Simulating Complex Window Systems using BSDF Data

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Nowadays, virtual models are commonly used to evaluate the performance of conventional window systems. Complex fenestration systems can be difficult to simulate accurately not only because of their geometry but also because of their optical properties that scatter light in an unpredictable manner. Bi-directional Scattering Distribution Functions (BSDF) have recently been developed based on a mixture of measurements and modelling to characterize the optics of such systems. This paper describes the workflow needed to create then use these BSDF datasets in the Radiance lighting simulation software. Limited comparisons are made between visualizations produced using the standard ray-tracing method, the BSDF ... continued below

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Konstantoglou, Maria; Jonsson, Jacob & Lee, Eleanor June 22, 2009.

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Nowadays, virtual models are commonly used to evaluate the performance of conventional window systems. Complex fenestration systems can be difficult to simulate accurately not only because of their geometry but also because of their optical properties that scatter light in an unpredictable manner. Bi-directional Scattering Distribution Functions (BSDF) have recently been developed based on a mixture of measurements and modelling to characterize the optics of such systems. This paper describes the workflow needed to create then use these BSDF datasets in the Radiance lighting simulation software. Limited comparisons are made between visualizations produced using the standard ray-tracing method, the BSDF method, and that taken in a full-scale outdoor mockup.

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  • 26th Conference on Passive and Low Energy Architecture, Quebec City, Canada, 6/22/2009 - 6/24/2009

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  • Report No.: LBNL-4416E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 1012243
  • Archival Resource Key: ark:/67531/metadc839976

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  • June 22, 2009

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • July 5, 2016, 1:44 p.m.

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Konstantoglou, Maria; Jonsson, Jacob & Lee, Eleanor. Simulating Complex Window Systems using BSDF Data, article, June 22, 2009; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc839976/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.