A Developer's Guide to Silhouette Algorithms for Polygonal Models
Author(s): Tobias Isenberg, Bert Freudenberg, Nick Halper, Stefan Schlechtweg, Thomas Strothotte.
Article: IEEE Computer Graphics and Applications, Vol. 23, No. 4, pp. 28--37, July/August,
2003.
[BibTeX] 
Abstract:
Generating object silhouettes lies at the heart of nonphotorealism and is needed for many styles of rendering. This article describes, categorizes, discusses, and recommends algorithms for computing the silhouette of a polygonal model, thus guiding developers to the optimal approach for their specific needs.
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