ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,499,607, issued on Dec. 16, was assigned to Imagination Technologies Ltd. (Kings Langley, Great Britain).
"Importance sampling for determining a light map" was invented by Luke T. Peterson (San Francisco), Justin P. DeCell (San Francisco) and Jens Fursund (San Francisco).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light map for a scene is determined for use in rendering the scene in a graphics processing system. Initial lighting indications representing lighting within the scene are determined. For a texel position of the light map, the initial lighting indications are sampled using an importance sampling technique to identify positions within the s...