WebGL2RenderingContext: fenceSync() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.
Note: This feature is available in Web Workers.
The WebGL2RenderingContext.fenceSync() method of the WebGL 2 API creates a new
WebGLSync object and inserts it into the GL command stream.
Syntax
js
fenceSync(condition, flags)
Parameters
condition-
A
GLenumspecifying the condition that must be met to set the sync object's state to signaled. Must begl.SYNC_GPU_COMMANDS_COMPLETE. flags-
A
GLbitfieldspecifying a bitwise combination of flags controlling the behavior of the sync object. Must be0(exists for extensions only).
Return value
A WebGLSync object.
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);
Specifications
| Specification |
|---|
| WebGL 2.0 Specification # 3.7.14 |
Browser compatibility
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