Ribbon3D class for 3d lines and ribbons in PV3D Papervision3D 12 Aug 2008 There’s been some great experimentation with 3d lines and ribbons in Papervision3D, notably Felix Turner’s Ribbon3D and of course the Audi A5 website. A project I’m currently working on requires the drawing of ribbons in 3D space, and it’s such a simple yet beautiful effect that I thought it was time to have a quick go at i