.
Fine Tone Control in Hardware Hatching
Matthew Webb, Emil Praun, Adam Finkelstein, Hugues Hoppe.
2nd International Symposium on Non-Photorealistic Animation and Rendering (NPAR'02), Annecy, France, June 3-5,
2002. [BibTeX]
Pattern Oriented Remeshing for Celtic Design
Author(s): Matthew Kaplan, Emil Praun, Elaine Cohen.
Proceedings: 12th Pacific Conference on Computer Graphics and Applications (PG'04), Seoul, Korea,
2004.
[BibTeX] 
Abstract:
Decorating arbitrary meshes with Celtic knots requires polygonal meshes with regular connectivity and close to regular face geometry. Because these properties are often irregular, especially in scanned or reconstructed models, the Celtic knots produced may be erratic and undesireable. In this paper we remesh models based on planar tilings defined by the user. Such pattern-oriented surfaces allow us to decorate models with attractive Celtic knots in a consistent fashion and may be applicable to a large number of algorithms that are sensitive to mesh structure.
Real-Time Hatching
Emil Praun, Hugues Hoppe, Matthew Webb, Adam Finkelstein.
SIGGRAPH 2001,
2001. [BibTeX]