POV-Ray : Newsgroups : povray.documentation.inbuilt : Anti-Aliasing Options -- a small correction? : Re: Anti-Aliasing Options -- a small correction? Server Time
29 Jan 2023 19:47:08 EST (-0500)
  Re: Anti-Aliasing Options -- a small correction?  
From: Alain
Date: 8 Feb 2018 16:48:23
Message: <5a7cc5a7$1@news.povray.org>
Le 18-02-07 à 05:57, Kenneth a écrit :
> Anti-Aliasing Options (also in the wiki)
> Underneath the 'recursive super-sampling' diagram, it says...
> "Note: The maximum number of samples in the recursive case is hardly ever
> reached for a given pixel. If the recursive method is used with no anti-aliasing
> each pixel will be the average of the rays traced at its corners. In most cases
> a recursion level of three is sufficient."
> "...If the recursive method is used with no anti-aliasing ..."  ??  Uh, with NO
> anti-aliasing? Maybe I'm not grasping what is meant there (and never have), but
> that sounds illogical (?) It has been in the docs forever, so even now I was
> hesitating to mention it; but it has always seemed strange to me.
> In the wiki:
> http://wiki.povray.org/content/Reference:Tracing_Options#Anti-Aliasing_Options

That,s for +am2.
I think that it mean that if the anti-aliasing threshold is not 
reatched, then you get the average of those 4 sub-pixels with no further 

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