Controlling primitives with a texture map

[Vizioen]

Haha! I'm not ashamed to admit that I've started mine!

Ok, I am a little ashamed.

Oh boy, now you're making me want to make a few too. MUST...RESIST...

[Neilg]

Haha! I'm not ashamed to admit that I've started mine!

Ok, I am a little ashamed.

You think I didn't set a little one up too?

Someone should start a megathread in image uploads - all links relating to the technique in the first post and properly open the floodgates.