Wires: A Geometric Deformation Technique

Finding effective interactive deformation techniques for complex geometric objects continues to be a challenging problem in modeling and animation. We present an approach that is inspired by armatures used by sculptors, in which wire curves give definition to an object and shape its deformable features. We also introduce domain curves that define the domain of deformation about an object. A wire together with a collection of domain curves provide a new basis for an implicit modeling primitive. Wires directly reflect object geometry, and as such they provide a coarse geometric representation of an object that can be created through sketching. Furthermore, the aggregate deformation from several wires is easy to define. We show that a single wire is an appealing direct manipulation deformation technique; we demonstrate that the combination of wires and domain curves provide a new way to outline the shape of an implicit volume in space; and we describe techniques for the aggregation o...

• Type: Conference
• Year: 1998
• Where: SIGGRAPH
• Authors: Karan Singh, Eugene Fiume
• Keywords: Computer Graphics, Deformation Techniques, Domain Curves, Interactive Deformation Techniques, SIGGRAPH 1998