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VRPose.angularVelocity

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

The angularVelocity read-only property of the VRPose interface returns an array representing the angular velocity vector of the VRDisplay at the current VRPose.timestamp, in radians per second.

In other words, the current velocity at which the sensor is rotating around the x, y, and z axes.

Syntax

var myAngularVelocity = VRPose.angularVelocity;

Value

A Float32Array, or null if the VR sensor is not able to provide angular velocity information.

Examples

// rendering loop for a VR scene
function drawVRScene() {
  // WebVR: Request the next frame of the animation
  vrSceneFrame = vrDisplay.requestAnimationFrame(drawVRScene);

  // Populate frameData with the data of the next frame to display
  vrDisplay.getFrameData(frameData);

  // Retrieve the angular velocity values for use in rendering
  // curFramePose is a VRPose object
  var curFramePose = frameData.pose;
  var angVel = curFramePose.angularVelocity;
  var avx = angVel[0];
  var avy = angVel[1];
  var avz = angVel[2];

  // render the scene
  ...

  // WebVR: submit the rendered frame to the VR display
  vrDisplay.submitFrame();
}

Specifications

Specification Status Comment
WebVR 1.1
The definition of 'angularVelocity' in that specification.
Editor's Draft Initial definition

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support Yes1 2 Yes

553

584

No ? ?
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support No Yes5 ? ? No ? ?

1. Only works on desktop in an experimental version of Chrome (other builds won't return any devices when Navigator.getVRDisplays() is invoked).

2. This feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.

3. Windows support was enabled in Firefox 55.

4. macOS support was enabled in Firefox 58.

5. Currently supported only by Google Daydream.

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/VRPose/angularVelocity