I'm not seeing this on:
OS: Arch Linux x86_64
Kernel: Linux 6.19.13-arch1-1
CPU: AMD Ryzen 7 9800X3D
GPU: AMD Radeon RX 9070 XT
WM: Hyprland 0.54.3 (Wayland)
Vulkan: 1.4.348 - radv [Mesa 26.2.0-devel (git-642bed9eba)]
OpenGL: 4.6 (Compatibility Profile) Mesa 26.2.0-devel (git-642bed9eba)
OpenCL: 3.0
Mesa: mesa-git 26.2.0_devel.221639.642bed9eba7.3f53833-1
libdrm: libdrm 2.4.131-1
linux-firmware: linux-firmware 20260410
If I drop the lighting quality setting to around "high", I do see something resembling what you're describing, but I can reproduce it on Windows, so that's just a consequence of the GI implementation in the game itself.
It would probably be helpful if you could provide a video of the problem, and a Proton log. (PROTON_LOG=1)
The later Crimson Desert updates has been troublesome as far as I know. Mesa main (git) got some sort of fix that targets some CD issues using vkd3d-proton. I am not sure if the fix is needed on Mesa stable or not or if was needed only for the main branch.
The later Crimson Desert updates has been troublesome as far as I know. Mesa main (git) got some sort of fix that targets some CD issues using vkd3d-proton. I am not sure if the fix is needed on Mesa stable or not or if was needed only for the main branch.
The patch (now merged to main) fixed shadow and UI flickering since game version 1.04. I didn't even consider that could be what they're talking about. That's why a video would be helpful.
But yes, it seems likely that they're related.
So sounds like someone need to ask that get backported to 26.0 stable? Sorry i'm still learning git.
So sounds like someone need to ask that get backported to 26.0 stable? Sorry i'm still learning git.
Whether it does or doesn't, it's not directly relevant to VKD3D. If you could record a video or if you're able to try out the main branch of Mesa, we could confirm that it's the same issue. If it is, there's nothing the maintainers of this repo can really do about it.
Just heard back from Samuel on the charge that was merged he confirmed it'll be backported into 26.0 stable! That would also mean we can probably just close this.
I'm so sorry ya'll I didn't realized my video failed to upload until now. I uploaded to YT:
https://youtube.com/shorts/4QNYy-gYXxE?si=GfmtZao9UifmEUFf
proton hotfixx1 2026-04PROTON_LOG=1`)x1 2026-04RADV_DEBUG=nohizx1 2026-04
Since 1.04, the game has a persistent lighting issue where global illumination and shadows flicker and periodically reset — like the GI can't stabilize and keeps starting over. This was not present before 1.04 in the same areas with the same settings.
Tested across three machines:
Ryzen 7800X3D + RX 7900 XTX, Mesa 26.0.4, Bazzite
Ryzen 7900X + RX 6800 XT, Bazzite
Legion Go 2 Z2 Extreme, Bazzite
All three exhibit identical behavior. Tested with:
Proton CachyOS (latest)
Proton GE 10-34
Proton Hotfix
None made a difference. The issue also persists regardless of:
RT on or off
FSR/XeSS on or off
Model Quality (including Low)
Shadow quality settings
Shader cache fully cleared between tests. RADV_DEBUG=nohiz had no effect.
Given three different AMD GPUs, three different Proton versions, and settings having zero impact, this looks like a 1.04 regression in how the game's GI/lighting is being handled through the translation layer rather than anything hardware or settings specific.