This PR implements the Normalize operators in Weight Paint mode for
GPv3:
- Normalize weights of the active vertex group. This operator normalizes
all the vertex weights in the active vertex group to a value between 0.0
and 1.0.
- Normalize All. This operator normalizes the weights of all vertex
groups, so that for each vertex, the sum of the weights is 1.0. Weights
of locked vertex groups are not changed. By default, the active vertex
group also stays unchanged, unless it's necessary to reach a normalized
state.
The operators are added to the 'Weight' menu in Weight Paint mode.
Pull Request: https://projects.blender.org/blender/blender/pulls/126302
eaad744c7f