Modeling and Deformation of Arms and Legs Based on Ellipsoidal Sweeping

We present a new approach to the modeling and deformation of a human or virtual character’s arms and legs. Each limb is represented as a set of ellipsoids of varying size interpolated along a skeleton curve. A base surface is generated by approximating these ellipsoids with a swept ellipse, and the difference between that and the detailed shape of the arm or leg is represented as a displacement map. We demonstrate that the natural bending of arms and legs can be emulated using this approach, and show its effectiveness by articulating the limbs of a scanned human body and those of a virtual character.

• Type: Conference
• Year: 2003
• Where: PG
• Authors: Dae-Eun Hyun, Seung-Hyun Yoon, Myung-Soo Kim, Bert Jüttler
• Keywords: Ellipsoids, PG 2003, Skeleton Curve, Virtual Character Arms