Am 02.12.2011 12:28, schrieb j-dowsett:

> Why does it not cause refraction of the light that is emitted directly from the
> spotlight?  Is there anything I can do to correct this?

Classic backward raytracing (which is what POV-Ray basically does) can't 
do refraction between light and illuminated surfaces; POV-Ray does have 
a forward raytracing extension to cope with such situations, but you 
need to explicitly enable this feature; the buzzword to look for in the 
docs is "photons".

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