Sizes: 420x420mm
500x500mm

Polys: 80087
Verts: 40972

Turbosmooth is enabled in Render Iteration – 1 mode.

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Other models: https://3dsky.org/users/r27/models 
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Those who work in V-Ray versions 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 – whatever suits you best.
If the CORONA version is higher than 1.4: “For Corona render it is recommended to set the version to at least 1.5 since the glossiness of materials is adjusted with PBR in mind.