//surface.bvr\n//parametric surface\ns=parametricSurface\ns.setMinMax=s,-5,5\ns.setMinMax=t,-5,5\ns.setEquation=x,(3)\ns.setEquation=y,(s)\ns.setEquation=z,(t)\ns.setSegmentCount=20\ns.color=green\ns.spawn\n\n//sphere.bvr\n//sphere surface\nc=parametricSurface\nc.setMinMax=s,0,6.6\nc.setMinMax=t,0,6.6\nc.setEquation=x,(4*cos(t)*sin(s))\nc.setEquation=y,(4*sin(t)*sin(s))\nc.setEquation=z,(4*cos(s))\nc.setSegmentCount=20\nc.color=blue\nc.spawn\n\n//circle.bvr\nci=parametricCurve\nci.setMinMax=t,0,6.6\nci.setEquation=x,(3)\nci.setEquation=y,(2.7*cos(t))\nci.setEquation=z,(2.7*sin(t))\nci.setSegmentCount=100\nci.setThickness=0.2\nci.color=red\nci.spawn