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Sketch and Paint-based Interfacefor Highlight Modeling

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Abstract

In computer graphics, highlights capture much of the appearance of light reflection off a surface. They are generally limited to pre-defined models (e.g., Phong, Blinn) or to measured data. In this paper, we introduce new tools and a corresponding highlight model to provide computer graphics artists a more expressive approach to design highlights. For each defined light key-direction, the artist simply sketches and paints the main highlight features (shape, intensity, and color) on a plane oriented perpendicularly to the reflected direction. For other light-andview configurations, our system smoothly blends the different user-defined highlights. Based on GPU abilities, our solution allows real-time editing and feedback. We illustrate our approach with a wide range of highlights, with complex shapes and varying colors. This solution also demonstrates the simplicity of introduced tools
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Dates and versions

inria-00277102 , version 1 (05-05-2008)

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Romain Pacanowski, Xavier Granier, Christophe Schlick, Poulin Pierre. Sketch and Paint-based Interfacefor Highlight Modeling. Fifth Eurographics conference on Sketch-Based Interfaces and Modeling, Jun 2008, Annecy, France. ⟨10.2312/SBM/SBM08/017-023⟩. ⟨inria-00277102⟩

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