Patent
1994-08-25
1997-01-14
Herndon, Heather R.
G06F 1500
Patent
active
055948561
ABSTRACT:
A character animation system executing on a computer. The system provides a simple, efficient and powerful user interface that allows the user to specify complex animations of multi-legged characters by placing footprints on a surface. The system automatically generates a natural looking animation based on the footprints. Motions such as walking, running, jumping, etc. are easily animated depending on the way footprints are placed. The user is able to create new footprint patterns and modify existing patterns. Footprint blocks on a timeline are used to specify the time duration that each foot is in contact with a footprint. The user may specify keyframes in the animation sequence that allow more complicated body movements to be incorporated with the footprint based animation.
REFERENCES:
Calvert et al., "Towards the Autonomous Animation of Multiple Human Figures", Proceedings of Computer Animation '94, pp. 69-75, May 25, 1994.
Life Forms User Guide, MacroMind, Inc., 1992.
Wilhelms, "Toward Automatic Motion Control", IEEE CG&A, Apr. 1987, pp. 11-22.
Girard, "Interactive Design of 3D Computer-Animated Legged Animal Motion", IEEE CG& A, Jun. 1987, pp. 39-51.
T. W. Calvert, et al., "Aspects of the Kinetic Simulation of Human Movement", IEEE CG& A, Nov., 1982, pp. 41-50.
Albert Philip H.
Burwell Joseph R.
Herndon Heather R.
Kulas Charles J.
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