ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,475,631, issued on Nov. 18, was assigned to NVIDIA Corp. (Santa Clara, Calif.).

"Accelerating triangle visibility tests for real-time ray tracing" was invented by Gregory Muthler (Chapel Hill, N.C.), John Burgess (Austin, Texas), Henry Packard Moreton (Woodside, Calif.), Yury Uralsky (Los Gatos, Calif.), Levi Oliver (Webster, N.Y.), Magnus Andersson (Lund, Sweden) and Johannes Deligiannis (Stockholm).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques applicable to a ray tracing hardware accelerator for traversing a hierarchical acceleration structure with reduced round-trip communications with a processor are disclosed. The reduction of round-trip...