ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,417,577, issued on Sept. 16, was assigned to Imagination Technologies Ltd. (Kings Langley, Great Britain).
"Coherency gathering for ray tracing" was invented by Michael John Livesley (Hertfordshire, Great Britain) and Gregory Clark (Hertfordshire, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for coherency gathering for rays in a ray tracing system. The ray tracing system uses a hierarchical acceleration structure comprising a plurality of nodes including upper level nodes and lower level nodes. For each instance where one of the lower level nodes is a child of one of the upper level nodes, an instance transform is de...