Paolo Gibellini wrote:
> Hallo!
> I'm searching to replicate the effect marked in the included photo: little
> waves on the surface of the sea concentrate solar rays and we have subtle
> stripes of light projected on the sand.
> I've realized sand and sea surface with two isosurfaces, but I'm wondering
> about obtain solar rays concentration.
> Have you any suggestion?
> Thank you in advance,
> ;-)
> Paolo
> 
> 
> 

The effect you are looking for is called caustics.
Look in the docs for Photons.
They're shot into the scene and can accumulate in
bright spots (caustics) when diffracted by glass,
water or something.
Just active photons for your light source (docs!)
this should do the trick.

Sebastian

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