Wooden blinds for the attic window

Wooden folding Venetian blinds for dormer and sloped window openings. The color of the wood is dark brown, brown, gray. The slope angle of the roof is 30 degrees.
Format: Max2017+Fbx
Render: Corona v11 (LegacyMtl),Vray 3.2
For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of the materials is adjusted 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, then the BRDF field will be empty. Choose Blinn, Phong or Ward – whichever is preferable for you.