This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
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:
WebGL2RenderingContext.fenceSync()WebGL2RenderingContext.deleteSync()WebGL2RenderingContext.isSync()WebGL2RenderingContext.clientWaitSync()WebGL2RenderingContext.waitSync()WebGL2RenderingContext.getSyncParameter()WebGLSync objectin 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);
| Specification | Status | Comment |
|---|---|---|
| WebGL 2.0 The definition of 'WebGLSync' in that specification. | Editor's Draft | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 56 | No | 51 | No | 43 | No |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 58 | 58 | No | 51 | 43 | No | 7.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/WebGLSync