Resolve Non-Manifold
Examples of non-manifold geometry: only 1 point is
located at each of the marked positions. At the bottom center there are 2 adjacent polygons with opposing
Normals.
What is non-manifold geometry? Non-manifold geometry describes edges that share more than 2 polygons.
This type of geometry should be avoided since it can lead to a series of issues, e.g., for rendering or 3D printing, etc. Resolve Non-Manifold "repairs" these regions by evaluating the affected regions and creating separated polygons/points accordingly.