Merge branch 'xrizer' into 'main'

Add xrizer wiki page

See merge request lvra/lvra.gitlab.io!96

content/docs/fossvr/_index.md

@@ -12,7 +12,7 @@ If you want an alternative to SteamVR, there are a few options you can use, depe
 
 In either case, here are some related projects you might want to check out:
 
-- [OpenComposite](/docs/fossvr/opencomposite/) allows you to run OpenVR games
+- [xrizer](/docs/fossvr/xrizer/) and [OpenComposite](/docs/fossvr/opencomposite/) allow you to run OpenVR games
 - [Envision](/docs/fossvr/envision/) is a GUI to setup and run either Monado or WiVRn
 - [Stardust XR](/docs/fossvr/stardust/) is an XR environment to run 2D and (eventually) 3D apps
 - [WlxOverlay-S](/docs/fossvr/wlxoverlay-s/) is an overlay to access your desktop from VR + playspace mover

content/docs/fossvr/wivrn/_index.md

@@ -11,7 +11,7 @@ title: WiVRn
 
 > WiVRn wirelessly connects a standalone VR headset to a Linux computer. You can then play PCVR games on the headset while processing is done on the computer.
 
-WiVRn is based on [Monado](/docs/fossvr/monado/) and can be used with [OpenComposite](/docs/fossvr/opencomposite/) or [xrizer](https://github.com/Supreeeme/xrizer) to support a majority of titles available for SteamVR. A wide range of standalone headsets are supported.
+WiVRn is based on [Monado](/docs/fossvr/monado/) and can be used with [xrizer](/docs/fossvr/xrizer/) or [OpenComposite](/docs/fossvr/opencomposite/) to support a majority of titles available for SteamVR. A wide range of standalone headsets are supported.
 
 ## Installing WiVRn
 

content/docs/fossvr/xrizer.md

@@ -0,0 +1,58 @@
+---
+weight: 300
+title: xrizer
+---
+
+# xrizer
+- [xrizer Git repository](https://github.com/Supreeeme/xrizer)
+
+> xrizer is a reimplementation of OpenVR on top of OpenXR. This enables you to run OpenVR games through any OpenXR runtime without running SteamVR.
+
+{{% hint warning %}}
+**Application developers**: The OpenVR implementation is incomplete and contains only what's necessary to run most games for compatibility and may omit certain information - if you plan to implement software, utilize the [OpenXR API](https://registry.khronos.org/OpenXR/specs/1.0/html/xrspec.html).
+{{% /hint %}}
+
+## Using full body trackers
+
+{{% hint warning %}}
+**This branch is a work-in-progress!** Unexpected problems may occur while in use, if you encounter issues while using this fork you should not report it upstream unless reproducible on the `main` branch of xrizer.
+
+If you would like a battle-tested solution, see [OpenComposite](/docs/fossvr/opencomposite/).
+{{% /hint %}}
+
+Currently xrizer does not support full body tracking, however there is a **work-in-progress** [fork by RinLovesYou](https://github.com/RinLovesYou/xrizer/tree/experimental2) with support while using Monado.
+
+To use the above fork, follow these steps:
+
+### Envision
+- Click the three dots next to the profile selector and select 'Edit profile'
+- If a popup asks if you would like to duplicate the profile, click yes.
+- Scroll down to 'OpenVR Compatibility' and set the following fields:
+  - OpenVR Compatibility Repo: `https://github.com/RinLovesYou/xrizer.git`
+  - OpenVR Compatibility Branch: `experimental2`
+- Clean build your profile from the menu at the top right, or use the Ctrl+F5 keybind.
+
+### NixOS
+Apply an overlay over nixpkgs to override the xrizer src:
+
+```nix
+{
+  nixpkgs.overlays = [
+    (final: prev: {
+      xrizer = prev.xrizer.overrideAttrs {
+        src = final.fetchFromGitHub {
+          owner = "RinLovesYou";
+          repo = "xrizer";
+          # IMPORTANT: Fill the below field with the latest commit hash from https://github.com/RinLovesYou/xrizer/commits/experimental2 (click the Copy full SHA button on the right side)
+          rev = "";
+          # IMPORTANT: Replace the below field with the correct hash, the error when building with this empty will give you the expected hash.
+          hash = "";
+        };
+      };
+    })
+  ];
+}
+```
+
+## Rebinding controls
+The process is mostly the same as [OpenComposite](/docs/fossvr/opencomposite/#rebinding-controls), but replace the `OpenComposite` directory name with `xrizer`.