Simulating the daylight performance of complex fenestration systems using bidirectional scattering distribution functions within radiance

G. Ward, R. Mistrick, E. S. Lee, A. McNeil, J. Jonsson

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

We describe two methods which rely on bidirectional scattering distribution functions (BSDFs) to model the daylighting performance of complex fenestration systems (CFS), enabling greater flexibility and accuracy in evaluating arbitrary assemblies of glazing, shading, and other optically-complex coplanar window systems. Two tools within Radiance enable a) efficient annual performance evaluations of CFS, and b) accurate renderings of CFS despite the loss of spatial resolution associated with low-resolution BSDF datasets for inhomogeneous systems. Validation, accuracy, and limitations of the methods are discussed.

Original languageEnglish (US)
Pages (from-to)241-261
Number of pages21
JournalLEUKOS - Journal of Illuminating Engineering Society of North America
Volume7
Issue number4
DOIs
StatePublished - Apr 1 2011

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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