hi,

"GioSeregni" <gms### [at] hotmailcom> wrote:
> ...
> In POV-ray, two main errors often occur, which POV-ray reports. Typically:
> 1) normals at 0,0,0 in smooth triangles. This means the triangles are actually
> three vertices in a line (and this entity should be removed).
> 2) nonexistent triangle (again, this means two vertices coincide).
> I can use other exchange programs to find these elements and correct them. But
> could I do this with POV-ray?
> I've studied the #debug feature a bit, but I don't understand. Is there a way to
> tell PovRay to generate a file with only the incorrect entities, or to rewrite
> my file to clean them up?

I think the 'trace' function may be useful to you.
<wiki.povray.org/content/Reference:Vector_Expressions#Functions>


regards, jr.

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