public void TestPerspectiveCullingPlanes()
{
var vf = new ViewingFrustum(FrustumKind.Perspective, 2f, 2f, -1f, -100f);
var cp = vf.CullingPlanes(new Mat4(1f));
Check.AreEqual(0f, cp[0].Distance);
Check.AreEqual((Dir3D.Right + Dir3D.Back).Normalized, cp[0].Normal);
Check.AreEqual(0f, cp[1].Distance);
Check.AreEqual((Dir3D.Left + Dir3D.Back).Normalized, cp[1].Normal);
Check.AreEqual(0f, cp[2].Distance);
Check.AreEqual((Dir3D.Up + Dir3D.Back).Normalized, cp[2].Normal);
Check.AreEqual(0f, cp[3].Distance);
Check.AreEqual((Dir3D.Down + Dir3D.Back).Normalized, cp[3].Normal);
Check.AreEqual(-1, cp[4].Distance);
Check.AreEqual(Dir3D.Back, cp[4].Normal);
Check.AreEqual(100, cp[5].Distance);
Check.AreEqual(Dir3D.Front, cp[5].Normal);
Check.IsFalse(InsideFrustum(cp, new Vec3(-5f, 3f, -3f)));
Check.IsTrue(InsideFrustum(cp, new Vec3(-2, 3f, -3f)));
Check.IsTrue(InsideFrustum(cp, new Vec3(-3, 3f, -3f)));
Check.IsFalse(InsideFrustum(cp, new Vec3(-3, 3f, 0f)));
Check.IsTrue(InsideFrustum(cp, new Vec3(3, 3f, -100f)));
Check.IsFalse(InsideFrustum(cp, new Vec3(3, 3f, -101f)));
}
public void TestOrthographicCullingPlanes()
{
var vf = new ViewingFrustum(FrustumKind.Orthographic, 2f, 2f, -1f, -100f);
var cp = vf.CullingPlanes(new Mat4(1f));
Check.AreEqual(1, cp[0].Distance);
Check.AreEqual(Dir3D.Right, cp[0].Normal);
Check.AreEqual(1, cp[1].Distance);
Check.AreEqual(Dir3D.Left, cp[1].Normal);
Check.AreEqual(1, cp[2].Distance);
Check.AreEqual(Dir3D.Up, cp[2].Normal);
Check.AreEqual(1, cp[3].Distance);
Check.AreEqual(Dir3D.Down, cp[3].Normal);
Check.AreEqual(-1, cp[4].Distance);
Check.AreEqual(Dir3D.Back, cp[4].Normal);
Check.AreEqual(100, cp[5].Distance);
Check.AreEqual(Dir3D.Front, cp[5].Normal);
}