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Lines and How to Draw Them
Stefan Schlechtweg.
Norsk samarbeid innen grafisk databehandling, No. 2/97, pp. 4--6,
1997. [BibTeX]
Non-Photorealistic Computer Graphics: Modeling, Rendering and Animation
Thomas Strothotte, Stefan Schlechtweg.
Morgan Kaufmann, Hardcover, 1, June 15,
2002. [BibTeX]
OPENNPAR: A System for Developing, Programming, and Designing Non-Photorealistic Animation and Rendering
Nick Halper, Tobias Isenberg, Felix Ritter, Bert Freudenberg, Oscar E. Meruvia Pastor, Stefan Schlechtweg, Thomas Strothotte.
11th Pacific Conference on Computer Graphics and Applications (PG'03), pp. 424, Canmore, Canada,
2003. [BibTeX]
RenderBots-Multi-Agent Systems for Direct Image Generation
Author(s): Stefan Schlechtweg, Tobias Germer, Thomas Strothotte.
Article: Computer Graphics Forum, Vol. 24, No. 2, pp. 137--148, June,
2005.
[BibTeX] 
Abstract:
The term stroke-based rendering collectively describes techniques where images are generated from elements that are usually larger than a pixel. These techniques lend themselves well for rendering artistic styles such as stippling and hatching. This paper presents a novel approach for stroke-based rendering that exploits multi-agent systems. RenderBots are individual agents each of which in general represents one stroke. They form a multi-agent system and undergo a simulation to distribute themselves in the environment. The environment consists of a source image and possibly additional G-buffers. The final image is created when the simulation is finished by having each RenderBot execute its painting function. RenderBot classes differ in their physical behavior as well as their way of painting so that different styles can be created in a very flexible way.
Rendering Line Drawings with Limited Resources
Stefan Schlechtweg, Thomas Strothotte.
Proceedings of GraphiCon'96, Vol. 2, pp. 131--137, St. Petersburg, Russia, July,
1996. [BibTeX]
Speedlines - Depicting Motion in Motionless Pictures
Maic Masuch, Stefan Schlechtweg.
Siggraph 1999, 8-13 August 1999, Los Angeles,
1999. [BibTeX]
Surfaces To Lines: Rendering Rich Line Drawings
Stefan Schlechtweg, Bert Schönwälder, Lars Schumann, Thomas Strothotte.
The Sixth International Conference in Central Europe on Computer Graphics and Visualization'98 (WSCG'98), University of West Bohemia, Campus Bory, Plzen - Bory, Czech Republic, February 9-13,
1998. [BibTeX]
Teaching Non-Photorealistic Animation and Rendering
Thomas Strothotte, Stefan Schlechtweg.
1st International Symposium on Non-Photorealistic Animation and Rendering (NPAR'00), pp. 109, Annecy, France, June 05 - 07,
2000. [BibTeX]