Am 28.08.2014 22:36, schrieb Alain:
> Le 14-08-28 12:24, clipka a écrit :
>> Am 28.08.2014 11:13, schrieb scott:
>>> Here is the difference between two renders of the scene a few minutes
>>> apart. It seems some blocks always get given the exact same seed for the
>>> RNG.
>>
>> Did you use the Windows version? If so, did you start the renders from
>> the same instance of the GUI?
>>
>> I suspect that I'm only computing the base seed when POV-Ray is started,
>> erroneously using it over and over again during the entire session.
>>
>>
>
> That can be aleviated by not reinitialising the random stream but
> continuing using it from where it was at the end of the previous render.
> That way, the last used value effectively becomes the seed of the next
> render.

Theoretically yes, but in practice no - each render thread needs its own 
stochastic RNG instance, and the render threads only live as long as it 
takes to render an individual image.

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