I’m just switching from mudbox to zbrush and have a bit of a newb question:
I have two models, A and B. The models are identical except A has no UV’s, and B does. I sculpted detail into A.
How can I accurately transfer the detail from A to B?
Thanks for any help!
If I’m visualizing it correctly in my head, you can probably get away with projecting the details from the old mesh onto the new one easily enough. UVs wont be necessary.
You would have to load both models into zbrush as subtools, and subdivide the newer mesh so that it has enough geometry to support the detail you wish to project onto it. It’s optional, but I usually store a morph target at this stage as well (Tool: Morph Target: StoreMT). You can also mask out the newer areas of the mesh as well (so if you have a head and you added horns, mask the horns). Then you can use the Project All feature (Tool: Subtool: Project All) to project the detail from the old mesh onto the new one. Depending on the complexity of the mesh and details you wish to project you may have to adjust the settings a bit, or work your way up in steps (subdivide, project, subdivide, project…)
(The benefit to storing a morph target first is that if there are any projection errors, you can ‘paint’ these areas back towards the stored state by using the Morph Brush)
Hey thank you for the reply. I just edited the original post for clarity, since I hadn’t receive any replies. 
I will give this a shot now and see how it turns out. Thank you very much! I was afraid if I just exported my high poly to Max or Maya, and transferred detail using their tools, it wouldn’t result in an accurate capture.
Thanks again!
Looking at the edit, are the UVs the only difference or has the vertex order been changed in any way (has any vertices been added or removed on the new mesh?). If the meshes are identical and the UVs are the only difference, then you can probably just load up the original mesh in zbrush, then import the new obj. ZBrush/goz should update the UVs automatically and leave all your sculpted detail intact.