POV-Ray : Newsgroups : povray.pov4.discussion.general : Basic blur : Re: Basic blur Server Time
27 Feb 2024 19:37:54 EST (-0500)
  Re: Basic blur  
From: clipka
Date: 22 Jan 2019 09:00:28
Message: <5c4721fc$1@news.povray.org>
Am 22.01.2019 um 12:27 schrieb Kenneth:

> Depending on the bump_size (the 0.001, vs. a larger value), the resulting image
> *might* look a bit noisy-- but my own recourse would be to render the scene
> with, say, 5 frames of an animation (no camera movement, but moving the bumps
> pattern in  x via the clock, by some large random amount; then bring those
> images back into POV-Ray and 'average' them together (using the'average'
> pattern) and then re-photograph the result 1-to-1 for the *final* render. This
> should help blend the noise.

As I said, the new anti-aliasing mode 3 is your friend there: Just scale 
the bumps small enough, and it will take care of the rest, no extra work 
needed. It does this by randomly jittering the sample rays within the 
pixel, and adapting the number of samples to the variance it finds.

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