Okay, I have played with this some more and found that setting the tolerance
value low gets rid of this.  I suppose that my unfamiliarity with the sphere
sweep made this goof possible.  Never mind.  I should have read the
documentation a little more carefully.

Cheers!

Chip Shults
My robotics, space and CGI web page - http://home.cfl.rr.com/aichip


"Sir Charles W. Shults III" <aic### [at] cflrrcom> wrote in message
news:3cedc87e$1@news.povray.org...
>     I have found a problem with the way sphere sweeps cast shadows, and I have
> not seen anything about this but I may have missed it.  I started with a
simple
> sphere sweep with b_spline and tolerance 1 and I may have made some sort of
> error here.  However, I played with this a little and decided to put a couple
of
> other objects in the scene for reference.
>     Obviously, if there are sections of a sphere sweep that are "control"
> segments, they will be invisible and you would not render them or their
shadows-
> no_shadow is the key here, I think.  But the first segment is control and
should
> be invisible with no_shadow in effect, and that I understand.  It appears that
> the second segment is still flagged for no_shadow in the routine, and so while
> it renders, it will leave a gap.  Probably something very simple to fix in the
> source.
>     Any POVers have this occur?  I can post an image in another group if you
> have to see this, as well as source code.
>
> Cheers!
>
> Chip Shults
> My robotics, space and CGI web page - http://home.cfl.rr.com/aichip
>
>
>
>

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