%0 Journal Article %K Windows %K Daylighting %K Validation %K Building energy simulation tools %K Bidirectional scattering distribution function (BSDF) %K Solar heat gains %A Eleanor S Lee %A David Geisler-Moroder %A Gregory J Ward %B Solar Energy %D 2018 %G eng %P 380 - 395 %R 10.1016/j.solener.2017.12.029 %T Modeling the Direct Sun Component in Buildings Using Matrix Algebraic Approaches: Methods and Validation %V 160 %2 LBNL-2001102 %8 01/2018 %! Solar Energy