bradphelan
2521 lines
109 KiB
C#
2521 lines
109 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System.DoubleNumerics;
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using System.Globalization;
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using System.Runtime.InteropServices;
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using Xunit;
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namespace System.Numerics.Tests
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{
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public class Matrix4x4Tests
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{
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static Matrix4x4 GenerateMatrixNumberFrom1To16()
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{
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Matrix4x4 a = new Matrix4x4();
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a.M11 = 1.0;
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a.M12 = 2.0;
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a.M13 = 3.0;
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a.M14 = 4.0;
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a.M21 = 5.0;
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a.M22 = 6.0;
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a.M23 = 7.0;
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a.M24 = 8.0;
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a.M31 = 9.0;
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a.M32 = 10.0;
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a.M33 = 11.0;
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a.M34 = 12.0;
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a.M41 = 13.0;
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a.M42 = 14.0;
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a.M43 = 15.0;
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a.M44 = 16.0;
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return a;
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}
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static Matrix4x4 GenerateTestMatrix()
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{
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Matrix4x4 m =
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Matrix4x4.CreateRotationX(MathHelper.ToRadians(30.0)) *
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Matrix4x4.CreateRotationY(MathHelper.ToRadians(30.0)) *
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Matrix4x4.CreateRotationZ(MathHelper.ToRadians(30.0));
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m.Translation = new Vector3(111.0, 222.0, 333.0);
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return m;
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}
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// A test for Identity
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[Fact]
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public void Matrix4x4IdentityTest()
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{
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Matrix4x4 val = new Matrix4x4();
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val.M11 = val.M22 = val.M33 = val.M44 = 1.0;
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Assert.True(MathHelper.Equal(val, Matrix4x4.Identity), "Matrix4x4.Indentity was not set correctly.");
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}
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// A test for Determinant
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[Fact]
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public void Matrix4x4DeterminantTest()
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{
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Matrix4x4 target =
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Matrix4x4.CreateRotationX(MathHelper.ToRadians(30.0)) *
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Matrix4x4.CreateRotationY(MathHelper.ToRadians(30.0)) *
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Matrix4x4.CreateRotationZ(MathHelper.ToRadians(30.0));
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double val = 1.0;
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double det = target.GetDeterminant();
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Assert.True(MathHelper.Equal(val, det), "Matrix4x4.Determinant was not set correctly.");
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}
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// A test for Determinant
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// Determinant test |A| = 1 / |A'|
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[Fact]
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public void Matrix4x4DeterminantTest1()
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{
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Matrix4x4 a = new Matrix4x4();
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a.M11 = 5.0;
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a.M12 = 2.0;
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a.M13 = 8.25;
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a.M14 = 1.0;
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a.M21 = 12.0;
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a.M22 = 6.8;
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a.M23 = 2.14;
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a.M24 = 9.6;
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a.M31 = 6.5;
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a.M32 = 1.0;
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a.M33 = 3.14;
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a.M34 = 2.22;
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a.M41 = 0;
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a.M42 = 0.86;
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a.M43 = 4.0;
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a.M44 = 1.0;
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Matrix4x4 i;
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Assert.True(Matrix4x4.Invert(a, out i));
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double detA = a.GetDeterminant();
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double detI = i.GetDeterminant();
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double t = 1.0 / detI;
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// only accurate to 3 precision
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Assert.True(Math.Abs(detA - t) < 1e-3, "Matrix4x4.Determinant was not set correctly.");
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}
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// A test for Invert (Matrix4x4)
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[Fact]
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public void Matrix4x4InvertTest()
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{
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Matrix4x4 mtx =
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Matrix4x4.CreateRotationX(MathHelper.ToRadians(30.0)) *
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Matrix4x4.CreateRotationY(MathHelper.ToRadians(30.0)) *
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Matrix4x4.CreateRotationZ(MathHelper.ToRadians(30.0));
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Matrix4x4 expected = new Matrix4x4();
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expected.M11 = 0.74999994;
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expected.M12 = -0.216506317;
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expected.M13 = 0.62499994;
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expected.M14 = 0.0;
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expected.M21 = 0.433012635;
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expected.M22 = 0.87499994;
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expected.M23 = -0.216506317;
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expected.M24 = 0.0;
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expected.M31 = -0.49999997;
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expected.M32 = 0.433012635;
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expected.M33 = 0.74999994;
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expected.M34 = 0.0;
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expected.M41 = 0.0;
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expected.M42 = 0.0;
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expected.M43 = 0.0;
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expected.M44 = 0.99999994;
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Matrix4x4 actual;
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Assert.True(Matrix4x4.Invert(mtx, out actual));
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Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.Invert did not return the expected value.");
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// Make sure M*M is identity matrix
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Matrix4x4 i = mtx * actual;
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Assert.True(MathHelper.Equal(i, Matrix4x4.Identity), "Matrix4x4.Invert did not return the expected value.");
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}
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// A test for Invert (Matrix4x4)
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[Fact]
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public void Matrix4x4InvertIdentityTest()
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{
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Matrix4x4 mtx = Matrix4x4.Identity;
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Matrix4x4 actual;
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Assert.True(Matrix4x4.Invert(mtx, out actual));
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Assert.True(MathHelper.Equal(actual, Matrix4x4.Identity));
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}
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// A test for Invert (Matrix4x4)
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[Fact]
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public void Matrix4x4InvertTranslationTest()
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{
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Matrix4x4 mtx = Matrix4x4.CreateTranslation(23, 42, 666);
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Matrix4x4 actual;
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Assert.True(Matrix4x4.Invert(mtx, out actual));
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Matrix4x4 i = mtx * actual;
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Assert.True(MathHelper.Equal(i, Matrix4x4.Identity));
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}
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// A test for Invert (Matrix4x4)
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[Fact]
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public void Matrix4x4InvertRotationTest()
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{
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Matrix4x4 mtx = Matrix4x4.CreateFromYawPitchRoll(3, 4, 5);
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Matrix4x4 actual;
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Assert.True(Matrix4x4.Invert(mtx, out actual));
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Matrix4x4 i = mtx * actual;
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Assert.True(MathHelper.Equal(i, Matrix4x4.Identity));
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}
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// A test for Invert (Matrix4x4)
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[Fact]
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public void Matrix4x4InvertScaleTest()
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{
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Matrix4x4 mtx = Matrix4x4.CreateScale(23, 42, -666);
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Matrix4x4 actual;
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Assert.True(Matrix4x4.Invert(mtx, out actual));
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Matrix4x4 i = mtx * actual;
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Assert.True(MathHelper.Equal(i, Matrix4x4.Identity));
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}
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// A test for Invert (Matrix4x4)
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[Fact]
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public void Matrix4x4InvertProjectionTest()
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{
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Matrix4x4 mtx = Matrix4x4.CreatePerspectiveFieldOfView(1, 1.333, 0.1, 666);
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Matrix4x4 actual;
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Assert.True(Matrix4x4.Invert(mtx, out actual));
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Matrix4x4 i = mtx * actual;
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Assert.True(MathHelper.Equal(i, Matrix4x4.Identity));
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}
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// A test for Invert (Matrix4x4)
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[Fact]
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public void Matrix4x4InvertAffineTest()
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{
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Matrix4x4 mtx = Matrix4x4.CreateFromYawPitchRoll(3, 4, 5) *
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Matrix4x4.CreateScale(23, 42, -666) *
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Matrix4x4.CreateTranslation(17, 53, 89);
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Matrix4x4 actual;
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Assert.True(Matrix4x4.Invert(mtx, out actual));
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Matrix4x4 i = mtx * actual;
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Assert.True(MathHelper.Equal(i, Matrix4x4.Identity));
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}
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void DecomposeTest(double yaw, double pitch, double roll, Vector3 expectedTranslation, Vector3 expectedScales)
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{
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Quaternion expectedRotation = Quaternion.CreateFromYawPitchRoll(MathHelper.ToRadians(yaw),
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MathHelper.ToRadians(pitch),
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MathHelper.ToRadians(roll));
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Matrix4x4 m = Matrix4x4.CreateScale(expectedScales) *
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Matrix4x4.CreateFromQuaternion(expectedRotation) *
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Matrix4x4.CreateTranslation(expectedTranslation);
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Vector3 scales;
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Quaternion rotation;
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Vector3 translation;
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bool actualResult = Matrix4x4.Decompose(m, out scales, out rotation, out translation);
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Assert.True(actualResult, "Matrix4x4.Decompose did not return expected value.");
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bool scaleIsZeroOrNegative = expectedScales.X <= 0 ||
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expectedScales.Y <= 0 ||
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expectedScales.Z <= 0;
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if (scaleIsZeroOrNegative)
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{
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Assert.True(MathHelper.Equal(Math.Abs(expectedScales.X), Math.Abs(scales.X)), "Matrix4x4.Decompose did not return expected value.");
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Assert.True(MathHelper.Equal(Math.Abs(expectedScales.Y), Math.Abs(scales.Y)), "Matrix4x4.Decompose did not return expected value.");
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Assert.True(MathHelper.Equal(Math.Abs(expectedScales.Z), Math.Abs(scales.Z)), "Matrix4x4.Decompose did not return expected value.");
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}
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else
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{
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Assert.True(MathHelper.Equal(expectedScales, scales), String.Format("Matrix4x4.Decompose did not return expected value Expected:{0} actual:{1}.", expectedScales, scales));
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Assert.True(MathHelper.EqualRotation(expectedRotation, rotation), String.Format("Matrix4x4.Decompose did not return expected value. Expected:{0} actual:{1}.", expectedRotation, rotation));
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}
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Assert.True(MathHelper.Equal(expectedTranslation, translation), String.Format("Matrix4x4.Decompose did not return expected value. Expected:{0} actual:{1}.", expectedTranslation, translation));
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}
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// Various rotation decompose test.
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[Fact]
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public void Matrix4x4DecomposeTest01()
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{
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DecomposeTest(10.0, 20.0, 30.0, new Vector3(10, 20, 30), new Vector3(2, 3, 4));
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const double step = 35.0;
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for (double yawAngle = -720.0; yawAngle <= 720.0; yawAngle += step)
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{
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for (double pitchAngle = -720.0; pitchAngle <= 720.0; pitchAngle += step)
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{
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for (double rollAngle = -720.0; rollAngle <= 720.0; rollAngle += step)
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{
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DecomposeTest(yawAngle, pitchAngle, rollAngle, new Vector3(10, 20, 30), new Vector3(2, 3, 4));
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}
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}
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}
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}
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// Various scaled matrix decompose test.
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[Fact]
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public void Matrix4x4DecomposeTest02()
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{
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DecomposeTest(10.0, 20.0, 30.0, new Vector3(10, 20, 30), new Vector3(2, 3, 4));
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// Various scales.
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(1, 2, 3));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(1, 3, 2));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(2, 1, 3));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(2, 3, 1));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(3, 1, 2));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(3, 2, 1));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(-2, 1, 1));
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// Small scales.
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(1e-4, 2e-4, 3e-4));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(1e-4, 3e-4, 2e-4));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(2e-4, 1e-4, 3e-4));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(2e-4, 3e-4, 1e-4));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(3e-4, 1e-4, 2e-4));
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DecomposeTest(0, 0, 0, Vector3.Zero, new Vector3(3e-4, 2e-4, 1e-4));
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// Zero scales.
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(0, 0, 0));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(1, 0, 0));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(0, 1, 0));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(0, 0, 1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(0, 1, 1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(1, 0, 1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(1, 1, 0));
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// Negative scales.
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(-1, -1, -1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(1, -1, -1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(-1, 1, -1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(-1, -1, 1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(-1, 1, 1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(1, -1, 1));
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DecomposeTest(0, 0, 0, new Vector3(10, 20, 30), new Vector3(1, 1, -1));
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}
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void DecomposeScaleTest(double sx, double sy, double sz)
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{
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Matrix4x4 m = Matrix4x4.CreateScale(sx, sy, sz);
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Vector3 expectedScales = new Vector3(sx, sy, sz);
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Vector3 scales;
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Quaternion rotation;
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Vector3 translation;
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bool actualResult = Matrix4x4.Decompose(m, out scales, out rotation, out translation);
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Assert.True(actualResult, "Matrix4x4.Decompose did not return expected value.");
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Assert.True(MathHelper.Equal(expectedScales, scales), "Matrix4x4.Decompose did not return expected value.");
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Assert.True(MathHelper.EqualRotation(Quaternion.Identity, rotation), "Matrix4x4.Decompose did not return expected value.");
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Assert.True(MathHelper.Equal(Vector3.Zero, translation), "Matrix4x4.Decompose did not return expected value.");
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}
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// Tiny scale decompose test.
