I am a new raytracer, and as part of teaching myself to use Povray I have
been trying to copy other peoples work. My latest project was to try the
mini planet posted by JC (Exether)
http://news.povray.org/povray.binaries.images/32436

I have modelled a planet using the union of an isosurface for the land and a
sphere for the sea but I am having problems with the grass. I can't seem to
get any 'beach' around my land. My land/sea boundary is at the surface of
the sphere, radius 9 units, if I try to put green cones everywhere above
9.05 using an if statement it just parses forever, but works if I do it
above 9.0, so I tried reducing the radius of my sea sphere to 8.95 and
using 9 in the if statement and had the same problem, can anyone offer a
helping hand to a confused beginner?

Thanks,
Nick

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