Sharp Features on Multiresolution Subdivision Surfaces

Henning Biermann      Ioana M. Martin      Denis Zorin      Fausto Bernardini

Media Research Laboratory
Department of Computer Science
Courant Institute of Mathematical Sciences
New York University
                 IBM T.J. Watson Research Center
30 Saw Mill River Road
Hawthorne, NY 10532


In this paper we describe a method for creating sharp features and trim regions on multiresolution subdivision surfaces along a set of user-defined curves. Operations such as engraving, embossing, and trimming are important in many surface modeling applications. Their implementation, however, is non-trivial due to computational, topological, and smoothness constraints that the underlying surface has to satisfy.

The novelty of our work lies in the ability to create sharp features anywhere on a surface and in the fact that the resulting representation remains within the multiresolution subdivision framework. Preserving the original representation has the advantage that other operations applicable to multiresolution subdivision surfaces can subsequently be applied to the edited model. We also introduce an extended set of subdivision rules for Catmull-Clark surfaces that allows the creation of creases along diagonals of control mesh faces.

Pacific graphics 2001 paper: 300dpi PDF (3.2MB)

Project Pages:
Subdivision Surfaces
Multiresolution Surfaces and Surface Processing

example of sharp feature edit

Copyright © 2001 Henning Biermann, Ioana M. Martin, Denis Zorin, Fausto Bernardini