Shaggy Rug Soho 200x250, 200x290, 250x300 cm from Benuta

https://www.benuta.eu/washable-shaggy-rug-soho-cream-60006400-62101.html?selected_size=11266 

Displacement is used.

For better quality, you need to change the value in the render settings:

For Corona: Render Setup (F10) - Performance - Displacement - Screen Size : 1

For Vray: Render Setup (F10) - Settings - Default displacement - Edge length : 1

To change the color, use the pipette to take material from the sphere with the desired color (large sphere for pile and small for overlock) and apply it to parts of the model.

For Corona render, it is recommended to install version not lower than 1.5, since the glossiness of materials is configured taking into account PBR.

Those who work in V-Ray version 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. Select Blinn, Phong or Ward - what is preferable for you