hi,

i have some trouble with 'bezier' curves. same set of points used in 'prism'
and in 'sphere_sweep' give not the same curve.

#declare courbe = prism {
  bezier_spline
  0, r,
  60,
  p1, p2, p3, ..., p60
  }

#declare spheres = sphere_sweep {
  b_spline,
  60+3,
  p1,r
  p2,r
  p3,r
  ...
  p60, r
  p1, r // for closing the curve
  p2, r
  p3, r
  }

please see image in "povray.binaries.images : bezier curves problem"

what do you think about that ?
where is my mistake ?

@+
louis

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