Cool, this seems like the sort of thing you'd see forwarded around and
linked to a lot.

You're missing a period at the end of the second paragraph on the Technical
Information page. I would make the "About" link more prominent because I
found that information interesting. I was also left with a few questions
after reading it:

 - You claim that isosurfaces "only need the plain height data and not
require large mesh structures to be generated." Of course, you must keep the
elevation data in memory *somehow* to be able to render the images. How do
you store it more efficiently than, say, a height field does?
 - How are you feeding your data into the isosurfaces? I know POV-Ray can't
read efficiently from arrays from within function{}s. Are they greyscale
images?
 - Where do you get your data from (maybe I missed this)?

Nice job.

 - Slime
 [ http://www.slimeland.com/ ]

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