WebGLSync

{{APIRef("WebGL")}} {{AvailableInWorkers}} 

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

{{InheritanceDiagram}} 

When working with WebGLSync objects, the following methods of the {{domxref("WebGL2RenderingContext")}}  are useful:

• {{domxref("WebGL2RenderingContext.fenceSync()")}} 
• {{domxref("WebGL2RenderingContext.deleteSync()")}} 
• {{domxref("WebGL2RenderingContext.isSync()")}} 
• {{domxref("WebGL2RenderingContext.clientWaitSync()")}} 
• {{domxref("WebGL2RenderingContext.waitSync()")}} 
• {{domxref("WebGL2RenderingContext.getSyncParameter()")}} 

Examples

Creating a WebGLSync object

in this example, gl must be a {{domxref("WebGL2RenderingContext")}} . WebGLSync objects are not available in WebGL 1.

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

Specifications

{{Specifications}} 

Browser compatibility

{{Compat}} 

See also

• {{domxref("WebGLRenderingContext.finish()")}}