Exact Evaluation of Catmull-Clark Subdivision Surfaces near B-Spline Boundaries

Dylan Lacewell
University of Utah

Brent Burley
Walt Disney Animation Studios

This paper appears in issue Volume 12, Number 3.
An electronic version of this article is available.

Abstract

We extend the eigenbasis method of Stam to evaluate Catmull-Clark subdivision surfaces near extraordinary vertices on B-spline boundaries. Source code is available online.

Author Information

Dylan Lacewell, School of Computing, 50 S. Central Campus Dr., Rm. 3345, Salt Lake City, UT 84112 lacewell@cs.utah.edu

Brent Burley, 500 S. Buena Vista Street, Burbank, CA 91521 Brent.Burley@disney.com

Source Code

matlab.tgz: Matlab files to precompute the eigenbasis data.

subdeval.tgz: C++ code for runtime evaluation.

BibTeX Entry

@article{LacewellBurley07,
  author = "Dylan Lacewell and Brent Burley",
  title = "Exact Evaluation of Catmull-Clark Subdivision Surfaces near B-Spline Boundaries",
  journal = "journal of graphics, gpu, and game tools",
  volume = "12",
  number = "3",
  pages = "7-15",
  year = "2007",
}