Virtual Destruction of a 3D Object with a Stick

Miyazaki, T, Kaneko, T, and S. Kuriyama

This paper is concerned with a real-time method for realizing virtual destruction of a 3D<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
object with external force. A target object is a soft $tofu$ (bean curd) cube which is easily<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
destructable or breakable with a stick. A spring-mass network model is used to represent<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
such an object. Destruction is realized by cutting a spring when its length<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
exceeds its maximum length due to excess stretch<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
force. A system was implemented on a PC with 2 CPU's and a PHANToM, a force feedback device. A set of optimal<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
parameters are experimentally identified. It is concluded<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
that real-time destruction realized with the presented method<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
can provide destruction close to real one.