Hi Guys
I recently sculpted a high poly head and used polypaint to texture it in ZBrush and then retopologised it in max and unwrapped it.
So I currently have a high poly sculpt that contains a polypainted texture but with no UV co-ordinates and a low poly model which has UV co-ordinates but no texture map.
I was just wondering is there a way of projecting the texture information onto my low poly model in ZBrush?
Thanks 
Thanks for the quick response, Ive tried the XNormal approach but unfortunately I cant seem to get it working 
I heard that theres a way of doing it by using the ‘Project All’ function. Does anyone know of any tutorials for this?
thanks
You’ll have to check your xnormal settings, make sure it’s set to bake the right kind of map (‘bake highpoly vertex color’) and that the highpoly mesh isn’t set to Ignore Per-Vertex Color. The mesh will also have to be exported to OBJ with polypaint on.
An alternative, older method is to give the highpoly a temporary set of auto UVs (such as GUVs), bake the polypaint to that, and use Xnormal or any other 3d app to bake the texture from the sculpt to the new mesh (in xnormal it would be the base texture to bake field in the highpoly options, along with the bake base texture map type). This particular technique can be seen at http://eat3d.com/free/zbrush_xnormal
Otherwise, you’ll have to subdivide the new mesh in order to have enough verts to handle the polypaint data, and use Project All with RGB on, then create a texture from polypaint if all goes well.