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The Prix Ars Electronica Archive is a collection enabling search and viewing of all the submissions since 1987. The award-winning projects are documented with catalogue texts and audio-visual media. All other submissions can be searched by title/artist and displayed with year, category in list form. Please cite the credits (artwork name, artist and photographer) and only use the materials if your article is related to Ars Electronica.
On The Run
Marc Raibert,
Leg Laboratory
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Original: On The Run | 4404 * 2993px | 41.9 MB
Original: On The Run | 4404 * 2993px | 41.9 MB
Original: On The Run | 4404 * 2993px | 41.9 MB
Original: On The Run | 4404 * 2993px | 41.9 MB
Robot control programs are used to automate animated creatures. Each creature has a physical model, and the behavior of each creature is generated by computer control programs. The physical model ensures that the motions obey the laws of physics. Control could free the animator from specifying the details of joint and limb motion while producing both physically realistic and natural-looking results.
In 'On The Run' we implemented computer animations of a biped robot, a quadruped robot, and a kangaroo. Each creature was modeled as a linked set of rigid bodies with compliant actuators at its joints. Control algorithms regulated the running speed, organized the use of the legs, and maintained balance. All motions were generated by numerically integrating equations of motion derived from the physical models. The resulting behavior included running at various speeds, traveling with several gaits (run, trot, bound, gallop, and hop), jumping, and traversing simple paths. Whereas the use of control permitted a variety of physically realistic animated behavior to be generated with limited human intervention, the process of designing the control algorithms was not automated: the algorithms were 'tweaked' and adjusted for each new creature. (Marc H. Raibert/Leg Laboratory)
Technical Background
HW / SW: Silicon Graphics, IBM R/6000
In 'On The Run' we implemented computer animations of a biped robot, a quadruped robot, and a kangaroo. Each creature was modeled as a linked set of rigid bodies with compliant actuators at its joints. Control algorithms regulated the running speed, organized the use of the legs, and maintained balance. All motions were generated by numerically integrating equations of motion derived from the physical models. The resulting behavior included running at various speeds, traveling with several gaits (run, trot, bound, gallop, and hop), jumping, and traversing simple paths. Whereas the use of control permitted a variety of physically realistic animated behavior to be generated with limited human intervention, the process of designing the control algorithms was not automated: the algorithms were 'tweaked' and adjusted for each new creature. (Marc H. Raibert/Leg Laboratory)
Technical Background
HW / SW: Silicon Graphics, IBM R/6000
Marc Raibert/Leg Laboratory (USA). The Leg Laboratory was started in 1980 to study the dynamics and control of legged robots. The purpose was to improve the agility and behavior of legged robots and to provide models for understanding more about locomotion in people and animals. The Laboratory has created several legged robots that move dynamically and balance themselves actively.