Ray Tracing, Bounding Volume Hierarchy, Bvh, Axis Aligned, Tetrahedron Octahedron.
enter the tetrahedron. If all plane normals point outside of the tetrahedron, the opposite holds: Various cases of rays intersecting AABTs. Violet circles indicate parametric distance to the planes. Top-left: Rays originating outside of the AABT. Plane normals pointing toward the origin are