[Radiance-general] Re Re: trans or glass material, rectangular, luminous opening problem

[Christian Fusenig]

Hi Greg, hi Rob,

thanks so far with the -ds and -dj options. Yes Rob i meant the 
appearance of the illuminance patch.
Concerning the glass with the values of a Lee color filter i just want 
to make sure that i got all right:
I calculated the RGB values from the spectrum, taking in consideration 
that Y is not =1 but 0.642.
Then i got the transmissivity which is 0.92.
I multiplied my RGB values with 0.92 and thats it, or not?

Is there some kind of "roughness" for glass too? The glass with the 
filter on top is too "glossy", reflective, shiny or whatever you would 
call it. I would want it more "dull". ( I dont know if this is the right 
term in this context)

Christian