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
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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.