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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The VRLayerInit
interface (dictionary) of the WebVR API represents a content layer (an HTMLCanvasElement
or OffscreenCanvas
) that you want to present in a VR display.
You can retrieve VRLayerInit
objects using VRDisplay.getLayers()
, and present them using the VRDisplay.requestPresent()
method.
Properties
VRLayerInit.leftBounds
- Defines the left texture bounds of the canvas whose contents will be presented by the
VRDisplay
. VRLayerInit.rightBounds
- Defines the right texture bounds of the canvas whose contents will be presented by the
VRDisplay
. VRLayerInit.source
- Defines the canvas whose contents will be presented by the
VRDisplay
whenVRDisplay.submitFrame()
is called.
Examples
// currently returns an empty array var layers = vrDisplay.getLayers(); if(navigator.getVRDisplays) { console.log('WebVR 1.1 supported'); // Then get the displays attached to the computer navigator.getVRDisplays().then(function(displays) { // If a display is available, use it to present the scene if(displays.length > 0) { 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'); // Here it returns an array of VRLayerInit objects var layers = vrDisplay.getLayers(); ... }); }); } }); }
VRLayerInit
objects look something like this:
{ leftBounds : [ ... ], rightBounds: [ ... ], source: canvasReference }
Note: The canvasReference
refers to the <canvas>
element itself, not the WebGL context associated with the canvas. The other two members are arrays
Specifications
Specification | Status | Comment |
---|---|---|
WebVR 1.1 The definition of 'VRLayerInit' in that specification. |
Draft | Initial definition |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
VRLayerInit | Chrome No support No | Edge Full support Yes | Firefox
Full support
55
| IE No support No | Opera ? | Safari ? | WebView Android No support No | Chrome Android
Full support
56
| Firefox Android Full support 55 | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 6.0 |
leftBounds | Chrome No support No | Edge Full support Yes | Firefox
Full support
55
| IE No support No | Opera ? | Safari ? | WebView Android No support No | Chrome Android
Full support
56
| Firefox Android Full support 55 | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 6.0 |
rightBounds | Chrome No support No | Edge Full support Yes | Firefox
Full support
55
| IE No support No | Opera ? | Safari ? | WebView Android No support No | Chrome Android
Full support
56
| Firefox Android Full support 55 | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 6.0 |
source | Chrome No support No | Edge Full support Yes | Firefox
Full support
55
| IE No support No | Opera ? | Safari ? | WebView Android No support No | Chrome Android
Full support
56
| Firefox Android Full support 55 | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 6.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.
See also
- WebVR API homepage
- MozVr.com — demos, downloads, and other resources from the Mozilla VR team.