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[Fact]
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public void Matrix4x4DecomposeTest03()
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{
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DecomposeScaleTest(1, 2e-4, 3e-4);
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DecomposeScaleTest(1, 3e-4, 2e-4);
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DecomposeScaleTest(2e-4, 1, 3e-4);
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DecomposeScaleTest(2e-4, 3e-4, 1);
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DecomposeScaleTest(3e-4, 1, 2e-4);
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DecomposeScaleTest(3e-4, 2e-4, 1);
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}
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[Fact]
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public void Matrix4x4DecomposeTest04()
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{
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Vector3 scales;
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Quaternion rotation;
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Vector3 translation;
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Assert.False(Matrix4x4.Decompose(GenerateMatrixNumberFrom1To16(), out scales, out rotation, out translation), "decompose should have failed.");
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Assert.False(Matrix4x4.Decompose(new Matrix4x4(Matrix3x2.CreateSkew(1, 2)), out scales, out rotation, out translation), "decompose should have failed.");
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}
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// Transform by quaternion test
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[Fact]
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public void Matrix4x4TransformTest()
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{
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Matrix4x4 target = GenerateMatrixNumberFrom1To16();
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Matrix4x4 m =
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Matrix4x4.CreateRotationX(MathHelper.ToRadians(30.0)) *
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Matrix4x4.CreateRotationY(MathHelper.ToRadians(30.0)) *
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Matrix4x4.CreateRotationZ(MathHelper.ToRadians(30.0));
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Quaternion q = Quaternion.CreateFromRotationMatrix(m);
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Matrix4x4 expected = target * m;
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Matrix4x4 actual;
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actual = Matrix4x4.Transform(target, q);
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Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.Transform did not return the expected value.");
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}
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// A test for CreateRotationX (double)
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[Fact]
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public void Matrix4x4CreateRotationXTest()
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{
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double radians = MathHelper.ToRadians(30.0);
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Matrix4x4 expected = new Matrix4x4();
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expected.M11 = 1.0;
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expected.M22 = 0.8660254;
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expected.M23 = 0.5;
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expected.M32 = -0.5;
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expected.M33 = 0.8660254;
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expected.M44 = 1.0;
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Matrix4x4 actual;
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actual = Matrix4x4.CreateRotationX(radians);
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Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateRotationX did not return the expected value.");
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}
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// A test for CreateRotationX (double)
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// CreateRotationX of zero degree
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[Fact]
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public void Matrix4x4CreateRotationXTest1()
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{
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double radians = 0;
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Matrix4x4 expected = Matrix4x4.Identity;
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Matrix4x4 actual = Matrix4x4.CreateRotationX(radians);
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Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateRotationX did not return the expected value.");
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}
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// A test for CreateRotationX (double, Vector3)
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[Fact]
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public void Matrix4x4CreateRotationXCenterTest()
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{
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double radians = MathHelper.ToRadians(30.0);
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Vector3 center = new Vector3(23, 42, 66);
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Matrix4x4 rotateAroundZero = Matrix4x4.CreateRotationX(radians, Vector3.Zero);
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Matrix4x4 rotateAroundZeroExpected = Matrix4x4.CreateRotationX(radians);
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Assert.True(MathHelper.Equal(rotateAroundZero, rotateAroundZeroExpected));
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Matrix4x4 rotateAroundCenter = Matrix4x4.CreateRotationX(radians, center);
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Matrix4x4 rotateAroundCenterExpected = Matrix4x4.CreateTranslation(-center) * Matrix4x4.CreateRotationX(radians) * Matrix4x4.CreateTranslation(center);
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Assert.True(MathHelper.Equal(rotateAroundCenter, rotateAroundCenterExpected));
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}
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// A test for CreateRotationY (double)
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[Fact]
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public void Matrix4x4CreateRotationYTest()
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{
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double radians = MathHelper.ToRadians(60.0);
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Matrix4x4 expected = new Matrix4x4();
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expected.M11 = 0.49999997;
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expected.M13 = -0.866025448;
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expected.M22 = 1.0;
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expected.M31 = 0.866025448;
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expected.M33 = 0.49999997;
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expected.M44 = 1.0;
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Matrix4x4 actual;
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actual = Matrix4x4.CreateRotationY(radians);
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Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateRotationY did not return the expected value.");
|
|
}
|
|
|
|
// A test for RotationY (double)
|
|
// CreateRotationY test for negative angle
|
|
[Fact]
|
|
public void Matrix4x4CreateRotationYTest1()
|
|
{
|
|
double radians = MathHelper.ToRadians(-300.0);
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
|
|
expected.M11 = 0.49999997;
|
|
expected.M13 = -0.866025448;
|
|
expected.M22 = 1.0;
|
|
expected.M31 = 0.866025448;
|
|
expected.M33 = 0.49999997;
|
|
expected.M44 = 1.0;
|
|
|
|
Matrix4x4 actual = Matrix4x4.CreateRotationY(radians);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateRotationY did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateRotationY (double, Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateRotationYCenterTest()
|
|
{
|
|
double radians = MathHelper.ToRadians(30.0);
|
|
Vector3 center = new Vector3(23, 42, 66);
|
|
|
|
Matrix4x4 rotateAroundZero = Matrix4x4.CreateRotationY(radians, Vector3.Zero);
|
|
Matrix4x4 rotateAroundZeroExpected = Matrix4x4.CreateRotationY(radians);
|
|
Assert.True(MathHelper.Equal(rotateAroundZero, rotateAroundZeroExpected));
|
|
|
|
Matrix4x4 rotateAroundCenter = Matrix4x4.CreateRotationY(radians, center);
|
|
Matrix4x4 rotateAroundCenterExpected = Matrix4x4.CreateTranslation(-center) * Matrix4x4.CreateRotationY(radians) * Matrix4x4.CreateTranslation(center);
|
|
Assert.True(MathHelper.Equal(rotateAroundCenter, rotateAroundCenterExpected));
|
|
}
|
|
|
|
// A test for CreateFromAxisAngle(Vector3,double)
|
|
[Fact]
|
|
public void Matrix4x4CreateFromAxisAngleTest()
|
|
{
|
|
double radians = MathHelper.ToRadians(-30.0);
|
|
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationX(radians);
|
|
Matrix4x4 actual = Matrix4x4.CreateFromAxisAngle(Vector3.UnitX, radians);
|
|
Assert.True(MathHelper.Equal(expected, actual));
|
|
|
|
expected = Matrix4x4.CreateRotationY(radians);
|
|
actual = Matrix4x4.CreateFromAxisAngle(Vector3.UnitY, radians);
|
|
Assert.True(MathHelper.Equal(expected, actual));
|
|
|
|
expected = Matrix4x4.CreateRotationZ(radians);
|
|
actual = Matrix4x4.CreateFromAxisAngle(Vector3.UnitZ, radians);
|
|
Assert.True(MathHelper.Equal(expected, actual));
|
|
|
|
expected = Matrix4x4.CreateFromQuaternion(Quaternion.CreateFromAxisAngle(Vector3.Normalize(Vector3.One), radians));
|
|
actual = Matrix4x4.CreateFromAxisAngle(Vector3.Normalize(Vector3.One), radians);
|
|
Assert.True(MathHelper.Equal(expected, actual));
|
|
|
|
const int rotCount = 16;
|
|
for (int i = 0; i < rotCount; ++i)
|
|
{
|
|
double latitude = (2.0 * MathHelper.Pi) * ((double)i / (double)rotCount);
|
|
for (int j = 0; j < rotCount; ++j)
|
|
{
|
|
double longitude = -MathHelper.PiOver2 + MathHelper.Pi * ((double)j / (double)rotCount);
|
|
|
|
Matrix4x4 m = Matrix4x4.CreateRotationZ(longitude) * Matrix4x4.CreateRotationY(latitude);
|
|
Vector3 axis = new Vector3(m.M11, m.M12, m.M13);
|
|
for (int k = 0; k < rotCount; ++k)
|
|
{
|
|
double rot = (2.0 * MathHelper.Pi) * ((double)k / (double)rotCount);
|
|
expected = Matrix4x4.CreateFromQuaternion(Quaternion.CreateFromAxisAngle(axis, rot));
|
|
actual = Matrix4x4.CreateFromAxisAngle(axis, rot);
|
|
Assert.True(MathHelper.Equal(expected, actual));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
[Fact]
|
|
public void Matrix4x4CreateFromYawPitchRollTest1()
|
|
{
|
|
double yawAngle = MathHelper.ToRadians(30.0);
|
|
double pitchAngle = MathHelper.ToRadians(40.0);
|
|
double rollAngle = MathHelper.ToRadians(50.0);
|
|
|
|
Matrix4x4 yaw = Matrix4x4.CreateFromAxisAngle(Vector3.UnitY, yawAngle);
|
|
Matrix4x4 pitch = Matrix4x4.CreateFromAxisAngle(Vector3.UnitX, pitchAngle);
|
|
Matrix4x4 roll = Matrix4x4.CreateFromAxisAngle(Vector3.UnitZ, rollAngle);
|
|
|
|
Matrix4x4 expected = roll * pitch * yaw;
|
|
Matrix4x4 actual = Matrix4x4.CreateFromYawPitchRoll(yawAngle, pitchAngle, rollAngle);
|
|
Assert.True(MathHelper.Equal(expected, actual));
|
|
}
|
|
|
|
// Covers more numeric rigions
|
|
[Fact]
|
|
public void Matrix4x4CreateFromYawPitchRollTest2()
|
|
{
|
|
const double step = 35.0;
|
|
|
|
for (double yawAngle = -720.0; yawAngle <= 720.0; yawAngle += step)
|
|
{
|
|
for (double pitchAngle = -720.0; pitchAngle <= 720.0; pitchAngle += step)
|
|
{
|
|
for (double rollAngle = -720.0; rollAngle <= 720.0; rollAngle += step)
|
|
{
|
|
double yawRad = MathHelper.ToRadians(yawAngle);
|
|
double pitchRad = MathHelper.ToRadians(pitchAngle);
|
|
double rollRad = MathHelper.ToRadians(rollAngle);
|
|
Matrix4x4 yaw = Matrix4x4.CreateFromAxisAngle(Vector3.UnitY, yawRad);
|
|
Matrix4x4 pitch = Matrix4x4.CreateFromAxisAngle(Vector3.UnitX, pitchRad);
|
|
Matrix4x4 roll = Matrix4x4.CreateFromAxisAngle(Vector3.UnitZ, rollRad);
|
|
|
|
Matrix4x4 expected = roll * pitch * yaw;
|
|
Matrix4x4 actual = Matrix4x4.CreateFromYawPitchRoll(yawRad, pitchRad, rollRad);
|
|
Assert.True(MathHelper.Equal(expected, actual), String.Format("Yaw:{0} Pitch:{1} Roll:{2}", yawAngle, pitchAngle, rollAngle));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Simple shadow test.
|
|
[Fact]
|
|
public void Matrix4x4CreateShadowTest01()
|
|
{
|
|
Vector3 lightDir = Vector3.UnitY;
|
|
Plane plane = new Plane(Vector3.UnitY, 0);
|
|
|
|
Matrix4x4 expected = Matrix4x4.CreateScale(1, 0, 1);
|
|
|
|
Matrix4x4 actual = Matrix4x4.CreateShadow(lightDir, plane);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateShadow did not returned expected value.");
|
|
}
|
|
|
|
// Various plane projections.
|
|
[Fact]
|
|
public void Matrix4x4CreateShadowTest02()
|
|
{
|
|
// Complex cases.
|
|
Plane[] planes = {
|
|
new Plane( 0, 1, 0, 0 ),
|
|
new Plane( 1, 2, 3, 4 ),
|
|
new Plane( 5, 6, 7, 8 ),
|
|
new Plane(-1,-2,-3,-4 ),
|
|
new Plane(-5,-6,-7,-8 ),
|
|
};
|
|
|
|
Vector3[] points = {
|
|
new Vector3( 1, 2, 3),
|
|
new Vector3( 5, 6, 7),
|
|
new Vector3( 8, 9, 10),
|
|
new Vector3(-1,-2,-3),
|
|
new Vector3(-5,-6,-7),
|
|
new Vector3(-8,-9,-10),
|
|
};
|
|
|
|
foreach (Plane p in planes)
|
|
{
|
|
Plane plane = Plane.Normalize(p);
|
|
|
|
// Try various direction of light directions.
