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 OffscreenCanvas()
constructor returns a newly instantiated OffscreenCanvas
object.
new OffscreenCanvas(width, height);
width
height
Creating 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 |
---|---|---|
WHATWG 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.
© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas/OffscreenCanvas