Andrew the Orchid nous apporta ses lumieres ainsi en ce 2004-11-13 
04:14... :

>> Correct.  It is interesting how our perception of our world often 
>> differs
>> from reality.  When I started working on the photon code, I started 
>> looking
>> more closely at real items in the real world, and I noticed that many
>> shadows of clear objects (such as a glass of water) looked very 
>> different
>> than how I thought they "should" look.  The reality is that much of the
>> shadow area is almost completely black.  However, when we casually view
>> something like a glass of water, if we don't look carefully, our 
>> brains have
>> a tendency to fill in details that really aren't there.
>
>
> Ah yes - the mind does not always perceive what is before the eye... 
> (See any optical illusion for a simple proof of this concept.)
>
> Personally, I would suggest that maybe the lightsource is in the wrong 
> place (and/or should be an area light - do photons respond to those?)
>
> Andrew.

You need to add "area_light on" in the light's photons block in addition 
to the area_light in the light's deffinition. Otherwise, it will act as 
a point light for the photons.

Alain

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