|
|
var testDirections = new Vector3[]
|
|
{
|
|
new Vector3( -1.0, 1.0, 1.0 ),
|
|
new Vector3( 0.0, 1.0, 1.0 ),
|
|
new Vector3( 1.0, 1.0, 1.0 ),
|
|
new Vector3( -1.0, 0.0, 1.0 ),
|
|
new Vector3( 0.0, 0.0, 1.0 ),
|
|
new Vector3( 1.0, 0.0, 1.0 ),
|
|
new Vector3( -1.0,-1.0, 1.0 ),
|
|
new Vector3( 0.0,-1.0, 1.0 ),
|
|
new Vector3( 1.0,-1.0, 1.0 ),
|
|
|
|
new Vector3( -1.0, 1.0, 0.0 ),
|
|
new Vector3( 0.0, 1.0, 0.0 ),
|
|
new Vector3( 1.0, 1.0, 0.0 ),
|
|
new Vector3( -1.0, 0.0, 0.0 ),
|
|
new Vector3( 0.0, 0.0, 0.0 ),
|
|
new Vector3( 1.0, 0.0, 0.0 ),
|
|
new Vector3( -1.0,-1.0, 0.0 ),
|
|
new Vector3( 0.0,-1.0, 0.0 ),
|
|
new Vector3( 1.0,-1.0, 0.0 ),
|
|
|
|
new Vector3( -1.0, 1.0,-1.0 ),
|
|
new Vector3( 0.0, 1.0,-1.0 ),
|
|
new Vector3( 1.0, 1.0,-1.0 ),
|
|
new Vector3( -1.0, 0.0,-1.0 ),
|
|
new Vector3( 0.0, 0.0,-1.0 ),
|
|
new Vector3( 1.0, 0.0,-1.0 ),
|
|
new Vector3( -1.0,-1.0,-1.0 ),
|
|
new Vector3( 0.0,-1.0,-1.0 ),
|
|
new Vector3( 1.0,-1.0,-1.0 ),
|
|
};
|
|
|
|
foreach (Vector3 lightDirInfo in testDirections)
|
|
{
|
|
if (lightDirInfo.Length() < 0.1)
|
|
continue;
|
|
Vector3 lightDir = Vector3.Normalize(lightDirInfo);
|
|
|
|
if (Plane.DotNormal(plane, lightDir) < 0.1)
|
|
continue;
|
|
|
|
Matrix4x4 m = Matrix4x4.CreateShadow(lightDir, plane);
|
|
Vector3 pp = -plane.D * plane.Normal; // origin of the plane.
|
|
|
|
//
|
|
foreach (Vector3 point in points)
|
|
{
|
|
Vector4 v4 = Vector4.Transform(point, m);
|
|
|
|
Vector3 sp = new Vector3(v4.X, v4.Y, v4.Z) / v4.W;
|
|
|
|
// Make sure transformed position is on the plane.
|
|
Vector3 v = sp - pp;
|
|
double d = Vector3.Dot(v, plane.Normal);
|
|
Assert.True(MathHelper.Equal(d, 0), "Matrix4x4.CreateShadow did not provide expected value.");
|
|
|
|
// make sure direction between transformed position and original position are same as light direction.
|
|
if (Vector3.Dot(point - pp, plane.Normal) > 0.0001)
|
|
{
|
|
Vector3 dir = Vector3.Normalize(point - sp);
|
|
Assert.True(MathHelper.Equal(dir, lightDir), "Matrix4x4.CreateShadow did not provide expected value.");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void CreateReflectionTest(Plane plane, Matrix4x4 expected)
|
|
{
|
|
Matrix4x4 actual = Matrix4x4.CreateReflection(plane);
|
|
Assert.True(MathHelper.Equal(actual, expected), "Matrix4x4.CreateReflection did not return expected value.");
|
|
}
|
|
|
|
[Fact]
|
|
public void Matrix4x4CreateReflectionTest01()
|
|
{
|
|
// XY plane.
|
|
CreateReflectionTest(new Plane(Vector3.UnitZ, 0), Matrix4x4.CreateScale(1, 1, -1));
|
|
// XZ plane.
|
|
CreateReflectionTest(new Plane(Vector3.UnitY, 0), Matrix4x4.CreateScale(1, -1, 1));
|
|
// YZ plane.
|
|
CreateReflectionTest(new Plane(Vector3.UnitX, 0), Matrix4x4.CreateScale(-1, 1, 1));
|
|
|
|
// Complex cases.
|
|
Plane[] planes = {
|
|
new Plane( 0, 1, 0, 0 ),
|
|
new Plane( 1, 2, 3, 4 ),
|
|
new Plane( 5, 6, 7, 8 ),
|
|
new Plane(-1,-2,-3,-4 ),
|
|
new Plane(-5,-6,-7,-8 ),
|
|
};
|
|
|
|
Vector3[] points = {
|
|
new Vector3( 1, 2, 3),
|
|
new Vector3( 5, 6, 7),
|
|
new Vector3(-1,-2,-3),
|
|
new Vector3(-5,-6,-7),
|
|
};
|
|
|
|
foreach (Plane p in planes)
|
|
{
|
|
Plane plane = Plane.Normalize(p);
|
|
Matrix4x4 m = Matrix4x4.CreateReflection(plane);
|
|
Vector3 pp = -plane.D * plane.Normal; // Position on the plane.
|
|
|
|
//
|
|
foreach (Vector3 point in points)
|
|
{
|
|
Vector3 rp = Vector3.Transform(point, m);
|
|
|
|
// Manually compute reflection point and compare results.
|
|
Vector3 v = point - pp;
|
|
double d = Vector3.Dot(v, plane.Normal);
|
|
Vector3 vp = point - 2.0 * d * plane.Normal;
|
|
Assert.True(MathHelper.Equal(rp, vp), "Matrix4x4.Reflection did not provide expected value.");
|
|
}
|
|
}
|
|
}
|
|
|
|
// A test for CreateRotationZ (double)
|
|
[Fact]
|
|
public void Matrix4x4CreateRotationZTest()
|
|
{
|
|
double radians = MathHelper.ToRadians(50.0);
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 0.642787635;
|
|
expected.M12 = 0.766044438;
|
|
expected.M21 = -0.766044438;
|
|
expected.M22 = 0.642787635;
|
|
expected.M33 = 1.0;
|
|
expected.M44 = 1.0;
|
|
|
|
Matrix4x4 actual;
|
|
actual = Matrix4x4.CreateRotationZ(radians);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateRotationZ did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateRotationZ (double, Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateRotationZCenterTest()
|
|
{
|
|
double radians = MathHelper.ToRadians(30.0);
|
|
Vector3 center = new Vector3(23, 42, 66);
|
|
|
|
Matrix4x4 rotateAroundZero = Matrix4x4.CreateRotationZ(radians, Vector3.Zero);
|
|
Matrix4x4 rotateAroundZeroExpected = Matrix4x4.CreateRotationZ(radians);
|
|
Assert.True(MathHelper.Equal(rotateAroundZero, rotateAroundZeroExpected));
|
|
|
|
Matrix4x4 rotateAroundCenter = Matrix4x4.CreateRotationZ(radians, center);
|
|
Matrix4x4 rotateAroundCenterExpected = Matrix4x4.CreateTranslation(-center) * Matrix4x4.CreateRotationZ(radians) * Matrix4x4.CreateTranslation(center);
|
|
Assert.True(MathHelper.Equal(rotateAroundCenter, rotateAroundCenterExpected));
|
|
}
|
|
|
|
// A test for CrateLookAt (Vector3, Vector3, Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateLookAtTest()
|
|
{
|
|
Vector3 cameraPosition = new Vector3(10.0, 20.0, 30.0);
|
|
Vector3 cameraTarget = new Vector3(3.0, 2.0, -4.0);
|
|
Vector3 cameraUpVector = new Vector3(0.0, 1.0, 0.0);
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 0.979457;
|
|
expected.M12 = -0.0928267762;
|
|
expected.M13 = 0.179017;
|
|
|
|
expected.M21 = 0.0;
|
|
expected.M22 = 0.8877481;
|
|
expected.M23 = 0.460329473;
|
|
|
|
expected.M31 = -0.201652914;
|
|
expected.M32 = -0.450872928;
|
|
expected.M33 = 0.8695112;
|
|
|
|
expected.M41 = -3.74498272;
|
|
expected.M42 = -3.30050683;
|
|
expected.M43 = -37.0820961;
|
|
expected.M44 = 1.0;
|
|
|
|
Matrix4x4 actual = Matrix4x4.CreateLookAt(cameraPosition, cameraTarget, cameraUpVector);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateLookAt did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateWorld (Vector3, Vector3, Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateWorldTest()
|
|
{
|
|
Vector3 objectPosition = new Vector3(10.0, 20.0, 30.0);
|
|
Vector3 objectForwardDirection = new Vector3(3.0, 2.0, -4.0);
|
|
Vector3 objectUpVector = new Vector3(0.0, 1.0, 0.0);
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 0.799999952;
|
|
expected.M12 = 0;
|
|
expected.M13 = 0.599999964;
|
|
expected.M14 = 0;
|
|
|
|
expected.M21 = -0.2228344;
|
|
expected.M22 = 0.928476632;
|
|
expected.M23 = 0.297112525;
|
|
expected.M24 = 0;
|
|
|
|
expected.M31 = -0.557086;
|
|
expected.M32 = -0.371390671;
|
|
expected.M33 = 0.742781341;
|
|
expected.M34 = 0;
|
|
|
|
expected.M41 = 10;
|
|
expected.M42 = 20;
|
|
expected.M43 = 30;
|
|
expected.M44 = 1.0;
|
|
|
|
Matrix4x4 actual = Matrix4x4.CreateWorld(objectPosition, objectForwardDirection, objectUpVector);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateWorld did not return the expected value.");
|
|
|
|
Assert.Equal(objectPosition, actual.Translation);
|
|
Assert.True(Vector3.Dot(Vector3.Normalize(objectUpVector), new Vector3(actual.M21, actual.M22, actual.M23)) > 0);
|
|
Assert.True(Vector3.Dot(Vector3.Normalize(objectForwardDirection), new Vector3(-actual.M31, -actual.M32, -actual.M33)) > 0.999);
|
|
}
|
|
|
|
// A test for CreateOrtho (double, double, double, double)
|
|
[Fact]
|
|
public void Matrix4x4CreateOrthoTest()
|
|
{
|
|
double width = 100.0;
|
|
double height = 200.0;
|
|
double zNearPlane = 1.5;
|
|
double zFarPlane = 1000.0;
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 0.02;
|
|
expected.M22 = 0.01;
|
|
expected.M33 = -0.00100150227;
|
|
expected.M43 = -0.00150225335;
|
|
expected.M44 = 1.0;
|
|
|
|
Matrix4x4 actual;
|
|
actual = Matrix4x4.CreateOrthographic(width, height, zNearPlane, zFarPlane);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateOrtho did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateOrthoOffCenter (double, double, double, double, double, double)
|
|
[Fact]
|
|
public void Matrix4x4CreateOrthoOffCenterTest()
|
|
{
|
|
double left = 10.0;
|
|
double right = 90.0;
|
|
double bottom = 20.0;
|
|
double top = 180.0;
|
|
double zNearPlane = 1.5;
|
|
double zFarPlane = 1000.0;
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 0.025;
|
|
expected.M22 = 0.0125;
|
|
expected.M33 = -0.00100150227;
|
|
expected.M41 = -1.25;
|
|
expected.M42 = -1.25;
|
|
expected.M43 = -0.00150225335;
|
|
expected.M44 = 1.0;
|
|
|
|
Matrix4x4 actual;
|
|
actual = Matrix4x4.CreateOrthographicOffCenter(left, right, bottom, top, zNearPlane, zFarPlane);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateOrthoOffCenter did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreatePerspective (double, double, double, double)
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveTest()
|
|
{
|
|
double width = 100.0;
|
|
double height = 200.0;
|
|
double zNearPlane = 1.5;
|
|
double zFarPlane = 1000.0;
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 0.03;
|
|
expected.M22 = 0.015;
|
|
expected.M33 = -1.00150228;
|
|
expected.M34 = -1.0;
|
|
expected.M43 = -1.50225341;
|
|
|
|
Matrix4x4 actual;
|
|
actual = Matrix4x4.CreatePerspective(width, height, zNearPlane, zFarPlane);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreatePerspective did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreatePerspective (double, double, double, double)
|
|
// CreatePerspective test where znear = zfar
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveTest1()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
double width = 100.0;
|
|
double height = 200.0;
|
|
double zNearPlane = 0.0;
|
|
double zFarPlane = 0.0;
|
|
|
|
Matrix4x4 actual = Matrix4x4.CreatePerspective(width, height, zNearPlane, zFarPlane);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspective (double, double, double, double)
|
|
// CreatePerspective test where near plane is negative value
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveTest2()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
Matrix4x4 actual = Matrix4x4.CreatePerspective(10, 10, -10, 10);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspective (double, double, double, double)
|
|
// CreatePerspective test where far plane is negative value
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveTest3()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
Matrix4x4 actual = Matrix4x4.CreatePerspective(10, 10, 10, -10);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspective (double, double, double, double)
|
|
// CreatePerspective test where near plane is beyond far plane
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveTest4()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
Matrix4x4 actual = Matrix4x4.CreatePerspective(10, 10, 10, 1);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspectiveFieldOfView (double, double, double, double)
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveFieldOfViewTest()
|
|
{
|
|
double fieldOfView = MathHelper.ToRadians(30.0);
|
|
double aspectRatio = 1280.0 / 720.0;
|
|
double zNearPlane = 1.5;
|
|
double zFarPlane = 1000.0;
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 2.09927845;
|
|
expected.M22 = 3.73205066;
|
|
expected.M33 = -1.00150228;
|
|
expected.M34 = -1.0;
|
|
expected.M43 = -1.50225341;
|
|
Matrix4x4 actual;
|
|
|
|
actual = Matrix4x4.CreatePerspectiveFieldOfView(fieldOfView, aspectRatio, zNearPlane, zFarPlane);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreatePerspectiveFieldOfView did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreatePerspectiveFieldOfView (double, double, double, double)
|
|
// CreatePerspectiveFieldOfView test where filedOfView is negative value.
