Pontiac Bonneville 2dr hardtop 1966 (polysurfaces shading)

Hello to all
in the forum

I been having difficulty in having smooth surfaces when using the surface 2 to 3 or 4 edge curves
sometimes there is a break in them how to fix it and make it a perfect shade without breaks

Do please help me in this

Pontiac.3dm (8.5 MB)

Hello - please see

In particular the sections on Nurbs surface topology and curve and surface continuity.


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thank you