I’ve noticed this behavior post Softimage 2010 releases. Where with the OBJ exports the vertex order is not preserved. It caused us many headaches and countless numbers of redoing UVs. Like you I have nothing reproduce able, however your chances of the bug increases when you mirrored the mesh before. It’s odd — I’ve advised my team to export to .OBJ and reimport before rigging and UVing. It’s a Softimage bug, not ZBrush.
Nowadays, I just import both meshes into Houdini and use the Match topology SOP. Bingo. Andy > On Dec 06, 2014, at 11:28, Sebastien Sterling <[email protected]> > wrote: > > Ive noticed now a couple of times when sending a mesh back into sofrimage, > that > > the uv's get erased or that the vertex order, or ID is different, often this > seems to > > happen regardless of what degree of manipulation i want to effect. I can't > seem to > > find a reocuring reproducible source for this, with the possible exception of > dividing > > the mesh, adding a sub div level, something you can do in mudbox without any > issues. > > Is there some guard, some box I can tick to tell zBrush to preserve vertex > order ? or at the very least will prompt me if a perticular manipulation is > going to break it ? > > > Many thanks and a good weekend to you ! > > - Seb
