Lance Birch nous apporta ses lumieres en ce 2005-04-12 11:15:
> I think the thing that's lacking from these Blue Marble attempts is that the
> glass has no depth-based colour change.  Most coloured glass gets darker as the
> depth increases.  Finding a way to do that which still renders fast could be
> tricky though... hmm.
> 
> Lance.
> 
> 
fade_color [some colour]
fade_distance [some value]
fade_power 1 //linear relation, real world value. Suqare (2) is for light_source
fading.

Alain

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