zuegs wrote:
> [...]
> 
> I suggest to better use the same threadment for reflection as on line 24-28
> in this case, a double reflection what keeps the bumpy argument. That means
> the "if" condition on line 14 is not nescessairy and the "else-part" (line
> 24-28) should be used in place.

I think you analyzed the situation correctly but could you explain why 
you think with this change it is more 'correct' than before?  The fact 
that your sample scene looks better with it is an indication that it 
leads to more plausible results in some circumstances but i actually 
don't see a reason yet that it is in any way accurate.

What the third case does is in fact a strongly simplified simulation of 
a double reflection - something that indeed will occur quite frequently 
on a strongly bumped surface.  A true double (or more times) reflection 
would however require a complete additional surface handling (including 
possible refraction, attenuation etc.).

Christoph

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