[Radiance-general] Mkillum Question

[Terrance McMinn]

Hello Greg,

>The reason for the change is because the glass primitive takes into  
>account internal reflections, which use the transmission value to  
>compute transmittance as a function of angle.  In contrast, the illum  
>primitive doesn't account for these, which are reintroduced using the  
>winxmit.cal pattern.  This pattern is normalized to 100%  
>transmittance, and must have normal transmittance as a multiplier on  
>the material.

>I don't know how to make it clearer than that -- I realize it's a bit  
>confused, but it is correct.

The missing link in the documentation! Quite clear!

Many thanks.

Regards 

Terry Mc Minn
Faculty of Built Environment, Art and Design
Curtin University of Technology
GPO Box U 1987 Perth 6845
Western Australia
Email: T.Mcminn at curtin.edu.au
CRICOS Provider Code: 00301J