"Slime" <slm### [at] slimelandcom> wrote in message
news:3d4d40a4$1@news.povray.org...
> I'm not sure about the shadow, but the visibility of transparent objects
> with fog turbulence is a known flaw. Fog turbulence isn't calculated as
> accurately as media is... it's complicated, but the way it's calculated,
> rays starting in different positions will think the fog has different
> turbulence patterns. It's like an abrupt change in media density. There's
no
> easy way around it.

Aaah. I don't recall seeing this mentioned before, must have filed it in
file F
(for forget)

Guess the real workaround is to use media instead of fog.

> For the shadow, see if raising max_trace_level helps; it's possible the
fog
> somehow makes it shoot another ray somewhere...
>

max_trace was 3/5

Fortunatly this isn't causing too much of a problem in my current scene.
I'll try and keep it in mind in the future.

Gail
--
#macro G(H,S)disc{0z.4pigment{onion color_map{[0rgb<sin(H/pi)cos(S/pi)*(H<6)
cos(S/pi)*(H>6)>*18][.4rgb 0]}}translate<H-5S-3,9>}#end G(3,5)G(2,5.5)G(1,5)
G(.6,4)G(.5,3)G(.6,2)G(1,1)G(2,.5)G(3,.7)G(3.2,1.6)G(3.1,2.5)G(2.2,2.5)G(9,5
)G(8,5.5)G(7,5)G(7,4)G(7.7,3.3)G(8.3,2.7)G(9,2)G(9,1)G(8,.5)G(7,1)///GS

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