/Web APIs


Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The XRLightProbe interface of the WebXR Device API contains lighting information at a given point in the user's environment. You can get an XRLighting object using the XRSession.requestLightProbe() method.

This object doesn't itself contain lighting values, but it is used to collect lighting states for each XRFrame. See XRLightEstimate for the estimated lighting values for an XRLightProbe.

EventTarget XRLightProbe

Instance properties


Event handler property for the reflectionchange event.

XRLightProbe.probeSpace Read only Experimental

An XRSpace tracking the position and orientation the lighting estimations are relative to.

Instance methods



reflectionchange Experimental

Fired each time the estimated reflection cube map changes. (This happens when the user moves around and the environment's lighting changes.)


Getting an XRLightProbe object for a session

Use the XRSession.requestLightProbe() method to get a light probe.

const lightProbe = await xrSession.requestLightProbe();

Getting a probe pose within an XRFrame

Pass the light probe's probeSpace to XRFrame.getPose() to get a light probe for a pose.

const probePose = xrFrame.getPose(lightProbe.probeSpace, xrReferenceSpace);

Using the reflectionchange event

Pass XRLightProbe to get a reflection cube map whenever the reflectionchange event fires. See also XRWebGLBinding.getReflectionCubeMap().

const glBinding = new XRWebGLBinding(xrSession, gl);
const lightProbe = await xrSession.requestLightProbe();
let glCubeMap = glBinding.getReflectionCubeMap(lightProbe);

lightProbe.addEventListener('reflectionchange', () => {
  glCubeMap = glBinding.getReflectionCubeMap(lightProbe);


Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
XRLightProbe 90 90 No No 76 No No 90 No 64 No 15.0
probeSpace 90 90 No No 76 No No 90 No 64 No 15.0
reflectionchange_event 90 90 No No 76 No No 90 No 64 No 15.0

See also

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