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

Proceedings A Versatile Interactive 3D Brush Model
William Baxter, Ming C. Lin.
12th Pacific Conference on Computer Graphics and Applications (PG'04), October, 2004. [BibTeX]

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

Author(s): William Baxter.
PhD Thesis: University of North Carolina, Department of Computer Science, 2004.
[BibTeX] Find this paper on Google

In this dissertation I present a novel, physically-based approach to digital painting. With the interactive simulation techniques I present, digital painters can work with digital brushes and paints whose behavior is similar to real ones. Using this physicallybased approach, a digital painting system can provide artists with a versatile and expressive creative tool, while at the same time providing a more natural style of interaction enabled by the emulation of real-world implements. I introduce several specific modeling techniques for digital painting. First, I present a physically-based, 3D, deformable, virtual brush model based on non-linear quasi-static constrained energy minimization. The brush dynamics are computed using a skeletal physical model, which then determines the motion of a more complex geometric model. I also present three different models for capturing the dynamic behavior of viscous paint media, each offering a different trade-off between speed and fidelity—from 2D heuristics, to 3D partial differential equations. Accurate modeling of the optical behavior of paint mixtures and glazes is also important, and for this I present a real-time, physicallybased rendering technique, based on the Kubelka-Munk equations and an eight-sample color space. Finally, I present techniques for modeling the haptic response of brushes in an artist’s hand, and demonstrate that all these techniques can be combined to provide the digital painter with an interactive, virtual painting system with a working style similar to real-world painting.

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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