Nearest Bone Weight fujisunflower.booth.pm/items/...
This is how to skirt-weight-transfer in Blender by using Nearest Bone Weight.
1. Duplicate your skirt as base skirt.
2. Fit the vertices of base skirt to the bones.
3. Use Nearest Bone Weight.
4. Weight Transfer from the base skirt to your skirt by nearest face interpolate.