Thorsten Froehlich <tho### [at] trfde> wrote:
> dragonmage wrote:
> > Anyone have insight into the actual part of the calculation that is failing?
>
> There is no failure. The implementation is designed with certain limits for
> the maximum and minimum intersection distances. This is necessary as
> precision is finite and very large as well as very small numbers will
> accumulate increasingly visible inaccuracies as they flow through the
> intersection computations. Keep your scene within 10e7 to 10e-5 and you will
> be fine for most object types.
>
>  Thorsten, POV-Team

Ah, thanks for the keywords I needed: "intersection distance".
Looking up this distance online it seems to be the distance between pixel
and intersection in scene. For my scene,there are only small distances
between the Pixels and the surfaces.
There are no large distances between light/object/eye in the given scene,
even tho the whole is displaced by 1M.

If you look at the values in the scene, there should be no intersection
distance more than a little over 20.

chris

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