Yes, this will happen. Image maps will move forever through the z axis, the
once option only applies to the x-y plane. In order to place an image map on
the other side, you need to make two objects with the same height and width
but with half the depth, then on the second one place the second image but
be sure to rotate it correctly or it will appear backwards.

Josh English
eng### [at] spiritonecom

Mike Varley wrote:

> Hi
>
> I'm trying to map an image on to the 'end' of a prism but no matter what
> I do it always maps onto the 'side' of it. Basically I'm trying to
> create a 7 sided coin with an image mapped on the 'heads' and 'tails'
> side. This is what I've tried:
>
> prism {
>   linear_sweep
>   linear_spline
>   -0.9, 0.9,  7,
> < 0.623, 0>, < 0, 0.782>, < 0.223, 1.757>, < 1.123,  2.19>, < 2.023,
> 1.757>, <2.246, 0.782>, <1.623, 0>
>
> pigment{
>       image_map {
>                  gif "50p_tails.gif"
>                  once
>                  }
>                scale <2.46, 2, 0>
>               }
> }
>
> Any ideas?
>
> Mike Varley
> mik### [at] nacstockacuk

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