Micha Riser <mri### [at] gmxnet> wrote:
> but what is the meaning if both are?

  This is what I have wondered as well.
  They are both very useful separately since they give different
transparency used for different purposes. However, using them both
at the same time gives results which usually don't produce anything
nice. Well, perhaps with low values for one of them or both could
give some useful effect.
  Probably it was easier to allow them to be used at the same time than
explicitly disallowing it. Or something. I don't know. :)

-- 
plane{-x+y,-1pigment{bozo color_map{[0rgb x][1rgb x+y]}turbulence 1}}
sphere{0,2pigment{rgbt 1}interior{media{emission 1density{spherical
density_map{[0rgb 0][.5rgb<1,.5>][1rgb 1]}turbulence.9}}}scale
<1,1,3>hollow}text{ttf"timrom""Warp".1,0translate<-1,-.1,2>}//  - Warp -

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