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EXT_disjoint_timer_query: queryCounterEXT() method

The EXT_disjoint_timer_query.queryCounterEXT() method of the WebGL API records the current time into the corresponding query object.

Syntax

js

queryCounterEXT(query, target)

Parameters

query

A WebGLQuery object for which to record the current time.

target

A GLenum specifying the target of the time query. Must be ext.TIMESTAMP_EXT.

Return value

None (undefined).

Examples

js

const ext = gl.getExtension("EXT_disjoint_timer_query");
const startQuery = ext.createQueryEXT();
const endQuery = ext.createQueryEXT();
ext.queryCounterEXT(startQuery, ext.TIMESTAMP_EXT);

// …

ext.queryCounterEXT(endQuery, ext.TIMESTAMP_EXT);

Specifications

Specification
WebGL EXT_disjoint_timer_query Extension Specification

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
queryCounterEXT
70Only supported on macOS.
47–65Removed due to the GLitch exploit.
79Only supported on macOS.
51–59Removed due to the GLitch exploit.
 No
57Only supported on macOS.
34–52Removed due to the GLitch exploit.
 No
47–65Removed due to the GLitch exploit.
47–65Removed due to the GLitch exploit.
 No
34–47Removed due to the GLitch exploit.
 No
5.0–9.0Removed due to the GLitch exploit.

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/EXT_disjoint_timer_query/queryCounterEXT