How can I project only “old” topology when I import a mesh?
I started out with an initial mesh in zbrush with multiple sub division layers. I then decided to add an inner mouth and so I exported the lowest sub division into blender and modeled in the mouth. Finally, I exported this new mesh back into zbrush.
This new mesh is simply the old mesh plus some new vertices for the inner mouth. However, when I project all levels of subdivision, zbrush attempts to project some of the inner mouth onto the surrounding face.
What’d I like to achieve is to simply project the details for everything but the newly added vertices that represent the mouth. Is this possible?
One approach that I tried was to try to mask off/hide the inner mouth. I wasn’t able to figure this out yet since the rest of the face kept getting in the way. I tried masking with backface enabled - but this still selected parts of the face.
My last alternative is to try to model the inner mouth directly in zbrush if possible…