This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
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.
This interface is accessible through the VRDisplay.getEyeParameters()
method.
VREyeParameters.offset
Read only
VREyeParameters.fieldOfView
Read only
VREyeParameters.renderWidth
Read only
VREyeParameters.renderHeight
Read only
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(); }); }); });
Specification | Status | Comment |
---|---|---|
WebVR 1.1 The definition of 'VREyeParameters' in that specification. | Editor's Draft | Initial definition |
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | Yes1 2 | Yes |
553 584 |
No | ? | ? |
fieldOfView |
Yes1 2 | Yes |
553 584 |
No | ? | ? |
maximumFieldOfView |
No | No |
553 584 |
No | ? | ? |
minimumFieldOfView |
No | No |
553 584 |
No | ? | ? |
offset |
Yes1 2 | Yes |
553 584 |
No | ? | ? |
recommendedFieldOfView |
No | No | No | No | ? | ? |
renderHeight |
Yes1 2 | Yes |
553 584 |
No | ? | ? |
renderRect |
No | No | No | No | ? | ? |
renderWidth |
Yes1 2 | Yes |
553 584 |
No | ? | ? |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | No | Yes5 | ? | ? | No | ? | ? |
fieldOfView |
No | Yes5 | ? | ? | No | ? | ? |
maximumFieldOfView |
No | No | No | ? | No | ? | ? |
minimumFieldOfView |
No | No | No | ? | No | ? | ? |
offset |
No | Yes5 | ? | ? | No | ? | ? |
recommendedFieldOfView |
No | No | No | ? | No | ? | ? |
renderHeight |
No | Yes5 | ? | ? | No | ? | ? |
renderRect |
No | No | No | ? | No | ? | ? |
renderWidth |
No | Yes5 | ? | ? | No | ? | ? |
1. Only works on desktop in an experimental version of Chrome (other builds won't return any devices when Navigator.getVRDisplays()
is invoked).
2. This feature is behind the WebVR
preference. To change preferences in Chrome, visit chrome://flags.
3. Windows support was enabled in Firefox 55.
4. macOS support was enabled in Firefox 58.
5. Currently supported only by Google Daydream.
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/VREyeParameters