//GroupPortion.bvr\n\n//Parametric surface Mobius Strip\nm=parametricSurface\nm.setMinMax=s,-1,1\nm.setMinMax=t,0,6.5\nm.setEquation=x,((3+s*cos(t/2))*cos(t))\nm.setEquation=y,((3+s*cos(t/2))*sin(t))\nm.setEquation=z,(s*sin(t/2))\nm.setSegmentCount=30 \nm.spawn\n\n//Parametric curve Float\nf=parametricCurve\nf.setMinMax=t,0,13\nf.setEquation=x,(3*cos(t)-.2*cos(t)*sin(t/2))\nf.setEquation=y,(3*sin(t)-.2*sin(t)*sin(t/2))\nf.setEquation=z,(.2*cos(t/2))\nf.setSegmentCount=70\nf.setThickness=0.15\nf.color=red\nf.spawn