Yea, I started playing with extinction as well, after having a conversation with
Peter (Popov) over ICQ. Setting it to 0 works, but makes the fade off of the white
media a bit crisp. Guess I'll play some more with the settings. It'd help to
understand the why's of this though. ie, why the media continues so strongly past
the fade_distance of the light source and why it's color inverts.

David

Bob Hughes wrote:

> I tried a few things out to see what you were getting there and I didn't find a
> answer.  Think the media really does just darken based on the scattering amount
> (color vector) where 0 is none and transparent, >0 is more and darkened.
> 'extinction' can help but the main thing seems to be that whether you use lights
> or not, or a light with or without media effects, the result looks the same.
> Maybe something really is wrong.  Who's to say though?
> 'media' itself isn't really confined to being a 'light_source' affected thing,
> it's more like a object than a substance (whatever word describes media).
> Although you could almost make it invisible with the right tweaking of
> extinction and emission and absorption it wouldn't be very feasible.  The better
> thing to try would be to density map your media using a cylindrical pattern
> overall with the original pattern as the dense central part and no density at
> the outer part.

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