Non-Photorealistic Computer Graphics Library

[ home · search · about · links · contact · rss ] [ submit bibtex ] [ BookCite · NPR Books ]

User:

Pass:

Found 4 item(s) authored by "Elaine Cohen" .

Proceedings A Non-Photorealistic Lighting Model For Automatic Technical Illustration

Author(s): Amy A. Gooch, Bruce Gooch, Peter Shirley, Elaine Cohen.
Proceedings: SIGGRAPH 98, pp. 447--452, July, 1998.
[BibTeX] [DOI] Find this paper on Google

Abstract:
Phong-shaded 3D imagery does not provide geometric information of the same richness as human-drawn technical illustrations. A non-photorealistic lighting model is presented that attempts to narrow this gap. The model is based on practice in traditional technical illustration, where the lighting model uses both luminance and changes in hue to indicate surface orientation, reserving extreme lights and darks for edge lines and highlights. The lighting model allows shading to occur only in mid-tones so that edge lines and highlights remain visually prominent. In addition, we show how this lighting model is modified when portraying models of metal objects. These illustration methods give a clearer picture of shape, structure, and material composition than traditional computer graphics methods.

Proceedings Computer generated Celtic design
Matthew Kaplan, Elaine Cohen.
13th Eurographics workshop on Rendering, Non-photorealistic rendering, pp. 9--19, 2003. [BibTeX]

Proceedings Interactive Artistic Rendering
Matthew Kaplan, Bruce Gooch, Elaine Cohen.
1st International Symposium on Non-Photorealistic Animation and Rendering (NPAR'00), pp. 67--74, Annecy, France, June 05 - 07, 2000. [BibTeX]

Proceedings Pattern Oriented Remeshing for Celtic Design
Matthew Kaplan, Emil Praun, Elaine Cohen.
12th Pacific Conference on Computer Graphics and Applications (PG'04), Seoul, Korea, 2004. [BibTeX]

Visitors: 119806