ILODObject Interface for objects that can toggle their visibily depending on view and distance to camera
 LODObject 3d object container that is drawn only if its scaling to perspective falls within a given range.
 ObjectContainer3D 3d object container node for other 3d objects in a scene
 Scene3D The root container of all 3d objects in a single scene
 View3D Sprite container used for storing camera, scene, session, renderer and clip references, and resolving mouse events