LeandroLP23 3334e41e45 fix(shader): read the ancillary render target index as 0 ... No pre-rasterization stage writes Layer: vertex layer exports are ignored, so the first layer is used and the render target index field of the packed ancillary word is 0. The lowering read the Layer builtin for it instead. AMD's Windows driver drops the color writes of a fragment shader that consumes an unwritten Layer, which made agc_driver_relative_ancillary fail on AMD hardware (#4800); lavapipe returns 0 there. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>		2026-10-13 13:23:56 +13:00
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include/Optimization	feat(shader): give reads the masked-select pass keeps the whole pixel ancillary word	2026-10-13 13:06:21 +13:00
src	fix(shader): read the ancillary render target index as 0	2026-10-13 13:23:56 +13:00