public void SetProjectionTest()
{
OrthographicProjection projection = new OrthographicProjection();
projection.Set(4, 3, 2, 10);
OrthographicProjection camera2 = new OrthographicProjection();
camera2.Set(4, 3);
camera2.Near = 2;
camera2.Far = 10;
OrthographicProjection camera3 = new OrthographicProjection
{
Left = -2,
Right = 2,
Bottom = -1.5f,
Top = 1.5f,
Near = 2,
Far = 10,
};
Matrix44F expected = Matrix44F.CreateOrthographic(4, 3, 2, 10);
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, projection));
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, camera2));
Assert.IsTrue(Matrix44F.AreNumericallyEqual(expected, camera3.ToMatrix44F()));
}
public void GetBoundsOrthographic()
{
// Get bounds of AABB in clip space. (Used in OcclusionCulling.fx.)
Vector3F cameraPosition = new Vector3F(100, -200, 345);
Vector3F cameraForward = new Vector3F(1, 2, 3).Normalized;
Vector3F cameraUp = new Vector3F(-1, 0.5f, -2).Normalized;
Matrix44F view = Matrix44F.CreateLookAt(cameraPosition, cameraPosition + cameraForward, cameraUp);
Matrix44F proj = Matrix44F.CreateOrthographic(16, 9, -10, 100);
Matrix44F viewProj = proj * view;
Vector3F center = new Vector3F();
Vector3F halfExtent = new Vector3F();
Aabb aabb = new Aabb(center - halfExtent, center + halfExtent);
Aabb aabb0, aabb1;
GetBoundsOrtho(aabb, viewProj, out aabb0);
GetBoundsOrthoSmart(aabb, viewProj, out aabb1);
Assert.IsTrue(Aabb.AreNumericallyEqual(aabb0, aabb1));
center = new Vector3F(-9, 20, -110);
halfExtent = new Vector3F(5, 2, 10);
aabb = new Aabb(center - halfExtent, center + halfExtent);
GetBoundsOrtho(aabb, viewProj, out aabb0);
GetBoundsOrthoSmart(aabb, viewProj, out aabb1);
Assert.IsTrue(Aabb.AreNumericallyEqual(aabb0, aabb1));
}
public void OrthographicTest()
{
Vector3F position = new Vector3F(1, 2, 3);
QuaternionF orientation = QuaternionF.CreateRotation(new Vector3F(2, 3, 6), 0.123f);
CameraInstance cameraInstance = new CameraInstance(new Camera(new OrthographicProjection()))
{
PoseLocal = new Pose(position, orientation),
};
((OrthographicProjection)cameraInstance.Camera.Projection).Set(4, 3, 2, 10);
Matrix44F projection = Matrix44F.CreateOrthographic(4, 3, 2, 10);
Assert.AreEqual(position, cameraInstance.PoseWorld.Position);
Assert.AreEqual(orientation.ToRotationMatrix33(), cameraInstance.PoseWorld.Orientation);
Assert.AreEqual(4, cameraInstance.Camera.Projection.Width);
Assert.AreEqual(3, cameraInstance.Camera.Projection.Height);
Assert.AreEqual(4.0f / 3.0f, cameraInstance.Camera.Projection.AspectRatio);
Assert.AreEqual(2, cameraInstance.Camera.Projection.Near);
Assert.AreEqual(10, cameraInstance.Camera.Projection.Far);
Assert.AreEqual(-2, cameraInstance.Camera.Projection.Left);
Assert.AreEqual(2, cameraInstance.Camera.Projection.Right);
Assert.AreEqual(-1.5f, cameraInstance.Camera.Projection.Bottom);
Assert.AreEqual(1.5f, cameraInstance.Camera.Projection.Top);
Assert.AreEqual(8, cameraInstance.Camera.Projection.Depth);
Assert.IsTrue(Matrix44F.AreNumericallyEqual(projection, cameraInstance.Camera.Projection));
Assert.IsTrue(Matrix44F.AreNumericallyEqual(projection.Inverse, cameraInstance.Camera.Projection.Inverse));
Assert.IsNotNull(cameraInstance.BoundingShape);
// Test shape using collision detection. Remove rotation to simplify test.
cameraInstance.PoseWorld = new Pose(cameraInstance.PoseWorld.Position);
CollisionDetection collisionDetection = new CollisionDetection();
var point = new PointShape();
CollisionObject pointCollisionObject = new CollisionObject(new GeometricObject(point));
CollisionObject cameraCollisionObject = new CollisionObject(cameraInstance);
point.Position = position + new Vector3F(-2, -1.5f, -2);
Assert.IsTrue(collisionDetection.HaveContact(pointCollisionObject, cameraCollisionObject));
point.Position = position + new Vector3F(-2.1f, -1.6f, -1.9f);
Assert.IsFalse(collisionDetection.HaveContact(pointCollisionObject, cameraCollisionObject));
point.Position = position + new Vector3F(2, 1.5f, -10);
Assert.IsTrue(collisionDetection.HaveContact(pointCollisionObject, cameraCollisionObject));
point.Position = position + new Vector3F(2.1f, 1.6f, -10.1f);
Assert.IsFalse(collisionDetection.HaveContact(pointCollisionObject, cameraCollisionObject));
cameraInstance.PoseWorld = new Pose(position, orientation);
((OrthographicProjection)cameraInstance.Camera.Projection).Set(8, 4, 1, 100);
cameraInstance.Camera.Projection.Near = 1;
cameraInstance.Camera.Projection.Far = 100;
projection = Matrix44F.CreateOrthographic(8, 4, 1, 100);
Assert.IsTrue(Matrix44F.AreNumericallyEqual(projection.Inverse, cameraInstance.Camera.Projection.Inverse));
Assert.IsTrue(Matrix44F.AreNumericallyEqual(projection, cameraInstance.Camera.Projection));
// Test shape using collision detection. Remove rotation to simplify test.
cameraInstance.PoseWorld = new Pose(cameraInstance.PoseWorld.Position);
point.Position = position + new Vector3F(-4, -2f, -1);
Assert.IsTrue(collisionDetection.HaveContact(pointCollisionObject, cameraCollisionObject));
point.Position = position + new Vector3F(-4.1f, -1.9f, -0.9f);
Assert.IsFalse(collisionDetection.HaveContact(pointCollisionObject, cameraCollisionObject));
point.Position = position + new Vector3F(4, 2f, -100);
Assert.IsTrue(collisionDetection.HaveContact(pointCollisionObject, cameraCollisionObject));
point.Position = position + new Vector3F(4.1f, 2.1f, -100.1f);
Assert.IsFalse(collisionDetection.HaveContact(pointCollisionObject, cameraCollisionObject));
}