ALEXANDRIA, Va., June 17 -- United States Patent no. 12,315,068, issued on May 27, was assigned to Warner Bros. Entertainment Inc. (Burbank, Calif.).

"Efficient real-time shadow rendering" was invented by Bo Li (Montreal).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for real-time shadow rendering using cached shadow maps and deferred shading by a video processor of a game console or the like includes, for at least each key frame of video output, determining a viewpoint for a current key frame based on user input, filtering a texel of a frame-specific shadow map based on a dynamic mask wherein the texel is filtered, for a shadowed light, from a static shadow map and a dynamic shadow map or from the ...