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 sizeY read-only property of the VRStageParameters interface returns the depth of the play-area bounds in meters.
The bounds are defined as an axis-aligned rectangle on the floor, for safety purposes. Content should not require the user to move beyond these bounds; however, it is possible for the user to ignore the bounds resulting in position values outside of this rectangle. The center of the rectangle is at (0,0,0) in standing-space coordinates.
Syntax
var mySizeY = vrStageParametersInstance.sizeY;
Value
A float representing the depth in meters.
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 'sizeY' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | No support[1] | (Yes) | 55 (55)[2] | No support | No support | No support |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android | Samsung Internet for GearVR |
|---|---|---|---|---|---|---|---|---|
| Basic support | No support | No support | 55.0 (55) | No support | No support | No support | (Yes)[3] | (Yes) |
[1] API Available on all platforms behind a flag, but currently only works on desktop in an experimental version of Chrome (other builds won't return any devices when Navigator.getVRDisplays() is invoked).
[2] Currently only Windows support is enabled by default. Mac support is available in Firefox Nightly.
[3] Currently supported only by Google Daydream.
See also
- WebVR API homepage
- MozVr.com — demos, downloads, and other resources from the Mozilla VR team.