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveFieldOfViewTest1()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
Matrix4x4 mtx = Matrix4x4.CreatePerspectiveFieldOfView(-1, 1, 1, 10);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspectiveFieldOfView (double, double, double, double)
|
|
// CreatePerspectiveFieldOfView test where filedOfView is more than pi.
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveFieldOfViewTest2()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
Matrix4x4 mtx = Matrix4x4.CreatePerspectiveFieldOfView(MathHelper.Pi + 0.01, 1, 1, 10);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspectiveFieldOfView (double, double, double, double)
|
|
// CreatePerspectiveFieldOfView test where nearPlaneDistance is negative value.
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveFieldOfViewTest3()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
Matrix4x4 mtx = Matrix4x4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, 1, -1, 10);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspectiveFieldOfView (double, double, double, double)
|
|
// CreatePerspectiveFieldOfView test where farPlaneDistance is negative value.
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveFieldOfViewTest4()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
Matrix4x4 mtx = Matrix4x4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, 1, 1, -10);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspectiveFieldOfView (double, double, double, double)
|
|
// CreatePerspectiveFieldOfView test where nearPlaneDistance is larger than farPlaneDistance.
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveFieldOfViewTest5()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
Matrix4x4 mtx = Matrix4x4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, 1, 10, 1);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspectiveOffCenter (double, double, double, double, double, double)
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveOffCenterTest()
|
|
{
|
|
double left = 10.0;
|
|
double right = 90.0;
|
|
double bottom = 20.0;
|
|
double top = 180.0;
|
|
double zNearPlane = 1.5;
|
|
double zFarPlane = 1000.0;
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 0.0375;
|
|
expected.M22 = 0.01875;
|
|
expected.M31 = 1.25;
|
|
expected.M32 = 1.25;
|
|
expected.M33 = -1.00150228;
|
|
expected.M34 = -1.0;
|
|
expected.M43 = -1.50225341;
|
|
|
|
Matrix4x4 actual;
|
|
actual = Matrix4x4.CreatePerspectiveOffCenter(left, right, bottom, top, zNearPlane, zFarPlane);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreatePerspectiveOffCenter did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreatePerspectiveOffCenter (double, double, double, double, double, double)
|
|
// CreatePerspectiveOffCenter test where nearPlaneDistance is negative.
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveOffCenterTest1()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
double left = 10.0, right = 90.0, bottom = 20.0, top = 180.0;
|
|
Matrix4x4 actual = Matrix4x4.CreatePerspectiveOffCenter(left, right, bottom, top, -1, 10);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspectiveOffCenter (double, double, double, double, double, double)
|
|
// CreatePerspectiveOffCenter test where farPlaneDistance is negative.
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveOffCenterTest2()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
double left = 10.0, right = 90.0, bottom = 20.0, top = 180.0;
|
|
Matrix4x4 actual = Matrix4x4.CreatePerspectiveOffCenter(left, right, bottom, top, 1, -10);
|
|
});
|
|
}
|
|
|
|
// A test for CreatePerspectiveOffCenter (double, double, double, double, double, double)
|
|
// CreatePerspectiveOffCenter test where test where nearPlaneDistance is larger than farPlaneDistance.
|
|
[Fact]
|
|
public void Matrix4x4CreatePerspectiveOffCenterTest3()
|
|
{
|
|
Assert.Throws<ArgumentOutOfRangeException>(() =>
|
|
{
|
|
double left = 10.0, right = 90.0, bottom = 20.0, top = 180.0;
|
|
Matrix4x4 actual = Matrix4x4.CreatePerspectiveOffCenter(left, right, bottom, top, 10, 1);
|
|
});
|
|
}
|
|
|
|
// A test for Invert (Matrix4x4)
|
|
// Non invertible matrix - determinant is zero - singular matrix
|
|
[Fact]
|
|
public void Matrix4x4InvertTest1()
|
|
{
|
|
Matrix4x4 a = new Matrix4x4();
|
|
a.M11 = 1.0;
|
|
a.M12 = 2.0;
|
|
a.M13 = 3.0;
|
|
a.M14 = 4.0;
|
|
a.M21 = 5.0;
|
|
a.M22 = 6.0;
|
|
a.M23 = 7.0;
|
|
a.M24 = 8.0;
|
|
a.M31 = 9.0;
|
|
a.M32 = 10.0;
|
|
a.M33 = 11.0;
|
|
a.M34 = 12.0;
|
|
a.M41 = 13.0;
|
|
a.M42 = 14.0;
|
|
a.M43 = 15.0;
|
|
a.M44 = 16.0;
|
|
|
|
double detA = a.GetDeterminant();
|
|
Assert.True(MathHelper.Equal(detA, 0.0), "Matrix4x4.Invert did not return the expected value.");
|
|
|
|
Matrix4x4 actual;
|
|
Assert.False(Matrix4x4.Invert(a, out actual));
|
|
|
|
// all the elements in Actual is NaN
|
|
Assert.True(
|
|
double.IsNaN(actual.M11) && double.IsNaN(actual.M12) && double.IsNaN(actual.M13) && double.IsNaN(actual.M14) &&
|
|
double.IsNaN(actual.M21) && double.IsNaN(actual.M22) && double.IsNaN(actual.M23) && double.IsNaN(actual.M24) &&
|
|
double.IsNaN(actual.M31) && double.IsNaN(actual.M32) && double.IsNaN(actual.M33) && double.IsNaN(actual.M34) &&
|
|
double.IsNaN(actual.M41) && double.IsNaN(actual.M42) && double.IsNaN(actual.M43) && double.IsNaN(actual.M44)
|
|
, "Matrix4x4.Invert did not return the expected value.");
|
|
}
|
|
|
|
// A test for Lerp (Matrix4x4, Matrix4x4, double)
|
|
[Fact]
|
|
public void Matrix4x4LerpTest()
|
|
{
|
|
Matrix4x4 a = new Matrix4x4();
|
|
a.M11 = 11.0;
|
|
a.M12 = 12.0;
|
|
a.M13 = 13.0;
|
|
a.M14 = 14.0;
|
|
a.M21 = 21.0;
|
|
a.M22 = 22.0;
|
|
a.M23 = 23.0;
|
|
a.M24 = 24.0;
|
|
a.M31 = 31.0;
|
|
a.M32 = 32.0;
|
|
a.M33 = 33.0;
|
|
a.M34 = 34.0;
|
|
a.M41 = 41.0;
|
|
a.M42 = 42.0;
|
|
a.M43 = 43.0;
|
|
a.M44 = 44.0;
|
|
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
double t = 0.5;
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = a.M11 + (b.M11 - a.M11) * t;
|
|
expected.M12 = a.M12 + (b.M12 - a.M12) * t;
|
|
expected.M13 = a.M13 + (b.M13 - a.M13) * t;
|
|
expected.M14 = a.M14 + (b.M14 - a.M14) * t;
|
|
|
|
expected.M21 = a.M21 + (b.M21 - a.M21) * t;
|
|
expected.M22 = a.M22 + (b.M22 - a.M22) * t;
|
|
expected.M23 = a.M23 + (b.M23 - a.M23) * t;
|
|
expected.M24 = a.M24 + (b.M24 - a.M24) * t;
|
|
|
|
expected.M31 = a.M31 + (b.M31 - a.M31) * t;
|
|
expected.M32 = a.M32 + (b.M32 - a.M32) * t;
|
|
expected.M33 = a.M33 + (b.M33 - a.M33) * t;
|
|
expected.M34 = a.M34 + (b.M34 - a.M34) * t;
|
|
|
|
expected.M41 = a.M41 + (b.M41 - a.M41) * t;
|
|
expected.M42 = a.M42 + (b.M42 - a.M42) * t;
|
|
expected.M43 = a.M43 + (b.M43 - a.M43) * t;
|
|
expected.M44 = a.M44 + (b.M44 - a.M44) * t;
|
|
|
|
Matrix4x4 actual;
|
|
actual = Matrix4x4.Lerp(a, b, t);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.Lerp did not return the expected value.");
|
|
}
|
|
|
|
// A test for operator - (Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4UnaryNegationTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = -1.0;
|
|
expected.M12 = -2.0;
|
|
expected.M13 = -3.0;
|
|
expected.M14 = -4.0;
|
|
expected.M21 = -5.0;
|
|
expected.M22 = -6.0;
|
|
expected.M23 = -7.0;
|
|
expected.M24 = -8.0;
|
|
expected.M31 = -9.0;
|
|
expected.M32 = -10.0;
|
|
expected.M33 = -11.0;
|
|
expected.M34 = -12.0;
|
|
expected.M41 = -13.0;
|
|
expected.M42 = -14.0;
|
|
expected.M43 = -15.0;
|
|
expected.M44 = -16.0;
|
|
|
|
Matrix4x4 actual = -a;
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.operator - did not return the expected value.");
|
|
}
|
|
|
|
// A test for operator - (Matrix4x4, Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4SubtractionTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
|
|
Matrix4x4 actual = a - b;
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.operator - did not return the expected value.");
|
|
}
|
|
|
|
// A test for operator * (Matrix4x4, Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4MultiplyTest1()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = a.M11 * b.M11 + a.M12 * b.M21 + a.M13 * b.M31 + a.M14 * b.M41;
|
|
expected.M12 = a.M11 * b.M12 + a.M12 * b.M22 + a.M13 * b.M32 + a.M14 * b.M42;
|
|
expected.M13 = a.M11 * b.M13 + a.M12 * b.M23 + a.M13 * b.M33 + a.M14 * b.M43;
|
|
expected.M14 = a.M11 * b.M14 + a.M12 * b.M24 + a.M13 * b.M34 + a.M14 * b.M44;
|
|
|
|
expected.M21 = a.M21 * b.M11 + a.M22 * b.M21 + a.M23 * b.M31 + a.M24 * b.M41;
|
|
expected.M22 = a.M21 * b.M12 + a.M22 * b.M22 + a.M23 * b.M32 + a.M24 * b.M42;
|
|
expected.M23 = a.M21 * b.M13 + a.M22 * b.M23 + a.M23 * b.M33 + a.M24 * b.M43;
|
|
expected.M24 = a.M21 * b.M14 + a.M22 * b.M24 + a.M23 * b.M34 + a.M24 * b.M44;
|
|
|
|
expected.M31 = a.M31 * b.M11 + a.M32 * b.M21 + a.M33 * b.M31 + a.M34 * b.M41;
|
|
expected.M32 = a.M31 * b.M12 + a.M32 * b.M22 + a.M33 * b.M32 + a.M34 * b.M42;
|
|
expected.M33 = a.M31 * b.M13 + a.M32 * b.M23 + a.M33 * b.M33 + a.M34 * b.M43;
|
|
expected.M34 = a.M31 * b.M14 + a.M32 * b.M24 + a.M33 * b.M34 + a.M34 * b.M44;
|
|
|
|
expected.M41 = a.M41 * b.M11 + a.M42 * b.M21 + a.M43 * b.M31 + a.M44 * b.M41;
|
|
expected.M42 = a.M41 * b.M12 + a.M42 * b.M22 + a.M43 * b.M32 + a.M44 * b.M42;
|
|
expected.M43 = a.M41 * b.M13 + a.M42 * b.M23 + a.M43 * b.M33 + a.M44 * b.M43;
|
|
expected.M44 = a.M41 * b.M14 + a.M42 * b.M24 + a.M43 * b.M34 + a.M44 * b.M44;
|
|
|
|
Matrix4x4 actual = a * b;
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.operator * did not return the expected value.");
|
|
}
|
|
|
|
// A test for operator * (Matrix4x4, Matrix4x4)
|
|
// Multiply with identity matrix
|
|
[Fact]
|
|
