9; + context.fillRect( GRAPH_X, GRAPH_Y, GRAPH_WIDTH, GRAPH_HEIGHT ); + + return { + + dom: canvas, + + update: function ( value, maxValue ) { + + min = Math.min( min, value ); + max = Math.max( max, value ); + + context.fillStyle = bg; + context.globalAlpha = 1; + context.fillRect( 0, 0, WIDTH, GRAPH_Y ); + context.fillStyle = fg; + context.fillText( round( value ) + ' ' + name + ' (' + round( min ) + '-' + round( max ) + ')', TEXT_X, TEXT_Y ); + + context.drawImage( canvas, GRAPH_X + PR, GRAPH_Y, GRAPH_WIDTH - PR, GRAPH_HEIGHT, GRAPH_X, GRAPH_Y, GRAPH_WIDTH - PR, GRAPH_HEIGHT ); + + context.fillRect( GRAPH_X + GRAPH_WIDTH - PR, GRAPH_Y, PR, GRAPH_HEIGHT ); + + context.fillStyle = bg; + context.globalAlpha = 0.9; + context.fillRect( GRAPH_X + GRAPH_WIDTH - PR, GRAPH_Y, PR, round( ( 1 - ( value / maxValue ) ) * GRAPH_HEIGHT ) ); + + } + + }; + +}; + +/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (Stats); + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/math/SimplexNoise.js": +/*!**************************************************************!*\ + !*** ./node_modules/three/examples/jsm/math/SimplexNoise.js ***! + \**************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "SimplexNoise": () => /* binding */ SimplexNoise +/* harmony export */ }); +// Ported from Stefan Gustavson's java implementation +// http://staffwww.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf +// Read Stefan's excellent paper for details on how this code works. +// +// Sean McCullough banksean@gmail.com +// +// Added 4D noise + +/** + * You can pass in a random number generator object if you like. + * It is assumed to have a random() method. + */ +var SimplexNoise = function ( r ) { + + if ( r == undefined ) r = Math; + this.grad3 = [[ 1, 1, 0 ], [ - 1, 1, 0 ], [ 1, - 1, 0 ], [ - 1, - 1, 0 ], + [ 1, 0, 1 ], [ - 1, 0, 1 ], [ 1, 0, - 1 ], [ - 1, 0, - 1 ], + [ 0, 1, 1 ], [ 0, - 1, 1 ], [ 0, 1, - 1 ], [ 0, - 1, - 1 ]]; + + this.grad4 = [[ 0, 1, 1, 1 ], [ 0, 1, 1, - 1 ], [ 0, 1, - 1, 1 ], [ 0, 1, - 1, - 1 ], + [ 0, - 1, 1, 1 ], [ 0, - 1, 1, - 1 ], [ 0, - 1, - 1, 1 ], [ 0, - 1, - 1, - 1 ], + [ 1, 0, 1, 1 ], [ 1, 0, 1, - 1 ], [ 1, 0, - 1, 1 ], [ 1, 0, - 1, - 1 ], + [ - 1, 0, 1, 1 ], [ - 1, 0, 1, - 1 ], [ - 1, 0, - 1, 1 ], [ - 1, 0, - 1, - 1 ], + [ 1, 1, 0, 1 ], [ 1, 1, 0, - 1 ], [ 1, - 1, 0, 1 ], [ 1, - 1, 0, - 1 ], + [ - 1, 1, 0, 1 ], [ - 1, 1, 0, - 1 ], [ - 1, - 1, 0, 1 ], [ - 1, - 1, 0, - 1 ], + [ 1, 1, 1, 0 ], [ 1, 1, - 1, 0 ], [ 1, - 1, 1, 0 ], [ 1, - 1, - 1, 0 ], + [ - 1, 1, 1, 0 ], [ - 1, 1, - 1, 0 ], [ - 1, - 1, 1, 0 ], [ - 1, - 1, - 1, 0 ]]; + + this.p = []; + + for ( var i = 0; i < 256; i ++ ) { + + this.p[ i ] = Math.floor( r.random() * 256 ); + + } + + // To remove the need for index wrapping, double the permutation table length + this.perm = []; + + for ( var i = 0; i < 512; i ++ ) { + + this.perm[ i ] = this.p[ i & 255 ]; + + } + + // A lookup table to traverse the simplex around a given point in 4D. + // Details can be found where this table is used, in the 4D noise method. + this.simplex = [ + [ 0, 1, 2, 3 ], [ 0, 1, 3, 2 ], [ 0, 0, 0, 0 ], [ 0, 2, 3, 1 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 1, 2, 3, 0 ], + [ 0, 2, 1, 3 ], [ 0, 0, 0, 0 ], [ 0, 3, 1, 2 ], [ 0, 3, 2, 1 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 1, 3, 2, 0 ], + [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], + [ 1, 2, 0, 3 ], [ 0, 0, 0, 0 ], [ 1, 3, 0, 2 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 2, 3, 0, 1 ], [ 2, 3, 1, 0 ], + [ 1, 0, 2, 3 ], [ 1, 0, 3, 2 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 2, 0, 3, 1 ], [ 0, 0, 0, 0 ], [ 2, 1, 3, 0 ], + [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], + [ 2, 0, 1, 3 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 3, 0, 1, 2 ], [ 3, 0, 2, 1 ], [ 0, 0, 0, 0 ], [ 3, 1, 2, 0 ], + [ 2, 1, 0, 3 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 0, 0, 0, 0 ], [ 3, 1, 0, 2 ], [ 0, 0, 0, 0 ], [ 3, 2, 0, 1 ], [ 3, 2, 1, 0 ]]; + +}; + +SimplexNoise.prototype.dot = function ( g, x, y ) { + + return g[ 0 ] * x + g[ 1 ] * y; + +}; + +SimplexNoise.prototype.dot3 = function ( g, x, y, z ) { + + return g[ 0 ] * x + g[ 1 ] * y + g[ 2 ] * z; + +}; + +SimplexNoise.prototype.dot4 = function ( g, x, y, z, w ) { + + return g[ 0 ] * x + g[ 1 ] * y + g[ 2 ] * z + g[ 3 ] * w; + +}; + +SimplexNoise.prototype.noise = function ( xin, yin ) { + + var n0, n1, n2; // Noise contributions from the three corners + // Skew the input space to determine which simplex cell we're in + var F2 = 0.5 * ( Math.sqrt( 3.0 ) - 1.0 ); + var s = ( xin + yin ) * F2; // Hairy factor for 2D + var i = Math.floor( xin + s ); + var j = Math.floor( yin + s ); + var G2 = ( 3.0 - Math.sqrt( 3.0 ) ) / 6.0; + var t = ( i + j ) * G2; + var X0 = i - t; // Unskew the cell origin back to (x,y) space + var Y0 = j - t; + var x0 = xin - X0; // The x,y distances from the cell origin + var y0 = yin - Y0; + // For the 2D case, the simplex shape is an equilateral triangle. + // Determine which simplex we are in. + var i1, j1; // Offsets for second (middle) corner of simplex in (i,j) coords + if ( x0 > y0 ) { + + i1 = 1; j1 = 0; + + // lower triangle, XY order: (0,0)->(1,0)->(1,1) + + } else { + + i1 = 0; j1 = 1; + + } // upper triangle, YX order: (0,0)->(0,1)->(1,1) + + // A step of (1,0) in (i,j) means a step of (1-c,-c) in (x,y), and + // a step of (0,1) in (i,j) means a step of (-c,1-c) in (x,y), where + // c = (3-sqrt(3))/6 + var x1 = x0 - i1 + G2; // Offsets for middle corner in (x,y) unskewed coords + var y1 = y0 - j1 + G2; + var x2 = x0 - 1.0 + 2.0 * G2; // Offsets for last corner in (x,y) unskewed coords + var y2 = y0 - 1.0 + 2.0 * G2; + // Work out the hashed gradient indices of the three simplex corners + var ii = i & 255; + var jj = j & 255; + var gi0 = this.perm[ ii + this.perm[ jj ] ] % 12; + var gi1 = this.perm[ ii + i1 + this.perm[ jj + j1 ] ] % 12; + var gi2 = this.perm[ ii + 1 + this.perm[ jj + 1 ] ] % 12; + // Calculate the contribution from the three corners + var t0 = 0.5 - x0 * x0 - y0 * y0; + if ( t0 < 0 ) n0 = 0.0; + else { + + t0 *= t0; + n0 = t0 * t0 * this.dot( this.grad3[ gi0 ], x0, y0 ); // (x,y) of grad3 used for 2D gradient + + } + + var t1 = 0.5 - x1 * x1 - y1 * y1; + if ( t1 < 0 ) n1 = 0.0; + else { + + t1 *= t1; + n1 = t1 * t1 * this.dot( this.grad3[ gi1 ], x1, y1 ); + + } + + var t2 = 0.5 - x2 * x2 - y2 * y2; + if ( t2 < 0 ) n2 = 0.0; + else { + + t2 *= t2; + n2 = t2 * t2 * this.dot( this.grad3[ gi2 ], x2, y2 ); + + } + + // Add contributions from each corner to get the final noise value. + // The result is scaled to return values in the interval [-1,1]. + return 70.0 * ( n0 + n1 + n2 ); + +}; + +// 3D simplex noise +SimplexNoise.prototype.noise3d = function ( xin, yin, zin ) { + + var n0, n1, n2, n3; // Noise contributions from the four corners + // Skew the input space to determine which simplex cell we're in + var F3 = 1.0 / 3.0; + var s = ( xin + yin + zin ) * F3; // Very nice and simple skew factor for 3D + var i = Math.floor( xin + s ); + var j = Math.floor( yin + s ); + var k = Math.floor( zin + s ); + var G3 = 1.0 / 6.0; // Very nice and simple unskew factor, too + var t = ( i + j + k ) * G3; + var X0 = i - t; // Unskew the cell origin back to (x,y,z) space + var Y0 = j - t; + var Z0 = k - t; + var x0 = xin - X0; // The x,y,z distances from the cell origin + var y0 = yin - Y0; + var z0 = zin - Z0; + // For the 3D case, the simplex shape is a slightly irregular tetrahedron. + // Determine which simplex we are in. + var i1, j1, k1; // Offsets for second corner of simplex in (i,j,k) coords + var i2, j2, k2; // Offsets for third corner of simplex in (i,j,k) coords + if ( x0 >= y0 ) { + + if ( y0 >= z0 ) { + + i1 = 1; j1 = 0; k1 = 0; i2 = 1; j2 = 1; k2 = 0; + + // X Y Z order + + } else if ( x0 >= z0 ) { + + i1 = 1; j1 = 0; k1 = 0; i2 = 1; j2 = 0; k2 = 1; + + // X Z Y order + + } else { + + i1 = 0; j1 = 0; k1 = 1; i2 = 1; j2 = 0; k2 = 1; + + } // Z X Y order + + } else { // x0 y0 ) ? 32 : 0; + var c2 = ( x0 > z0 ) ? 16 : 0; + var c3 = ( y0 > z0 ) ? 8 : 0; + var c4 = ( x0 > w0 ) ? 4 : 0; + var c5 = ( y0 > w0 ) ? 2 : 0; + var c6 = ( z0 > w0 ) ? 1 : 0; + var c = c1 + c2 + c3 + c4 + c5 + c6; + var i1, j1, k1, l1; // The integer offsets for the second simplex corner + var i2, j2, k2, l2; // The integer offsets for the third simplex corner + var i3, j3, k3, l3; // The integer offsets for the fourth simplex corner + // simplex[c] is a 4-vector with the numbers 0, 1, 2 and 3 in some order. + // Many values of c will never occur, since e.g. x>y>z>w makes x= 3 ? 1 : 0; + j1 = simplex[ c ][ 1 ] >= 3 ? 1 : 0; + k1 = simplex[ c ][ 2 ] >= 3 ? 1 : 0; + l1 = simplex[ c ][ 3 ] >= 3 ? 1 : 0; + // The number 2 in the "simplex" array is at the second largest coordinate. + i2 = simplex[ c ][ 0 ] >= 2 ? 1 : 0; + j2 = simplex[ c ][ 1 ] >= 2 ? 1 : 0; k2 = simplex[ c ][ 2 ] >= 2 ? 1 : 0; + l2 = simplex[ c ][ 3 ] >= 2 ? 1 : 0; + // The number 1 in the "simplex" array is at the second smallest coordinate. + i3 = simplex[ c ][ 0 ] >= 1 ? 1 : 0; + j3 = simplex[ c ][ 1 ] >= 1 ? 1 : 0; + k3 = simplex[ c ][ 2 ] >= 1 ? 1 : 0; + l3 = simplex[ c ][ 3 ] >= 1 ? 1 : 0; + // The fifth corner has all coordinate offsets = 1, so no need to look that up. + var x1 = x0 - i1 + G4; // Offsets for second corner in (x,y,z,w) coords + var y1 = y0 - j1 + G4; + var z1 = z0 - k1 + G4; + var w1 = w0 - l1 + G4; + var x2 = x0 - i2 + 2.0 * G4; // Offsets for third corner in (x,y,z,w) coords + var y2 = y0 - j2 + 2.0 * G4; + var z2 = z0 - k2 + 2.0 * G4; + var w2 = w0 - l2 + 2.0 * G4; + var x3 = x0 - i3 + 3.0 * G4; // Offsets for fourth corner in (x,y,z,w) coords + var y3 = y0 - j3 + 3.0 * G4; + var z3 = z0 - k3 + 3.0 * G4; + var w3 = w0 - l3 + 3.0 * G4; + var x4 = x0 - 1.0 + 4.0 * G4; // Offsets for last corner in (x,y,z,w) coords + var y4 = y0 - 1.0 + 4.0 * G4; + var z4 = z0 - 1.0 + 4.0 * G4; + var w4 = w0 - 1.0 + 4.0 * G4; + // Work out the hashed gradient indices of the five simplex corners + var ii = i & 255; + var jj = j & 255; + var kk = k & 255; + var ll = l & 255; + var gi0 = perm[ ii + perm[ jj + perm[ kk + perm[ ll ] ] ] ] % 32; + var gi1 = perm[ ii + i1 + perm[ jj + j1 + perm[ kk + k1 + perm[ ll + l1 ] ] ] ] % 32; + var gi2 = perm[ ii + i2 + perm[ jj + j2 + perm[ kk + k2 + perm[ ll + l2 ] ] ] ] % 32; + var gi3 = perm[ ii + i3 + perm[ jj + j3 + perm[ kk + k3 + perm[ ll + l3 ] ] ] ] % 32; + var gi4 = perm[ ii + 1 + perm[ jj + 1 + perm[ kk + 1 + perm[ ll + 1 ] ] ] ] % 32; + // Calculate the contribution from the five corners + var t0 = 0.6 - x0 * x0 - y0 * y0 - z0 * z0 - w0 * w0; + if ( t0 < 0 ) n0 = 0.0; + else { + + t0 *= t0; + n0 = t0 * t0 * this.dot4( grad4[ gi0 ], x0, y0, z0, w0 ); + + } + + var t1 = 0.6 - x1 * x1 - y1 * y1 - z1 * z1 - w1 * w1; + if ( t1 < 0 ) n1 = 0.0; + else { + + t1 *= t1; + n1 = t1 * t1 * this.dot4( grad4[ gi1 ], x1, y1, z1, w1 ); + + } + + var t2 = 0.6 - x2 * x2 - y2 * y2 - z2 * z2 - w2 * w2; + if ( t2 < 0 ) n2 = 0.0; + else { + + t2 *= t2; + n2 = t2 * t2 * this.dot4( grad4[ gi2 ], x2, y2, z2, w2 ); + + } + + var t3 = 0.6 - x3 * x3 - y3 * y3 - z3 * z3 - w3 * w3; + if ( t3 < 0 ) n3 = 0.0; + else { + + t3 *= t3; + n3 = t3 * t3 * this.dot4( grad4[ gi3 ], x3, y3, z3, w3 ); + + } + + var t4 = 0.6 - x4 * x4 - y4 * y4 - z4 * z4 - w4 * w4; + if ( t4 < 0 ) n4 = 0.0; + else { + + t4 *= t4; + n4 = t4 * t4 * this.dot4( grad4[ gi4 ], x4, y4, z4, w4 ); + + } + + // Sum up and scale the result to cover the range [-1,1] + return 27.0 * ( n0 + n1 + n2 + n3 + n4 ); + +}; + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/postprocessing/EffectComposer.js": +/*!**************************************************************************!*\ + !*** ./node_modules/three/examples/jsm/postprocessing/EffectComposer.js ***! + \**************************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "EffectComposer": () => /* binding */ EffectComposer, +/* harmony export */ "Pass": () => /* binding */ Pass +/* harmony export */ }); +/* harmony import */ var _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../../../build/three.module.js */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var _shaders_CopyShader_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../shaders/CopyShader.js */ "./node_modules/three/examples/jsm/shaders/CopyShader.js"); +/* harmony import */ var _postprocessing_ShaderPass_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../postprocessing/ShaderPass.js */ "./node_modules/three/examples/jsm/postprocessing/ShaderPass.js"); +/* harmony import */ var _postprocessing_MaskPass_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../postprocessing/MaskPass.js */ "./node_modules/three/examples/jsm/postprocessing/MaskPass.js"); + + + + + + +var EffectComposer = function ( renderer, renderTarget ) { + + this.renderer = renderer; + + if ( renderTarget === undefined ) { + + var parameters = { + minFilter: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.LinearFilter, + magFilter: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.LinearFilter, + format: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.RGBAFormat + }; + + var size = renderer.getSize( new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2() ); + this._pixelRatio = renderer.getPixelRatio(); + this._width = size.width; + this._height = size.height; + + renderTarget = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.WebGLRenderTarget( this._width * this._pixelRatio, this._height * this._pixelRatio, parameters ); + renderTarget.texture.name = 'EffectComposer.rt1'; + + } else { + + this._pixelRatio = 1; + this._width = renderTarget.width; + this._height = renderTarget.height; + + } + + this.renderTarget1 = renderTarget; + this.renderTarget2 = renderTarget.clone(); + this.renderTarget2.texture.name = 'EffectComposer.rt2'; + + this.writeBuffer = this.renderTarget1; + this.readBuffer = this.renderTarget2; + + this.renderToScreen = true; + + this.passes = []; + + // dependencies + + if ( _shaders_CopyShader_js__WEBPACK_IMPORTED_MODULE_1__.CopyShader === undefined ) { + + console.error( 'THREE.EffectComposer relies on CopyShader' ); + + } + + if ( _postprocessing_ShaderPass_js__WEBPACK_IMPORTED_MODULE_2__.ShaderPass === undefined ) { + + console.error( 'THREE.EffectComposer relies on ShaderPass' ); + + } + + this.copyPass = new _postprocessing_ShaderPass_js__WEBPACK_IMPORTED_MODULE_2__.ShaderPass( _shaders_CopyShader_js__WEBPACK_IMPORTED_MODULE_1__.CopyShader ); + + this.clock = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Clock(); + +}; + +Object.assign( EffectComposer.prototype, { + + swapBuffers: function () { + + var tmp = this.readBuffer; + this.readBuffer = this.writeBuffer; + this.writeBuffer = tmp; + + }, + + addPass: function ( pass ) { + + this.passes.push( pass ); + pass.setSize( this._width * this._pixelRatio, this._height * this._pixelRatio ); + + }, + + insertPass: function ( pass, index ) { + + this.passes.splice( index, 0, pass ); + pass.setSize( this._width * this._pixelRatio, this._height * this._pixelRatio ); + + }, + + removePass: function ( pass ) { + + const index = this.passes.indexOf( pass ); + + if ( index !== - 1 ) { + + this.passes.splice( index, 1 ); + + } + + }, + + isLastEnabledPass: function ( passIndex ) { + + for ( var i = passIndex + 1; i < this.passes.length; i ++ ) { + + if ( this.passes[ i ].enabled ) { + + return false; + + } + + } + + return true; + + }, + + render: function ( deltaTime ) { + + // deltaTime value is in seconds + + if ( deltaTime === undefined ) { + + deltaTime = this.clock.getDelta(); + + } + + var currentRenderTarget = this.renderer.getRenderTarget(); + + var maskActive = false; + + var pass, i, il = this.passes.length; + + for ( i = 0; i < il; i ++ ) { + + pass = this.passes[ i ]; + + if ( pass.enabled === false ) continue; + + pass.renderToScreen = ( this.renderToScreen && this.isLastEnabledPass( i ) ); + pass.render( this.renderer, this.writeBuffer, this.readBuffer, deltaTime, maskActive ); + + if ( pass.needsSwap ) { + + if ( maskActive ) { + + var context = this.renderer.getContext(); + var stencil = this.renderer.state.buffers.stencil; + + //context.stencilFunc( context.NOTEQUAL, 1, 0xffffffff ); + stencil.setFunc( context.NOTEQUAL, 1, 0xffffffff ); + + this.copyPass.render( this.renderer, this.writeBuffer, this.readBuffer, deltaTime ); + + //context.stencilFunc( context.EQUAL, 1, 0xffffffff ); + stencil.setFunc( context.EQUAL, 1, 0xffffffff ); + + } + + this.swapBuffers(); + + } + + if ( _postprocessing_MaskPass_js__WEBPACK_IMPORTED_MODULE_3__.MaskPass !== undefined ) { + + if ( pass instanceof _postprocessing_MaskPass_js__WEBPACK_IMPORTED_MODULE_3__.MaskPass ) { + + maskActive = true; + + } else if ( pass instanceof _postprocessing_MaskPass_js__WEBPACK_IMPORTED_MODULE_3__.ClearMaskPass ) { + + maskActive = false; + + } + + } + + } + + this.renderer.setRenderTarget( currentRenderTarget ); + + }, + + reset: function ( renderTarget ) { + + if ( renderTarget === undefined ) { + + var size = this.renderer.getSize( new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2() ); + this._pixelRatio = this.renderer.getPixelRatio(); + this._width = size.width; + this._height = size.height; + + renderTarget = this.renderTarget1.clone(); + renderTarget.setSize( this._width * this._pixelRatio, this._height * this._pixelRatio ); + + } + + this.renderTarget1.dispose(); + this.renderTarget2.dispose(); + this.renderTarget1 = renderTarget; + this.renderTarget2 = renderTarget.clone(); + + this.writeBuffer = this.renderTarget1; + this.readBuffer = this.renderTarget2; + + }, + + setSize: function ( width, height ) { + + this._width = width; + this._height = height; + + var effectiveWidth = this._width * this._pixelRatio; + var effectiveHeight = this._height * this._pixelRatio; + + this.renderTarget1.setSize( effectiveWidth, effectiveHeight ); + this.renderTarget2.setSize( effectiveWidth, effectiveHeight ); + + for ( var i = 0; i < this.passes.length; i ++ ) { + + this.passes[ i ].setSize( effectiveWidth, effectiveHeight ); + + } + + }, + + setPixelRatio: function ( pixelRatio ) { + + this._pixelRatio = pixelRatio; + + this.setSize( this._width, this._height ); + + } + +} ); + + +var Pass = function () { + + // if set to true, the pass is processed by the composer + this.enabled = true; + + // if set to true, the pass indicates to swap read and write buffer after rendering + this.needsSwap = true; + + // if set to true, the pass clears its buffer before rendering + this.clear = false; + + // if set to true, the result of the pass is rendered to screen. This is set automatically by EffectComposer. + this.renderToScreen = false; + +}; + +Object.assign( Pass.prototype, { + + setSize: function ( /* width, height */ ) {}, + + render: function ( /* renderer, writeBuffer, readBuffer, deltaTime, maskActive */ ) { + + console.error( 'THREE.Pass: .render() must be implemented in derived pass.' ); + + } + +} ); + +// Helper for passes that need to fill the viewport with a single quad. +Pass.FullScreenQuad = ( function () { + + var camera = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 ); + var geometry = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.PlaneBufferGeometry( 2, 2 ); + + var FullScreenQuad = function ( material ) { + + this._mesh = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Mesh( geometry, material ); + + }; + + Object.defineProperty( FullScreenQuad.prototype, 'material', { + + get: function () { + + return this._mesh.material; + + }, + + set: function ( value ) { + + this._mesh.material = value; + + } + + } ); + + Object.assign( FullScreenQuad.prototype, { + + dispose: function () { + + this._mesh.geometry.dispose(); + + }, + + render: function ( renderer ) { + + renderer.render( this._mesh, camera ); + + } + + } ); + + return FullScreenQuad; + +} )(); + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/postprocessing/MaskPass.js": +/*!********************************************************************!*\ + !*** ./node_modules/three/examples/jsm/postprocessing/MaskPass.js ***! + \********************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "MaskPass": () => /* binding */ MaskPass, +/* harmony export */ "ClearMaskPass": () => /* binding */ ClearMaskPass +/* harmony export */ }); +/* harmony import */ var _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../postprocessing/Pass.js */ "./node_modules/three/examples/jsm/postprocessing/Pass.js"); + + +var MaskPass = function ( scene, camera ) { + + _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_0__.Pass.call( this ); + + this.scene = scene; + this.camera = camera; + + this.clear = true; + this.needsSwap = false; + + this.inverse = false; + +}; + +MaskPass.prototype = Object.assign( Object.create( _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_0__.Pass.prototype ), { + + constructor: MaskPass, + + render: function ( renderer, writeBuffer, readBuffer /*, deltaTime, maskActive */ ) { + + var context = renderer.getContext(); + var state = renderer.state; + + // don't update color or depth + + state.buffers.color.setMask( false ); + state.buffers.depth.setMask( false ); + + // lock buffers + + state.buffers.color.setLocked( true ); + state.buffers.depth.setLocked( true ); + + // set up stencil + + var writeValue, clearValue; + + if ( this.inverse ) { + + writeValue = 0; + clearValue = 1; + + } else { + + writeValue = 1; + clearValue = 0; + + } + + state.buffers.stencil.setTest( true ); + state.buffers.stencil.setOp( context.REPLACE, context.REPLACE, context.REPLACE ); + state.buffers.stencil.setFunc( context.ALWAYS, writeValue, 0xffffffff ); + state.buffers.stencil.setClear( clearValue ); + state.buffers.stencil.setLocked( true ); + + // draw into the stencil buffer + + renderer.setRenderTarget( readBuffer ); + if ( this.clear ) renderer.clear(); + renderer.render( this.scene, this.camera ); + + renderer.setRenderTarget( writeBuffer ); + if ( this.clear ) renderer.clear(); + renderer.render( this.scene, this.camera ); + + // unlock color and depth buffer for subsequent rendering + + state.buffers.color.setLocked( false ); + state.buffers.depth.setLocked( false ); + + // only render where stencil is set to 1 + + state.buffers.stencil.setLocked( false ); + state.buffers.stencil.setFunc( context.EQUAL, 1, 0xffffffff ); // draw if == 1 + state.buffers.stencil.setOp( context.KEEP, context.KEEP, context.KEEP ); + state.buffers.stencil.setLocked( true ); + + } + +} ); + + +var ClearMaskPass = function () { + + _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_0__.Pass.call( this ); + + this.needsSwap = false; + +}; + +ClearMaskPass.prototype = Object.create( _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_0__.Pass.prototype ); + +Object.assign( ClearMaskPass.prototype, { + + render: function ( renderer /*, writeBuffer, readBuffer, deltaTime, maskActive */ ) { + + renderer.state.buffers.stencil.setLocked( false ); + renderer.state.buffers.stencil.setTest( false ); + + } + +} ); + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/postprocessing/Pass.js": +/*!****************************************************************!*\ + !*** ./node_modules/three/examples/jsm/postprocessing/Pass.js ***! + \****************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "Pass": () => /* binding */ Pass +/* harmony export */ }); +/* harmony import */ var _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../../../build/three.module.js */ "./node_modules/three/build/three.module.js"); + + +function Pass() { + + // if set to true, the pass is processed by the composer + this.enabled = true; + + // if set to true, the pass indicates to swap read and write buffer after rendering + this.needsSwap = true; + + // if set to true, the pass clears its buffer before rendering + this.clear = false; + + // if set to true, the result of the pass is rendered to screen. This is set automatically by EffectComposer. + this.renderToScreen = false; + +} + +Object.assign( Pass.prototype, { + + setSize: function ( /* width, height */ ) {}, + + render: function ( /* renderer, writeBuffer, readBuffer, deltaTime, maskActive */ ) { + + console.error( 'THREE.Pass: .render() must be implemented in derived pass.' ); + + } + +} ); + +// Helper for passes that need to fill the viewport with a single quad. + +// Important: It's actually a hack to put FullScreenQuad into the Pass namespace. This is only +// done to make examples/js code work. Normally, FullScreenQuad should be exported +// from this module like Pass. + +Pass.FullScreenQuad = ( function () { + + var camera = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.OrthographicCamera( - 1, 1, 1, - 1, 0, 1 ); + var geometry = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.PlaneBufferGeometry( 2, 2 ); + + var FullScreenQuad = function ( material ) { + + this._mesh = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Mesh( geometry, material ); + + }; + + Object.defineProperty( FullScreenQuad.prototype, 'material', { + + get: function () { + + return this._mesh.material; + + }, + + set: function ( value ) { + + this._mesh.material = value; + + } + + } ); + + Object.assign( FullScreenQuad.prototype, { + + dispose: function () { + + this._mesh.geometry.dispose(); + + }, + + render: function ( renderer ) { + + renderer.render( this._mesh, camera ); + + } + + } ); + + return FullScreenQuad; + +} )(); + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/postprocessing/SSAOPass.js": +/*!********************************************************************!*\ + !*** ./node_modules/three/examples/jsm/postprocessing/SSAOPass.js ***! + \********************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "SSAOPass": () => /* binding */ SSAOPass +/* harmony export */ }); +/* harmony import */ var _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../../../build/three.module.js */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../postprocessing/Pass.js */ "./node_modules/three/examples/jsm/postprocessing/Pass.js"); +/* harmony import */ var _math_SimplexNoise_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../math/SimplexNoise.js */ "./node_modules/three/examples/jsm/math/SimplexNoise.js"); +/* harmony import */ var _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../shaders/SSAOShader.js */ "./node_modules/three/examples/jsm/shaders/SSAOShader.js"); +/* harmony import */ var _shaders_CopyShader_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! ../shaders/CopyShader.js */ "./node_modules/three/examples/jsm/shaders/CopyShader.js"); + + + + + + + + +var SSAOPass = function ( scene, camera, width, height ) { + + _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_1__.Pass.call( this ); + + this.width = ( width !== undefined ) ? width : 512; + this.height = ( height !== undefined ) ? height : 512; + + this.clear = true; + + this.camera = camera; + this.scene = scene; + + this.kernelRadius = 8; + this.kernelSize = 32; + this.kernel = []; + this.noiseTexture = null; + this.output = 0; + + this.minDistance = 0.005; + this.maxDistance = 0.1; + + this._visibilityCache = new Map(); + + // + + this.generateSampleKernel(); + this.generateRandomKernelRotations(); + + // beauty render target + + var depthTexture = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.DepthTexture(); + depthTexture.type = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.UnsignedShortType; + depthTexture.minFilter = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NearestFilter; + depthTexture.maxFilter = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NearestFilter; + + this.beautyRenderTarget = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.WebGLRenderTarget( this.width, this.height, { + minFilter: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.LinearFilter, + magFilter: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.LinearFilter, + format: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.RGBAFormat + } ); + + // normal render target with depth buffer + + this.normalRenderTarget = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.WebGLRenderTarget( this.width, this.height, { + minFilter: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NearestFilter, + magFilter: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NearestFilter, + format: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.RGBAFormat, + depthTexture: depthTexture + } ); + + // ssao render target + + this.ssaoRenderTarget = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.WebGLRenderTarget( this.width, this.height, { + minFilter: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.LinearFilter, + magFilter: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.LinearFilter, + format: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.RGBAFormat + } ); + + this.blurRenderTarget = this.ssaoRenderTarget.clone(); + + // ssao material + + if ( _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOShader === undefined ) { + + console.error( 'THREE.SSAOPass: The pass relies on SSAOShader.' ); + + } + + this.ssaoMaterial = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.ShaderMaterial( { + defines: Object.assign( {}, _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOShader.defines ), + uniforms: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.UniformsUtils.clone( _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOShader.uniforms ), + vertexShader: _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOShader.vertexShader, + fragmentShader: _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOShader.fragmentShader, + blending: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NoBlending + } ); + + this.ssaoMaterial.uniforms[ 'tDiffuse' ].value = this.beautyRenderTarget.texture; + this.ssaoMaterial.uniforms[ 'tNormal' ].value = this.normalRenderTarget.texture; + this.ssaoMaterial.uniforms[ 'tDepth' ].value = this.normalRenderTarget.depthTexture; + this.ssaoMaterial.uniforms[ 'tNoise' ].value = this.noiseTexture; + this.ssaoMaterial.uniforms[ 'kernel' ].value = this.kernel; + this.ssaoMaterial.uniforms[ 'cameraNear' ].value = this.camera.near; + this.ssaoMaterial.uniforms[ 'cameraFar' ].value = this.camera.far; + this.ssaoMaterial.uniforms[ 'resolution' ].value.set( this.width, this.height ); + this.ssaoMaterial.uniforms[ 'cameraProjectionMatrix' ].value.copy( this.camera.projectionMatrix ); + this.ssaoMaterial.uniforms[ 'cameraInverseProjectionMatrix' ].value.copy( this.camera.projectionMatrixInverse ); + + // normal material + + this.normalMaterial = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MeshNormalMaterial(); + this.normalMaterial.blending = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NoBlending; + + // blur material + + this.blurMaterial = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.ShaderMaterial( { + defines: Object.assign( {}, _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOBlurShader.defines ), + uniforms: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.UniformsUtils.clone( _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOBlurShader.uniforms ), + vertexShader: _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOBlurShader.vertexShader, + fragmentShader: _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAOBlurShader.fragmentShader + } ); + this.blurMaterial.uniforms[ 'tDiffuse' ].value = this.ssaoRenderTarget.texture; + this.blurMaterial.uniforms[ 'resolution' ].value.set( this.width, this.height ); + + // material for rendering the depth + + this.depthRenderMaterial = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.ShaderMaterial( { + defines: Object.assign( {}, _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAODepthShader.defines ), + uniforms: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.UniformsUtils.clone( _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAODepthShader.uniforms ), + vertexShader: _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAODepthShader.vertexShader, + fragmentShader: _shaders_SSAOShader_js__WEBPACK_IMPORTED_MODULE_3__.SSAODepthShader.fragmentShader, + blending: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NoBlending + } ); + this.depthRenderMaterial.uniforms[ 'tDepth' ].value = this.normalRenderTarget.depthTexture; + this.depthRenderMaterial.uniforms[ 'cameraNear' ].value = this.camera.near; + this.depthRenderMaterial.uniforms[ 'cameraFar' ].value = this.camera.far; + + // material for rendering the content of a render target + + this.copyMaterial = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.ShaderMaterial( { + uniforms: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.UniformsUtils.clone( _shaders_CopyShader_js__WEBPACK_IMPORTED_MODULE_4__.CopyShader.uniforms ), + vertexShader: _shaders_CopyShader_js__WEBPACK_IMPORTED_MODULE_4__.CopyShader.vertexShader, + fragmentShader: _shaders_CopyShader_js__WEBPACK_IMPORTED_MODULE_4__.CopyShader.fragmentShader, + transparent: true, + depthTest: false, + depthWrite: false, + blendSrc: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.DstColorFactor, + blendDst: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.ZeroFactor, + blendEquation: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.AddEquation, + blendSrcAlpha: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.DstAlphaFactor, + blendDstAlpha: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.ZeroFactor, + blendEquationAlpha: _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.AddEquation + } ); + + this.fsQuad = new _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_1__.Pass.FullScreenQuad( null ); + + this.originalClearColor = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Color(); + +}; + +SSAOPass.prototype = Object.assign( Object.create( _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_1__.Pass.prototype ), { + + constructor: SSAOPass, + + dispose: function () { + + // dispose render targets + + this.beautyRenderTarget.dispose(); + this.normalRenderTarget.dispose(); + this.ssaoRenderTarget.dispose(); + this.blurRenderTarget.dispose(); + + // dispose materials + + this.normalMaterial.dispose(); + this.blurMaterial.dispose(); + this.copyMaterial.dispose(); + this.depthRenderMaterial.dispose(); + + // dipsose full screen quad + + this.fsQuad.dispose(); + + }, + + render: function ( renderer, writeBuffer /*, readBuffer, deltaTime, maskActive */ ) { + + // render beauty + + renderer.setRenderTarget( this.beautyRenderTarget ); + renderer.clear(); + renderer.render( this.scene, this.camera ); + + // render normals and depth (honor only meshes, points and lines do not contribute to SSAO) + + this.overrideVisibility(); + this.renderOverride( renderer, this.normalMaterial, this.normalRenderTarget, 0x7777ff, 1.0 ); + this.restoreVisibility(); + + // render SSAO + + this.ssaoMaterial.uniforms[ 'kernelRadius' ].value = this.kernelRadius; + this.ssaoMaterial.uniforms[ 'minDistance' ].value = this.minDistance; + this.ssaoMaterial.uniforms[ 'maxDistance' ].value = this.maxDistance; + this.renderPass( renderer, this.ssaoMaterial, this.ssaoRenderTarget ); + + // render blur + + this.renderPass( renderer, this.blurMaterial, this.blurRenderTarget ); + + // output result to screen + + switch ( this.output ) { + + case SSAOPass.OUTPUT.SSAO: + + this.copyMaterial.uniforms[ 'tDiffuse' ].value = this.ssaoRenderTarget.texture; + this.copyMaterial.blending = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NoBlending; + this.renderPass( renderer, this.copyMaterial, this.renderToScreen ? null : writeBuffer ); + + break; + + case SSAOPass.OUTPUT.Blur: + + this.copyMaterial.uniforms[ 'tDiffuse' ].value = this.blurRenderTarget.texture; + this.copyMaterial.blending = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NoBlending; + this.renderPass( renderer, this.copyMaterial, this.renderToScreen ? null : writeBuffer ); + + break; + + case SSAOPass.OUTPUT.Beauty: + + this.copyMaterial.uniforms[ 'tDiffuse' ].value = this.beautyRenderTarget.texture; + this.copyMaterial.blending = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NoBlending; + this.renderPass( renderer, this.copyMaterial, this.renderToScreen ? null : writeBuffer ); + + break; + + case SSAOPass.OUTPUT.Depth: + + this.renderPass( renderer, this.depthRenderMaterial, this.renderToScreen ? null : writeBuffer ); + + break; + + case SSAOPass.OUTPUT.Normal: + + this.copyMaterial.uniforms[ 'tDiffuse' ].value = this.normalRenderTarget.texture; + this.copyMaterial.blending = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NoBlending; + this.renderPass( renderer, this.copyMaterial, this.renderToScreen ? null : writeBuffer ); + + break; + + case SSAOPass.OUTPUT.Default: + + this.copyMaterial.uniforms[ 'tDiffuse' ].value = this.beautyRenderTarget.texture; + this.copyMaterial.blending = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.NoBlending; + this.renderPass( renderer, this.copyMaterial, this.renderToScreen ? null : writeBuffer ); + + this.copyMaterial.uniforms[ 'tDiffuse' ].value = this.blurRenderTarget.texture; + this.copyMaterial.blending = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.CustomBlending; + this.renderPass( renderer, this.copyMaterial, this.renderToScreen ? null : writeBuffer ); + + break; + + default: + console.warn( 'THREE.SSAOPass: Unknown output type.' ); + + } + + }, + + renderPass: function ( renderer, passMaterial, renderTarget, clearColor, clearAlpha ) { + + // save original state + renderer.getClearColor( this.originalClearColor ); + var originalClearAlpha = renderer.getClearAlpha(); + var originalAutoClear = renderer.autoClear; + + renderer.setRenderTarget( renderTarget ); + + // setup pass state + renderer.autoClear = false; + if ( ( clearColor !