Model Sphere Boundary Volume Hierarchy

Using a 4-vertex triangle polygon volume as indicator for the sphere boundary volume hierarchy nodes in default cad/3d editors, named properly to indicate the node in the rotation relationship hierarchy. The bvh structure can be generated while loading, dynamically, either in the octree structure or optimal distribution 8-sphere per level structure. Can be constructed as whole scene bvh structure, which has multiple models inside a single bvh sphere, which can be square grid bfs cells.