> I am no expert and have no idea what the correct ior would be for a grape (or if
>   you should even be using this for grapes) but I think the effect looks more
> realistic. Also you would need to adjust the fade_distance and probably colours
> (I think your grape colour is better).
>
> Sean
>

The ior for the inside of a grape should be slightly larger than water: 
Sugary water.

Pure water's ior is 1.33. For a grape, a good value could be around 1.34 
to 1.35. Lower for green grape, higher for ripe red or blue grape.

If you don't want to use SSLT, you may use some scattering media with 
extinction 0 and fade_color set to the tint of the inside, and 
fade_distance. Normaly, green for green grape, but much more yellow for 
blue or red grape.



Alain

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