POV-Ray : Newsgroups : povray.general : anti-aliasing : Re: More methods? was Re: anti-aliasing Server Time
19 Nov 2024 15:48:54 EST (-0500)
  Re: More methods? was Re: anti-aliasing  
From: Warp
Date: 13 Feb 2002 12:51:24
Message: <3c6aa79b@news.povray.org>
Tony[B] <ben### [at] catholicorg> wrote:
: Has the Team ever considered adding more AA methods? It'd be nice if you
: found one that handled very thin lines a little better.

  You are welcome to suggest an algorithm for that.

  The problem in raytracing is that rays are infinitely thin and they cover
only an infinitely thin volume of space (they are 1-dimensional). However,
the distance between pixels is huge compared to that. If an object is much
smaller than a pixel then there's a big chance that no ray will hit it.
There's no way the renderer can know that the object is there and that it
should shoot rays towards it. (After all, the reason to shoot rays through
pixels in the first place is to see if there's some object in that direction.)

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -


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