> > Ken wrote:
> > > max_trace_level ?

Remco de Korte wrote:
> Couldn't it be that this won't help because internal reflection
> goes on infinitely (until POV-Ray decides it's enough and decides
> the pixel should be black)?

It would take quite a perverse shape to produce infinite internal
reflexion; sooner or later you're likely to hit a surface at near enough
to the normal to escape.

I usually set maxtrace to some arbitrary number like 256, but make sure
all transmit/reflection values are <1.  If for example these are 3/4, we
reach the epsilon limit in 20 steps.

-- 
"How'd ya like to climb this high without no mountain?" --Porky Pine
Anton Sherwood  *\\* +1 415 267 0685 *\\* http://www.jps.net/antons/

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