ox is a new lightweight and cross-platform OpenXR runtime built for automated testing.
Test OpenXR applications automatically using a virtual OpenXR device. Useful during development and CI testing.
It runs on Windows, Linux, and Mac, and supports OpenGL, Vulkan and Metal.
You can control a virtual XR device programmatically (e.g. press a button, move the headset, read screen texture etc), and integrate it with your existing test framework and code.
ox simulates Meta Quest, HTC Vive Trackers, Valve Index and other popular headsets.
Warning
WORK-IN-PROGRESS - ox is still heavily under-development and is not (yet) fully compliant with the OpenXR spec.
Click to use ox for:
- Automated Testing - Use virtual XR devices inside your application and test framework. Useful for automated testing (including CI runners).
- GUI - Preview the headset's output and control the devices visually in a GUI window. Useful for development and live testing.
- REST API - Control the virtual XR device over HTTP. Useful for agentic development, or when you can't use the in-process API.
See the releases page for more fine-grained releases.
- 2026/06/30 - v0.7 - released a regression test suite for Blender's XR API. [more...]
- 2026/05/21 - v0.7 - ox now has a Python wrapper for easier in-process testing. [more...]
- 2026/04/09 - v0.6 - ox now supports XR testing fully within the application process (i.e. no IPC). Also releases a re-designed GUI, and additional release formats: dmg, Windows Installer, AppImage, flatpak and snap.
- 2026/03/10 - v0.5 - ox now supports Metal, and live preview in the Simulator GUI window.
- 2026/01/31 - v0.4 - ox now supports Vulkan (versions 1.0 to 1.3).
- 2026/01/28 - v0.3 - First public version of ox released, with a simulator GUI and REST API. Supports OpenGL on Windows, Linux and macOS.