Non-Photorealistic Computer Graphics Library

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Found 4 item(s) authored by "Jörg Hamel" Find Author on Google.

PhD Thesis A New Lighting Model for Computer-Generated Line Drawings
Jörg Hamel.
Otto-von-Guericke University Magdeburg, Germany, 2000. [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

Author(s): Oliver Deussen, Jörg Hamel, Andreas Raab, Stefan Schlechtweg, Thomas Strothotte.
Proceedings: Graphics Interface (GI'99), pp. 175--182, 1999.
[BibTeX] Find this paper on Google

We present a method for generating line drawings of complex geometries in the style of crosshatched illustrations. Hatching lines are generated by intersecting the geometry with a set of planes. Half-toning on the basis of the generated curves is used to represent a given intensity distribution. Computing a geometric skeleton allows us to determine automatically the orientation of the intersection planes for a wide variety of models. By using predefined line styles different types of illustrations can be generated. Applications of the method are discussed, examples are given.

Article Capturing and Re-Using Rendition Styles for Non-Photorealistic Rendering
Jörg Hamel, Thomas Strothotte.
Computer Graphics Forum, Vol. 18, No. 3, 1999. [BibTeX]

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