POV-Ray : Newsgroups : povray.binaries.images : Forces of Nature image abandoned due to time. : Re: Forces of Nature image abandoned due to time. Server Time
8 Aug 2024 14:24:05 EDT (-0400)
  Re: Forces of Nature image abandoned due to time.  
From: Slime
Date: 27 Jun 2005 14:57:17
Message: <42c04c0d$1@news.povray.org>
> I struggled with AA on the edges of the signs, even with high settings
(+a0
> +am2 +R2 +J). I rendered this image twice the size and then reduced it,
> hoping to get rid of it....not very affective.


When any channel (r g or b) of a color is brighter than 1, it dominates
every pixel it's a part of. To fix the anti aliasing on the edge of bright
objects (such as the white background of those signs), you have to darken
the objects as much as you can without bringing the colors below 1 (which
would then change the appearance of the object). This isn't always possible,
but in this case it should be.

So, bring the sign background color down in brightness little by little
until you start to notice it getting darker, and then put it back at the
lowest value that didn't make it look darker, and the AA will probably work
out better.

(If you can render in POV-Ray 3.5, which didn't have this quirk, that will
solve the problem too.)

 - Slime
 [ http://www.slimeland.com/ ]


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