I would appreciate a little information for trouble shooting UV Master. Cutting handles. I think these have to do with polygroups in general, but I’m not sure why they cause UVMaster trouble. Why does UV master either detect polygroups and cutting handles in models where there are none, or detect more polygroups than are visible whne you click the draw polyframe button? I think it’s seeing mistakes in models that I can’t see but which I need to fix.
in “geometry” click “check mesh integrity” and if needed click “fix mesh”.
make a group visible, mask it off, make everything visible, then click “group masked”. clear mask, make each group invisible one at a time until you get to the last group, then click “group visible”. bring everything back. make the groups you just grouped invisible, then make the next group invisible and click “group visible”.
and so until you finish.
that should make sure you don’t any overlapping or stray verts and you don’t have any loose groups.
you can also try “merge similar groups” and “merge stray groups”.
then unwrap the object with groups turned on and you should only get islands for the groups you have.
I definitely use the mesh integrity and merge similar groups and merge stray groups. I’m bringing in scan data, which are one group, I group them again using group visible. I have a model with one group and UVMaster says it’s anywhere from 3-5 groups. I don’t know why or what UVM is looking at to see this. All I know is that UVM doesn’t like it. I was using dynamesh to give the model some consistency and get rid of triangles, but UVM didn’t like that. THe work around I devised, with help from a friend, was to use zremesher instead, go REALLY low on the polycount and then project, divide, project divide, until I got something I could work with. THEN I polygrouped it and used the polygroup button in UVM. THis is my work around, But my question remains, what was UVM seeing that I couldn’t see when it said my 1 polygroup model had more than one polygroup.
don’t know much about importing scan data, but the concept seems like it could give inconsistent results at times.
have you tried exporting it as a obj and then import the obj? i’d import it into other programs as well, like blender, to just see if they have problems with the data. it may or may not be zbrush.
Does your scan data contain texture (color) information or just the 3D data (point cloud/vertices)?
Hi,
You might try Groups Split in the SubTool menu. With scan data, it’s possible that you have one or two polygons grouped by themselves… you could then just delete the extra subtools and throw the one polygroup that you wanted in UV Master and check to see if it only detects one group at that point.