Dragons Emerging from the Forest by Kazuo Shiraga

This work by a key member of the Japanese Gutai movement serves as an example of their groundbreaking use of chance. Shiraga swung, slipped and spun back and forth from a rope attached to the ceiling with wet oil paint on his feet. As he swung, his feet would come in contact with the canvas on the floor, creating the piece. This could be considered a work of material generative art with the rope-swing-body-paint-motion combination forming the autonomous system.