In article <3c277347@news.povray.org>, "Tom Melly" <tom### [at] tomandlucouk> 
wrote:

> > Finding the right points for the mesh vertices is not a trivial task...
> 
> Can't it just use the points it checks for the iso? What would be the
> defect? (I'm not argueing - I'm curious)...

The points wouldn't be evenly distributed, and there is still the 
problem of figuring out which points to connect with triangles. The 
points from the intersections with the camera rays could be connected 
together to make a height_field-like structure, but it would have all 
the limitations of the height_field.
A collection of random points won't be so easy to connect together into 
a surface...I don't think there is any foolproof algorithm to do that, 
and all of the algorithms are pretty complex. It would probably be 
better to stick with something more like marching tetrahedrons, or some 
method that scans the surface.

-- 
 -- 
Christopher James Huff <chr### [at] maccom>

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