Does this function have a bug? I mean it is no problem to render a rigid mesh with 1 weight per vertex, but when it gets to more it seems to fail. I do not know exactly if it is the function that causes the problems or is it my code? The problem is, that on some times the mesh gets split like a hole in the mesh when the mesh deforms. When i export and use 1 weight per vertex there are no problems at all.