web api instance method
WebGL2RenderingContext: readBuffer() method
Available in workers
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.
- : A
Return value
None (undefined).
Examples
gl.readBuffer(gl.COLOR_ATTACHMENT0);
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.