WebGL2RenderingContext.readBuffer()

The WebGL2RenderingContext.readBuffer() method of the WebGL 2 API selects a color buffer as the source for pixels for subsequent calls to copyTexImage2D, copyTexSubImage2D, copyTexSubImage3D or readPixels.

Syntax

void gl.readBuffer(src);

Parameters

src

A GLenum specifying a color buffer. Possible values:

  • gl.BACK: Reads from the back color buffer.
  • gl.NONE: Reads from no color buffer.
  • gl.COLOR_ATTACHMENT{0-15}: Reads from one of the 16 color attachment buffers.

Return value

None.

Examples

gl.readBuffer(gl.COLOR_ATTACHMENT0);

Specifications

Specification
WebGL 2.0 Specification (WebGL 2.0)
# 3.7.4

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
readBuffer
56
79
51
No
43
15
58
58
51
43
15
7.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext/readBuffer