== undefined ) && ( clearColor !== null ) ) { + + renderer.setClearColor( clearColor ); + renderer.setClearAlpha( clearAlpha || 0.0 ); + renderer.clear(); + + } + + this.fsQuad.material = passMaterial; + this.fsQuad.render( renderer ); + + // restore original state + renderer.autoClear = originalAutoClear; + renderer.setClearColor( this.originalClearColor ); + renderer.setClearAlpha( originalClearAlpha ); + + }, + + renderOverride: function ( renderer, overrideMaterial, renderTarget, clearColor, clearAlpha ) { + + renderer.getClearColor( this.originalClearColor ); + var originalClearAlpha = renderer.getClearAlpha(); + var originalAutoClear = renderer.autoClear; + + renderer.setRenderTarget( renderTarget ); + renderer.autoClear = false; + + clearColor = overrideMaterial.clearColor || clearColor; + clearAlpha = overrideMaterial.clearAlpha || clearAlpha; + + if ( ( clearColor !== undefined ) && ( clearColor !== null ) ) { + + renderer.setClearColor( clearColor ); + renderer.setClearAlpha( clearAlpha || 0.0 ); + renderer.clear(); + + } + + this.scene.overrideMaterial = overrideMaterial; + renderer.render( this.scene, this.camera ); + this.scene.overrideMaterial = null; + + // restore original state + + renderer.autoClear = originalAutoClear; + renderer.setClearColor( this.originalClearColor ); + renderer.setClearAlpha( originalClearAlpha ); + + }, + + setSize: function ( width, height ) { + + this.width = width; + this.height = height; + + this.beautyRenderTarget.setSize( width, height ); + this.ssaoRenderTarget.setSize( width, height ); + this.normalRenderTarget.setSize( width, height ); + this.blurRenderTarget.setSize( width, height ); + + this.ssaoMaterial.uniforms[ 'resolution' ].value.set( width, height ); + this.ssaoMaterial.uniforms[ 'cameraProjectionMatrix' ].value.copy( this.camera.projectionMatrix ); + this.ssaoMaterial.uniforms[ 'cameraInverseProjectionMatrix' ].value.copy( this.camera.projectionMatrixInverse ); + + this.blurMaterial.uniforms[ 'resolution' ].value.set( width, height ); + + }, + + generateSampleKernel: function () { + + var kernelSize = this.kernelSize; + var kernel = this.kernel; + + for ( var i = 0; i < kernelSize; i ++ ) { + + var sample = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + sample.x = ( Math.random() * 2 ) - 1; + sample.y = ( Math.random() * 2 ) - 1; + sample.z = Math.random(); + + sample.normalize(); + + var scale = i / kernelSize; + scale = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.MathUtils.lerp( 0.1, 1, scale * scale ); + sample.multiplyScalar( scale ); + + kernel.push( sample ); + + } + + }, + + generateRandomKernelRotations: function () { + + var width = 4, height = 4; + + if ( _math_SimplexNoise_js__WEBPACK_IMPORTED_MODULE_2__.SimplexNoise === undefined ) { + + console.error( 'THREE.SSAOPass: The pass relies on SimplexNoise.' ); + + } + + var simplex = new _math_SimplexNoise_js__WEBPACK_IMPORTED_MODULE_2__.SimplexNoise(); + + var size = width * height; + var data = new Float32Array( size * 4 ); + + for ( var i = 0; i < size; i ++ ) { + + var stride = i * 4; + + var x = ( Math.random() * 2 ) - 1; + var y = ( Math.random() * 2 ) - 1; + var z = 0; + + var noise = simplex.noise3d( x, y, z ); + + data[ stride ] = noise; + data[ stride + 1 ] = noise; + data[ stride + 2 ] = noise; + data[ stride + 3 ] = 1; + + } + + this.noiseTexture = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.DataTexture( data, width, height, _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.RGBAFormat, _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.FloatType ); + this.noiseTexture.wrapS = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.RepeatWrapping; + this.noiseTexture.wrapT = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.RepeatWrapping; + + }, + + overrideVisibility: function () { + + var scene = this.scene; + var cache = this._visibilityCache; + + scene.traverse( function ( object ) { + + cache.set( object, object.visible ); + + if ( object.isPoints || object.isLine ) object.visible = false; + + } ); + + }, + + restoreVisibility: function () { + + var scene = this.scene; + var cache = this._visibilityCache; + + scene.traverse( function ( object ) { + + var visible = cache.get( object ); + object.visible = visible; + + } ); + + cache.clear(); + + } + +} ); + +SSAOPass.OUTPUT = { + 'Default': 0, + 'SSAO': 1, + 'Blur': 2, + 'Beauty': 3, + 'Depth': 4, + 'Normal': 5 +}; + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/postprocessing/ShaderPass.js": +/*!**********************************************************************!*\ + !*** ./node_modules/three/examples/jsm/postprocessing/ShaderPass.js ***! + \**********************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "ShaderPass": () => /* binding */ ShaderPass +/* harmony export */ }); +/* harmony import */ var _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../../../build/three.module.js */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../postprocessing/Pass.js */ "./node_modules/three/examples/jsm/postprocessing/Pass.js"); + + + +var ShaderPass = function ( shader, textureID ) { + + _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_1__.Pass.call( this ); + + this.textureID = ( textureID !== undefined ) ? textureID : 'tDiffuse'; + + if ( shader instanceof _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.ShaderMaterial ) { + + this.uniforms = shader.uniforms; + + this.material = shader; + + } else if ( shader ) { + + this.uniforms = _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.UniformsUtils.clone( shader.uniforms ); + + this.material = new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.ShaderMaterial( { + + defines: Object.assign( {}, shader.defines ), + uniforms: this.uniforms, + vertexShader: shader.vertexShader, + fragmentShader: shader.fragmentShader + + } ); + + } + + this.fsQuad = new _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_1__.Pass.FullScreenQuad( this.material ); + +}; + +ShaderPass.prototype = Object.assign( Object.create( _postprocessing_Pass_js__WEBPACK_IMPORTED_MODULE_1__.Pass.prototype ), { + + constructor: ShaderPass, + + render: function ( renderer, writeBuffer, readBuffer /*, deltaTime, maskActive */ ) { + + if ( this.uniforms[ this.textureID ] ) { + + this.uniforms[ this.textureID ].value = readBuffer.texture; + + } + + this.fsQuad.material = this.material; + + if ( this.renderToScreen ) { + + renderer.setRenderTarget( null ); + this.fsQuad.render( renderer ); + + } else { + + renderer.setRenderTarget( writeBuffer ); + // TODO: Avoid using autoClear properties, see https://github.com/mrdoob/three.js/pull/15571#issuecomment-465669600 + if ( this.clear ) renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil ); + this.fsQuad.render( renderer ); + + } + + } + +} ); + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/shaders/CopyShader.js": +/*!***************************************************************!*\ + !*** ./node_modules/three/examples/jsm/shaders/CopyShader.js ***! + \***************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "CopyShader": () => /* binding */ CopyShader +/* harmony export */ }); +/** + * Full-screen textured quad shader + */ + +var CopyShader = { + + uniforms: { + + 'tDiffuse': { value: null }, + 'opacity': { value: 1.0 } + + }, + + vertexShader: [ + + 'varying vec2 vUv;', + + 'void main() {', + + ' vUv = uv;', + ' gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );', + + '}' + + ].join( '\n' ), + + fragmentShader: [ + + 'uniform float opacity;', + + 'uniform sampler2D tDiffuse;', + + 'varying vec2 vUv;', + + 'void main() {', + + ' vec4 texel = texture2D( tDiffuse, vUv );', + ' gl_FragColor = opacity * texel;', + + '}' + + ].join( '\n' ) + +}; + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/shaders/SSAOShader.js": +/*!***************************************************************!*\ + !*** ./node_modules/three/examples/jsm/shaders/SSAOShader.js ***! + \***************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "SSAOShader": () => /* binding */ SSAOShader, +/* harmony export */ "SSAODepthShader": () => /* binding */ SSAODepthShader, +/* harmony export */ "SSAOBlurShader": () => /* binding */ SSAOBlurShader +/* harmony export */ }); +/* harmony import */ var _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../../../build/three.module.js */ "./node_modules/three/build/three.module.js"); + + +/** + * References: + * http://john-chapman-graphics.blogspot.com/2013/01/ssao-tutorial.html + * https://learnopengl.com/Advanced-Lighting/SSAO + * https://github.com/McNopper/OpenGL/blob/master/Example28/shader/ssao.frag.glsl + */ + +var SSAOShader = { + + defines: { + 'PERSPECTIVE_CAMERA': 1, + 'KERNEL_SIZE': 32 + }, + + uniforms: { + + 'tDiffuse': { value: null }, + 'tNormal': { value: null }, + 'tDepth': { value: null }, + 'tNoise': { value: null }, + 'kernel': { value: null }, + 'cameraNear': { value: null }, + 'cameraFar': { value: null }, + 'resolution': { value: new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2() }, + 'cameraProjectionMatrix': { value: new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Matrix4() }, + 'cameraInverseProjectionMatrix': { value: new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Matrix4() }, + 'kernelRadius': { value: 8 }, + 'minDistance': { value: 0.005 }, + 'maxDistance': { value: 0.05 }, + + }, + + vertexShader: [ + + 'varying vec2 vUv;', + + 'void main() {', + + ' vUv = uv;', + + ' gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );', + + '}' + + ].join( '\n' ), + + fragmentShader: [ + + 'uniform sampler2D tDiffuse;', + 'uniform sampler2D tNormal;', + 'uniform sampler2D tDepth;', + 'uniform sampler2D tNoise;', + + 'uniform vec3 kernel[ KERNEL_SIZE ];', + + 'uniform vec2 resolution;', + + 'uniform float cameraNear;', + 'uniform float cameraFar;', + 'uniform mat4 cameraProjectionMatrix;', + 'uniform mat4 cameraInverseProjectionMatrix;', + + 'uniform float kernelRadius;', + 'uniform float minDistance;', // avoid artifacts caused by neighbour fragments with minimal depth difference + 'uniform float maxDistance;', // avoid the influence of fragments which are too far away + + 'varying vec2 vUv;', + + '#include ', + + 'float getDepth( const in vec2 screenPosition ) {', + + ' return texture2D( tDepth, screenPosition ).x;', + + '}', + + 'float getLinearDepth( const in vec2 screenPosition ) {', + + ' #if PERSPECTIVE_CAMERA == 1', + + ' float fragCoordZ = texture2D( tDepth, screenPosition ).x;', + ' float viewZ = perspectiveDepthToViewZ( fragCoordZ, cameraNear, cameraFar );', + ' return viewZToOrthographicDepth( viewZ, cameraNear, cameraFar );', + + ' #else', + + ' return texture2D( tDepth, screenPosition ).x;', + + ' #endif', + + '}', + + 'float getViewZ( const in float depth ) {', + + ' #if PERSPECTIVE_CAMERA == 1', + + ' return perspectiveDepthToViewZ( depth, cameraNear, cameraFar );', + + ' #else', + + ' return orthographicDepthToViewZ( depth, cameraNear, cameraFar );', + + ' #endif', + + '}', + + 'vec3 getViewPosition( const in vec2 screenPosition, const in float depth, const in float viewZ ) {', + + ' float clipW = cameraProjectionMatrix[2][3] * viewZ + cameraProjectionMatrix[3][3];', + + ' vec4 clipPosition = vec4( ( vec3( screenPosition, depth ) - 0.5 ) * 2.0, 1.0 );', + + ' clipPosition *= clipW; // unprojection.', + + ' return ( cameraInverseProjectionMatrix * clipPosition ).xyz;', + + '}', + + 'vec3 getViewNormal( const in vec2 screenPosition ) {', + + ' return unpackRGBToNormal( texture2D( tNormal, screenPosition ).xyz );', + + '}', + + 'void main() {', + + ' float depth = getDepth( vUv );', + ' float viewZ = getViewZ( depth );', + + ' vec3 viewPosition = getViewPosition( vUv, depth, viewZ );', + ' vec3 viewNormal = getViewNormal( vUv );', + + ' vec2 noiseScale = vec2( resolution.x / 4.0, resolution.y / 4.0 );', + ' vec3 random = texture2D( tNoise, vUv * noiseScale ).xyz;', + + // compute matrix used to reorient a kernel vector + + ' vec3 tangent = normalize( random - viewNormal * dot( random, viewNormal ) );', + ' vec3 bitangent = cross( viewNormal, tangent );', + ' mat3 kernelMatrix = mat3( tangent, bitangent, viewNormal );', + + ' float occlusion = 0.0;', + + ' for ( int i = 0; i < KERNEL_SIZE; i ++ ) {', + + ' vec3 sampleVector = kernelMatrix * kernel[ i ];', // reorient sample vector in view space + ' vec3 samplePoint = viewPosition + ( sampleVector * kernelRadius );', // calculate sample point + + ' vec4 samplePointNDC = cameraProjectionMatrix * vec4( samplePoint, 1.0 );', // project point and calculate NDC + ' samplePointNDC /= samplePointNDC.w;', + + ' vec2 samplePointUv = samplePointNDC.xy * 0.5 + 0.5;', // compute uv coordinates + + ' float realDepth = getLinearDepth( samplePointUv );', // get linear depth from depth texture + ' float sampleDepth = viewZToOrthographicDepth( samplePoint.z, cameraNear, cameraFar );', // compute linear depth of the sample view Z value + ' float delta = sampleDepth - realDepth;', + + ' if ( delta > minDistance && delta < maxDistance ) {', // if fragment is before sample point, increase occlusion + + ' occlusion += 1.0;', + + ' }', + + ' }', + + ' occlusion = clamp( occlusion / float( KERNEL_SIZE ), 0.0, 1.0 );', + + ' gl_FragColor = vec4( vec3( 1.0 - occlusion ), 1.0 );', + + '}' + + ].join( '\n' ) + +}; + +var SSAODepthShader = { + + defines: { + 'PERSPECTIVE_CAMERA': 1 + }, + + uniforms: { + + 'tDepth': { value: null }, + 'cameraNear': { value: null }, + 'cameraFar': { value: null }, + + }, + + vertexShader: [ + + 'varying vec2 vUv;', + + 'void main() {', + + ' vUv = uv;', + ' gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );', + + '}' + + ].join( '\n' ), + + fragmentShader: [ + + 'uniform sampler2D tDepth;', + + 'uniform float cameraNear;', + 'uniform float cameraFar;', + + 'varying vec2 vUv;', + + '#include ', + + 'float getLinearDepth( const in vec2 screenPosition ) {', + + ' #if PERSPECTIVE_CAMERA == 1', + + ' float fragCoordZ = texture2D( tDepth, screenPosition ).x;', + ' float viewZ = perspectiveDepthToViewZ( fragCoordZ, cameraNear, cameraFar );', + ' return viewZToOrthographicDepth( viewZ, cameraNear, cameraFar );', + + ' #else', + + ' return texture2D( tDepth, screenPosition ).x;', + + ' #endif', + + '}', + + 'void main() {', + + ' float depth = getLinearDepth( vUv );', + ' gl_FragColor = vec4( vec3( 1.0 - depth ), 1.0 );', + + '}' + + ].join( '\n' ) + +}; + +var SSAOBlurShader = { + + uniforms: { + + 'tDiffuse': { value: null }, + 'resolution': { value: new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2() } + + }, + + vertexShader: [ + + 'varying vec2 vUv;', + + 'void main() {', + + ' vUv = uv;', + ' gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );', + + '}' + + ].join( '\n' ), + + fragmentShader: [ + + 'uniform sampler2D tDiffuse;', + + 'uniform vec2 resolution;', + + 'varying vec2 vUv;', + + 'void main() {', + + ' vec2 texelSize = ( 1.0 / resolution );', + ' float result = 0.0;', + + ' for ( int i = - 2; i <= 2; i ++ ) {', + + ' for ( int j = - 2; j <= 2; j ++ ) {', + + ' vec2 offset = ( vec2( float( i ), float( j ) ) ) * texelSize;', + ' result += texture2D( tDiffuse, vUv + offset ).r;', + + ' }', + + ' }', + + ' gl_FragColor = vec4( vec3( result / ( 5.0 * 5.0 ) ), 1.0 );', + + '}' + + ].join( '\n' ) + +}; + + + + +/***/ }), + +/***/ "./node_modules/three/examples/jsm/shaders/SobelOperatorShader.js": +/*!************************************************************************!*\ + !*** ./node_modules/three/examples/jsm/shaders/SobelOperatorShader.js ***! + \************************************************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "SobelOperatorShader": () => /* binding */ SobelOperatorShader +/* harmony export */ }); +/* harmony import */ var _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../../../build/three.module.js */ "./node_modules/three/build/three.module.js"); + + +/** + * Sobel Edge Detection (see https://youtu.be/uihBwtPIBxM) + * + * As mentioned in the video the Sobel operator expects a grayscale image as input. + * + */ + +var SobelOperatorShader = { + + uniforms: { + + 'tDiffuse': { value: null }, + 'resolution': { value: new _build_three_module_js__WEBPACK_IMPORTED_MODULE_0__.Vector2() } + + }, + + vertexShader: [ + + 'varying vec2 vUv;', + + 'void main() {', + + ' vUv = uv;', + + ' gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );', + + '}' + + ].join( '\n' ), + + fragmentShader: [ + + 'uniform sampler2D tDiffuse;', + 'uniform vec2 resolution;', + 'varying vec2 vUv;', + + 'void main() {', + + ' vec2 texel = vec2( 1.0 / resolution.x, 1.0 / resolution.y );', + + // kernel definition (in glsl matrices are filled in column-major order) + + ' const mat3 Gx = mat3( -1, -2, -1, 0, 0, 0, 1, 2, 1 );', // x direction kernel + ' const mat3 Gy = mat3( -1, 0, 1, -2, 0, 2, -1, 0, 1 );', // y direction kernel + + // fetch the 3x3 neighbourhood of a fragment + + // first column + + ' float tx0y0 = texture2D( tDiffuse, vUv + texel * vec2( -1, -1 ) ).r;', + ' float tx0y1 = texture2D( tDiffuse, vUv + texel * vec2( -1, 0 ) ).r;', + ' float tx0y2 = texture2D( tDiffuse, vUv + texel * vec2( -1, 1 ) ).r;', + + // second column + + ' float tx1y0 = texture2D( tDiffuse, vUv + texel * vec2( 0, -1 ) ).r;', + ' float tx1y1 = texture2D( tDiffuse, vUv + texel * vec2( 0, 0 ) ).r;', + ' float tx1y2 = texture2D( tDiffuse, vUv + texel * vec2( 0, 1 ) ).r;', + + // third column + + ' float tx2y0 = texture2D( tDiffuse, vUv + texel * vec2( 1, -1 ) ).r;', + ' float tx2y1 = texture2D( tDiffuse, vUv + texel * vec2( 1, 0 ) ).r;', + ' float tx2y2 = texture2D( tDiffuse, vUv + texel * vec2( 1, 1 ) ).r;', + + // gradient value in x direction + + ' float valueGx = Gx[0][0] * tx0y0 + Gx[1][0] * tx1y0 + Gx[2][0] * tx2y0 + ', + ' Gx[0][1] * tx0y1 + Gx[1][1] * tx1y1 + Gx[2][1] * tx2y1 + ', + ' Gx[0][2] * tx0y2 + Gx[1][2] * tx1y2 + Gx[2][2] * tx2y2; ', + + // gradient value in y direction + + ' float valueGy = Gy[0][0] * tx0y0 + Gy[1][0] * tx1y0 + Gy[2][0] * tx2y0 + ', + ' Gy[0][1] * tx0y1 + Gy[1][1] * tx1y1 + Gy[2][1] * tx2y1 + ', + ' Gy[0][2] * tx0y2 + Gy[1][2] * tx1y2 + Gy[2][2] * tx2y2; ', + + // magnitute of the total gradient + + ' float G = sqrt( ( valueGx * valueGx ) + ( valueGy * valueGy ) );', + + ' gl_FragColor = vec4( vec3( G ), 1 );', + + '}' + + ].join( '\n' ) + +}; + + + + +/***/ }) + +/******/ }); +/************************************************************************/ +/******/ // The module cache +/******/ var __webpack_module_cache__ = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ // Check if module is in cache +/******/ if(__webpack_module_cache__[moduleId]) { +/******/ return __webpack_module_cache__[moduleId].exports; +/******/ } +/******/ // Create a new module (and put it into the cache) +/******/ var module = __webpack_module_cache__[moduleId] = { +/******/ // no module.id needed +/******/ // no module.loaded needed +/******/ exports: {} +/******/ }; +/******/ +/******/ // Execute the module function +/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__); +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/************************************************************************/ +/******/ /* webpack/runtime/define property getters */ +/******/ (() => { +/******/ // define getter functions for harmony exports +/******/ __webpack_require__.d = (exports, definition) => { +/******/ for(var key in definition) { +/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) { +/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] }); +/******/ } +/******/ } +/******/ }; +/******/ })(); +/******/ +/******/ /* webpack/runtime/hasOwnProperty shorthand */ +/******/ (() => { +/******/ __webpack_require__.o = (obj, prop) => Object.prototype.hasOwnProperty.call(obj, prop) +/******/ })(); +/******/ +/******/ /* webpack/runtime/make namespace object */ +/******/ (() => { +/******/ // define __esModule on exports +/******/ __webpack_require__.r = (exports) => { +/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) { +/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' }); +/******/ } +/******/ Object.defineProperty(exports, '__esModule', { value: true }); +/******/ }; +/******/ })(); +/******/ +/************************************************************************/ +/******/ // module exports must be returned from runtime so entry inlining is disabled +/******/ // startup +/******/ // Load entry module and return exports +/******/ return __webpack_require__("./src/index.js"); +/******/ })() +; +}); +//# sourceMappingURL=Speckle.js.map \ No newline at end of file diff --git a/packages/viewer/example/demo.js b/packages/viewer/example/demo.js new file mode 100644 index 000000000..e60a8cf9c --- /dev/null +++ b/packages/viewer/example/demo.js @@ -0,0 +1,69253 @@ +/******/ (() => { // webpackBootstrap +/******/ var __webpack_modules__ = ({ + +/***/ "./node_modules/ansi-html/index.js": +/*!*****************************************!*\ + !*** ./node_modules/ansi-html/index.js ***! + \*****************************************/ +/***/ ((module) => { + +"use strict"; + + +module.exports = ansiHTML + +// Reference to https://github.com/sindresorhus/ansi-regex +var _regANSI = /(?:(?:\u001b\[)|\u009b)(?:(?:[0-9]{1,3})?(?:(?:;[0-9]{0,3})*)?[A-M|f-m])|\u001b[A-M]/ + +var _defColors = { + reset: ['fff', '000'], // [FOREGROUD_COLOR, BACKGROUND_COLOR] + black: '000', + red: 'ff0000', + green: '209805', + yellow: 'e8bf03', + blue: '0000ff', + magenta: 'ff00ff', + cyan: '00ffee', + lightgrey: 'f0f0f0', + darkgrey: '888' +} +var _styles = { + 30: 'black', + 31: 'red', + 32: 'green', + 33: 'yellow', + 34: 'blue', + 35: 'magenta', + 36: 'cyan', + 37: 'lightgrey' +} +var _openTags = { + '1': 'font-weight:bold', // bold + '2': 'opacity:0.5', // dim + '3': '', // italic + '4': '', // underscore + '8': 'display:none', // hidden + '9': '' // delete +} +var _closeTags = { + '23': '', // reset italic + '24': '', // reset underscore + '29': '' // reset delete +} + +;[0, 21, 22, 27, 28, 39, 49].forEach(function (n) { + _closeTags[n] = '' +}) + +/** + * Converts text with ANSI color codes to HTML markup. + * @param {String} text + * @returns {*} + */ +function ansiHTML (text) { + // Returns the text if the string has no ANSI escape code. + if (!_regANSI.test(text)) { + return text + } + + // Cache opened sequence. + var ansiCodes = [] + // Replace with markup. + var ret = text.replace(/\033\[(\d+)*m/g, function (match, seq) { + var ot = _openTags[seq] + if (ot) { + // If current sequence has been opened, close it. + if (!!~ansiCodes.indexOf(seq)) { // eslint-disable-line no-extra-boolean-cast + ansiCodes.pop() + return '' + } + // Open tag. + ansiCodes.push(seq) + return ot[0] === '<' ? ot : '' + } + + var ct = _closeTags[seq] + if (ct) { + // Pop sequence + ansiCodes.pop() + return ct + } + return '' + }) + + // Make sure tags are closed. + var l = ansiCodes.length + ;(l > 0) && (ret += Array(l + 1).join('')) + + return ret +} + +/** + * Customize colors. + * @param {Object} colors reference to _defColors + */ +ansiHTML.setColors = function (colors) { + if (typeof colors !== 'object') { + throw new Error('`colors` parameter must be an Object.') + } + + var _finalColors = {} + for (var key in _defColors) { + var hex = colors.hasOwnProperty(key) ? colors[key] : null + if (!hex) { + _finalColors[key] = _defColors[key] + continue + } + if ('reset' === key) { + if (typeof hex === 'string') { + hex = [hex] + } + if (!Array.isArray(hex) || hex.length === 0 || hex.some(function (h) { + return typeof h !== 'string' + })) { + throw new Error('The value of `' + key + '` property must be an Array and each item could only be a hex string, e.g.: FF0000') + } + var defHexColor = _defColors[key] + if (!hex[0]) { + hex[0] = defHexColor[0] + } + if (hex.length === 1 || !hex[1]) { + hex = [hex[0]] + hex.push(defHexColor[1]) + } + + hex = hex.slice(0, 2) + } else if (typeof hex !== 'string') { + throw new Error('The value of `' + key + '` property must be a hex string, e.g.: FF0000') + } + _finalColors[key] = hex + } + _setTags(_finalColors) +} + +/** + * Reset colors. + */ +ansiHTML.reset = function () { + _setTags(_defColors) +} + +/** + * Expose tags, including open and close. + * @type {Object} + */ +ansiHTML.tags = {} + +if (Object.defineProperty) { + Object.defineProperty(ansiHTML.tags, 'open', { + get: function () { return _openTags } + }) + Object.defineProperty(ansiHTML.tags, 'close', { + get: function () { return _closeTags } + }) +} else { + ansiHTML.tags.open = _openTags + ansiHTML.tags.close = _closeTags +} + +function _setTags (colors) { + // reset all + _openTags['0'] = 'font-weight:normal;opacity:1;color:#' + colors.reset[0] + ';background:#' + colors.reset[1] + // inverse + _openTags['7'] = 'color:#' + colors.reset[1] + ';background:#' + colors.reset[0] + // dark grey + _openTags['90'] = 'color:#' + colors.darkgrey + + for (var code in _styles) { + var color = _styles[code] + var oriColor = colors[color] || '000' + _openTags[code] = 'color:#' + oriColor + code = parseInt(code) + _openTags[(code + 10).toString()] = 'background:#' + oriColor + } +} + +ansiHTML.reset() + + +/***/ }), + +/***/ "./node_modules/ansi-regex/index.js": +/*!******************************************!*\ + !*** ./node_modules/ansi-regex/index.js ***! + \******************************************/ +/***/ ((module) => { + +"use strict"; + +module.exports = function () { + return /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-PRZcf-nqry=><]/g; +}; + + +/***/ }), + +/***/ "./src/app.js": +/*!********************!*\ + !*** ./src/app.js ***! + \********************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony import */ var _modules_Viewer__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./modules/Viewer */ "./src/modules/Viewer.js"); +/* harmony import */ var _modules_ObjectLoader__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./modules/ObjectLoader */ "./src/modules/ObjectLoader.js"); +/* harmony import */ var _modules_Converter__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./modules/Converter */ "./src/modules/Converter.js"); +function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } + +function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } + +function _asyncIterator(iterable) { var method; if (typeof Symbol !== "undefined") { if (Symbol.asyncIterator) { method = iterable[Symbol.asyncIterator]; if (method != null) return method.call(iterable); } if (Symbol.iterator) { method = iterable[Symbol.iterator]; if (method != null) return method.call(iterable); } } throw new TypeError("Object is not async iterable"); } + + + + +var v = new _modules_Viewer__WEBPACK_IMPORTED_MODULE_0__.default({ + container: document.getElementById('renderer') +}); +v.on('load-progress', args => console.log(args)); +window.v = v; +var token = 'e844747dc6f6b0b5c7d5fbd82d66de6e9529531d75'; + +window.LoadData = /*#__PURE__*/function () { + var _LoadData = _asyncToGenerator(function* (url) { + url = url || document.getElementById('objectUrlInput').value; + yield v.loadObject(url, token); + }); + + function LoadData(_x) { + return _LoadData.apply(this, arguments); + } + + return LoadData; +}(); + +window.LoadDataOld = /*#__PURE__*/function () { + var _LoadData2 = _asyncToGenerator(function* (id) { + // v.sceneManager.removeAllObjects() + id = id || document.getElementById('objectIdInput').value; + var loader = new _modules_ObjectLoader__WEBPACK_IMPORTED_MODULE_1__.default({ + serverUrl: 'https://staging.speckle.dev', + streamId: '5486aa9fc7', + token, + objectId: id + }); + var converter = new _modules_Converter__WEBPACK_IMPORTED_MODULE_2__.default(loader); + var first = true; // Note: it's important the loop continues to load. + + var _iteratorNormalCompletion = true; + var _didIteratorError = false; + + var _iteratorError; + + try { + var _loop = function _loop() { + var obj = _value; + + if (first) { + _asyncToGenerator(function* () { + yield converter.traverseAndConvert(obj, o => v.sceneManager.addObject(o)); + })(); + + first = false; + } + }; + + for (var _iterator = _asyncIterator(loader.getObjectIterator()), _step, _value; _step = yield _iterator.next(), _iteratorNormalCompletion = _step.done, _value = yield _step.value, !_iteratorNormalCompletion; _iteratorNormalCompletion = true) { + _loop(); + } + } catch (err) { + _didIteratorError = true; + _iteratorError = err; + } finally { + try { + if (!_iteratorNormalCompletion && _iterator.return != null) { + yield _iterator.return(); + } + } finally { + if (_didIteratorError) { + throw _iteratorError; + } + } + } + }); + + function LoadData(_x2) { + return _LoadData2.apply(this, arguments); + } + + return LoadData; +}(); + +/***/ }), + +/***/ "./src/modules/Converter.js": +/*!**********************************!*\ + !*** ./src/modules/Converter.js ***! + \**********************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ Coverter +/* harmony export */ }); +/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var _ObjectWrapper__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./ObjectWrapper */ "./src/modules/ObjectWrapper.js"); +/* harmony import */ var _Units__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./Units */ "./src/modules/Units.js"); +function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } + +function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + + + + +/** + * Utility class providing some top level conversion methods. + */ + +var Coverter = /*#__PURE__*/function () { + function Coverter(objectLoader) { + _classCallCheck(this, Coverter); + + if (!objectLoader) { + console.warn('Converter initialized without a corresponding object loader. Any objects that include references will throw errors.'); + } + + this.objectLoader = objectLoader; + } + /** + * If the object is convertable (there is a direct conversion routine), it will invoke the callback with the conversion result. + * If the object is not convertable, it will recursively iterate through it (arrays & objects) and invoke the callback on any postive conversion result. + * @param {[type]} obj [description] + * @param {Function} callback [description] + * @return {[type]} [description] + */ + + + _createClass(Coverter, [{ + key: "traverseAndConvert", + value: function () { + var _traverseAndConvert = _asyncToGenerator(function* (obj, callback) { + var _this = this; + + // Exit on primitives (string, ints, bools, bigints, etc.) + if (typeof obj !== 'object') return; + if (obj.referencedId) obj = yield this.resolveReference(obj); // Traverse arrays, and exit early (we don't want to iterate through many numbers) + + if (Array.isArray(obj)) { + var _loop = function _loop(element) { + if (typeof element !== 'object') return { + v: void 0 + }; // exit early for non-object based arrays + + _asyncToGenerator(function* () { + return yield _this.traverseAndConvert(element, callback); + })(); //iife so we don't block + + }; + + for (var element of obj) { + var _ret = _loop(element); + + if (typeof _ret === "object") return _ret.v; + } + } // If we can convert it, we should invoke the respective conversion routine. + + + var type = this.getSpeckleType(obj); + + if (this[type + "ToBufferGeometry"]) { + try { + callback(yield this[type + "ToBufferGeometry"](obj.data || obj)); + return; + } catch (e) { + console.warn("(Traversing - direct) Failed to convert " + type + " with id: " + obj.id); + } + } + + var target = obj.data || obj; // Check if the object has a display value of sorts + + var displayValue = target['displayMesh'] || target['@displayMesh'] || target['displayValue'] || target['@displayValue']; + + if (displayValue) { + displayValue = yield this.resolveReference(displayValue); + if (!displayValue.units) displayValue.units = obj.units; + + try { + var { + bufferGeometry + } = yield this.convert(displayValue); + callback(new _ObjectWrapper__WEBPACK_IMPORTED_MODULE_1__.default(bufferGeometry, obj)); // use the parent's metadata! + // return // returning here is faster but excludes objects that have a display value and displayable children (ie, a wall with windows) + } catch (e) { + console.warn("(Traversing) Failed to convert obj with id: " + obj.id); + } + } // Last attempt: iterate through all object keys and see if we can display anything! + // traverses the object in case there's any sub-objects we can convert. + + + var _loop2 = function _loop2(prop) { + if (typeof target[prop] !