7-post thread with @rianflo, Nov 2022. Confirms NOTimothyLottes wrote
CAS/FSR1/etc GLSL versions with packed 16-bit math by hand. 'Explicit
packed 16-bit works on AMD VK Vega and up. Up to 30% improvement on
ALU bound stuff. Lots of occupancy wins.' Constants all packed and
aliased as UINT (no conversion overheads). FSR1 source has 'F' (32-bit)
and 'H' and 'Hx2' (packed 16-bit) function variants. Sibling to the
Nov 2022 GPU tip-line thread (1588906002212323328).
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