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Scott,
This is great and really shows off photos. 
Kudos to you!
Mike
scott wrote:
> Rafal 'Raf256' Maj wrote:
>> sco### [at] spam com 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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