"Gilles Tran" <tra### [at] inapgfr> wrote:
> For what it's worth this drove me crazy when I worked on the "Reach for the
> stars" image. It's even mentioned in the "Making of". See the artifact under
> the kid's left eye: http://www.oyonale.com/iss/english/makingof_3.htm

That is helpful, actually. It proves (at least to my satisfaction) that it's
not something really obvious I'm doing wrong!

> I never found a solution, that's why the kid isn't facing the viewer in the
> final image... It's definitely related to a mixture of transparent and
> non-transparent zones in certain meshes, under certain lighting conditions.

Is there anything special about how POV-Ray calculates shadows for triangles
in mesh2s? In particular, are the triangles' inside/outside directions
important? Aside from the transparency mapping, these regions are also
unique because they are non-closed areas floating over the rest of the body
mesh. Just a thought.

Could it also be relevant that my Aiko is actually in a union? I must
experiment with the CSG aspect tonight.

I shall ruminate further
Bill

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