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Well, I tried a much higher accuracy and got many lines to go away with a
surprisingly small increase in render time. The next question is, why are the
sides so dark?
"Greg M. Johnson" wrote:
> I have made an isosurface and there is a lot of banding on it, as you
> can see in the image below. Any tips on eliminating it, asides from
> simply reducing the accuracy a few orders of magnitude?
>
> #declare celly=function{pigment{cells}}
> #declare fnoise=16;//40;
>
> isosurface{
> function{y/160-
> celly((x+1000)/fnoise,y/fnoise,(z+1000)/fnoise)
> }
> accuracy 0.01
> threshold 0.0 // .03
> contained_by {sphere{0,600}
> pigment{SeaGreen} normal{bumps}
> finish{ambient 0.2}
> }
>
> ------------------------------------------------------------------------
> [Image]
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