POV-Ray : Newsgroups : povray.unofficial.patches : UberPOV v1.37.0.0-beta.6 released : Re: UberPOV v1.37.0.0-beta.6 released Server Time
29 Jul 2021 05:42:50 EDT (-0400)
  Re: UberPOV v1.37.0.0-beta.6 released  
From: Alain
Date: 12 Aug 2014 14:17:26
Message: <53ea5a36@news.povray.org>
>> Now with those fancy finish features recently shown off in
>> povray.binary.images.
>>
>> Also does stochastic global illumination now.
>
> I found under some conditions you get a visible pattern to the noise
> when doing a low quality "preview" render with no_cache. It's almost as
> if the random number generator is seeded off the pixel coordinate or
> something? Is this possible or am I seeing patterns where none exist?
>

A simple way to check that: Launch a 2 or 3 frames animation with no 
changes between the frames.
If there is a repeatable pattern, the images will show the same pattern. 
If the pattern is just random noise, it will change from frame to frame.


Alain


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