public void SetProjectionTest()
{
PerspectiveProjection projection = new PerspectiveProjection();
projection.Set(4, 3, 2, 10);
PerspectiveProjection projection2 = new PerspectiveProjection();
projection2.Set(4, 3);
projection2.Near = 2;
projection2.Far = 10;
Projection projection3 = new PerspectiveProjection
{
Left = -2,
Right = 2,
Bottom = -1.5f,
Top = 1.5f,
Near = 2,
Far = 10,
};
Matrix44F expected = Matrix44F.CreatePerspective(4, 3, 2, 10);
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, projection));
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, projection2));
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, projection3.ToMatrix44F()));
}
public void GetWidthAndHeightTest()
{
float width, height;
PerspectiveViewVolume.GetWidthAndHeight(MathHelper.ToRadians(90), 1, 1, out width, out height);
Assert.IsTrue(Numeric.AreEqual(2, width));
Assert.IsTrue(Numeric.AreEqual(2, height));
PerspectiveViewVolume.GetWidthAndHeight(MathHelper.ToRadians(60), 16.0f / 9.0f, 1, out width, out height);
Assert.IsTrue(Numeric.AreEqual(2.0528009f, width));
Assert.IsTrue(Numeric.AreEqual(1.1547005f, height));
// We are pretty confident that the Projection.CreateProjectionXxx() works.
// Use Projection.CreateProjectionXxx() to test GetWidthAndHeight().
Matrix44F projection = Matrix44F.CreatePerspectiveFieldOfView(MathHelper.ToRadians(60), 16.0f / 9.0f, 1, 10);
Matrix44F projection2 = Matrix44F.CreatePerspective(width, height, 1, 10);
Assert.IsTrue(Matrix44F.AreNumericallyEqual(projection, projection2));
}