RAYMOND, Boris; GUENNEBAUD, Gael; BARLA, Pascal

doi:10.1145/2897824.2925945

Metadatos

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Licencia de uso del documento

RAYMOND, Boris
Université de Bordeaux [UB]
Melting the frontiers between Light, Shape and Matter [MANAO]

GUENNEBAUD, Gael
Melting the frontiers between Light, Shape and Matter [MANAO]

BARLA, Pascal
Melting the frontiers between Light, Shape and Matter [MANAO]

Idioma

Article de revue

Este ítem está publicado en

ACM Transactions on Graphics. 2016-07-26

Association for Computing Machinery

Resumen en inglés

We introduce a Spatially-Varying BRDF model tailored to the multi-scale rendering of scratched materials such as metals, plastics or finished woods.Our approach takes advantage of the regular structure of scratch distributions to achieve high performance without compromising visual quality.We provide users with controls over the profile, micro-BRDF, density and orientation of scratches, while updating our material model at interactive rates.The BRDF for a single scratch is simulated using an optimized 2D ray-tracer and compactly stored in a three-component 2D texture.In contrast to existing models, our approach takes into account all inter-reflections inside a scratch, including Fresnel effects.At render time, the SV-BRDF for the scratch distribution under a pixel or ray footprint is obtained by linear combination of individual scratch BRDFs.We show how to evaluate it using both importance and light sampling, in direct and global illumination settings.< Leer menos

Palabras clave en inglés

Anisotropic BRDF

real-time rendering

multi-scale

URI

https://oskar-bordeaux.fr/handle/20.500.12278/181956

DOI

http://dx.doi.org/10.1145/2897824.2925945

Proyecto europeo

Perceptual Representation of Illumination, Shape and Material

Proyecto ANR

Représentation et manipulation de formes extrement détaillées - ANR-14-CE24-0004

Orígen

Importado de Hal

Centros de investigación

Laboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298