Chad Kruger wrote:

> So far, I have run a few tests with fog and adding a filter number to
> the rgb of the fog colour, add some light, and there is still no
> difference between the fog that remains in shadow and the fog that
> lies in light.
>

hi chad,
visible light rays can only be made with atmospheric media using
scattering media. there is no possibility to make them visible in fog.
adjusting your media is much more complicated than fog. for the
scattering color use very dark grey (max 0.2 when i remember right).
also make shure that your traced rays don't need to walk an infinite way
through the media: put your media into an object instead of into the
whole world.
this will avoid povray to stop the calculation before all media is
traced (which means a very unreal black pixel instead of the media's
color).

p.s.: have anybody thought about using this scattering errors for
modelling snow?
        i know it's resolution-sensitive but at some resolutions it
looks like real snow!

alex

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