On 5/24/20 12:18 PM, William F Pokorny wrote:
...
> 
> I also tried for a matching fudge factor to match the breadth of the old 
> Turbulence() distribution. Cannot match previous precisely, but not bad 
> in my view.
> 
...
In povr, irid updated to yank fudge factor and scenes updated with 
accurate base thicknesses. Thanks Thomas.

When I looked at the fixed internal turbulence() with fog picked up 
additional bugs I expect kept folks from doing a lot especially with 
turbulence (copy constructor was creating new, but not copying old 
turbulence values, for example).

Anyway. In povr I've got the turbulence() fix in - with fixes to irid 
and a significant re-work of fog updating and adding features/keywords. 
Image attached showing some of the fixed and extended features.

The agate pattern looks different, but OK, with the turbulence() fix. 
Not looked in detail at marble or the two spiral patterns as yet. Still 
some f_turbulence() work to finish off.

Bill P.

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