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And this time, with a picture (doh!)
You shouldn't be able to see those checks, and increasing the media density
doesn't make them darker.
--
Tek
http://evilsuperbrain.com
"Tek" <tek### [at] evilsuperbrain com> wrote in message
news:43f78692@news.povray.org...
>I just did a quick google through the newsgroups but couldn't find an
>answer
> to this. Here's a really simple scene, with fog turned off the cylinder
> appears solid black, because it's a black & transparent checker containing
> a
> dense black media. But with fog turned on the media parts become lighter
> *regardless of how dense the media is*.
>
> fog {
> fog_type 1
> rgb x
> distance 3
> }
>
> background { rgb z }
>
> cylinder {
> -y, y, .3
> translate z*2
> hollow on
> pigment {
> checker
> rgb 0,
> rgbt 1
> scale <.3,.3,100>
> }
> interior {
> media { //media so dense that without fog it looks identical to the
> opaque
> bits.
> absorption 1
> density { rgb 100 }
> }
> }
> }
>
> Try increasing the media density, you'll see it doesn't get any darker.
>
> Is this a known bug with media & fog? Is there any solution? It's screwing
> up the smoke in my volcano image :(
>
> --
> Tek
> http://evilsuperbrain.com
>
>
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Preview of image 'fog-media-bug-test.jpg'
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