Fixed an issue with RTL and world matrix. We were concatenating the mul incorrectly with the world matrix on the CPU in the update loop. The shadow matrix has a transformation which rescales the range from -1,1 to 0,1 and this transformation was messing the world transform. Added the world transform multiplication inside the shader before multiplying with the shadow view matrix

packages/viewer-sandbox/src/Sandbox.ts

@@ -9,8 +9,6 @@ export default class Sandbox {
   private pane: Pane
   private tabs
   private filterControls
-  private steamsFolder
-  private viewsControls = []
   private viewsFolder
   private streams: { [url: string]: Array<unknown> } = {}
 
@@ -110,8 +108,6 @@ export default class Sandbox {
   private removeStreamControls(url: string) {
     this.viewer.unloadObject(url)
     ;(this.streams[url][0] as { dispose: () => void }).dispose()
-    ;(this.streams[url][1] as { dispose: () => void }).dispose()
-    ;(this.streams[url][2] as { dispose: () => void }).dispose()
     delete this.streams[url]
   }
 

packages/viewer/src/modules/SpeckleRenderer.ts

@@ -42,7 +42,7 @@ import {
 } from '../IViewer'
 
 export default class SpeckleRenderer {
-  private readonly SHOW_HELPERS = false
+  private readonly SHOW_HELPERS = true
   private _renderer: WebGLRenderer
   public scene: Scene
   private rootGroup: Group
@@ -181,11 +181,12 @@ export default class SpeckleRenderer {
         rteModelView.multiply(meshBatch.matrixWorld)
         const depthMaterial: SpeckleDepthMaterial =
           meshBatch.customDepthMaterial as SpeckleDepthMaterial
-
-        depthMaterial.userData.uViewer_low.value.copy(viewerLow)
-        depthMaterial.userData.uViewer_high.value.copy(viewerHigh)
-        depthMaterial.userData.rteModelViewMatrix.value.copy(rteModelView)
-        depthMaterial.needsUpdate = true
+        if (depthMaterial) {
+          depthMaterial.userData.uViewer_low.value.copy(viewerLow)
+          depthMaterial.userData.uViewer_high.value.copy(viewerHigh)
+          depthMaterial.userData.rteModelViewMatrix.value.copy(rteModelView)
+          depthMaterial.needsUpdate = true
+        }
 
         const shadowMatrix = new Matrix4()
         shadowMatrix.set(
@@ -209,7 +210,6 @@ export default class SpeckleRenderer {
 
         shadowMatrix.multiply(this.sun.shadow.camera.projectionMatrix)
         shadowMatrix.multiply(rteView)
-        shadowMatrix.multiply(meshBatch.matrixWorld)
         let material: SpeckleStandardMaterial | SpeckleStandardMaterial[] =
           meshBatch.material as SpeckleStandardMaterial | SpeckleStandardMaterial[]
         material = Array.isArray(material) ? material : [material]
@@ -420,6 +420,7 @@ export default class SpeckleRenderer {
   public updateHelpers() {
     if (this.SHOW_HELPERS) {
       ;(this.scene.getObjectByName('CamHelper') as CameraHelper).update()
+      // Thank you prettier, this looks so much better
       ;(this.scene.getObjectByName('SceneBoxHelper') as Box3Helper).box.copy(
         this.sceneBox
       )

packages/viewer/src/modules/materials/shaders/speckle-standard-vert.ts

@@ -97,7 +97,7 @@ void main() {
 	for ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {
         #ifdef USE_RTE
             vec4 shadowPosition = computeRelativePosition(position_low.xyz, position.xyz, uShadowViewer_low, uShadowViewer_high);
-            shadowWorldPosition = shadowPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );
+            shadowWorldPosition = modelMatrix * shadowPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );
             vDirectionalShadowCoord[ i ] = rteShadowMatrix * shadowWorldPosition;
         #else
             shadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );