(numpy array, string, io) Object3D can be initialized from a file or a numpy array. You can pass a path to a file or an io object and a file_type which must be one of "obj", "gltf", "glb", "babylon", "stl", "pts.json".
The shape of the numpy array must be one of either:
[[x y z],...] nx3
[x y z c],...] nx4 where c is a category with supported range[1,14]