Hi John,
Can anyone point me to something that would be useful in OSG for solving
the problem of making a set of contour lines similar to those seen on
maps? I'd like to provide osg with a plane and get the shape created by
the intersection with the plane.
I'm sure others can provide more mathematically-inclined answers
(perhaps even something already in OSG), but I could see doing that by
making a shader that draws lines when the world-space Z coordinate is a
given value (or a given multiple of a given value, or whatever).
Not sure how familiar you are with shader programming, but it should be
pretty easy. Of course, if you need the result for other calculations
rather than just for display (or if you need it to be arbitrary planes,
or other things) this won't work.
Hope this helps,
J-S
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______________________________________________________
Jean-Sebastien Guay [EMAIL PROTECTED]
http://www.cm-labs.com/
http://whitestar02.webhop.org/
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