WebGLQuery

The WebGLQuery interface is part of the WebGL 2 API and provides ways to asynchronously query for information. By default, occlusion queries and primitive queries are available.

Another kind of queries are disjoint timer queries, which allow you to measure performance and profiling of your GPU. Disjoint timer queries are available with the EXT_disjoint_timer_query extension only.

When working with WebGLQuery objects, the following methods of the WebGL2RenderingContext are useful:

Examples

Creating a WebGLQuery object

in this example, gl must be a WebGL2RenderingContext. WebGLQuery objects are not available in WebGL 1.

var query = gl.createQuery();

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
WebGLQuery
56
79
51
No
43
No
58
58
51
43
No
7.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/WebGLQuery