Baseline Widely available
Note: This feature is available in Web Workers.
The WebGLRenderingContext.bindBuffer() method of the WebGL API binds a given WebGLBuffer to a target.
bindBuffer(target, buffer)
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.
None (undefined).
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.
const canvas = document.getElementById("canvas");
const gl = canvas.getContext("webgl");
const buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
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);
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