Why would you want to paint on the lowpoly mesh in Zbrush? Even if you add subdivs- why? Why not painting the highpoly and baking the diffuse in Xnormal to the lowpoly?
No. Only the lowpoly UVs matter, since the baking tool uses the lowpoly UVs to bake the details from the highpoly. This might help. http://wiki.polycount.com/wiki/Texture_Baking
yeah , i forgot that they were his wires .. :) this is the HighPoly Version beveled at the corners .. sorry , i sayed it was lowpoly by mistake . the lowpoly version when i finish this HP version
this is about your lowpoly beeing dirty and having lots of intersecting geo where it isnt needed like pior said, make a cleaner lowpoly and explode only what is needed.
Its for a Top down shooter. FIrst i did a Lowpoly model in 3ds max. After that i just sculpted the rough shape and after that some details. Tomorrow i gonna polish it and build a Lowpoly for the new shape.
One thing that hasn't been clarified is whether or not this question is for highpoly modeling or lowpoly modeling. I jump in because the people above are giving answers for both highpoly and lowpoly.
If you uv map your lowpoly, you can bake the normal from the HP and then texture the lowpoly afterwards. Or you can meshpaint in mudbox or zbrush and bake those down to the maps
Could you use the highpoly to create a lowpoly eg remove all mesh smoothing and remove extra supporting loops? that might be the quickest way to get a good lowpoly of a hardsurface model.