WebGLRenderingContext.canvas

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

WebGLRenderingContext.canvas 只读属性,对 HTMLCanvasElementOffscreenCanvas 对象的引用。如果绘图上下文没有相关联的 <canvas> 元素或 OffscreenCanvas 对象,值为 null

语法

gl.canvas;

返回值

示例

Canvas 元素

指定 <canvas> 元素:

html
<canvas id="canvas"></canvas>

你可以通过 canvas 得到一个从 WebGLRenderingContext 返回的引用:

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

离屏 Canvas

下面是一个使用试验阶段 OffscreenCanvas 对象的示例:

js
var offscreen = new OffscreenCanvas(256, 256);
var gl = offscreen.getContext("webgl");
gl.canvas; // OffscreenCanvas

规范

Specification
WebGL Specification
# DOM-WebGLRenderingContext-canvas

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
canvas

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

相关链接