This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The OffscreenCanvas() constructor returns a newly instantiated OffscreenCanvas object.
new OffscreenCanvas(width, height);
widthheightCreating a new offscreen canvas and initializing a WebGL context on it:
var offscreen = new OffscreenCanvas(256, 256);
var gl = offscreen.getContext("webgl");
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'OffscreenCanvas()' in that specification. | Living Standard |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | No support | 46 (46) [1] | No support | No support | No support |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | No support | 46.0 (46) [1] | No support | No support | No support |
[1] This feature is behind a feature preference setting. In about:config, set gfx.offscreencanvas.enabled to true.
OffscreenCanvas, the interface this constructor belongs to.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas/OffscreenCanvas