Alain <kua### [at] videotronca> wrote:
> There may be a problem if your media container is much to large or there
> is no container at all.
>
> Try enclosing your cube inside a box about 2 to 5 times larger. It need
> to be as small as possible while containing all the visible media.
> Make is "hollow" with "pigment{rgbt 1}".
>
> The goal is to prevent any ray to extend to infinity while traveling in
> the media: Reatching the background. When this appen, there is no way to
> acurately evaluate the effect of the media.

Ahh, this did the trick. I thought, reasonably enclosing the media element was
only for minimizing the render-time. As I were in no hurry, I just didn't use a
media container at all -- nice to know, that there are other purposes of that
one.

You were a great help, thank you very much.

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