WebGL2RenderingContext.endQuery()

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The WebGL2RenderingContext.endQuery() method of the WebGL 2 API marks the end of a given query target.

Syntax

void gl.endQuery(target);

Parameters

target
A GLenum specifying the target of the query. Possible values:
  • gl.ANY_SAMPLES_PASSED: Specifies an occlusion query: these queries detect whether an object is visible (whether the scoped drawing commands pass the depth test and if so, how many samples pass).
  • gl.ANY_SAMPLES_PASSED_CONSERVATIVE: Same as above above, but less accurate and faster version.
  • gl.TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: Number of primitives that are written to transform feedback buffers.

Return value

None.

Examples

var query = gl.createQuery();
gl.beginQuery(gl.ANY_SAMPLES_PASSED, query);

// ...

gl.endQuery(gl.ANY_SAMPLES_PASSED); 

Specifications

Specification Status Comment
WebGL 2.0
The definition of 'endQuery' in that specification.
Editor's Draft Initial definition.
OpenGL ES 3.0
The definition of 'glEndQuery' in that specification.
Standard Man page of the (similar) OpenGL API.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support56 No51 No43 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic support5858 No51 No43 No

See also

Document Tags and Contributors

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