Binds a framebufferobject (if capability exists). Fbos allow enhanced render-to-texture operation, and off-screen rendering to large buffers. Once you start using fbos it is heavily recommended to check your setup for the whole l3dlist with l3dlist.fbotest. An fbo setup consists of rcmdfbo (for binding), rcmdfbotex or rcmdfborb for attaching renderbuffers/textures and finally the rcmdfbodrawto command which specifies which assignment the color is rendered to.
o-+ renderinterface o-+ rcmd o-+ rcmdfbo