Hello.

So, I've been testing the Unity demo and it's simply incredible, yes I'll be buying as soon as I've made at least some money from a game made entirely in Xcode. But until then I need to prove to myself this isn't fad, so Xcode it is. Now, my problem.

Collision detection based upon colour in a non-visible background graphic, is that possible? What I mean by that is, say you have a little car you want to roll along a curvy ground plane, by using PNG images as the source of the detection, black is hard, white is soft etc. I've done the usual searches but come up more confused than when I started. Does anyone have any pointers?

Regards.

E.