[Radiance-general] Colored BSDF

[Greg Ward]

Hi Jon,

Both Klems and tensor tree representations currently support tristimulus color data and the rendering tools use this information.  You can create some (for example) using the +C option of genBSDF.  There are other ways to do it based on measurements, but they require considerably more effort.  (The WINDOW program doesn't know about the color XML extensions at this point.)

Best,
-Greg

> From: Jon Sargent <j.a.sargent at gmail.com>
> Date: February 6, 2019 9:12:23 AM PST
> 
> At present, is there any way to provide colored BSDF data to Radiance?  E.g., would rtrace/rcontrib have any idea what to do with discrete (rather than integral) WavelengthData in the XML file?  I'm asking because CF systems often have a significant color component -- and one that varies between transmission and front and back reflection (think coated glazing plus white blinds).
> 
> Jon
> 
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