Module: Mesa
Branch: main
Commit: bb92c34c2859c2f5b42c9b6ba4f5603d79b72d33
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=bb92c34c2859c2f5b42c9b6ba4f5603d79b72d33

Author: Samuel Pitoiset <[email protected]>
Date:   Mon Nov 13 18:35:29 2023 +0100

radv: set radv_zero_vram=true for Unreal Engine 4/5

Unreal Engine seems to rely on uninitialized memory and
RADV_DEBUG=zerovram fixes a bunch of issues.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9025
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9380
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9026
Cc: mesa-stable
Signed-off-by: Samuel Pitoiset <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26188>

---

 src/util/00-radv-defaults.conf | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util/00-radv-defaults.conf b/src/util/00-radv-defaults.conf
index df89a791df0..5678c5e011f 100644
--- a/src/util/00-radv-defaults.conf
+++ b/src/util/00-radv-defaults.conf
@@ -59,6 +59,7 @@ Application bugs worked around in this file:
         <engine engine_name_match="^UnrealEngine"> <!-- UE4/5 Vulkan RHI -->
             <option name="radv_flush_before_query_copy" value="true" />
             <option name="radv_flush_before_timestamp_write" value="true" />
+            <option name="radv_zero_vram" value="true" />
         </engine>
 
         <engine engine_name_match="DXVK_NvRemix">

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