EXT_disjoint_timer_query.beginQueryEXT()

The EXT_disjoint_timer_query.beginQueryEXT() method of the WebGL API starts a timer query.

Syntax

beginQueryEXT(target, query)

target: A GLenum specifying the target of the time query. Must be ext.TIME_ELAPSED_EXT.
query: A WebGLQuery object for which to start the time querying.

None.

var ext = gl.getExtension('EXT_disjoint_timer_query');
var query = ext.createQueryEXT();
ext.beginQueryEXT(ext.TIME_ELAPSED_EXT, query);

// ...

Specification
WebGL EXT_disjoint_timer_query Extension Specification

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`beginQueryEXT`	70 Only supported on macOS. 47-65 Removed due to the GLitch exploit.	79 Only supported on macOS.	51-59 Removed due to the GLitch exploit.	No	57 Only supported on macOS. 34-52 Removed due to the GLitch exploit.	No	47-65 Removed due to the GLitch exploit.	47-65 Removed due to the GLitch exploit.	No	34-47 Removed due to the GLitch exploit.	No	5.0-9.0 Removed due to the GLitch exploit.