The EXT_disjoint_timer_query.beginQueryEXT() method of the WebGL API starts a timer query.
Syntax
void ext.beginQueryEXT(target, query);
Parameters
- target
- A
GLenumspecifying the target of the time query. Must beext.TIME_ELAPSED_EXT. query- A
WebGLTimerQueryEXTobject for which to start the time querying.
Return value
None.
Examples
var ext = gl.getExtension("EXT_disjoint_timer_query");
var query = ext.createQueryEXT();
ext.beginQueryEXT(ext.TIME_ELAPSED_EXT, query);
// ...
Specifications
| Specification | Status | Comment |
|---|---|---|
| EXT_disjoint_timer_query The definition of 'EXT_disjoint_timer_query' in that specification. |
Working Draft | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | ? | 41 (41) [1] | ? | ? | ? |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? | ? |
[1] Toggling the webgl.enable-draft-extensions preference in about:config is required.