Smoothing Modifier is required.

Kettleby sofa

Width 2311 mm
Depth 1041 mm
Height 762 mm
https://www.anthropologie.com/shop/kettleby-sofa 
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Total number of polygons:
Polys: 17,471
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3ds max 2015, Corona renderer, vray, Fbx.
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Clean renderings to you !!!!!!