Articles
https://colorful-pico.net/introduction-to-addon-development-in-blender/2.8/index.html
https://bookyakuno.com/blender-addon-making-tutorial/
特定フォルダの.blendファイルを一括処理
2.8 https://bluebirdofoz.hatenablog.com/entry/2020/06/14/200042
2.79 https://bluebirdofoz.hatenablog.com/entry/2019/07/17/085513
https://dskjal.com/blender/database-and-scene-graph.html
https://docs.blender.org/api/current/bpy.types.Object.html
https://docs.blender.org/api/current/bpy.types.VertexGroup.html#bpy.types.VertexGroup
object.matrix_wrold