Project description: Due to the limitation of passive simulation and simplified modeling methods, it is very difficult to control the behavior of deformable object by manipulating the initial conditions and coefficients. We present a novel interactive method and interface techniques for controlling the behavior of physically-based simulation of deformable objects. An attractive feature of our system is that an animator is able to directly edit the motion without adjusting the underlying physical parameters and defining desired key-frames. Using our system, an animator can select any part of the deformable structure at any time during the simulation and simply drag it to the desired location, then our system automatically generates the motion path of the designated node using the proposed heuristic optimal method. The optimal path generator computes the required control parameters that enforce the intended node to the desired goal position while preserving the style of the original motion and minimizing energy to achieve the goal pose.

Publications:

Hongjun Jeon and Min-Hyung Choi, “Interactive Motion Control of Deformable Objects Using Localized Optimal Control”, In Proceedings of International Conference on Robotics and Automation, April 2007 PDF BiBTeX

 

Hongjun Jeon, and Min-Hyung Choi, “Controllable simulation of deformable objects using the heuristic optimal control method”, In Proceedings of 12TH International Conference on Geometry and Graphics, 6-10 August, 2006 PDF BiBTeX

Videos 

Blending Path

Cloth and Ball

Curl Pose

Heart Simulation

Motion Control

Multi-Path Control