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 language||English (US)|
|Number of pages||21|
|Journal||LEUKOS - Journal of Illuminating Engineering Society of North America|
|State||Published - Apr 1 2011|
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics