Improving the Selection of Bases of BRDFs for Appearance Preservation

Nascimento, Fernando Melo; Carvalho, Andre B. de; Andrade, Beatriz Trinchão

doi:10.1109/sibgrapi.2016.067

Cited by 3 publications

(1 citation statement)

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“…Another approach is to estimate a linear combination of preexisting tabular BRDFs to provide materials based on data captured from real-world materials [12], [13]. A similar technique uses analytical BRDFs as components of the linear combination [14], [15].…”

Section: Introductionmentioning

confidence: 99%

Creation of Materials from Tabular BRDFs

Nunes¹,

Miranda²,

Andrade³

2022

Anais Estendidos Do XXXV Conference on Graphics, Patterns and Images (SIBGRAPI Estendido 2022)

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Rendering materials with a realistic appearance requires considering how they interact with the light. Bidirectional Reflectance Distribution Functions (BRDFs) are often used to achieve this goal. There are different ways to represent materials from BRDFs, which include tabular BRDFs, analytical models, and linear combinations of a BRDF database. In the last decade, the search for more realism in rendering increased the interest in using tabular BRDFs. However, this approach requires a long acquisition process and high storage space. This master dissertation proposes a pipeline to create new materials from a tabular BRDF database. During this process, we also explored two related topics: we compiled and proposed techniques to evaluate BRDFs, and developed an approach to preprocess and cluster a BRDF database. These researches presented insights and contributions that are useful for contexts other than ours and provided analysis that reinforced our choice of techniques to reach our goal. As a final result, our method creates new materials with realism and consistency.

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Section: Introductionmentioning

confidence: 99%