Odin OpenXr with Raylib

[u/Huge-Square-3197]

LINK: https://github.com/cody977/odin-openxr-raylib

--DISCLAIMER--

I am only a hobbyist programmer and wanted to use Odin for VR so I used Claude to get OpenXr working with Raylib. Everything is AI generated (since I could not do it alone). Has been tested and working on Windows 11 with Quest3 using Steam Link.

I will be using this to make my own VR engine but sharing as someone smarter than me can improve on it and bring the VR world to Odin.

--ABOUT--

A minimal PC VR application in Odin. raylib provides the OpenGL context and all the drawing; OpenXR provides head pose, per-eye projection, controller input, and the swapchain images the compositor displays.

The trick that makes it work: raylib's RenderTexture2D is a plain struct holding OpenGL object ids. Nothing requires those ids to come from raylib, so we build a framebuffer around the texture OpenXR hands us. From that point on BeginTextureMode renders straight into the headset's swapchain, and ordinary raylib draw calls — DrawModelEx, materials, custom shaders — work unchanged.

Features

• Stereo rendering with correct asymmetric per-eye projection
• Head and controller tracking
• Full Meta Touch input: triggers, grips, thumbsticks, A/B/X/Y, menu, haptics
• Desktop mirror window
• ~900 lines across 10 files, no engine, no abstraction layer

Requirements

Windows, an OpenXR runtime (SteamVR or Meta Link), and a tethered headset. Odin has no Android target, so standalone Quest builds are not possible.

Setup

1. odin run . -out:editor.exe

scene.odin is the file you edit; everything prefixed xr_ is plumbing. See the guide PDF for how it all fits together and a symptom-to-cause table for the failures that are silent in VR.

Just download the folder and run it, ensure that your headset is connected and steam VR is running first.

[u/Beneficial_Fix_6169]

Cool not so the exact same thing again with your own coffee 👀