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Beyond Photorealism
Author(s): Stuart Green.
Proceedings: 10th Eurographics Workshop on Rendering,
1999.
[BibTeX] 
Abstract:
For around 30 years the computer graphics research community has pursued photorealism as though it were the ultimate form of visual expression. Yet, as an art form, photorealism is one of many abstractions that an artist might use to convey ideas, shape, structure, emotion and mood. In this paper we describe how techniques and wisdom learned from photorealistic computer graphics can be adapted and applied to a diverse range of alternative styles of visual expression.
Non-Photorealistic Rendering
Stuart Green, David H. Salesin, Simon Schofield, Aaron Hertzmann, Peter C. Litwinowicz, Amy A. Gooch, Cassidy J. Curtis, Bruce Gooch.
Siggraph 99, ACM Press, Course 17,
1999. [BibTeX]