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VREyeParameters

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 VREyeParameters interface of the WebVR API represents all the information required to correctly render a scene for a given eye, including field of view information.

Note: This interface was part of the old WebVR API. It has been superseded by the WebXR Device API.

This interface is accessible through the VRDisplay.getEyeParameters() method.

Warning: The values in this interface should not be used to compute view or projection matrices. In order to ensure the widest possible hardware compatibility use the matrices provided by VRFrameData.

Properties

VREyeParameters.offset Read only

Represents the offset from the center point between the user's eyes to the center of the eye, measured in meters.

VREyeParameters.fieldOfView Read only

Describes the current field of view for the eye, which can vary as the user adjusts their interpupillary distance (IPD).

VREyeParameters.renderWidth Read only

Describes the recommended render target width of each eye viewport, in pixels.

VREyeParameters.renderHeight Read only

Describes the recommended render target height of each eye viewport, in pixels.

Examples

navigator.getVRDisplays().then(function(displays) {
  // If a display is available, use it to present the scene
  vrDisplay = displays[0];
  console.log('Display found');
  // Starting the presentation when the button is clicked:
  //   It can only be called in response to a user gesture
  btn.addEventListener('click', function() {
    vrDisplay.requestPresent([{ source: canvas }]).then(function() {
      console.log('Presenting to WebVR display');

      // Set the canvas size to the size of the vrDisplay viewport

      var leftEye = vrDisplay.getEyeParameters('left');
      var rightEye = vrDisplay.getEyeParameters('right');

      canvas.width = Math.max(leftEye.renderWidth, rightEye.renderWidth) * 2;
      canvas.height = Math.max(leftEye.renderHeight, rightEye.renderHeight);

      drawVRScene();
    });
  });
});

Specifications

This interface was part of the old WebVR API that has been superseded by the WebXR Device API. It is no longer on track to becoming a standard.

Until all browsers have implemented the new WebXR APIs, it is recommended to rely on frameworks, like A-Frame, Babylon.js, or Three.js, or a polyfill, to develop WebXR applications that will work across all browsers [1].

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
VREyeParameters
No
15-79
98
64-98
macOS support was enabled in Firefox 64.
55-98
Windows support was enabled in Firefox 55.
No
No
No
No
56-80
["Only works in an experimental version of Chrome. (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)", "Daydream View supported in Chrome 56.", "Google Cardboard supported in Chrome 57."]
55-98
No
No
6.0
Google Cardboard supported in Samsung Internet 7.0.
fieldOfView
No
15-79
98
64-98
macOS support was enabled in Firefox 64.
55-98
Windows support was enabled in Firefox 55.
No
No
No
No
56-80
["Only works in an experimental version of Chrome. (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)", "Daydream View supported in Chrome 56.", "Google Cardboard supported in Chrome 57."]
55-98
No
No
6.0
Google Cardboard supported in Samsung Internet 7.0.
maximumFieldOfView
No
No
98
64-98
macOS support was enabled in Firefox 64.
55-98
Windows support was enabled in Firefox 55.
No
No
No
No
No
55-98
No
No
No
minimumFieldOfView
No
No
98
64-98
macOS support was enabled in Firefox 64.
55-98
Windows support was enabled in Firefox 55.
No
No
No
No
No
55-98
No
No
No
offset
No
15-79
98
64-98
macOS support was enabled in Firefox 64.
55-98
Windows support was enabled in Firefox 55.
No
No
No
No
56-80
["Only works in an experimental version of Chrome. (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)", "Daydream View supported in Chrome 56.", "Google Cardboard supported in Chrome 57."]
55-98
No
No
6.0
Google Cardboard supported in Samsung Internet 7.0.
recommendedFieldOfView
No
No
No
No
No
No
No
No
No
No
No
No
renderHeight
No
15-79
98
64-98
macOS support was enabled in Firefox 64.
55-98
Windows support was enabled in Firefox 55.
No
No
No
No
56-80
["Only works in an experimental version of Chrome. (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)", "Daydream View supported in Chrome 56.", "Google Cardboard supported in Chrome 57."]
55-98
No
No
6.0
Google Cardboard supported in Samsung Internet 7.0.
renderRect
No
No
No
No
No
No
No
No
No
No
No
No
renderWidth
No
15-79
98
64-98
macOS support was enabled in Firefox 64.
55-98
Windows support was enabled in Firefox 55.
No
No
No
No
56-80
["Only works in an experimental version of Chrome. (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.)", "Daydream View supported in Chrome 56.", "Google Cardboard supported in Chrome 57."]
55-98
No
No
6.0
Google Cardboard supported in Samsung Internet 7.0.

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/VREyeParameters

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Last Updated 2022-04-27T09:33:08Z