public void Matrix4x4MultiplyTest4()
|
|
{
|
|
Matrix4x4 a = new Matrix4x4();
|
|
a.M11 = 1.0;
|
|
a.M12 = 2.0;
|
|
a.M13 = 3.0;
|
|
a.M14 = 4.0;
|
|
a.M21 = 5.0;
|
|
a.M22 = -6.0;
|
|
a.M23 = 7.0;
|
|
a.M24 = -8.0;
|
|
a.M31 = 9.0;
|
|
a.M32 = 10.0;
|
|
a.M33 = 11.0;
|
|
a.M34 = 12.0;
|
|
a.M41 = 13.0;
|
|
a.M42 = -14.0;
|
|
a.M43 = 15.0;
|
|
a.M44 = -16.0;
|
|
|
|
Matrix4x4 b = new Matrix4x4();
|
|
b = Matrix4x4.Identity;
|
|
|
|
Matrix4x4 expected = a;
|
|
Matrix4x4 actual = a * b;
|
|
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.operator * did not return the expected value.");
|
|
}
|
|
|
|
// A test for operator + (Matrix4x4, Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4AdditionTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = a.M11 + b.M11;
|
|
expected.M12 = a.M12 + b.M12;
|
|
expected.M13 = a.M13 + b.M13;
|
|
expected.M14 = a.M14 + b.M14;
|
|
expected.M21 = a.M21 + b.M21;
|
|
expected.M22 = a.M22 + b.M22;
|
|
expected.M23 = a.M23 + b.M23;
|
|
expected.M24 = a.M24 + b.M24;
|
|
expected.M31 = a.M31 + b.M31;
|
|
expected.M32 = a.M32 + b.M32;
|
|
expected.M33 = a.M33 + b.M33;
|
|
expected.M34 = a.M34 + b.M34;
|
|
expected.M41 = a.M41 + b.M41;
|
|
expected.M42 = a.M42 + b.M42;
|
|
expected.M43 = a.M43 + b.M43;
|
|
expected.M44 = a.M44 + b.M44;
|
|
|
|
Matrix4x4 actual;
|
|
|
|
actual = a + b;
|
|
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.operator + did not return the expected value.");
|
|
}
|
|
|
|
// A test for Transpose (Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4TransposeTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = a.M11;
|
|
expected.M12 = a.M21;
|
|
expected.M13 = a.M31;
|
|
expected.M14 = a.M41;
|
|
expected.M21 = a.M12;
|
|
expected.M22 = a.M22;
|
|
expected.M23 = a.M32;
|
|
expected.M24 = a.M42;
|
|
expected.M31 = a.M13;
|
|
expected.M32 = a.M23;
|
|
expected.M33 = a.M33;
|
|
expected.M34 = a.M43;
|
|
expected.M41 = a.M14;
|
|
expected.M42 = a.M24;
|
|
expected.M43 = a.M34;
|
|
expected.M44 = a.M44;
|
|
|
|
Matrix4x4 actual = Matrix4x4.Transpose(a);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.Transpose did not return the expected value.");
|
|
}
|
|
|
|
// A test for Transpose (Matrix4x4)
|
|
// Transpose Identity matrix
|
|
[Fact]
|
|
public void Matrix4x4TransposeTest1()
|
|
{
|
|
Matrix4x4 a = Matrix4x4.Identity;
|
|
Matrix4x4 expected = Matrix4x4.Identity;
|
|
|
|
Matrix4x4 actual = Matrix4x4.Transpose(a);
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.Transpose did not return the expected value.");
|
|
}
|
|
|
|
// A test for Matrix4x4 (Quaternion)
|
|
[Fact]
|
|
public void Matrix4x4FromQuaternionTest1()
|
|
{
|
|
Vector3 axis = Vector3.Normalize(new Vector3(1.0, 2.0, 3.0));
|
|
Quaternion q = Quaternion.CreateFromAxisAngle(axis, MathHelper.ToRadians(30.0));
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = 0.875595033;
|
|
expected.M12 = 0.420031041;
|
|
expected.M13 = -0.2385524;
|
|
expected.M14 = 0.0;
|
|
|
|
expected.M21 = -0.38175258;
|
|
expected.M22 = 0.904303849;
|
|
expected.M23 = 0.1910483;
|
|
expected.M24 = 0.0;
|
|
|
|
expected.M31 = 0.295970082;
|
|
expected.M32 = -0.07621294;
|
|
expected.M33 = 0.952151954;
|
|
expected.M34 = 0.0;
|
|
|
|
expected.M41 = 0.0;
|
|
expected.M42 = 0.0;
|
|
expected.M43 = 0.0;
|
|
expected.M44 = 1.0;
|
|
|
|
Matrix4x4 target = Matrix4x4.CreateFromQuaternion(q);
|
|
Assert.True(MathHelper.Equal(expected, target), "Matrix4x4.Matrix4x4(Quaternion) did not return the expected value.");
|
|
}
|
|
|
|
// A test for FromQuaternion (Matrix4x4)
|
|
// Convert X axis rotation matrix
|
|
[Fact]
|
|
public void Matrix4x4FromQuaternionTest2()
|
|
{
|
|
for (double angle = 0.0; angle < 720.0; angle += 10.0)
|
|
{
|
|
Quaternion quat = Quaternion.CreateFromAxisAngle(Vector3.UnitX, angle);
|
|
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationX(angle);
|
|
Matrix4x4 actual = Matrix4x4.CreateFromQuaternion(quat);
|
|
Assert.True(MathHelper.Equal(expected, actual),
|
|
string.Format("Quaternion.FromQuaternion did not return the expected value. angle:{0}",
|
|
angle.ToString()));
|
|
|
|
// make sure convert back to quaternion is same as we passed quaternion.
|
|
Quaternion q2 = Quaternion.CreateFromRotationMatrix(actual);
|
|
Assert.True(MathHelper.EqualRotation(quat, q2),
|
|
string.Format("Quaternion.FromQuaternion did not return the expected value. angle:{0}",
|
|
angle.ToString()));
|
|
}
|
|
}
|
|
|
|
// A test for FromQuaternion (Matrix4x4)
|
|
// Convert Y axis rotation matrix
|
|
[Fact]
|
|
public void Matrix4x4FromQuaternionTest3()
|
|
{
|
|
for (double angle = 0.0; angle < 720.0; angle += 10.0)
|
|
{
|
|
Quaternion quat = Quaternion.CreateFromAxisAngle(Vector3.UnitY, angle);
|
|
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationY(angle);
|
|
Matrix4x4 actual = Matrix4x4.CreateFromQuaternion(quat);
|
|
Assert.True(MathHelper.Equal(expected, actual),
|
|
string.Format("Quaternion.FromQuaternion did not return the expected value. angle:{0}",
|
|
angle.ToString()));
|
|
|
|
// make sure convert back to quaternion is same as we passed quaternion.
|
|
Quaternion q2 = Quaternion.CreateFromRotationMatrix(actual);
|
|
Assert.True(MathHelper.EqualRotation(quat, q2),
|
|
string.Format("Quaternion.FromQuaternion did not return the expected value. angle:{0}",
|
|
angle.ToString()));
|
|
}
|
|
}
|
|
|
|
// A test for FromQuaternion (Matrix4x4)
|
|
// Convert Z axis rotation matrix
|
|
[Fact]
|
|
public void Matrix4x4FromQuaternionTest4()
|
|
{
|
|
for (double angle = 0.0; angle < 720.0; angle += 10.0)
|
|
{
|
|
Quaternion quat = Quaternion.CreateFromAxisAngle(Vector3.UnitZ, angle);
|
|
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationZ(angle);
|
|
Matrix4x4 actual = Matrix4x4.CreateFromQuaternion(quat);
|
|
Assert.True(MathHelper.Equal(expected, actual),
|
|
string.Format("Quaternion.FromQuaternion did not return the expected value. angle:{0}",
|
|
angle.ToString()));
|
|
|
|
// make sure convert back to quaternion is same as we passed quaternion.
|
|
Quaternion q2 = Quaternion.CreateFromRotationMatrix(actual);
|
|
Assert.True(MathHelper.EqualRotation(quat, q2),
|
|
string.Format("Quaternion.FromQuaternion did not return the expected value. angle:{0}",
|
|
angle.ToString()));
|
|
}
|
|
}
|
|
|
|
// A test for FromQuaternion (Matrix4x4)
|
|
// Convert XYZ axis rotation matrix
|
|
[Fact]
|
|
public void Matrix4x4FromQuaternionTest5()
|
|
{
|
|
for (double angle = 0.0; angle < 720.0; angle += 10.0)
|
|
{
|
|
Quaternion quat =
|
|
Quaternion.CreateFromAxisAngle(Vector3.UnitZ, angle) *
|
|
Quaternion.CreateFromAxisAngle(Vector3.UnitY, angle) *
|
|
Quaternion.CreateFromAxisAngle(Vector3.UnitX, angle);
|
|
|
|
Matrix4x4 expected =
|
|
Matrix4x4.CreateRotationX(angle) *
|
|
Matrix4x4.CreateRotationY(angle) *
|
|
Matrix4x4.CreateRotationZ(angle);
|
|
Matrix4x4 actual = Matrix4x4.CreateFromQuaternion(quat);
|
|
Assert.True(MathHelper.Equal(expected, actual),
|
|
string.Format("Quaternion.FromQuaternion did not return the expected value. angle:{0}",
|
|
angle.ToString()));
|
|
|
|
// make sure convert back to quaternion is same as we passed quaternion.
|
|
Quaternion q2 = Quaternion.CreateFromRotationMatrix(actual);
|
|
Assert.True(MathHelper.EqualRotation(quat, q2),
|
|
string.Format("Quaternion.FromQuaternion did not return the expected value. angle:{0}",
|
|
angle.ToString()));
|
|
}
|
|
}
|
|
|
|
// A test for ToString ()
|
|
[Fact]
|
|
public void Matrix4x4ToStringTest()
|
|
{
|
|
Matrix4x4 a = new Matrix4x4();
|
|
a.M11 = 11.0;
|
|
a.M12 = -12.0;
|
|
a.M13 = -13.3;
|
|
a.M14 = 14.4;
|
|
a.M21 = 21.0;
|
|
a.M22 = 22.0;
|
|
a.M23 = 23.0;
|
|
a.M24 = 24.0;
|
|
a.M31 = 31.0;
|
|
a.M32 = 32.0;
|
|
a.M33 = 33.0;
|
|
a.M34 = 34.0;
|
|
a.M41 = 41.0;
|
|
a.M42 = 42.0;
|
|
a.M43 = 43.0;
|
|
a.M44 = 44.0;
|
|
|
|
string expected = String.Format(CultureInfo.CurrentCulture,
|
|
"{{ {{M11:{0} M12:{1} M13:{2} M14:{3}}} {{M21:{4} M22:{5} M23:{6} M24:{7}}} {{M31:{8} M32:{9} M33:{10} M34:{11}}} {{M41:{12} M42:{13} M43:{14} M44:{15}}} }}",
|
|
11.0, -12.0, -13.3, 14.4,
|
|
21.0, 22.0, 23.0, 24.0,
|
|
31.0, 32.0, 33.0, 34.0,
|
|
41.0, 42.0, 43.0, 44.0);
|
|
|
|
string actual = a.ToString();
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for Add (Matrix4x4, Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4AddTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = a.M11 + b.M11;
|
|
expected.M12 = a.M12 + b.M12;
|
|
expected.M13 = a.M13 + b.M13;
|
|
expected.M14 = a.M14 + b.M14;
|
|
expected.M21 = a.M21 + b.M21;
|
|
expected.M22 = a.M22 + b.M22;
|
|
expected.M23 = a.M23 + b.M23;
|
|
expected.M24 = a.M24 + b.M24;
|
|
expected.M31 = a.M31 + b.M31;
|
|
expected.M32 = a.M32 + b.M32;
|
|
expected.M33 = a.M33 + b.M33;
|
|
expected.M34 = a.M34 + b.M34;
|
|
expected.M41 = a.M41 + b.M41;
|
|
expected.M42 = a.M42 + b.M42;
|
|
expected.M43 = a.M43 + b.M43;
|
|
expected.M44 = a.M44 + b.M44;
|
|
|
|
Matrix4x4 actual;
|
|
|
|
actual = Matrix4x4.Add(a, b);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for Equals (object)
|
|
[Fact]
|
|
public void Matrix4x4EqualsTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
// case 1: compare between same values
|
|
object obj = b;
|
|
|
|
bool expected = true;
|
|
bool actual = a.Equals(obj);
|
|
Assert.Equal(expected, actual);
|
|
|
|
// case 2: compare between different values
|
|
b.M11 = 11.0;
|
|
obj = b;
|
|
expected = false;
|
|
actual = a.Equals(obj);
|
|
Assert.Equal(expected, actual);
|
|
|
|
// case 3: compare between different types.
|
|
obj = new Vector4();
|
|
expected = false;
|
|
actual = a.Equals(obj);
|
|
Assert.Equal(expected, actual);
|
|
|
|
// case 3: compare against null.
