[Radiance-general] Approximating the gross daylight flux throughvenetian blinds.

[Greg Ward]

Actually, the slat interreflection is significant, but modeling slats 
in the BRDTfunc directly won't incorporate such behavior, since the 
surface is flat and therefore doesn't see itself.  I have to model the 
interreflections mathematically, and that's the tricky part.  That's 
the part I think will take a day or two to work out, if I'm able to do 
it at all.

-Greg

> From: "Santiago Torres" <tiago at tkh.att.ne.jp>
> Date: October 29, 2004 2:31:02 PM PDT
>
> Yes, that`s what I meant. Now I understand the problem. I just thought 
> it
> would save some calculation of the interreflections between slats, but
> surely that`s not significant.
> Thank you for the clarification.
>
> Santiago