WebGLSync

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 WebGLSync interface is part of the WebGL 2 API and is used to synchronize activities between the GPU and the application.

When working with WebGLSync objects, the following methods of the WebGL2RenderingContext are useful:

Examples

Creating a WebGLSync object

in this example, gl must be a WebGL2RenderingContext. WebGLSync objects are not available in WebGL 1.

var sync = gl.fenceSync(gl.SYNC_GPU_COMMANDS_COMPLETE, 0);

Specifications

Specification Status Comment
WebGL 2.0
The definition of 'WebGLSync' in that specification.
Editor's Draft Initial definition.

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari Servo
Basic SupportNo support1No support51.0No supportNo supportNo supportNo support
Feature Android Chrome for Android Edge Mobile Firefox for Android IE Mobile Opera Mobile Safari Mobile
Basic SupportNo supportNo supportNo supportNo supportNo supportNo supportNo support

1. To use an experimental implementation of WebGL 2 in Chrome, you have to start Chrome with the runtime flag --enable-unsafe-es3-apis.

See also

Document Tags and Contributors

 Contributors to this page: teoli, fscholz
 Last updated by: teoli,