I am running continuously in the problem of getting random masks on my subtools. No matter how I create the mask, spots are missed, even though the subtool has one solid polygroup . When I clear the mask and create a new one again I get random spots , this time on other parts of the mesh. The attached screenshot shows the seemingly perfect polygroup, with a mask applied ( Mask polygroup all ) .
The same effect happens with all the ZModeler Brushe’s masking tools. The only way to get a correct mask is to Ctrl -drag rectangle or lasso.
This is a problem when I merge several subtools and can’t mask out islands any more after merging.
This happens also with some but not all simple low poly shapes, with all vertices merged.
Even more fascinating, when I z-remesh the subtool, the effect remains. As a test I used Zmodeler - move- island, and in deed a bunch of vertices stays in place and the mesh gets torn apart. Somehow there are hidden islands in my subtools that even survive a z-remesh !
I can’t immediately reproduce your problem. However:
This method of masking bypasses any concern for polygroups, and simply masks any geometry that falls under the masking marquee. This would also be true of shift-clicking a polygroup to hide all but that polygroup, then Ctrl-clicking in empty canvas space to mask what’s visible (or invert the masking if it is already masked).
If these methods of masking work, and polygroup-based methods don’t appear to work on all expected areas, the simplest explanation is that there are multiple polygroups present. It is possible for polygroups to be assigned a color that may be too similar to another polygroup to be noticeable.
In your screenshot, I notice both Fill and Line are enabled in the Polyframe button, but everything appears to be a single polygroup. Try using Tool> Polygroups > Group Visible with all geometry visible. Then re-try your polygroup based masking methods and see if it changes the results.
Confusing! But it could make sense if you happened to ZRemesh with the “Keep Groups” function enabled, and ZRemesher happened to assign overly similar polygroups to adjacent areas. I got such a result very quickly with ZRemesher ( perhaps too easily ). In the following image I ZRemeshed a couple cubes with Keep Groups active, and while each side of the cubes are a different polygroup, it assigned colors so similar to one of the cubes it appears to be the same polygroup:
If nothing I’ve said here helps you sort out what’s going on, I’d be happy to take a look at your problem file. Head over to Pixologic Support, and start a conversation. Provide the tool, minus any content not contributing to the issue to keep the file size down, and mark the conversation “Attention Spyndel”, or just explain that I sent you. It’ll find its way to me and we can look into it further.
