>You just have to be careful about how you move the object. In this first
>example the two spheres have exactly the same bumps:
>
> ...
>
>But in this second example the patterns of the bumps are different.
>
> ...
>
>What happens is that POV has a sort of random bump field that pervades
>the whole of 3d space, and which becomes visible only when you put a
>surface in that space. In the first example, the two spheres pick up
>their bumps from the same place in the 3d bump field, and then one of
>them moves sideways taking those bumps with it.

It's exactly what I observed. I had 25 spheres with the same pattern..
because I created all of them at 0,0,0. I just figured out what you
explained here and created the spheres at different places.. et voila!

Thanks for the help!
O.

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