public void Planed_Distance()
{
Planed plane = new Planed(Vertex3d.UnitZ, 10.0f);
Assert.AreEqual(-10.0f, plane.GetDistance(new Vertex3d(0.0f, 0.0f, 0.0f)));
Assert.AreEqual(0.0f, plane.GetDistance(new Vertex3d(0.0f, 0.0f, 10.0f)));
Assert.AreEqual(+10.0f, plane.GetDistance(new Vertex3d(0.0f, 0.0f, 20.0f)));
}
public void Planed_NegZPlane()
{
Planed plane = new Planed(-Vertex3d.UnitZ, 0.0f);
// Positive half-space
Vertex3d[] pointsPosZ =
{
new Vertex3d(+1.0f, +1.0f, 1.0f),
new Vertex3d(+1.0f, -1.0f, 1.0f),
new Vertex3d(-1.0f, +1.0f, 1.0f),
new Vertex3d(-1.0f, -1.0f, 1.0f),
};
foreach (Vertex3d v in pointsPosZ)
{
Assert.IsTrue(plane.GetDistance(v) < 0.0f);
}
// Negative half-space
Vertex3d[] pointsNegZ =
{
new Vertex3d(+1.0f, +1.0f, -1.0f),
new Vertex3d(+1.0f, -1.0f, -1.0f),
new Vertex3d(-1.0f, +1.0f, -1.0f),
new Vertex3d(-1.0f, -1.0f, -1.0f),
};
foreach (Vertex3d v in pointsNegZ)
{
Assert.IsTrue(plane.GetDistance(v) > 0.0f);
}
// On-plane
Vertex3d[] pointsZero =
{
new Vertex3d(+1.0f, +1.0f, 0.0f),
new Vertex3d(+1.0f, -1.0f, 0.0f),
new Vertex3d(-1.0f, +1.0f, 0.0f),
new Vertex3d(-1.0f, -1.0f, 0.0f),
};
foreach (Vertex3d v in pointsZero)
{
Assert.AreEqual(0.0f, plane.GetDistance(v));
}
}
// [Test]
public void Planed_ProjectionFrustum()
{
Matrix4x4d projectionMatrix = Matrix4x4d.Perspective(90.0f, 1.0f, 1.0f, 10.0f);
Matrix4x4d modelMatrix = Matrix4x4d.Identity;
Matrix4x4d frustumMatrix = projectionMatrix * modelMatrix;
Planed planeL = Planed.GetFrustumLeftPlane(frustumMatrix);
Planed planeR = Planed.GetFrustumRightPlane(frustumMatrix);
Planed planeB = Planed.GetFrustumBottomPlane(frustumMatrix);
Planed planeT = Planed.GetFrustumTopPlane(frustumMatrix);
Planed planeN = Planed.GetFrustumNearPlane(frustumMatrix);
Assert.IsTrue(planeN.GetDistance(new Vertex3d(0.0f, 0.0f, -5.0f)) > 0.0f);
Planed planeF = Planed.GetFrustumFarPlane(frustumMatrix);
// Assert.IsTrue(planeF.GetDistance(new Vertex3d(0.0f, 0.0f, -5.0f)) > 0.0f);
}
