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Left 4 Dead 2 updated with Vulkan support thanks to DXVK

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We've only just seen a new release of the Direct3D to Vulkan translation layer DXVK, and now it's powering Left 4 Dead 2 with a fresh free upgrade out now.

Much like we saw with DXVK being added to Portal 2, this new rendering mode is optional. It can be enabled by adding "-vulkan" as a command line option. To do so: right click the game and go to Properties, ensure you're on the General tab on the left, then enter "-vulkan" (without quotes) in the Launch Options box.

There's plenty else that's new including:

- Better support for ultrawide monitors in the UI and game (requires Vulkan if using Linux)
- Marked the game as DPI-aware for high DPI displays.
- Improved default settings for window size and type.
- Improved full-screen quad rendering performance.
- Made captions anti-aliased
- Marked fps_max and viewmodel_fov as FCVAR_RELEASE.
- Cvars 'survivor_incap_health' and 'survivor_incap_decay_rate' can now be changed after startup.
- New cvar 'charger_pz_claw_damage'; functions the same as equivalent melee cvars for other specials.
- New archived cvar "addons_hide_conflict_dialog" suppresses the warning dialog in the addons screen. Any conflicting addons will still be highlighted in red with conflicts printed to the console.
- Added an FOV slider to the Multiplayer settings.
- Added a +bench_demo [name]   command line parameter which will run a demo, and quit after it is finished.
- Added a -bench_settings [name] command line parameter to load a cfg/video_bench_{name}.txt file containing settings to load. There are a set of defaults provided, very_high_4k, very_high, high, medium and low.
- Lobbies that connect via a forced server IP are not considered for "Official Only" Quick Match searches.
- Overhauled UI usability on controller
• Added controller button icons across the UI.
• Made confirmation prompts accessible on controller.
• Now able to select mutations on controller.
• Now able to fully manage lobbys on controller.
• Now able to manage addons on controller.
• Now able to browse achievement details on controller.
• The game instructor (in-game hints) now shows controller buttons and hints.
• Added a flashlight binding to the default controller config.
• Made the intro video skippable by any button on a Steam Controller.

Plus a bunch of bug fixes, some of which are Linux specific including a startup crash, possible text corruption fixes for UTF-8 conversion, addon info being truncated "much earlier on Linux", the Windowed (No Border) option should now work on Linux plus a bunch of new scripting hooks for modders.

What's the point in adding Vulkan like this? Well, the original ports from Valve used a layer called ToGL which translated the original Direct3D rendering to OpenGL. With the Vulkan launch option this would replace it. It should give better overall performance, and hopefully smoother framerates. Perhaps even helping with lower end hardware, like an upcoming SteamPal handheld which would make sense for all the controller fixes.

You can play Left 4 Dead 2 on Steam.

Article taken from GamingOnLinux.com.
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21 comments
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Lofty 15 Jun
Quoting: ShadMessaNow they just need to add that option to CSGO

Yes.

Quoting: fagnerlnPlease Valve... Global Offensive next... I never asked for anything... I love you

Yes.
1xok 15 Jun
Is Half Life (2) actually on Vulkan?
Calinou 15 Jun
Quoting: 1xokIs Half Life (2) actually on Vulkan?

No, Half-Life 2 is still using ToGL on Linux. It has less demanding artwork than L4D2 or Portal 2, so it's usually not much of a problem in practice.


Last edited by Calinou on 15 June 2021 at 10:22 pm UTC
Rob-Retro 15 Jun
Quoting: chimpy
Quoting: TheReaperUKAnyone else getting a strange dialog box just after the intro but before the menu, its unreadable but once click the only click box loads to menu fine?

Would add a picture but not sure how to do it here??

I thought I was the only one :) It almost looked like Hindi or Arabic writing; strange enough with this update it doesn't pop up anymore. Plus a lot of the studder I would get for the left 4 dead 1 parts of the game are gone after using -vulkan.

Yeah that's it, i'm not sure when it started as i have not played in a long time, but after the update today i tried the -vulkan command and that dialog box came up, so i went back to GL and it still does it, I uninstalled the Game and deleted all L4D2 remains on my hard drive and reinstalled and made sure no add-on's were installed but it still comes up with that dialog box, so i not sure whats going on.
Julius 15 Jun
I think this is rather a preparation for Steam on Chromebooks as those will only support Vulkan and not OpenGL (maybe with Zink).
Lightkey 16 Jun
Quoting: JuliusI think this is rather a preparation for Steam on Chromebooks as those will only support Vulkan and not OpenGL (maybe with Zink).
I think Ehvis referred to the last ten points on the list.
furaxhornyx 16 Jun
View PC info
  • Supporter
QuoteTo do so: right click the game and go to Properties, ensure you're on the General tab on the left, then enter "-vulkan" (without quotes) in the Launch Options box.

Shouldn't this be
 
-vulkan %command%

?
MayeulC 16 Jun
Quoting: furaxhornyx
QuoteTo do so: right click the game and go to Properties, ensure you're on the General tab on the left, then enter "-vulkan" (without quotes) in the Launch Options box.

Shouldn't this be
 
-vulkan %command%

?

No, launch options are appended to the %command%, unless it's there. So you only need it in case you want to prefix the command with other options, like an environment variable. Here, either `%command% -vulkan` or `-vulkan` works.
MayeulC 16 Jun
I wish they also made it easier to play local split-screen. L4D2 hasn't seen much love since the early Steam-on-Linux days.
Faalagorn 16 Jun
I genuinely wonder how performance compares to OpenGL, as L4D2 was one of the well-performing ports back then: http://web.archive.org/web/20200504112412/http://blogs.valvesoftware.com/linux/faster-zombies/


Last edited by Faalagorn on 16 June 2021 at 11:27 pm UTC
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