Volumetric carpets Zen from Bolia
Available in three colors: creme, biege, dark biege
https://www.bolia.com/en/products/22-152-04_00001/?id=22-152-04_00001 
Dimensions: 1800*2400 mm
https://www.bolia.com/en/products/22-152-04_00001/?id=22-152-03_00001 
Dimensions: 1400*1450 mm

Polys: 36,225
Verts: 36507
TurboSmooth open

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured taking into account PBR

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