Nieminen Mika wrote:
> 
> Nathan Kopp <Nat### [at] koppcom> wrote:
> : The real benifit here is when this is extended to isosurfaces.
> 
>   I would like to see how do you triangulate a z=sin(x)+sin(y) surface... :)
> 

Ummm, bad example - since that equation is of the form z = f(x, y), you
can parameterize & generate a nice surface quickly.  Building a
heightfield from it would also take little time...

Something like this Lundin surface would be better (k, d constant - 0.5
and 1 are nice values):
   x - d * sin(k / z))^2 + (y - d * cos(k / z))^2 + z^2 - 1 = 0

The closer to the origin you get, the more the oscillation.

Xander

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