XRFrame: getDepthInformation() method

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

The getDepthInformation() method of the XRFrame interface returns an XRCPUDepthInformation object containing CPU depth information for the active and animated frame.

Syntax

getDepthInformation(view)

Parameters

view

An XRView object obtained from a viewer pose.

Return value

An XRCPUDepthInformation object.

Exceptions

NotSupportedError DOMException

Thrown if "depth-sensing" is not in the list of enabled features for this XRSession.

InvalidStateError DOMException

Thrown if:

  • the XRFrame is not active nor animated. Obtaining depth information is only valid within the requestAnimationFrame() callback.
  • the session's depthUsage is not "cpu-optimized".

Examples

Obtaining CPU depth information

// Make sure to request a session with depth-sensing enabled
const session = navigator.xr.requestSession("immersive-ar", {
  requiredFeatures: ["depth-sensing"],
  depthSensing: {
    usagePreference: ["cpu-optimized", "gpu-optimized"],
    formatPreference: ["luminance-alpha", "float32"]
  }
});

// …

// Obtain depth information in an active and animated frame
function rafCallback(time, frame) {
  session.requestAnimationFrame(rafCallback);
  const pose = frame.getViewerPose(referenceSpace);
  if (pose) {
    for (const view of pose.views) {
      const depthInformation = frame.getDepthInformation(view);
      if (depthInformation) {
        // Do something with the depth information
        renderDepth(depthInformation);
      }
    }
  }
}

Specifications

Specification
WebXR Depth Sensing Module
# dom-xrframe-getdepthinformation

Browser compatibility

BCD tables only load in the browser