The WebGLTimerQueryEXT interface is part of the WebGL EXT_disjoint_timer_query extension and exposes a timer query object.

WebGL extensions are available using the WebGLRenderingContext.getExtension() method. For more information, see also Using Extensions in the WebGL tutorial.

Availability: This extension is available to both, WebGL1 and WebGL2 contexts.

When working with WebGLTimerQueryEXT objects, the following methods of the EXT_disjoint_timer_query extension are useful:


var ext = gl.getExtension("EXT_disjoint_timer_query");
var query = ext.createQueryEXT(); // creates a WebGLTimerQueryEXT object


Specification Status Comment
The definition of 'EXT_disjoint_timer_query' in that specification.
Working Draft Initial definition.

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari Servo
Basic Support47?No support1????
Feature Android Chrome for Android Edge Mobile Firefox for Android IE Mobile Opera Mobile Safari Mobile
Basic Support?47?No support???

1. To enable it in Firefox 41 and later, you need to set the webgl.enable-draft-extensions preference to true.

See also

Document Tags and Contributors

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