Simulation of the BSDF measurement capabilities for various materials with GCMS-4 gonio-spectrophotometer

Dmitry D. Zhdanov; Igor S. Potemin; Vadim G. Sokolov; Alexey A. Garbul; Alexey G. Voloboy; Vladimir A. Galaktionov

doi:10.1117/12.2245739

31 October 2016 Simulation of the BSDF measurement capabilities for various materials with GCMS-4 gonio-spectrophotometer

Dmitry D. Zhdanov, Igor S. Potemin, Vadim G. Sokolov, Alexey A. Garbul, Alexey G. Voloboy, Vladimir A. Galaktionov

Author Affiliations +

Proceedings Volume 10021, Optical Design and Testing VII; 1002116 (2016) https://doi.org/10.1117/12.2245739
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Physically accurate lighting simulation requires precise account of the optical properties (BSDF) which are usually measured using gonio-spectrophotometer. In this paper, the authors analyzed the accuracy of BSDF shape measured for later use of measurements in special software for photorealistic visualization and virtual prototyping. Visual and numerical analysis were done. In the first case we look at the sample image rendered under specified lighting conditions, replacing its properties on measurement results and visually estimate the similarity (or difference). In the second case we compare the results of simulation of spatial or angular radiance distribution with results of corresponding radiometric measurements.

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Dmitry D. Zhdanov, Igor S. Potemin, Vadim G. Sokolov, Alexey A. Garbul, Alexey G. Voloboy, and Vladimir A. Galaktionov "Simulation of the BSDF measurement capabilities for various materials with GCMS-4 gonio-spectrophotometer", Proc. SPIE 10021, Optical Design and Testing VII, 1002116 (31 October 2016); https://doi.org/10.1117/12.2245739

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