//surface.bvr\nh=parametricSurface\nh.setMinMax=s,-1,1\nh.setMinMax=t,0,6.28\nh.setEquation=x,((3+s*cos(t/2))*cos(t))\nh.setEquation=y,((3+s*cos(t/2))*sin(t))\nh.setEquation=z,(s*sin(t/2)\nh.setSegmentCount=20\nh.color=255,0,0\nh.spawn