This implements basic weight rendering with the draw manager.
Drawing options are still missing (vertex and face selection masking).
Also, there are two known crashes:
- If two objects have the same mesh, there is a segfault when entering weight painting mode unless the object is the last on being drawn with that mesh (this seems to be related to where caches are being stored, and it seems that maybe there are going to be some changes in that area, so we'll see how this goes).
- If you close Blender while in weight painting mode, it segfaults (most useless segfault ever, hehe).
This is part of T51208