Fix GPU shader correctness and warnings surfaced by DXC warning flags - #2319

Fix GPU shader correctness and warnings surfaced by DXC warning flags#2319

doug-walker merged 3 commits into

AcademySoftwareFoundation:mainAcademySoftwareFoundation/OpenColorIO:mainfrom

num3ric:fix/gpu-shader-unused-var-warningsnum3ric/OpenColorIO:fix/gpu-shader-unused-var-warningsCopy head branch name to clipboard