> > Alain <ele### [at] netscapenet> wrote:

> >> Shifting this "may" help you getting rid of some artefacts near corners like
> >> dark spots along inside corners.
> >
> > Shifting it up ot down?  Is it better to use a higher value for this or a
> > lower value?
> Equivalent. You only want the pretrace sampling to shift place so that they miss
> the problem pixels. It's also advisable to move the camera a very small amount,
> like +/-0.000001 unit.

Do you mean, shifting the camera BETWEEN the pretrace steps? If so, how
is that done?

Ken W

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