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Michael Krumland-DunningandClaude Opus 5.5 39f6f45487 docs(shader): record 2D-array comparison samples measured on RDNA2
A comparison or plain sample with a 2D-array address on a 2D T#
returns what the same sample with a 2D address returns, whatever the
slice, as measured with the hardware oracle on RDNA2 (gfx1036) for
formats 1, 7, 22 and 56 with point and bilinear filtering, while a
four-layer 2D-array T# over the same memory returns a different result
per slice. Codes 1 and 56 also compare to 0 with 2D-array addresses.
The three comparison debt entries keep gfx1013, cube comparisons and
the other formats' array comparisons as open.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-26 10:18:36 -07:00
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