> Have you tried using sphere_sweep with b_spline or cubic_spline for your
> wires? You set some control points and the sphere sweeps smoothly from
> one to the other. You need 2 extra, purely controll, points, one at each
> end of the sweep, and you can have as many other points as you want.
>
> Alain

Not sure how to begin with it.

Sparks are a bit "jaggy", and of course very bright.

I also have to solve the problem of wires, which do smooth (and complicated)
curves.

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