I posted  the a sample of the code that demonstrates the problem in 
p.b.scenefiles. I'm using the current POV release. I noticed that if I 
translate the cone a towards the foreground, the speckles seem to diminish, 
but that doesn't solve my question.

"sooperFoX" <bon### [at] gmailcom> wrote in message 
news:web.47206f316a7782f5943b35b60@news.povray.org...
> What happens if you translate the cone upwards by about half the width of
> that ring there? Do you still get the speckles then?
>
> If you'd like to share the source of your speckles cone scene I'd be happy
> to play with it to try and see what is doing it (or better, to stop it!)
>
> I would also like to see what happens when increasing the resolution of 
> your
> render to include only the cone at about/above 1200x1600 or so... what do
> the speckles look like then? Maybe it can give some clue as to what is
> happening. I have a reasonably fast dual-core PC, so again, I'd be happy 
> to
> try this for you on either POV 3.6/3.7 or MegaPOV 1.21 -- which, by the 
> way,
> are you using?
>
>
> Cheers
> -- sooperFoX
>
>
> "NetDave" <new### [at] netdavecom> wrote:
>> Thanks for the suggestion sooperFoX, but I'm not using area_light at all.
>> Here's my light_source:
>>
>> light_source
>> {
>>   <500,350,-100>
>>   color Light_Color
>>   spotlight
>>   radius 1
>>   falloff 2.5
>>   tightness 10
>>   point_at <0, 0, 15>
>>   photons
>>   {
>>     reflection on
>>     refraction on
>>   }
>> }
>>
>> The wierd thing is this ONLY happens when I use a cone object. Nothing 
>> else
>> causes it. FWIW, I've attached the final result of my tinkering. Some of 
>> the
>> old-timers may recognize this from some previous experiments with 
>> photons. I
>> just resurrected it in order to generate a 1920x1200 version for my new
>> monitor desktop.
>

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