|
|
obj = null;
|
|
expected = false;
|
|
actual = a.Equals(obj);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for GetHashCode ()
|
|
[Fact]
|
|
public void Matrix4x4GetHashCodeTest()
|
|
{
|
|
Matrix4x4 target = GenerateMatrixNumberFrom1To16();
|
|
int expected = target.M11.GetHashCode() + target.M12.GetHashCode() + target.M13.GetHashCode() + target.M14.GetHashCode() +
|
|
target.M21.GetHashCode() + target.M22.GetHashCode() + target.M23.GetHashCode() + target.M24.GetHashCode() +
|
|
target.M31.GetHashCode() + target.M32.GetHashCode() + target.M33.GetHashCode() + target.M34.GetHashCode() +
|
|
target.M41.GetHashCode() + target.M42.GetHashCode() + target.M43.GetHashCode() + target.M44.GetHashCode();
|
|
int actual;
|
|
|
|
actual = target.GetHashCode();
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for Multiply (Matrix4x4, Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4MultiplyTest3()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = a.M11 * b.M11 + a.M12 * b.M21 + a.M13 * b.M31 + a.M14 * b.M41;
|
|
expected.M12 = a.M11 * b.M12 + a.M12 * b.M22 + a.M13 * b.M32 + a.M14 * b.M42;
|
|
expected.M13 = a.M11 * b.M13 + a.M12 * b.M23 + a.M13 * b.M33 + a.M14 * b.M43;
|
|
expected.M14 = a.M11 * b.M14 + a.M12 * b.M24 + a.M13 * b.M34 + a.M14 * b.M44;
|
|
|
|
expected.M21 = a.M21 * b.M11 + a.M22 * b.M21 + a.M23 * b.M31 + a.M24 * b.M41;
|
|
expected.M22 = a.M21 * b.M12 + a.M22 * b.M22 + a.M23 * b.M32 + a.M24 * b.M42;
|
|
expected.M23 = a.M21 * b.M13 + a.M22 * b.M23 + a.M23 * b.M33 + a.M24 * b.M43;
|
|
expected.M24 = a.M21 * b.M14 + a.M22 * b.M24 + a.M23 * b.M34 + a.M24 * b.M44;
|
|
|
|
expected.M31 = a.M31 * b.M11 + a.M32 * b.M21 + a.M33 * b.M31 + a.M34 * b.M41;
|
|
expected.M32 = a.M31 * b.M12 + a.M32 * b.M22 + a.M33 * b.M32 + a.M34 * b.M42;
|
|
expected.M33 = a.M31 * b.M13 + a.M32 * b.M23 + a.M33 * b.M33 + a.M34 * b.M43;
|
|
expected.M34 = a.M31 * b.M14 + a.M32 * b.M24 + a.M33 * b.M34 + a.M34 * b.M44;
|
|
|
|
expected.M41 = a.M41 * b.M11 + a.M42 * b.M21 + a.M43 * b.M31 + a.M44 * b.M41;
|
|
expected.M42 = a.M41 * b.M12 + a.M42 * b.M22 + a.M43 * b.M32 + a.M44 * b.M42;
|
|
expected.M43 = a.M41 * b.M13 + a.M42 * b.M23 + a.M43 * b.M33 + a.M44 * b.M43;
|
|
expected.M44 = a.M41 * b.M14 + a.M42 * b.M24 + a.M43 * b.M34 + a.M44 * b.M44;
|
|
Matrix4x4 actual;
|
|
actual = Matrix4x4.Multiply(a, b);
|
|
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for Multiply (Matrix4x4, double)
|
|
[Fact]
|
|
public void Matrix4x4MultiplyTest5()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 expected = new Matrix4x4(3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48);
|
|
Matrix4x4 actual = Matrix4x4.Multiply(a, 3);
|
|
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for Multiply (Matrix4x4, double)
|
|
[Fact]
|
|
public void Matrix4x4MultiplyTest6()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 expected = new Matrix4x4(3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48);
|
|
Matrix4x4 actual = a * 3;
|
|
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for Negate (Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4NegateTest()
|
|
{
|
|
Matrix4x4 m = GenerateMatrixNumberFrom1To16();
|
|
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
expected.M11 = -1.0;
|
|
expected.M12 = -2.0;
|
|
expected.M13 = -3.0;
|
|
expected.M14 = -4.0;
|
|
expected.M21 = -5.0;
|
|
expected.M22 = -6.0;
|
|
expected.M23 = -7.0;
|
|
expected.M24 = -8.0;
|
|
expected.M31 = -9.0;
|
|
expected.M32 = -10.0;
|
|
expected.M33 = -11.0;
|
|
expected.M34 = -12.0;
|
|
expected.M41 = -13.0;
|
|
expected.M42 = -14.0;
|
|
expected.M43 = -15.0;
|
|
expected.M44 = -16.0;
|
|
Matrix4x4 actual;
|
|
|
|
actual = Matrix4x4.Negate(m);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for operator != (Matrix4x4, Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4InequalityTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
// case 1: compare between same values
|
|
bool expected = false;
|
|
bool actual = a != b;
|
|
Assert.Equal(expected, actual);
|
|
|
|
// case 2: compare between different values
|
|
b.M11 = 11.0;
|
|
expected = true;
|
|
actual = a != b;
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for operator == (Matrix4x4, Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4EqualityTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
// case 1: compare between same values
|
|
bool expected = true;
|
|
bool actual = a == b;
|
|
Assert.Equal(expected, actual);
|
|
|
|
// case 2: compare between different values
|
|
b.M11 = 11.0;
|
|
expected = false;
|
|
actual = a == b;
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for Subtract (Matrix4x4, Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4SubtractTest()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 expected = new Matrix4x4();
|
|
Matrix4x4 actual;
|
|
|
|
actual = Matrix4x4.Subtract(a, b);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
private void CreateBillboardFact(Vector3 placeDirection, Vector3 cameraUpVector, Matrix4x4 expectedRotation)
|
|
{
|
|
Vector3 cameraPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 objectPosition = cameraPosition + placeDirection * 10.0;
|
|
Matrix4x4 expected = expectedRotation * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateBillboard(objectPosition, cameraPosition, cameraUpVector, new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Forward side of camera on XZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest01()
|
|
{
|
|
// Object placed at Forward of camera. result must be same as 180 degrees rotate along y-axis.
|
|
CreateBillboardFact(new Vector3(0, 0, -1), new Vector3(0, 1, 0), Matrix4x4.CreateRotationY(MathHelper.ToRadians(180.0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Backward side of camera on XZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest02()
|
|
{
|
|
// Object placed at Backward of camera. This result must be same as 0 degrees rotate along y-axis.
|
|
CreateBillboardFact(new Vector3(0, 0, 1), new Vector3(0, 1, 0), Matrix4x4.CreateRotationY(MathHelper.ToRadians(0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Right side of camera on XZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest03()
|
|
{
|
|
// Place object at Right side of camera. This result must be same as 90 degrees rotate along y-axis.
|
|
CreateBillboardFact(new Vector3(1, 0, 0), new Vector3(0, 1, 0), Matrix4x4.CreateRotationY(MathHelper.ToRadians(90)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Left side of camera on XZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest04()
|
|
{
|
|
// Place object at Left side of camera. This result must be same as -90 degrees rotate along y-axis.
|
|
CreateBillboardFact(new Vector3(-1, 0, 0), new Vector3(0, 1, 0), Matrix4x4.CreateRotationY(MathHelper.ToRadians(-90)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Up side of camera on XY-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest05()
|
|
{
|
|
// Place object at Up side of camera. result must be same as 180 degrees rotate along z-axis after 90 degrees rotate along x-axis.
|
|
CreateBillboardFact(new Vector3(0, 1, 0), new Vector3(0, 0, 1),
|
|
Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(180)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Down side of camera on XY-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest06()
|
|
{
|
|
// Place object at Down side of camera. result must be same as 0 degrees rotate along z-axis after 90 degrees rotate along x-axis.
|
|
CreateBillboardFact(new Vector3(0, -1, 0), new Vector3(0, 0, 1),
|
|
Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Right side of camera on XY-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest07()
|
|
{
|
|
// Place object at Right side of camera. result must be same as 90 degrees rotate along z-axis after 90 degrees rotate along x-axis.
|
|
CreateBillboardFact(new Vector3(1, 0, 0), new Vector3(0, 0, 1),
|
|
Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Left side of camera on XY-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest08()
|
|
{
|
|
// Place object at Left side of camera. result must be same as -90 degrees rotate along z-axis after 90 degrees rotate along x-axis.
|
|
CreateBillboardFact(new Vector3(-1, 0, 0), new Vector3(0, 0, 1),
|
|
Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(-90.0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Up side of camera on YZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest09()
|
|
{
|
|
// Place object at Up side of camera. result must be same as -90 degrees rotate along x-axis after 90 degrees rotate along z-axis.
|
|
CreateBillboardFact(new Vector3(0, 1, 0), new Vector3(-1, 0, 0),
|
|
Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationX(MathHelper.ToRadians(-90.0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Down side of camera on YZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest10()
|
|
{
|
|
// Place object at Down side of camera. result must be same as 90 degrees rotate along x-axis after 90 degrees rotate along z-axis.
|
|
CreateBillboardFact(new Vector3(0, -1, 0), new Vector3(-1, 0, 0),
|
|
Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Forward side of camera on YZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest11()
|
|
{
|
|
// Place object at Forward side of camera. result must be same as 180 degrees rotate along x-axis after 90 degrees rotate along z-axis.
|
|
CreateBillboardFact(new Vector3(0, 0, -1), new Vector3(-1, 0, 0),
|
|
Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationX(MathHelper.ToRadians(180.0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Backward side of camera on YZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTest12()
|
|
{
|
|
// Place object at Backward side of camera. result must be same as 0 degrees rotate along x-axis after 90 degrees rotate along z-axis.
|
|
CreateBillboardFact(new Vector3(0, 0, 1), new Vector3(-1, 0, 0),
|
|
Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationX(MathHelper.ToRadians(0.0)));
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Object and camera positions are too close and doesn't pass cameraForwardVector.
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTooCloseTest1()
|
|
{
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 cameraPosition = objectPosition;
|
|
Vector3 cameraUpVector = new Vector3(0, 1, 0);
|
|
|
|
// Doesn't pass camera face direction. CreateBillboard uses new Vector3(0, 0, -1) direction. Result must be same as 180 degrees rotate along y-axis.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationY(MathHelper.ToRadians(180.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateBillboard(objectPosition, cameraPosition, cameraUpVector, new Vector3(0, 0, 1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Object and camera positions are too close and passed cameraForwardVector.
|
|
[Fact]
|
|
public void Matrix4x4CreateBillboardTooCloseTest2()
|
|
{
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 cameraPosition = objectPosition;
|
|
Vector3 cameraUpVector = new Vector3(0, 1, 0);
|
|
|
|
// Passes Vector3.Right as camera face direction. Result must be same as -90 degrees rotate along y-axis.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationY(MathHelper.ToRadians(-90.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateBillboard(objectPosition, cameraPosition, cameraUpVector, new Vector3(1, 0, 0));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateBillboard did not return the expected value.");
|
|
}
|
|
|
|
private void CreateConstrainedBillboardFact(Vector3 placeDirection, Vector3 rotateAxis, Matrix4x4 expectedRotation)
|
|
{
|
|
Vector3 cameraPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 objectPosition = cameraPosition + placeDirection * 10.0;
|
|
Matrix4x4 expected = expectedRotation * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, rotateAxis, new Vector3(0, 0, -1), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
|
|
// When you move camera along rotateAxis, result must be same.
