POV-Ray: Newsgroups: povray.binaries.images: Sphere Sweep 1.2 Quadratic spline question

POV-Ray : Newsgroups : povray.binaries.images : Sphere Sweep 1.2 Quadratic spline question		Server Time 23 Dec 2024 12:40:46 EST (-0500)

From: Cousin Ricky
Subject: Sphere Sweep 1.2 Quadratic spline question
Date: 8 Sep 2020 03:09:22
Message: <5f572e22$1@news.povray.org>

The red curve is a cubic Bézier using
   { P1, P2, P2, P3 }

The green curve is a cubic Bézier using
   { P1, P2 * 2/3 + P1 / 3, P2 * 2/3 + P3 / 3, P3 }

The blue curve is an actual quadratic Bézier using
   { P1, P2, P3 }

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