.
A New Lighting Model for Computer-Generated Line Drawings
Jörg Hamel.
Otto-von-Guericke University Magdeburg, Germany,
2000. [BibTeX]
An Approach to Visualizing Transparency in Computer-Generated Line Drawings
Jörg Hamel, Stefan Schlechtweg, Thomas Strothotte.
IV'98,
1998. [BibTeX]
An Illustration Technique Using Hardware-Based Intersections and Skeletons
Oliver Deussen, Jörg Hamel, Andreas Raab, Stefan Schlechtweg, Thomas Strothotte.
Graphics Interface (GI'99), pp. 175--182,
1999. [BibTeX]
Capturing and Re-Using Rendition Styles for Non-Photorealistic Rendering
Author(s): Jörg Hamel, Thomas Strothotte.
Article: Computer Graphics Forum, Vol. 18, No. 3,
1999.
[BibTeX] 
Abstract:
Rendering high-quality non-photorealistic images of a given geometric model is often associated with a considerable amount of effort on the part of a user to fine-tune the rendition. In this paper we introduce a method and tools for re-using the user’s effort invested in one model for the rendering of other models. Our method uses templates to describe rendition styles. The paper gives a number of examples of the successful
transfer of styles from one model to another.