The model is subdivision-ready (under turbosmooth) only quads there are sweeps for all parts similar elements are collected in stacks that is overlapping.

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In the scene a model of a sofa of the PAVONA SOFA 01 RESTORATION HARDWARE series from 2021 sofa height – 775 mm width – 1840 mm depth – 860 mm seat height – 430 mm. The model consists of several elements everything is assembled into one object and a multi-material is assigned. All materials have been renamed and simplified as much as possible I converted the Corona Render materials and did NOT check them in the scene for rendering.

There are no materials in the FBX and OBJ file just geometry.

Who works in V-Ray version lower than 3.1 be careful in the materials in the BRDF section there is Microfaset GTR (GGX) if your version is older than 3.1 then the BRDF field will be empty. Choose Blinn Phong or Ward – which is preferable for you.