"Trevor G Quayle" <Tin### [at] hotmailcom> wrote:
> "SharkD" <nomail@nomail> wrote:
> > http://img213.imageshack.us/my.php?image=hslsphereshowgw2.jpg
> >
> > If you look at the above image you can see graininess where the square grid
> > overlaps the cut portion of the sphere? What causes this? Ususally stuff like
> > this only happens when there are coincident surfaces. I checked and there are
> > none. Moving the grid away from the sphere surface causes the problem to
> > lessen. Turning the light sources off causes it to go away. I've experimented
> > with changing to a parallel camera, parallel lights, turning off shadows and
> > reflection for objects, turning off ambient in global settings and in the
> > finish, turning off radiosity, etc....
>
> Coincident surface, move the grid plane up slightly.
>
> -tgq

It's not a coincident surface. As I said, I already tried moving the grid away.
The problem gets gradually better as I move it farther away. This is different
than a coincident surface problem; when coincident surfaces are the problem,
the issue is resolved immediately once one of the surfaces is moved slightly.

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