_GETarProjectionMatrix

Return the projection matrix from a camera parameter.

Prototype :

fun [ObjArCameraParam I I] [[F F F F] [F F F F] [F F F F] [F F F F]]

ObjArCameraParam : a camera parameter object
I : screen width
I : screen height

Return : [[F F F F] [F F F F] [F F F F] [F F F F]] the projection matrix or nil if error.

See also :

Example :