Skin: A Constructive Approach to Modeling Free-Form Shapes

We present a new particle-based surface representation with which a user can interactively sculpt free-form surfaces. The particles maintain mesh connectivity and operate under rules that lead them to form triangulations with properties that make them suitable for use in subdivision. A user interactively guides the particles, which we call skin, to grow over a given collection of polyhedral elements (or skeletons), yielding a smooth surface (through subdivision) that approximates the underlying skeletal shapes. Skin resembles blobby modeling in the constructive approach to modeling it supports, but allows a richer vocabulary of skeleton shapes, supports sharp creases where desired, and provides a convenientmechanism for adding multiresolution surface detail. CR Categories and Subject Descriptors: I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling I.3.6 [Computer Graphics]: Methodology and Techniques Additional Key Words: Free-form modeling, meshes, subdivision, mult...

• Type: Conference
• Year: 1999
• Where: SIGGRAPH
• Authors: Lee Markosian, Jonathan M. Cohen, Thomas Crulli, John F. Hughes
• Keywords: Computer Graphics, Multiresolution Surface Detail, Particle-based Surface Representation, Resembles Blobby Modeling, SIGGRAPH 1999