"Mark Wagner" <mar### [at] gtenet> schrieb im Newsbeitrag
news:3ba0501b@news.povray.org...
>
> Jan Walzer wrote in message <3b9fc219@news.povray.org>...
> >no radiosity, no lights are used ... only isos and a skysphere ...
>
>
> Two copies of the isosurface, one scaled slightly larger than the other,
> with the outer one being mostly transparent, and a max_trace_level of 1.


The best guess so far ...

There are two ISOs ... one with threshold 0 and the other one with threshold
0.01 ...
the inner one is pigment 0 ambient 0 diffuse 0
the outer one has rgbt <0,0,0,1> and emitting media 1

because of the low threshold difference I had to change accuracy to 0.00001
and the formula has a maxgradient of 95 or so ... so it it very slow ...

I just realized, that instead of media I could have used fade_color 1,
couldn't I ???



--
Jan Walzer <jan### [at] lzernet>

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