Optimization-based Interactive Motion Synthesis


We present a physics-based approach to synthesizing motion of a virtual character in a dynamically varying environment. Our approach views the motion of a responsive virtual character as a sequence of solutions to the constrained optimization problem formulated at every time step. This framework allows the programmer to specify active control strategies using intuitive kinematic goals, significantly reducing the engineering effort entailed in active body control. Our optimization framework can incorporate changes in the character's surroundings through a synthetic visual sensory system and create significantly different motions in response to varying environmental stimuli. Our results show that our approach is general enough to encompass a wide variety of highly interactive motions.

Related Articles

Optimization-based Interactive Motion Synthesis
Sumit Jain, Yuting Ye, C. Karen Liu
ACM Transactions on Graphics (TOG), 28(1), Article 10, Jan. 2009
Optimization-based Interactive Motion Synthesis for Virtual Characters
Sumit Jain, Yuting Ye, C. Karen Liu
ACM SIGGRAPH Sketches 2007


AVI (DivX), 120 MB


SIGGRAPH 2009 Talk, PPT 2007 (.zip, 45 MB)

Project Members

Sumit Jain
Yuting Ye
C. Karen Liu