/// <summary>
/// mtx is from camera to world space (a point in camera space)
/// inverse is from world to camera space (a point in the world)
/// </summary>
public void GetModelViewMatrix(float frame, out Matrix mtx, out Matrix inverse)
{
CameraAnimationFrame f = GetAnimFrame(frame);
Vector3 r = f.GetRotation(Type);
Vector3 t = f.Pos;
mtx = Matrix.ReverseTransformMatrix(new Vector3(1.0f), r, t);
inverse = Matrix.TransformMatrix(new Vector3(1.0f), r, t);
}
public void SetCamera(ModelPanelViewport v, float frame, bool retainAspect)
{
ViewportProjection proj = (ViewportProjection)(int)ProjectionType;
if (v.ViewType != proj)
{
v.SetProjectionType(proj);
}
GLCamera cam = v.Camera;
CameraAnimationFrame f = GetAnimFrame(frame);
cam.Reset();
cam.Translate(f.Pos);
Vector3 rotate = f.GetRotation(Type);
cam.Rotate(rotate);
float aspect = retainAspect ? cam.Aspect : f.Aspect;
cam.SetProjectionParams(aspect, f.FovY, f.FarZ, f.NearZ);
}