Real-Time Clothing: Geometry and Physics

This paper describes a technique for animating in real time garments placed over an articulated character. In order to do this, the character to be dressed must be approximated using a hierarchy of ellipsoids. The pieces of clothing are represented using mass-spring particle systems. First the particles move following the ellipsoids; this is followed by the application of dynamic forces. Finally, penetration of the character’s ellipsoids by any particle is corrected. This method has been optimised and is fast enough to deliver real-time performance on mid-range PCs and workstations, using only portable and standard C++ and OpenGL code.