On Thu, 21 Sep 2000 16:04:30 +0200, Derek Feichtinger wrote:
>I wrote programs which are able to convert MATLAB patch objects into
>povray mesh objects, using either 'triangle' or 'smooth_triangle'
>commands to build the mesh. I'm using this to picture proton clouds of a
>simulation, so the objects are actually isosurfaces of a discreet volume
>function.

So the function keeps its personal life to itself?

>In the smooth_triangle mesh object there are often holes. If I render
>the same object with 'triangles' using the exactly same vertex data the
>object looks ok and all the holes are closed. 

Is it possible that some of your normals are inverted?  That is, might
you have triangles whose normals are more than 180 degrees from each 
other?

By the way, you might find more answers in .general; this isn't really
a Unix question.

-- 
Ron Parker   http://www2.fwi.com/~parkerr/traces.html
My opinions.  Mine.  Not anyone else's.
Proudly not helping RIAA and SDMI steal my rights -- 
  http://www.eff.org/Misc/EFF/Newsletters/EFFector/HTML/effect13.08.html

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