== 'object') return "continue"; + + _asyncToGenerator(function* () { + return yield _this.traverseAndConvert(target[prop], callback); + })(); //iife so we don't block + + }; + + for (var prop in target) { + var _ret2 = _loop2(prop); + + if (_ret2 === "continue") continue; + } + }); + + function traverseAndConvert(_x, _x2) { + return _traverseAndConvert.apply(this, arguments); + } + + return traverseAndConvert; + }() + /** + * Directly converts an object and invokes the callback with the the conversion result. + * @param {[type]} obj [description] + * @param {Function} callback [description] + * @return {[type]} [description] + */ + + }, { + key: "convert", + value: function () { + var _convert = _asyncToGenerator(function* (obj) { + if (obj.referencedId) obj = yield this.resolveReference(obj); + + try { + var type = this.getSpeckleType(obj); + + if (this[type + "ToBufferGeometry"]) { + return yield this[type + "ToBufferGeometry"](obj.data || obj); + } else return null; + } catch (e) { + console.warn("(Direct convert) Failed to convert object with id: " + obj.id); + throw e; + } + }); + + function convert(_x3) { + return _convert.apply(this, arguments); + } + + return convert; + }() + /** + * Takes an array composed of chunked references and dechunks it. + * @param {[type]} arr [description] + * @return {[type]} [description] + */ + + }, { + key: "dechunk", + value: function () { + var _dechunk = _asyncToGenerator(function* (arr) { + if (!arr) return arr; // Handles pre-chunking objects, or arrs that have not been chunked + + if (!arr[0].referencedId) return arr; + var dechunked = []; + + for (var ref of arr) { + var real = yield this.objectLoader.getObject(ref.referencedId); + dechunked.push(...real.data); + } + + return dechunked; + }); + + function dechunk(_x4) { + return _dechunk.apply(this, arguments); + } + + return dechunk; + }() + /** + * Resolves an object reference by waiting for the loader to load it up. + * @param {[type]} obj [description] + * @return {[type]} [description] + */ + + }, { + key: "resolveReference", + value: function () { + var _resolveReference = _asyncToGenerator(function* (obj) { + if (obj.referencedId) return yield this.objectLoader.getObject(obj.referencedId);else return obj; + }); + + function resolveReference(_x5) { + return _resolveReference.apply(this, arguments); + } + + return resolveReference; + }() + /** + * Gets the speckle type of an object in various scenarios. + * @param {[type]} obj [description] + * @return {[type]} [description] + */ + + }, { + key: "getSpeckleType", + value: function getSpeckleType(obj) { + var type = 'Base'; + if (obj.data) type = obj.data.speckle_type ? obj.data.speckle_type.split('.').reverse()[0] : type;else type = obj.speckle_type ? obj.speckle_type.split('.').reverse()[0] : type; + return type; + } + }, { + key: "BrepToBufferGeometry", + value: function () { + var _BrepToBufferGeometry = _asyncToGenerator(function* (obj) { + try { + if (!obj) return; + var { + bufferGeometry + } = yield this.MeshToBufferGeometry(yield this.resolveReference(obj.displayValue || obj.displayMesh)); // deletes known uneeded fields + + delete obj.displayMesh; + delete obj.displayValue; + delete obj.Edges; + delete obj.Faces; + delete obj.Loops; + delete obj.Trims; + delete obj.Curve2D; + delete obj.Curve3D; + delete obj.Surfaces; + delete obj.Vertices; + return new _ObjectWrapper__WEBPACK_IMPORTED_MODULE_1__.default(bufferGeometry, obj); + } catch (e) { + console.warn("Failed to convert brep id: " + obj.id); + throw e; + } + }); + + function BrepToBufferGeometry(_x6) { + return _BrepToBufferGeometry.apply(this, arguments); + } + + return BrepToBufferGeometry; + }() + }, { + key: "MeshToBufferGeometry", + value: function () { + var _MeshToBufferGeometry = _asyncToGenerator(function* (obj) { + try { + if (!obj) return; + var conversionFactor = (0,_Units__WEBPACK_IMPORTED_MODULE_2__.getConversionFactor)(obj.units); // console.log( conversionFactor ) + + var buffer = new three__WEBPACK_IMPORTED_MODULE_0__.BufferGeometry(); + var indices = []; + var vertices = yield this.dechunk(obj.vertices); + var faces = yield this.dechunk(obj.faces); + var k = 0; + + while (k < faces.length) { + if (faces[k] === 1) { + // QUAD FACE + indices.push(faces[k + 1], faces[k + 2], faces[k + 3]); + indices.push(faces[k + 1], faces[k + 3], faces[k + 4]); + k += 5; + } else if (faces[k] === 0) { + // TRIANGLE FACE + indices.push(faces[k + 1], faces[k + 2], faces[k + 3]); + k += 4; + } else throw new Error("Mesh type not supported. Face topology indicator: " + faces[k]); + } + + buffer.setIndex(indices); + buffer.setAttribute('position', new three__WEBPACK_IMPORTED_MODULE_0__.Float32BufferAttribute(conversionFactor === 1 ? vertices : vertices.map(v => v * conversionFactor), 3)); + buffer.computeVertexNormals(); + buffer.computeFaceNormals(); + buffer.computeBoundingSphere(); + delete obj.vertices; + delete obj.faces; + return new _ObjectWrapper__WEBPACK_IMPORTED_MODULE_1__.default(buffer, obj); + } catch (e) { + console.warn("Failed to convert mesh with id: " + obj.id); + throw e; + } + }); + + function MeshToBufferGeometry(_x7) { + return _MeshToBufferGeometry.apply(this, arguments); + } + + return MeshToBufferGeometry; + }() // TODOs: + // async PointToBufferGeometry( obj ) {} + // async LineToBufferGeometry( obj ) {} + // async PolylineToBufferGeometry( obj ) {} + // async PolycurveToBufferGeometry( obj ) {} + // async CurveToBufferGeometry( obj ) {} + // async CircleToBufferGeometry( obj ) {} + // async ArcToBufferGeometry( obj ) {} + // async EllipseToBufferGeometry( obj ) {} + // async SurfaceToBufferGeometry( obj ) {} + + }]); + + return Coverter; +}(); + + + +/***/ }), + +/***/ "./src/modules/EventEmitter.js": +/*!*************************************!*\ + !*** ./src/modules/EventEmitter.js ***! + \*************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ EventEmitter +/* harmony export */ }); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +var EventEmitter = /*#__PURE__*/function () { + function EventEmitter() { + _classCallCheck(this, EventEmitter); + + this._events = {}; + } + + _createClass(EventEmitter, [{ + key: "on", + value: function on(name, listener) { + if (!this._events[name]) { + this._events[name] = []; + } + + this._events[name].push(listener); + } + }, { + key: "removeListener", + value: function removeListener(name, listenerToRemove) { + if (!this._events[name]) return; + + var filterListeners = listener => listener !== listenerToRemove; + + this._events[name] = this._events[name].filter(filterListeners); + } + }, { + key: "emit", + value: function emit(name, data) { + if (!this._events[name]) return; + + var fireCallbacks = callback => { + callback(data); + }; + + this._events[name].forEach(fireCallbacks); + } + }]); + + return EventEmitter; +}(); + + + +/***/ }), + +/***/ "./src/modules/ObjectLoader.js": +/*!*************************************!*\ + !*** ./src/modules/ObjectLoader.js ***! + \*************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ ObjectLoader +/* harmony export */ }); +function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } + +function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +function _awaitAsyncGenerator(value) { return new _AwaitValue(value); } + +function _wrapAsyncGenerator(fn) { return function () { return new _AsyncGenerator(fn.apply(this, arguments)); }; } + +function _AsyncGenerator(gen) { var front, back; function send(key, arg) { return new Promise(function (resolve, reject) { var request = { key: key, arg: arg, resolve: resolve, reject: reject, next: null }; if (back) { back = back.next = request; } else { front = back = request; resume(key, arg); } }); } function resume(key, arg) { try { var result = gen[key](arg); var value = result.value; var wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume(key === "return" ? "return" : "next", arg); return; } settle(result.done ? "return" : "normal", arg); }, function (err) { resume("throw", err); }); } catch (err) { settle("throw", err); } } function settle(type, value) { switch (type) { case "return": front.resolve({ value: value, done: true }); break; case "throw": front.reject(value); break; default: front.resolve({ value: value, done: false }); break; } front = front.next; if (front) { resume(front.key, front.arg); } else { back = null; } } this._invoke = send; if (typeof gen.return !== "function") { this.return = undefined; } } + +if (typeof Symbol === "function" && Symbol.asyncIterator) { _AsyncGenerator.prototype[Symbol.asyncIterator] = function () { return this; }; } + +_AsyncGenerator.prototype.next = function (arg) { return this._invoke("next", arg); }; + +_AsyncGenerator.prototype.throw = function (arg) { return this._invoke("throw", arg); }; + +_AsyncGenerator.prototype.return = function (arg) { return this._invoke("return", arg); }; + +function _AwaitValue(value) { this.wrapped = value; } + +function _asyncIterator(iterable) { var method; if (typeof Symbol !== "undefined") { if (Symbol.asyncIterator) { method = iterable[Symbol.asyncIterator]; if (method != null) return method.call(iterable); } if (Symbol.iterator) { method = iterable[Symbol.iterator]; if (method != null) return method.call(iterable); } } throw new TypeError("Object is not async iterable"); } + +/** + * Simple client that streams object info from a Speckle Server. + * TODO: This should be split from the viewer into its own package. + */ +var ObjectLoader = /*#__PURE__*/function () { + function ObjectLoader(_ref) { + var { + serverUrl, + streamId, + token, + objectId + } = _ref; + + _classCallCheck(this, ObjectLoader); + + this.INTERVAL_MS = 20; + this.TIMEOUT_MS = 180000; // three mins + + this.serverUrl = serverUrl || window.location.origin; + this.streamId = streamId; + this.objectId = objectId; + this.token = token || localStorage.getItem('AuthToken'); + this.headers = { + 'Authorization': "Bearer " + this.token, + 'Accept': 'text/plain' + }; + this.requestUrl = this.serverUrl + "/objects/" + this.streamId + "/" + this.objectId; + this.promises = []; + this.intervals = {}; + this.buffer = []; + } + + _createClass(ObjectLoader, [{ + key: "dispose", + value: function dispose() { + this.buffer = []; + this.intervals.forEach(i => clearInterval(i.interval)); + } + }, { + key: "getObject", + value: function () { + var _getObject = _asyncToGenerator(function* (id) { + if (this.buffer[id]) return this.buffer[id]; + var promise = new Promise((resolve, reject) => { + this.promises.push({ + id, + resolve, + reject + }); // Only create a new interval checker if none is already present! + + if (this.intervals[id]) { + this.intervals[id].elapsed = 0; // reset elapsed + } else { + var intervalId = setInterval(this.tryResolvePromise.bind(this), this.INTERVAL_MS, id); + this.intervals[id] = { + interval: intervalId, + elapsed: 0 + }; + } + }); + return promise; + }); + + function getObject(_x) { + return _getObject.apply(this, arguments); + } + + return getObject; + }() + }, { + key: "tryResolvePromise", + value: function tryResolvePromise(id) { + this.intervals[id].elapsed += this.INTERVAL_MS; + + if (this.buffer[id]) { + for (var p of this.promises.filter(p => p.id === id)) { + p.resolve(this.buffer[id]); + } + + clearInterval(this.intervals[id].interval); + delete this.intervals[id]; // this.promises = this.promises.filter( p => p.id !== p.id ) // clearing out promises too early seems to nuke loading + + return; + } + + if (this.intervals[id].elapsed > this.TIMEOUT_MS) { + console.warn("Timeout resolving " + id + ". HIC SVNT DRACONES."); + clearInterval(this.intervals[id].interval); + this.promises.filter(p => p.id === id).forEach(p => p.reject()); + this.promises = this.promises.filter(p => p.id !== p.id); // clear out + } + } + }, { + key: "getObjectIterator", + value: function getObjectIterator() { + var _this = this; + + return _wrapAsyncGenerator(function* () { + var _iteratorNormalCompletion = true; + var _didIteratorError = false; + + var _iteratorError; + + try { + for (var _iterator = _asyncIterator(_this.getRawObjectIterator()), _step, _value; _step = yield _awaitAsyncGenerator(_iterator.next()), _iteratorNormalCompletion = _step.done, _value = yield _awaitAsyncGenerator(_step.value), !_iteratorNormalCompletion; _iteratorNormalCompletion = true) { + var line = _value; + + var { + id, + obj + } = _this.processLine(line); + + _this.buffer[id] = obj; + yield obj; + } + } catch (err) { + _didIteratorError = true; + _iteratorError = err; + } finally { + try { + if (!_iteratorNormalCompletion && _iterator.return != null) { + yield _awaitAsyncGenerator(_iterator.return()); + } + } finally { + if (_didIteratorError) { + throw _iteratorError; + } + } + } + })(); + } + }, { + key: "processLine", + value: function processLine(chunk) { + var pieces = chunk.split('\t'); + return { + id: pieces[0], + obj: JSON.parse(pieces[1]) + }; + } + }, { + key: "getRawObjectIterator", + value: function getRawObjectIterator() { + var _this2 = this; + + return _wrapAsyncGenerator(function* () { + var decoder = new TextDecoder(); + var response = yield _awaitAsyncGenerator(fetch(_this2.requestUrl, { + headers: _this2.headers + })); + var reader = response.body.getReader(); + var { + value: chunk, + done: readerDone + } = yield _awaitAsyncGenerator(reader.read()); + chunk = chunk ? decoder.decode(chunk) : ''; + var re = /\r\n|\n|\r/gm; + var startIndex = 0; + + while (true) { + var result = re.exec(chunk); + + if (!result) { + if (readerDone) break; + var remainder = chunk.substr(startIndex); + ({ + value: chunk, + done: readerDone + } = yield _awaitAsyncGenerator(reader.read())); + chunk = remainder + (chunk ? decoder.decode(chunk) : ''); + startIndex = re.lastIndex = 0; + continue; + } + + yield chunk.substring(startIndex, result.index); + startIndex = re.lastIndex; + } + + if (startIndex < chunk.length) { + yield chunk.substr(startIndex); + } + })(); + } + }]); + + return ObjectLoader; +}(); + + + +/***/ }), + +/***/ "./src/modules/ObjectWrapper.js": +/*!**************************************!*\ + !*** ./src/modules/ObjectWrapper.js ***! + \**************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ ObjectWrapper +/* harmony export */ }); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +/** + * Class that wraps around a buffer geometry and any remaining speckle object + * metadata. Used to match the two in the renderer. + */ +var ObjectWrapper = function ObjectWrapper(bufferGeometry, meta, geometryType) { + _classCallCheck(this, ObjectWrapper); + + this.bufferGeometry = bufferGeometry; + this.meta = meta; + this.geometryType = geometryType || 'solid'; +}; + + + +/***/ }), + +/***/ "./src/modules/SceneObjectManager.js": +/*!*******************************************!*\ + !*** ./src/modules/SceneObjectManager.js ***! + \*******************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ SceneObjectManager +/* harmony export */ }); +/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var lodash_debounce__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! lodash.debounce */ "./node_modules/lodash.debounce/index.js"); +/* harmony import */ var lodash_debounce__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(lodash_debounce__WEBPACK_IMPORTED_MODULE_1__); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + + + +/** + * Manages objects and provides some convenience methods to focus on the entire scene, or one specific object. + */ + +var SceneObjectManager = /*#__PURE__*/function () { + function SceneObjectManager(viewer) { + _classCallCheck(this, SceneObjectManager); + + this.viewer = viewer; + this.scene = viewer.scene; + this.userObjects = new three__WEBPACK_IMPORTED_MODULE_0__.Group(); + this.solidObjects = new three__WEBPACK_IMPORTED_MODULE_0__.Group(); + this.transparentObjects = new three__WEBPACK_IMPORTED_MODULE_0__.Group(); + this.userObjects.add(this.solidObjects); + this.userObjects.add(this.transparentObjects); + this.scene.add(this.userObjects); + this.solidMaterial = new three__WEBPACK_IMPORTED_MODULE_0__.MeshStandardMaterial({ + color: 0x8D9194, + emissive: 0x0, + roughness: 1, + metalness: 0, + side: three__WEBPACK_IMPORTED_MODULE_0__.DoubleSide, + envMap: this.viewer.cubeCamera.renderTarget.texture + }); + this.transparentMaterial = new three__WEBPACK_IMPORTED_MODULE_0__.MeshStandardMaterial({ + color: 0xA0A4A8, + emissive: 0x0, + roughness: 0, + metalness: 0.5, + side: three__WEBPACK_IMPORTED_MODULE_0__.DoubleSide, + transparent: true, + opacity: 0.4, + envMap: this.viewer.cubeCamera.renderTarget.texture + }); + this.objectIds = []; + this.postLoad = lodash_debounce__WEBPACK_IMPORTED_MODULE_1___default()(() => { + this._postLoadFunction(); + }, 200); + this.loaders = []; + } + + _createClass(SceneObjectManager, [{ + key: "addObject", + // Note: we might switch later down the line from cloning materials to solely + // using a few "default" ones and controlling color through vertex colors. + // For now a small compromise to speed up dev; it is not the most memory + // efficient approach. + // To support big models we might need to merge everything in buffer geometries, + // and control things separately to squeeze those sweet FPS (esp mobile); but + // this conflicts a bit with the interactivity requirements of the viewer, esp. + // the TODO ones (colour by property). + value: function addObject(wrapper) { + if (!wrapper || !wrapper.bufferGeometry) return; + + switch (wrapper.geometryType) { + case 'solid': + // Do we have a defined material? + if (wrapper.meta.renderMaterial) { + var renderMat = wrapper.meta.renderMaterial; + var color = new three__WEBPACK_IMPORTED_MODULE_0__.Color(this._argbToRGB(renderMat.diffuse)); + + this._normaliseColor(color); // Is it a transparent material? + + + if (renderMat.opacity !== 1) { + var material = this.transparentMaterial.clone(); + material.clippingPlanes = this.viewer.sectionPlaneHelper.planes; + material.color = color; + material.opacity = renderMat.opacity !== 0 ? renderMat.opacity : 0.2; + this.addTransparentSolid(wrapper, material); // It's not a transparent material! + } else { + var _material = this.solidMaterial.clone(); + + _material.clippingPlanes = this.viewer.sectionPlaneHelper.planes; + _material.color = color; + _material.metalness = renderMat.metalness; + if (_material.metalness !== 0) _material.roughness = 0.1; + if (_material.metalness > 0.8) _material.color = new three__WEBPACK_IMPORTED_MODULE_0__.Color('#CDCDCD'); // hack for rhino metal materials being black FFS + + this.addSolid(wrapper, _material); + } + } else { + // If we don't have defined material, just use the default + var _material2 = this.solidMaterial.clone(); + + _material2.clippingPlanes = this.viewer.sectionPlaneHelper.planes; + this.addSolid(wrapper, _material2); + } + + break; + + case 'line': + this.addLine(wrapper); + break; + + case 'point': + this.addPoint(wrapper); + break; + } + + this.postLoad(); + } + }, { + key: "addSolid", + value: function addSolid(wrapper, material) { + var mesh = new three__WEBPACK_IMPORTED_MODULE_0__.Mesh(wrapper.bufferGeometry, material ? material : this.solidMaterial); + mesh.userData = wrapper.meta; + mesh.uuid = wrapper.meta.id; + this.objectIds.push(mesh.uuid); + this.solidObjects.add(mesh); + } + }, { + key: "addTransparentSolid", + value: function addTransparentSolid(wrapper, material) { + var mesh = new three__WEBPACK_IMPORTED_MODULE_0__.Mesh(wrapper.bufferGeometry, material ? material : this.transparentMaterial); + mesh.userData = wrapper.meta; + mesh.uuid = wrapper.meta.id; + this.objectIds.push(mesh.uuid); + this.transparentObjects.add(mesh); + } + }, { + key: "addLine", + value: function addLine(wrapper) {// TODO + } + }, { + key: "addPoint", + value: function addPoint(wrapper) {// TODO + } + }, { + key: "removeObject", + value: function removeObject(id) {// TODO + } + }, { + key: "removeAllObjects", + value: function removeAllObjects() { + for (var obj of this.objects) { + if (obj.geometry) { + obj.geometry.dispose(); + } + } + + this.solidObjects.clear(); + this.transparentObjects.clear(); + this.viewer.selectionHelper.unselect(); + this.objectIds = []; + + this._postLoadFunction(); + } + }, { + key: "_postLoadFunction", + value: function _postLoadFunction() { + this.zoomExtents(); + this.viewer.reflectionsNeedUpdate = true; + + this.viewer.sectionPlaneHelper._matchSceneSize(); + } + }, { + key: "zoomToObject", + value: function zoomToObject(target) { + var box = new three__WEBPACK_IMPORTED_MODULE_0__.Box3().setFromObject(target); + this.zoomToBox(box); + } + }, { + key: "zoomExtents", + value: function zoomExtents() { + var bboxTarget = this.userObjects; + + if (this.objects.length === 0) { + var _box = new three__WEBPACK_IMPORTED_MODULE_0__.Box3(new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(-1, -1, -1), new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(1, 1, 1)); + + this.zoomToBox(_box); + return; + } + + var box = new three__WEBPACK_IMPORTED_MODULE_0__.Box3().setFromObject(bboxTarget); + this.zoomToBox(box); + } // see this discussion: https://github.com/mrdoob/three.js/pull/14526#issuecomment-497254491 + // Notes: seems that zooming in to a box 'rescales' the SSAO pass somehow and makes it + // look better. Could we do the same thing somehow when controls stop moving? + + }, { + key: "zoomToBox", + value: function zoomToBox(box) { + var fitOffset = 1.2; + var size = box.getSize(new three__WEBPACK_IMPORTED_MODULE_0__.Vector3()); + var center = box.getCenter(new three__WEBPACK_IMPORTED_MODULE_0__.Vector3()); + var maxSize = Math.max(size.x, size.y, size.z); + var fitHeightDistance = maxSize / (2 * Math.atan(Math.PI * this.viewer.camera.fov / 360)); + var fitWidthDistance = fitHeightDistance / this.viewer.camera.aspect; + var distance = fitOffset * Math.max(fitHeightDistance, fitWidthDistance); + var direction = this.viewer.controls.target.clone().sub(this.viewer.camera.position).normalize().multiplyScalar(distance); // this.viewer.controls.maxDistance = distance * 20 + + this.viewer.controls.target.copy(center); + this.viewer.camera.near = distance / 100; + this.viewer.camera.far = distance * 100; + this.viewer.camera.updateProjectionMatrix(); + this.viewer.camera.position.copy(this.viewer.controls.target).sub(direction); + this.viewer.controls.update(); + } + }, { + key: "_argbToRGB", + value: function _argbToRGB(argb) { + return '#' + ('000000' + (argb & 0xFFFFFF).toString(16)).slice(-6); + } + }, { + key: "_normaliseColor", + value: function _normaliseColor(color) { + // Note: full of **magic numbers** that will need changing once global scene + // is properly set up; also to test with materials coming from other software too... + var hsl = {}; + color.getHSL(hsl); + + if (hsl.s + hsl.l > 1) { + while (hsl.s + hsl.l > 1) { + hsl.s -= 0.05; + hsl.l -= 0.05; + } + } + + if (hsl.l > 0.6) { + hsl.l = 0.6; + } + + if (hsl.l < 0.3) { + hsl.l = 0.3; + } + + color.setHSL(hsl.h, hsl.s, hsl.l); + } + }, { + key: "objects", + get: function get() { + return [...this.solidObjects.children, ...this.transparentObjects.children]; + } + }]); + + return SceneObjectManager; +}(); + + + +/***/ }), + +/***/ "./src/modules/SectionPlaneHelper.js": +/*!*******************************************!*\ + !*** ./src/modules/SectionPlaneHelper.js ***! + \*******************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ SectionPlaneHelper +/* harmony export */ }); +/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var three_examples_jsm_controls_TransformControls_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! three/examples/jsm/controls/TransformControls.js */ "./node_modules/three/examples/jsm/controls/TransformControls.js"); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + + + +/** + * WIP: A utility class for adding section planes to the scene. + * - 'S' shows/hides section planes + * - 's' toggles controls from translate to rotate + */ + +var SectionPlaneHelper = /*#__PURE__*/function () { + function SectionPlaneHelper(parent) { + _classCallCheck(this, SectionPlaneHelper); + + this.viewer = parent; + this.cutters = []; + this.visible = false; + window.addEventListener('keydown', event => { + if (event.key === 's') { + this.toggleTransformControls(); + } + + if (event.key === 'S') { + this.toggleSectionPlanes(); + } + }, false); + } + + _createClass(SectionPlaneHelper, [{ + key: "toggleTransformControls", + value: function toggleTransformControls() { + this.cutters.forEach(cutter => { + if (cutter.control.mode === 'rotate') { + cutter.control.setMode('translate'); + cutter.control.showX = false; + cutter.control.showY = false; + cutter.control.showZ = true; + return; + } + + cutter.control.setMode('rotate'); + cutter.control.showX = true; + cutter.control.showY = true; + cutter.control.showZ = false; + }); + } + }, { + key: "createSectionPlane", + value: function createSectionPlane() { + var cutter = {}; + cutter.id = this.cutters.length; + cutter.visible = false; + cutter.plane = new three__WEBPACK_IMPORTED_MODULE_0__.Plane(new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(0, 0, -1), 1); + cutter.helper = new three__WEBPACK_IMPORTED_MODULE_0__.Mesh(new three__WEBPACK_IMPORTED_MODULE_0__.PlaneGeometry(1, 1, 1), new three__WEBPACK_IMPORTED_MODULE_0__.MeshBasicMaterial({ + color: 0xAFAFAF, + transparent: true, + opacity: 0.1, + side: three__WEBPACK_IMPORTED_MODULE_0__.DoubleSide + })); + cutter.helper.visible = false; + this.viewer.scene.add(cutter.helper); + cutter.control = new three_examples_jsm_controls_TransformControls_js__WEBPACK_IMPORTED_MODULE_1__.TransformControls(this.viewer.camera, this.viewer.renderer.domElement); + cutter.control.setSize(0.5); + cutter.control.space = 'local'; + cutter.control.showX = false; + cutter.control.showY = false; + cutter.control.setRotationSnap(three__WEBPACK_IMPORTED_MODULE_0__.MathUtils.degToRad(15)); + cutter.control.addEventListener('change', () => this.viewer.render); + cutter.control.addEventListener('dragging-changed', event => { + if (!cutter.visible) return; + this.viewer.controls.enabled = !event.value; // Reference: https://stackoverflow.com/a/52124409 + + var normal = new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + var point = new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + normal.set(0, 0, -1).applyQuaternion(cutter.helper.quaternion); + point.copy(cutter.helper.position); + cutter.plane.setFromNormalAndCoplanarPoint(normal, point); + }); + cutter.control.attach(cutter.helper); + cutter.control.visible = false; + this.viewer.scene.add(cutter.control); + this.cutters.push(cutter); // adds local clipping planes to all materials + + var objs = this.viewer.sceneManager.objects; + objs.forEach(obj => { + obj.material.clippingPlanes = this.cutters.map(c => c.plane); + }); + } + }, { + key: "toggleSectionPlanes", + value: function toggleSectionPlanes() { + if (this.visible) this.hideSectionPlanes();else this.showSectionPlanes(); + this.visible = !this.visible; + } + }, { + key: "showSectionPlanes", + value: function showSectionPlanes() { + this._matchSceneSize(); + + this.cutters.forEach(cutter => { + cutter.visible = true; + cutter.helper.visible = true; + cutter.control.visible = true; + }); + this.viewer.renderer.localClippingEnabled = true; + } + }, { + key: "hideSectionPlanes", + value: function hideSectionPlanes() { + this.cutters.forEach(cutter => { + cutter.visible = false; + cutter.helper.visible = false; + cutter.control.visible = false; + }); + this.viewer.renderer.localClippingEnabled = false; + } + }, { + key: "_matchSceneSize", + value: function _matchSceneSize() { + // Scales and translate helper to scene bbox center and origin + var sceneBox = new three__WEBPACK_IMPORTED_MODULE_0__.Box3().setFromObject(this.viewer.sceneManager.userObjects); + var sceneSize = new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + sceneBox.getSize(sceneSize); + var sceneCenter = new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + sceneBox.getCenter(sceneCenter); + this.cutters.forEach(cutter => { + cutter.helper.scale.set(sceneSize.x > 0 ? sceneSize.x : 1, sceneSize.y > 0 ? sceneSize.y : 1, sceneSize.z > 0 ? sceneSize.z : 1); + cutter.helper.position.set(sceneCenter.x, sceneCenter.y, sceneCenter.z); + var normal = new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + var point = new three__WEBPACK_IMPORTED_MODULE_0__.Vector3(); + normal.set(0, 0, -1).applyQuaternion(cutter.helper.quaternion); + point.copy(cutter.helper.position); + cutter.plane.setFromNormalAndCoplanarPoint(normal, point); + }); + } + }, { + key: "planes", + get: function get() { + return this.cutters.map(cutter => cutter.plane); + } + }, { + key: "activePlanes", + get: function get() { + return this.cutters.filter(cutter => cutter.visible).map(cutter => cutter.plane); + } + }]); + + return SectionPlaneHelper; +}(); + + + +/***/ }), + +/***/ "./src/modules/SelectionHelper.js": +/*!****************************************!*\ + !*** ./src/modules/SelectionHelper.js ***! + \****************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ SelectionHelper +/* harmony export */ }); +/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var lodash_debounce__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! lodash.debounce */ "./node_modules/lodash.debounce/index.js"); +/* harmony import */ var lodash_debounce__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(lodash_debounce__WEBPACK_IMPORTED_MODULE_1__); +/* harmony import */ var _EventEmitter__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./EventEmitter */ "./src/modules/EventEmitter.js"); +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); } + +function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); } + +function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; } + +function _possibleConstructorReturn(self, call) { if (call && (typeof call === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); } + +function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; } + +function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } } + +function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); } + + + + +/** + * Selects and deselects user added objects in the scene. Emits the array of all intersected objects on click. + * Behaviours: + * - Clicking on one object will select it. + * - Double clicking on one object will focus on it. + * - Double clicking anywhere else will focus the scene. + * - Pressing escape will clear any selection present. + * TODOs: + * - Ensure clipped geometry is not selected. + * - When objects are disposed, ensure selection is reset. + */ + +var SelectionHelper = /*#__PURE__*/function (_EventEmitter) { + _inherits(SelectionHelper, _EventEmitter); + + var _super = _createSuper(SelectionHelper); + + function SelectionHelper(parent) { + var _this; + + _classCallCheck(this, SelectionHelper); + + _this = _super.call(this); + _this.viewer = parent; + _this.raycaster = new three__WEBPACK_IMPORTED_MODULE_0__.Raycaster(); // Handle clicks during camera moves + + _this.orbiting = false; + + _this.viewer.controls.addEventListener('change', lodash_debounce__WEBPACK_IMPORTED_MODULE_1___default()(() => { + _this.orbiting = false; + }, 100)); + + _this.viewer.controls.addEventListener('start', lodash_debounce__WEBPACK_IMPORTED_MODULE_1___default()(() => { + _this.orbiting = true; + }, 200)); + + _this.viewer.controls.addEventListener('end', lodash_debounce__WEBPACK_IMPORTED_MODULE_1___default()(() => { + _this.orbiting = false; + }, 200)); // Handle mouseclicks + + + _this.viewer.renderer.domElement.addEventListener('pointerup', e => { + if (_this.orbiting) return; + + var selectionObjects = _this.getClickedObjects(e); + + _this.handleSelection(selectionObjects); + }); // Doubleclicks on touch devices + // http://jsfiddle.net/brettwp/J4djY/ + + + _this.tapTimeout; + _this.lastTap = 0; + _this.touchLocation; + + _this.viewer.renderer.domElement.addEventListener('touchstart', e => { + _this.touchLocation = e.targetTouches[0]; + }); + + _this.viewer.renderer.domElement.addEventListener('touchend', event => { + var currentTime = new Date().getTime(); + var tapLength = currentTime - _this.lastTap; + clearTimeout(_this.tapTimeout); + + if (tapLength < 500 && tapLength > 0) { + var selectionObjects = _this.getClickedObjects(_this.touchLocation); + + _this.emit('object-doubleclicked', selectionObjects); + + if (!_this.orbiting) _this.handleDoubleClick(selectionObjects); + event.preventDefault(); + } else { + _this.tapTimeout = setTimeout(function () { + clearTimeout(this.tapTimeout); + }, 500); + } + + _this.lastTap = currentTime; + }); + + _this.viewer.renderer.domElement.addEventListener('dblclick', e => { + // if ( this.orbiting ) return // not needed for zoom to thing? + var selectionObjects = _this.getClickedObjects(e); + + _this.emit('object-doubleclicked', selectionObjects); + + _this.handleDoubleClick(selectionObjects); + }); // Handle multiple object selection + + + _this.multiSelect = false; + document.addEventListener('keydown', e => { + if (e.isComposing || e.keyCode === 229) return; + if (e.key === 'Shift') _this.multiSelect = true; + if (e.key === 'Escape') _this.unselect(); + }); + document.addEventListener('keyup', e => { + if (e.isComposing || e.keyCode === 229) return; + if (e.key === 'Shift') _this.multiSelect = false; + }); + _this.selectionMaterial = new three__WEBPACK_IMPORTED_MODULE_0__.MeshLambertMaterial({ + color: 0x0B55D2, + emissive: 0x0B55D2, + side: three__WEBPACK_IMPORTED_MODULE_0__.DoubleSide + }); + _this.selectedObjects = new three__WEBPACK_IMPORTED_MODULE_0__.Group(); + _this.selectedObjects.renderOrder = 1000; + + _this.viewer.scene.add(_this.selectedObjects); + + _this.originalSelectionObjects = []; + return _this; + } + + _createClass(SelectionHelper, [{ + key: "handleSelection", + value: function handleSelection(objects) { + this.select(objects[0]); + } + }, { + key: "handleDoubleClick", + value: function handleDoubleClick(objects) { + if (!objects || objects.length === 0) this.viewer.sceneManager.zoomExtents();else this.viewer.sceneManager.zoomToObject(objects[0].object); + } + }, { + key: "select", + value: function select(obj) { + if (!this.multiSelect) this.unselect(); + + if (!obj) { + this.emit('object-clicked', this.originalSelectionObjects); + return; + } + + var mesh = new three__WEBPACK_IMPORTED_MODULE_0__.Mesh(obj.object.geometry, this.selectionMaterial); + this.selectedObjects.add(mesh); + this.originalSelectionObjects.push(obj); + this.emit('object-clicked', this.originalSelectionObjects); + } + }, { + key: "unselect", + value: function unselect() { + this.selectedObjects.clear(); + this.originalSelectionObjects = []; + } + }, { + key: "getClickedObjects", + value: function getClickedObjects(e) { + var normalizedPosition = this._getNormalisedClickPosition(e); + + this.raycaster.setFromCamera(normalizedPosition, this.viewer.camera); + var intersectedObjects = this.raycaster.intersectObjects(this.viewer.sceneManager.objects); + intersectedObjects = intersectedObjects.filter(obj => this.viewer.sectionPlaneHelper.activePlanes.every(pl => pl.distanceToPoint(obj.point) > 0)); + return intersectedObjects; + } + }, { + key: "_getNormalisedClickPosition", + value: function _getNormalisedClickPosition(e) { + // Reference: https://threejsfundamentals.org/threejs/lessons/threejs-picking.html + var canvas = this.viewer.renderer.domElement; + var rect = this.viewer.renderer.domElement.getBoundingClientRect(); + var pos = { + x: (e.clientX - rect.left) * canvas.width / rect.width, + y: (e.clientY - rect.top) * canvas.height / rect.height + }; + return { + x: pos.x / canvas.width * 2 - 1, + y: pos.y / canvas.height * -2 + 1 + }; + } + }, { + key: "dispose", + value: function dispose() { + this.viewer.scene.remove(this.selectedObjects); + this.unselect(); + this.originalSelectionObjects = null; + this.selectionMaterial = null; + this.selectedObjects = null; + } + }]); + + return SelectionHelper; +}(_EventEmitter__WEBPACK_IMPORTED_MODULE_2__.default); + + + +/***/ }), + +/***/ "./src/modules/Units.js": +/*!