I just thought of a useful(?) addition to using this method. There's a samplerInfo node in the Hypershade which has a facingRation value. Connect this to a ramp node and you can effectively color an object depending on how much it is facing the camera. See where I'm getting at? Apply your method and combine it with a B&W…
Well... cool idea, but I cannot figure out when this would be all that useful to be honest. I mean if you made an effort and made a good UV layout already you wouldn't have that much trouble painting directly on the original UV set in a 2D app, unless it consists of many small UV shells (many seams). With this method you…