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Found 10 item(s) authored by "William Baxter" .

Proceedings A Versatile Interactive 3D Brush Model

Author(s): William Baxter, Ming C. Lin.
Proceedings: 12th Pacific Conference on Computer Graphics and Applications (PG'04), October, 2004.
[BibTeX] Find this paper on Google

Abstract:
We present a flexible modeling approach capable of realistically simulating many varieties of brushes commonly used in painting. Our geometric model of brush heads is a combination of subdivision surfaces and hundreds of individual bristles represented by thin polygonal strips. We exploit bristle-to-bristle coherence, simulating only a fraction of the bristles and using interpolation for the remainder. Our dynamic model incorporates realistic physically-based deformation, including anisotropic friction, brush plasticity, and tip spreading. We use an energy minimization framework with a novel geometric representation of the brush head to generate a wider variety of brushes. Finally, we have developed an improved haptic model that provides realistic force feedback, directly related to the results of the brush dynamic simulation. Using this model, we are able to simulate a wide range of brush styles and create an excellent variety of strokes such as the crisp, curvy strokes of Western decorative painting, or rough scratchy strokes like certain Oriental calligraphy. We have also developed an exporter for a popular free 3D modeling package that makes it easier for non-programmers to create any desired style of brush, real or fanciful.


Article A Viscous Paint Model for Interactive Applications
William Baxter, Yuanxin Liu, Ming C. Lin.
The Computer Animation and Social Agents Conference (CASA), Vol. 15, No. 3-4, pp. 433--441, July, 2004. [BibTeX]

Article A viscous paint model for interactive applications
William Baxter, Yuanxin Liu, Ming C. Lin.
Computer Animation and Virtual Worlds, Vol. 15, No. 3-4, pp. 433--441, July, 2004. [BibTeX]

Proceedings DAB: Interactive Haptic Painting with 3D Virtual Brushes
William Baxter, Vincent Scheib, Ming C. Lin, Dinesh Manocha.
SIGGRAPH 2001, Computer Graphics Proceedings, Eugene Fiume, pp. 461--468, ACM Press / ACM SIGGRAPH, 2001. [BibTeX]

Proceedings IMPaSTo - A Realistic, Interactive Model for Paint
William Baxter, Jeremy Wendt, Ming C. Lin.
3rd International Symposium on Non-Photorealistic Animation and Rendering (NPAR'04), pp. 45--56, June, 2004. [BibTeX]

Article Locally Controllable Stylized Shading
Hideki Todo, Ken-ichi Anjyo, William Baxter, Takeo Igarashi.
ACM Transactions on Graphics, Vol. 26, No. 3, pp. 17:1--17:7, 2007. [BibTeX]

Article N-way morphing for 2D animation
William Baxter, Pascal Barla, Ken Anjyo.
Computer Animation and Virtual Worlds, Vol. 20, No. 2-3, pp. 79--87, 2009. [BibTeX]

Article Physically based virtual painting
Ming C. Lin, William Baxter, Vincent Scheib, Jeremy Wendt.
Communications of the ACM - Interactive immersion in 3D graphics, Vol. 47, No. 8, pp. 40--47, August, 2004. [BibTeX]

PhD Thesis Physically-Based Modeling Techniques for Interactive Digital Painting
William Baxter.
University of North Carolina, Department of Computer Science, 2004. [BibTeX]

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]

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