Ray Tracing, Bounding Volume Hierarchy, Bvh, Axis Aligned, Tetrahedron Octahedron.
References (in order of appearance) Tomas Akenine-Möller, Eric Haines, Naty Hoffman, Angelo Pesce, Michal Iwanicki, Sébastien Hillaire: Real-Time Rendering 4th Edition, 2018, Real-Time Ray Tracing Chapter Allen Y. Chang: A Survey of Geometric Data Structures for Ray Tracing, Technical Report, 2001