"Alain" <aze### [at] qwertyorg> schreef in bericht 
news:4d90db27@news.povray.org...
>
> The first thing to do would be to alter the mesh used for the cobblestones 
> for one that is more rounded. It may have a "broken" underside. You then 
> can use a random stream to verticaly flip some of them.
> Then, also with a random stream, "forget" some.

Yes, that is one of the implementations I had in mind indeed, even extended 
to 6 different faces. For the time being, I tweaked the surface representing 
the dirt between the stones a bit further and the effect is better now. And 
I put some more irregularities on the surface of the cobbles.

Thomas

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