check_orphaned_vertex_groups.gist

A script for cyberpunk meshes to check for vertex groups without parent bones.

import bpy
import bmesh

# script originally created by engres

for armature in filter(lambda obj: obj.type == 'ARMATURE', bpy.data.objects):
    print("Checking armature {}".format(armature.name))
    boneNames = []
    for pBone in armature.pose.bones:
        boneName = pBone.name
        print(boneName)
        boneNames.append(boneName)
    meshes = filter(lambda obj: obj.type == 'MESH' and obj.parent == armature, bpy.data.objects)
    for mesh in meshes:
        missingBones = []
        for vGroup in mesh.vertex_groups:
            if vGroup.name not in boneNames:
                missingBones.append(vGroup.name)
        if missingBones != []:
            print("  {}: missing {} bones".format(
                mesh.name, 
                len(missingBones), 
                missingBones
            ))