[Bf-cycles] GSoC - Spectral Rendering

[gottfried at blenderdiplom.com]

Quoting David <erwin94 at gmx.net>:
> So, the only effect that I can think of that is really not  
> approximated by RGB
> rendering is dispersion? I would love to see an image where the  
> light spectrum
> makes a noticeable difference, that isn't of a prism or a diamond...

The three use-cases I know about are:

* dispersion
* absorption in volumes
* scattering

Cheers,
Gottfried