In article <39c4295a@news.povray.org>, "Greg M. Johnson" 
<"gregj;-)56590\""@aol.c;-)om> wrote:

> I posted an image in p.b.i. under  the title of "Lines on isosurfaces."
> I asked for help about a trivial problem and discovered a more serious
> one.  I am using essentially a step function in an isosurface.  I find
> that mega refuses to give me any diffuse reflection for this object.

I think the most likely explanation is that it can't compute the correct 
normal for those surfaces.

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

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