VRFieldOfViewReadOnly.downDegrees

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 downDegrees read-only property of the VRFieldOfViewReadOnly interface returns the number of degrees downwards that the field of view extends in.

Syntax

var myDownDegrees = VRFieldOfViewReadOnly.downDegrees;

Value

A double.

Examples

You wouldn't access this property directly from VRFieldOfViewReadOnly; to access this property from VRFieldOfView, you could do something like this:

var lEye = myHMDVRDevice.getEyeParameters('left');

lEye.recommendedFieldOfView.downDegrees
// returns something like 53.09438550469889

For some useful related examples, see the VRFieldOfView page.

Specifications

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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes)[1] 39 (39)[2] No support No support No support
Feature Android Firefox Mobile (Gecko) Firefox OS (Gecko) IE Phone Opera Mobile Safari Mobile Chrome for Android
Basic support No support 39.0 (39)[2]
44.0 (44)[3]
No support No support No support No support No support
  • [1] The support in Chrome is currently experimental. To find information on Chrome's WebVR implementation status including supporting builds, check out Bringing VR to Chrome by Brandon Jones.
  • [2] The support for this feature is currently disabled by default in Firefox. To enable WebVR support in Firefox Nightly/Developer Edition, you can go to about:config and enable the dom.vr* prefs. A better option however is to install the WebVR Enabler Add-on, which does this for you and sets up other necessary parts of the environment.
  • [3] The dom.vr* prefs are enabled by default at this point, in Nightly/Aurora editions.

See also

Document Tags and Contributors

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