Our live lightshows images are composite of many video, film, and other projections that are layered onto one area of the screen. The video clips in the Model A link are an example of this "built up" layering. For this segment of the Model A show we use three layers of video imagery and two to four layers of film images. Individually the video clips and film are very simple and don't contain a lot of detail. They need to be simple so that visual impact is not lost as images are layered. A good example of simple clips that are designed to loop continuously are shown in the Video A link.