NVIDIA is a texelFetch, so (x, 0, 0, 1) Intel is a TexelFetch pre-SKL. I'm not sure what it is for SKL+. Probably (x, 0, 0, 1) but it's been a while.
~Faith On Wed, Apr 23, 2025 at 1:11 PM Marek Olšák <mar...@gmail.com> wrote: > 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 >> >
