It really does not matter when you do your polypaint. That´s the cool thing about Zbrush. You can work on your UVs and topology whenever you want and use your polypaint on "any" model. Yes, you paint your diffuse on the highest subdiv because polypaint works on the verices, not on the UVs. You can get the polypaint data to…
I typically use xnormal for baking the Polypaint from the high res onto the low res. I was wondering if there was any other 3d software out there that can import the vertex color from a Zbrush objs? I did some Googling and didn't see anything. It seems crazy that ONLY this free software can import the polypaint data....
If you're polypainting on top of the retopo'd mesh, then zbrush will convert it to a texture well enough. If the polypaint is on a completely different mesh, I prefer using xnormal to transfer it.
im having weird problem when using xnormals. i've done some polypaint in zbrush so i wanted to use the polypaint and bake it into a lower poly object. though the thing is the low poly is one entire mesh and the polypainted objects are 2 subtools in zbrush. i use PUV tiles, and export the 2 subtools with their texture from…