> On 11-7-2012 22:31, Alain wrote:
>> I have some problem with that shock wave: It don't difract light.
>> A shell with an ior of about 1.1 to 1.17 would be more convincing.
>>
>
> This gets me into problems :-(
>
> For the example I switched off the solid ejecta. I also tuned down the
> fog over the water.
>
> For the shock wave I used an ior of 1.01. Obviously, now its media
> interacts with the other media inside, especially the dust ejecta
> container. Higher ior makes it worse.
>
>
> Thomas
>
It looks like a solid, full, shell. Make the shock wave shell as a 
difference of 2 spheres.
To bad we can't have variable ior, as in this case, it should go from 1 
(in the air in front of the wave), raise in an S shape to maybe around 
1.1, then drop slightly under 1 before returning to 1.

You may also try playing giving the area inside the sinside an ior 
slightly less than 1, like 0.98 to 0.995...




Alain

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