Initialize d[uv]d[xy] to 0 in all DifferentialGeometry constructor code paths. (Cleanup, likely to save risk of uninitialized memory reads down the line.)
Initialize d[uv]d[xy] to 0 in all DifferentialGeometry constructor code paths.
(Cleanup, likely to save risk of uninitialized memory reads down the line.)

patwonder/pbrt-v2-skin,patwonder/pbrt-v2-skin,patwonder/pbrt-v2-skin,patwonder/pbrt-v2-skin,patwonder/pbrt-v2-skin