WebGL2RenderingContext: isSync() method

Note: This feature is available in Web Workers.

The WebGL2RenderingContext.isSync() method of the WebGL 2 API returns true if the passed object is a valid WebGLSync object.

Syntax

js
isSync(sync)

Parameters

sync

A WebGLSync object to test.

Return value

A GLboolean indicating whether the given object is a valid WebGLSync object (true) or not (false).

Examples

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

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

// …

gl.isSync(sync);

Specifications

See also