The EXT_disjoint_timer_query.beginQueryEXT() method of the WebGL API starts a timer query.
The EXT_disjoint_timer_query.beginQueryEXT() method of the WebGL API starts a timer query.
js
beginQueryEXT(target, query)
target A GLenum specifying the target of the time query. Must be ext.TIME_ELAPSED_EXT.
queryA WebGLQuery object for which to start the time querying.
None (undefined).
js
const ext = gl.getExtension("EXT_disjoint_timer_query"); const 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 |
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. |
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https://developer.mozilla.org/en-US/docs/Web/API/EXT_disjoint_timer_query/beginQueryEXT