Control solutions for the resolution plane of inverse kinematic

Details Control solutions for the resolution plane of inverse kinematic Control solutions for the resolution plane of inverse kinematic

1996-08-02

1999-03-30

Buchel, Jr., Rudolph J.

Computer graphics processing and selective visual display system

Computer graphics processing

Animation

G06T 1570

Patent

active

058895329

ABSTRACT:
A method of and a system for controlling an inverse kinematics generated animation of an articulated chain is described. A resolution plane in a default orientation is computed by determining a root-effector vector extending from a root of an articulated chain to an end effector of the articulated chain and letting the resolution plane extend through the root-effector vector. A control icon representative of a position relative to the root is visually displayed. The resolution plane of an articulated chain is manipulated by manipulating the icon and re-determining the resolution plane using the root-effector vector and a root-control vector extending from the root to the icon. The animation of the articulated chain is constrained relative to the resolution plane and a solution of positions and orientations of all limbs of the articulated chain in achieving a goal is computed and displayed.

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Badler et al., "Articulated Figure Positioning by Multiple Constraints," IEEE Computer Graphics and Applications, vol. 7, No. 6, pp. 28-38, Jul. 1987.
Watt et al.:"Advanced Animation and Rendering Techniques--theory and Practice", ACM Press, New York, New York, 1992, Chapter 16, Animating Articulated Structures, pp. 369-384.
SOFTIMAGE.vertline.3D Animating--A Comprehensive User's Guide, Softimage Inc., Montreal, Canada, 1996, pp. 129-142, 1306-1311.

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