Chair Calligaris HOLLY
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Fabric color is set by two CoronaColor/VRayColor
Height mm: 815;
Width mm: 650;
Depth mm: 535.
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With TurboSmooth enabled:
Polygons: 4830

Without TurboSmooth:
Polygons: 38640
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https://www.calligaris.com/CSI/en/products/chairs/cs2056-360-holly?c=CS2056%2520360_CS2056020015S0H00000000 
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For Corona render it is recommended to install a version of at least 1.5 since the glossiness of materials is configured with PBR in mind.
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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 – whichever suits you best