Computer graphics processing and selective visual display system – Computer graphics processing – Shape generating
Patent
1996-10-28
2000-08-22
Zimmerman, Mark K.
Computer graphics processing and selective visual display system
Computer graphics processing
Shape generating
345474, G06T 1100
Patent
active
06108011&
ABSTRACT:
A method, apparatus, and software product interpolates inbetween shapes of a two- or three-dimensional geometric model between a sequence of key poses of the model using a new type of parametric curve with shape parameters for providing independent control over the properties of the curve. The shape parameters provide the animator with full control over the behavior of the interpolated shapes between one key pose to the next. More specifically, these shape parameters independently control the direction, absolute magnitudes, and relative magnitudes of the incoming and outgoing tangent vectors at each key pose.
REFERENCES:
patent: 5594852 (1997-01-01), Tankelevich
patent: 5594853 (1997-01-01), Salesin et al.
patent: 5767861 (1998-06-01), Kimura
Kochanek, Doris H.U. and Bartels, Richard H., "Interpolating Splines with Local Tension, Continuity, and Bias Control" Computer Graphics, vol. 18, No. 3, pp. 33-41, Jul., 1984.
Foley, James D., Dam, Andries van, Feiner, Steven K., Hughes, John F., Computer Graphics Principles and Practice, 2nd Ed., pp. 504-507, 514-516, 1990.
Cao Huedung X.
Pacific Data Images, Inc.
Zimmerman Mark K.
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