[Radiance-general] radiance programer in Chicago

[Greg Ward]

If the surfaces are "partly specular" then you can still treat it in  
mkillum.  If it is purely specular, or has a purely specular  
component, it gets a bit more complicated and you'd have to use the  
mirror type, but mkillum would still work so long as the surfaces are  
flat.  The photon mapping method really only applies when your  
surfaces are both highly specular and curved, which I don't think is  
the case, here.

Cheers,
-Greg

> From: "Lars O. Grobe" <grobe at gmx.net>
> Date: March 6, 2010 9:13:33 AM PST
>
> Hi Greg, George,
> actually that is an interesting question whether it can be  
> considered diffusing. a lensplate strays light, but it is not  
> diffuse (if it was it had to look white from below). Still it may be  
> a valid approach to treat it as diffuse in a model.
> Cheers
> Lars.