"NetDave" <new### [at] netdavecom> wrote:
> I ran it again without photons, so it's just a basic glass cone on a wood
> textured plane. What am I missing here?
>
>
> "NetDave" <new### [at] netdavecom> wrote in message
> news:46edc6c0@news.povray.org...
> > I'm sure this is a frequent problem, but I just can't find the information
> > in the documentation. I'm rendering this scene with photons and as you can
> > see in the attached image the returning rays through the cone are coming
> > back as speckles. I've tried some of the photon settings with no success.
> > Thanks for any suggestions.
> >
> > -- Dave

Do they go away if you use high-quality antialiasing?

It might be coincident surfaces causing those artefacts; have you tried
translating the cone upwards (or the plane downwards) by a very small
amount?

Otherwise, as JC suggested, try increasing your max_trace_level.


- sooperFoX

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