KEYWORD Motion
Planning, Rapid-exploring Random Tree (RRT), Chinese Shadow
Play, Secondary Motion
In this work, we propose a shadow play animation
system that utilizes motion planning algorithms
to generate Chinese shadow play animation
automatically according to user’s highlevel
inputs. The motion of a character in a
shadow play show usually consists of intended
primary motion and reactive secondary motion.
We propose to use the RRT-Connect algorithm
to generate primary motions and design two
methods to facilitate the generation of secondary
motions. For the character's upper body,
we try to bias the search of the planner to generate
a path with our preferred motion pattern
as much as possible. For the character's lower
body, we modify its motion path by a simple
pendulum model and some collision-avoidance
correction mechanism in a post-processing step.
PAPER
S.W. Hsu, and T.Y. Li, "Generating Secondary Motions in Shadow Play Animations
with Motion Planning Techniques,"
in in ACM SIGGRAPH 2005 Technical Sketch, Los Angeles, Los Angeles, California, USA, July 2005. [paper]
S.W. Hsu, and T.Y. Li, "Planning Character Motions
for Shadow Play Animations,"
in Proceedings of International Conference on Computer Animation and Social Agents, Hong Kong, August 2005. [paper]
S.W. Hsu, and T.Y. Li "Generating
Traditional Shadow Play Animations with Motion Planning Algorithms,"
in Proceedings of the Sixth Conference on Artificial Intelligence
and Applications, Taiwan, November, 2004. (in Chinese) [paper]
PAPER 
