Deep Paint 3D, by Right Hemisphere, is "only" $800, and I believe it does what you are aksing about. Still too rich for my blood right now. Painter 3D has one excruciatingly annoying habit that prevents me for using it. When you paint on the 3D model, if you cross a "seam" (like from front to back) Painter bridges the gap on the 2D texture by drawing a streak through it. It overwrites anything in its way. It pretty much the most annoying software feature I've had the mispleasure of coming across in a while. Regards- Lemurtek