Function perspective

Build a perspective projection matrix with NDC selected at run-time.


						
				Mat4!T perspective(T)
				(
				

				  NDC ndc,
				

				  in T fovx,
				

				  in T aspect,
				

				  in T near,
				

				  in T far
				

				);

Parameters

Name	Description
ndc	the target NDC
fovx	horizontal field of view in degrees
aspect	aspect ratio (width / height)
near	position of the near plane
far	position of the far plane

Returns

a matrix that maps from eye space to clip space. To obtain NDC, the vector must be divided by w.