VREyeParameters.eyeTranslation

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 eyeTranslation read-only property of the VREyeParameters interface represents the offset from the center of the user's head to the eye, measured in meters.

Syntax

var myEyeTranslation = myEyeParameters.eyeTranslation;

Value

A DOMPoint 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
WebVR The definition of 'eyeTranslation' in that specification.	Editor's Draft	Initial definition

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.

VREyeParameters.eyeTranslation

Syntax

Value

Examples

Specifications

Browser compatibility

See also

Document Tags and Contributors