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"Ton" <nomail@nomail> wrote:
>
> I have tried with maximum anit-aliasing (+a0.1 +r9), but I'm still having the
> gaps. Is there any way I can fix this?
>
There's also the trick of running a very LARGE-sized render (with some good
anti-alias settings), and then *down-sampling* that image in another app as a
post-processing step, to make it smaller. This approach has been discussed from
time to time in the newsgroups, and I use it myself if I have a 'problem' image.
I tried your code example with a render size of 3840 X 2880 pixels, using AA
with an antialias_threshold of 0.05-- then downsized it in Photoshop to 1100 X
825 pixels (a purposely 'odd' size, so as not to be a strict 2:1 or 3:1
reduction.) This seems to eliminate any Moire patterns, as far as I can tell.
Some of the thin lines do disappear, though; I don't think there's a way around
that, because the lines are SO thin to begin with.
In Photoshop, I'm using the (default?) bi-cubic interpolation for the
down-sizing; but try bi-linear instead (if your image app has that), to see if
it produces better results.
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