GLDRAWFRAMEBUFFER

GLDRAWFRAMEBUFFER is a constant used in OpenGL to specify the draw buffer of a framebuffer. When binding a framebuffer using the glFramebufferBinding function, you can pass GL_DRAW_FRAMEBUFFER to indicate that you are configuring the buffer that subsequent rendering operations will write to. This is distinct from GL_READ_FRAMEBUFFER, which specifies the buffer from which pixel data will be read. Framebuffers in OpenGL are collections of buffers, such as color buffers, depth buffers, and stencil buffers, that serve as rendering targets. By default, when a framebuffer object is not bound, the default framebuffer of the windowing system is used. The default framebuffer has a single draw buffer. Using GL_DRAW_FRAMEBUFFER allows for fine-grained control over which buffer receives rendered output, especially when working with multiple render targets or advanced rendering techniques like ping-ponging between buffers.