[Radiance-general] sunpipes

[Lars O. Grobe]

>
> Has anybody got any pointers on modelling Sunpipes or light tubes?
>
> I'm guessing the approach may involve separating the problem in to  
> two domains: The pipe itself with a high level of ambient bounce and  
> then the diffuser/ room setup.

Hi Chris!

Typical light pipes are made of highly specular surfaces, thus the  
ambient bounces is not the most critical. The questions are

- rectangular or round section
- only specular or specular plus diffuse
- sunny or overcast / cloudy sky

Have a look at the photon map if you need a very general approach.

Cheers,

Lars.