The title says it pretty much all: the shrinkwrap modifier is no longer
dependent on the legacy DerivedMesh.
The benefits for doing this are:
- The DerivedMesh is closer to be removed from the codebase.
- Only base vertices are subdivided which could result in better
performance and memory usage.
- Proper crease support (for edges and vertices).
The downside of using OpenSubdiv is that the topology refiner might be
expensive to calculate, so for meshes with a lot of extraordinary faces
(such as n-gons, triangles) the performance will be worse.
Pull Request: https://projects.blender.org/blender/blender/pulls/143706
cda9ff445f