|
|
cameraPosition += rotateAxis * 10.0;
|
|
actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, rotateAxis, new Vector3(0, 0, -1), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
|
|
cameraPosition -= rotateAxis * 30.0;
|
|
actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, rotateAxis, new Vector3(0, 0, -1), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Forward side of camera on XZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest01()
|
|
{
|
|
// Object placed at Forward of camera. result must be same as 180 degrees rotate along y-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(0, 0, -1), new Vector3(0, 1, 0), Matrix4x4.CreateRotationY(MathHelper.ToRadians(180.0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Backward side of camera on XZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest02()
|
|
{
|
|
// Object placed at Backward of camera. This result must be same as 0 degrees rotate along y-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(0, 0, 1), new Vector3(0, 1, 0), Matrix4x4.CreateRotationY(MathHelper.ToRadians(0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Right side of camera on XZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest03()
|
|
{
|
|
// Place object at Right side of camera. This result must be same as 90 degrees rotate along y-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(1, 0, 0), new Vector3(0, 1, 0), Matrix4x4.CreateRotationY(MathHelper.ToRadians(90)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Left side of camera on XZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest04()
|
|
{
|
|
// Place object at Left side of camera. This result must be same as -90 degrees rotate along y-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(-1, 0, 0), new Vector3(0, 1, 0), Matrix4x4.CreateRotationY(MathHelper.ToRadians(-90)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Up side of camera on XY-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest05()
|
|
{
|
|
// Place object at Up side of camera. result must be same as 180 degrees rotate along z-axis after 90 degrees rotate along x-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(0, 1, 0), new Vector3(0, 0, 1),
|
|
Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(180)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Down side of camera on XY-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest06()
|
|
{
|
|
// Place object at Down side of camera. result must be same as 0 degrees rotate along z-axis after 90 degrees rotate along x-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(0, -1, 0), new Vector3(0, 0, 1),
|
|
Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Right side of camera on XY-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest07()
|
|
{
|
|
// Place object at Right side of camera. result must be same as 90 degrees rotate along z-axis after 90 degrees rotate along x-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(1, 0, 0), new Vector3(0, 0, 1),
|
|
Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Left side of camera on XY-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest08()
|
|
{
|
|
// Place object at Left side of camera. result must be same as -90 degrees rotate along z-axis after 90 degrees rotate along x-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(-1, 0, 0), new Vector3(0, 0, 1),
|
|
Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(-90.0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Up side of camera on YZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest09()
|
|
{
|
|
// Place object at Up side of camera. result must be same as -90 degrees rotate along x-axis after 90 degrees rotate along z-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(0, 1, 0), new Vector3(-1, 0, 0),
|
|
Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationX(MathHelper.ToRadians(-90.0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Down side of camera on YZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest10()
|
|
{
|
|
// Place object at Down side of camera. result must be same as 90 degrees rotate along x-axis after 90 degrees rotate along z-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(0, -1, 0), new Vector3(-1, 0, 0),
|
|
Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationX(MathHelper.ToRadians(90.0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Forward side of camera on YZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest11()
|
|
{
|
|
// Place object at Forward side of camera. result must be same as 180 degrees rotate along x-axis after 90 degrees rotate along z-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(0, 0, -1), new Vector3(-1, 0, 0),
|
|
Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationX(MathHelper.ToRadians(180.0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Place object at Backward side of camera on YZ-plane
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTest12()
|
|
{
|
|
// Place object at Backward side of camera. result must be same as 0 degrees rotate along x-axis after 90 degrees rotate along z-axis.
|
|
CreateConstrainedBillboardFact(new Vector3(0, 0, 1), new Vector3(-1, 0, 0),
|
|
Matrix4x4.CreateRotationZ(MathHelper.ToRadians(90.0)) * Matrix4x4.CreateRotationX(MathHelper.ToRadians(0.0)));
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Object and camera positions are too close and doesn't pass cameraForwardVector.
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTooCloseTest1()
|
|
{
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 cameraPosition = objectPosition;
|
|
Vector3 cameraUpVector = new Vector3(0, 1, 0);
|
|
|
|
// Doesn't pass camera face direction. CreateConstrainedBillboard uses new Vector3(0, 0, -1) direction. Result must be same as 180 degrees rotate along y-axis.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationY(MathHelper.ToRadians(180.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, cameraUpVector, new Vector3(0, 0, 1), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Object and camera positions are too close and passed cameraForwardVector.
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardTooCloseTest2()
|
|
{
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 cameraPosition = objectPosition;
|
|
Vector3 cameraUpVector = new Vector3(0, 1, 0);
|
|
|
|
// Passes Vector3.Right as camera face direction. Result must be same as -90 degrees rotate along y-axis.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationY(MathHelper.ToRadians(-90.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, cameraUpVector, new Vector3(1, 0, 0), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Angle between rotateAxis and camera to object vector is too small. And use doesn't passed objectForwardVector parameter.
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardAlongAxisTest1()
|
|
{
|
|
// Place camera at up side of object.
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 rotateAxis = new Vector3(0, 1, 0);
|
|
Vector3 cameraPosition = objectPosition + rotateAxis * 10.0;
|
|
|
|
// In this case, CreateConstrainedBillboard picks new Vector3(0, 0, -1) as object forward vector.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationY(MathHelper.ToRadians(180.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, rotateAxis, new Vector3(0, 0, -1), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Angle between rotateAxis and camera to object vector is too small. And user doesn't passed objectForwardVector parameter.
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardAlongAxisTest2()
|
|
{
|
|
// Place camera at up side of object.
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 rotateAxis = new Vector3(0, 0, -1);
|
|
Vector3 cameraPosition = objectPosition + rotateAxis * 10.0;
|
|
|
|
// In this case, CreateConstrainedBillboard picks new Vector3(1, 0, 0) as object forward vector.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationX(MathHelper.ToRadians(-90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(-90.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, rotateAxis, new Vector3(0, 0, -1), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Angle between rotateAxis and camera to object vector is too small. And user passed correct objectForwardVector parameter.
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardAlongAxisTest3()
|
|
{
|
|
// Place camera at up side of object.
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 rotateAxis = new Vector3(0, 1, 0);
|
|
Vector3 cameraPosition = objectPosition + rotateAxis * 10.0;
|
|
|
|
// User passes correct objectForwardVector.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationY(MathHelper.ToRadians(180.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, rotateAxis, new Vector3(0, 0, -1), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Angle between rotateAxis and camera to object vector is too small. And user passed incorrect objectForwardVector parameter.
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardAlongAxisTest4()
|
|
{
|
|
// Place camera at up side of object.
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 rotateAxis = new Vector3(0, 1, 0);
|
|
Vector3 cameraPosition = objectPosition + rotateAxis * 10.0;
|
|
|
|
// User passes correct objectForwardVector.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationY(MathHelper.ToRadians(180.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, rotateAxis, new Vector3(0, 0, -1), new Vector3(0, 1, 0));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateConstrainedBillboard (Vector3, Vector3, Vector3, Vector3?)
|
|
// Angle between rotateAxis and camera to object vector is too small. And user passed incorrect objectForwardVector parameter.
|
|
[Fact]
|
|
public void Matrix4x4CreateConstrainedBillboardAlongAxisTest5()
|
|
{
|
|
// Place camera at up side of object.
|
|
Vector3 objectPosition = new Vector3(3.0, 4.0, 5.0);
|
|
Vector3 rotateAxis = new Vector3(0, 0, -1);
|
|
Vector3 cameraPosition = objectPosition + rotateAxis * 10.0;
|
|
|
|
// In this case, CreateConstrainedBillboard picks Vector3.Right as object forward vector.
|
|
Matrix4x4 expected = Matrix4x4.CreateRotationX(MathHelper.ToRadians(-90.0)) * Matrix4x4.CreateRotationZ(MathHelper.ToRadians(-90.0)) * Matrix4x4.CreateTranslation(objectPosition);
|
|
Matrix4x4 actual = Matrix4x4.CreateConstrainedBillboard(objectPosition, cameraPosition, rotateAxis, new Vector3(0, 0, -1), new Vector3(0, 0, -1));
|
|
Assert.True(MathHelper.Equal(expected, actual), "Matrix4x4.CreateConstrainedBillboard did not return the expected value.");
|
|
}
|
|
|
|
// A test for CreateScale (Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateScaleTest1()
|
|
{
|
|
Vector3 scales = new Vector3(2.0, 3.0, 4.0);
|
|
Matrix4x4 actual = Matrix4x4.CreateScale(scales);
|
|
Matrix4x4 expected = new Matrix4x4(
|
|
2.0, 0.0, 0.0, 0.0,
|
|
0.0, 3.0, 0.0, 0.0,
|
|
0.0, 0.0, 4.0, 0.0,
|
|
0.0, 0.0, 0.0, 1.0);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for CreateScale (Vector3, Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateScaleCenterTest1()
|
|
{
|
|
Vector3 scale = new Vector3(3, 4, 5);
|
|
Vector3 center = new Vector3(23, 42, 666);
|
|
|
|
Matrix4x4 scaleAroundZero = Matrix4x4.CreateScale(scale, Vector3.Zero);
|
|
Matrix4x4 scaleAroundZeroExpected = Matrix4x4.CreateScale(scale);
|
|
Assert.True(MathHelper.Equal(scaleAroundZero, scaleAroundZeroExpected));
|
|
|
|
Matrix4x4 scaleAroundCenter = Matrix4x4.CreateScale(scale, center);
|
|
Matrix4x4 scaleAroundCenterExpected = Matrix4x4.CreateTranslation(-center) * Matrix4x4.CreateScale(scale) * Matrix4x4.CreateTranslation(center);
|
|
Assert.True(MathHelper.Equal(scaleAroundCenter, scaleAroundCenterExpected));
|
|
}
|
|
|
|
// A test for CreateScale (double)
|
|
[Fact]
|
|
public void Matrix4x4CreateScaleTest2()
|
|
{
|
|
double scale = 2.0;
|
|
Matrix4x4 expected = new Matrix4x4(
|
|
2.0, 0.0, 0.0, 0.0,
|
|
0.0, 2.0, 0.0, 0.0,
|
|
0.0, 0.0, 2.0, 0.0,
|
|
0.0, 0.0, 0.0, 1.0);
|
|
Matrix4x4 actual = Matrix4x4.CreateScale(scale);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for CreateScale (double, Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateScaleCenterTest2()
|
|
{
|
|
double scale = 5;
|
|
Vector3 center = new Vector3(23, 42, 666);
|
|
|
|
Matrix4x4 scaleAroundZero = Matrix4x4.CreateScale(scale, Vector3.Zero);
|
|
Matrix4x4 scaleAroundZeroExpected = Matrix4x4.CreateScale(scale);
|
|
Assert.True(MathHelper.Equal(scaleAroundZero, scaleAroundZeroExpected));
|
|
|
|
Matrix4x4 scaleAroundCenter = Matrix4x4.CreateScale(scale, center);
|
|
Matrix4x4 scaleAroundCenterExpected = Matrix4x4.CreateTranslation(-center) * Matrix4x4.CreateScale(scale) * Matrix4x4.CreateTranslation(center);
|
|
Assert.True(MathHelper.Equal(scaleAroundCenter, scaleAroundCenterExpected));
|
|
}
|
|
|
|
// A test for CreateScale (double, double, double)
|
|
[Fact]
|
|
public void Matrix4x4CreateScaleTest3()
|
|
{
|
|
double xScale = 2.0;
|
|
double yScale = 3.0;
|
|
double zScale = 4.0;
|
|
Matrix4x4 expected = new Matrix4x4(
|
|
2.0, 0.0, 0.0, 0.0,
|
|
0.0, 3.0, 0.0, 0.0,
|
|
0.0, 0.0, 4.0, 0.0,
|
|
0.0, 0.0, 0.0, 1.0);
|
|
Matrix4x4 actual = Matrix4x4.CreateScale(xScale, yScale, zScale);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for CreateScale (double, double, double, Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateScaleCenterTest3()
|
|
{
|
|
Vector3 scale = new Vector3(3, 4, 5);
|
|
Vector3 center = new Vector3(23, 42, 666);
|
|
|
|
Matrix4x4 scaleAroundZero = Matrix4x4.CreateScale(scale.X, scale.Y, scale.Z, Vector3.Zero);
|
|
Matrix4x4 scaleAroundZeroExpected = Matrix4x4.CreateScale(scale.X, scale.Y, scale.Z);
|
|
Assert.True(MathHelper.Equal(scaleAroundZero, scaleAroundZeroExpected));
|
|
|
|
Matrix4x4 scaleAroundCenter = Matrix4x4.CreateScale(scale.X, scale.Y, scale.Z, center);
|
|
Matrix4x4 scaleAroundCenterExpected = Matrix4x4.CreateTranslation(-center) * Matrix4x4.CreateScale(scale.X, scale.Y, scale.Z) * Matrix4x4.CreateTranslation(center);
|
|
Assert.True(MathHelper.Equal(scaleAroundCenter, scaleAroundCenterExpected));
|
|
}
|
|
|
|
// A test for CreateTranslation (Vector3)
|
|
[Fact]
|
|
public void Matrix4x4CreateTranslationTest1()
|
|
{
|
|
Vector3 position = new Vector3(2.0, 3.0, 4.0);
|
|
Matrix4x4 expected = new Matrix4x4(
|
|
1.0, 0.0, 0.0, 0.0,
|
|
0.0, 1.0, 0.0, 0.0,
|
|
0.0, 0.0, 1.0, 0.0,
|
|
2.0, 3.0, 4.0, 1.0);
|
|
|
|
Matrix4x4 actual = Matrix4x4.CreateTranslation(position);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for CreateTranslation (double, double, double)
|
|
[Fact]
|
|
public void Matrix4x4CreateTranslationTest2()
|
|
{
|
|
double xPosition = 2.0;
|
|
double yPosition = 3.0;
|
|
double zPosition = 4.0;
|
|
|
|
Matrix4x4 expected = new Matrix4x4(
|
|
1.0, 0.0, 0.0, 0.0,
|
|
0.0, 1.0, 0.0, 0.0,
|
|
0.0, 0.0, 1.0, 0.0,
|
|
2.0, 3.0, 4.0, 1.0);
|
|
|
|
Matrix4x4 actual = Matrix4x4.CreateTranslation(xPosition, yPosition, zPosition);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for Translation
|
|
[Fact]
|
|
public void Matrix4x4TranslationTest()
|
|
{
|
|
Matrix4x4 a = GenerateTestMatrix();
|
|
Matrix4x4 b = a;
|
|
|
|
// Transformed vector that has same semantics of property must be same.
