WebGL2RenderingContext: drawBuffers() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.
Note: This feature is available in Web Workers.
The WebGL2RenderingContext.drawBuffers() method of the WebGL 2 API defines draw buffers to which
fragment colors are written into. The draw buffer settings are part of the state of the
currently bound framebuffer or the drawing buffer if no framebuffer is bound.
Syntax
drawBuffers(buffers)
Parameters
buffers-
An
ArrayofGLenumspecifying the buffers into which fragment colors will be written. Possible values are:gl.NONE-
Fragment shader output is not written into any color buffer.
gl.BACK-
Fragment shader output is written into the back color buffer.
gl.COLOR_ATTACHMENT{0-15}-
Fragment shader output is written in the nth color attachment of the current framebuffer.
Return value
None (undefined).
Exceptions
- If
bufferscontains not one of the accepted values, agl.INVALID_ENUMerror is thrown.
Examples
gl.drawBuffers([gl.NONE, gl.COLOR_ATTACHMENT1]);
Specifications
| Specification |
|---|
| WebGL 2.0 Specification # 3.7.11 |
Browser compatibility
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