Rune wrote:
> 
> [...]

That's completely right, but you have to take care not to reject a 
solution just *because* it is realistic.

BTW the "it does not have to be realistic, it just has to look nice" vs. 
"if it is realistic it will look correct as well" is a very old conflict 
in CG.  But in the end it often boils down to a 
physically/mathematically correct solution - if implemented efficiently 
- also being the most useful one and the best intuitive solutions also 
being physically quite accurate.

Christoph

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