public void TestPracticalSplitScheme(int numSplits, float worldNear, float worldFar, params float[] expectedSplits)
{
// Act.
var splits = FrustumUtility
.PracticalSplitScheme(numSplits, worldNear, worldFar)
.ToList();
// Assert.
Assert.That(splits, Has.Count.EqualTo(numSplits + 1));
Assert.That(splits, Is.EquivalentTo(expectedSplits));
}
public void TestGetWorldSpaceFrustumCorners(
float clipSpaceNear, float clipSpaceFar,
float expectedX, float expectedY, float expectedZ)
{
// Arrange.
var view = Matrix.CreateLookAt(new Vector3(0, 0, 10), Vector3.Zero, Vector3.Up);
var projection = Matrix.CreatePerspectiveFieldOfView(
MathHelper.PiOver4, 1.0f, 0.25f, 10000.0f);
var viewProjectionInverse = Matrix.Invert(view * projection);
// Act.
var corners = FrustumUtility.GetWorldSpaceFrustumCorners(
clipSpaceNear, clipSpaceFar, viewProjectionInverse)
.ToList();
// Assert.
Assert.That(corners, Has.Count.EqualTo(8));
AssertVector3RoughlyEqual(corners[0], new Vector3(expectedX, expectedY, expectedZ));
}