[Radiance-general] Angular selectivity of blinds

[Richard Clibborn]

Greg,

Thanks for that.  I'm just a little unsure about the orientation of 
this "aligned with x-y plane" in the header .. is this absolute (ie. the 
project x-y plane) or does it automatically align with the surface it is being 
applied to.  Sorry if this is a stupid question, it's just I have had trouble 
before simulating fritting with mixfunc and different surface orientations.

Cheer,
Richard.

> Hi Richard,
> 
> Attached is a .cal file which is distributed with the latest version of 
> Radiance, I believe.  It allows you to specify the spacing of a 
> grating, and it comes up with a reasonable approximation to the angular 
> transmission.
> 
> -Greg
> 
>