ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,505,598, issued on Dec. 23, was assigned to PIXAR (Emeryville, Calif.).
"Hair editing techniques for animation" was invented by Fernando Ferrari de Goes (Kensington, Calif.), Brandon Montell (San Francisco) and Jacob Brooks (Walnut Creek, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for configuring hair for animation include obtaining a first representation of a set of hairs on a surface and a second representation of a subset of the hairs. At a vertex of the surface, an interpolated hair is generated by minimizing a difference between a shape of a first hair and the interpolated hair. An edit is received to modify the shape of the f...