glFramebufferBinding
glFramebufferBinding is a constant used in OpenGL to query or set the binding point for framebuffers. When you call glGetIntegerv with glFramebufferBinding, it returns the name of the currently bound framebuffer object. Framebuffer objects are essential for rendering to textures or off-screen buffers instead of the default window. The binding point determines which framebuffer object is currently active for rendering operations.
The default framebuffer, often referred to as the window-system-provided framebuffer or the screen, has a name
Understanding glFramebufferBinding is crucial for implementing techniques such as render-to-texture, deferred rendering, and post-processing effects, where