******************************!*\ + !*** ./src/modules/Units.js ***! + \******************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "Units": () => /* binding */ Units, +/* harmony export */ "getConversionFactor": () => /* binding */ getConversionFactor, +/* harmony export */ "normaliseName": () => /* binding */ normaliseName +/* harmony export */ }); +var Units = { + Millimeters: 'mm', + Centimeters: 'cm', + Meters: 'm', + Kilometers: 'km', + Inches: 'in', + Feet: 'ft', + Yards: 'yd', + Miles: 'mi' +}; +function getConversionFactor(from, to) { + if (to === void 0) { + to = Units.Meters; + } + + from = normaliseName(from); + to = normaliseName(to); + + switch (from) { + // METRIC + case Units.Millimeters: + switch (to) { + case Units.Centimeters: + return 0.1; + + case Units.Meters: + return 0.001; + + case Units.Kilometers: + return 1e-6; + + case Units.Inches: + return 0.0393701; + + case Units.Feet: + return 0.00328084; + + case Units.Yards: + return 0.00109361; + + case Units.Miles: + return 6.21371e-7; + } + + break; + + case Units.Centimeters: + switch (to) { + case Units.Millimeters: + return 10; + + case Units.Meters: + return 0.01; + + case Units.Kilometers: + return 1e-5; + + case Units.Inches: + return 0.393701; + + case Units.Feet: + return 0.0328084; + + case Units.Yards: + return 0.0109361; + + case Units.Miles: + return 6.21371e-6; + } + + break; + + case Units.Meters: + switch (to) { + case Units.Millimeters: + return 1000; + + case Units.Centimeters: + return 100; + + case Units.Kilometers: + return 1000; + + case Units.Inches: + return 39.3701; + + case Units.Feet: + return 3.28084; + + case Units.Yards: + return 1.09361; + + case Units.Miles: + return 0.000621371; + } + + break; + + case Units.Kilometers: + switch (to) { + case Units.Millimeters: + return 1000000; + + case Units.Centimeters: + return 100000; + + case Units.Meters: + return 1000; + + case Units.Inches: + return 39370.1; + + case Units.Feet: + return 3280.84; + + case Units.Yards: + return 1093.61; + + case Units.Miles: + return 0.621371; + } + + break; + // IMPERIAL + + case Units.Inches: + switch (to) { + case Units.Millimeters: + return 25.4; + + case Units.Centimeters: + return 2.54; + + case Units.Meters: + return 0.0254; + + case Units.Kilometers: + return 2.54e-5; + + case Units.Feet: + return 0.0833333; + + case Units.Yards: + return 0.027777694; + + case Units.Miles: + return 1.57828e-5; + } + + break; + + case Units.Feet: + switch (to) { + case Units.Millimeters: + return 304.8; + + case Units.Centimeters: + return 30.48; + + case Units.Meters: + return 0.3048; + + case Units.Kilometers: + return 0.0003048; + + case Units.Inches: + return 12; + + case Units.Yards: + return 0.333332328; + + case Units.Miles: + return 0.000189394; + } + + break; + + case Units.Miles: + switch (to) { + case Units.Millimeters: + return 1.609e+6; + + case Units.Centimeters: + return 160934; + + case Units.Meters: + return 1609.34; + + case Units.Kilometers: + return 1.60934; + + case Units.Inches: + return 63360; + + case Units.Feet: + return 5280; + + case Units.Yards: + return 1759.99469184; + } + + break; + } + + return 1; +} +function normaliseName(unit) { + if (!unit) return Units.Meters; + + switch (unit.toLowerCase()) { + case 'mm': + case 'mil': + case 'millimeters': + case 'millimetres': + return Units.Millimeters; + + case 'cm': + case 'centimetre': + case 'centimeter': + case 'centimetres': + case 'centimeters': + return Units.Centimeters; + + case 'm': + case 'meter': + case 'metre': + case 'meters': + case 'metres': + return Units.Meters; + + case 'inches': + case 'inch': + case 'in': + return Units.Inches; + + case 'feet': + case 'foot': + case 'ft': + return Units.Feet; + + case 'yard': + case 'yards': + case 'yd': + return Units.Yards; + + case 'miles': + case 'mile': + case 'mi': + return Units.Miles; + + default: + return Units.Meters; + } +} + +/***/ }), + +/***/ "./src/modules/Viewer.js": +/*!*******************************!*\ + !*** ./src/modules/Viewer.js ***! + \*******************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ Viewer +/* harmony export */ }); +/* harmony import */ var three__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! three */ "./node_modules/three/build/three.module.js"); +/* harmony import */ var three_examples_jsm_controls_OrbitControls_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! three/examples/jsm/controls/OrbitControls.js */ "./node_modules/three/examples/jsm/controls/OrbitControls.js"); +/* harmony import */ var three_examples_jsm_postprocessing_EffectComposer_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! three/examples/jsm/postprocessing/EffectComposer.js */ "./node_modules/three/examples/jsm/postprocessing/EffectComposer.js"); +/* harmony import */ var three_examples_jsm_postprocessing_SSAOPass_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! three/examples/jsm/postprocessing/SSAOPass.js */ "./node_modules/three/examples/jsm/postprocessing/SSAOPass.js"); +/* harmony import */ var three_examples_jsm_libs_stats_module_js__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! three/examples/jsm/libs/stats.module.js */ "./node_modules/three/examples/jsm/libs/stats.module.js"); +/* harmony import */ var _SceneObjectManager__WEBPACK_IMPORTED_MODULE_5__ = __webpack_require__(/*! ./SceneObjectManager */ "./src/modules/SceneObjectManager.js"); +/* harmony import */ var _SelectionHelper__WEBPACK_IMPORTED_MODULE_6__ = __webpack_require__(/*! ./SelectionHelper */ "./src/modules/SelectionHelper.js"); +/* harmony import */ var _SectionPlaneHelper__WEBPACK_IMPORTED_MODULE_7__ = __webpack_require__(/*! ./SectionPlaneHelper */ "./src/modules/SectionPlaneHelper.js"); +/* harmony import */ var _ViewerObjectLoader__WEBPACK_IMPORTED_MODULE_8__ = __webpack_require__(/*! ./ViewerObjectLoader */ "./src/modules/ViewerObjectLoader.js"); +/* harmony import */ var _EventEmitter__WEBPACK_IMPORTED_MODULE_9__ = __webpack_require__(/*! ./EventEmitter */ "./src/modules/EventEmitter.js"); +function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } + +function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); } + +function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); } + +function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; } + +function _possibleConstructorReturn(self, call) { if (call && (typeof call === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); } + +function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; } + +function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } } + +function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); } + + + + + + + + + + + + +var Viewer = /*#__PURE__*/function (_EventEmitter) { + _inherits(Viewer, _EventEmitter); + + var _super = _createSuper(Viewer); + + function Viewer(_ref) { + var _this; + + var { + container, + postprocessing = true, + reflections = true + } = _ref; + + _classCallCheck(this, Viewer); + + _this = _super.call(this); + _this.container = container || document.getElementById('renderer'); + _this.postprocessing = postprocessing; + _this.scene = new three__WEBPACK_IMPORTED_MODULE_0__.Scene(); + _this.camera = new three__WEBPACK_IMPORTED_MODULE_0__.PerspectiveCamera(60, window.innerWidth / window.innerHeight); + + _this.camera.up.set(0, 0, 1); + + _this.camera.position.set(1, 1, 1); + + _this.renderer = new three__WEBPACK_IMPORTED_MODULE_0__.WebGLRenderer({ + antialias: true, + alpha: true + }); + + _this.renderer.setClearColor(0xcccccc, 0); + + _this.renderer.setPixelRatio(window.devicePixelRatio); + + _this.renderer.setSize(_this.container.offsetWidth, _this.container.offsetHeight); + + _this.container.appendChild(_this.renderer.domElement); // commented out because the ssao flash is annoying + // this.renderer.gammaFactor = 2.2 + // this.renderer.outputEncoding = THREE.sRGBEncoding + + + _this.reflections = reflections; + _this.reflectionsNeedUpdate = true; + var cubeRenderTarget = new three__WEBPACK_IMPORTED_MODULE_0__.WebGLCubeRenderTarget(512, { + format: three__WEBPACK_IMPORTED_MODULE_0__.RGBFormat, + generateMipmaps: true, + minFilter: three__WEBPACK_IMPORTED_MODULE_0__.LinearMipmapLinearFilter + }); + _this.cubeCamera = new three__WEBPACK_IMPORTED_MODULE_0__.CubeCamera(0.1, 10000, cubeRenderTarget); + + _this.scene.add(_this.cubeCamera); + + _this.controls = new three_examples_jsm_controls_OrbitControls_js__WEBPACK_IMPORTED_MODULE_1__.OrbitControls(_this.camera, _this.renderer.domElement); + _this.controls.enableDamping = true; + _this.controls.dampingFactor = 0.1; + _this.controls.screenSpacePanning = true; + _this.controls.maxPolarAngle = Math.PI / 2; + _this.controls.panSpeed = 0.8; + _this.controls.rotateSpeed = 0.8; + _this.composer = new three_examples_jsm_postprocessing_EffectComposer_js__WEBPACK_IMPORTED_MODULE_2__.EffectComposer(_this.renderer); + _this.ssaoPass = new three_examples_jsm_postprocessing_SSAOPass_js__WEBPACK_IMPORTED_MODULE_3__.SSAOPass(_this.scene, _this.camera, _this.container.offsetWidth, _this.container.offsetHeight); + _this.ssaoPass.kernelRadius = 0.03; + _this.ssaoPass.kernelSize = 16; + _this.ssaoPass.minDistance = 0.0002; + _this.ssaoPass.maxDistance = 10; + _this.ssaoPass.output = three_examples_jsm_postprocessing_SSAOPass_js__WEBPACK_IMPORTED_MODULE_3__.SSAOPass.OUTPUT.Default; + + _this.composer.addPass(_this.ssaoPass); + + _this.pauseSSAO = false; + + _this.controls.addEventListener('start', () => { + _this.pauseSSAO = true; + }); + + _this.controls.addEventListener('end', () => { + _this.pauseSSAO = false; + }); + + _this.stats = new three_examples_jsm_libs_stats_module_js__WEBPACK_IMPORTED_MODULE_4__.default(); + + _this.container.appendChild(_this.stats.dom); + + window.addEventListener('resize', _this.onWindowResize.bind(_assertThisInitialized(_this)), false); + _this.sectionPlaneHelper = new _SectionPlaneHelper__WEBPACK_IMPORTED_MODULE_7__.default(_assertThisInitialized(_this)); + _this.sceneManager = new _SceneObjectManager__WEBPACK_IMPORTED_MODULE_5__.default(_assertThisInitialized(_this)); + _this.selectionHelper = new _SelectionHelper__WEBPACK_IMPORTED_MODULE_6__.default(_assertThisInitialized(_this)); + + _this.sectionPlaneHelper.createSectionPlane(); + + _this.sceneLights(); + + _this.animate(); + + _this.loaders = []; + return _this; + } + + _createClass(Viewer, [{ + key: "sceneLights", + value: function sceneLights() { + var ambientLight = new three__WEBPACK_IMPORTED_MODULE_0__.AmbientLight(0xffffff); + this.scene.add(ambientLight); + var lights = []; + lights[0] = new three__WEBPACK_IMPORTED_MODULE_0__.PointLight(0xffffff, 0.21, 0); + lights[1] = new three__WEBPACK_IMPORTED_MODULE_0__.PointLight(0xffffff, 0.21, 0); + lights[2] = new three__WEBPACK_IMPORTED_MODULE_0__.PointLight(0xffffff, 0.21, 0); + lights[3] = new three__WEBPACK_IMPORTED_MODULE_0__.PointLight(0xffffff, 0.21, 0); + var factor = 1000; + lights[0].position.set(1 * factor, 1 * factor, 1 * factor); + lights[1].position.set(1 * factor, -1 * factor, 1 * factor); + lights[2].position.set(-1 * factor, -1 * factor, 1 * factor); + lights[3].position.set(-1 * factor, 1 * factor, 1 * factor); + this.scene.add(lights[0]); + this.scene.add(lights[1]); + this.scene.add(lights[2]); + this.scene.add(lights[3]); // let sphereSize = 0.2 + // this.scene.add( new THREE.PointLightHelper( lights[ 0 ], sphereSize ) ) + // this.scene.add( new THREE.PointLightHelper( lights[ 1 ], sphereSize ) ) + // this.scene.add( new THREE.PointLightHelper( lights[ 2 ], sphereSize ) ) + // this.scene.add( new THREE.PointLightHelper( lights[ 3 ], sphereSize ) ) + + var hemiLight = new three__WEBPACK_IMPORTED_MODULE_0__.HemisphereLight(0xffffff, 0x0, 0.2); + hemiLight.color.setHSL(1, 1, 1); + hemiLight.groundColor.setHSL(0.095, 1, 0.75); + hemiLight.up.set(0, 0, 1); + this.scene.add(hemiLight); + var axesHelper = new three__WEBPACK_IMPORTED_MODULE_0__.AxesHelper(1); + this.scene.add(axesHelper); + var group = new three__WEBPACK_IMPORTED_MODULE_0__.Group(); + this.scene.add(group); + } + }, { + key: "onWindowResize", + value: function onWindowResize() { + this.camera.aspect = this.container.offsetWidth / this.container.offsetHeight; + this.camera.updateProjectionMatrix(); + this.renderer.setSize(this.container.offsetWidth, this.container.offsetHeight); + this.composer.setSize(this.container.offsetWidth, this.container.offsetHeight); + } + }, { + key: "animate", + value: function animate() { + requestAnimationFrame(this.animate.bind(this)); + this.controls.update(); + this.stats.begin(); + this.render(); + this.stats.end(); + } + }, { + key: "render", + value: function render() { + if (this.reflections && this.reflectionsNeedUpdate) { + // Note: scene based "dynamic" reflections need to be handled a bit more carefully, or else: + // GL ERROR :GL_INVALID_OPERATION : glDrawElements: Source and destination textures of the draw are the same. + // First remove the env map from all materials + for (var obj of this.sceneManager.objects) { + obj.material.envMap = null; + } // Second, set a scene background color (renderer is transparent by default) + // and then finally update the cubemap camera. + + + this.scene.background = new three__WEBPACK_IMPORTED_MODULE_0__.Color('#F0F3F8'); + this.cubeCamera.update(this.renderer, this.scene); + this.scene.background = null; // Finally, re-set the env maps of all materials + + for (var _obj of this.sceneManager.objects) { + _obj.material.envMap = this.cubeCamera.renderTarget.texture; + } + + this.reflectionsNeedUpdate = false; + } // Render as usual + // TODO: post processing SSAO sucks so much currently it's off by default + + + if (this.postprocessing && !this.pauseSSAO && !this.renderer.localClippingEnabled) { + this.composer.render(this.scene, this.camera); + } else { + this.renderer.render(this.scene, this.camera); + } + } + }, { + key: "loadObject", + value: function () { + var _loadObject = _asyncToGenerator(function* (url, token) { + var loader = new _ViewerObjectLoader__WEBPACK_IMPORTED_MODULE_8__.default(this, url, token); + this.loaders.push(loader); + yield loader.load(); + }); + + function loadObject(_x, _x2) { + return _loadObject.apply(this, arguments); + } + + return loadObject; + }() + }, { + key: "dispose", + value: function dispose() {// TODO + } + }]); + + return Viewer; +}(_EventEmitter__WEBPACK_IMPORTED_MODULE_9__.default); + + + +/***/ }), + +/***/ "./src/modules/ViewerObjectLoader.js": +/*!*******************************************!*\ + !*** ./src/modules/ViewerObjectLoader.js ***! + \*******************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "default": () => /* binding */ ViewerObjectLoader +/* harmony export */ }); +/* harmony import */ var _ObjectLoader__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./ObjectLoader */ "./src/modules/ObjectLoader.js"); +/* harmony import */ var _Converter__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./Converter */ "./src/modules/Converter.js"); +function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } + +function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +function _asyncIterator(iterable) { var method; if (typeof Symbol !== "undefined") { if (Symbol.asyncIterator) { method = iterable[Symbol.asyncIterator]; if (method != null) return method.call(iterable); } if (Symbol.iterator) { method = iterable[Symbol.iterator]; if (method != null) return method.call(iterable); } } throw new TypeError("Object is not async iterable"); } + + + +/** + * Helper wrapper around the ObjectLoader class, with some built in assumptions. + */ + +var ViewerObjectLoader = /*#__PURE__*/function () { + function ViewerObjectLoader(parent, objectUrl, authToken) { + _classCallCheck(this, ViewerObjectLoader); + + this.viewer = parent; + this.token = authToken || localStorage.getItem('AuthToken'); + + if (!this.token) { + throw new Error('No suitable authorization token found.'); + } // example url: `https://staging.speckle.dev/streams/a75ab4f10f/objects/f33645dc9a702de8af0af16bd5f655b0` + + + var url = new URL(objectUrl); + var segments = url.pathname.split('/'); + + if (segments.length < 5 || url.pathname.indexOf('streams') === -1 || url.pathname.indexOf('objects') === -1) { + throw new Error('Unexpected object url format.'); + } + + this.serverUrl = url.origin; + this.streamId = segments[2]; + this.objectId = segments[4]; + this.loader = new _ObjectLoader__WEBPACK_IMPORTED_MODULE_0__.default({ + serverUrl: this.serverUrl, + token: this.token, + streamId: this.streamId, + objectId: this.objectId + }); + this.converter = new _Converter__WEBPACK_IMPORTED_MODULE_1__.default(this.loader); + } + + _createClass(ViewerObjectLoader, [{ + key: "load", + value: function () { + var _load = _asyncToGenerator(function* () { + var _this = this; + + var first = true; + var current = 0; + var total = 0; + var _iteratorNormalCompletion = true; + var _didIteratorError = false; + + var _iteratorError; + + try { + var _loop = function _loop() { + var obj = _value; + + if (first) { + _asyncToGenerator(function* () { + yield _this.converter.traverseAndConvert(obj, o => _this.viewer.sceneManager.addObject(o)); + })(); + + first = false; + total = obj.totalChildrenCount; + } + + current++; + + _this.viewer.emit('load-progress', { + progress: current / total, + id: _this.objectId + }); + }; + + for (var _iterator = _asyncIterator(this.loader.getObjectIterator()), _step, _value; _step = yield _iterator.next(), _iteratorNormalCompletion = _step.done, _value = yield _step.value, !_iteratorNormalCompletion; _iteratorNormalCompletion = true) { + _loop(); + } + } catch (err) { + _didIteratorError = true; + _iteratorError = err; + } finally { + try { + if (!_iteratorNormalCompletion && _iterator.return != null) { + yield _iterator.return(); + } + } finally { + if (_didIteratorError) { + throw _iteratorError; + } + } + } + }); + + function load() { + return _load.apply(this, arguments); + } + + return load; + }() + }]); + + return ViewerObjectLoader; +}(); + + + +/***/ }), + +/***/ "./node_modules/events/events.js": +/*!***************************************!*\ + !*** ./node_modules/events/events.js ***! + \***************************************/ +/***/ ((module) => { + +"use strict"; +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + + + +var R = typeof Reflect === 'object' ? Reflect : null +var ReflectApply = R && typeof R.apply === 'function' + ? R.apply + : function ReflectApply(target, receiver, args) { + return Function.prototype.apply.call(target, receiver, args); + } + +var ReflectOwnKeys +if (R && typeof R.ownKeys === 'function') { + ReflectOwnKeys = R.ownKeys +} else if (Object.getOwnPropertySymbols) { + ReflectOwnKeys = function ReflectOwnKeys(target) { + return Object.getOwnPropertyNames(target) + .concat(Object.getOwnPropertySymbols(target)); + }; +} else { + ReflectOwnKeys = function ReflectOwnKeys(target) { + return Object.getOwnPropertyNames(target); + }; +} + +function ProcessEmitWarning(warning) { + if (console && console.warn) console.warn(warning); +} + +var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) { + return value !== value; +} + +function EventEmitter() { + EventEmitter.init.call(this); +} +module.exports = EventEmitter; +module.exports.once = once; + +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._eventsCount = 0; +EventEmitter.prototype._maxListeners = undefined; + +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +var defaultMaxListeners = 10; + +function checkListener(listener) { + if (typeof listener !== 'function') { + throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener); + } +} + +Object.defineProperty(EventEmitter, 'defaultMaxListeners', { + enumerable: true, + get: function() { + return defaultMaxListeners; + }, + set: function(arg) { + if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) { + throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.'); + } + defaultMaxListeners = arg; + } +}); + +EventEmitter.init = function() { + + if (this._events === undefined || + this._events === Object.getPrototypeOf(this)._events) { + this._events = Object.create(null); + this._eventsCount = 0; + } + + this._maxListeners = this._maxListeners || undefined; +}; + +// Obviously not all Emitters should be limited to 10. This function allows +// that to be increased. Set to zero for unlimited. +EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) { + if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) { + throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.'); + } + this._maxListeners = n; + return this; +}; + +function _getMaxListeners(that) { + if (that._maxListeners === undefined) + return EventEmitter.defaultMaxListeners; + return that._maxListeners; +} + +EventEmitter.prototype.getMaxListeners = function getMaxListeners() { + return _getMaxListeners(this); +}; + +EventEmitter.prototype.emit = function emit(type) { + var args = []; + for (var i = 1; i < arguments.length; i++) args.push(arguments[i]); + var doError = (type === 'error'); + + var events = this._events; + if (events !== undefined) + doError = (doError && events.error === undefined); + else if (!doError) + return false; + + // If there is no 'error' event listener then throw. + if (doError) { + var er; + if (args.length > 0) + er = args[0]; + if (er instanceof Error) { + // Note: The comments on the `throw` lines are intentional, they show + // up in Node's output if this results in an unhandled exception. + throw er; // Unhandled 'error' event + } + // At least give some kind of context to the user + var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : '')); + err.context = er; + throw err; // Unhandled 'error' event + } + + var handler = events[type]; + + if (handler === undefined) + return false; + + if (typeof handler === 'function') { + ReflectApply(handler, this, args); + } else { + var len = handler.length; + var listeners = arrayClone(handler, len); + for (var i = 0; i < len; ++i) + ReflectApply(listeners[i], this, args); + } + + return true; +}; + +function _addListener(target, type, listener, prepend) { + var m; + var events; + var existing; + + checkListener(listener); + + events = target._events; + if (events === undefined) { + events = target._events = Object.create(null); + target._eventsCount = 0; + } else { + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (events.newListener !== undefined) { + target.emit('newListener', type, + listener.listener ? listener.listener : listener); + + // Re-assign `events` because a newListener handler could have caused the + // this._events to be assigned to a new object + events = target._events; + } + existing = events[type]; + } + + if (existing === undefined) { + // Optimize the case of one listener. Don't need the extra array object. + existing = events[type] = listener; + ++target._eventsCount; + } else { + if (typeof existing === 'function') { + // Adding the second element, need to change to array. + existing = events[type] = + prepend ? [listener, existing] : [existing, listener]; + // If we've already got an array, just append. + } else if (prepend) { + existing.unshift(listener); + } else { + existing.push(listener); + } + + // Check for listener leak + m = _getMaxListeners(target); + if (m > 0 && existing.length > m && !existing.warned) { + existing.warned = true; + // No error code for this since it is a Warning + // eslint-disable-next-line no-restricted-syntax + var w = new Error('Possible EventEmitter memory leak detected. ' + + existing.length + ' ' + String(type) + ' listeners ' + + 'added. Use emitter.setMaxListeners() to ' + + 'increase limit'); + w.name = 'MaxListenersExceededWarning'; + w.emitter = target; + w.type = type; + w.count = existing.length; + ProcessEmitWarning(w); + } + } + + return target; +} + +EventEmitter.prototype.addListener = function addListener(type, listener) { + return _addListener(this, type, listener, false); +}; + +EventEmitter.prototype.on = EventEmitter.prototype.addListener; + +EventEmitter.prototype.prependListener = + function prependListener(type, listener) { + return _addListener(this, type, listener, true); + }; + +function onceWrapper() { + if (!this.fired) { + this.target.removeListener(this.type, this.wrapFn); + this.fired = true; + if (arguments.length === 0) + return this.listener.call(this.target); + return this.listener.apply(this.target, arguments); + } +} + +function _onceWrap(target, type, listener) { + var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener }; + var wrapped = onceWrapper.bind(state); + wrapped.listener = listener; + state.wrapFn = wrapped; + return wrapped; +} + +EventEmitter.prototype.once = function once(type, listener) { + checkListener(listener); + this.on(type, _onceWrap(this, type, listener)); + return this; +}; + +EventEmitter.prototype.prependOnceListener = + function prependOnceListener(type, listener) { + checkListener(listener); + this.prependListener(type, _onceWrap(this, type, listener)); + return this; + }; + +// Emits a 'removeListener' event if and only if the listener was removed. +EventEmitter.prototype.removeListener = + function removeListener(type, listener) { + var list, events, position, i, originalListener; + + checkListener(listener); + + events = this._events; + if (events === undefined) + return this; + + list = events[type]; + if (list === undefined) + return this; + + if (list === listener || list.listener === listener) { + if (--this._eventsCount === 0) + this._events = Object.create(null); + else { + delete events[type]; + if (events.removeListener) + this.emit('removeListener', type, list.listener || listener); + } + } else if (typeof list !== 'function') { + position = -1; + + for (i = list.length - 1; i >= 0; i--) { + if (list[i] === listener || list[i].listener === listener) { + originalListener = list[i].listener; + position = i; + break; + } + } + + if (position < 0) + return this; + + if (position === 0) + list.shift(); + else { + spliceOne(list, position); + } + + if (list.length === 1) + events[type] = list[0]; + + if (events.removeListener !== undefined) + this.emit('removeListener', type, originalListener || listener); + } + + return this; + }; + +EventEmitter.prototype.off = EventEmitter.prototype.removeListener; + +EventEmitter.prototype.removeAllListeners = + function removeAllListeners(type) { + var listeners, events, i; + + events = this._events; + if (events === undefined) + return this; + + // not listening for removeListener, no need to emit + if (events.removeListener === undefined) { + if (arguments.length === 0) { + this._events = Object.create(null); + this._eventsCount = 0; + } else if (events[type] !== undefined) { + if (--this._eventsCount === 0) + this._events = Object.create(null); + else + delete events[type]; + } + return this; + } + + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + var keys = Object.keys(events); + var key; + for (i = 0; i < keys.length; ++i) { + key = keys[i]; + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = Object.create(null); + this._eventsCount = 0; + return this; + } + + listeners = events[type]; + + if (typeof listeners === 'function') { + this.removeListener(type, listeners); + } else if (listeners !== undefined) { + // LIFO order + for (i = listeners.length - 1; i >= 0; i--) { + this.removeListener(type, listeners[i]); + } + } + + return this; + }; + +function _listeners(target, type, unwrap) { + var events = target._events; + + if (events === undefined) + return []; + + var evlistener = events[type]; + if (evlistener === undefined) + return []; + + if (typeof evlistener === 'function') + return unwrap ? [evlistener.listener || evlistener] : [evlistener]; + + return unwrap ? + unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length); +} + +EventEmitter.prototype.listeners = function listeners(type) { + return _listeners(this, type, true); +}; + +EventEmitter.prototype.rawListeners = function rawListeners(type) { + return _listeners(this, type, false); +}; + +EventEmitter.listenerCount = function(emitter, type) { + if (typeof emitter.listenerCount === 'function') { + return emitter.listenerCount(type); + } else { + return listenerCount.call(emitter, type); + } +}; + +EventEmitter.prototype.listenerCount = listenerCount; +function listenerCount(type) { + var events = this._events; + + if (events !== undefined) { + var evlistener = events[type]; + + if (typeof evlistener === 'function') { + return 1; + } else if (evlistener !== undefined) { + return evlistener.length; + } + } + + return 0; +} + +EventEmitter.prototype.eventNames = function eventNames() { + return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : []; +}; + +function arrayClone(arr, n) { + var copy = new Array(n); + for (var i = 0; i < n; ++i) + copy[i] = arr[i]; + return copy; +} + +function spliceOne(list, index) { + for (; index + 1 < list.length; index++) + list[index] = list[index + 1]; + list.pop(); +} + +function unwrapListeners(arr) { + var ret = new Array(arr.length); + for (var i = 0; i < ret.length; ++i) { + ret[i] = arr[i].listener || arr[i]; + } + return ret; +} + +function once(emitter, name) { + return new Promise(function (resolve, reject) { + function eventListener() { + if (errorListener !== undefined) { + emitter.removeListener('error', errorListener); + } + resolve([].slice.call(arguments)); + }; + var errorListener; + + // Adding an error listener is not optional because + // if an error is thrown on an event emitter we cannot + // guarantee that the actual event we are waiting will + // be fired. The result could be a silent way to create + // memory or file descriptor leaks, which is something + // we should avoid. + if (name !== 'error') { + errorListener = function errorListener(err) { + emitter.removeListener(name, eventListener); + reject(err); + }; + + emitter.once('error', errorListener); + } + + emitter.once(name, eventListener); + }); +} + + +/***/ }), + +/***/ "./node_modules/html-entities/lib/html4-entities.js": +/*!**********************************************************!*\ + !*** ./node_modules/html-entities/lib/html4-entities.js ***! + \**********************************************************/ +/***/ ((__unused_webpack_module, exports, __webpack_require__) => { + +"use strict"; + +Object.defineProperty(exports, "__esModule", ({ value: true })); +var surrogate_pairs_1 = __webpack_require__(/*! ./surrogate-pairs */ "./node_modules/html-entities/lib/surrogate-pairs.js"); +var HTML_ALPHA = ['apos', 'nbsp', 'iexcl', 'cent', 'pound', 'curren', 'yen', 'brvbar', 'sect', 'uml', 'copy', 'ordf', 'laquo', 'not', 'shy', 'reg', 'macr', 'deg', 'plusmn', 'sup2', 'sup3', 'acute', 'micro', 'para', 'middot', 'cedil', 'sup1', 'ordm', 'raquo', 'frac14', 'frac12', 'frac34', 'iquest', 'Agrave', 'Aacute', 'Acirc', 'Atilde', 'Auml', 'Aring', 'AElig', 'Ccedil', 'Egrave', 'Eacute', 'Ecirc', 'Euml', 'Igrave', 'Iacute', 'Icirc', 'Iuml', 'ETH', 'Ntilde', 'Ograve', 'Oacute', 'Ocirc', 'Otilde', 'Ouml', 'times', 'Oslash', 'Ugrave', 'Uacute', 'Ucirc', 'Uuml', 'Yacute', 'THORN', 'szlig', 'agrave', 'aacute', 'acirc', 'atilde', 'auml', 'aring', 'aelig', 'ccedil', 'egrave', 'eacute', 'ecirc', 'euml', 'igrave', 'iacute', 'icirc', 'iuml', 'eth', 'ntilde', 'ograve', 'oacute', 'ocirc', 'otilde', 'ouml', 'divide', 'oslash', 'ugrave', 'uacute', 'ucirc', 'uuml', 'yacute', 'thorn', 'yuml', 'quot', 'amp', 'lt', 'gt', 'OElig', 'oelig', 'Scaron', 'scaron', 'Yuml', 'circ', 'tilde', 'ensp', 'emsp', 'thinsp', 'zwnj', 'zwj', 'lrm', 'rlm', 'ndash', 'mdash', 'lsquo', 'rsquo', 'sbquo', 'ldquo', 'rdquo', 'bdquo', 'dagger', 'Dagger', 'permil', 'lsaquo', 'rsaquo', 'euro', 'fnof', 'Alpha', 'Beta', 'Gamma', 'Delta', 'Epsilon', 'Zeta', 'Eta', 'Theta', 'Iota', 'Kappa', 'Lambda', 'Mu', 'Nu', 'Xi', 'Omicron', 'Pi', 'Rho', 'Sigma', 'Tau', 'Upsilon', 'Phi', 'Chi', 'Psi', 'Omega', 'alpha', 'beta', 'gamma', 'delta', 'epsilon', 'zeta', 'eta', 'theta', 'iota', 'kappa', 'lambda', 'mu', 'nu', 'xi', 'omicron', 'pi', 'rho', 'sigmaf', 'sigma', 'tau', 'upsilon', 'phi', 'chi', 'psi', 'omega', 'thetasym', 'upsih', 'piv', 'bull', 'hellip', 'prime', 'Prime', 'oline', 'frasl', 'weierp', 'image', 'real', 'trade', 'alefsym', 'larr', 'uarr', 'rarr', 'darr', 'harr', 'crarr', 'lArr', 'uArr', 'rArr', 'dArr', 'hArr', 'forall', 'part', 'exist', 'empty', 'nabla', 'isin', 'notin', 'ni', 'prod', 'sum', 'minus', 'lowast', 'radic', 'prop', 'infin', 'ang', 'and', 'or', 'cap', 'cup', 'int', 'there4', 'sim', 'cong', 'asymp', 'ne', 'equiv', 'le', 'ge', 'sub', 'sup', 'nsub', 'sube', 'supe', 'oplus', 'otimes', 'perp', 'sdot', 'lceil', 'rceil', 'lfloor', 'rfloor', 'lang', 'rang', 'loz', 'spades', 'clubs', 'hearts', 'diams']; +var HTML_CODES = [39, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 34, 38, 60, 62, 338, 339, 352, 353, 376, 710, 732, 8194, 8195, 8201, 8204, 8205, 8206, 8207, 8211, 8212, 8216, 8217, 8218, 8220, 8221, 8222, 8224, 8225, 8240, 8249, 8250, 8364, 402, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 931, 932, 933, 934, 935, 936, 937, 945, 946, 947, 948, 949, 950, 951, 952, 953, 954, 955, 956, 957, 958, 959, 960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 977, 978, 982, 8226, 8230, 8242, 8243, 8254, 8260, 8472, 8465, 8476, 8482, 8501, 8592, 8593, 8594, 8595, 8596, 8629, 8656, 8657, 8658, 8659, 8660, 8704, 8706, 8707, 8709, 8711, 8712, 8713, 8715, 8719, 8721, 8722, 8727, 8730, 8733, 8734, 8736, 8743, 8744, 8745, 8746, 8747, 8756, 8764, 8773, 8776, 8800, 8801, 8804, 8805, 8834, 8835, 8836, 8838, 8839, 8853, 8855, 8869, 8901, 8968, 8969, 8970, 8971, 9001, 9002, 9674, 9824, 9827, 9829, 9830]; +var alphaIndex = {}; +var numIndex = {}; +(function () { + var i = 0; + var length = HTML_ALPHA.length; + while (i < length) { + var a = HTML_ALPHA[i]; + var c = HTML_CODES[i]; + alphaIndex[a] = String.fromCharCode(c); + numIndex[c] = a; + i++; + } +})(); +var Html4Entities = /** @class */ (function () { + function Html4Entities() { + } + Html4Entities.prototype.decode = function (str) { + if (!str || !str.length) { + return ''; + } + return str.replace(/&(#?