Thanks for this list of experiments.
It is possible that the macro you describe is within my coding ability, but 
the mere idea of it makes my head hurt at this moment. ;-)

"Slime" <fak### [at] emailaddress> wrote in message 
news:41cfa3b3@news.povray.org...
> Looks like this can be significantly improved by changing AA settings.
>
> Try any or all:
>
> - Turn off AA jitter (-J)
> - Increase sampling depth (+R4 (or 5))
> - Use AA method 2 (+AM2) (beware high sampling depths with this)
>
> As for the straight lines, they'll still have their edges anti-aliased,
> which may create a sort of blurring effect along their edges. (It 
> shouldn't
> be fuzzy if you get the AA right, but it won't be completely sharp 
> either.)
> This can be fixed, if it bothers you, by carefully placing the edges of 
> the
> object that makes the outline so that it lines up with the edges of 
> pixels.
> The best way to do that would be to make a macro which takes an (x,y)
> coordinate and returns the nearest <x,y,z> on the image by using 
> image_width
> and image_height. Of course, the details depend on your camera position 
> and
> settings.
>
> - Slime
> [ http://www.slimeland.com/ ]
>
>

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