VR: Difference between revisions - Official NixOS Wiki

(3 intermediate revisions by 3 users not shown)

Line 148:

autoStart = true;

# ~~Config for WiVRn~~ (https://github.com/WiVRn/WiVRn/blob/master/docs/configuration.md)

# If you're running this with an nVidia GPU and want to use GPU Encoding (and don't otherwise have CUDA enabled system wide), you need to override the cudaSupport variable.

~~config = {~~

package = (pkgs.wivrn.override { cudaSupport = true; });

~~enable = true;~~

~~json = {~~

# You should use the default configuration (which is no configuration), as that works the best out of the box.

~~# 1~~.~~0x foveation scaling~~

# However, if you need to configure something see https://github.com/WiVRn/WiVRn/blob/master/docs/configuration.md for configuration options and https://mynixos.com/nixpkgs/option/services.wivrn.config.json for an example configuration.

~~scale = 1~~.0;

};|name=configuration.nix|lang=nix}}

~~# 100 Mb/s~~

~~bitrate = 100000000;~~

~~encoders = [~~

{

~~encoder = "vaapi";~~

~~codec = "h265";~~

~~# 1~~.~~0 x 1~~.~~0 scaling~~

~~width = 1~~.0;

~~height = 1.0~~;

~~offset_x~~ = 0.0;

~~offset_y~~ = ~~0.0;~~

}

];

};

};}}

Line 233:

Line 217:

It is also possible to just patch amdgpu and build it as an out-of-tree module, as described in [[Linux_kernel#Patching_a_single_In-tree_kernel_module]]

=== Patching bubblewrap to allow capabilities ===

=== Patching bubblewrap to allow capabilities ===

By modifying the bubblewrap binary used for running Steam, you can allow processes in that FHS environment to acquire capabilities. This removes the need for patching the kernel directly.

</translate>

{{Warning|<translate>This circumvents an intended security mechanism in bubblewrap, and allows all other software launched by steam, or running via steam-run to acquire these capabilities as well.</translate>}}

{{Warning|<translate> This circumvents an intended security mechanism in bubblewrap, and allows all other software launched by steam, or running via steam-run to acquire these capabilities as well.</translate>}}

{{file|/etc/nixos/configuration.nix|nix|3=programs.steam = let

Line 278:

Line 263:

as an additional change, you may also need to replace Steam's own bwrap binary with a symbolic link to this modified bwrap binary, found at <code>~/.local/share/Steam/ubuntu12_32/steam-runtime/usr/libexec/steam-runtime-tools-0/srt-bwrap</code>.

Steam will periodically replace this modification with its own binary when steam-runtime updates, so you may need to re-apply this change if it breaks.

Line 294:

Line 281:

{{Commands|

# <translate>Run wlx-overlay-s and replace any running instance</translate>

# <translate> Run wlx-overlay-s and replace any running instance</translate>

$ wlx-overlay-s --replace}}

Line 303:

Line 290:

* [https://lvra.gitlab.io Linux VR Adventures Wiki]

[[Category:Video]]

[[Category:Hardware]]

@@ Line 148: / Line 148: @@
    autoStart = true;
-   # Config for WiVRn (https://github.com/WiVRn/WiVRn/blob/master/docs/configuration.md)
+   # If you're running this with an nVidia GPU and want to use GPU Encoding (and don't otherwise have CUDA enabled system wide), you need to override the cudaSupport variable.
-  config = {
+  package = (pkgs.wivrn.override { cudaSupport = true; });
-    enable = true;
-    json = {
+  # You should use the default configuration (which is no configuration), as that works the best out of the box.
-      # 1.0x foveation scaling
+  # However, if you need to configure something see https://github.com/WiVRn/WiVRn/blob/master/docs/configuration.md for configuration options and https://mynixos.com/nixpkgs/option/services.wivrn.config.json for an example configuration.
-      scale = 1.0;
+};|name=configuration.nix|lang=nix}}
-      # 100 Mb/s
-      bitrate = 100000000;
-      encoders = [
-        {
-          encoder = "vaapi";
-          codec = "h265";
-          # 1.0 x 1.0 scaling
-          width = 1.0;
-          height = 1.0;
-          offset_x = 0.0;
-          offset_y = 0.0;
-        }
-      ];
-    };
-  };
-};}}
 <translate>
@@ Line 233: / Line 217: @@
 It is also possible to just patch amdgpu and build it as an out-of-tree module, as described in [[Linux_kernel#Patching_a_single_In-tree_kernel_module]]
-=== Patching bubblewrap to allow capabilities ===
+=== Patching bubblewrap to allow capabilities === <!--T:43-->
+<!--T:44-->
 By modifying the bubblewrap binary used for running Steam, you can allow processes in that FHS environment to acquire capabilities. This removes the need for patching the kernel directly.
 </translate>
-{{Warning|<translate>This circumvents an intended security mechanism in bubblewrap, and allows all other software launched by steam, or running via steam-run to acquire these capabilities as well.</translate>}}
+{{Warning|<translate><!--T:45--> This circumvents an intended security mechanism in bubblewrap, and allows all other software launched by steam, or running via steam-run to acquire these capabilities as well.</translate>}}
 {{file|/etc/nixos/configuration.nix|nix|3=programs.steam = let
@@ Line 278: / Line 263: @@
 <translate>
+<!--T:46-->
 as an additional change, you may also need to replace Steam's own bwrap binary with a symbolic link to this modified bwrap binary, found at <code>~/.local/share/Steam/ubuntu12_32/steam-runtime/usr/libexec/steam-runtime-tools-0/srt-bwrap</code>.
+<!--T:47-->
 Steam will periodically replace this modification with its own binary when steam-runtime updates, so you may need to re-apply this change if it breaks.
@@ Line 294: / Line 281: @@
 {{Commands|
-# <translate>Run wlx-overlay-s and replace any running instance</translate>
+# <translate><!--T:48--> Run wlx-overlay-s and replace any running instance</translate>
 $ wlx-overlay-s --replace}}
@@ Line 303: / Line 290: @@
 * [https://lvra.gitlab.io Linux VR Adventures Wiki]
+<!--T:49-->
 [[Category:Video]]
 [[Category:Hardware]]