[\w\d]+);?/g, function (s, entity) { + var chr; + if (entity.charAt(0) === "#") { + var code = entity.charAt(1).toLowerCase() === 'x' ? + parseInt(entity.substr(2), 16) : + parseInt(entity.substr(1)); + if (!isNaN(code) || code >= -32768) { + if (code <= 65535) { + chr = String.fromCharCode(code); + } + else { + chr = surrogate_pairs_1.fromCodePoint(code); + } + } + } + else { + chr = alphaIndex[entity]; + } + return chr || s; + }); + }; + Html4Entities.decode = function (str) { + return new Html4Entities().decode(str); + }; + Html4Entities.prototype.encode = function (str) { + if (!str || !str.length) { + return ''; + } + var strLength = str.length; + var result = ''; + var i = 0; + while (i < strLength) { + var alpha = numIndex[str.charCodeAt(i)]; + result += alpha ? "&" + alpha + ";" : str.charAt(i); + i++; + } + return result; + }; + Html4Entities.encode = function (str) { + return new Html4Entities().encode(str); + }; + Html4Entities.prototype.encodeNonUTF = function (str) { + if (!str || !str.length) { + return ''; + } + var strLength = str.length; + var result = ''; + var i = 0; + while (i < strLength) { + var cc = str.charCodeAt(i); + var alpha = numIndex[cc]; + if (alpha) { + result += "&" + alpha + ";"; + } + else if (cc < 32 || cc > 126) { + if (cc >= surrogate_pairs_1.highSurrogateFrom && cc <= surrogate_pairs_1.highSurrogateTo) { + result += '&#' + surrogate_pairs_1.getCodePoint(str, i) + ';'; + i++; + } + else { + result += '&#' + cc + ';'; + } + } + else { + result += str.charAt(i); + } + i++; + } + return result; + }; + Html4Entities.encodeNonUTF = function (str) { + return new Html4Entities().encodeNonUTF(str); + }; + Html4Entities.prototype.encodeNonASCII = function (str) { + if (!str || !str.length) { + return ''; + } + var strLength = str.length; + var result = ''; + var i = 0; + while (i < strLength) { + var c = str.charCodeAt(i); + if (c <= 255) { + result += str[i++]; + continue; + } + if (c >= surrogate_pairs_1.highSurrogateFrom && c <= surrogate_pairs_1.highSurrogateTo) { + result += '&#' + surrogate_pairs_1.getCodePoint(str, i) + ';'; + i++; + } + else { + result += '&#' + c + ';'; + } + i++; + } + return result; + }; + Html4Entities.encodeNonASCII = function (str) { + return new Html4Entities().encodeNonASCII(str); + }; + return Html4Entities; +}()); +exports.Html4Entities = Html4Entities; + + +/***/ }), + +/***/ "./node_modules/html-entities/lib/html5-entities.js": +/*!**********************************************************!*\ + !*** ./node_modules/html-entities/lib/html5-entities.js ***! + \**********************************************************/ +/***/ ((__unused_webpack_module, exports, __webpack_require__) => { + +"use strict"; + +Object.defineProperty(exports, "__esModule", ({ value: true })); +var surrogate_pairs_1 = __webpack_require__(/*! ./surrogate-pairs */ "./node_modules/html-entities/lib/surrogate-pairs.js"); +var ENTITIES = [['Aacute', [193]], ['aacute', [225]], ['Abreve', [258]], ['abreve', [259]], ['ac', [8766]], ['acd', [8767]], ['acE', [8766, 819]], ['Acirc', [194]], ['acirc', [226]], ['acute', [180]], ['Acy', [1040]], ['acy', [1072]], ['AElig', [198]], ['aelig', [230]], ['af', [8289]], ['Afr', [120068]], ['afr', [120094]], ['Agrave', [192]], ['agrave', [224]], ['alefsym', [8501]], ['aleph', [8501]], ['Alpha', [913]], ['alpha', [945]], ['Amacr', [256]], ['amacr', [257]], ['amalg', [10815]], ['amp', [38]], ['AMP', [38]], ['andand', [10837]], ['And', [10835]], ['and', [8743]], ['andd', [10844]], ['andslope', [10840]], ['andv', [10842]], ['ang', [8736]], ['ange', [10660]], ['angle', [8736]], ['angmsdaa', [10664]], ['angmsdab', [10665]], ['angmsdac', [10666]], ['angmsdad', [10667]], ['angmsdae', [10668]], ['angmsdaf', [10669]], ['angmsdag', [10670]], ['angmsdah', [10671]], ['angmsd', [8737]], ['angrt', [8735]], ['angrtvb', [8894]], ['angrtvbd', [10653]], ['angsph', [8738]], ['angst', [197]], ['angzarr', [9084]], ['Aogon', [260]], ['aogon', [261]], ['Aopf', [120120]], ['aopf', [120146]], ['apacir', [10863]], ['ap', [8776]], ['apE', [10864]], ['ape', [8778]], ['apid', [8779]], ['apos', [39]], ['ApplyFunction', [8289]], ['approx', [8776]], ['approxeq', [8778]], ['Aring', [197]], ['aring', [229]], ['Ascr', [119964]], ['ascr', [119990]], ['Assign', [8788]], ['ast', [42]], ['asymp', [8776]], ['asympeq', [8781]], ['Atilde', [195]], ['atilde', [227]], ['Auml', [196]], ['auml', [228]], ['awconint', [8755]], ['awint', [10769]], ['backcong', [8780]], ['backepsilon', [1014]], ['backprime', [8245]], ['backsim', [8765]], ['backsimeq', [8909]], ['Backslash', [8726]], ['Barv', [10983]], ['barvee', [8893]], ['barwed', [8965]], ['Barwed', [8966]], ['barwedge', [8965]], ['bbrk', [9141]], ['bbrktbrk', [9142]], ['bcong', [8780]], ['Bcy', [1041]], ['bcy', [1073]], ['bdquo', [8222]], ['becaus', [8757]], ['because', [8757]], ['Because', [8757]], ['bemptyv', [10672]], ['bepsi', [1014]], ['bernou', [8492]], ['Bernoullis', [8492]], ['Beta', [914]], ['beta', [946]], ['beth', [8502]], ['between', [8812]], ['Bfr', [120069]], ['bfr', [120095]], ['bigcap', [8898]], ['bigcirc', [9711]], ['bigcup', [8899]], ['bigodot', [10752]], ['bigoplus', [10753]], ['bigotimes', [10754]], ['bigsqcup', [10758]], ['bigstar', [9733]], ['bigtriangledown', [9661]], ['bigtriangleup', [9651]], ['biguplus', [10756]], ['bigvee', [8897]], ['bigwedge', [8896]], ['bkarow', [10509]], ['blacklozenge', [10731]], ['blacksquare', [9642]], ['blacktriangle', [9652]], ['blacktriangledown', [9662]], ['blacktriangleleft', [9666]], ['blacktriangleright', [9656]], ['blank', [9251]], ['blk12', [9618]], ['blk14', [9617]], ['blk34', [9619]], ['block', [9608]], ['bne', [61, 8421]], ['bnequiv', [8801, 8421]], ['bNot', [10989]], ['bnot', [8976]], ['Bopf', [120121]], ['bopf', [120147]], ['bot', [8869]], ['bottom', [8869]], ['bowtie', [8904]], ['boxbox', [10697]], ['boxdl', [9488]], ['boxdL', [9557]], ['boxDl', [9558]], ['boxDL', [9559]], ['boxdr', [9484]], ['boxdR', [9554]], ['boxDr', [9555]], ['boxDR', [9556]], ['boxh', [9472]], ['boxH', [9552]], ['boxhd', [9516]], ['boxHd', [9572]], ['boxhD', [9573]], ['boxHD', [9574]], ['boxhu', [9524]], ['boxHu', [9575]], ['boxhU', [9576]], ['boxHU', [9577]], ['boxminus', [8863]], ['boxplus', [8862]], ['boxtimes', [8864]], ['boxul', [9496]], ['boxuL', [9563]], ['boxUl', [9564]], ['boxUL', [9565]], ['boxur', [9492]], ['boxuR', [9560]], ['boxUr', [9561]], ['boxUR', [9562]], ['boxv', [9474]], ['boxV', [9553]], ['boxvh', [9532]], ['boxvH', [9578]], ['boxVh', [9579]], ['boxVH', [9580]], ['boxvl', [9508]], ['boxvL', [9569]], ['boxVl', [9570]], ['boxVL', [9571]], ['boxvr', [9500]], ['boxvR', [9566]], ['boxVr', [9567]], ['boxVR', [9568]], ['bprime', [8245]], ['breve', [728]], ['Breve', [728]], ['brvbar', [166]], ['bscr', [119991]], ['Bscr', [8492]], ['bsemi', [8271]], ['bsim', [8765]], ['bsime', [8909]], ['bsolb', [10693]], ['bsol', [92]], ['bsolhsub', [10184]], ['bull', [8226]], ['bullet', [8226]], ['bump', [8782]], ['bumpE', [10926]], ['bumpe', [8783]], ['Bumpeq', [8782]], ['bumpeq', [8783]], ['Cacute', [262]], ['cacute', [263]], ['capand', [10820]], ['capbrcup', [10825]], ['capcap', [10827]], ['cap', [8745]], ['Cap', [8914]], ['capcup', [10823]], ['capdot', [10816]], ['CapitalDifferentialD', [8517]], ['caps', [8745, 65024]], ['caret', [8257]], ['caron', [711]], ['Cayleys', [8493]], ['ccaps', [10829]], ['Ccaron', [268]], ['ccaron', [269]], ['Ccedil', [199]], ['ccedil', [231]], ['Ccirc', [264]], ['ccirc', [265]], ['Cconint', [8752]], ['ccups', [10828]], ['ccupssm', [10832]], ['Cdot', [266]], ['cdot', [267]], ['cedil', [184]], ['Cedilla', [184]], ['cemptyv', [10674]], ['cent', [162]], ['centerdot', [183]], ['CenterDot', [183]], ['cfr', [120096]], ['Cfr', [8493]], ['CHcy', [1063]], ['chcy', [1095]], ['check', [10003]], ['checkmark', [10003]], ['Chi', [935]], ['chi', [967]], ['circ', [710]], ['circeq', [8791]], ['circlearrowleft', [8634]], ['circlearrowright', [8635]], ['circledast', [8859]], ['circledcirc', [8858]], ['circleddash', [8861]], ['CircleDot', [8857]], ['circledR', [174]], ['circledS', [9416]], ['CircleMinus', [8854]], ['CirclePlus', [8853]], ['CircleTimes', [8855]], ['cir', [9675]], ['cirE', [10691]], ['cire', [8791]], ['cirfnint', [10768]], ['cirmid', [10991]], ['cirscir', [10690]], ['ClockwiseContourIntegral', [8754]], ['clubs', [9827]], ['clubsuit', [9827]], ['colon', [58]], ['Colon', [8759]], ['Colone', [10868]], ['colone', [8788]], ['coloneq', [8788]], ['comma', [44]], ['commat', [64]], ['comp', [8705]], ['compfn', [8728]], ['complement', [8705]], ['complexes', [8450]], ['cong', [8773]], ['congdot', [10861]], ['Congruent', [8801]], ['conint', [8750]], ['Conint', [8751]], ['ContourIntegral', [8750]], ['copf', [120148]], ['Copf', [8450]], ['coprod', [8720]], ['Coproduct', [8720]], ['copy', [169]], ['COPY', [169]], ['copysr', [8471]], ['CounterClockwiseContourIntegral', [8755]], ['crarr', [8629]], ['cross', [10007]], ['Cross', [10799]], ['Cscr', [119966]], ['cscr', [119992]], ['csub', [10959]], ['csube', [10961]], ['csup', [10960]], ['csupe', [10962]], ['ctdot', [8943]], ['cudarrl', [10552]], ['cudarrr', [10549]], ['cuepr', [8926]], ['cuesc', [8927]], ['cularr', [8630]], ['cularrp', [10557]], ['cupbrcap', [10824]], ['cupcap', [10822]], ['CupCap', [8781]], ['cup', [8746]], ['Cup', [8915]], ['cupcup', [10826]], ['cupdot', [8845]], ['cupor', [10821]], ['cups', [8746, 65024]], ['curarr', [8631]], ['curarrm', [10556]], ['curlyeqprec', [8926]], ['curlyeqsucc', [8927]], ['curlyvee', [8910]], ['curlywedge', [8911]], ['curren', [164]], ['curvearrowleft', [8630]], ['curvearrowright', [8631]], ['cuvee', [8910]], ['cuwed', [8911]], ['cwconint', [8754]], ['cwint', [8753]], ['cylcty', [9005]], ['dagger', [8224]], ['Dagger', [8225]], ['daleth', [8504]], ['darr', [8595]], ['Darr', [8609]], ['dArr', [8659]], ['dash', [8208]], ['Dashv', [10980]], ['dashv', [8867]], ['dbkarow', [10511]], ['dblac', [733]], ['Dcaron', [270]], ['dcaron', [271]], ['Dcy', [1044]], ['dcy', [1076]], ['ddagger', [8225]], ['ddarr', [8650]], ['DD', [8517]], ['dd', [8518]], ['DDotrahd', [10513]], ['ddotseq', [10871]], ['deg', [176]], ['Del', [8711]], ['Delta', [916]], ['delta', [948]], ['demptyv', [10673]], ['dfisht', [10623]], ['Dfr', [120071]], ['dfr', [120097]], ['dHar', [10597]], ['dharl', [8643]], ['dharr', [8642]], ['DiacriticalAcute', [180]], ['DiacriticalDot', [729]], ['DiacriticalDoubleAcute', [733]], ['DiacriticalGrave', [96]], ['DiacriticalTilde', [732]], ['diam', [8900]], ['diamond', [8900]], ['Diamond', [8900]], ['diamondsuit', [9830]], ['diams', [9830]], ['die', [168]], ['DifferentialD', [8518]], ['digamma', [989]], ['disin', [8946]], ['div', [247]], ['divide', [247]], ['divideontimes', [8903]], ['divonx', [8903]], ['DJcy', [1026]], ['djcy', [1106]], ['dlcorn', [8990]], ['dlcrop', [8973]], ['dollar', [36]], ['Dopf', [120123]], ['dopf', [120149]], ['Dot', [168]], ['dot', [729]], ['DotDot', [8412]], ['doteq', [8784]], ['doteqdot', [8785]], ['DotEqual', [8784]], ['dotminus', [8760]], ['dotplus', [8724]], ['dotsquare', [8865]], ['doublebarwedge', [8966]], ['DoubleContourIntegral', [8751]], ['DoubleDot', [168]], ['DoubleDownArrow', [8659]], ['DoubleLeftArrow', [8656]], ['DoubleLeftRightArrow', [8660]], ['DoubleLeftTee', [10980]], ['DoubleLongLeftArrow', [10232]], ['DoubleLongLeftRightArrow', [10234]], ['DoubleLongRightArrow', [10233]], ['DoubleRightArrow', [8658]], ['DoubleRightTee', [8872]], ['DoubleUpArrow', [8657]], ['DoubleUpDownArrow', [8661]], ['DoubleVerticalBar', [8741]], ['DownArrowBar', [10515]], ['downarrow', [8595]], ['DownArrow', [8595]], ['Downarrow', [8659]], ['DownArrowUpArrow', [8693]], ['DownBreve', [785]], ['downdownarrows', [8650]], ['downharpoonleft', [8643]], ['downharpoonright', [8642]], ['DownLeftRightVector', [10576]], ['DownLeftTeeVector', [10590]], ['DownLeftVectorBar', [10582]], ['DownLeftVector', [8637]], ['DownRightTeeVector', [10591]], ['DownRightVectorBar', [10583]], ['DownRightVector', [8641]], ['DownTeeArrow', [8615]], ['DownTee', [8868]], ['drbkarow', [10512]], ['drcorn', [8991]], ['drcrop', [8972]], ['Dscr', [119967]], ['dscr', [119993]], ['DScy', [1029]], ['dscy', [1109]], ['dsol', [10742]], ['Dstrok', [272]], ['dstrok', [273]], ['dtdot', [8945]], ['dtri', [9663]], ['dtrif', [9662]], ['duarr', [8693]], ['duhar', [10607]], ['dwangle', [10662]], ['DZcy', [1039]], ['dzcy', [1119]], ['dzigrarr', [10239]], ['Eacute', [201]], ['eacute', [233]], ['easter', [10862]], ['Ecaron', [282]], ['ecaron', [283]], ['Ecirc', [202]], ['ecirc', [234]], ['ecir', [8790]], ['ecolon', [8789]], ['Ecy', [1069]], ['ecy', [1101]], ['eDDot', [10871]], ['Edot', [278]], ['edot', [279]], ['eDot', [8785]], ['ee', [8519]], ['efDot', [8786]], ['Efr', [120072]], ['efr', [120098]], ['eg', [10906]], ['Egrave', [200]], ['egrave', [232]], ['egs', [10902]], ['egsdot', [10904]], ['el', [10905]], ['Element', [8712]], ['elinters', [9191]], ['ell', [8467]], ['els', [10901]], ['elsdot', [10903]], ['Emacr', [274]], ['emacr', [275]], ['empty', [8709]], ['emptyset', [8709]], ['EmptySmallSquare', [9723]], ['emptyv', [8709]], ['EmptyVerySmallSquare', [9643]], ['emsp13', [8196]], ['emsp14', [8197]], ['emsp', [8195]], ['ENG', [330]], ['eng', [331]], ['ensp', [8194]], ['Eogon', [280]], ['eogon', [281]], ['Eopf', [120124]], ['eopf', [120150]], ['epar', [8917]], ['eparsl', [10723]], ['eplus', [10865]], ['epsi', [949]], ['Epsilon', [917]], ['epsilon', [949]], ['epsiv', [1013]], ['eqcirc', [8790]], ['eqcolon', [8789]], ['eqsim', [8770]], ['eqslantgtr', [10902]], ['eqslantless', [10901]], ['Equal', [10869]], ['equals', [61]], ['EqualTilde', [8770]], ['equest', [8799]], ['Equilibrium', [8652]], ['equiv', [8801]], ['equivDD', [10872]], ['eqvparsl', [10725]], ['erarr', [10609]], ['erDot', [8787]], ['escr', [8495]], ['Escr', [8496]], ['esdot', [8784]], ['Esim', [10867]], ['esim', [8770]], ['Eta', [919]], ['eta', [951]], ['ETH', [208]], ['eth', [240]], ['Euml', [203]], ['euml', [235]], ['euro', [8364]], ['excl', [33]], ['exist', [8707]], ['Exists', [8707]], ['expectation', [8496]], ['exponentiale', [8519]], ['ExponentialE', [8519]], ['fallingdotseq', [8786]], ['Fcy', [1060]], ['fcy', [1092]], ['female', [9792]], ['ffilig', [64259]], ['fflig', [64256]], ['ffllig', [64260]], ['Ffr', [120073]], ['ffr', [120099]], ['filig', [64257]], ['FilledSmallSquare', [9724]], ['FilledVerySmallSquare', [9642]], ['fjlig', [102, 106]], ['flat', [9837]], ['fllig', [64258]], ['fltns', [9649]], ['fnof', [402]], ['Fopf', [120125]], ['fopf', [120151]], ['forall', [8704]], ['ForAll', [8704]], ['fork', [8916]], ['forkv', [10969]], ['Fouriertrf', [8497]], ['fpartint', [10765]], ['frac12', [189]], ['frac13', [8531]], ['frac14', [188]], ['frac15', [8533]], ['frac16', [8537]], ['frac18', [8539]], ['frac23', [8532]], ['frac25', [8534]], ['frac34', [190]], ['frac35', [8535]], ['frac38', [8540]], ['frac45', [8536]], ['frac56', [8538]], ['frac58', [8541]], ['frac78', [8542]], ['frasl', [8260]], ['frown', [8994]], ['fscr', [119995]], ['Fscr', [8497]], ['gacute', [501]], ['Gamma', [915]], ['gamma', [947]], ['Gammad', [988]], ['gammad', [989]], ['gap', [10886]], ['Gbreve', [286]], ['gbreve', [287]], ['Gcedil', [290]], ['Gcirc', [284]], ['gcirc', [285]], ['Gcy', [1043]], ['gcy', [1075]], ['Gdot', [288]], ['gdot', [289]], ['ge', [8805]], ['gE', [8807]], ['gEl', [10892]], ['gel', [8923]], ['geq', [8805]], ['geqq', [8807]], ['geqslant', [10878]], ['gescc', [10921]], ['ges', [10878]], ['gesdot', [10880]], ['gesdoto', [10882]], ['gesdotol', [10884]], ['gesl', [8923, 65024]], ['gesles', [10900]], ['Gfr', [120074]], ['gfr', [120100]], ['gg', [8811]], ['Gg', [8921]], ['ggg', [8921]], ['gimel', [8503]], ['GJcy', [1027]], ['gjcy', [1107]], ['gla', [10917]], ['gl', [8823]], ['glE', [10898]], ['glj', [10916]], ['gnap', 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['iinfin', [10716]], ['iiota', [8489]], ['IJlig', [306]], ['ijlig', [307]], ['Imacr', [298]], ['imacr', [299]], ['image', [8465]], ['ImaginaryI', [8520]], ['imagline', [8464]], ['imagpart', [8465]], ['imath', [305]], ['Im', [8465]], ['imof', [8887]], ['imped', [437]], ['Implies', [8658]], ['incare', [8453]], ['in', [8712]], ['infin', [8734]], ['infintie', [10717]], ['inodot', [305]], ['intcal', [8890]], ['int', [8747]], ['Int', [8748]], ['integers', [8484]], ['Integral', [8747]], ['intercal', [8890]], ['Intersection', [8898]], ['intlarhk', [10775]], ['intprod', [10812]], ['InvisibleComma', [8291]], ['InvisibleTimes', [8290]], ['IOcy', [1025]], ['iocy', [1105]], ['Iogon', [302]], ['iogon', [303]], ['Iopf', [120128]], ['iopf', [120154]], ['Iota', [921]], ['iota', [953]], ['iprod', [10812]], ['iquest', [191]], ['iscr', [119998]], ['Iscr', [8464]], ['isin', [8712]], ['isindot', [8949]], ['isinE', [8953]], ['isins', [8948]], ['isinsv', [8947]], ['isinv', [8712]], ['it', [8290]], ['Itilde', 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['NotLess', [8814]], ['NotLessEqual', [8816]], ['NotLessGreater', [8824]], ['NotLessLess', [8810, 824]], ['NotLessSlantEqual', [10877, 824]], ['NotLessTilde', [8820]], ['NotNestedGreaterGreater', [10914, 824]], ['NotNestedLessLess', [10913, 824]], ['notni', [8716]], ['notniva', [8716]], ['notnivb', [8958]], ['notnivc', [8957]], ['NotPrecedes', [8832]], ['NotPrecedesEqual', [10927, 824]], ['NotPrecedesSlantEqual', [8928]], ['NotReverseElement', [8716]], ['NotRightTriangleBar', [10704, 824]], ['NotRightTriangle', [8939]], ['NotRightTriangleEqual', [8941]], ['NotSquareSubset', [8847, 824]], ['NotSquareSubsetEqual', [8930]], ['NotSquareSuperset', [8848, 824]], ['NotSquareSupersetEqual', [8931]], ['NotSubset', [8834, 8402]], ['NotSubsetEqual', [8840]], ['NotSucceeds', [8833]], ['NotSucceedsEqual', [10928, 824]], ['NotSucceedsSlantEqual', [8929]], ['NotSucceedsTilde', [8831, 824]], ['NotSuperset', [8835, 8402]], ['NotSupersetEqual', [8841]], ['NotTilde', [8769]], ['NotTildeEqual', [8772]], 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824]], ['nsupe', [8841]], ['nsupset', [8835, 8402]], ['nsupseteq', [8841]], ['nsupseteqq', [10950, 824]], ['ntgl', [8825]], ['Ntilde', [209]], ['ntilde', [241]], ['ntlg', [8824]], ['ntriangleleft', [8938]], ['ntrianglelefteq', [8940]], ['ntriangleright', [8939]], ['ntrianglerighteq', [8941]], ['Nu', [925]], ['nu', [957]], ['num', [35]], ['numero', [8470]], ['numsp', [8199]], ['nvap', [8781, 8402]], ['nvdash', [8876]], ['nvDash', [8877]], ['nVdash', [8878]], ['nVDash', [8879]], ['nvge', [8805, 8402]], ['nvgt', [62, 8402]], ['nvHarr', [10500]], ['nvinfin', [10718]], ['nvlArr', [10498]], ['nvle', [8804, 8402]], ['nvlt', [60, 8402]], ['nvltrie', [8884, 8402]], ['nvrArr', [10499]], ['nvrtrie', [8885, 8402]], ['nvsim', [8764, 8402]], ['nwarhk', [10531]], ['nwarr', [8598]], ['nwArr', [8662]], ['nwarrow', [8598]], ['nwnear', [10535]], ['Oacute', [211]], ['oacute', [243]], ['oast', [8859]], ['Ocirc', [212]], ['ocirc', [244]], ['ocir', [8858]], ['Ocy', [1054]], ['ocy', [1086]], ['odash', 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['PlusMinus', [177]], ['plusmn', [177]], ['plussim', [10790]], ['plustwo', [10791]], ['pm', [177]], ['Poincareplane', [8460]], ['pointint', [10773]], ['popf', [120161]], ['Popf', [8473]], ['pound', [163]], ['prap', [10935]], ['Pr', [10939]], ['pr', [8826]], ['prcue', [8828]], ['precapprox', [10935]], ['prec', [8826]], ['preccurlyeq', [8828]], ['Precedes', [8826]], ['PrecedesEqual', [10927]], ['PrecedesSlantEqual', [8828]], ['PrecedesTilde', [8830]], ['preceq', [10927]], ['precnapprox', [10937]], ['precneqq', [10933]], ['precnsim', [8936]], ['pre', [10927]], ['prE', [10931]], ['precsim', [8830]], ['prime', [8242]], ['Prime', [8243]], ['primes', [8473]], ['prnap', [10937]], ['prnE', [10933]], ['prnsim', [8936]], ['prod', [8719]], ['Product', [8719]], ['profalar', [9006]], ['profline', [8978]], ['profsurf', [8979]], ['prop', [8733]], ['Proportional', [8733]], ['Proportion', [8759]], ['propto', [8733]], ['prsim', [8830]], ['prurel', [8880]], ['Pscr', [119979]], ['pscr', [120005]], ['Psi', 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['rbbrk', [10099]], ['rbrace', [125]], ['rbrack', [93]], ['rbrke', [10636]], ['rbrksld', [10638]], ['rbrkslu', [10640]], ['Rcaron', [344]], ['rcaron', [345]], ['Rcedil', [342]], ['rcedil', [343]], ['rceil', [8969]], ['rcub', [125]], ['Rcy', [1056]], ['rcy', [1088]], ['rdca', [10551]], ['rdldhar', [10601]], ['rdquo', [8221]], ['rdquor', [8221]], ['CloseCurlyDoubleQuote', [8221]], ['rdsh', [8627]], ['real', [8476]], ['realine', [8475]], ['realpart', [8476]], ['reals', [8477]], ['Re', [8476]], ['rect', [9645]], ['reg', [174]], ['REG', [174]], ['ReverseElement', [8715]], ['ReverseEquilibrium', [8651]], ['ReverseUpEquilibrium', [10607]], ['rfisht', [10621]], ['rfloor', [8971]], ['rfr', [120111]], ['Rfr', [8476]], ['rHar', [10596]], ['rhard', [8641]], ['rharu', [8640]], ['rharul', [10604]], ['Rho', [929]], ['rho', [961]], ['rhov', [1009]], ['RightAngleBracket', [10217]], ['RightArrowBar', [8677]], ['rightarrow', [8594]], ['RightArrow', [8594]], ['Rightarrow', [8658]], ['RightArrowLeftArrow', 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[10630]], ['ropf', [120163]], ['Ropf', [8477]], ['roplus', [10798]], ['rotimes', [10805]], ['RoundImplies', [10608]], ['rpar', [41]], ['rpargt', [10644]], ['rppolint', [10770]], ['rrarr', [8649]], ['Rrightarrow', [8667]], ['rsaquo', [8250]], ['rscr', [120007]], ['Rscr', [8475]], ['rsh', [8625]], ['Rsh', [8625]], ['rsqb', [93]], ['rsquo', [8217]], ['rsquor', [8217]], ['CloseCurlyQuote', [8217]], ['rthree', [8908]], ['rtimes', [8906]], ['rtri', [9657]], ['rtrie', [8885]], ['rtrif', [9656]], ['rtriltri', [10702]], ['RuleDelayed', [10740]], ['ruluhar', [10600]], ['rx', [8478]], ['Sacute', [346]], ['sacute', [347]], ['sbquo', [8218]], ['scap', [10936]], ['Scaron', [352]], ['scaron', [353]], ['Sc', [10940]], ['sc', [8827]], ['sccue', [8829]], ['sce', [10928]], ['scE', [10932]], ['Scedil', [350]], ['scedil', [351]], ['Scirc', [348]], ['scirc', [349]], ['scnap', [10938]], ['scnE', [10934]], ['scnsim', [8937]], ['scpolint', [10771]], ['scsim', [8831]], ['Scy', [1057]], ['scy', [1089]], ['sdotb', [8865]], ['sdot', [8901]], ['sdote', [10854]], ['searhk', [10533]], ['searr', [8600]], ['seArr', [8664]], ['searrow', [8600]], ['sect', [167]], ['semi', [59]], ['seswar', [10537]], ['setminus', [8726]], ['setmn', [8726]], ['sext', [10038]], ['Sfr', [120086]], ['sfr', [120112]], ['sfrown', [8994]], ['sharp', [9839]], ['SHCHcy', [1065]], ['shchcy', [1097]], ['SHcy', [1064]], ['shcy', [1096]], ['ShortDownArrow', [8595]], ['ShortLeftArrow', [8592]], ['shortmid', [8739]], ['shortparallel', [8741]], ['ShortRightArrow', [8594]], ['ShortUpArrow', [8593]], ['shy', [173]], ['Sigma', [931]], ['sigma', [963]], ['sigmaf', [962]], ['sigmav', [962]], ['sim', [8764]], ['simdot', [10858]], ['sime', [8771]], ['simeq', [8771]], ['simg', [10910]], ['simgE', [10912]], ['siml', [10909]], ['simlE', [10911]], ['simne', [8774]], ['simplus', [10788]], ['simrarr', [10610]], ['slarr', [8592]], ['SmallCircle', [8728]], ['smallsetminus', [8726]], ['smashp', [10803]], ['smeparsl', [10724]], ['smid', [8739]], ['smile', [8995]], ['smt', [10922]], ['smte', [10924]], ['smtes', [10924, 65024]], ['SOFTcy', [1068]], ['softcy', [1100]], ['solbar', [9023]], ['solb', [10692]], ['sol', [47]], ['Sopf', [120138]], ['sopf', [120164]], ['spades', [9824]], ['spadesuit', [9824]], ['spar', [8741]], ['sqcap', [8851]], ['sqcaps', [8851, 65024]], ['sqcup', [8852]], ['sqcups', [8852, 65024]], ['Sqrt', [8730]], ['sqsub', [8847]], ['sqsube', [8849]], ['sqsubset', [8847]], ['sqsubseteq', [8849]], ['sqsup', [8848]], ['sqsupe', [8850]], ['sqsupset', [8848]], ['sqsupseteq', [8850]], ['square', [9633]], ['Square', [9633]], ['SquareIntersection', [8851]], ['SquareSubset', [8847]], ['SquareSubsetEqual', [8849]], ['SquareSuperset', [8848]], ['SquareSupersetEqual', [8850]], ['SquareUnion', [8852]], ['squarf', [9642]], ['squ', [9633]], ['squf', [9642]], ['srarr', [8594]], ['Sscr', [119982]], ['sscr', [120008]], ['ssetmn', [8726]], ['ssmile', [8995]], ['sstarf', [8902]], ['Star', [8902]], ['star', [9734]], ['starf', [9733]], ['straightepsilon', [1013]], ['straightphi', [981]], ['strns', [175]], ['sub', [8834]], ['Sub', [8912]], ['subdot', [10941]], ['subE', [10949]], ['sube', [8838]], ['subedot', [10947]], ['submult', [10945]], ['subnE', [10955]], ['subne', [8842]], ['subplus', [10943]], ['subrarr', [10617]], ['subset', [8834]], ['Subset', [8912]], ['subseteq', [8838]], ['subseteqq', [10949]], ['SubsetEqual', [8838]], ['subsetneq', [8842]], ['subsetneqq', [10955]], ['subsim', [10951]], ['subsub', [10965]], ['subsup', [10963]], ['succapprox', [10936]], ['succ', [8827]], ['succcurlyeq', [8829]], ['Succeeds', [8827]], ['SucceedsEqual', [10928]], ['SucceedsSlantEqual', [8829]], ['SucceedsTilde', [8831]], ['succeq', [10928]], ['succnapprox', [10938]], ['succneqq', [10934]], ['succnsim', [8937]], ['succsim', [8831]], ['SuchThat', [8715]], ['sum', [8721]], ['Sum', [8721]], ['sung', [9834]], ['sup1', [185]], ['sup2', [178]], ['sup3', [179]], ['sup', [8835]], ['Sup', [8913]], ['supdot', [10942]], ['supdsub', [10968]], ['supE', [10950]], ['supe', [8839]], ['supedot', [10948]], ['Superset', [8835]], ['SupersetEqual', [8839]], ['suphsol', [10185]], ['suphsub', [10967]], ['suplarr', [10619]], ['supmult', [10946]], ['supnE', [10956]], ['supne', [8843]], ['supplus', [10944]], ['supset', [8835]], ['Supset', [8913]], ['supseteq', [8839]], ['supseteqq', [10950]], ['supsetneq', [8843]], ['supsetneqq', [10956]], ['supsim', [10952]], ['supsub', [10964]], ['supsup', [10966]], ['swarhk', [10534]], ['swarr', [8601]], ['swArr', [8665]], ['swarrow', [8601]], ['swnwar', [10538]], ['szlig', [223]], ['Tab', [9]], ['target', [8982]], ['Tau', [932]], ['tau', [964]], ['tbrk', [9140]], ['Tcaron', [356]], ['tcaron', [357]], ['Tcedil', [354]], ['tcedil', [355]], ['Tcy', [1058]], ['tcy', [1090]], ['tdot', [8411]], ['telrec', [8981]], ['Tfr', [120087]], ['tfr', [120113]], ['there4', [8756]], ['therefore', [8756]], ['Therefore', [8756]], ['Theta', [920]], ['theta', [952]], ['thetasym', [977]], ['thetav', [977]], ['thickapprox', [8776]], ['thicksim', [8764]], ['ThickSpace', [8287, 8202]], ['ThinSpace', [8201]], ['thinsp', [8201]], ['thkap', [8776]], ['thksim', [8764]], ['THORN', [222]], ['thorn', [254]], ['tilde', [732]], ['Tilde', [8764]], ['TildeEqual', [8771]], ['TildeFullEqual', [8773]], ['TildeTilde', [8776]], ['timesbar', [10801]], ['timesb', [8864]], ['times', [215]], ['timesd', [10800]], ['tint', [8749]], ['toea', [10536]], ['topbot', [9014]], ['topcir', [10993]], ['top', [8868]], ['Topf', [120139]], ['topf', [120165]], ['topfork', [10970]], ['tosa', [10537]], ['tprime', [8244]], ['trade', [8482]], ['TRADE', [8482]], ['triangle', [9653]], ['triangledown', [9663]], ['triangleleft', [9667]], ['trianglelefteq', [8884]], ['triangleq', [8796]], ['triangleright', [9657]], ['trianglerighteq', [8885]], ['tridot', [9708]], ['trie', [8796]], ['triminus', [10810]], ['TripleDot', [8411]], ['triplus', [10809]], ['trisb', [10701]], ['tritime', [10811]], ['trpezium', [9186]], ['Tscr', [119983]], ['tscr', [120009]], ['TScy', [1062]], ['tscy', [1094]], ['TSHcy', [1035]], ['tshcy', [1115]], ['Tstrok', [358]], ['tstrok', [359]], ['twixt', [8812]], ['twoheadleftarrow', [8606]], ['twoheadrightarrow', [8608]], ['Uacute', [218]], ['uacute', [250]], ['uarr', [8593]], ['Uarr', [8607]], ['uArr', [8657]], ['Uarrocir', [10569]], ['Ubrcy', [1038]], ['ubrcy', [1118]], ['Ubreve', [364]], ['ubreve', [365]], ['Ucirc', [219]], ['ucirc', [251]], ['Ucy', [1059]], ['ucy', [1091]], ['udarr', [8645]], ['Udblac', [368]], ['udblac', [369]], ['udhar', [10606]], ['ufisht', [10622]], ['Ufr', [120088]], ['ufr', [120114]], ['Ugrave', [217]], ['ugrave', [249]], ['uHar', [10595]], ['uharl', [8639]], ['uharr', [8638]], ['uhblk', [9600]], ['ulcorn', [8988]], ['ulcorner', [8988]], ['ulcrop', [8975]], ['ultri', [9720]], ['Umacr', [362]], ['umacr', [363]], ['uml', [168]], ['UnderBar', [95]], ['UnderBrace', [9183]], ['UnderBracket', [9141]], ['UnderParenthesis', [9181]], ['Union', [8899]], ['UnionPlus', [8846]], ['Uogon', [370]], ['uogon', [371]], ['Uopf', [120140]], ['uopf', [120166]], ['UpArrowBar', [10514]], ['uparrow', [8593]], ['UpArrow', [8593]], ['Uparrow', [8657]], ['UpArrowDownArrow', [8645]], ['updownarrow', [8597]], ['UpDownArrow', [8597]], ['Updownarrow', [8661]], ['UpEquilibrium', [10606]], ['upharpoonleft', [8639]], ['upharpoonright', [8638]], ['uplus', [8846]], ['UpperLeftArrow', [8598]], ['UpperRightArrow', [8599]], ['upsi', [965]], ['Upsi', [978]], ['upsih', [978]], ['Upsilon', [933]], ['upsilon', [965]], ['UpTeeArrow', [8613]], ['UpTee', [8869]], ['upuparrows', [8648]], ['urcorn', [8989]], ['urcorner', [8989]], ['urcrop', [8974]], ['Uring', [366]], ['uring', [367]], ['urtri', [9721]], ['Uscr', [119984]], ['uscr', [120010]], ['utdot', [8944]], ['Utilde', [360]], ['utilde', [361]], ['utri', [9653]], ['utrif', [9652]], ['uuarr', [8648]], ['Uuml', [220]], ['uuml', [252]], ['uwangle', [10663]], ['vangrt', [10652]], ['varepsilon', [1013]], ['varkappa', [1008]], ['varnothing', [8709]], ['varphi', [981]], ['varpi', [982]], ['varpropto', [8733]], ['varr', [8597]], ['vArr', [8661]], ['varrho', [1009]], ['varsigma', [962]], ['varsubsetneq', [8842, 65024]], ['varsubsetneqq', [10955, 65024]], ['varsupsetneq', [8843, 65024]], ['varsupsetneqq', [10956, 65024]], ['vartheta', [977]], ['vartriangleleft', [8882]], ['vartriangleright', [8883]], ['vBar', [10984]], ['Vbar', [10987]], ['vBarv', [10985]], ['Vcy', [1042]], ['vcy', [1074]], ['vdash', [8866]], ['vDash', [8872]], ['Vdash', [8873]], ['VDash', [8875]], ['Vdashl', [10982]], ['veebar', [8891]], ['vee', [8744]], ['Vee', [8897]], ['veeeq', [8794]], ['vellip', [8942]], ['verbar', [124]], ['Verbar', [8214]], ['vert', [124]], ['Vert', [8214]], ['VerticalBar', [8739]], ['VerticalLine', [124]], ['VerticalSeparator', [10072]], ['VerticalTilde', [8768]], ['VeryThinSpace', [8202]], ['Vfr', [120089]], ['vfr', [120115]], ['vltri', [8882]], ['vnsub', [8834, 8402]], ['vnsup', [8835, 8402]], ['Vopf', [120141]], ['vopf', [120167]], ['vprop', [8733]], ['vrtri', [8883]], ['Vscr', [119985]], ['vscr', [120011]], ['vsubnE', [10955, 65024]], ['vsubne', [8842, 65024]], ['vsupnE', [10956, 65024]], ['vsupne', [8843, 65024]], ['Vvdash', [8874]], ['vzigzag', [10650]], ['Wcirc', [372]], ['wcirc', [373]], ['wedbar', [10847]], ['wedge', [8743]], ['Wedge', [8896]], ['wedgeq', [8793]], ['weierp', [8472]], ['Wfr', [120090]], ['wfr', [120116]], ['Wopf', [120142]], ['wopf', [120168]], ['wp', [8472]], ['wr', [8768]], ['wreath', [8768]], ['Wscr', [119986]], ['wscr', [120012]], ['xcap', [8898]], ['xcirc', [9711]], ['xcup', [8899]], ['xdtri', [9661]], ['Xfr', [120091]], ['xfr', [120117]], ['xharr', [10231]], ['xhArr', [10234]], ['Xi', [926]], ['xi', [958]], ['xlarr', [10229]], ['xlArr', [10232]], ['xmap', [10236]], ['xnis', [8955]], ['xodot', [10752]], ['Xopf', [120143]], ['xopf', [120169]], ['xoplus', [10753]], ['xotime', [10754]], ['xrarr', [10230]], ['xrArr', [10233]], ['Xscr', [119987]], ['xscr', [120013]], ['xsqcup', [10758]], ['xuplus', [10756]], ['xutri', [9651]], ['xvee', [8897]], ['xwedge', [8896]], ['Yacute', [221]], ['yacute', [253]], ['YAcy', [1071]], ['yacy', [1103]], ['Ycirc', [374]], ['ycirc', [375]], ['Ycy', [1067]], ['ycy', [1099]], ['yen', [165]], ['Yfr', [120092]], ['yfr', [120118]], ['YIcy', [1031]], ['yicy', [1111]], ['Yopf', [120144]], ['yopf', [120170]], ['Yscr', [119988]], ['yscr', [120014]], ['YUcy', [1070]], ['yucy', [1102]], ['yuml', [255]], ['Yuml', [376]], ['Zacute', [377]], ['zacute', [378]], ['Zcaron', [381]], ['zcaron', [382]], ['Zcy', [1047]], ['zcy', [1079]], ['Zdot', [379]], ['zdot', [380]], ['zeetrf', [8488]], ['ZeroWidthSpace', [8203]], ['Zeta', [918]], ['zeta', [950]], ['zfr', [120119]], ['Zfr', [8488]], ['ZHcy', [1046]], ['zhcy', [1078]], ['zigrarr', [8669]], ['zopf', [120171]], ['Zopf', [8484]], ['Zscr', [119989]], ['zscr', [120015]], ['zwj', [8205]], ['zwnj', [8204]]]; +var DECODE_ONLY_ENTITIES = [['NewLine', [10]]]; +var alphaIndex = {}; +var charIndex = {}; +createIndexes(alphaIndex, charIndex); +var Html5Entities = /** @class */ (function () { + function Html5Entities() { + } + Html5Entities.prototype.decode = function (str) { + if (!str || !str.length) { + return ''; + } + return str.replace(/&(#?[\w\d]+);?/g, function (s, entity) { + var chr; + if (entity.charAt(0) === "#") { + var code = entity.charAt(1) === 'x' ? + parseInt(entity.substr(2).toLowerCase(), 16) : + parseInt(entity.substr(1)); + if (!isNaN(code) || code >= -32768) { + if (code <= 65535) { + chr = String.fromCharCode(code); + } + else { + chr = surrogate_pairs_1.fromCodePoint(code); + } + } + } + else { + chr = alphaIndex[entity]; + } + return chr || s; + }); + }; + Html5Entities.decode = function (str) { + return new Html5Entities().decode(str); + }; + Html5Entities.prototype.encode = function (str) { + if (!str || !str.length) { + return ''; + } + var strLength = str.length; + var result = ''; + var i = 0; + while (i < strLength) { + var charInfo = charIndex[str.charCodeAt(i)]; + if (charInfo) { + var alpha = charInfo[str.charCodeAt(i + 1)]; + if (alpha) { + i++; + } + else { + alpha = charInfo['']; + } + if (alpha) { + result += "&" + alpha + ";"; + i++; + continue; + } + } + result += str.charAt(i); + i++; + } + return result; + }; + Html5Entities.encode = function (str) { + return new Html5Entities().encode(str); + }; + Html5Entities.prototype.encodeNonUTF = function (str) { + if (!str || !str.length) { + return ''; + } + var strLength = str.length; + var result = ''; + var i = 0; + while (i < strLength) { + var c = str.charCodeAt(i); + var charInfo = charIndex[c]; + if (charInfo) { + var alpha = charInfo[str.charCodeAt(i + 1)]; + if (alpha) { + i++; + } + else { + alpha = charInfo['']; + } + if (alpha) { + result += "&" + alpha + ";"; + i++; + continue; + } + } + if (c < 32 || c > 126) { + if (c >= surrogate_pairs_1.highSurrogateFrom && c <= surrogate_pairs_1.highSurrogateTo) { + result += '&#' + surrogate_pairs_1.getCodePoint(str, i) + ';'; + i++; + } + else { + result += '&#' + c + ';'; + } + } + else { + result += str.charAt(i); + } + i++; + } + return result; + }; + Html5Entities.encodeNonUTF = function (str) { + return new Html5Entities().encodeNonUTF(str); + }; + Html5Entities.prototype.encodeNonASCII = function (str) { + if (!str || !str.length) { + return ''; + } + var strLength = str.length; + var result = ''; + var i = 0; + while (i < strLength) { + var c = str.charCodeAt(i); + if (c <= 255) { + result += str[i++]; + continue; + } + if (c >= surrogate_pairs_1.highSurrogateFrom && c <= surrogate_pairs_1.highSurrogateTo) { + result += '&#' + surrogate_pairs_1.getCodePoint(str, i) + ';'; + i += 2; + } + else { + result += '&#' + c + ';'; + i++; + } + } + return result; + }; + Html5Entities.encodeNonASCII = function (str) { + return new Html5Entities().encodeNonASCII(str); + }; + return Html5Entities; +}()); +exports.Html5Entities = Html5Entities; +function createIndexes(alphaIndex, charIndex) { + var i = ENTITIES.length; + while (i--) { + var _a = ENTITIES[i], alpha = _a[0], _b = _a[1], chr = _b[0], chr2 = _b[1]; + var addChar = (chr < 32 || chr > 126) || chr === 62 || chr === 60 || chr === 38 || chr === 34 || chr === 39; + var charInfo = void 0; + if (addChar) { + charInfo = charIndex[chr] = charIndex[chr] || {}; + } + if (chr2) { + alphaIndex[alpha] = String.fromCharCode(chr) + String.fromCharCode(chr2); + addChar && (charInfo[chr2] = alpha); + } + else { + alphaIndex[alpha] = String.fromCharCode(chr); + addChar && (charInfo[''] = alpha); + } + } + i = DECODE_ONLY_ENTITIES.length; + while (i--) { + var _c = DECODE_ONLY_ENTITIES[i], alpha = _c[0], _d = _c[1], chr = _d[0], chr2 = _d[1]; + alphaIndex[alpha] = String.fromCharCode(chr) + (chr2 ? String.fromCharCode(chr2) : ''); + } +} + + +/***/ }), + +/***/ "./node_modules/html-entities/lib/index.js": +/*!