682cb6ecd3
Reduce register spill to global memory in raytrace_resolve function. Results in a 20% uplift for this particular shader on Apple Silicon GPUs. Contributing to 3-5% uplift for scenes which have SSR enabled. This is achieved via reducing memory pressure using a packed data type for the sampling kernel. Authored by Apple: Michael Parkin-White Pull Request: https://projects.blender.org/blender/blender/pulls/106231