Ray Tracing, Bounding Volume Hierarchy, Bvh, Axis Aligned, Tetrahedron Octahedron.
What to make out of all this? Good question. What I can say is this: Yes, in my specific ray tracing system and setup, AABOs and AABBs match pretty much. Which one wins in which situation seems to depend on the scene and viewpoint. AABOs can shrink the volume further down, but I didn’t manage to