begin nurbs_surface,4,4,4,4
knot1 0
knot1 0
knot1 0
knot1 0
knot1 1
knot1 1
knot1 1
knot1 1
weight 1
weight 1
weight 1
weight 1
position 0,0,0
position 1,0,0
position 2,0,0
position 3,0,0
knot1 0
knot1 0
knot1 0
knot1 0
knot1 1
knot1 1
knot1 1
knot1 1
weight 1
weight 1
weight 1
weight 1
position 0,1,0
position 1,1,6
position 2,1,6
position 3,1,0
knot1 0
knot1 0
knot1 0
knot1 0
knot1 1
knot1 1
knot1 1
knot1 1
weight 1
weight 1
weight 1
weight 1
position 0,2,0
position 1,2,6
position 2,2,6
position 3,2,0
knot1 0
knot1 0
knot1 0
knot1 0
knot1 1
knot1 1
knot1 1
knot1 1
weight 1
weight 1
weight 1
weight 1
position 0,3,0
position 1,3,0
position 2,3,0
position 3,3,0

knot2 0
knot2 0
knot2 0
knot2 0
knot2 1
knot2 1
knot2 1
knot2 1
knot2 0
knot2 0
knot2 0
knot2 0
knot2 1
knot2 1
knot2 1
knot2 1
knot2 0
knot2 0
knot2 0
knot2 0
knot2 1
knot2 1
knot2 1
knot2 1
knot2 0
knot2 0
knot2 0
knot2 0
knot2 1
knot2 1
knot2 1
knot2 1
end
