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The OES_element_index_uint extension is part of the WebGL API and adds support for gl.UNSIGNED_INT types to WebGLRenderingContext.drawElements().

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

Availability: This extension is only available to WebGL1 contexts. In WebGL2, the functionality of this extension is available on the WebGL2 context by default.

Extended methods

This extension extends WebGLRenderingContext.drawElements():

  • The type parameter now accepts gl.UNSIGNED_INT.


var ext = gl.getExtension('OES_element_index_uint');
gl.drawElements(gl.POINTS, 8, gl.UNSIGNED_INT, 0);


Specification Status Comment
The definition of 'OES_element_index_uint' in that specification.
Recommendation Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic Support ? (Yes)24.0 ? ? ?
FeatureAndroidChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic Support ? ? (Yes) ? ? ? ?

See also