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OES_vertex_array_object

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The OES_vertex_array_object extension is part of the WebGL API and provides vertex array objects (VAOs) which encapsulate vertex array states. These objects keep pointers to vertex data and provide names for different sets of vertex data.

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 and the constants and methods are available without the "OES" suffix.

Constants

This extension exposes one new constant, which can be used in the gl.getParameter() method:

ext.VERTEX_ARRAY_BINDING_OES
Returns a WebGLVertexArrayObjectOES object when used in the gl.getParameter() method as the pname parameter.

Interfaces

This extension exposes one new interface.

WebGLVertexArrayObjectOES
A vertex array object (VAO) pointing to vertex array data and providing names for different sets of vertex data.

Methods

This extension exposes four new methods.

ext.createVertexArrayOES()

Creates a new WebGLVertexArrayObjectOES.

ext.deleteVertexArrayOES()

Deletes a given WebGLVertexArrayObjectOES.

ext.isVertexArrayOES()

Returns true if a given object is a WebGLVertexArrayObjectOES.

ext.bindVertexArrayOES()

Binds a given WebGLVertexArrayObjectOES to the buffer.

Examples

var ext = gl.getExtension("OES_vertex_array_object");
var vao = ext.createVertexArrayOES();
ext.bindVertexArrayOES(vao);

// ...
// calls to bindBuffer or vertexAttribPointer 
// which will be "recorded" in the VAO
// ...

Specifications

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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support ? 25 (25) ? ? ?
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? ? ? ? ?

See also

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