I'll try a few comparisons on my web page and see...

Josh

Rune wrote:

> I just saw ABX's question about weighting normals again:
>
> > I have point O and points P1, P2, ... PN connected as
> > traingles P1OP2, P2OP3, ..., PN-1OPN, PNOP1
> > I want calculate best normal at point O for all this
> > triangles. Should it be simple normalized summary of
> > all normals or waighted one depend of areas of each
> > triangle ? Maybe other way ?
>
> I got this idea:
>
> Weight the normal depending not on the areas of the triangles but on the
> angle they are taking up in the point O. That way the result will always
> depend on the shape of the corner, and if the shape is the same, the normal
> will also be the same, even if the triangles are structured differently.
>
> For an example, imagine the corner of a cube. It can be made up of 3 equal
> big triangles which each take up 90 degrees in the corner. The normal will
> be an average of the normals of the 3 triangles. But even if one of the
> triangles is much bigger than the others, the normal will still be the same,
> because the corner is the same.
>
> Do you think this would work well?
>
> Rune
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Josh English -- Lexiphanic Lethomaniac
eng### [at] spiritonecom
The POV-Ray Cyclopedia http://www.spiritone.com/~english/cyclopedia/

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