b424d49ac0
It's like the layer, it has to be exported via the pos and also as a varying if the fragment shader reads it. Fixes dEQP-VK.draw.shader_viewport_index.fragment_shader_* Cc: <mesa-stable@lists.freedesktop.org> Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Rhys Perry <pendingchaos02@gmail.com> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4564>