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