Zbrush Dynamesh | Utility

✅ – If you don’t want edges to close, use Polygroups and enable Groups by Polygroups .

→ Make sure you're on a mesh subtool (not a 3D primitive with "Make PolyMesh3D" unchecked). zbrush dynamesh utility

✅ – DynaMesh respects symmetry if enabled. It can even fix asymmetrical topology. ✅ – If you don’t want edges to