ZBrushCentral

Problem with UV seams changing when I import an OBJ mesh to replace an existing zBrus

ZBrush Usage Questions
#1

I have finished modelling a character in zBrush 4R4. It was produced using Dynamesh and then retopologised using zSpheres (and the new rigging and topology tabs).

I then used GoZ to send the new mesh to Maya where I cut precise UV seams. I then imported an OBJ of this mesh into zBrush and used UV Master to create UVs. When I exported the mesh to Maya to check it, everything was okay The shells, UVs and seams were all intact and looking good.

I then exported the mesh with UVs as an OBJ file from Maya. I then imported the OBJ into zBrush with the original mesh/tool selected (with all the subdivisions of detail) so that zBrush would update the tool with the new UV data.

It did update the tool but when I used GoZ to export the mesh to Maya so that I could tweak the UVs I found that the process of updating the tool using the OBJ file had caused multiple UV seams to be created (around most polygons in the model) and the UVs were now unusable.

Has anyone had this happen to them and is there a solution? I guess it’s either a corruption in my high-resolution tool, me creating unworkable UV seams or a bug with Maya….

Help…

Thanks
Chris

#2

GoZ to Maya is currently broken because of this issue. This is a known issue that Pixologic has said they are working on but it has been a long time since they last spoke about it.

To get around it, just do the regular .obj export and don’t use goZ, it works fine.

#3

That’s useful to know.