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VRPose.angularVelocity

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

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 (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support No support[1] (Yes) 55 (55)[2] No support No support No support
Feature Android Edge Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile Chrome for Android Samsung Internet for GearVR
Basic support No support No support 55.0 (55) No support No support No support (Yes)[3] (Yes)
 

[1] API Available on all platforms behind a flag, but currently only works on desktop in an experimental version of Chrome (other builds won't return any devices when Navigator.getVRDisplays() is invoked).

[2] Currently only Windows support is enabled by default. Mac support is available in Firefox Nightly.

[3] Currently supported only by Google Daydream.

See also

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, Sebastianz
 Last updated by: chrisdavidmills,