Also known as Pre-rendered
thumb|Low-poly characters are rendered in real time and composited on top of higher-poly, pre-rendered backgrounds in [[3D Movie Maker.]] In computer graphics, pre-rendering or offline rendering is the technique of rendering images before playing them back at a later time, often on another computer system. It is contrasted with real-time rendering, where images are rendered and displayed within a time constraint, usually quickly enough to produce the illusion of motion.