a list of indices for the verts that each bone should transform. Should probably be a Numeric 3d array. where self.data[0] == list of vert indices for the first bone.

Each index could be 4 bytes for four bones. - this would be harder to access. - would limit the total number of bones.

For now keep it simple.

Update ( self,  milk_data )

__init__ ( self,  milk_data )