[Radiance-general] Metal roofing

[Fitzsimmons, Rob]

Can someone point me to a cal file, or a method to make a metal roof?

Something with a profile like this ASCII art
        __           __
_______|  |_________|  |____   etc...


Even a brightdata (without the ridge geometry) that would indicate the
ridges.
I thought there was one in the sample Radiance files (cabin, etc) but I
can't find it.

Thanks

BTW - progress renders are here...
http://www.rastermon.com/Remodel.htm


Rob
-----Original Message-----
From: Fitzsimmons, Rob [mailto:rob.fitzsimmons at summit.fiserv.com] 
Sent: Friday, May 26, 2006 11:24 AM
To: 'Radiance-general at radiance-online.org'
Subject: RE: RE: [Radiance-general] Art work surface


 
Here is version 1 of our remodel

http://www.geocities.com/rastermon/Version1.html
The designer is using Sketchup and I'm rendering with - of course -
Radiance. Composite done in photosop.  Radiance view did not match pic, so I
did a little skewing in PS.

Thanks for all the input on art lighting - I'll post  pics as it comes
along.

Rob
-----Original Message-----
From: Lars Grobe
To: Radiance general discussion
Sent: 5/26/2006 2:05 AM
Subject: Re: RE: [Radiance-general] Art work surface

Hi Thomas!

> They were directed to north because they had to be huge and you had to 
> avoid direct sunlight. Northern light also varies not much over the 
> day.

Ok... that is what I wanted to describe as continous ;-)))

> Only directional light would indeed be irritating but you need a 
> certain directional component to render the shape.

Well, if you have no clear window at all you also might get mad.

> No! Don't use that stuff! We had an exhibition pavillion in my 
> university built with honeycomb insulation between two glass profiles. 
> The profiles alone might have worked well but the building inspector 
> insisted in an insulation of the wall. The honeycombs diffuse the 
> light so much that there is hardly a directional component left. It 
> looks odd and the sculptures and architectural modells are shaded 
> poorly even if the interior is rather bright.

That sounds interesting, as I actually do not have experienced such a room.
Were the panels used on all sides or to one direction only? My idea was to
have a big diffuse-translucent wall (only) to north. Also Ithink that for an
exhibition pavillion, especially for architectural models, a diffuse
environment is a terrific idea. All those I know use spots to take fotos of
their models and to show them (of course with a diffuse environment around).

But I really wonder on the impact of these panels on color, did you
experience any noticable effect? It would also interesting to know what
happens after some years, at least with those based on plastics (I would not
worry about the glass-based products, but I am also not sure here).
Christopher has done validation work on such panels, maybe he has more to
say about it.


> 
> Thomas
> 
>
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