cb9ca2f7a7
While adding test coverage for mesh subdivision surface scenarios, a few problems were noticed with vertex crease support. This PR fixes: - Used incorrect `crease_sharpnesses` instead of `corner_sharpnesses` - Used incorrect value for an "infinitely sharp" vertex crease - Unnecessarily wrote out Blender's `crease_vert` attribute as a primvar Tests are added which validate everything we support. Pull Request: https://projects.blender.org/blender/blender/pulls/126209