@ Jochen: I know, but I haven't checked that out. It's a different kind of reverse for sure.
@ Inky: well, I have found out that the vdisp maps made by 3D apps are quite complicated and much different from my tries in PS. You can do some simple PS 'vdisp' map, but a real sculpt works much better, and is not hard at all (if you have such an app).
