By using his fingertips instead of a paintbrush on different glass sheets positioned on multiple levels, each covered with slow-drying oil paints, he was able to add depth to his paintings. After photographing each frame painted on the glass sheets, which was four times larger than the usual A4-sized canvas, he had to slightly modify the painting for the next frame and so on. It took him over two years—from March 1997 through April 1999—to paint each of the 29,000+ frames. For the shooting of the frames a special adapted motion-control camera system was built, probably the most precise computerized animation stand ever made. On this an IMAX camera was mounted, and a video-assist camera was then attached to the IMAX camera.