On 04/29/2017 08:05 PM, Jörg "Yadgar" Bleimann wrote:
> Hi(gh)!
>
> I started to model the building blocks of a Swiss-made marble lane
> system... when I came to an elongated block with a serpentine-shaped
> marble track on top, I chose to use a cubic sphere to create the
> hollow... but it resulted in heavy artifacts (object on the extreme
> right of the scene attached). I tried various tolerance values - but
> nothing removed those artifacts! Here is the code:
>
Thanks for posting code. I've opened a github issue for this:

https://github.com/POV-Ray/povray/issues/287

given it seems to render correctly in 3.6.1.

Bill P.

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