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hi,
"GioSeregni" <gms### [at] hotmail com> wrote:
> For an excellent result the code must have at least 3 steps
> 1) (already done), calculation of the average of the normals affecting the
> point.
> 2) Correcting the weight of the normals per point if they also come from
> triangles with a large surface area
> 3) Corrective of the normals if the adjacent triangles have an inclination
> between them that tends to approach 90 degrees
fwiw, my 'gts2pov' takes triangle area into account when calculating the
normals. also just found mention of a 'stl2pov' software :
<https://news.povray.org/web.6156c51533af95845bd1b3ba6cde94f1%40news.povray.org>
<https://wiki.povray.org/content/User:Jr>
regards, jr.
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