Sorry, I forgot to mention that this was with POV-Ray for WINDOWS.  One thing
that I'm interested in, too, is how much of a speedup the multiply-the-radius
optimization provides.  Although I guess that when it comes to ray-tracing,
any little speedup helps!

-Nathan

Ronald L. Parker wrote:
> 
> Here's the culprit, from the windows config.h file:
> 
> #define EPSILON 1.0e-5
> 
> I changed this to
> 
> #define EPSILON 1.0e-12
> 
> and, for good measure, added
> 
> #define SNGL double
> #define COLC double
> 
> and the problem went away.

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