The WebGLRenderingContext.bindBuffer()
method of the WebGL API binds a given WebGLBuffer
to a target.
Syntax
void gl.bindBuffer(target, buffer);
Parameters
- target
- A
GLenum
specifying the binding point (target). Possible values:gl.ARRAY_BUFFER
: Buffer containing vertex attributes, such as vertex coordinates, texture coordinate data, or vertex color data.gl.ELEMENT_ARRAY_BUFFER
: Buffer used for element indices.- When using a WebGL 2 context, the following values are available additionally:
gl.COPY_READ_BUFFER
: Buffer for copying from one buffer object to another.gl.COPY_WRITE_BUFFER
: Buffer for copying from one buffer object to another.gl.TRANSFORM_FEEDBACK_BUFFER
: Buffer for transform feedback operations.gl.UNIFORM_BUFFER
: Buffer used for storing uniform blocks.gl.PIXEL_PACK_BUFFER
: Buffer used for pixel transfer operations.gl.PIXEL_UNPACK_BUFFER
: Buffer used for pixel transfer operations.
- buffer
- A
WebGLBuffer
to bind.
Return value
None.
Exceptions
Only one target can be bound to a given WebGLBuffer
. An attempt to bind the buffer to another target will throw an INVALID_OPERATION
error and the current buffer binding will remain the same.
A WebGLBuffer
which has been marked for deletion with deleteBuffer
cannot be (re-)bound. An attempt to do so will generate an INVALID_OPERATION
error, and the current binding will remain untouched.
Examples
Binding a buffer to a target
var canvas = document.getElementById('canvas'); var gl = canvas.getContext('webgl'); var buffer = gl.createBuffer(); gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
Getting current bindings
To check the current buffer bindings, query the ARRAY_BUFFER_BINDING
and ELEMENT_ARRAY_BUFFER_BINDING
constants.
gl.getParameter(gl.ARRAY_BUFFER_BINDING); gl.getParameter(gl.ELEMENT_ARRAY_BUFFER_BINDING);
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'bindBuffer' in that specification. |
Recommendation | Initial definition for WebGL. |
OpenGL ES 2.0 The definition of 'glBindBuffer' in that specification. |
Standard | Man page of the (similar) OpenGL ES 2 API. |
WebGL 2.0 The definition of 'bindBuffer' in that specification. |
Editor's Draft |
Updated definition for WebGL 2. Adds new |
OpenGL ES 3.0 The definition of 'glBindBuffer' in that specification. |
Standard | Man page of the (similar) OpenGL ES 3 API. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
bindBuffer | Chrome Full support 9 | Edge Full support 12 | Firefox Full support 4 | IE Full support 11 | Opera Full support 12 | Safari Full support 5.1 | WebView Android Full support Yes | Chrome Android Full support 25 | Firefox Android Full support Yes | Opera Android Full support 12 | Safari iOS Full support 8 | Samsung Internet Android Full support 1.5 |
WebGL2 | Chrome Full support 56 | Edge Full support 79 | Firefox Full support 51 | IE No support No | Opera Full support 43 | Safari No support No | WebView Android Full support 58 | Chrome Android Full support 58 | Firefox Android Full support 51 | Opera Android Full support 43 | Safari iOS No support No | Samsung Internet Android Full support 7.0 |
Legend
- Full support
- Full support
- No support
- No support