Rune <run### [at] inamecom> wrote:
: When alpha is on, POV-Ray still use the background colour when it calculates
: AA'ed pixels. It shouldn't. It's like it takes the background into account
: twice - both in the colours and in the transparency. It should only do it in
: the transparency.

: Say you have a red sphere on a black background. The AA'ed pixels should
: have the same red colour as the sphere but with some transparency. But
: instead they are a darker red with some transparency because they are mixed
: with the black background colour.

  Then you'll wonder why the edges don't look antialiased when you look
at the image with a program that doesn't support the alpha channel (or
when povray itself shows the image).

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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