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orientation when copying to points

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When I copy ( a circle) to points on another circle, and the number of divisions is high (e.g. 50), I get the impression the orientation works fine.

But in reality, the shape is twisted. So when I reduce the number of divisions to say 5, I end up with an obvious twist.

I used the cross product of the position with the up vector for orientation.

I need the shape not to twist, any idea?

orientation.JPG

circle.JPG

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many thanks, it works like a charm using the point vop and quaternion, although I didn't understand what is really happening.

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