*************************************************!*\ + !*** ./node_modules/html-entities/lib/index.js ***! + \*************************************************/ +/***/ ((__unused_webpack_module, exports, __webpack_require__) => { + +"use strict"; + +Object.defineProperty(exports, "__esModule", ({ value: true })); +var xml_entities_1 = __webpack_require__(/*! ./xml-entities */ "./node_modules/html-entities/lib/xml-entities.js"); +exports.XmlEntities = xml_entities_1.XmlEntities; +var html4_entities_1 = __webpack_require__(/*! ./html4-entities */ "./node_modules/html-entities/lib/html4-entities.js"); +exports.Html4Entities = html4_entities_1.Html4Entities; +var html5_entities_1 = __webpack_require__(/*! ./html5-entities */ "./node_modules/html-entities/lib/html5-entities.js"); +exports.Html5Entities = html5_entities_1.Html5Entities; +exports.AllHtmlEntities = html5_entities_1.Html5Entities; + + +/***/ }), + +/***/ "./node_modules/html-entities/lib/surrogate-pairs.js": +/*!***********************************************************!*\ + !*** ./node_modules/html-entities/lib/surrogate-pairs.js ***! + \***********************************************************/ +/***/ ((__unused_webpack_module, exports) => { + +"use strict"; + +Object.defineProperty(exports, "__esModule", ({ value: true })); +exports.fromCodePoint = String.fromCodePoint || function (astralCodePoint) { + return String.fromCharCode(Math.floor((astralCodePoint - 0x10000) / 0x400) + 0xD800, (astralCodePoint - 0x10000) % 0x400 + 0xDC00); +}; +exports.getCodePoint = String.prototype.codePointAt ? + function (input, position) { + return input.codePointAt(position); + } : + function (input, position) { + return (input.charCodeAt(position) - 0xD800) * 0x400 + + input.charCodeAt(position + 1) - 0xDC00 + 0x10000; + }; +exports.highSurrogateFrom = 0xD800; +exports.highSurrogateTo = 0xDBFF; + + +/***/ }), + +/***/ "./node_modules/html-entities/lib/xml-entities.js": +/*!********************************************************!*\ + !*** ./node_modules/html-entities/lib/xml-entities.js ***! + \********************************************************/ +/***/ ((__unused_webpack_module, exports, __webpack_require__) => { + +"use strict"; + +Object.defineProperty(exports, "__esModule", ({ value: true })); +var surrogate_pairs_1 = __webpack_require__(/*! ./surrogate-pairs */ "./node_modules/html-entities/lib/surrogate-pairs.js"); +var ALPHA_INDEX = { + '<': '<', + '>': '>', + '"': '"', + '&apos': '\'', + '&': '&', + '<': '<', + '>': '>', + '"': '"', + ''': '\'', + '&': '&' +}; +var CHAR_INDEX = { + 60: 'lt', + 62: 'gt', + 34: 'quot', + 39: 'apos', + 38: 'amp' +}; +var CHAR_S_INDEX = { + '<': '<', + '>': '>', + '"': '"', + '\'': ''', + '&': '&' +}; +var XmlEntities = /** @class */ (function () { + function XmlEntities() { + } + XmlEntities.prototype.encode = function (str) { + if (!str || !str.length) { + return ''; + } + return str.replace(/[<>"'&]/g, function (s) { + return CHAR_S_INDEX[s]; + }); + }; + XmlEntities.encode = function (str) { + return new XmlEntities().encode(str); + }; + XmlEntities.prototype.decode = function (str) { + if (!str || !str.length) { + return ''; + } + return str.replace(/&#?[0-9a-zA-Z]+;?/g, function (s) { + if (s.charAt(1) === '#') { + var code = s.charAt(2).toLowerCase() === 'x' ? + parseInt(s.substr(3), 16) : + parseInt(s.substr(2)); + if (!isNaN(code) || code >= -32768) { + if (code <= 65535) { + return String.fromCharCode(code); + } + else { + return surrogate_pairs_1.fromCodePoint(code); + } + } + return ''; + } + return ALPHA_INDEX[s] || s; + }); + }; + XmlEntities.decode = function (str) { + return new XmlEntities().decode(str); + }; + XmlEntities.prototype.encodeNonUTF = function (str) { + if (!str || !str.length) { + return ''; + } + var strLength = str.length; + var result = ''; + var i = 0; + while (i < strLength) { + var c = str.charCodeAt(i); + var alpha = CHAR_INDEX[c]; + if (alpha) { + result += "&" + alpha + ";"; + i++; + continue; + } + if (c < 32 || c > 126) { + if (c >= surrogate_pairs_1.highSurrogateFrom && c <= surrogate_pairs_1.highSurrogateTo) { + result += '&#' + surrogate_pairs_1.getCodePoint(str, i) + ';'; + i++; + } + else { + result += '&#' + c + ';'; + } + } + else { + result += str.charAt(i); + } + i++; + } + return result; + }; + XmlEntities.encodeNonUTF = function (str) { + return new XmlEntities().encodeNonUTF(str); + }; + XmlEntities.prototype.encodeNonASCII = function (str) { + if (!str || !str.length) { + return ''; + } + var strLength = str.length; + var result = ''; + var i = 0; + while (i < strLength) { + var c = str.charCodeAt(i); + if (c <= 255) { + result += str[i++]; + continue; + } + if (c >= surrogate_pairs_1.highSurrogateFrom && c <= surrogate_pairs_1.highSurrogateTo) { + result += '&#' + surrogate_pairs_1.getCodePoint(str, i) + ';'; + i++; + } + else { + result += '&#' + c + ';'; + } + i++; + } + return result; + }; + XmlEntities.encodeNonASCII = function (str) { + return new XmlEntities().encodeNonASCII(str); + }; + return XmlEntities; +}()); +exports.XmlEntities = XmlEntities; + + +/***/ }), + +/***/ "./node_modules/lodash.debounce/index.js": +/*!***********************************************!*\ + !*** ./node_modules/lodash.debounce/index.js ***! + \***********************************************/ +/***/ ((module, __unused_webpack_exports, __webpack_require__) => { + +/** + * lodash (Custom Build) + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors + * Released under MIT license + * Based on Underscore.js 1.8.3 + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as the `TypeError` message for "Functions" methods. */ +var FUNC_ERROR_TEXT = 'Expected a function'; + +/** Used as references for various `Number` constants. */ +var NAN = 0 / 0; + +/** `Object#toString` result references. */ +var symbolTag = '[object Symbol]'; + +/** Used to match leading and trailing whitespace. */ +var reTrim = /^\s+|\s+$/g; + +/** Used to detect bad signed hexadecimal string values. */ +var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + +/** Used to detect binary string values. */ +var reIsBinary = /^0b[01]+$/i; + +/** Used to detect octal string values. */ +var reIsOctal = /^0o[0-7]+$/i; + +/** Built-in method references without a dependency on `root`. */ +var freeParseInt = parseInt; + +/** Detect free variable `global` from Node.js. */ +var freeGlobal = typeof __webpack_require__.g == 'object' && __webpack_require__.g && __webpack_require__.g.Object === Object && __webpack_require__.g; + +/** Detect free variable `self`. */ +var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + +/** Used as a reference to the global object. */ +var root = freeGlobal || freeSelf || Function('return this')(); + +/** Used for built-in method references. */ +var objectProto = Object.prototype; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/* Built-in method references for those with the same name as other `lodash` methods. */ +var nativeMax = Math.max, + nativeMin = Math.min; + +/** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ +var now = function() { + return root.Date.now(); +}; + +/** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ +function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + result = wait - timeSinceLastCall; + + return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ +function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ +function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && objectToString.call(value) == symbolTag); +} + +/** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ +function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); +} + +module.exports = debounce; + + +/***/ }), + +/***/ "./node_modules/loglevel/lib/loglevel.js": +/*!***********************************************!*\ + !*** ./node_modules/loglevel/lib/loglevel.js ***! + \***********************************************/ +/***/ (function(module, exports, __webpack_require__) { + +var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/* +* loglevel - https://github.com/pimterry/loglevel +* +* Copyright (c) 2013 Tim Perry +* Licensed under the MIT license. +*/ +(function (root, definition) { + "use strict"; + if (true) { + !(__WEBPACK_AMD_DEFINE_FACTORY__ = (definition), + __WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ? + (__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) : + __WEBPACK_AMD_DEFINE_FACTORY__), + __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)); + } else {} +}(this, function () { + "use strict"; + + // Slightly dubious tricks to cut down minimized file size + var noop = function() {}; + var undefinedType = "undefined"; + var isIE = (typeof window !== undefinedType) && (typeof window.navigator !== undefinedType) && ( + /Trident\/|MSIE /.test(window.navigator.userAgent) + ); + + var logMethods = [ + "trace", + "debug", + "info", + "warn", + "error" + ]; + + // Cross-browser bind equivalent that works at least back to IE6 + function bindMethod(obj, methodName) { + var method = obj[methodName]; + if (typeof method.bind === 'function') { + return method.bind(obj); + } else { + try { + return Function.prototype.bind.call(method, obj); + } catch (e) { + // Missing bind shim or IE8 + Modernizr, fallback to wrapping + return function() { + return Function.prototype.apply.apply(method, [obj, arguments]); + }; + } + } + } + + // Trace() doesn't print the message in IE, so for that case we need to wrap it + function traceForIE() { + if (console.log) { + if (console.log.apply) { + console.log.apply(console, arguments); + } else { + // In old IE, native console methods themselves don't have apply(). + Function.prototype.apply.apply(console.log, [console, arguments]); + } + } + if (console.trace) console.trace(); + } + + // Build the best logging method possible for this env + // Wherever possible we want to bind, not wrap, to preserve stack traces + function realMethod(methodName) { + if (methodName === 'debug') { + methodName = 'log'; + } + + if (typeof console === undefinedType) { + return false; // No method possible, for now - fixed later by enableLoggingWhenConsoleArrives + } else if (methodName === 'trace' && isIE) { + return traceForIE; + } else if (console[methodName] !== undefined) { + return bindMethod(console, methodName); + } else if (console.log !== undefined) { + return bindMethod(console, 'log'); + } else { + return noop; + } + } + + // These private functions always need `this` to be set properly + + function replaceLoggingMethods(level, loggerName) { + /*jshint validthis:true */ + for (var i = 0; i < logMethods.length; i++) { + var methodName = logMethods[i]; + this[methodName] = (i < level) ? + noop : + this.methodFactory(methodName, level, loggerName); + } + + // Define log.log as an alias for log.debug + this.log = this.debug; + } + + // In old IE versions, the console isn't present until you first open it. + // We build realMethod() replacements here that regenerate logging methods + function enableLoggingWhenConsoleArrives(methodName, level, loggerName) { + return function () { + if (typeof console !== undefinedType) { + replaceLoggingMethods.call(this, level, loggerName); + this[methodName].apply(this, arguments); + } + }; + } + + // By default, we use closely bound real methods wherever possible, and + // otherwise we wait for a console to appear, and then try again. + function defaultMethodFactory(methodName, level, loggerName) { + /*jshint validthis:true */ + return realMethod(methodName) || + enableLoggingWhenConsoleArrives.apply(this, arguments); + } + + function Logger(name, defaultLevel, factory) { + var self = this; + var currentLevel; + + var storageKey = "loglevel"; + if (typeof name === "string") { + storageKey += ":" + name; + } else if (typeof name === "symbol") { + storageKey = undefined; + } + + function persistLevelIfPossible(levelNum) { + var levelName = (logMethods[levelNum] || 'silent').toUpperCase(); + + if (typeof window === undefinedType || !storageKey) return; + + // Use localStorage if available + try { + window.localStorage[storageKey] = levelName; + return; + } catch (ignore) {} + + // Use session cookie as fallback + try { + window.document.cookie = + encodeURIComponent(storageKey) + "=" + levelName + ";"; + } catch (ignore) {} + } + + function getPersistedLevel() { + var storedLevel; + + if (typeof window === undefinedType || !storageKey) return; + + try { + storedLevel = window.localStorage[storageKey]; + } catch (ignore) {} + + // Fallback to cookies if local storage gives us nothing + if (typeof storedLevel === undefinedType) { + try { + var cookie = window.document.cookie; + var location = cookie.indexOf( + encodeURIComponent(storageKey) + "="); + if (location !== -1) { + storedLevel = /^([^;]+)/.exec(cookie.slice(location))[1]; + } + } catch (ignore) {} + } + + // If the stored level is not valid, treat it as if nothing was stored. + if (self.levels[storedLevel] === undefined) { + storedLevel = undefined; + } + + return storedLevel; + } + + /* + * + * Public logger API - see https://github.com/pimterry/loglevel for details + * + */ + + self.name = name; + + self.levels = { "TRACE": 0, "DEBUG": 1, "INFO": 2, "WARN": 3, + "ERROR": 4, "SILENT": 5}; + + self.methodFactory = factory || defaultMethodFactory; + + self.getLevel = function () { + return currentLevel; + }; + + self.setLevel = function (level, persist) { + if (typeof level === "string" && self.levels[level.toUpperCase()] !== undefined) { + level = self.levels[level.toUpperCase()]; + } + if (typeof level === "number" && level >= 0 && level <= self.levels.SILENT) { + currentLevel = level; + if (persist !== false) { // defaults to true + persistLevelIfPossible(level); + } + replaceLoggingMethods.call(self, level, name); + if (typeof console === undefinedType && level < self.levels.SILENT) { + return "No console available for logging"; + } + } else { + throw "log.setLevel() called with invalid level: " + level; + } + }; + + self.setDefaultLevel = function (level) { + if (!getPersistedLevel()) { + self.setLevel(level, false); + } + }; + + self.enableAll = function(persist) { + self.setLevel(self.levels.TRACE, persist); + }; + + self.disableAll = function(persist) { + self.setLevel(self.levels.SILENT, persist); + }; + + // Initialize with the right level + var initialLevel = getPersistedLevel(); + if (initialLevel == null) { + initialLevel = defaultLevel == null ? "WARN" : defaultLevel; + } + self.setLevel(initialLevel, false); + } + + /* + * + * Top-level API + * + */ + + var defaultLogger = new Logger(); + + var _loggersByName = {}; + defaultLogger.getLogger = function getLogger(name) { + if ((typeof name !== "symbol" && typeof name !== "string") || name === "") { + throw new TypeError("You must supply a name when creating a logger."); + } + + var logger = _loggersByName[name]; + if (!logger) { + logger = _loggersByName[name] = new Logger( + name, defaultLogger.getLevel(), defaultLogger.methodFactory); + } + return logger; + }; + + // Grab the current global log variable in case of overwrite + var _log = (typeof window !== undefinedType) ? window.log : undefined; + defaultLogger.noConflict = function() { + if (typeof window !== undefinedType && + window.log === defaultLogger) { + window.log = _log; + } + + return defaultLogger; + }; + + defaultLogger.getLoggers = function getLoggers() { + return _loggersByName; + }; + + // ES6 default export, for compatibility + defaultLogger['default'] = defaultLogger; + + return defaultLogger; +})); + + +/***/ }), + +/***/ "./node_modules/punycode/punycode.es6.js": +/*!***********************************************!*\ + !*** ./node_modules/punycode/punycode.es6.js ***! + \***********************************************/ +/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => { + +"use strict"; +__webpack_require__.r(__webpack_exports__); +/* harmony export */ __webpack_require__.d(__webpack_exports__, { +/* harmony export */ "ucs2decode": () => /* binding */ ucs2decode, +/* harmony export */ "ucs2encode": () => /* binding */ ucs2encode, +/* harmony export */ "decode": () => /* binding */ decode, +/* harmony export */ "encode": () => /* binding */ encode, +/* harmony export */ "toASCII": () => /* binding */ toASCII, +/* harmony export */ "toUnicode": () => /* binding */ toUnicode, +/* harmony export */ "default": () => __WEBPACK_DEFAULT_EXPORT__ +/* harmony export */ }); + + +/** Highest positive signed 32-bit float value */ +const maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1 + +/** Bootstring parameters */ +const base = 36; +const tMin = 1; +const tMax = 26; +const skew = 38; +const damp = 700; +const initialBias = 72; +const initialN = 128; // 0x80 +const delimiter = '-'; // '\x2D' + +/** Regular expressions */ +const regexPunycode = /^xn--/; +const regexNonASCII = /[^\0-\x7E]/; // non-ASCII chars +const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g; // RFC 3490 separators + +/** Error messages */ +const errors = { + 'overflow': 'Overflow: input needs wider integers to process', + 'not-basic': 'Illegal input >= 0x80 (not a basic code point)', + 'invalid-input': 'Invalid input' +}; + +/** Convenience shortcuts */ +const baseMinusTMin = base - tMin; +const floor = Math.floor; +const stringFromCharCode = String.fromCharCode; + +/*--------------------------------------------------------------------------*/ + +/** + * A generic error utility function. + * @private + * @param {String} type The error type. + * @returns {Error} Throws a `RangeError` with the applicable error message. + */ +function error(type) { + throw new RangeError(errors[type]); +} + +/** + * A generic `Array#map` utility function. + * @private + * @param {Array} array The array to iterate over. + * @param {Function} callback The function that gets called for every array + * item. + * @returns {Array} A new array of values returned by the callback function. + */ +function map(array, fn) { + const result = []; + let length = array.length; + while (length--) { + result[length] = fn(array[length]); + } + return result; +} + +/** + * A simple `Array#map`-like wrapper to work with domain name strings or email + * addresses. + * @private + * @param {String} domain The domain name or email address. + * @param {Function} callback The function that gets called for every + * character. + * @returns {Array} A new string of characters returned by the callback + * function. + */ +function mapDomain(string, fn) { + const parts = string.split('@'); + let result = ''; + if (parts.length > 1) { + // In email addresses, only the domain name should be punycoded. Leave + // the local part (i.e. everything up to `@`) intact. + result = parts[0] + '@'; + string = parts[1]; + } + // Avoid `split(regex)` for IE8 compatibility. See #17. + string = string.replace(regexSeparators, '\x2E'); + const labels = string.split('.'); + const encoded = map(labels, fn).join('.'); + return result + encoded; +} + +/** + * Creates an array containing the numeric code points of each Unicode + * character in the string. While JavaScript uses UCS-2 internally, + * this function will convert a pair of surrogate halves (each of which + * UCS-2 exposes as separate characters) into a single code point, + * matching UTF-16. + * @see `punycode.ucs2.encode` + * @see + * @memberOf punycode.ucs2 + * @name decode + * @param {String} string The Unicode input string (UCS-2). + * @returns {Array} The new array of code points. + */ +function ucs2decode(string) { + const output = []; + let counter = 0; + const length = string.length; + while (counter < length) { + const value = string.charCodeAt(counter++); + if (value >= 0xD800 && value <= 0xDBFF && counter < length) { + // It's a high surrogate, and there is a next character. + const extra = string.charCodeAt(counter++); + if ((extra & 0xFC00) == 0xDC00) { // Low surrogate. + output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000); + } else { + // It's an unmatched surrogate; only append this code unit, in case the + // next code unit is the high surrogate of a surrogate pair. + output.push(value); + counter--; + } + } else { + output.push(value); + } + } + return output; +} + +/** + * Creates a string based on an array of numeric code points. + * @see `punycode.ucs2.decode` + * @memberOf punycode.ucs2 + * @name encode + * @param {Array} codePoints The array of numeric code points. + * @returns {String} The new Unicode string (UCS-2). + */ +const ucs2encode = array => String.fromCodePoint(...array); + +/** + * Converts a basic code point into a digit/integer. + * @see `digitToBasic()` + * @private + * @param {Number} codePoint The basic numeric code point value. + * @returns {Number} The numeric value of a basic code point (for use in + * representing integers) in the range `0` to `base - 1`, or `base` if + * the code point does not represent a value. + */ +const basicToDigit = function(codePoint) { + if (codePoint - 0x30 < 0x0A) { + return codePoint - 0x16; + } + if (codePoint - 0x41 < 0x1A) { + return codePoint - 0x41; + } + if (codePoint - 0x61 < 0x1A) { + return codePoint - 0x61; + } + return base; +}; + +/** + * Converts a digit/integer into a basic code point. + * @see `basicToDigit()` + * @private + * @param {Number} digit The numeric value of a basic code point. + * @returns {Number} The basic code point whose value (when used for + * representing integers) is `digit`, which needs to be in the range + * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is + * used; else, the lowercase form is used. The behavior is undefined + * if `flag` is non-zero and `digit` has no uppercase form. + */ +const digitToBasic = function(digit, flag) { + // 0..25 map to ASCII a..z or A..Z + // 26..35 map to ASCII 0..9 + return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5); +}; + +/** + * Bias adaptation function as per section 3.4 of RFC 3492. + * https://tools.ietf.org/html/rfc3492#section-3.4 + * @private + */ +const adapt = function(delta, numPoints, firstTime) { + let k = 0; + delta = firstTime ? floor(delta / damp) : delta >> 1; + delta += floor(delta / numPoints); + for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) { + delta = floor(delta / baseMinusTMin); + } + return floor(k + (baseMinusTMin + 1) * delta / (delta + skew)); +}; + +/** + * Converts a Punycode string of ASCII-only symbols to a string of Unicode + * symbols. + * @memberOf punycode + * @param {String} input The Punycode string of ASCII-only symbols. + * @returns {String} The resulting string of Unicode symbols. + */ +const decode = function(input) { + // Don't use UCS-2. + const output = []; + const inputLength = input.length; + let i = 0; + let n = initialN; + let bias = initialBias; + + // Handle the basic code points: let `basic` be the number of input code + // points before the last delimiter, or `0` if there is none, then copy + // the first basic code points to the output. + + let basic = input.lastIndexOf(delimiter); + if (basic < 0) { + basic = 0; + } + + for (let j = 0; j < basic; ++j) { + // if it's not a basic code point + if (input.charCodeAt(j) >= 0x80) { + error('not-basic'); + } + output.push(input.charCodeAt(j)); + } + + // Main decoding loop: start just after the last delimiter if any basic code + // points were copied; start at the beginning otherwise. + + for (let index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) { + + // `index` is the index of the next character to be consumed. + // Decode a generalized variable-length integer into `delta`, + // which gets added to `i`. The overflow checking is easier + // if we increase `i` as we go, then subtract off its starting + // value at the end to obtain `delta`. + let oldi = i; + for (let w = 1, k = base; /* no condition */; k += base) { + + if (index >= inputLength) { + error('invalid-input'); + } + + const digit = basicToDigit(input.charCodeAt(index++)); + + if (digit >= base || digit > floor((maxInt - i) / w)) { + error('overflow'); + } + + i += digit * w; + const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); + + if (digit < t) { + break; + } + + const baseMinusT = base - t; + if (w > floor(maxInt / baseMinusT)) { + error('overflow'); + } + + w *= baseMinusT; + + } + + const out = output.length + 1; + bias = adapt(i - oldi, out, oldi == 0); + + // `i` was supposed to wrap around from `out` to `0`, + // incrementing `n` each time, so we'll fix that now: + if (floor(i / out) > maxInt - n) { + error('overflow'); + } + + n += floor(i / out); + i %= out; + + // Insert `n` at position `i` of the output. + output.splice(i++, 0, n); + + } + + return String.fromCodePoint(...output); +}; + +/** + * Converts a string of Unicode symbols (e.g. a domain name label) to a + * Punycode string of ASCII-only symbols. + * @memberOf punycode + * @param {String} input The string of Unicode symbols. + * @returns {String} The resulting Punycode string of ASCII-only symbols. + */ +const encode = function(input) { + const output = []; + + // Convert the input in UCS-2 to an array of Unicode code points. + input = ucs2decode(input); + + // Cache the length. + let inputLength = input.length; + + // Initialize the state. + let n = initialN; + let delta = 0; + let bias = initialBias; + + // Handle the basic code points. + for (const currentValue of input) { + if (currentValue < 0x80) { + output.push(stringFromCharCode(currentValue)); + } + } + + let basicLength = output.length; + let handledCPCount = basicLength; + + // `handledCPCount` is the number of code points that have been handled; + // `basicLength` is the number of basic code points. + + // Finish the basic string with a delimiter unless it's empty. + if (basicLength) { + output.push(delimiter); + } + + // Main encoding loop: + while (handledCPCount < inputLength) { + + // All non-basic code points < n have been handled already. Find the next + // larger one: + let m = maxInt; + for (const currentValue of input) { + if (currentValue >= n && currentValue < m) { + m = currentValue; + } + } + + // Increase `delta` enough to advance the decoder's state to , + // but guard against overflow. + const handledCPCountPlusOne = handledCPCount + 1; + if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) { + error('overflow'); + } + + delta += (m - n) * handledCPCountPlusOne; + n = m; + + for (const currentValue of input) { + if (currentValue < n && ++delta > maxInt) { + error('overflow'); + } + if (currentValue == n) { + // Represent delta as a generalized variable-length integer. + let q = delta; + for (let k = base; /* no condition */; k += base) { + const t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); + if (q < t) { + break; + } + const qMinusT = q - t; + const baseMinusT = base - t; + output.push( + stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)) + ); + q = floor(qMinusT / baseMinusT); + } + + output.push(stringFromCharCode(digitToBasic(q, 0))); + bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength); + delta = 0; + ++handledCPCount; + } + } + + ++delta; + ++n; + + } + return output.join(''); +}; + +/** + * Converts a Punycode string representing a domain name or an email address + * to Unicode. Only the Punycoded parts of the input will be converted, i.e. + * it doesn't matter if you call it on a string that has already been + * converted to Unicode. + * @memberOf punycode + * @param {String} input The Punycoded domain name or email address to + * convert to Unicode. + * @returns {String} The Unicode representation of the given Punycode + * string. + */ +const toUnicode = function(input) { + return mapDomain(input, function(string) { + return regexPunycode.test(string) + ? decode(string.slice(4).toLowerCase()) + : string; + }); +}; + +/** + * Converts a Unicode string representing a domain name or an email address to + * Punycode. Only the non-ASCII parts of the domain name will be converted, + * i.e. it doesn't matter if you call it with a domain that's already in + * ASCII. + * @memberOf punycode + * @param {String} input The domain name or email address to convert, as a + * Unicode string. + * @returns {String} The Punycode representation of the given domain name or + * email address. + */ +const toASCII = function(input) { + return mapDomain(input, function(string) { + return regexNonASCII.test(string) + ? 'xn--' + encode(string) + : string; + }); +}; + +/*--------------------------------------------------------------------------*/ + +/** Define the public API */ +const punycode = { + /** + * A string representing the current Punycode.js version number. + * @memberOf punycode + * @type String + */ + 'version': '2.1.0', + /** + * An object of methods to convert from JavaScript's internal character + * representation (UCS-2) to Unicode code points, and back. + * @see + * @memberOf punycode + * @type Object + */ + 'ucs2': { + 'decode': ucs2decode, + 'encode': ucs2encode + }, + 'decode': decode, + 'encode': encode, + 'toASCII': toASCII, + 'toUnicode': toUnicode +}; + + +/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (punycode); + + +/***/ }), + +/***/ "./node_modules/querystring/decode.js": +/*!********************************************!*\ + !*** ./node_modules/querystring/decode.js ***! + \********************************************/ +/***/ ((module) => { + +"use strict"; +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + + + +// If obj.hasOwnProperty has been overridden, then calling +// obj.hasOwnProperty(prop) will break. +// See: https://github.com/joyent/node/issues/1707 +function hasOwnProperty(obj, prop) { + return Object.prototype.hasOwnProperty.call(obj, prop); +} + +module.exports = function(qs, sep, eq, options) { + sep = sep || '&'; + eq = eq || '='; + var obj = {}; + + if (typeof qs !== 'string' || qs.length === 0) { + return obj; + } + + var regexp = /\+/g; + qs = qs.split(sep); + + var maxKeys = 1000; + if (options && typeof options.maxKeys === 'number') { + maxKeys = options.maxKeys; + } + + var len = qs.length; + // maxKeys <= 0 means that we should not limit keys count + if (maxKeys > 0 && len > maxKeys) { + len = maxKeys; + } + + for (var i = 0; i < len; ++i) { + var x = qs[i].replace(regexp, '%20'), + idx = x.indexOf(eq), + kstr, vstr, k, v; + + if (idx >= 0) { + kstr = x.substr(0, idx); + vstr = x.substr(idx + 1); + } else { + kstr = x; + vstr = ''; + } + + k = decodeURIComponent(kstr); + v = decodeURIComponent(vstr); + + if (!hasOwnProperty(obj, k)) { + obj[k] = v; + } else if (Array.isArray(obj[k])) { + obj[k].push(v); + } else { + obj[k] = [obj[k], v]; + } + } + + return obj; +}; + + +/***/ }), + +/***/ "./node_modules/querystring/encode.js": +/*!********************************************!*\ + !*** ./node_modules/querystring/encode.js ***! + \********************************************/ +/***/ ((module) => { + +"use strict"; +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + + + +var stringifyPrimitive = function(v) { + switch (typeof v) { + case 'string': + return v; + + case 'boolean': + return v ? 'true' : 'false'; + + case 'number': + return isFinite(v) ? v : ''; + + default: + return ''; + } +}; + +module.exports = function(obj, sep, eq, name) { + sep = sep || '&'; + eq = eq || '='; + if (obj === null) { + obj = undefined; + } + + if (typeof obj === 'object') { + return Object.keys(obj).map(function(k) { + var ks = encodeURIComponent(stringifyPrimitive(k)) + eq; + if (Array.isArray(obj[k])) { + return obj[k].map(function(v) { + return ks + encodeURIComponent(stringifyPrimitive(v)); + }).join(sep); + } else { + return ks + encodeURIComponent(stringifyPrimitive(obj[k])); + } + }).join(sep); + + } + + if (!name) return ''; + return encodeURIComponent(stringifyPrimitive(name)) + eq + + encodeURIComponent(stringifyPrimitive(obj)); +}; + + +/***/ }), + +/***/ "./node_modules/querystring/index.js": +/*!*******************************************!*\ + !*** ./node_modules/querystring/index.js ***! + \*******************************************/ +/***/ ((__unused_webpack_module, exports, __webpack_require__) => { + +"use strict"; + + +exports.decode = exports.parse = __webpack_require__(/*! ./decode */ "./node_modules/querystring/decode.js"); +exports.encode = exports.stringify = __webpack_require__(/*! ./encode */ "./node_modules/querystring/encode.js"); + + +/***/ }), + +/***/ "./node_modules/sockjs-client/dist/sockjs.js": +/*!***************************************************!*\ + !