Thank you for the suggestion.  I will try using media, although I must
confess I'm rather confused about the difference between the media
absorption parameters as opposed to the fade_power, fade_distance,
fade_color specifications.  Isn't the fade_... stuff supposed to do the same
thing as the media absorption stuff?   If not, what is the difference and
when should I use one instead of the other?

"Mark Weyer" <wey### [at] informatikuni-freiburgde> wrote in message
news:3EA### [at] informatikuni-freiburgde...
> One comment, but not to the caustics:
>
> >          pigment
> >          {
> >             color rgbf <0.3, 0.0, 0.0, 1.0>
> >          }
>
> You put the filtering effect into the texture. A thin drop of wine will
> then have the same filtering effect as a deep pool of wine. My experience
> with red wine (which is little enough, as I always prefered white wine)
> is different. Therefore I would put the filtering effect into the
material's
> interior, like this:
>
>    pigment {transmit 1}
>    interior {media{
>      absorption <0,1,1>*some_factor
>    }}
>
> I am no expert on making good materials, so treat my advise with caution.
>
>
> --
> merge{#local i=-11;#while(i<11)#local
> i=i+.1;sphere{<i*(i*i*(.05-i*i*(4e-7*i*i+3e-4))-3)10*sin(i)30>.5}#end
> pigment{rgbt 1}interior{media{emission x}}hollow}//  Mark Weyer
>

Post a reply to this message