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Reports (Research Report) Year : 2010

Bidirectional Appearance Distribution Function for Stylized Shading

Abstract

We define a new shading tool called a Bidirectional Appearance Distribution Function (BADF) tailored to the direct control of stylized appearance. A BADF can be thought of as defining the appearance of a sphere from all possible illumination directions. Our BADF formulation generalizes and improves upon previous stylized shading techniques by enabling the direct control of shading profiles in screen space, exaggerating surface features in a flexible manner, and letting users control stylized appearance from multiple lighting or viewing directions. This allows users to start from a simple shading behavior, and refine from there towards greater stylization. Our GPU implementation works in real-time, which benefits both editing, and rendering in interactive systems. These features make BADFs an efficient tool for many applications in artistic and scientific illustration domains.
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Dates and versions

inria-00454187 , version 1 (08-02-2010)

Identifiers

  • HAL Id : inria-00454187 , version 1

Cite

David Vanderhaeghe, Romain Vergne, Pascal Barla, William Baxter. Bidirectional Appearance Distribution Function for Stylized Shading. [Research Report] RR-7195, INRIA. 2010, pp.16. ⟨inria-00454187⟩
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