*** ./node_modules/sockjs-client/dist/sockjs.js ***! + \***************************************************/ +/***/ ((module, __unused_webpack_exports, __webpack_require__) => { + +/* sockjs-client v1.5.0 | http://sockjs.org | MIT license */ +(function(f){if(true){module.exports=f()}else { var g; }})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c=undefined;if(!f&&c)return require(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u=undefined,i=0;i 1) { + // Make a copy so as not to interfere with a current dispatchEvent. + this._listeners[eventType] = arr.slice(0, idx).concat(arr.slice(idx + 1)); + } else { + delete this._listeners[eventType]; + } + return; + } +}; + +EventTarget.prototype.dispatchEvent = function() { + var event = arguments[0]; + var t = event.type; + // equivalent of Array.prototype.slice.call(arguments, 0); + var args = arguments.length === 1 ? [event] : Array.apply(null, arguments); + // TODO: This doesn't match the real behavior; per spec, onfoo get + // their place in line from the /first/ time they're set from + // non-null. Although WebKit bumps it to the end every time it's + // set. + if (this['on' + t]) { + this['on' + t].apply(this, args); + } + if (t in this._listeners) { + // Grab a reference to the listeners list. removeEventListener may alter the list. + var listeners = this._listeners[t]; + for (var i = 0; i < listeners.length; i++) { + listeners[i].apply(this, args); + } + } +}; + +module.exports = EventTarget; + +},{}],6:[function(require,module,exports){ +'use strict'; + +var inherits = require('inherits') + , Event = require('./event') + ; + +function TransportMessageEvent(data) { + Event.call(this); + this.initEvent('message', false, false); + this.data = data; +} + +inherits(TransportMessageEvent, Event); + +module.exports = TransportMessageEvent; + +},{"./event":4,"inherits":57}],7:[function(require,module,exports){ +'use strict'; + +var JSON3 = require('json3') + , iframeUtils = require('./utils/iframe') + ; + +function FacadeJS(transport) { + this._transport = transport; + transport.on('message', this._transportMessage.bind(this)); + transport.on('close', this._transportClose.bind(this)); +} + +FacadeJS.prototype._transportClose = function(code, reason) { + iframeUtils.postMessage('c', JSON3.stringify([code, reason])); +}; +FacadeJS.prototype._transportMessage = function(frame) { + iframeUtils.postMessage('t', frame); +}; +FacadeJS.prototype._send = function(data) { + this._transport.send(data); +}; +FacadeJS.prototype._close = function() { + this._transport.close(); + this._transport.removeAllListeners(); +}; + +module.exports = FacadeJS; + +},{"./utils/iframe":47,"json3":58}],8:[function(require,module,exports){ +(function (process){ +'use strict'; + +var urlUtils = require('./utils/url') + , eventUtils = require('./utils/event') + , JSON3 = require('json3') + , FacadeJS = require('./facade') + , InfoIframeReceiver = require('./info-iframe-receiver') + , iframeUtils = require('./utils/iframe') + , loc = require('./location') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:iframe-bootstrap'); +} + +module.exports = function(SockJS, availableTransports) { + var transportMap = {}; + availableTransports.forEach(function(at) { + if (at.facadeTransport) { + transportMap[at.facadeTransport.transportName] = at.facadeTransport; + } + }); + + // hard-coded for the info iframe + // TODO see if we can make this more dynamic + transportMap[InfoIframeReceiver.transportName] = InfoIframeReceiver; + var parentOrigin; + + /* eslint-disable camelcase */ + SockJS.bootstrap_iframe = function() { + /* eslint-enable camelcase */ + var facade; + iframeUtils.currentWindowId = loc.hash.slice(1); + var onMessage = function(e) { + if (e.source !== parent) { + return; + } + if (typeof parentOrigin === 'undefined') { + parentOrigin = e.origin; + } + if (e.origin !== parentOrigin) { + return; + } + + var iframeMessage; + try { + iframeMessage = JSON3.parse(e.data); + } catch (ignored) { + debug('bad json', e.data); + return; + } + + if (iframeMessage.windowId !== iframeUtils.currentWindowId) { + return; + } + switch (iframeMessage.type) { + case 's': + var p; + try { + p = JSON3.parse(iframeMessage.data); + } catch (ignored) { + debug('bad json', iframeMessage.data); + break; + } + var version = p[0]; + var transport = p[1]; + var transUrl = p[2]; + var baseUrl = p[3]; + debug(version, transport, transUrl, baseUrl); + // change this to semver logic + if (version !== SockJS.version) { + throw new Error('Incompatible SockJS! Main site uses:' + + ' "' + version + '", the iframe:' + + ' "' + SockJS.version + '".'); + } + + if (!urlUtils.isOriginEqual(transUrl, loc.href) || + !urlUtils.isOriginEqual(baseUrl, loc.href)) { + throw new Error('Can\'t connect to different domain from within an ' + + 'iframe. (' + loc.href + ', ' + transUrl + ', ' + baseUrl + ')'); + } + facade = new FacadeJS(new transportMap[transport](transUrl, baseUrl)); + break; + case 'm': + facade._send(iframeMessage.data); + break; + case 'c': + if (facade) { + facade._close(); + } + facade = null; + break; + } + }; + + eventUtils.attachEvent('message', onMessage); + + // Start + iframeUtils.postMessage('s'); + }; +}; + +}).call(this,{ env: {} }) + +},{"./facade":7,"./info-iframe-receiver":10,"./location":13,"./utils/event":46,"./utils/iframe":47,"./utils/url":52,"debug":55,"json3":58}],9:[function(require,module,exports){ +(function (process){ +'use strict'; + +var EventEmitter = require('events').EventEmitter + , inherits = require('inherits') + , JSON3 = require('json3') + , objectUtils = require('./utils/object') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:info-ajax'); +} + +function InfoAjax(url, AjaxObject) { + EventEmitter.call(this); + + var self = this; + var t0 = +new Date(); + this.xo = new AjaxObject('GET', url); + + this.xo.once('finish', function(status, text) { + var info, rtt; + if (status === 200) { + rtt = (+new Date()) - t0; + if (text) { + try { + info = JSON3.parse(text); + } catch (e) { + debug('bad json', text); + } + } + + if (!objectUtils.isObject(info)) { + info = {}; + } + } + self.emit('finish', info, rtt); + self.removeAllListeners(); + }); +} + +inherits(InfoAjax, EventEmitter); + +InfoAjax.prototype.close = function() { + this.removeAllListeners(); + this.xo.close(); +}; + +module.exports = InfoAjax; + +}).call(this,{ env: {} }) + +},{"./utils/object":49,"debug":55,"events":3,"inherits":57,"json3":58}],10:[function(require,module,exports){ +'use strict'; + +var inherits = require('inherits') + , EventEmitter = require('events').EventEmitter + , JSON3 = require('json3') + , XHRLocalObject = require('./transport/sender/xhr-local') + , InfoAjax = require('./info-ajax') + ; + +function InfoReceiverIframe(transUrl) { + var self = this; + EventEmitter.call(this); + + this.ir = new InfoAjax(transUrl, XHRLocalObject); + this.ir.once('finish', function(info, rtt) { + self.ir = null; + self.emit('message', JSON3.stringify([info, rtt])); + }); +} + +inherits(InfoReceiverIframe, EventEmitter); + +InfoReceiverIframe.transportName = 'iframe-info-receiver'; + +InfoReceiverIframe.prototype.close = function() { + if (this.ir) { + this.ir.close(); + this.ir = null; + } + this.removeAllListeners(); +}; + +module.exports = InfoReceiverIframe; + +},{"./info-ajax":9,"./transport/sender/xhr-local":37,"events":3,"inherits":57,"json3":58}],11:[function(require,module,exports){ +(function (process,global){ +'use strict'; + +var EventEmitter = require('events').EventEmitter + , inherits = require('inherits') + , JSON3 = require('json3') + , utils = require('./utils/event') + , IframeTransport = require('./transport/iframe') + , InfoReceiverIframe = require('./info-iframe-receiver') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:info-iframe'); +} + +function InfoIframe(baseUrl, url) { + var self = this; + EventEmitter.call(this); + + var go = function() { + var ifr = self.ifr = new IframeTransport(InfoReceiverIframe.transportName, url, baseUrl); + + ifr.once('message', function(msg) { + if (msg) { + var d; + try { + d = JSON3.parse(msg); + } catch (e) { + debug('bad json', msg); + self.emit('finish'); + self.close(); + return; + } + + var info = d[0], rtt = d[1]; + self.emit('finish', info, rtt); + } + self.close(); + }); + + ifr.once('close', function() { + self.emit('finish'); + self.close(); + }); + }; + + // TODO this seems the same as the 'needBody' from transports + if (!global.document.body) { + utils.attachEvent('load', go); + } else { + go(); + } +} + +inherits(InfoIframe, EventEmitter); + +InfoIframe.enabled = function() { + return IframeTransport.enabled(); +}; + +InfoIframe.prototype.close = function() { + if (this.ifr) { + this.ifr.close(); + } + this.removeAllListeners(); + this.ifr = null; +}; + +module.exports = InfoIframe; + +}).call(this,{ env: {} },typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{"./info-iframe-receiver":10,"./transport/iframe":22,"./utils/event":46,"debug":55,"events":3,"inherits":57,"json3":58}],12:[function(require,module,exports){ +(function (process){ +'use strict'; + +var EventEmitter = require('events').EventEmitter + , inherits = require('inherits') + , urlUtils = require('./utils/url') + , XDR = require('./transport/sender/xdr') + , XHRCors = require('./transport/sender/xhr-cors') + , XHRLocal = require('./transport/sender/xhr-local') + , XHRFake = require('./transport/sender/xhr-fake') + , InfoIframe = require('./info-iframe') + , InfoAjax = require('./info-ajax') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:info-receiver'); +} + +function InfoReceiver(baseUrl, urlInfo) { + debug(baseUrl); + var self = this; + EventEmitter.call(this); + + setTimeout(function() { + self.doXhr(baseUrl, urlInfo); + }, 0); +} + +inherits(InfoReceiver, EventEmitter); + +// TODO this is currently ignoring the list of available transports and the whitelist + +InfoReceiver._getReceiver = function(baseUrl, url, urlInfo) { + // determine method of CORS support (if needed) + if (urlInfo.sameOrigin) { + return new InfoAjax(url, XHRLocal); + } + if (XHRCors.enabled) { + return new InfoAjax(url, XHRCors); + } + if (XDR.enabled && urlInfo.sameScheme) { + return new InfoAjax(url, XDR); + } + if (InfoIframe.enabled()) { + return new InfoIframe(baseUrl, url); + } + return new InfoAjax(url, XHRFake); +}; + +InfoReceiver.prototype.doXhr = function(baseUrl, urlInfo) { + var self = this + , url = urlUtils.addPath(baseUrl, '/info') + ; + debug('doXhr', url); + + this.xo = InfoReceiver._getReceiver(baseUrl, url, urlInfo); + + this.timeoutRef = setTimeout(function() { + debug('timeout'); + self._cleanup(false); + self.emit('finish'); + }, InfoReceiver.timeout); + + this.xo.once('finish', function(info, rtt) { + debug('finish', info, rtt); + self._cleanup(true); + self.emit('finish', info, rtt); + }); +}; + +InfoReceiver.prototype._cleanup = function(wasClean) { + debug('_cleanup'); + clearTimeout(this.timeoutRef); + this.timeoutRef = null; + if (!wasClean && this.xo) { + this.xo.close(); + } + this.xo = null; +}; + +InfoReceiver.prototype.close = function() { + debug('close'); + this.removeAllListeners(); + this._cleanup(false); +}; + +InfoReceiver.timeout = 8000; + +module.exports = InfoReceiver; + +}).call(this,{ env: {} }) + +},{"./info-ajax":9,"./info-iframe":11,"./transport/sender/xdr":34,"./transport/sender/xhr-cors":35,"./transport/sender/xhr-fake":36,"./transport/sender/xhr-local":37,"./utils/url":52,"debug":55,"events":3,"inherits":57}],13:[function(require,module,exports){ +(function (global){ +'use strict'; + +module.exports = global.location || { + origin: 'http://localhost:80' +, protocol: 'http:' +, host: 'localhost' +, port: 80 +, href: 'http://localhost/' +, hash: '' +}; + +}).call(this,typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{}],14:[function(require,module,exports){ +(function (process,global){ +'use strict'; + +require('./shims'); + +var URL = require('url-parse') + , inherits = require('inherits') + , JSON3 = require('json3') + , random = require('./utils/random') + , escape = require('./utils/escape') + , urlUtils = require('./utils/url') + , eventUtils = require('./utils/event') + , transport = require('./utils/transport') + , objectUtils = require('./utils/object') + , browser = require('./utils/browser') + , log = require('./utils/log') + , Event = require('./event/event') + , EventTarget = require('./event/eventtarget') + , loc = require('./location') + , CloseEvent = require('./event/close') + , TransportMessageEvent = require('./event/trans-message') + , InfoReceiver = require('./info-receiver') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:main'); +} + +var transports; + +// follow constructor steps defined at http://dev.w3.org/html5/websockets/#the-websocket-interface +function SockJS(url, protocols, options) { + if (!(this instanceof SockJS)) { + return new SockJS(url, protocols, options); + } + if (arguments.length < 1) { + throw new TypeError("Failed to construct 'SockJS: 1 argument required, but only 0 present"); + } + EventTarget.call(this); + + this.readyState = SockJS.CONNECTING; + this.extensions = ''; + this.protocol = ''; + + // non-standard extension + options = options || {}; + if (options.protocols_whitelist) { + log.warn("'protocols_whitelist' is DEPRECATED. Use 'transports' instead."); + } + this._transportsWhitelist = options.transports; + this._transportOptions = options.transportOptions || {}; + this._timeout = options.timeout || 0; + + var sessionId = options.sessionId || 8; + if (typeof sessionId === 'function') { + this._generateSessionId = sessionId; + } else if (typeof sessionId === 'number') { + this._generateSessionId = function() { + return random.string(sessionId); + }; + } else { + throw new TypeError('If sessionId is used in the options, it needs to be a number or a function.'); + } + + this._server = options.server || random.numberString(1000); + + // Step 1 of WS spec - parse and validate the url. Issue #8 + var parsedUrl = new URL(url); + if (!parsedUrl.host || !parsedUrl.protocol) { + throw new SyntaxError("The URL '" + url + "' is invalid"); + } else if (parsedUrl.hash) { + throw new SyntaxError('The URL must not contain a fragment'); + } else if (parsedUrl.protocol !== 'http:' && parsedUrl.protocol !== 'https:') { + throw new SyntaxError("The URL's scheme must be either 'http:' or 'https:'. '" + parsedUrl.protocol + "' is not allowed."); + } + + var secure = parsedUrl.protocol === 'https:'; + // Step 2 - don't allow secure origin with an insecure protocol + if (loc.protocol === 'https:' && !secure) { + // exception is 127.0.0.0/8 and ::1 urls + if (!urlUtils.isLoopbackAddr(parsedUrl.hostname)) { + throw new Error('SecurityError: An insecure SockJS connection may not be initiated from a page loaded over HTTPS'); + } + } + + // Step 3 - check port access - no need here + // Step 4 - parse protocols argument + if (!protocols) { + protocols = []; + } else if (!Array.isArray(protocols)) { + protocols = [protocols]; + } + + // Step 5 - check protocols argument + var sortedProtocols = protocols.sort(); + sortedProtocols.forEach(function(proto, i) { + if (!proto) { + throw new SyntaxError("The protocols entry '" + proto + "' is invalid."); + } + if (i < (sortedProtocols.length - 1) && proto === sortedProtocols[i + 1]) { + throw new SyntaxError("The protocols entry '" + proto + "' is duplicated."); + } + }); + + // Step 6 - convert origin + var o = urlUtils.getOrigin(loc.href); + this._origin = o ? o.toLowerCase() : null; + + // remove the trailing slash + parsedUrl.set('pathname', parsedUrl.pathname.replace(/\/+$/, '')); + + // store the sanitized url + this.url = parsedUrl.href; + debug('using url', this.url); + + // Step 7 - start connection in background + // obtain server info + // http://sockjs.github.io/sockjs-protocol/sockjs-protocol-0.3.3.html#section-26 + this._urlInfo = { + nullOrigin: !browser.hasDomain() + , sameOrigin: urlUtils.isOriginEqual(this.url, loc.href) + , sameScheme: urlUtils.isSchemeEqual(this.url, loc.href) + }; + + this._ir = new InfoReceiver(this.url, this._urlInfo); + this._ir.once('finish', this._receiveInfo.bind(this)); +} + +inherits(SockJS, EventTarget); + +function userSetCode(code) { + return code === 1000 || (code >= 3000 && code <= 4999); +} + +SockJS.prototype.close = function(code, reason) { + // Step 1 + if (code && !userSetCode(code)) { + throw new Error('InvalidAccessError: Invalid code'); + } + // Step 2.4 states the max is 123 bytes, but we are just checking length + if (reason && reason.length > 123) { + throw new SyntaxError('reason argument has an invalid length'); + } + + // Step 3.1 + if (this.readyState === SockJS.CLOSING || this.readyState === SockJS.CLOSED) { + return; + } + + // TODO look at docs to determine how to set this + var wasClean = true; + this._close(code || 1000, reason || 'Normal closure', wasClean); +}; + +SockJS.prototype.send = function(data) { + // #13 - convert anything non-string to string + // TODO this currently turns objects into [object Object] + if (typeof data !== 'string') { + data = '' + data; + } + if (this.readyState === SockJS.CONNECTING) { + throw new Error('InvalidStateError: The connection has not been established yet'); + } + if (this.readyState !== SockJS.OPEN) { + return; + } + this._transport.send(escape.quote(data)); +}; + +SockJS.version = require('./version'); + +SockJS.CONNECTING = 0; +SockJS.OPEN = 1; +SockJS.CLOSING = 2; +SockJS.CLOSED = 3; + +SockJS.prototype._receiveInfo = function(info, rtt) { + debug('_receiveInfo', rtt); + this._ir = null; + if (!info) { + this._close(1002, 'Cannot connect to server'); + return; + } + + // establish a round-trip timeout (RTO) based on the + // round-trip time (RTT) + this._rto = this.countRTO(rtt); + // allow server to override url used for the actual transport + this._transUrl = info.base_url ? info.base_url : this.url; + info = objectUtils.extend(info, this._urlInfo); + debug('info', info); + // determine list of desired and supported transports + var enabledTransports = transports.filterToEnabled(this._transportsWhitelist, info); + this._transports = enabledTransports.main; + debug(this._transports.length + ' enabled transports'); + + this._connect(); +}; + +SockJS.prototype._connect = function() { + for (var Transport = this._transports.shift(); Transport; Transport = this._transports.shift()) { + debug('attempt', Transport.transportName); + if (Transport.needBody) { + if (!global.document.body || + (typeof global.document.readyState !== 'undefined' && + global.document.readyState !== 'complete' && + global.document.readyState !== 'interactive')) { + debug('waiting for body'); + this._transports.unshift(Transport); + eventUtils.attachEvent('load', this._connect.bind(this)); + return; + } + } + + // calculate timeout based on RTO and round trips. Default to 5s + var timeoutMs = Math.max(this._timeout, (this._rto * Transport.roundTrips) || 5000); + this._transportTimeoutId = setTimeout(this._transportTimeout.bind(this), timeoutMs); + debug('using timeout', timeoutMs); + + var transportUrl = urlUtils.addPath(this._transUrl, '/' + this._server + '/' + this._generateSessionId()); + var options = this._transportOptions[Transport.transportName]; + debug('transport url', transportUrl); + var transportObj = new Transport(transportUrl, this._transUrl, options); + transportObj.on('message', this._transportMessage.bind(this)); + transportObj.once('close', this._transportClose.bind(this)); + transportObj.transportName = Transport.transportName; + this._transport = transportObj; + + return; + } + this._close(2000, 'All transports failed', false); +}; + +SockJS.prototype._transportTimeout = function() { + debug('_transportTimeout'); + if (this.readyState === SockJS.CONNECTING) { + if (this._transport) { + this._transport.close(); + } + + this._transportClose(2007, 'Transport timed out'); + } +}; + +SockJS.prototype._transportMessage = function(msg) { + debug('_transportMessage', msg); + var self = this + , type = msg.slice(0, 1) + , content = msg.slice(1) + , payload + ; + + // first check for messages that don't need a payload + switch (type) { + case 'o': + this._open(); + return; + case 'h': + this.dispatchEvent(new Event('heartbeat')); + debug('heartbeat', this.transport); + return; + } + + if (content) { + try { + payload = JSON3.parse(content); + } catch (e) { + debug('bad json', content); + } + } + + if (typeof payload === 'undefined') { + debug('empty payload', content); + return; + } + + switch (type) { + case 'a': + if (Array.isArray(payload)) { + payload.forEach(function(p) { + debug('message', self.transport, p); + self.dispatchEvent(new TransportMessageEvent(p)); + }); + } + break; + case 'm': + debug('message', this.transport, payload); + this.dispatchEvent(new TransportMessageEvent(payload)); + break; + case 'c': + if (Array.isArray(payload) && payload.length === 2) { + this._close(payload[0], payload[1], true); + } + break; + } +}; + +SockJS.prototype._transportClose = function(code, reason) { + debug('_transportClose', this.transport, code, reason); + if (this._transport) { + this._transport.removeAllListeners(); + this._transport = null; + this.transport = null; + } + + if (!userSetCode(code) && code !== 2000 && this.readyState === SockJS.CONNECTING) { + this._connect(); + return; + } + + this._close(code, reason); +}; + +SockJS.prototype._open = function() { + debug('_open', this._transport && this._transport.transportName, this.readyState); + if (this.readyState === SockJS.CONNECTING) { + if (this._transportTimeoutId) { + clearTimeout(this._transportTimeoutId); + this._transportTimeoutId = null; + } + this.readyState = SockJS.OPEN; + this.transport = this._transport.transportName; + this.dispatchEvent(new Event('open')); + debug('connected', this.transport); + } else { + // The server might have been restarted, and lost track of our + // connection. + this._close(1006, 'Server lost session'); + } +}; + +SockJS.prototype._close = function(code, reason, wasClean) { + debug('_close', this.transport, code, reason, wasClean, this.readyState); + var forceFail = false; + + if (this._ir) { + forceFail = true; + this._ir.close(); + this._ir = null; + } + if (this._transport) { + this._transport.close(); + this._transport = null; + this.transport = null; + } + + if (this.readyState === SockJS.CLOSED) { + throw new Error('InvalidStateError: SockJS has already been closed'); + } + + this.readyState = SockJS.CLOSING; + setTimeout(function() { + this.readyState = SockJS.CLOSED; + + if (forceFail) { + this.dispatchEvent(new Event('error')); + } + + var e = new CloseEvent('close'); + e.wasClean = wasClean || false; + e.code = code || 1000; + e.reason = reason; + + this.dispatchEvent(e); + this.onmessage = this.onclose = this.onerror = null; + debug('disconnected'); + }.bind(this), 0); +}; + +// See: http://www.erg.abdn.ac.uk/~gerrit/dccp/notes/ccid2/rto_estimator/ +// and RFC 2988. +SockJS.prototype.countRTO = function(rtt) { + // In a local environment, when using IE8/9 and the `jsonp-polling` + // transport the time needed to establish a connection (the time that pass + // from the opening of the transport to the call of `_dispatchOpen`) is + // around 200msec (the lower bound used in the article above) and this + // causes spurious timeouts. For this reason we calculate a value slightly + // larger than that used in the article. + if (rtt > 100) { + return 4 * rtt; // rto > 400msec + } + return 300 + rtt; // 300msec < rto <= 400msec +}; + +module.exports = function(availableTransports) { + transports = transport(availableTransports); + require('./iframe-bootstrap')(SockJS, availableTransports); + return SockJS; +}; + +}).call(this,{ env: {} },typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{"./event/close":2,"./event/event":4,"./event/eventtarget":5,"./event/trans-message":6,"./iframe-bootstrap":8,"./info-receiver":12,"./location":13,"./shims":15,"./utils/browser":44,"./utils/escape":45,"./utils/event":46,"./utils/log":48,"./utils/object":49,"./utils/random":50,"./utils/transport":51,"./utils/url":52,"./version":53,"debug":55,"inherits":57,"json3":58,"url-parse":61}],15:[function(require,module,exports){ +/* eslint-disable */ +/* jscs: disable */ +'use strict'; + +// pulled specific shims from https://github.com/es-shims/es5-shim + +var ArrayPrototype = Array.prototype; +var ObjectPrototype = Object.prototype; +var FunctionPrototype = Function.prototype; +var StringPrototype = String.prototype; +var array_slice = ArrayPrototype.slice; + +var _toString = ObjectPrototype.toString; +var isFunction = function (val) { + return ObjectPrototype.toString.call(val) === '[object Function]'; +}; +var isArray = function isArray(obj) { + return _toString.call(obj) === '[object Array]'; +}; +var isString = function isString(obj) { + return _toString.call(obj) === '[object String]'; +}; + +var supportsDescriptors = Object.defineProperty && (function () { + try { + Object.defineProperty({}, 'x', {}); + return true; + } catch (e) { /* this is ES3 */ + return false; + } +}()); + +// Define configurable, writable and non-enumerable props +// if they don't exist. +var defineProperty; +if (supportsDescriptors) { + defineProperty = function (object, name, method, forceAssign) { + if (!forceAssign && (name in object)) { return; } + Object.defineProperty(object, name, { + configurable: true, + enumerable: false, + writable: true, + value: method + }); + }; +} else { + defineProperty = function (object, name, method, forceAssign) { + if (!forceAssign && (name in object)) { return; } + object[name] = method; + }; +} +var defineProperties = function (object, map, forceAssign) { + for (var name in map) { + if (ObjectPrototype.hasOwnProperty.call(map, name)) { + defineProperty(object, name, map[name], forceAssign); + } + } +}; + +var toObject = function (o) { + if (o == null) { // this matches both null and undefined + throw new TypeError("can't convert " + o + ' to object'); + } + return Object(o); +}; + +// +// Util +// ====== +// + +// ES5 9.4 +// http://es5.github.com/#x9.4 +// http://jsperf.com/to-integer + +function toInteger(num) { + var n = +num; + if (n !== n) { // isNaN + n = 0; + } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) { + n = (n > 0 || -1) * Math.floor(Math.abs(n)); + } + return n; +} + +function ToUint32(x) { + return x >>> 0; +} + +// +// Function +// ======== +// + +// ES-5 15.3.4.5 +// http://es5.github.com/#x15.3.4.5 + +function Empty() {} + +defineProperties(FunctionPrototype, { + bind: function bind(that) { // .length is 1 + // 1. Let Target be the this value. + var target = this; + // 2. If IsCallable(Target) is false, throw a TypeError exception. + if (!isFunction(target)) { + throw new TypeError('Function.prototype.bind called on incompatible ' + target); + } + // 3. Let A be a new (possibly empty) internal list of all of the + // argument values provided after thisArg (arg1, arg2 etc), in order. + // XXX slicedArgs will stand in for "A" if used + var args = array_slice.call(arguments, 1); // for normal call + // 4. Let F be a new native ECMAScript object. + // 11. Set the [[Prototype]] internal property of F to the standard + // built-in Function prototype object as specified in 15.3.3.1. + // 12. Set the [[Call]] internal property of F as described in + // 15.3.4.5.1. + // 13. Set the [[Construct]] internal property of F as described in + // 15.3.4.5.2. + // 14. Set the [[HasInstance]] internal property of F as described in + // 15.3.4.5.3. + var binder = function () { + + if (this instanceof bound) { + // 15.3.4.5.2 [[Construct]] + // When the [[Construct]] internal method of a function object, + // F that was created using the bind function is called with a + // list of arguments ExtraArgs, the following steps are taken: + // 1. Let target be the value of F's [[TargetFunction]] + // internal property. + // 2. If target has no [[Construct]] internal method, a + // TypeError exception is thrown. + // 3. Let boundArgs be the value of F's [[BoundArgs]] internal + // property. + // 4. Let args be a new list containing the same values as the + // list boundArgs in the same order followed by the same + // values as the list ExtraArgs in the same order. + // 5. Return the result of calling the [[Construct]] internal + // method of target providing args as the arguments. + + var result = target.apply( + this, + args.concat(array_slice.call(arguments)) + ); + if (Object(result) === result) { + return result; + } + return this; + + } else { + // 15.3.4.5.1 [[Call]] + // When the [[Call]] internal method of a function object, F, + // which was created using the bind function is called with a + // this value and a list of arguments ExtraArgs, the following + // steps are taken: + // 1. Let boundArgs be the value of F's [[BoundArgs]] internal + // property. + // 2. Let boundThis be the value of F's [[BoundThis]] internal + // property. + // 3. Let target be the value of F's [[TargetFunction]] internal + // property. + // 4. Let args be a new list containing the same values as the + // list boundArgs in the same order followed by the same + // values as the list ExtraArgs in the same order. + // 5. Return the result of calling the [[Call]] internal method + // of target providing boundThis as the this value and + // providing args as the arguments. + + // equiv: target.call(this, ...boundArgs, ...args) + return target.apply( + that, + args.concat(array_slice.call(arguments)) + ); + + } + + }; + + // 15. If the [[Class]] internal property of Target is "Function", then + // a. Let L be the length property of Target minus the length of A. + // b. Set the length own property of F to either 0 or L, whichever is + // larger. + // 16. Else set the length own property of F to 0. + + var boundLength = Math.max(0, target.length - args.length); + + // 17. Set the attributes of the length own property of F to the values + // specified in 15.3.5.1. + var boundArgs = []; + for (var i = 0; i < boundLength; i++) { + boundArgs.push('$' + i); + } + + // XXX Build a dynamic function with desired amount of arguments is the only + // way to set the length property of a function. + // In environments where Content Security Policies enabled (Chrome extensions, + // for ex.) all use of eval or Function costructor throws an exception. + // However in all of these environments Function.prototype.bind exists + // and so this code will never be executed. + var bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this, arguments); }')(binder); + + if (target.prototype) { + Empty.prototype = target.prototype; + bound.prototype = new Empty(); + // Clean up dangling references. + Empty.prototype = null; + } + + // TODO + // 18. Set the [[Extensible]] internal property of F to true. + + // TODO + // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3). + // 20. Call the [[DefineOwnProperty]] internal method of F with + // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]: + // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and + // false. + // 21. Call the [[DefineOwnProperty]] internal method of F with + // arguments "arguments", PropertyDescriptor {[[Get]]: thrower, + // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false}, + // and false. + + // TODO + // NOTE Function objects created using Function.prototype.bind do not + // have a prototype property or the [[Code]], [[FormalParameters]], and + // [[Scope]] internal properties. + // XXX can't delete prototype in pure-js. + + // 22. Return F. + return bound; + } +}); + +// +// Array +// ===== +// + +// ES5 15.4.3.2 +// http://es5.github.com/#x15.4.3.2 +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray +defineProperties(Array, { isArray: isArray }); + + +var boxedString = Object('a'); +var splitString = boxedString[0] !== 'a' || !(0 in boxedString); + +var properlyBoxesContext = function properlyBoxed(method) { + // Check node 0.6.21 bug where third parameter is not boxed + var properlyBoxesNonStrict = true; + var properlyBoxesStrict = true; + if (method) { + method.call('foo', function (_, __, context) { + if (typeof context !== 'object') { properlyBoxesNonStrict = false; } + }); + + method.call([1], function () { + 'use strict'; + properlyBoxesStrict = typeof this === 'string'; + }, 'x'); + } + return !!method && properlyBoxesNonStrict && properlyBoxesStrict; +}; + +defineProperties(ArrayPrototype, { + forEach: function forEach(fun /*, thisp*/) { + var object = toObject(this), + self = splitString && isString(this) ? this.split('') : object, + thisp = arguments[1], + i = -1, + length = self.length >>> 0; + + // If no callback function or if callback is not a callable function + if (!isFunction(fun)) { + throw new TypeError(); // TODO message + } + + while (++i < length) { + if (i in self) { + // Invoke the callback function with call, passing arguments: + // context, property value, property key, thisArg object + // context + fun.call(thisp, self[i], i, object); + } + } + } +}, !properlyBoxesContext(ArrayPrototype.forEach)); + +// ES5 15.4.4.14 +// http://es5.github.com/#x15.4.4.14 +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf +var hasFirefox2IndexOfBug = Array.prototype.indexOf && [0, 1].indexOf(1, 2) !== -1; +defineProperties(ArrayPrototype, { + indexOf: function indexOf(sought /*, fromIndex */ ) { + var self = splitString && isString(this) ? this.split('') : toObject(this), + length = self.length >>> 0; + + if (!length) { + return -1; + } + + var i = 0; + if (arguments.length > 1) { + i = toInteger(arguments[1]); + } + + // handle negative indices + i = i >= 0 ? i : Math.max(0, length + i); + for (; i < length; i++) { + if (i in self && self[i] === sought) { + return i; + } + } + return -1; + } +}, hasFirefox2IndexOfBug); + +// +// String +// ====== +// + +// ES5 15.5.4.14 +// http://es5.github.com/#x15.5.4.14 + +// [bugfix, IE lt 9, firefox 4, Konqueror, Opera, obscure browsers] +// Many browsers do not split properly with regular expressions or they +// do not perform the split correctly under obscure conditions. +// See http://blog.stevenlevithan.com/archives/cross-browser-split +// I've tested in many browsers and this seems to cover the deviant ones: +// 'ab'.split(/(?:ab)*/) should be ["", ""], not [""] +// '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""] +// 'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not +// [undefined, "t", undefined, "e", ...] +// ''.split(/.?/) should be [], not [""] +// '.'.split(/()()/) should be ["."], not ["", "", "."] + +var string_split = StringPrototype.split; +if ( + 'ab'.split(/(?:ab)*/).length !== 2 || + '.'.split(/(.?)(.?)/).length !== 4 || + 'tesst'.split(/(s)*/)[1] === 't' || + 'test'.split(/(?:)/, -1).length !== 4 || + ''.split(/.?/).length || + '.'.split(/()()/).length > 1 +) { + (function () { + var compliantExecNpcg = /()??/.exec('')[1] === void 0; // NPCG: nonparticipating capturing group + + StringPrototype.split = function (separator, limit) { + var string = this; + if (separator === void 0 && limit === 0) { + return []; + } + + // If `separator` is not a regex, use native split + if (_toString.call(separator) !== '[object RegExp]') { + return string_split.call(this, separator, limit); + } + + var output = [], + flags = (separator.ignoreCase ? 'i' : '') + + (separator.multiline ? 'm' : '') + + (separator.extended ? 'x' : '') + // Proposed for ES6 + (separator.sticky ? 'y' : ''), // Firefox 3+ + lastLastIndex = 0, + // Make `global` and avoid `lastIndex` issues by working with a copy + separator2, match, lastIndex, lastLength; + separator = new RegExp(separator.source, flags + 'g'); + string += ''; // Type-convert + if (!compliantExecNpcg) { + // Doesn't need flags gy, but they don't hurt + separator2 = new RegExp('^' + separator.source + '$(?!