Quads again

I want to make my own code of quads that show different parts of a common surface's texture. That little bit works if I don't use a pivot, but I want to use one for the pixel perfection. I just don't see them if they're on a pivot.

Take a gander at Jim Brown's Image Packer & Sprite Master

I've done that, but it's quite a huge piece, it's hard to see what depends on what...

I agree to a degree. Perhaps we get details from Jim.