Non-Photorealistic Computer Graphics Library

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Found 18 item(s) authored by "Stefan Schlechtweg" .
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Article A Developer's Guide to Silhouette Algorithms for Polygonal Models
Tobias Isenberg, Bert Freudenberg, Nick Halper, Stefan Schlechtweg, Thomas Strothotte.
IEEE Computer Graphics and Applications, Vol. 23, No. 4, pp. 28--37, July/August, 2003. [BibTeX]

Proceedings An Approach to Visualizing Transparency in Computer-Generated Line Drawings
Jörg Hamel, Stefan Schlechtweg, Thomas Strothotte.
IV'98, 1998. [BibTeX]

Proceedings 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]

Proceedings Animating Frame-To-Frame-Coherent Line Drawings for Illustrated Purposes

Author(s): Maic Masuch, Lars Schumann, Stefan Schlechtweg.
Proceedings: Proceedings of Simulation und Visualisierung '98, SCS Europe, Peter Lorenz, Bernhard Preim, pp. 101-112, 1998.
[BibTeX] Find this paper on Google

Abstract:
We present a system for rendering 3D animations in the style of line drawings. We use a highly parameterized line model in order to determine the appearance of a line. This model allows us to render characteristic line deviations that remain--in contrast to existing non-photorealistic rendering systems--frame coherent. Other inconsistencies which result from intersection and visibility changes during an animation are prevented by a path reconstruction method. Furthermore, we implemented a keyframing for linestyle parameters which enables us to extend illustration techniques like simplification of a scene or the placement of emphasis on certain objects to the field of 3D computer animation.

Technical Report Creating High Quality Hatching Illustrations
Johannes Zander, Tobias Isenberg, Stefan Schlechtweg, Thomas Strothotte.
Department of Computer Science, Otto-von-Guericke University of Magdeburg, No. 12/2004, Germany, 2004. [BibTeX]

Proceedings Creating Non-Photorealistic Images the Designer’s Way
Nick Halper, Stefan Schlechtweg, Thomas Strothotte.
2nd International Symposium on Non-Photorealistic Animation and Rendering (NPAR'02), Annecy, France, June 3-5, 2002. [BibTeX]

Proceedings daLi! - Drawing Animated Lines!
Maic Masuch, Stefan Schlechtweg, Bert Schönwälder.
Simulation and Animation '97, pp. 87--95, SCS Europe, Magdeburg, 1997. [BibTeX]

Proceedings Enhancing Slice-based Visualizations of Medical Volume Data
Christian Tietjen, Björn Meyer, Stefan Schlechtweg, Bernhard Preim, Ilka Hertel, Gero Strauß.
IEEE/Eurographics Symposium on Visualization (EUROVIS'06), pp. 123-130, IEEE, 2006. [BibTeX]

Article High Quality Hatching
Johannes Zander, Tobias Isenberg, Stefan Schlechtweg, Thomas Strothotte.
Computer Graphics Forum (EG'04), Vol. 23, No. 3, pp. 421--430, September, 2004. [BibTeX]

Proceedings Icon-Based Visualization Using Mosaic Metaphors
Thomas Nocke, Stefan Schlechtweg, Heidrun Schumann.
Ninth International Conference on Information Visualisation (IV'05), pp. 103--109, 2005. [BibTeX]

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