LEDpipe nous apporta ses lumieres en ce 26/01/2006 16:33:
> Does POV-Ray properly render internal reflactions?  I can't seem to get it 
> to.  I'm trying to set up a light pipe that should be near TIR (total 
> internal reflaction).  What I've tried so far is to wrap the pipe with a 
> mirror, but that isn't quite the correct to do this.
> 
> Ideally, the surface smoothness would affect the internal reflections so I 
> could correctly model what happens on a scuffed or scratched surface.
> 
> 
It does do total internal reflection realisticaly, but... for the light from a
light_source to do 
it, it must emit photons.
You need to add a protons block in the #global_settings{}
You also need to add a photons block to your object. That one will look like:
photons{target refraction on}
You can also add "reflection on" but probably don't need it.
In your case, you probably also need to increase the max_trace_level, possibly to it's
maximum value 
of 255.

Read section 3.6.3  Photons in the documentations.

-- 
Alain
-------------------------------------------------
Just because someone doesn't love you the way you
want them to, doesn't mean they don't love you with
all they have.

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