Computer-Generated Watercolor
Cassidy J. Curtis, Sean E. Anderson, Joshua E. Seims, Kurt W. Fleischer, David H. Salesin.
Proceedings of the 24th annual conference on Computer graphics and interactive techniques (SIGGRAPH'97), pp. 421--430, New York, NY, USA, ACM Press/Addison-Wesley Publishing Co.,
1997. [BibTeX]
Non-Photorealistic Animation
Cassidy J. Curtis.
SIGGRAPH 1999 Course 17, ACM Press,
1999. [BibTeX]
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]