[Radiance-general] CIE version in gensky

[Greg Ward]

I agree.  If it's not too much trouble to update gensky and we can do it properly, I'm all in favor of including this in the main distro.

-Greg

> From: Rob Guglielmetti <rob.guglielmetti at gmail.com>
> Subject: Re: [Radiance-general] CIE version in gensky
> Date: January 14, 2015 2:11:30 PM PST
> 
> Seems like a nice thing to include in Radiance proper, no? 
> 
> On Wed, Jan 14, 2015 at 3:06 PM, Phillip Greenup <Phillip.Greenup at arup.com> wrote:
> Hi Lars and all,
> 
>  
> 
> Thanks for the plug Lars!
> 
>  
> 
> For anyone interested in my cal file (from several years ago), let me know and I can send it through.
> 
>  
> 
> Cheers,
> 
> Phil.
> 
>  
> 
> Dr Phillip Greenup
> 
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>  
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> 
> From: Lars O. Grobe [mailto:grobe at gmx.net] 
> Sent: Thursday, 15 January 2015 9:02 AM
> To: Radiance general discussion
> Subject: Re: [Radiance-general] CIE version in gensky
> 
>  
> 
> Hi,
> 
>  
> 
> I missed that thread, so a late reply. While having the current CIE skies in gensky would certainly nice, we do not really depend on it. Philip Greenup had the models implemented in  a little cal-file (ssldlum.cal), which used to be on www.radiance-online.org in the patches-directory but disappeared with the installation of the new web-site.
> 
>  
> 
> Still, the file is documented on page 251 of Philip's thesis (a highly recommended reading, not only that one page..). For a quick pragmatic problem-solving copy&paste will do: http://eprints.qut.edu.au/15936/1/Philip_Greenup_Thesis.pdf
> 
>  
> 
> Cheers, Lars.
> 
>  
> 
>  
> 
> Zack Rogers developed a module for Python (IES_gensky.py) that is part of SPOT and updates the gensky model.
> 
>  
> 
> I also seem to remember that in one of the early Radiance workshops there was a reference to an updated CIE sky generator that could produce all 15 standard sky models. I don't think it ever got a public release but the source files were exchenged off-list now and then.
> 
>  
> 
> Regards,
> 
> Thomas
> 
>  
> 
> On Mon, Nov 17, 2014 at 2:09 PM, Ehsan <em.vazifeh at gmail.com> wrote:
> 
> 
> Hi Dr. Ward,
> 
>  
> 
> I will happy to have latest version of sky model. I know it is time consuming to program and update the gensky but as its part of my research work, I'll be glad if I can take part in updating it.
> 
> Cheers,
> 
> Ehsan
> 
> 
> On 17 Nov 2014, at 02:40, Greg Ward <gregoryjward at gmail.com> wrote:
> 
> Hi Ehsan,
> 
>  
> 
> The gensky command has overcast and clear sky distributions based on an older CIE standard.  I don't remember which one, but gensky was written in the late 80's.  Subsequently in 1991 or so, I added an "intermediate" sky type, but I'm not sure it adheres to the newer 2002 standard.
> 
>  
> 
> Most people who care about the sky distribution using gendaylit, but if enough people really want it, I could see about updating gensky to the current CIE standard(s).
> 
>  
> 
> Cheers,
> 
> -Greg
> 
> 
> 
> 
> From: "Ehsan M.Vazifeh" <em.vazifeh at gmail.com>
> 
> Subject: [Radiance-general] CIE version in gensky
> 
> Date: November 15, 2014 9:28:12 AM EST
> 
>  
> 
> Dear All,
> 
>  
> 
> I have a lazy question, what is the latest version of CIE sky used in gensky at the moment? their latest update was in 2002 (CIE GENERAL SKY STANDARD DEFINING LUMINANCE DISTRIBUTIONS) if I am correct.
> 
>  
> 
> Cheers,
> 
> Ehsan
> 
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