Antwort: [Radiance-general] simulation of an internal roller blind

[Pierre-Felix Breton]

Hi!
 
this is interesting info.   i would like to know why the use of a factor of
1.088579?  Sorry if I missed something already.
 
Best regards,
 
Pierre-Félix Breton
----------------------------------------------------
pfbreton at pfbreton.com
www.pfbreton.com <http://www.pfbreton.com/> 
 

  

-----Original Message-----
From: radiance-general-bounces at radiance-online.org
[mailto:radiance-general-bounces at radiance-online.org] On Behalf Of Andreas
Lahme
Sent: Wednesday, February 15, 2006 1:00 PM
To: Radiance general discussion
Subject: Antwort: [Radiance-general] simulation of an internal roller blind


Dear Caroline,
 
I'd recommend to combine the radiance materials glass and trans assigned to
two planes.
 
1. With the material glass you take into account the angular reduction of
transmission (which the trans material doesn't have). To achieve a
transmission of 2.5% you should use for the R, G and B value of (2.5% *
1.088579).
 
2. To give the roller blind a diffuse transmission you can add the material
trans to the second plane. Here you should use for the R, G and B value 1
(100% transmission). The diffuse part of transmission you can control via
the 7 th parameter (0 = all diffuse).
 
Hope this helps.
 
Kind regards
 
Andreas
 
ALware Andreas Lahme
Leopoldstr. 7a
D-38100 Braunschweig
GERMANY
Fon: +49 . 531 / 250 72 - 80
Fax: +49 . 531 / 250 72 - 81
Mail: a.lahme at alware.de
Internet: www.alware.de
 
 
 
 
 
-----Ursprüngliche Nachricht-----
Von: Radiance general discussion
Gesendet: 15.02.2006 18:39
An: radiance-general at radiance-online.org
Betreff: [Radiance-general] simulation of an internal roller blind


Dear Radiance-users,

I would like to simulate in RADIANCE an internal roller blind, which has
according to the supplier (unfortunately they do not know more) the
following properties:

as optical properties(reference to T65): 
transmission: 2,5 %
reflection (to the outside): 71,8 %

could anybody give me please a hint which is the best way to implement this
in RADIANCE?
I could accept a simplification, but what kind of material is the best
choice to do so (glass, trans)? 
Has anybody experiences with this?

I would appreciate any help,

sincerely yours,

Caroline


-- 
Telefonieren Sie schon oder sparen Sie noch?
NEU: GMX Phone_Flat http://www.gmx.net/de/go/telefonie

_______________________________________________
Radiance-general mailing list
Radiance-general at radiance-online.org
http://www.radiance-online.org/mailman/listinfo/radiance-general

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://radiance-online.org/pipermail/radiance-general/attachments/20060215/74c221c6/attachment.htm