Non-Photorealistic Computer Graphics Library

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Found 24 item(s) authored in "1998".
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Master Thesis Importance Driven Halftoning
Lisa M. Streit.
University of Alberta, 1998. [BibTeX]

Master Thesis Interactive Non-Photorealistic Technical Illustration

Author(s): Amy A. Gooch.
Master Thesis: Department of Computer Science, University of Utah, December, 1998.
[BibTeX] Find this paper on Google

Current interactive modeling systems allow users to view models in wireframe or Phong-shaded images. However, the wireframe is based on the model's parameterization, and a model's features may get lost in a nest of lines. Alone, a fully rendered image may not provide enough useful information about the structure or model features. Human technical illustrators follow certain visual conventions that are unlike Phong-shaded or wireframe renderings, and the drawings they produce are subjectively superior to conventional computer renderings. This thesis explores lighting, shading, and line illustration conventions used by technical illustrators. These conventions are implemented in a modeling system to create a new method of displaying and viewing complex NURBS models. In particular, silhouettes and edge lines are drawn in a manner similar to pen-and-ink drawings, and a shading algorithm is used that is similar to ink-wash or air-brush renderings for areas inside the silhouettes. This shading has a low intensity variation so that the black silhouettes remain visually distinct, and it has a cool-to-warm hue transition to help accent surface orientation. Applying these illustration methods produces images that are closer to human-drawn illustrations than is provided by traditional computer graphics approaches.

PhD Thesis Interactive Topological Drawing
Robert Glenn Scharein.
Department of Computer Science, University of British Columbia, March, 1998. [BibTeX]

Technical Report Interleaved Dimension Decomposition
Manfred Kopp, Werner Purgathofer.
Institute of Computer Graphics and Algorithms, Vienna University of Technology, No. TR-186-2-98-03, A-1040 Karlsplatz 13/186/2, January, 1998. [BibTeX]

Article Line Art Illustrations of Parametric and Implicit Forms
Gershon Elber.
IEEE Transactions on Visualization and Computer Graphics, Vol. 4, No. 1, pp. 71--81, January, 1998. [BibTeX]

In Collection Mathematical Tools for Computer-Generated Ornamental Patterns
Victor Ostromoukhov.
Electronic Publishing, Artistic Imaging and Digital Typography, Lecture Notes in Computer Science 1375, Springer Verlag, pp. 193--223, 1998. [BibTeX]

Proceedings Painterly Rendering with Curved Brush Strokes of Multiple Sizes
Aaron Hertzmann.
SIGGRAPH 98 Conference Proceedings, pp. 453--460, Orlando, Florida, July, 1998. [BibTeX]

Article Penrose Tiling
Andrew Glassner.
IEEE Computer Graphics and Applications, Vol. 18, No. 4, pp. 78--86, July/August, 1998. [BibTeX]

Proceedings Rapid Approximate Silhouette Rendering of Implicit Surfaces
David J. Bremer, John F. Hughes.
Proceedings of Implicit Surfaces '98, pp. 155--164, June, 1998. [BibTeX]

Master Thesis Rendering Nonphotorealistic Strokes with Temporal and Arc-length Coherence
Lubomir D. Bourdev.
Brown University, May, 1998. [BibTeX]

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