"Hookflash" <hoo### [at] hotmailcom> wrote in message
news:3A5### [at] hotmailcom...

I was wondering about this the other day.

I think that, in particular, diffuse and reflection are highly dependant on
each other in REAL LIFE (tm). To be able to specify them separately is
unrealistic but useful - it's as though you had a program to simulate the
action of electricy that allowed you to specify voltage, current and
resistance independantly of each other.

My intuition is that diffuse and reflection should add to 1. Light falling
on an object that isn't reflected is diffused and visa versa. Ambient, on
the other hand, is a "fake" effect to simulate radiosity in a scene.

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