| Class | Description |
| Geometry |
Geometry is a collection of SubGeometries, each of which contain the actual geometrical data such as vertices,
normals, uvs, etc. |
| Object3D |
Object3D provides a base class for any 3D object that has a (local) transformation. |
| SkinnedSubGeometry |
SkinnedSubGeometry provides a SubGeometry extension that contains data needed to skin vertices. |
| SubGeometry |
The SubGeometry class is a collections of geometric data that describes a triangle mesh. |
| SubMesh |
SubMesh wraps a SubGeometry as a scene graph instantiation. |