"Ian Mallett" <geometrian@xxxxxxxxx> wrote:
> There's a selection buffer? I don't know how to use buffers, though I
> think
> I see what you're saying.
Have you read this?
http://www.opengl.org/resources/faq/technical/selection.htm
It talks about several methods, including
- your method, using glReadPixels,
- the selection buffer,
- using "pick rays", which is what I was suggesting
-Dave LeCompte