This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The sittingToStandingTransform
read-only property of the VRStageParameters
interface contains a matrix that transforms the sitting-space view matrices of VRFrameData
to standing-space.
Basically, this can be passed into your WebGL code to transform the rendered view from a sitting to standing view.
Syntax
var myTransform = vrStageParametersInstance.sittingToStandingTransform
;
Value
A 16-element Float32Array
containing the components of a 4×4 transform matrix.
Examples
var info = document.querySelector('p'); var vrDisplay; navigator.getVRDisplays().then(function(displays) { vrDisplay = displays[0]; var stageParams = vrDisplay.stageParameters; // stageParams is a VRStageParameters object if(stageParams === null) { info.textContent = 'Your VR Hardware does not support room-scale experiences.' } else { info.innerHTML = '<strong>Display stage parameters</strong>' + '<br>Sitting to standing transform: ' + stageParams.sittingToStandingTransform + '<br>Play area width (m): ' + stageParams.sizeX + '<br>Play area depth (m): ' + stageParams.sizeY } });
Specifications
Specification | Status | Comment |
---|---|---|
WebVR 1.1 The definition of 'sittingToStandingTransform' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 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 | ? | ? |
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.
See also
- WebVR API homepage
- MozVr.com — demos, downloads, and other resources from the Mozilla VR team.