\\s)', flags); + } + /* Values for `limit`, per the spec: + * If undefined: 4294967295 // Math.pow(2, 32) - 1 + * If 0, Infinity, or NaN: 0 + * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296; + * If negative number: 4294967296 - Math.floor(Math.abs(limit)) + * If other: Type-convert, then use the above rules + */ + limit = limit === void 0 ? + -1 >>> 0 : // Math.pow(2, 32) - 1 + ToUint32(limit); + while (match = separator.exec(string)) { + // `separator.lastIndex` is not reliable cross-browser + lastIndex = match.index + match[0].length; + if (lastIndex > lastLastIndex) { + output.push(string.slice(lastLastIndex, match.index)); + // Fix browsers whose `exec` methods don't consistently return `undefined` for + // nonparticipating capturing groups + if (!compliantExecNpcg && match.length > 1) { + match[0].replace(separator2, function () { + for (var i = 1; i < arguments.length - 2; i++) { + if (arguments[i] === void 0) { + match[i] = void 0; + } + } + }); + } + if (match.length > 1 && match.index < string.length) { + ArrayPrototype.push.apply(output, match.slice(1)); + } + lastLength = match[0].length; + lastLastIndex = lastIndex; + if (output.length >= limit) { + break; + } + } + if (separator.lastIndex === match.index) { + separator.lastIndex++; // Avoid an infinite loop + } + } + if (lastLastIndex === string.length) { + if (lastLength || !separator.test('')) { + output.push(''); + } + } else { + output.push(string.slice(lastLastIndex)); + } + return output.length > limit ? output.slice(0, limit) : output; + }; + }()); + +// [bugfix, chrome] +// If separator is undefined, then the result array contains just one String, +// which is the this value (converted to a String). If limit is not undefined, +// then the output array is truncated so that it contains no more than limit +// elements. +// "0".split(undefined, 0) -> [] +} else if ('0'.split(void 0, 0).length) { + StringPrototype.split = function split(separator, limit) { + if (separator === void 0 && limit === 0) { return []; } + return string_split.call(this, separator, limit); + }; +} + +// ECMA-262, 3rd B.2.3 +// Not an ECMAScript standard, although ECMAScript 3rd Edition has a +// non-normative section suggesting uniform semantics and it should be +// normalized across all browsers +// [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE +var string_substr = StringPrototype.substr; +var hasNegativeSubstrBug = ''.substr && '0b'.substr(-1) !== 'b'; +defineProperties(StringPrototype, { + substr: function substr(start, length) { + return string_substr.call( + this, + start < 0 ? ((start = this.length + start) < 0 ? 0 : start) : start, + length + ); + } +}, hasNegativeSubstrBug); + +},{}],16:[function(require,module,exports){ +'use strict'; + +module.exports = [ + // streaming transports + require('./transport/websocket') +, require('./transport/xhr-streaming') +, require('./transport/xdr-streaming') +, require('./transport/eventsource') +, require('./transport/lib/iframe-wrap')(require('./transport/eventsource')) + + // polling transports +, require('./transport/htmlfile') +, require('./transport/lib/iframe-wrap')(require('./transport/htmlfile')) +, require('./transport/xhr-polling') +, require('./transport/xdr-polling') +, require('./transport/lib/iframe-wrap')(require('./transport/xhr-polling')) +, require('./transport/jsonp-polling') +]; + +},{"./transport/eventsource":20,"./transport/htmlfile":21,"./transport/jsonp-polling":23,"./transport/lib/iframe-wrap":26,"./transport/websocket":38,"./transport/xdr-polling":39,"./transport/xdr-streaming":40,"./transport/xhr-polling":41,"./transport/xhr-streaming":42}],17:[function(require,module,exports){ +(function (process,global){ +'use strict'; + +var EventEmitter = require('events').EventEmitter + , inherits = require('inherits') + , utils = require('../../utils/event') + , urlUtils = require('../../utils/url') + , XHR = global.XMLHttpRequest + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:browser:xhr'); +} + +function AbstractXHRObject(method, url, payload, opts) { + debug(method, url); + var self = this; + EventEmitter.call(this); + + setTimeout(function () { + self._start(method, url, payload, opts); + }, 0); +} + +inherits(AbstractXHRObject, EventEmitter); + +AbstractXHRObject.prototype._start = function(method, url, payload, opts) { + var self = this; + + try { + this.xhr = new XHR(); + } catch (x) { + // intentionally empty + } + + if (!this.xhr) { + debug('no xhr'); + this.emit('finish', 0, 'no xhr support'); + this._cleanup(); + return; + } + + // several browsers cache POSTs + url = urlUtils.addQuery(url, 't=' + (+new Date())); + + // Explorer tends to keep connection open, even after the + // tab gets closed: http://bugs.jquery.com/ticket/5280 + this.unloadRef = utils.unloadAdd(function() { + debug('unload cleanup'); + self._cleanup(true); + }); + try { + this.xhr.open(method, url, true); + if (this.timeout && 'timeout' in this.xhr) { + this.xhr.timeout = this.timeout; + this.xhr.ontimeout = function() { + debug('xhr timeout'); + self.emit('finish', 0, ''); + self._cleanup(false); + }; + } + } catch (e) { + debug('exception', e); + // IE raises an exception on wrong port. + this.emit('finish', 0, ''); + this._cleanup(false); + return; + } + + if ((!opts || !opts.noCredentials) && AbstractXHRObject.supportsCORS) { + debug('withCredentials'); + // Mozilla docs says https://developer.mozilla.org/en/XMLHttpRequest : + // "This never affects same-site requests." + + this.xhr.withCredentials = true; + } + if (opts && opts.headers) { + for (var key in opts.headers) { + this.xhr.setRequestHeader(key, opts.headers[key]); + } + } + + this.xhr.onreadystatechange = function() { + if (self.xhr) { + var x = self.xhr; + var text, status; + debug('readyState', x.readyState); + switch (x.readyState) { + case 3: + // IE doesn't like peeking into responseText or status + // on Microsoft.XMLHTTP and readystate=3 + try { + status = x.status; + text = x.responseText; + } catch (e) { + // intentionally empty + } + debug('status', status); + // IE returns 1223 for 204: http://bugs.jquery.com/ticket/1450 + if (status === 1223) { + status = 204; + } + + // IE does return readystate == 3 for 404 answers. + if (status === 200 && text && text.length > 0) { + debug('chunk'); + self.emit('chunk', status, text); + } + break; + case 4: + status = x.status; + debug('status', status); + // IE returns 1223 for 204: http://bugs.jquery.com/ticket/1450 + if (status === 1223) { + status = 204; + } + // IE returns this for a bad port + // http://msdn.microsoft.com/en-us/library/windows/desktop/aa383770(v=vs.85).aspx + if (status === 12005 || status === 12029) { + status = 0; + } + + debug('finish', status, x.responseText); + self.emit('finish', status, x.responseText); + self._cleanup(false); + break; + } + } + }; + + try { + self.xhr.send(payload); + } catch (e) { + self.emit('finish', 0, ''); + self._cleanup(false); + } +}; + +AbstractXHRObject.prototype._cleanup = function(abort) { + debug('cleanup'); + if (!this.xhr) { + return; + } + this.removeAllListeners(); + utils.unloadDel(this.unloadRef); + + // IE needs this field to be a function + this.xhr.onreadystatechange = function() {}; + if (this.xhr.ontimeout) { + this.xhr.ontimeout = null; + } + + if (abort) { + try { + this.xhr.abort(); + } catch (x) { + // intentionally empty + } + } + this.unloadRef = this.xhr = null; +}; + +AbstractXHRObject.prototype.close = function() { + debug('close'); + this._cleanup(true); +}; + +AbstractXHRObject.enabled = !!XHR; +// override XMLHttpRequest for IE6/7 +// obfuscate to avoid firewalls +var axo = ['Active'].concat('Object').join('X'); +if (!AbstractXHRObject.enabled && (axo in global)) { + debug('overriding xmlhttprequest'); + XHR = function() { + try { + return new global[axo]('Microsoft.XMLHTTP'); + } catch (e) { + return null; + } + }; + AbstractXHRObject.enabled = !!new XHR(); +} + +var cors = false; +try { + cors = 'withCredentials' in new XHR(); +} catch (ignored) { + // intentionally empty +} + +AbstractXHRObject.supportsCORS = cors; + +module.exports = AbstractXHRObject; + +}).call(this,{ env: {} },typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{"../../utils/event":46,"../../utils/url":52,"debug":55,"events":3,"inherits":57}],18:[function(require,module,exports){ +(function (global){ +module.exports = global.EventSource; + +}).call(this,typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{}],19:[function(require,module,exports){ +(function (global){ +'use strict'; + +var Driver = global.WebSocket || global.MozWebSocket; +if (Driver) { + module.exports = function WebSocketBrowserDriver(url) { + return new Driver(url); + }; +} else { + module.exports = undefined; +} + +}).call(this,typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{}],20:[function(require,module,exports){ +'use strict'; + +var inherits = require('inherits') + , AjaxBasedTransport = require('./lib/ajax-based') + , EventSourceReceiver = require('./receiver/eventsource') + , XHRCorsObject = require('./sender/xhr-cors') + , EventSourceDriver = require('eventsource') + ; + +function EventSourceTransport(transUrl) { + if (!EventSourceTransport.enabled()) { + throw new Error('Transport created when disabled'); + } + + AjaxBasedTransport.call(this, transUrl, '/eventsource', EventSourceReceiver, XHRCorsObject); +} + +inherits(EventSourceTransport, AjaxBasedTransport); + +EventSourceTransport.enabled = function() { + return !!EventSourceDriver; +}; + +EventSourceTransport.transportName = 'eventsource'; +EventSourceTransport.roundTrips = 2; + +module.exports = EventSourceTransport; + +},{"./lib/ajax-based":24,"./receiver/eventsource":29,"./sender/xhr-cors":35,"eventsource":18,"inherits":57}],21:[function(require,module,exports){ +'use strict'; + +var inherits = require('inherits') + , HtmlfileReceiver = require('./receiver/htmlfile') + , XHRLocalObject = require('./sender/xhr-local') + , AjaxBasedTransport = require('./lib/ajax-based') + ; + +function HtmlFileTransport(transUrl) { + if (!HtmlfileReceiver.enabled) { + throw new Error('Transport created when disabled'); + } + AjaxBasedTransport.call(this, transUrl, '/htmlfile', HtmlfileReceiver, XHRLocalObject); +} + +inherits(HtmlFileTransport, AjaxBasedTransport); + +HtmlFileTransport.enabled = function(info) { + return HtmlfileReceiver.enabled && info.sameOrigin; +}; + +HtmlFileTransport.transportName = 'htmlfile'; +HtmlFileTransport.roundTrips = 2; + +module.exports = HtmlFileTransport; + +},{"./lib/ajax-based":24,"./receiver/htmlfile":30,"./sender/xhr-local":37,"inherits":57}],22:[function(require,module,exports){ +(function (process){ +'use strict'; + +// Few cool transports do work only for same-origin. In order to make +// them work cross-domain we shall use iframe, served from the +// remote domain. New browsers have capabilities to communicate with +// cross domain iframe using postMessage(). In IE it was implemented +// from IE 8+, but of course, IE got some details wrong: +// http://msdn.microsoft.com/en-us/library/cc197015(v=VS.85).aspx +// http://stevesouders.com/misc/test-postmessage.php + +var inherits = require('inherits') + , JSON3 = require('json3') + , EventEmitter = require('events').EventEmitter + , version = require('../version') + , urlUtils = require('../utils/url') + , iframeUtils = require('../utils/iframe') + , eventUtils = require('../utils/event') + , random = require('../utils/random') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:transport:iframe'); +} + +function IframeTransport(transport, transUrl, baseUrl) { + if (!IframeTransport.enabled()) { + throw new Error('Transport created when disabled'); + } + EventEmitter.call(this); + + var self = this; + this.origin = urlUtils.getOrigin(baseUrl); + this.baseUrl = baseUrl; + this.transUrl = transUrl; + this.transport = transport; + this.windowId = random.string(8); + + var iframeUrl = urlUtils.addPath(baseUrl, '/iframe.html') + '#' + this.windowId; + debug(transport, transUrl, iframeUrl); + + this.iframeObj = iframeUtils.createIframe(iframeUrl, function(r) { + debug('err callback'); + self.emit('close', 1006, 'Unable to load an iframe (' + r + ')'); + self.close(); + }); + + this.onmessageCallback = this._message.bind(this); + eventUtils.attachEvent('message', this.onmessageCallback); +} + +inherits(IframeTransport, EventEmitter); + +IframeTransport.prototype.close = function() { + debug('close'); + this.removeAllListeners(); + if (this.iframeObj) { + eventUtils.detachEvent('message', this.onmessageCallback); + try { + // When the iframe is not loaded, IE raises an exception + // on 'contentWindow'. + this.postMessage('c'); + } catch (x) { + // intentionally empty + } + this.iframeObj.cleanup(); + this.iframeObj = null; + this.onmessageCallback = this.iframeObj = null; + } +}; + +IframeTransport.prototype._message = function(e) { + debug('message', e.data); + if (!urlUtils.isOriginEqual(e.origin, this.origin)) { + debug('not same origin', e.origin, this.origin); + return; + } + + var iframeMessage; + try { + iframeMessage = JSON3.parse(e.data); + } catch (ignored) { + debug('bad json', e.data); + return; + } + + if (iframeMessage.windowId !== this.windowId) { + debug('mismatched window id', iframeMessage.windowId, this.windowId); + return; + } + + switch (iframeMessage.type) { + case 's': + this.iframeObj.loaded(); + // window global dependency + this.postMessage('s', JSON3.stringify([ + version + , this.transport + , this.transUrl + , this.baseUrl + ])); + break; + case 't': + this.emit('message', iframeMessage.data); + break; + case 'c': + var cdata; + try { + cdata = JSON3.parse(iframeMessage.data); + } catch (ignored) { + debug('bad json', iframeMessage.data); + return; + } + this.emit('close', cdata[0], cdata[1]); + this.close(); + break; + } +}; + +IframeTransport.prototype.postMessage = function(type, data) { + debug('postMessage', type, data); + this.iframeObj.post(JSON3.stringify({ + windowId: this.windowId + , type: type + , data: data || '' + }), this.origin); +}; + +IframeTransport.prototype.send = function(message) { + debug('send', message); + this.postMessage('m', message); +}; + +IframeTransport.enabled = function() { + return iframeUtils.iframeEnabled; +}; + +IframeTransport.transportName = 'iframe'; +IframeTransport.roundTrips = 2; + +module.exports = IframeTransport; + +}).call(this,{ env: {} }) + +},{"../utils/event":46,"../utils/iframe":47,"../utils/random":50,"../utils/url":52,"../version":53,"debug":55,"events":3,"inherits":57,"json3":58}],23:[function(require,module,exports){ +(function (global){ +'use strict'; + +// The simplest and most robust transport, using the well-know cross +// domain hack - JSONP. This transport is quite inefficient - one +// message could use up to one http request. But at least it works almost +// everywhere. +// Known limitations: +// o you will get a spinning cursor +// o for Konqueror a dumb timer is needed to detect errors + +var inherits = require('inherits') + , SenderReceiver = require('./lib/sender-receiver') + , JsonpReceiver = require('./receiver/jsonp') + , jsonpSender = require('./sender/jsonp') + ; + +function JsonPTransport(transUrl) { + if (!JsonPTransport.enabled()) { + throw new Error('Transport created when disabled'); + } + SenderReceiver.call(this, transUrl, '/jsonp', jsonpSender, JsonpReceiver); +} + +inherits(JsonPTransport, SenderReceiver); + +JsonPTransport.enabled = function() { + return !!global.document; +}; + +JsonPTransport.transportName = 'jsonp-polling'; +JsonPTransport.roundTrips = 1; +JsonPTransport.needBody = true; + +module.exports = JsonPTransport; + +}).call(this,typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{"./lib/sender-receiver":28,"./receiver/jsonp":31,"./sender/jsonp":33,"inherits":57}],24:[function(require,module,exports){ +(function (process){ +'use strict'; + +var inherits = require('inherits') + , urlUtils = require('../../utils/url') + , SenderReceiver = require('./sender-receiver') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:ajax-based'); +} + +function createAjaxSender(AjaxObject) { + return function(url, payload, callback) { + debug('create ajax sender', url, payload); + var opt = {}; + if (typeof payload === 'string') { + opt.headers = {'Content-type': 'text/plain'}; + } + var ajaxUrl = urlUtils.addPath(url, '/xhr_send'); + var xo = new AjaxObject('POST', ajaxUrl, payload, opt); + xo.once('finish', function(status) { + debug('finish', status); + xo = null; + + if (status !== 200 && status !== 204) { + return callback(new Error('http status ' + status)); + } + callback(); + }); + return function() { + debug('abort'); + xo.close(); + xo = null; + + var err = new Error('Aborted'); + err.code = 1000; + callback(err); + }; + }; +} + +function AjaxBasedTransport(transUrl, urlSuffix, Receiver, AjaxObject) { + SenderReceiver.call(this, transUrl, urlSuffix, createAjaxSender(AjaxObject), Receiver, AjaxObject); +} + +inherits(AjaxBasedTransport, SenderReceiver); + +module.exports = AjaxBasedTransport; + +}).call(this,{ env: {} }) + +},{"../../utils/url":52,"./sender-receiver":28,"debug":55,"inherits":57}],25:[function(require,module,exports){ +(function (process){ +'use strict'; + +var inherits = require('inherits') + , EventEmitter = require('events').EventEmitter + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:buffered-sender'); +} + +function BufferedSender(url, sender) { + debug(url); + EventEmitter.call(this); + this.sendBuffer = []; + this.sender = sender; + this.url = url; +} + +inherits(BufferedSender, EventEmitter); + +BufferedSender.prototype.send = function(message) { + debug('send', message); + this.sendBuffer.push(message); + if (!this.sendStop) { + this.sendSchedule(); + } +}; + +// For polling transports in a situation when in the message callback, +// new message is being send. If the sending connection was started +// before receiving one, it is possible to saturate the network and +// timeout due to the lack of receiving socket. To avoid that we delay +// sending messages by some small time, in order to let receiving +// connection be started beforehand. This is only a halfmeasure and +// does not fix the big problem, but it does make the tests go more +// stable on slow networks. +BufferedSender.prototype.sendScheduleWait = function() { + debug('sendScheduleWait'); + var self = this; + var tref; + this.sendStop = function() { + debug('sendStop'); + self.sendStop = null; + clearTimeout(tref); + }; + tref = setTimeout(function() { + debug('timeout'); + self.sendStop = null; + self.sendSchedule(); + }, 25); +}; + +BufferedSender.prototype.sendSchedule = function() { + debug('sendSchedule', this.sendBuffer.length); + var self = this; + if (this.sendBuffer.length > 0) { + var payload = '[' + this.sendBuffer.join(',') + ']'; + this.sendStop = this.sender(this.url, payload, function(err) { + self.sendStop = null; + if (err) { + debug('error', err); + self.emit('close', err.code || 1006, 'Sending error: ' + err); + self.close(); + } else { + self.sendScheduleWait(); + } + }); + this.sendBuffer = []; + } +}; + +BufferedSender.prototype._cleanup = function() { + debug('_cleanup'); + this.removeAllListeners(); +}; + +BufferedSender.prototype.close = function() { + debug('close'); + this._cleanup(); + if (this.sendStop) { + this.sendStop(); + this.sendStop = null; + } +}; + +module.exports = BufferedSender; + +}).call(this,{ env: {} }) + +},{"debug":55,"events":3,"inherits":57}],26:[function(require,module,exports){ +(function (global){ +'use strict'; + +var inherits = require('inherits') + , IframeTransport = require('../iframe') + , objectUtils = require('../../utils/object') + ; + +module.exports = function(transport) { + + function IframeWrapTransport(transUrl, baseUrl) { + IframeTransport.call(this, transport.transportName, transUrl, baseUrl); + } + + inherits(IframeWrapTransport, IframeTransport); + + IframeWrapTransport.enabled = function(url, info) { + if (!global.document) { + return false; + } + + var iframeInfo = objectUtils.extend({}, info); + iframeInfo.sameOrigin = true; + return transport.enabled(iframeInfo) && IframeTransport.enabled(); + }; + + IframeWrapTransport.transportName = 'iframe-' + transport.transportName; + IframeWrapTransport.needBody = true; + IframeWrapTransport.roundTrips = IframeTransport.roundTrips + transport.roundTrips - 1; // html, javascript (2) + transport - no CORS (1) + + IframeWrapTransport.facadeTransport = transport; + + return IframeWrapTransport; +}; + +}).call(this,typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{"../../utils/object":49,"../iframe":22,"inherits":57}],27:[function(require,module,exports){ +(function (process){ +'use strict'; + +var inherits = require('inherits') + , EventEmitter = require('events').EventEmitter + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:polling'); +} + +function Polling(Receiver, receiveUrl, AjaxObject) { + debug(receiveUrl); + EventEmitter.call(this); + this.Receiver = Receiver; + this.receiveUrl = receiveUrl; + this.AjaxObject = AjaxObject; + this._scheduleReceiver(); +} + +inherits(Polling, EventEmitter); + +Polling.prototype._scheduleReceiver = function() { + debug('_scheduleReceiver'); + var self = this; + var poll = this.poll = new this.Receiver(this.receiveUrl, this.AjaxObject); + + poll.on('message', function(msg) { + debug('message', msg); + self.emit('message', msg); + }); + + poll.once('close', function(code, reason) { + debug('close', code, reason, self.pollIsClosing); + self.poll = poll = null; + + if (!self.pollIsClosing) { + if (reason === 'network') { + self._scheduleReceiver(); + } else { + self.emit('close', code || 1006, reason); + self.removeAllListeners(); + } + } + }); +}; + +Polling.prototype.abort = function() { + debug('abort'); + this.removeAllListeners(); + this.pollIsClosing = true; + if (this.poll) { + this.poll.abort(); + } +}; + +module.exports = Polling; + +}).call(this,{ env: {} }) + +},{"debug":55,"events":3,"inherits":57}],28:[function(require,module,exports){ +(function (process){ +'use strict'; + +var inherits = require('inherits') + , urlUtils = require('../../utils/url') + , BufferedSender = require('./buffered-sender') + , Polling = require('./polling') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:sender-receiver'); +} + +function SenderReceiver(transUrl, urlSuffix, senderFunc, Receiver, AjaxObject) { + var pollUrl = urlUtils.addPath(transUrl, urlSuffix); + debug(pollUrl); + var self = this; + BufferedSender.call(this, transUrl, senderFunc); + + this.poll = new Polling(Receiver, pollUrl, AjaxObject); + this.poll.on('message', function(msg) { + debug('poll message', msg); + self.emit('message', msg); + }); + this.poll.once('close', function(code, reason) { + debug('poll close', code, reason); + self.poll = null; + self.emit('close', code, reason); + self.close(); + }); +} + +inherits(SenderReceiver, BufferedSender); + +SenderReceiver.prototype.close = function() { + BufferedSender.prototype.close.call(this); + debug('close'); + this.removeAllListeners(); + if (this.poll) { + this.poll.abort(); + this.poll = null; + } +}; + +module.exports = SenderReceiver; + +}).call(this,{ env: {} }) + +},{"../../utils/url":52,"./buffered-sender":25,"./polling":27,"debug":55,"inherits":57}],29:[function(require,module,exports){ +(function (process){ +'use strict'; + +var inherits = require('inherits') + , EventEmitter = require('events').EventEmitter + , EventSourceDriver = require('eventsource') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:receiver:eventsource'); +} + +function EventSourceReceiver(url) { + debug(url); + EventEmitter.call(this); + + var self = this; + var es = this.es = new EventSourceDriver(url); + es.onmessage = function(e) { + debug('message', e.data); + self.emit('message', decodeURI(e.data)); + }; + es.onerror = function(e) { + debug('error', es.readyState, e); + // ES on reconnection has readyState = 0 or 1. + // on network error it's CLOSED = 2 + var reason = (es.readyState !== 2 ? 'network' : 'permanent'); + self._cleanup(); + self._close(reason); + }; +} + +inherits(EventSourceReceiver, EventEmitter); + +EventSourceReceiver.prototype.abort = function() { + debug('abort'); + this._cleanup(); + this._close('user'); +}; + +EventSourceReceiver.prototype._cleanup = function() { + debug('cleanup'); + var es = this.es; + if (es) { + es.onmessage = es.onerror = null; + es.close(); + this.es = null; + } +}; + +EventSourceReceiver.prototype._close = function(reason) { + debug('close', reason); + var self = this; + // Safari and chrome < 15 crash if we close window before + // waiting for ES cleanup. See: + // https://code.google.com/p/chromium/issues/detail?id=89155 + setTimeout(function() { + self.emit('close', null, reason); + self.removeAllListeners(); + }, 200); +}; + +module.exports = EventSourceReceiver; + +}).call(this,{ env: {} }) + +},{"debug":55,"events":3,"eventsource":18,"inherits":57}],30:[function(require,module,exports){ +(function (process,global){ +'use strict'; + +var inherits = require('inherits') + , iframeUtils = require('../../utils/iframe') + , urlUtils = require('../../utils/url') + , EventEmitter = require('events').EventEmitter + , random = require('../../utils/random') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:receiver:htmlfile'); +} + +function HtmlfileReceiver(url) { + debug(url); + EventEmitter.call(this); + var self = this; + iframeUtils.polluteGlobalNamespace(); + + this.id = 'a' + random.string(6); + url = urlUtils.addQuery(url, 'c=' + decodeURIComponent(iframeUtils.WPrefix + '.' + this.id)); + + debug('using htmlfile', HtmlfileReceiver.htmlfileEnabled); + var constructFunc = HtmlfileReceiver.htmlfileEnabled ? + iframeUtils.createHtmlfile : iframeUtils.createIframe; + + global[iframeUtils.WPrefix][this.id] = { + start: function() { + debug('start'); + self.iframeObj.loaded(); + } + , message: function(data) { + debug('message', data); + self.emit('message', data); + } + , stop: function() { + debug('stop'); + self._cleanup(); + self._close('network'); + } + }; + this.iframeObj = constructFunc(url, function() { + debug('callback'); + self._cleanup(); + self._close('permanent'); + }); +} + +inherits(HtmlfileReceiver, EventEmitter); + +HtmlfileReceiver.prototype.abort = function() { + debug('abort'); + this._cleanup(); + this._close('user'); +}; + +HtmlfileReceiver.prototype._cleanup = function() { + debug('_cleanup'); + if (this.iframeObj) { + this.iframeObj.cleanup(); + this.iframeObj = null; + } + delete global[iframeUtils.WPrefix][this.id]; +}; + +HtmlfileReceiver.prototype._close = function(reason) { + debug('_close', reason); + this.emit('close', null, reason); + this.removeAllListeners(); +}; + +HtmlfileReceiver.htmlfileEnabled = false; + +// obfuscate to avoid firewalls +var axo = ['Active'].concat('Object').join('X'); +if (axo in global) { + try { + HtmlfileReceiver.htmlfileEnabled = !!new global[axo]('htmlfile'); + } catch (x) { + // intentionally empty + } +} + +HtmlfileReceiver.enabled = HtmlfileReceiver.htmlfileEnabled || iframeUtils.iframeEnabled; + +module.exports = HtmlfileReceiver; + +}).call(this,{ env: {} },typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{"../../utils/iframe":47,"../../utils/random":50,"../../utils/url":52,"debug":55,"events":3,"inherits":57}],31:[function(require,module,exports){ +(function (process,global){ +'use strict'; + +var utils = require('../../utils/iframe') + , random = require('../../utils/random') + , browser = require('../../utils/browser') + , urlUtils = require('../../utils/url') + , inherits = require('inherits') + , EventEmitter = require('events').EventEmitter + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:receiver:jsonp'); +} + +function JsonpReceiver(url) { + debug(url); + var self = this; + EventEmitter.call(this); + + utils.polluteGlobalNamespace(); + + this.id = 'a' + random.string(6); + var urlWithId = urlUtils.addQuery(url, 'c=' + encodeURIComponent(utils.WPrefix + '.' + this.id)); + + global[utils.WPrefix][this.id] = this._callback.bind(this); + this._createScript(urlWithId); + + // Fallback mostly for Konqueror - stupid timer, 35 seconds shall be plenty. + this.timeoutId = setTimeout(function() { + debug('timeout'); + self._abort(new Error('JSONP script loaded abnormally (timeout)')); + }, JsonpReceiver.timeout); +} + +inherits(JsonpReceiver, EventEmitter); + +JsonpReceiver.prototype.abort = function() { + debug('abort'); + if (global[utils.WPrefix][this.id]) { + var err = new Error('JSONP user aborted read'); + err.code = 1000; + this._abort(err); + } +}; + +JsonpReceiver.timeout = 35000; +JsonpReceiver.scriptErrorTimeout = 1000; + +JsonpReceiver.prototype._callback = function(data) { + debug('_callback', data); + this._cleanup(); + + if (this.aborting) { + return; + } + + if (data) { + debug('message', data); + this.emit('message', data); + } + this.emit('close', null, 'network'); + this.removeAllListeners(); +}; + +JsonpReceiver.prototype._abort = function(err) { + debug('_abort', err); + this._cleanup(); + this.aborting = true; + this.emit('close', err.code, err.message); + this.removeAllListeners(); +}; + +JsonpReceiver.prototype._cleanup = function() { + debug('_cleanup'); + clearTimeout(this.timeoutId); + if (this.script2) { + this.script2.parentNode.removeChild(this.script2); + this.script2 = null; + } + if (this.script) { + var script = this.script; + // Unfortunately, you can't really abort script loading of + // the script. + script.parentNode.removeChild(script); + script.onreadystatechange = script.onerror = + script.onload = script.onclick = null; + this.script = null; + } + delete global[utils.WPrefix][this.id]; +}; + +JsonpReceiver.prototype._scriptError = function() { + debug('_scriptError'); + var self = this; + if (this.errorTimer) { + return; + } + + this.errorTimer = setTimeout(function() { + if (!self.loadedOkay) { + self._abort(new Error('JSONP script loaded abnormally (onerror)')); + } + }, JsonpReceiver.scriptErrorTimeout); +}; + +JsonpReceiver.prototype._createScript = function(url) { + debug('_createScript', url); + var self = this; + var script = this.script = global.document.createElement('script'); + var script2; // Opera synchronous load trick. + + script.id = 'a' + random.string(8); + script.src = url; + script.type = 'text/javascript'; + script.charset = 'UTF-8'; + script.onerror = this._scriptError.bind(this); + script.onload = function() { + debug('onload'); + self._abort(new Error('JSONP script loaded abnormally (onload)')); + }; + + // IE9 fires 'error' event after onreadystatechange or before, in random order. + // Use loadedOkay to determine if actually errored + script.onreadystatechange = function() { + debug('onreadystatechange', script.readyState); + if (/loaded|closed/.test(script.readyState)) { + if (script && script.htmlFor && script.onclick) { + self.loadedOkay = true; + try { + // In IE, actually execute the script. + script.onclick(); + } catch (x) { + // intentionally empty + } + } + if (script) { + self._abort(new Error('JSONP script loaded abnormally (onreadystatechange)')); + } + } + }; + // IE: event/htmlFor/onclick trick. + // One can't rely on proper order for onreadystatechange. In order to + // make sure, set a 'htmlFor' and 'event' properties, so that + // script code will be installed as 'onclick' handler for the + // script object. Later, onreadystatechange, manually execute this + // code. FF and Chrome doesn't work with 'event' and 'htmlFor' + // set. For reference see: + // http://jaubourg.net/2010/07/loading-script-as-onclick-handler-of.html + // Also, read on that about script ordering: + // http://wiki.whatwg.org/wiki/Dynamic_Script_Execution_Order + if (typeof script.async === 'undefined' && global.document.attachEvent) { + // According to mozilla docs, in recent browsers script.async defaults + // to 'true', so we may use it to detect a good browser: + // https://developer.mozilla.org/en/HTML/Element/script + if (!browser.isOpera()) { + // Naively assume we're in IE + try { + script.htmlFor = script.id; + script.event = 'onclick'; + } catch (x) { + // intentionally empty + } + script.async = true; + } else { + // Opera, second sync script hack + script2 = this.script2 = global.document.createElement('script'); + script2.text = "try{var a = document.getElementById('" + script.id + "'); if(a)a.onerror();}catch(x){};"; + script.async = script2.async = false; + } + } + if (typeof script.async !== 'undefined') { + script.async = true; + } + + var head = global.document.getElementsByTagName('head')[0]; + head.insertBefore(script, head.firstChild); + if (script2) { + head.insertBefore(script2, head.firstChild); + } +}; + +module.exports = JsonpReceiver; + +}).call(this,{ env: {} },typeof __webpack_require__.g !== "undefined" ? __webpack_require__.g : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) + +},{"../../utils/browser":44,"../../utils/iframe":47,"../../utils/random":50,"../../utils/url":52,"debug":55,"events":3,"inherits":57}],32:[function(require,module,exports){ +(function (process){ +'use strict'; + +var inherits = require('inherits') + , EventEmitter = require('events').EventEmitter + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:receiver:xhr'); +} + +function XhrReceiver(url, AjaxObject) { + debug(url); + EventEmitter.call(this); + var self = this; + + this.bufferPosition = 0; + + this.xo = new AjaxObject('POST', url, null); + this.xo.on('chunk', this._chunkHandler.bind(this)); + this.xo.once('finish', function(status, text) { + debug('finish', status, text); + self._chunkHandler(status, text); + self.xo = null; + var reason = status === 200 ? 'network' : 'permanent'; + debug('close', reason); + self.emit('close', null, reason); + self._cleanup(); + }); +} + +inherits(XhrReceiver, EventEmitter); + +XhrReceiver.prototype._chunkHandler = function(status, text) { + debug('_chunkHandler', status); + if (status !== 200 || !text) { + return; + } + + for (var idx = -1; ; this.bufferPosition += idx + 1) { + var buf = text.slice(this.bufferPosition); + idx = buf.indexOf('\n'); + if (idx === -1) { + break; + } + var msg = buf.slice(0, idx); + if (msg) { + debug('message', msg); + this.emit('message', msg); + } + } +}; + +XhrReceiver.prototype._cleanup = function() { + debug('_cleanup'); + this.removeAllListeners(); +}; + +XhrReceiver.prototype.abort = function() { + debug('abort'); + if (this.xo) { + this.xo.close(); + debug('close'); + this.emit('close', null, 'user'); + this.xo = null; + } + this._cleanup(); +}; + +module.exports = XhrReceiver; + +}).call(this,{ env: {} }) + +},{"debug":55,"events":3,"inherits":57}],33:[function(require,module,exports){ +(function (process,global){ +'use strict'; + +var random = require('../../utils/random') + , urlUtils = require('../../utils/url') + ; + +var debug = function() {}; +if (process.env.NODE_ENV !== 'production') { + debug = require('debug')('sockjs-client:sender:jsonp'); +} + +var form, area; + +function createIframe(id) { + debug('createIframe', id); + try { + // ie6 dynamic iframes with target="" support (thanks Chris Lambacher) + return global.document.createElement('