> "Robert McGregor"<rob### [at] mcgregorfineartcom>  wrote:
>> Thomas de Groot<tenDOTlnDOTretniATtoorgedDOTt>  wrote:
>>> This would indeed be excellent for a swimming pool scene or any shallow
>>> water one of course. I like it.
>>>
>>> Thomas
>>
>> Thanks Thomas :)
>>
>> My animation is now available on Vimeo, here:
>> http://vimeo.com/34064748
>>
>> Happy Holidays!
>> -------------------------------------------------
>> www.McGregorFineArt.com
>
> Excellent, would it be possible to get an idea of your settings and rendertime
> for a frame?
> I have many troubles to find acceptable settings for caustics.
>

You don't use the caustics keyword, but photons.

You start with a realistic ior, like 1.333 for water or 1.5 for some 
average glass. You may add some dispersion if you are ready for the 
added time requirement.

Then, it's just a case of shooting enough photons at your objects.
A photons block in the global_settings.
A photon block for the relevent objects, here, you need something like:
photons{target refraction on collect off}
You don't need any photons block for the lights as they all have 
photons{refraction on reflection on} by default except for shadowless 
ones. An area_light may need photons{area_light}.
NO photons block on the objects that receive the photons.


Alain

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