Conditioning anisotropic BSDF measurements for lighting and daylighting simulation

TitleConditioning anisotropic BSDF measurements for lighting and daylighting simulation
Publication TypeReport
Year of Publication2012
AuthorsGregory J Ward
Date Published09/2012
CityBerkeley
TypeDOE/ LBNL FY12 Technical Report Deliverable
Abstract

This report describes the requirements for utilizing bidirectional scattering distribution function (BSDF) measurements produced by the PAB-Opto goniophotometer and similar devices in simulation tools such as Radiance, and describes progress to date in implementing these methods. An interpolation technique has been identified for resampling the measured data, and an initial implementation has been produced. Work continues on improving this technique and software so it may be employed in a streamlined process for reducing BSDF measurements to a usable form and distributed as variable-resolution XML data. This data may then be employed by lighting simulation software to model complex fenestration systems.

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