DXVK (DirectX-over-Vulkan) - stability improvements & potential performance boost: installation guide & details

[shanie]

DXVK is a Vulkan-based graphics API translation layer for Direct3D 9/10/11 developed for running 3D applications on Linux using Wine. It can, however, be applied to OMSI 2 (Windows/Linux) which results in stability improvements and can result in a potential performance boosts.

A few months ago, I stumbled across this work of art and discovered that it works brilliantly with OMSI 2! Since then I have been testing different things and collecting bits of knowledge for a full in-depth guide on how to set it up and use it with SweetFX & ENB graphics modifications. It is now ready - try it out!

https://steamcommunity.com/sharedfiles/filedetails/?id=2461019058

[HUDoff••|972]

Interesting

[André]

Interesting indeed, but keep in mind thos counts to modding/ user changes, which can lead to unkown issues

[shanie]

Postat inițial de André Aerosoft:

Intresting indeed, but keep in mind thos counts to modding/ user changes, which can lead to unkown issues

Yep, this warning is very clearly stated at multiple points in the guide

[RedLightning]

There are still a TON of 'unknown issues' plaguing OMSI that apparently will never get fixed..

I'm willing to give this a shot.. "unknown issues' and all.

Would be better if Aerosoft had fixed this game before the devs split..

Thankfully the user base is looking into ways to get this sim working better.

[velogoo]

Thanks for the guide sjain... will be interesting to hear what results people get with this.

[RedLightning]

Well I tried this out.. I will say that I did not get any of the crashing during shader compilation.

I will say that the frames are certainly better, much smoother feeling. I also loaded a bus that I always get white textures constantly .. and...

I am pleased to say that I did not see a SINGLE white texture throughout the route even with my settings up fairly high and all the addon people (which usually have white textures at times), AND the heavy bus .

NOT A ONE.

Thank you SO much.. Thank you thank you for your research and time OP.

[shanie]

No problem c: glad it helped!

[shanie]

v2021.1 update released

WARNING: Installing this update as normal will overwrite the dxvk.conf / CONF file, if you modified this file manually please back it up before proceeding.
NOTE: If you were experiencing issues of any type, please read through the guide again (especially the "Installation" & "Troubleshooting" sections) as they may be addressed now.

• Added options to use FXAA or SMAA with/without SweetFX or ENB
  
• Added options to force aspect ratio for users experiencing window draw issues (e.g. stretched, too small)
  
• Added options to use existing DXVK cache files for various cache generation issues & behaviours[github.com]
  
• Removed MSAA options as this currently breaks the depth buffer, causing incorrect render orders in reflections[github.com]
  
• Updated SweetFX from v1.5 to v1.5.1 official / OMSI modified version 2.0.1 by _FreD[forum.omnibussimulator.de] (thanks kenji for making me aware)
  
• Updated installation instructions to address factors that could be causing issues as a result of DXVK's behavioural changes
  
• Speculative fix for window drawing too small on High DPI systems
  
• Speculative fix for extremely giant Steam overlay on High DPI systems
  
• Added section addressing how to setup DXVK in-game HUD
  
• Added "Troubleshooting" section with a number of tips on what to do when experiencing different issues
  
• Added clear instructions on how to restore existing SweetFX/ENB presets while retaining DXVK functionality
  
• Added "Disclaimer" section before the "Installation" section addressing important points to consider before proceeding, including warning for users with AMD Radeon integrated graphics and no discrete graphics cards.
  
• Minor improvements & cleanup

Thanks to kenji, velaro_006, Rѕησявσу95, volvorider, daandekrieger_, mak47 & Drift_Legend for reporting issues and testing different solutions.

[Futuristic Hexagon]

This sounds like the closet we can get to a community patch right now. Certainly watching this with great curiosity.

Sounds like it could be a bit of a game changer to extend the life of the sim!

How is it working out for everyone so far?

[Merlin]

Would be nice if this could get this made as a auto installer for us who are not happy about messing around with config files.

[Prekratic]

Postat inițial de Merlin:

Would be nice if this could get this made as a auto installer for us who are not happy about messing around with config files.

Then "keyboard.cfg" will be overwriten and you will lose your custom keyboard settings. :)

[Merlin]

Postat inițial de Prekratic:

Postat inițial de Merlin:

Would be nice if this could get this made as a auto installer for us who are not happy about messing around with config files.

Then "keyboard.cfg" will be overwriten and you will lose your custom keyboard settings. :)

That would be a pain.

[Tobias4827]

Hi, I just have big issue with Omsi when I install this plugin. The game wont´t simply start (black and white loading screen appears and then the game crashes). Can someone help me with this issue? My graphics card supports Vulkan (Radeon RX 550).

Logfile:
====================
Start logging
====================

Date: 9. 2. 2022
Time: 23:02:53
Version: 2.3.004

0 23:02:53 - - Information: OMSI is working in fullscreen mode
1 23:02:55 - - Information: TIR - looking for DLL path...
2 23:02:55 - - Information: TIR - DLL path not found - TIR disabled [0]
3 23:03:21 - - Information: Options dialog created
4 23:03:21 - - Information: Weather dialog created
5 23:03:21 - - Information: Profiles dialog created
6 23:03:21 - - Information: Time table running dialog created
7 23:03:21 - - Information: Start dialog created
8 23:03:21 - - Information: Menu 2 created
9 23:03:21 - - Information: Menu 3 created
10 23:03:21 - - Information: Tut dialog created
11 23:03:21 - - Information: Menu pos set
12 23:03:22 - - Information: Bro initialized
13 23:03:22 - - Information: Human engine initialized
14 23:03:22 - - Information: Forms set
15 23:03:22 - - Information: Captions set
16 23:03:22 - - Information: Screen ration set

Omsi_d3d9 Logfile:

info: Game: Omsi.exe
info: DXVK: v1.8.1
info: Found config file: dxvk.conf
info: Effective configuration:
info: d3d9.dpiAware = True
info: d3d9.maxFrameLatency = 0
info: dxgi.maxFrameLatency = 0
info: Built-in extension providers:
info: Win32 WSI
info: OpenVR
info: OpenXR
info: OpenVR: could not open registry key, status 2
warn: OpenVR: Failed to locate module
info: Enabled instance extensions:
info: VK_KHR_surface
info: VK_KHR_win32_surface

[shanie]

Try the latest version of DXVK from github releases instead

https://github.com/doitsujin/dxvk/releases/latest

[Tobias4827]

I moved file dxvk.conf into Omsi drectory (ver. 1.9.4), same problem. But I´m not quite sure if i installed it correctly