A question about bone animation with editing coordinate of each point on the meshes

I’m studying bone animation demo with the model file named ‘dummy3.babylon’.
Now I want to edit coordinate of each point on the meshes,like point.z += 10.
How can i keep the bone animation run correctly after that?
May be i should edit the bone matrix data and the every matrix data in bone.animations too?

Hey there and welcome

If you want to edit the geometry, you can simply change the underlying buffer.
The bone will keep working as their influence is dictated by another buffer.

Doc: Updating Vertices | Babylon.js Documentation