Re: [PyOpenGL-Users] Matices

[Greg E. <gre...@ca...>]

Jason Ward wrote:

> I am wanting to do collision detection.
> In order to do this I need to keep track of the vertices of my polygons.
> So I am storing all the vertices and then I am multiplying them by the 
> modelview matrix, then the product of that I multiply
> by the projection matrix (which is a perspective one).

Wouldn't it be better to do collision detection in world
space rather than screen space? I don't see the need for
a viewing transformation here.

But if you really want to, the easiest way is to use
gluProject.

--
Greg