Guides
How to build things for WebXR: hit testing, hands and controllers, testing without a headset, performance.
Guides 5 min read
How to test a WebXR app without a headset
Emulate a headset in the browser with IWER: install it, move the headset and controllers from code, use a synthetic room for AR, record a session and replay it.
Guides 6 min read
Hand tracking or controllers in WebXR, and how to support both
How WebXR describes hands and controllers, what each can and cannot do, and how to write one React Three Fiber scene that works with either.

Guides 6 min read
WebXR hit testing: how to place objects on real surfaces
What a WebXR hit test is, how to request one, how to read its result, and a working reticle in React Three Fiber that places objects on floors and tables.
Guides 7 min read
A performance budget for WebXR on Quest 3
How much time a frame has in the Meta Quest Browser, how to find out whether the CPU or the GPU is the limit, and what to change in a React Three Fiber scene.