This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
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 drawingbuffer if no framebuffer is bound.
Syntax
void gl.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.
Exceptions
- If
bufferscontains not one of the accepted values, agl.INVALID_ENUMerror is thrown.
Examples
gl.drawBuffers([gl.NONE, gl.COLOR_ATTACHMENT1]);
Specifications
| Specification | Status | Comment |
|---|---|---|
| WebGL 2.0 The definition of 'drawBuffers' in that specification. |
Editor's Draft | Initial definition for WebGL. |
| OpenGL ES 3.0 The definition of 'glDrawBuffers' in that specification. |
Standard | Man page of the (similar) OpenGL 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.
No compatibility data found. Please contribute data for "api/WebGL2RenderingContext" (depth: WebGL2RenderingContext.drawBuffers) to the MDN compatibility data repository.