[Radiance-general] Simulating rooms with blinds: performance

[Randolph M. Fritz]

Great, thanks!

On 2011-01-14 15:40:42 -0800, Greg Ward said:

> 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


-- 
Randolph M. Fritz • RFritz at lbl.gov
Environmental Energy Technologies Division • Lawrence Berkeley Labs