XRHitTestSource
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The XRHitTestSource
interface of the WebXR Device API handles hit test subscriptions. You can get an XRHitTestSource
object by using the XRSession.requestHitTestSource()
method.
This object doesn't itself contain hit test results, but it is used to compute hit tests for each XRFrame
by calling XRFrame.getHitTestResults()
, which returns XRHitTestResult
objects.
Properties
None.
Methods
XRHitTestSource.cancel()
-
Unsubscribes from the hit test.
Examples
Getting an XRHitTestSource
object for a session
Call XRSession.requestHitTestSource()
to get a hit test source.
const xrSession = navigator.xr.requestSession("immersive-ar", {
requiredFeatures: ["local", "hit-test"]
});
let hitTestSource = null;
xrSession.requestHitTestSource({
space : viewerSpace, // obtained from xrSession.requestReferenceSpace("viewer");
offsetRay : new XRRay({y: 0.5})
}).then((viewerHitTestSource) => {
hitTestSource = viewerHitTestSource;
});
// frame loop
function onXRFrame(time, xrFrame) {
let hitTestResults = xrFrame.getHitTestResults(hitTestSource);
// do things with the hit test results
}
Unsubscribe from hit test
To unsubscribe from a hit test source, call XRHitTestSource.cancel()
. Since the object will no longer be usable, you can clean up and set the XRHitTestSource
object to null
.
hitTestSource.cancel();
hitTestSource = null;
Specifications
Specification |
---|
WebXR Hit Test Module # hit-test-source-interface |
Browser compatibility
BCD tables only load in the browser