[Radiance-general] Sources for material reflectances

[Christopher Rush]

A few additional resources, but I cannot certify their accuracy:

Click Chooser tab on this page to view RAL, Munsell, Dulux, and building material lists. A note will pop up indicating the source of information when you pick each material list.
http://www.jaloxa.eu/resources/radiance/colour_picker/index.shtml

http://arch.xtr.jp/radiance/mat_database.htm

http://www.artifice.com/radiance/radmatlib.html



-----Original Message-----
From: Greg Ward [mailto:gregoryjward at gmail.com] 
Sent: Friday, April 15, 2011 9:48 PM
To: Radiance general discussion
Subject: Re: [Radiance-general] Sources for material reflectances

Hi Krystyna,

Google led me straight to a little Radiance material collection at the BPS wiki site:

	http://archbps1.campus.tue.nl/bpswiki/index.php/Radiance

I wish there were more there, but the nice thing about a wiki is that everyone can contribute.  Measuring materials and getting them right in Radiance is time-consuming, and usually tackled on a per-model basis.  As an architect, I'm sure you appreciate how variable even something as basic as gray masonry blocks can be.  Even if manufacturers produced to a uniform reflectance, the material pattern and scale can vary significantly.  Nevertheless, it would be a big help to just have a comprehensive set of generic materials.

We should probably link the above in Francesco Anselmo's wiki site, which is also worth a look

	http://www.bozzograo.net/radiancewiki/doku.php?id=material_collections

Best,
-Greg

> From: Krystyna Zelenay <kzelenay at berkeley.edu>
> Date: April 15, 2011 4:19:10 PM PDT
> 
> Hi,
> 
> I was wondering whether there are any comprehensive sources with 
> material visible light reflectances (for a range of construction 
> materials)? I have come across publications that have some information 
> but they typically contain only a few material reflectances, rarely 
> more than 20 and do not go into much detail about anticipated 
> variations in material reflectances. I often I have to look up one 
> material reflectance in one source and then look for another material 
> in another source.
> 
> I looked through the Radiance archives and while the question of a 
> database has come up before, it sounds like there is no such database?
> Is there at least a relatively comprehensive source one could 
> reference for architectural lighting analyses?
> 
> Thank you,
> 
> Krystyna

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