Curtains with a pattern
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Renders in the preview are made in Corona Render 12
Conversion of materials for V-Ray tested on render

Objects in scene have OpenSubdiv modifier assigned - 1 iteration, stacks are not collapsed
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The fur is made using a displacement map, without the use of modifiers or plugins.
For better quality, you need to change the parameters in the settings:
Corona - Render setup/Performance/Performance Setting/Displacement/Screen size = 1px
Vray - Render setup/Setting/Default displacement/Edge length = 1px
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textures with individual names,
materials and objects with identical names
The materials are simplified as much as possible, without using composite, layered, fallof, etc.
basic textures seamless
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Format: Max2014+Fbx
Render: Corona v12 (LegacyMtl),Vray 6

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of materials is configured taking into account PBR

In V-Ray lower than 3.1, in the BRDF section there is Microfaset GTR (GGX), be careful. If your version is older than 3.1, the BRDF field will be empty. Select Blinn, Phong or Ward - what is preferable for you.