'jitter' as you all might know is random on a frame by frame basis, not
to be used when making animation frames you know.
If no AA there is no jitter as I understood it, but makes me wonder now.
It has the ability to be on, off, off with a number which will be used
on the next render, etc. so maybe the answer lies there.


Julius Klatte wrote:
> 
> In answer to your (pretty quick!) reactions:
> 
> >Did you use any #macros or looping runs (#if   #while,
> etc.) ?
> No. But that shouldn't influence the render result either...
> 
> >Maybe it's gremlins.
> Hmmm... there's an interesting suggestion...
> >What do you want for free ?
> I'm not complaining!
> >Have you checked for viruses lately?
> Yes. I spoke to some of them yesterday. But they didn't tell
> me: "Hey, we're not going to mess up your system, just the
> tiny details of your POV images." Not that you can trust 'em
> of course.
> >Did someone turn on a blender or something while the image
> was rendering ?
> Well, the neighbours were having a fight...
> >Seriously I haven't a clue. Sorry.
> You're disappointing me... :)
> 
> >Is there any possibility that anti-aliasing uses a rand
> function? Did you
> >render this with AA on or off?
> That was my first guess as well. I'm not sure if
> anti-aliasing is random. I always thought it was a standard
> per-pixel routine.
> The image(s) I attached were with anti-aliasing, but I tried
> another time with AA off and that sure made things
> blockier..., but still there were slight variations in the
> images.
> 
> I'm not really having any problem with the phenomenon, since
> the effect is invisible for unzoomed rendered images, but it
> just struck me as strange...
> 
> Thanks anyway
> 
> Julius

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