AMD lowers it to an image load, which follows the rules for image views, so (x, 0, 0, 1) for R8_UNORM.
Marek On Wed, Apr 23, 2025 at 12:25 PM Mike Blumenkrantz < michael.blumenkra...@gmail.com> wrote: > Hi, > > An issue recently came up in the GL working group: what is the robustness > behavior of framebuffer fetch? For example, if a framebuffer attachment > format is R8_UNORM, what are the YZW components which get read back? > > If people from all the drivers (besides panfrost) which support this > extension could reply with the expected behavior on their hardware, that > would be helpful. > > > Thanks, > Mike >
