[Radiance-general] trans material

[Friedemann Kik]

Hi all,
I should simulate a screen material with highly specular reflection
(0.8) at one side like aluminized matrial  an a totally diffuse
transmission of  about 0.1.
The parameter of spec for trans material isn't described very well in
'Rendering with Radiance' so I couldn't understand it. Does a numer of 1
spec means a totally specularity for diffuse and direct light ? If so
should I use somthing like this:
 
screen trans spec-diff_80-10
0 0 7 1 1 1 .8 0 .1 0
 
correct? Or does anybody know a BRTDfunc material definition for this
issue?
 
Thanks for help!
 
Friedemann Kik
Transsolar Stuttgart
 
 
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