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VKD3D-Proton is the project that translates Microsoft's Direct3D 12 to Vulkan, another big part of Steam Play Proton and there's a new release out. If you wish to know more about Steam Play and Proton do check out our dedicated section.

A continued focus of VKD3D-Proton is bringing up support for DirectX Raytracing (DXR). As of this version 2.5 the developer notes that DXR 1.0 "is more or less feature complete". A few weird issues are left and eventually the config variable to enable it will be removed when it's stable enough.

Further work went into improving DXR 1.1 and it's now experimentally exposed, with it being enabled by setting VKD3D_CONFIG=dxr11. They say that DXR 1.1 cannot be "fully implemented" just yet, although the feature support missing doesn't seem to currently be used by games. As of now DXR 1.1 inline raytracing is also fully implemented.

They listed some results when testing with NVIDIA and DXR 1.1:

  • Control - already worked
  • DEATHLOOP - appears to work correctly
  • Cyberpunk 2077 - DXR can be enabled, but GPU timeouts
  • World of Warcraft - according to a user, it works, but we have not confirmed ourselves
  • Metro Exodus: Enhanced Edition -
    gets ingame and appears to work? Not sure if it looks correct.
    Heavy CPU stutter for some reason ...
  • Metro Exodus (original release) - GPU timeouts when enabling DXR
  • Resident Evil: Village - Appears to work, but the visual difference is subtle.

This tagged release also has the bits needed for NVIDIA DLSS in D3D12 titles in Proton. NVIDIA Resizable BAR is supported too for increasing performance, with a new config option of VKD3D_CONFIG=no_upload_hvv to disable all uses of PCI-e BAR memory.

Plenty of Shader Model work was done too with Shader model 6.5 being exposed and model 6.6 "should be straight forward once that becomes relevant".

Lots of bug fixes too for various games like DiRT 5, Diabli II Resurrected, Psychonauts 2, Deathloop, F1 2021, WRC 10, Hitman 3, Anno 1800 and more.

For the full details see the release notes.

Article taken from GamingOnLinux.com.
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16 comments
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Koopacabras Oct 18, 2021
yeah with this release finally I can play DIRT 5, yay!! awesome game, the most close to Dirt Showdown of all the series.
benjamimgois Oct 18, 2021
So, Nvidia resizable bar is active by default ? or do i have to manually enable it ?
sfjuocekr Oct 18, 2021
Sorry, I'm that one user testament of it working :)

Comandante Ñoñardo 9 years Oct 18, 2021
Proton Experimental updated to this version..

QuoteAvailable in Proton Experimental (as of 2021/10/18):

All changes from Proton 6.3-7.
Performance improvements around input, windowing, and memory allocation.
Updated file distribution method to save disk space.
Assassin's Creed, DEATHLOOP, Mass Effect Legendary Edition, Monster Boy and the Cursed Kingdom, GreedFall, Eve Online, Nickelodeon All-Star Brawl and Game Dev Tycoon are playable.
Fix The Sims 3 and Victoria II launcher crashes.
Support DLSS in DX11 and DX12 games (guarded by PROTON_ENABLE_NVAPI=1 and dxgi.nvapiHack = False).
Fix crashes in Project Wingman, Satisfactory and other Unreal Engine 4 games using the Vulkan renderer.
Fix Call of Duty: Infinite Warfare hanging on exit.
Improve Paradox Launcher windowing.
Fix connection issues in Satisfactory on systems with multiple network interfaces.
Fix Atomic Shop and random crashes on start in Fallout 76.
Fix multiplayer in RaceRoom.
Fix flickering in Mount & Blade II: Bannerlord launcher.
Support latest Steamworks SDK.
Update dxvk to include the latest development work.
Update vkd3d-proton to v2.5.

Anyway. I am still unable to activate Death Stranding DLSS on my Nvidia RTX 2060 SUPER using drivers 470.74
jens Oct 18, 2021
  • Supporter
Quoting: Comandante ÑoñardoAnyway. I am still unable to activate Death Stranding DLSS on my Nvidia RTX 2060 SUPER using drivers 470.74

Do you have a PRIME setup?
LordDaveTheKind Oct 18, 2021
View PC info
  • Supporter Plus
Tried now with The Ascent, and it does not look bad at all:






I could not figure out how to enable DLSS and NVAPI though. I'll do further experiments in the next days.

***Edit: made also DLSS work, earlier than expected. I had to put all the rebuilt libraries in the executable directory:


And then use this launch command:
 
WINEDDLOVERRIDES="dxgi,nvapi,nvapi64,_nvngx,nvngx=n" PROTON_LOG=0 PROTON_ENABLE_NVAPI=1 VKD3D_CONFIG=dxr11 VKD3D_DEBUG=none mangohud gamemoderun %command%


In this way, the DLSS settings finally appear in game:



And the game has a good performance overall:




Last edited by LordDaveTheKind on 18 October 2021 at 8:34 pm UTC
Comandante Ñoñardo 9 years Oct 18, 2021
Quoting: jens
Quoting: Comandante ÑoñardoAnyway. I am still unable to activate Death Stranding DLSS on my Nvidia RTX 2060 SUPER using drivers 470.74

Do you have a PRIME setup?
No.
jens Oct 18, 2021
  • Supporter
Quoting: Comandante Ñoñardo
Quoting: jens
Quoting: Comandante ÑoñardoAnyway. I am still unable to activate Death Stranding DLSS on my Nvidia RTX 2060 SUPER using drivers 470.74

Do you have a PRIME setup?
No.

ok, then it should actually just work by using `PROTON_ENABLE_NVAPI=1` and disabling the DXVK nvapi hack for that title. May be you are running into https://old.reddit.com/r/linux_gaming/comments/pv37zt/is_dlss_with_proton_already_working/ where _nvngx.dll and nvngx.dll is missing?
Comandante Ñoñardo 9 years Oct 18, 2021
Quoting: jensMay be you are running into https://old.reddit.com/r/linux_gaming/comments/pv37zt/is_dlss_with_proton_already_working/ where _nvngx.dll and nvngx.dll is missing?

The file nvngx.dll is in /usr/lib/nvidia/wine, but _nvngx.dll is not there...

I downloaded the file NVIDIA-Linux-x86_64-470.74.run, set it as executable and extracted all the files..
After copying the file _nvngx.dll the "/usr/lib/nvidia/wine" folder with read only permission, now I have DLSS available.

Thanks for the clue
jens Oct 18, 2021
  • Supporter
Quoting: Comandante ÑoñardoI downloaded the file NVIDIA-Linux-x86_64-470.74.run, set it as executable and extracted all the files..
After copying the file _nvngx.dll the "/usr/lib/nvidia/wine" folder with read only permission, now I have DLSS available.

Thanks for the clue
Cool


Last edited by jens on 18 October 2021 at 8:32 pm UTC
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