"Eric" <pov### [at] johannsenus> wrote in message
news:web.407e2be9578c3af63cec3e620@news.povray.org...
> Am I missing something here?

See Hughes's answer for the solution to your particular problem. Have you taken
a look at the gradient pattern? (gradient y in your case). It would remove the
need for an external image map. Following on from that, you can have even more
fun with the slope pattern (which can work with both the normal and the
altitude - e.g. high flat areas get a coating of snow, low flat areas get grass,
and steep areas get bare rock, irrespective of altitude).

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