WEBGL_lose_context.restoreContext()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

WEBGL_lose_context.restoreContext() 属于 WebGL API,一般用来模拟 WebGLRenderingContext 的上下文恢复。

语法

gl.getExtension('WEBGL_lose_context').restoreContext();

抛出错误

  • INVALID_OPERATION 上下文尚未丢失

示例

你可以用这个方法模拟 webglcontextrestored 事件:

js
var canvas = document.getElementById("canvas");
var gl = canvas.getContext("webgl");

canvas.addEventListener(
  "webglcontextrestored",
  function (e) {
    console.log(e);
  },
  false,
);

gl.getExtension("WEBGL_lose_context").restoreContext();

规范

Specification
WebGL WEBGL_lose_context Khronos Ratified Extension Specification

浏览器兼容性

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
restoreContext

Legend

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Full support
Full support
Requires a vendor prefix or different name for use.
Has more compatibility info.

相关链接