Hi,
I'm working on a project with glazing options that
have different internal reflectances. What's the best
way to model this? I'm thinking trans with 100%
specular transmission and changing the specular
reflectance.
Any ideas?
(I'm cross-posting this on Radiance and DR sites.)
Cheers
Nick L
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Hi Nick,
I was waiting for someone else to answer your query, but I guess it's not happening.
The best option is probably the new "glaze" script in Radiance 3.6, but there's no man page and you'll have to dig into the C-shell source a bit to see how to specify your own material properties.
The next option is to do as you suggest and vary the specularity of a trans primitive. The downside to this (other than figuring out what the heck to set the parameters to) is it won't account for variations in reflectance with incident angle. For this, you would have to use the glaze script if you have something other than a piece of clear or absorbing glass.
-Greg
P.S. If you are stuck with Desktop Radiance, you're out of luck with regards to glaze. But, you could use Francesco Anselmo's Cygwin version:
http://www.dream.unipa.it/dream/pub/dot/anselmo/radiance/cygwin/radiance_cygwin_3R6P1.tar.gz
From: Nicholas Lander <[email protected]>
Date: January 23, 2005 4:52:32 PM PSTHi,
I'm working on a project with glazing options that
have different internal reflectances. What's the best
way to model this? I'm thinking trans with 100%
specular transmission and changing the specular
reflectance.Any ideas?
(I'm cross-posting this on Radiance and DR sites.)Cheers
Nick L