Smooth Surfaces and Sharp Junctions

  • Date: 02/16/2007

Brian Wyvill (University of Victoria)


University of British Columbia


Because of their ability to form blends, respond to contact and produce
both organic shapes as well as man made objects, implicit surfaces have
the potential for uses other than the traditional clouds and water
droplets. Models can be built with either direct manipulation or
through a procedural interface. A hierarchical skeletal implicit
modeling system, the BlobTree, is described as a tool for the creation
of a wide range of models. The differential properties of implicit
surfaces are exploited to explore new techniques for rendering blobTree
models in several pen-and-ink styles. An interactive system is also
described that infers 3D models from sketched 2D outlines that combine
basic shapes using standard blending and CSG operators. The underlying
BlobTree enables far more complex models to be described, from
cartoon-like characters to detailed mechanical parts, than was
previously possible using a sketch based methodology.

Other Information: 

Centre for Scientific Computing Seminar 2007