Non-Photorealistic Computer Graphics Library

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Found 2 item(s) authored by "Shuhei Wemler" Find Author on Google.

Proceedings Tweakable Light and Shade for Cartoon Animation
Ken Anjyo, Shuhei Wemler, William Baxter.
NPAR '06: Proceedings of the 4th international symposium on Non-photorealistic animation and rendering, pp. 133--139, New York, NY, USA, ACM Press, 2006. [BibTeX]

Proceedings Tweaking stylized light and shade

Author(s): Ken Anjyo, Shuhei Wemler.
Proceedings: ACM SIGGRAPH2004 Sketches, 2004.
[BibTeX] Find this paper on Google

Light and shade in non-photorealistic rendering, such as for digital cel animation, should be symbolic, rather than realistic, in order to depict the scene in a simple, yet impressive way. This sketch presents a new method of creating and editing the stylized light and shade in real-time by direct manipulation for an on-screen surface to be cartoon-shaded. The manipulation simply means dragging the shaded area including highlight on the surface. The drag operations then offer an intuitive, interactive tool not only in changing the light source, but also in designing the stylized highlight shape. Our prototype system includes the algorithms in this method along with a realtime cartoon shader, and is built up with programmable graphics hardware.

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