[Radiance-general] Re: sky definition part 2

[Zack Rogers]

Hi Santiago,

I've been buzzing with thoughts of Image Based Rendering and HDR 
displays ever since the conference, I've been showing Greg's Siggraph 
animation and your studies to all my colleagues.  I am very interested 
in getting into both of these in my daylighting design work.

Yeah, the IES recommends 94.2 lm/watt for direct beam --  IES is my 
master, but google does reign supreme;-) -- but I don't know how they 
think they can be so accurate when everyone else reports these 
relatively large ranges.

I plan on looking into the Perez sky model in more detail.  So you found 
it gave better correlation than the CIE model in your studies?  Is 
gendaylit available in any windows form yet?  If not I have I do have 
access to linux machines.

Georg, are there any plans to implement the Perez sky model (gendaylit) 
in Rayfront?

Thanks for the info!
Zack

PS I will send the elevation study separately as i think it will just 
turn binary here.
PPS but i need your e-mail address.  I can't seem to get it from the 
site.  Mine is zrogers@archenergy.com

-- 
Zack Rogers
Staff Engineer
Architectural Energy Corporation
2540 Frontier Avenue, Suite 201
Boulder, CO 80301 USA

tel (303)444-4149 ext.235
fax (303)444-4304
www.archenergy.com