46c6c1cf$1@news.povray.org... Ooops #declare Flute = sphere_sweep { cubic_spline 5, <P1.x, P1.y, 0>, F_fctr*P1.x <P2.x, P2.y, 0>, F_fctr*P2.x <P3.x, P3.y, 0>, F_fctr*P3.x <P4.x, P4.y, 0>, F_fctr*P4.x <P5.x, P5.y, 0>, F_fctr*P5.x // not F_fctr*P4.x as in previous post } Marc
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