VRDisplayCapabilities.canPresent
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 canPresent read-only property of the VRDisplayCapabilities interface returns a Boolean stating whether the VR display is capable of presenting content (e.g. through an HMD).
This is useful for identifying "magic window" devices that are capable of 6DoF tracking but for which VRDisplay.requestPresent() is not meaningful. If canPresent is false, calls to VRDisplay.requestPresent() will fail, and VRDisplay.getEyeParameters() will return null.
Syntax
var canIPresent = vrDisplayCapabilitiesInstance.<code>canPresent</code>;
Value
A Boolean.
Examples
TBD.
Specifications
| Specification | Status | Comment |
|---|---|---|
| WebVR The definition of 'canPresent' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | No support | No support | No support |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|
| Basic support | No support | (Yes) | No support | No support | No support | No support |
See also
- WebVR API homepage.
- MozVr.com — demos, downloads, and other resources from the Mozilla VR team.
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/vrdisplaycapabilities/canpresent