- OpenSubdiv does not support:
- non-manifold meshes
Maya automatically defaults to Maya Catmull-Clark for meshes that contain non-manifold components.
When OpenSubdiv cannot be used, an error message appears in the Script Editor and the polyShape node, indicating that the Maya Catmull-Clark subdivision method is active.
Note: Modeling operations can generate non-manifold components temporarily. When a non-manifold mesh becomes manifold, the warning messages disappear and the subdivision method automatically switches to OpenSubdiv. - vector displacement maps
explicit tiles
- non-manifold meshes
- OpenSubdiv Catmull-Clark Adaptive is only supported by OpenGL 4 and DirextX11 compatible graphics cards.
Maya automatically defaults to Maya Catmull-Clark when OpenGL 4 is not supported.
- Visualizing tessellation with OpenSubdiv Catmull-Clark Adaptive is only supported in the Legacy Default Viewport. (To visualize tessellation when OpenSubdiv Camtull-Clark Adaptive is on, turn on Display Subdivisions and adjust the Adaptive Tessellation Level.)
- The Show Displacements option in the OpenSubdiv Controls is only supported by OpenGL 4 compatible graphics cards.
When Show Displacements is supported and turned on, only a subset of the material properties are displayed (basic coloring and a diffuse texture).