This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

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

The recommendedFieldOfView read-only property of the VREyeParameters interface describes the recommended field of view for the current eye β€” ideally based on user calibration.


var recFOV = myEyeParameters.recommendedFieldOfView;


A VRFieldOfView object.


The following example is taken from the Mozilla VR Team's threejs-vr-boilerplate code β€” to be precise, the VREffect.js file. Early on in the code the HMDVRDevice.getEyeParameters method is used to access information about each eye β€” VREyeParameters.eyeTranslation and VREyeParameters.recommendedFieldOfView β€” which are used for rendering calulations later on.

if ( vrHMD.getEyeParameters !== undefined ) {

    var eyeParamsL = vrHMD.getEyeParameters( 'left' );
    var eyeParamsR = vrHMD.getEyeParameters( 'right' );

    eyeTranslationL = eyeParamsL.eyeTranslation;
    eyeTranslationR = eyeParamsR.eyeTranslation;
    eyeFOVL = eyeParamsL.recommendedFieldOfView;
    eyeFOVR = eyeParamsR.recommendedFieldOfView;

} else {



Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera ? Safari No support NoWebView Android No support NoChrome Android No support NoFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android No support No


No support Β 
No support
Compatibility unknown Β 
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.

See also