> Surely it's more of a multiplying force? so things viewed through negative
> absorption will have their colour increased by it, multiplicitavely. i.e.
black
> things will stay black which they won't with emission.


Is that how it works? I know that emission is additive, but i never figured
out how absorption works. I imagine it involves some sort of complicated
integral, since it seems to be sort of like an infinite number of
nearly-transparent thin layers.

I always wonder about the math behind these things.

 - Slime
[ http://www.slimeland.com/ ]

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