panton chair modified Modello 3D

this is a modified version of original verners pantons chair design.
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blender version used 2.49b
render-yafaray 0.1.1
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model contains of three types of chairs. rough, sub, smooth. all them together contains 1340571 verts.
base model is quad polygons.
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each of them is exported seperately in obj and lwo formats.
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in blender
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model rough is a result of experiment of some external mesh modeler (modifier).
model sub (subsurf) - subsurf modifier added in blender. steps=3
model smooth - the same subsurf modifier plus smooth modifier with
repeat value of 10.
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in 3ds max
verified .obj import
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model rough looks the same.
model sub can be achieved with adding meshsmooth modifier, iterations=3.
dont know how to achieve model smooth (smaller holes).
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in lightwave
verified .lwo import.
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model rough looks the same.
model sub can be achieved with adding subsurf faces modifier.
dont know how to achieve model smooth (smaller holes).
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enjoy the art!