XRFrame: getHitTestResultsForTransientInput() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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

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

The getHitTestResultsForTransientInput() method of the XRFrame interface returns an array of XRTransientInputHitTestResult objects containing transient input hit test results for a given XRTransientInputHitTestSource.

Syntax

js
getHitTestResultsForTransientInput(hitTestSource)

Parameters

hitTestSource

An XRTransientInputHitTestSource object that contains transient input hit test subscriptions.

Return value

An array of XRTransientInputHitTestResult objects.

Examples

Getting transient input hit test results

To request a transient input hit test source, start an XRSession with the hit-test session feature enabled. Next, request the hit test source with XRSession.requestHitTestSourceForTransientInput() and store it for later use in the frame loop. Finally, call getHitTestResultsForTransientInput() to obtain the result.

js
const xrSession = navigator.xr.requestSession("immersive-ar", {
  requiredFeatures: ["local", "hit-test"],
});

let transientHitTestSource = null;
xrSession
  .requestHitTestSourceForTransientInput({
    profile: "generic-touchscreen",
    offsetRay: new XRRay(),
  })
  .then((touchScreenHitTestSource) => {
    transientHitTestSource = touchScreenHitTestSource;
  });

// frame loop
function onXRFrame(time, xrFrame) {
  let hitTestResults = xrFrame.getHitTestResultsForTransientInput(
    transientHitTestSource,
  );
  // do things with the transient hit test results
}

Specifications

Specification
WebXR Hit Test Module
# dom-xrframe-gethittestresultsfortransientinput

Browser compatibility

BCD tables only load in the browser

See also