public static void Run() { if (!ranTests) { ranTests = true; Vector3Tests tests = new Vector3Tests(); tests.StaticFunctionTests(); tests.TestGetHashCode(); } }
public void FrustumTransformTests() { { Frustum frustum = new Frustum( new Plane(new Vector3(1, 0, 0), -20), new Plane(new Vector3(-1, 0, 0), -20), new Plane(new Vector3(0, 1, 0), -20), new Plane(new Vector3(0, -1, 0), -20), new Plane(new Vector3(0, 0, 1), -20), new Plane(new Vector3(0, 0, -1), -20)); Vector3Tests.TestFrustumClipLine(frustum, new Vector3(-5, 0, 0), new Vector3(5, 0, 0), true, new Vector3(-5, 0, 0), new Vector3(5, 0, 0)); Vector3Tests.TestFrustumClipLine(frustum, new Vector3(-50, 0, 0), new Vector3(-21, 0, 0), false, null, null); Vector3Tests.TestFrustumClipLine(frustum, new Vector3(-50, 0, 0), new Vector3(-19, 0, 0), true, new Vector3(-20, 0, 0), new Vector3(-19, 0, 0)); // moved right { Frustum movedRightFrustum = Frustum.Transform(frustum, Matrix4X4.CreateTranslation(10, 0, 0)); Assert.IsTrue(movedRightFrustum.Planes[0] == new Plane(new Vector3(1, 0, 0), -10)); Assert.IsTrue(movedRightFrustum.Planes[1] == new Plane(new Vector3(-1, 0, 0), -30)); Assert.IsTrue(movedRightFrustum.Planes[2] == frustum.Planes[2]); Assert.IsTrue(movedRightFrustum.Planes[3] == frustum.Planes[3]); Assert.IsTrue(movedRightFrustum.Planes[4] == frustum.Planes[4]); Assert.IsTrue(movedRightFrustum.Planes[5] == frustum.Planes[5]); Vector3Tests.TestFrustumClipLine(movedRightFrustum, new Vector3(-5, 0, 0), new Vector3(5, 0, 0), true, new Vector3(-5, 0, 0), new Vector3(5, 0, 0)); Vector3Tests.TestFrustumClipLine(movedRightFrustum, new Vector3(-50, 0, 0), new Vector3(-11, 0, 0), false, null, null); Vector3Tests.TestFrustumClipLine(movedRightFrustum, new Vector3(-50, 0, 0), new Vector3(-9, 0, 0), true, new Vector3(-10, 0, 0), new Vector3(-9, 0, 0)); } // rotated right { Frustum movedRightFrustum = Frustum.Transform(frustum, Matrix4X4.CreateRotationY(MathHelper.DegreesToRadians(45))); Matrix4X4 testMatrix = Matrix4X4.CreateRotationY(MathHelper.DegreesToRadians(45)); Plane control = new Plane(Vector3Ex.TransformNormal(frustum.Planes[0].Normal, testMatrix), frustum.Planes[0].DistanceFromOrigin); Assert.IsTrue(movedRightFrustum.Planes[0].Equals(control, .001, .01)); Assert.IsTrue(movedRightFrustum.Planes[1].Equals(new Plane(Vector3Ex.TransformNormal(frustum.Planes[1].Normal, testMatrix), frustum.Planes[1].DistanceFromOrigin))); Assert.IsTrue(movedRightFrustum.Planes[2].Equals(frustum.Planes[2])); Assert.IsTrue(movedRightFrustum.Planes[3].Equals(frustum.Planes[3])); Assert.IsTrue(movedRightFrustum.Planes[4].Equals(new Plane(Vector3Ex.TransformNormal(frustum.Planes[4].Normal, testMatrix), frustum.Planes[4].DistanceFromOrigin))); Assert.IsTrue(movedRightFrustum.Planes[5].Equals(new Plane(Vector3Ex.TransformNormal(frustum.Planes[5].Normal, testMatrix), frustum.Planes[5].DistanceFromOrigin))); } } // rotate about y 180 degrees { Matrix4X4 perspectiveMatrix = Matrix4X4.CreatePerspectiveFieldOfView(MathHelper.Tau / 4, 1, 3, 507); Frustum perspectiveFrustum = Frustum.FrustumFromProjectionMatrix(perspectiveMatrix); Vector3Tests.TestFrustumClipLine(perspectiveFrustum, new Vector3(-10, 0, -5), new Vector3(0, 0, -5), true, new Vector3(-5, 0, -5), new Vector3(0, 0, -5)); Vector3Tests.TestFrustumClipLine(perspectiveFrustum, new Vector3(-50, 0, -5), new Vector3(-21, 0, -5), false, null, null); Vector3Tests.TestFrustumClipLine(perspectiveFrustum, new Vector3(-50, 0, -20), new Vector3(-19, 0, -20), true, new Vector3(-20, 0, -20), new Vector3(-19, 0, -20)); var frustum = Frustum.Transform(perspectiveFrustum, Matrix4X4.CreateRotationY(MathHelper.Tau / 2)); // left Assert.IsTrue(frustum.Planes[0].Normal.Equals(new Vector3(-1, 0, 1).GetNormal(), .0001)); Assert.AreEqual(frustum.Planes[0].DistanceFromOrigin, 0, .0001); // right Assert.IsTrue(frustum.Planes[1].Normal.Equals(new Vector3(1, 0, 1).GetNormal(), .0001)); Assert.AreEqual(frustum.Planes[1].DistanceFromOrigin, 0, .0001); // bottom Assert.IsTrue(frustum.Planes[2].Normal.Equals(new Vector3(0, 1, 1).GetNormal(), .0001)); Assert.AreEqual(frustum.Planes[2].DistanceFromOrigin, 0, .0001); // top Assert.IsTrue(frustum.Planes[3].Normal.Equals(new Vector3(0, -1, 1).GetNormal(), .0001)); Assert.AreEqual(frustum.Planes[3].DistanceFromOrigin, 0, .0001); // near Assert.IsTrue(frustum.Planes[4].Normal.Equals(new Vector3(0, 0, 1), .0001)); Assert.AreEqual(frustum.Planes[4].DistanceFromOrigin, 3, .0001); // far Assert.IsTrue(frustum.Planes[5].Normal.Equals(new Vector3(0, 0, -1), .0001)); Assert.AreEqual(frustum.Planes[5].DistanceFromOrigin, -507, .0001); } // translate 10 down z { double zMove = 10; Matrix4X4 perspectiveMatrix = Matrix4X4.CreatePerspectiveFieldOfView(MathHelper.Tau / 4, 1, 3, 507); Frustum frustum = Frustum.FrustumFromProjectionMatrix(perspectiveMatrix); frustum = Frustum.Transform(frustum, Matrix4X4.CreateTranslation(0, 0, -10)); double expectedPlaneOffset = Math.Sqrt(2 * (zMove / 2) * (zMove / 2)); // left Assert.IsTrue(frustum.Planes[0].Normal.Equals(new Vector3(1, 0, -1).GetNormal(), .0001)); Assert.AreEqual(expectedPlaneOffset, frustum.Planes[0].DistanceFromOrigin, .0001); // right Assert.IsTrue(frustum.Planes[1].Normal.Equals(new Vector3(-1, 0, -1).GetNormal(), .0001)); Assert.AreEqual(expectedPlaneOffset, frustum.Planes[1].DistanceFromOrigin, .0001); // bottom Assert.IsTrue(frustum.Planes[2].Normal.Equals(new Vector3(0, 1, -1).GetNormal(), .0001)); Assert.AreEqual(expectedPlaneOffset, frustum.Planes[2].DistanceFromOrigin, .0001); // top Assert.IsTrue(frustum.Planes[3].Normal.Equals(new Vector3(0, -1, -1).GetNormal(), .0001)); Assert.AreEqual(expectedPlaneOffset, frustum.Planes[3].DistanceFromOrigin, .0001); // near Assert.IsTrue(frustum.Planes[4].Normal.Equals(new Vector3(0, 0, -1), .0001)); Assert.AreEqual(frustum.Planes[4].DistanceFromOrigin, 3 + zMove, .0001); // far Assert.IsTrue(frustum.Planes[5].Normal.Equals(new Vector3(0, 0, 1), .0001)); Assert.AreEqual(frustum.Planes[5].DistanceFromOrigin, -507 - zMove, .0001); } }
public static void Run() { if (!ranTests) { ranTests = true; Vector3Tests tests = new Vector3Tests(); tests.StaticFunctionTests(); tests.TestGetHashCode(); } }