public void SetProjectionOffCenterTest()
{
PerspectiveProjection projection = new PerspectiveProjection();
projection.SetOffCenter(0, 4, 1, 4, 2, 10);
PerspectiveProjection projection2 = new PerspectiveProjection();
projection2.SetOffCenter(0, 4, 1, 4);
projection2.Near = 2;
projection2.Far = 10;
Matrix44F expected = Matrix44F.CreatePerspectiveOffCenter(0, 4, 1, 4, 2, 10);
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, projection));
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, projection2.ToMatrix44F()));
}
private void TestClippedProjection()
{
RandomHelper.Random = new Random(1234567);
var p = new PerspectiveProjection();
p.SetOffCenter(-0.1f, 0.2f, -0.1f, 0.1f, 0.1f, 1);
_debugRenderer.DrawViewVolume(p.ViewVolume, new Pose(new Vector3(0, 2, 0)), Color.Red, true, false);
p.NearClipPlane = new Plane(new Vector3(-0.1f, +0.1f, 1).Normalized, -0.4f);
PlaneShape.MeshSize = 2;
_debugRenderer.DrawShape(new PlaneShape(p.NearClipPlane.Value), new Pose(new Vector3(0, 2, 0)), Vector3.One, Color.Green, false, false);
Matrix m = p.ToMatrix();
for (int i = 0; i < 100000; i++)
{
Aabb aabb = p.ViewVolume.GetAabb(Pose.Identity);
aabb.Minimum -= new Vector3(1);
aabb.Maximum += new Vector3(1);
float x = RandomHelper.Random.NextFloat(aabb.Minimum.X, aabb.Maximum.X);
float y = RandomHelper.Random.NextFloat(aabb.Minimum.Y, aabb.Maximum.Y);
float z = RandomHelper.Random.NextFloat(aabb.Minimum.Z, aabb.Maximum.Z);
//if (RandomHelper.Random.NextBool())
// x = 0;
//else
// y = 0;
Vector4 c = m * new Vector4(x, y, z, 1);
c /= c.W;
Color color = Color.Orange;
if (c.X < -1 || c.X > 1 || c.Y < -1 || c.Y > 1 || c.Z < 0 || c.Z > 1)
{
continue;// color = Color.Gray;
}
_debugRenderer.DrawPoint(new Vector3(x, y + 2, z), color, false);
}
}
public void SetProjectionOffCenterTest()
{
PerspectiveProjection projection = new PerspectiveProjection();
projection.SetOffCenter(0, 4, 1, 4, 2, 10);
PerspectiveProjection projection2 = new PerspectiveProjection();
projection2.SetOffCenter(0, 4, 1, 4);
projection2.Near = 2;
projection2.Far = 10;
Matrix44F expected = Matrix44F.CreatePerspectiveOffCenter(0, 4, 1, 4, 2, 10);
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, projection));
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, projection2.ToMatrix44F()));
}