ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,450,820, issued on Oct. 21, was assigned to ATI Technologies ULC (Markham, Canada).

"Emulating oriented bounding boxes in bounding volume hierarchies" was invented by David William John Pankratz (Markham, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A technique for performing ray tracing is provided. The technique is applied to a bounding volume hierarchy which comprises a plurality of oriented bounding boxes. The oriented bounding boxes are emulated by translating each oriented bounding box into two or more volumes. After the emulating step, the bounding volume hierarchy is traversed. In some examples, the regular shapes or volumes comprise ax...