Computing That Serves

SuperD: SubD Modeling without Subdivision


Thursday, October 27, 2016 - 11:00am


Alyn Rockwood


Parris Egbert

Alyn Rockwood
Thursday, October 27, 2016
11:00am  1170 TMCB


The SuperD modeler employs a recursive subdivision, modeling interface for design, but without the troublesome extraordinary points or patch clusters at those points.  The key to SuperD is use of new N-sided surface patches, which correspond to the mesh topology. The N-sided patches also enable G2 continuity, good triangulation and efficient mobile device implementation.
Recent advances in N-sided surfaces allow more flexible and fairer surfaces than previously seen in this arena [VARADY 2011]. Recursive subdivision (SubD) is widely used in design and animation due to its popular mesh interface [PETERS 2008].  We let the SubD interface drive a natural arrangement of N-sided surface patches for G2 continuity that feels like the SubD modeling experience.



Alyn Rockwood held academic positions at both Arizona State University and Colorado School of Mines. He has received several teaching awards, the COFES 2007 Innovation in Technology Award, and the CAD Society "Heroes of Engineering" Award. He has also been the cofounder of two successful startup companies.

Alyn Rockwood was SIGGRAPH Papers Chair in 1999, SIGGRAPH Conference Chair in 2003and ACM SIGGRAPH Vice President (2008 – 2011), he initiated the SIGGRAPH Asia Conference.

His current research is focused on new modeling techniques for geometric design and animation, and engineering applications of Clifford Algebra. He has published more than 90 peer reviewed articles, written 12 patents, and published two technical reference books and one novel. He received his Ph.D. in Applied Math (DAMTP) at the University of Cambridge, U. K.