Christian Froeschlin nous apporta ses lumieres en ce 2008/01/29 08:40:
> Jan Dvorak wrote:
> 
>> Nicolas Alvarez napsal(a):
>>>
>>> I heard (filter + transmit) should be <= 1 for things to look correctly.
>>
>> f+t <= 1
>> f   >  0
>> t   >  0
>>
>> Did I forget something?
> 
> Reflection would also play into the equations.
> 
> The keyword "conserve_energy" can be useful.
 From the original scene: (plus my comments)
#macro tex( col )
pigment { rgb col }// this generate a "suspicious expression after rgb" warning
normal { bumps .1 scale .002 }// micro normal. Killer with high aa settings.
finish { ambient 0 diffuse .4 brilliance 1.2
specular .97 roughness .02
metallic .1
reflection { .2,.9 metallic .1 fresnel on exponent 1 }
conserve_energy
}
#end

conserve_energy is there.

-- 
Alain
-------------------------------------------------
Grandchildren are God's reward for not killing your own.

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