On Thu, 21 Feb 2002 11:36:14 -0500, "Scott Gammans"
<nos### [at] yahoo com> wrote:
> This looks exactly like what happens with a sphere_sweep object if the
> tolerance value isn't set correctly.
Do you remember why tolerance parameter was added to sphere_sweep ?
From MegaPOV doc: "the object casts shadows onto itself at some points because
of calculation errors". This is connected with floating point accuracy
(precision problem). There is no way to remove this problem from POV-Ray. IMO
this is also connected with your (and mine) torus problem. I've reported it
before. Compare your problem with
http://news.povray.org/rh44rtoeu5ifj145bv3iu3uirf6jb7ckrj%404ax.com
ABX
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