In article <39c3f5ca@news.povray.org>, "Greg M. Johnson" 
<"gregj;-)56590\""@aol.c;-)om> 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?

Well, they most likely come from the fact that the pattern you are using 
has sudden changes, it is non-continuous. The isosurface solver has 
trouble solving this type of function. I don't think there is a good way 
to fix it in this case, I would just use a bunch of boxes. In other 
cases, you could try to smooth the pattern, or maybe output an image and 
use an image_mapped pigment function with interpolation.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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