Guarda Streamingcommunity. Side Phase Drift is an abstract three-screen performance projection piece. Each frame was composed of sets of images that were manipulated in form, color, superimposition and time. The image sequences are logical permutations of a progressively evolving order. The images were realized on a mechanical analogue computer system called a CAM machine and an Optical Printer at Motion Graphics, Inc. The Optical Printer was modified with controls and accessories to facilitate the color sequencing which was based on complimentary color relationships utilizing a hierarchical system.