[Radiance-general] Glare Index calculation

[G V DEEPAK]

Thanks a lot  Mr Bleicher, I would try these options out and see 
if they work out.

Thanks again.

 On Fri Dec 05 08:26:38 EST 2008, Thomas Bleicher 
<tbleicher at arcor.de> wrote:

> Hello again.
> 
>  From a quick look at the scripts I would change the following:
> 
> finalmultiplesim1.csh:
> 
> You have very low quality settings for the rtrace command
> (basically left at the defaults). I would at least increase '-ad'
> and add '-as' unless you know it's not going to change the
> results.
> 
> newglares.csh:
> 
> You calculate a picture for findglare with default view settings
> (-vtv and -vv 60 -vh 60). The findglare man page recommends
> to use a fisheye (-vta) and 180 degrees for the view angles. With
> your images findglare has a lot to compute from the octree.
> 
> The rpict options are left at the defaults (including ab=0!). I 
> don't
> think that's your intention.
> 
> findglare itself could do with more options as well. Best thing
> to do is to set the rpict/rtrace options in  a variable and use
> this on the command line for all of the commands (rtrace, rpict
> and findglare).
> 
> You also should look at the way how findglare works. The
> default threshold to identify glare is 7 times above the average.
> Given that you're looking at a bright window (very large
> source) you may never find a glare source unless you're
> looking directly into the sun. If that's all you need, fine, 
> otherwise
> you have to work out a reasonable threshold for your scene.
> 
> 
> Regards,
> Thomas
> 
> 
> 
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> 
> 



G V DEEPAK
Graduate student and Research Assistant
M.E. Rinker, Sr. School of Building Construction.
University Of Florida.