Rafal 'Raf256' Maj wrote:
> sco### [at] spamcom news:417507e1@news.povray.org
>
>> I have one question, can anyone explain why when I set the colour of
>> the plane to black the photons don't show up?
>
> Because the light is not deffused, even the one from photons.

I know, I realised this just after I'd posted!

> As for now, perhaps You could use something like
>
> plane { ...
>   pigment { rgb 1 }
>   finish { diffuse .5 ambient -.5 }
> }
>

Thanks for that idea, it worked pretty well.  Except that some of the
"colour" of the blob was actually due to the colour of the plane.  Anyway,
after a bit of tweaking I came up with this, which is far closer to what I
wanted.

pigment{ color rgb <1,1,1> }
   finish {
         diffuse 0.5
         ambient -1.1
      }

Cheers!

Scott

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