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I just wanted to add:

1. Both of those images show the same chunk of terrain. There's some
coordinate system handedness issues going on, so the Povray render is a
mirror image of the OpenGL preview.

2. The program uses a spacial subdivision algorithm to generate the
terrain. Our very own Paul Burke has a decent description of the algorithm:
http://local.wasp.uwa.edu.au/~pbourke/modelling_rendering/planets/
(It's just below the blurb on generating planets.)

No doubt his implementation is significantly nicer than mine. :-)


- --
William Tracy
afi### [at] gmailcom -- wtr### [at] calpolyedu

You know you've been raytracing too long when when people ask you,
"What's up?", you reply "Y", and they say, "I was just wondering", and
you say, "well now you know". (Abbot and Costello at SIGGRAPH?)
    -- AmaltheaJ5
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