"Slime" <fak### [at] email address> wrote in message
news:422cbb32$1@news.povray.org...
> > however, the shadows are not affected by the image map. the shadows are
> > those cast by the underlying object.
>
>
> If you can see through it, then it should not cast a shadow. Perhaps your
> max_trace_level is too low?
>
It also depends on how much of the surface is opaque and whether the light
lines up with the bits of the image on the front and back surfaces.
It's probably stating the obvious, but a ray will only shine through if both
the point where it enters and the point where it leaves the object are
transparent.
Chris.
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