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
readBuffer(source)
Parameters
source-
A
GLenumspecifying 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 (undefined).
Examples
gl.readBuffer(gl.COLOR_ATTACHMENT0);
Specifications
| Specification |
|---|
| WebGL 2.0 Specification # 3.7.4 |
Browser compatibility
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