|
|
Vector3 val = new Vector3(a.M41, a.M42, a.M43);
|
|
Assert.Equal(val, a.Translation);
|
|
|
|
// Set value and get value must be same.
|
|
val = new Vector3(1.0, 2.0, 3.0);
|
|
a.Translation = val;
|
|
Assert.Equal(val, a.Translation);
|
|
|
|
// Make sure it only modifies expected value of matrix.
|
|
Assert.True(
|
|
a.M11 == b.M11 && a.M12 == b.M12 && a.M13 == b.M13 && a.M14 == b.M14 &&
|
|
a.M21 == b.M21 && a.M22 == b.M22 && a.M23 == b.M23 && a.M24 == b.M24 &&
|
|
a.M31 == b.M31 && a.M32 == b.M32 && a.M33 == b.M33 && a.M34 == b.M34 &&
|
|
a.M41 != b.M41 && a.M42 != b.M42 && a.M43 != b.M43 && a.M44 == b.M44);
|
|
}
|
|
|
|
// A test for Equals (Matrix4x4)
|
|
[Fact]
|
|
public void Matrix4x4EqualsTest1()
|
|
{
|
|
Matrix4x4 a = GenerateMatrixNumberFrom1To16();
|
|
Matrix4x4 b = GenerateMatrixNumberFrom1To16();
|
|
|
|
// case 1: compare between same values
|
|
bool expected = true;
|
|
bool actual = a.Equals(b);
|
|
Assert.Equal(expected, actual);
|
|
|
|
// case 2: compare between different values
|
|
b.M11 = 11.0;
|
|
expected = false;
|
|
actual = a.Equals(b);
|
|
Assert.Equal(expected, actual);
|
|
}
|
|
|
|
// A test for IsIdentity
|
|
[Fact]
|
|
public void Matrix4x4IsIdentityTest()
|
|
{
|
|
Assert.True(Matrix4x4.Identity.IsIdentity);
|
|
Assert.True(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1).IsIdentity);
|
|
Assert.False(new Matrix4x4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0).IsIdentity);
|
|
}
|
|
|
|
// A test for Matrix4x4 (Matrix3x2)
|
|
[Fact]
|
|
public void Matrix4x4From3x2Test()
|
|
{
|
|
Matrix3x2 source = new Matrix3x2(1, 2, 3, 4, 5, 6);
|
|
Matrix4x4 result = new Matrix4x4(source);
|
|
|
|
Assert.Equal(source.M11, result.M11);
|
|
Assert.Equal(source.M12, result.M12);
|
|
Assert.Equal(0, result.M13);
|
|
Assert.Equal(0, result.M14);
|
|
|
|
Assert.Equal(source.M21, result.M21);
|
|
Assert.Equal(source.M22, result.M22);
|
|
Assert.Equal(0, result.M23);
|
|
Assert.Equal(0, result.M24);
|
|
|
|
Assert.Equal(0, result.M31);
|
|
Assert.Equal(0, result.M32);
|
|
Assert.Equal(1, result.M33);
|
|
Assert.Equal(0, result.M34);
|
|
|
|
Assert.Equal(source.M31, result.M41);
|
|
Assert.Equal(source.M32, result.M42);
|
|
Assert.Equal(0, result.M43);
|
|
Assert.Equal(1, result.M44);
|
|
}
|
|
|
|
// A test for Matrix4x4 comparison involving NaN values
|
|
[Fact]
|
|
public void Matrix4x4EqualsNanTest()
|
|
{
|
|
Matrix4x4 a = new Matrix4x4(double.NaN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 b = new Matrix4x4(0, double.NaN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 c = new Matrix4x4(0, 0, double.NaN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 d = new Matrix4x4(0, 0, 0, double.NaN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 e = new Matrix4x4(0, 0, 0, 0, double.NaN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 f = new Matrix4x4(0, 0, 0, 0, 0, double.NaN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 g = new Matrix4x4(0, 0, 0, 0, 0, 0, double.NaN, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 h = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, double.NaN, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 i = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, 0, double.NaN, 0, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 j = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, 0, 0, double.NaN, 0, 0, 0, 0, 0, 0);
|
|
Matrix4x4 k = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, double.NaN, 0, 0, 0, 0, 0);
|
|
Matrix4x4 l = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, double.NaN, 0, 0, 0, 0);
|
|
Matrix4x4 m = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, double.NaN, 0, 0, 0);
|
|
Matrix4x4 n = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, double.NaN, 0, 0);
|
|
Matrix4x4 o = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, double.NaN, 0);
|
|
Matrix4x4 p = new Matrix4x4(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, double.NaN);
|
|
|
|
Assert.False(a == new Matrix4x4());
|
|
Assert.False(b == new Matrix4x4());
|
|
Assert.False(c == new Matrix4x4());
|
|
Assert.False(d == new Matrix4x4());
|
|
Assert.False(e == new Matrix4x4());
|
|
Assert.False(f == new Matrix4x4());
|
|
Assert.False(g == new Matrix4x4());
|
|
Assert.False(h == new Matrix4x4());
|
|
Assert.False(i == new Matrix4x4());
|
|
Assert.False(j == new Matrix4x4());
|
|
Assert.False(k == new Matrix4x4());
|
|
Assert.False(l == new Matrix4x4());
|
|
Assert.False(m == new Matrix4x4());
|
|
Assert.False(n == new Matrix4x4());
|
|
Assert.False(o == new Matrix4x4());
|
|
Assert.False(p == new Matrix4x4());
|
|
|
|
Assert.True(a != new Matrix4x4());
|
|
Assert.True(b != new Matrix4x4());
|
|
Assert.True(c != new Matrix4x4());
|
|
Assert.True(d != new Matrix4x4());
|
|
Assert.True(e != new Matrix4x4());
|
|
Assert.True(f != new Matrix4x4());
|
|
Assert.True(g != new Matrix4x4());
|
|
Assert.True(h != new Matrix4x4());
|
|
Assert.True(i != new Matrix4x4());
|
|
Assert.True(j != new Matrix4x4());
|
|
Assert.True(k != new Matrix4x4());
|
|
Assert.True(l != new Matrix4x4());
|
|
Assert.True(m != new Matrix4x4());
|
|
Assert.True(n != new Matrix4x4());
|
|
Assert.True(o != new Matrix4x4());
|
|
Assert.True(p != new Matrix4x4());
|
|
|
|
Assert.False(a.Equals(new Matrix4x4()));
|
|
Assert.False(b.Equals(new Matrix4x4()));
|
|
Assert.False(c.Equals(new Matrix4x4()));
|
|
Assert.False(d.Equals(new Matrix4x4()));
|
|
Assert.False(e.Equals(new Matrix4x4()));
|
|
Assert.False(f.Equals(new Matrix4x4()));
|
|
Assert.False(g.Equals(new Matrix4x4()));
|
|
Assert.False(h.Equals(new Matrix4x4()));
|
|
Assert.False(i.Equals(new Matrix4x4()));
|
|
Assert.False(j.Equals(new Matrix4x4()));
|
|
Assert.False(k.Equals(new Matrix4x4()));
|
|
Assert.False(l.Equals(new Matrix4x4()));
|
|
Assert.False(m.Equals(new Matrix4x4()));
|
|
Assert.False(n.Equals(new Matrix4x4()));
|
|
Assert.False(o.Equals(new Matrix4x4()));
|
|
Assert.False(p.Equals(new Matrix4x4()));
|
|
|
|
Assert.False(a.IsIdentity);
|
|
Assert.False(b.IsIdentity);
|
|
Assert.False(c.IsIdentity);
|
|
Assert.False(d.IsIdentity);
|
|
Assert.False(e.IsIdentity);
|
|
Assert.False(f.IsIdentity);
|
|
Assert.False(g.IsIdentity);
|
|
Assert.False(h.IsIdentity);
|
|
Assert.False(i.IsIdentity);
|
|
Assert.False(j.IsIdentity);
|
|
Assert.False(k.IsIdentity);
|
|
Assert.False(l.IsIdentity);
|
|
Assert.False(m.IsIdentity);
|
|
Assert.False(n.IsIdentity);
|
|
Assert.False(o.IsIdentity);
|
|
Assert.False(p.IsIdentity);
|
|
|
|
// Counterintuitive result - IEEE rules for NaN comparison are weird!
|
|
Assert.False(a.Equals(a));
|
|
Assert.False(b.Equals(b));
|
|
Assert.False(c.Equals(c));
|
|
Assert.False(d.Equals(d));
|
|
Assert.False(e.Equals(e));
|
|
Assert.False(f.Equals(f));
|
|
Assert.False(g.Equals(g));
|
|
Assert.False(h.Equals(h));
|
|
Assert.False(i.Equals(i));
|
|
Assert.False(j.Equals(j));
|
|
Assert.False(k.Equals(k));
|
|
Assert.False(l.Equals(l));
|
|
Assert.False(m.Equals(m));
|
|
Assert.False(n.Equals(n));
|
|
Assert.False(o.Equals(o));
|
|
Assert.False(p.Equals(p));
|
|
}
|
|
|
|
// A test to make sure these types are blittable directly into GPU buffer memory layouts
|
|
[Fact]
|
|
public unsafe void Matrix4x4SizeofTest()
|
|
{
|
|
Assert.Equal(64*2, sizeof(Matrix4x4));
|
|
Assert.Equal(128*2, sizeof(Matrix4x4_2x));
|
|
Assert.Equal(68*2, sizeof(Matrix4x4PlusFloat));
|
|
Assert.Equal(136*2, sizeof(Matrix4x4PlusFloat_2x));
|
|
}
|
|
|
|
[StructLayout(LayoutKind.Sequential)]
|
|
struct Matrix4x4_2x
|
|
{
|
|
private Matrix4x4 _a;
|
|
private Matrix4x4 _b;
|
|
}
|
|
|
|
[StructLayout(LayoutKind.Sequential)]
|
|
struct Matrix4x4PlusFloat
|
|
{
|
|
private Matrix4x4 _v;
|
|
private double _f;
|
|
}
|
|
|
|
[StructLayout(LayoutKind.Sequential)]
|
|
struct Matrix4x4PlusFloat_2x
|
|
{
|
|
private Matrix4x4PlusFloat _a;
|
|
private Matrix4x4PlusFloat _b;
|
|
}
|
|
|
|
// A test to make sure the fields are laid out how we expect
|
|
[Fact]
|
|
public unsafe void Matrix4x4FieldOffsetTest()
|
|
{
|
|
Matrix4x4 mat = new Matrix4x4();
|
|
|
|
double* basePtr = &mat.M11; // Take address of first element
|
|
Matrix4x4* matPtr = &mat; // Take address of whole matrix
|
|
|
|
Assert.Equal(new IntPtr(basePtr), new IntPtr(matPtr));
|
|
|
|
Assert.Equal(new IntPtr(basePtr + 0), new IntPtr(&mat.M11));
|
|
Assert.Equal(new IntPtr(basePtr + 1), new IntPtr(&mat.M12));
|
|
Assert.Equal(new IntPtr(basePtr + 2), new IntPtr(&mat.M13));
|
|
Assert.Equal(new IntPtr(basePtr + 3), new IntPtr(&mat.M14));
|
|
|
|
Assert.Equal(new IntPtr(basePtr + 4), new IntPtr(&mat.M21));
|
|
Assert.Equal(new IntPtr(basePtr + 5), new IntPtr(&mat.M22));
|
|
Assert.Equal(new IntPtr(basePtr + 6), new IntPtr(&mat.M23));
|
|
Assert.Equal(new IntPtr(basePtr + 7), new IntPtr(&mat.M24));
|
|
|
|
Assert.Equal(new IntPtr(basePtr + 8), new IntPtr(&mat.M31));
|
|
Assert.Equal(new IntPtr(basePtr + 9), new IntPtr(&mat.M32));
|
|
Assert.Equal(new IntPtr(basePtr + 10), new IntPtr(&mat.M33));
|
|
Assert.Equal(new IntPtr(basePtr + 11), new IntPtr(&mat.M34));
|
|
|
|
Assert.Equal(new IntPtr(basePtr + 12), new IntPtr(&mat.M41));
|
|
Assert.Equal(new IntPtr(basePtr + 13), new IntPtr(&mat.M42));
|
|
Assert.Equal(new IntPtr(basePtr + 14), new IntPtr(&mat.M43));
|
|
Assert.Equal(new IntPtr(basePtr + 15), new IntPtr(&mat.M44));
|
|
}
|
|
}
|
|
}
|