COMPUTER RENDERING PROGRAMS USED TO CONSTRUCT REALISTIC IMAGES OUT OF COMPUTER DATA SO THAT THE IMAGES CAN BE USED FOR TAKING PICTURES OR FOR GENERATING VIDEO-ANIMATION MOVIES; COMPUTER UTILITY PROGRAMS USED TO CONVERT COMPUTER DATA FROM ONE FORMAT TO ANOTHER, TO DISPLAY GENERATED IMAGES ON COMPUTER SCREENS AND TO GENERATE REGULAR PATTERNS OR STRUCTURES USED BY THE AFOREMENTIONED PROGRAMS