Bruno Cabasson scripsit::
> Hi all!
> 
> Here is a simple scene with photons and dispersion for a simple shape made
> of glass. The dispersion coefficient is high (1.035) in order to produce a
> desired exagerated effect.
> 
> I have one concern with this result: the shadow of the shape on the ground
> does not seem to be anti-aliased. What's up?
> 

Ponctual light do not produce soft-shadow. you would need an
area_light for that kind of effect.

> I also see bandings and white spots near the Sphere/cylinder edge on the
> shadow. Numerical artifacts for the latter, and too few photons for the
> former?
> 

I do not know. may be it's just how it would be in reality...

> The render time is about 1:15 hours, mainly taken by the shape, on Win, P4,
> 2.8 GHz for 1024*768 resolution.
> 
> The code is short so I can put it hereafter.

Thanks!

> 
> Comments and suggestions welcome.
> 
>     Regards.


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