[Radiance-general] Simulating rooms with blinds: performance

[Greg Ward]

Hi Randolph,

Have you looked through Axel's tutorial?  You'll need to run genBSDF if you don't have WINDOW6 data to get a BSDF for your blinds.  Andy can help you with that if you need help.

Cheers,
-Greg

> From: "Randolph M. Fritz" <RFritz at lbl.gov>
> Date: January 14, 2011 2:37:56 PM PST
> 
> Greg, I'm confused as to how rtcontrib would apply in my blinds case.  I think it falls under "arbitrary input-output relationships in optical systems," but I am not sure how to do this for my blinds.  Did you do a presentation on this?  Something I could read?  Or...?
> 
> Randolph
> 
> On 2011-01-05 12:50:05 -0800, Greg Ward said:
> 
>> Hi Randolph,
>> Depending on whether you need to compute the direct component precisely or not, the optimal calculation of a space with venetian blinds is going to come from rtcontrib or mkillum with a BSDF file describing the blinds.  If you use genBSDF to create this file, the geometry is inserted into the final model using mkillum.  If you don't care so much about the direct component (sunlight passing between the slats onto interior surfaces), then rtcontrib will be much faster if you are computing many time points.  My feeling is that this should work well enough for glare evaluations.
>> Cheers,
>> -Greg