Ø 340mm.

TurboSmooth modifier set to 2 render iterations. 2 iterations in the preview.

V-Ray 3.6 and Corona 5 versions

Preview rendered in Corona 5

System unit in mm

For Corona Render: It's recommended to use version 1.5 or higher, as the material glossiness is adjusted for PBR

For those using V-Ray versions earlier than 3.1: In the materials, the BRDF section should be set to Microfaset GTR (GGX). If your version is older than 3.1, the BRDF field will be empty. Select Blinn, Phong, or Ward

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