WebGLTimerQueryEXT

The WebGLTimerQueryEXT interface is part of the WebGL EXT_disjoint_timer_query extension and exposes a timer query object.

WebGL extensions are available using the WebGLRenderingContext.getExtension() method. For more information, see also Using Extensions in the WebGL tutorial.

When working with WebGLTimerQueryEXT objects, the following methods of the EXT_disjoint_timer_query extension are useful:

• ext.createQueryEXT()
• ext.deleteQueryEXT()
• ext.isQueryEXT()
• ext.beginQueryEXT()
• ext.endQueryEXT()
• ext.queryCounterEXT()
• ext.getQueryEXT()
• ext.getQueryObjectEXT()

ExamplesEdit

var ext = gl.getExtension("EXT_disjoint_timer_query");
var query = ext.createQueryEXT(); // creates a WebGLTimerQueryEXT object

SpecificationsEdit

Browser compatibilityEdit

[1] Toggling the webgl.enable-draft-extensions preference in about:config is required.

See alsoEdit

• WebGLRenderingContext.getExtension()
• EXT_disjoint_timer_query