[Radiance-general] Triple glazing simulation

[Gregory J. Ward]

Hi Marija,

If you copy the glaze2.cal script and rename it "glaze3.cal", adding  
the following lines to the end of the file:

                                 { simple triple-pane reflectance }
cr3(r,t) :  r*(1 + t*t*(1 + t*t));

-------
Your glazing definition is then:

void BRTDfunc glaze3_unnamed
10
cr3(fr(0.074),ft(0.91))
cr3(fr(0.074),ft(0.91))
cr3(fr(0.074),ft(0.91))
ft(0.91)^3
ft(0.91)^3
ft(0.91)^3
         0 0 0
         glaze3.cal
0
9
         0 0 0
         0 0 0
         0 0 0

We probably should add a third glazing to the glaze.csh script, but  
it would complicate it by an order of magnitude due to the number of  
combinations involved.

-Greg