I've been trying forever to find a way to go in reverse, is this possible? You can't take a normal map and convert out right to a bump map. I know that. However, i was thinking that if you have the original mesh, shouldn't one be able to do some of the math in reverse? it wouldn't be perfect but you should be able to extract a decent displacement/bump map if you took the tangents of the original mesh to calculate against the normal map. Or am i out of my depth here?
I've been trying forever to find a way to go in reverse, is this possible? You can't take a normal map and convert out right to a bump map. I know that. However, i was thinking that if you have the original mesh, shouldn't one be able to do some of the math in reverse? it wouldn't be perfect but you should be able to extract a decent displacement/bump map if you took the tangents of the original mesh to calculate against the normal map. Or am i out of my depth here?