01571nas a2200277 4500008004100000022001400041050001500055245014200070210006900212260001200281490000600293520063000299653005800929653003300987653002401020653001101044653002201055653002001077653001201097100002201109700002601131700002101157700001901178700002301197856007301220 2011 eng d a1550-2724 aLBNL-4414E00aSimulating the Daylight Performance of Complex Fenestration Systems Using Bidirectional Scattering Distribution Functions within Radiance0 aSimulating the Daylight Performance of Complex Fenestration Syst c04/20110 v73 a
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.
10abidirectional scattering distribution function (BSDF)10aComplex fenestration systems10adaylighting systems10aenergy10aRadiance software10aShading Systems10awindows1 aWard, Gregory, J.1 aMistrick, Richard, G.1 aLee, Eleanor, S.1 aMcNeil, Andrew1 aJonsson, Jacob, C. uhttps://facades.lbl.gov/publications/simulating-daylight-performance