VRFieldOfView.upDegrees

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

Deprecated
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The upDegrees read-only property of the VRFieldOfView interface returns the number of degrees upwards that the field of view extends in.

Syntax

var myUpDegrees = VRFieldOfView.upDegrees;

Value

A double.

Examples

var info = document.querySelector('p');
var list = document.querySelector('ul');
var vrDisplay;

if(navigator.getVRDisplays) {
    reportFieldOfView();
} else {
  info.textContent = 'WebVR API not supported by this browser.'
}

function reportFieldOfView() {
  navigator.getVRDisplays().then(function(displays) {
    vrDisplay = displays[0];
    var lEye = vrDisplay.getEyeParameters('left');
    var rEye = vrDisplay.getEyeParameters('right');
    // lEye and rEye are VREyeParameters objects

    var lFOV = lEye.fieldOfView;
    var rFOV = rEye.fieldOfView;
    // lFOV and rFOV are VRFieldOfView objects

    var listitem1 = document.createElement('li');
    var listitem2 = document.createElement('li');

    listitem1.innerHTML = '<strong>Left eye parameters</strong>'
                 + '<br>Offset: ' + lEye.offset
                 + '<br>Render width: ' + lEye.renderWidth
                 + '<br>Render height: ' + lEye.renderHeight
                 + '<br>Up degrees: ' + lFOV.upDegrees
                 + '<br>Right degrees: ' + lFOV.rightDegrees
                 + '<br>Down degrees: ' + lFOV.downDegrees
                 + '<br>Left degrees: ' + lFOV.leftDegrees

   listitem2.innerHTML = '<strong>Right eye parameters</strong>'
                + '<br>Offset: ' + rEye.offset
                + '<br>Render width: ' + rEye.renderWidth
                + '<br>Render height: ' + rEye.renderHeight
                + '<br>Up degrees: ' + rFOV.upDegrees
                + '<br>Right degrees: ' + rFOV.rightDegrees
                + '<br>Down degrees: ' + rFOV.downDegrees
                + '<br>Left degrees: ' + rFOV.leftDegrees

    list.appendChild(listitem1);
    list.appendChild(listitem2);
  });
}

Specifications

Specification	Status	Comment
WebVR 1.1 The definition of 'upDegrees' in that specification.	Draft	Initial definition

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`upDegrees` ExperimentalDeprecated	Chrome No support No	Edge Full support 15	Firefox Full support 55 Notes Full support 55 Notes Notes Windows support was enabled in Firefox 55. Full support 64 Notes Notes macOS support was enabled in Firefox 64.	IE No support No	Opera ?	Safari ?	WebView Android No support No	Chrome Android Full support 56 Notes Disabled Full support 56 Notes Disabled Notes Only works in an experimental version of Chrome. (Other builds won't return any devices when `Navigator.getVRDisplays()` is invoked.) Notes Daydream View supported in Chrome 56. Notes Google Cardboard supported in Chrome 57. Disabled From version 56: this feature is behind the `WebVR` preference. To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 55	Opera Android ?	Safari iOS ?	Samsung Internet Android Full support 6.0

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown
Experimental. Expect behavior to change in the future.: Experimental. Expect behavior to change in the future.
Deprecated. Not for use in new websites.: Deprecated. Not for use in new websites.
See implementation notes.: See implementation notes.
User must explicitly enable this feature.: User must explicitly enable this feature.