radv: use wave32 for raytracing

Beginning of Quake II RTX, 50% resolution scale, RX 6800: 48 -> 54 FPS. Signed-off-by: Rhys Perry <pendingchaos02@gmail.com> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14011>
2021-12-02 16:12:23 +00:00
parent 2298a96f9f
commit e7002b6f96
6 changed files with 19 additions and 0 deletions
--- a/docs/envvars.rst
+++ b/docs/envvars.rst
@@ -698,6 +698,8 @@ RADV driver environment variables
      enable rt extensions whose implementation is still experimental.
   ``sam``
      enable optimizations to move more driver internal objects to VRAM.
+   ``rtwave64``
+      enable wave64 for ray tracing shaders (GFX10+)

 :envvar:`RADV_TEX_ANISO`
   force anisotropy filter (up to 16)