Children's Climbing Frame Type 3
Manufacturer: ADANAT
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Length 400 cm
Width 400 cm
Height 150 cm
Polygons - 2729
Vertices - 2973
Material: wood
Model pivot at 0 mark
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In the archive: 2013 and 2016 MAX (Corona+Vray)+OBJ+MTL+FBX
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The Children's Climbing Frame Type 3 consists of logs made of natural wood, positioned at varying distances from each other, allowing a child to move across them while facing minor challenges, thereby stimulating the development of coordination, as well as fostering attentiveness and carefulness.
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https://adanatgroup.ru/katalog/detskoe-igrovoe-oborudovanie/eko-stil/detskie-lazalki/detskaya-lazalka-tip-3/ 
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For those working in V-Ray versions lower than 3.1, please be aware that the materials in the BRDF section are set to Microfaset GTR (GGX). If your version is older than 3.1, the BRDF field will be empty. Choose Blinn, Phong, or Ward – whichever is preferable for you.

For Corona render, it is recommended to use a version no lower than 1.5, as the glossiness of the materials is configured with PBR in mind.