"B. Gimeno" <nomail@nomail> wrote:
> "B. Gimeno" <nomail@nomail> wrote:

> I suppose you know what I mean, the normals should be to reverse as the surface
> is folded in on itself generating more artifacts like these. Or not?
>
> B. Gimeno

Well, one possible solution would be to pair triangles with the same control
points, each with the normal inverted with respect to its other, which would
lead us to the following conclusion:

The Klein Surface is "a one-side borderless surface with two sides".

B. Gimeno

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