VRDisplay.requestAnimationFrame()

实验性: 这是一项实验性技术
在将其用于生产之前,请仔细检查浏览器兼容性表格

The requestAnimationFrame() method of the VRDisplay interface is a special implementation of Window.requestAnimationFrame containing a callback function that will be called every time a new frame of the VRDisplay presentation is rendered:

  • When the VRDisplay is not presenting a scene, this is functionally equivalent to Window.requestAnimationFrame.
  • When the VRDisplay is presenting, the callback is called at the native refresh rate of the VRDisplay.

Syntax

js
var handle = vrDisplayInstance.requestAnimationFrame(callback);

Parameters

callback

A callback function that will be called every time a new frame of the VRDisplay presentation is rendered.

Return value

A long representing the handle of the requestAnimationFrame() call. This can then be passed to a VRDisplay.cancelAnimationFrame() call to unregister the callback.

Examples

TBD.

Specifications

该 API 在旧的 WebVR API(已被 WebXR Device API 取代)中定义。它不再有望成为标准。

在所有浏览器都实现新的 WebXR API 之前,建议使用框架(如:A-FrameBabylon.jsThree.js)或 polyfill 来开发适用于所有浏览器的 WebXR 应用程序。[1]

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
requestAnimationFrame
DeprecatedNon-standard

Legend

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Full support
Full support
No support
No support
Non-standard. Check cross-browser support before using.
Deprecated. Not for use in new websites.
See implementation notes.
User must explicitly enable this feature.
Has more compatibility info.

See also