Polyhedron CC~ish Subdivision Demo OPENSCAD

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As always. - All OPENSCAD ////////////////////////////////////////////////////////////////////////////// //CC subdivision-ish in that regard this impl don't split edges //subdivides any properly watertight manifold polyhedron : point-list and face-list //[ [10,10,10],[10,-10,-10],[-10,10,-10],[-10,-10,10]], [[2,1,0],[3,2,0],[1,3,0],[2,3,1]]] //usage cc([points,faces],iterations(0=off),curvebias) ////////////////////////////////////////////////////////////////////////////// //Demo Code in=cc(cc(tet(),Sub1),Sub2,-0.5); //one regular and the two passes with negative bias forpointyness t=cc(in,Sub3); //more passes trender(t); //pretty render //polyhedron(t[0],t[1]); //fast //End Of Demo Code Prior art by Wallace and obviously Catmull-Clark