OpenGL ES (iPhone) Touch Picking

Question

Looking to do classic OpenGL mouse picking in ES. I\'d prefer not to use third party libs, GLU ports and OpenGL name stacks, etc, are out. This pretty much leaves inverse

Answer 1

This post is very hard to follow. I'm attempting to roll my own on iOS 5 with GLKView; I've worked out how to touch detect pixel RGBA as I describe here, now I'm trying to work out how to quickly change the colours of my scene objects to be unique, to accompany this method.