Obsolete
This feature is obsolete.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 — ideally based on user calibration.
Syntax
var recFOV = myEyeParameters.recommendedFieldOfView;
Value
A VRFieldOfView object.
Examples
The following example is taken from the Mozilla VR Team's threejs-vr-boilerplate code — to be precise, the VREffect.js file. Early on in the code the HMDVRDevice.getEyeParameters method is used to access information about each eye — VREyeParameters.eyeTranslation and VREyeParameters.recommendedFieldOfView — 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 {
...
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| Unknown The definition of 'recommendedFieldOfView' in that specification. |
Unknown | Initial definition |
Browser compatibility
We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!
| 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:configand enable thedom.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
- WebVR API homepage.
VRFieldOfView- MozVr.com — demos, downloads, and other resources from the Mozilla VR team.