[Radiance-general] genBSDF question

[Greg Ward]

Hi Leyla,

All you can really do is play with the -c option and the rendering parameters.  You probably don't want to change -c in this case, but you can make the rendering go faster by altering the default options, which are:

	"-w -ab 5 -ad 700 -lw 3e-6"

You can try running:

	genBSDF -n 12 +f +b -geom meter -t4 5 -r "-ab 3 -ad 500 -lw 1e-5"  \
		reveal_glazing.rad venetian80.rad LChazed.rad > bsdf/v80_hazed_t45.xml

Also, I noticed that your blind slat material has 10% specularity, which probably isn't realistic unless it has a metallic coating.  I would expect the specularity to be 0.05 or less.  You are also better off specifying a non-zero roughness value unless the slats are really mirror-smooth.  

Cheers,
-Greg

> From: Leyla Sanati <leylasanati at gmail.com>
> Date: September 17, 2013 4:02:53 PM PDT
> 
> Hi all,
> 
> I am back with more questions about genBSDF. I have modeled a window with venetian blinds on the lower part and translucent louvers on the upper part of the window. I tried to run genBSDF with my geometry including the blinds, louvers, glazing and the window reveal, but I did not get any results back after 14 hours. 
> 
> I know genBSDF runtime is long, but I wonder if I am doing something wrong, or if I could change anything in my model that could make genBSDF run faster.
> 
> Attached are the geometry files. Here is what I typed:
> 
> genBSDF -n 12 +f +b -geom meter -t4 5 reveal_glazing.rad venetian80.rad LChazed.rad > bsdf/v80_hazed_t45.xm
> 
> Best,
> Leyla
> 
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