3D wave panel. The entire relief was made using geometry, the mesh was optimized, and UV mapping was done. It is recommended to install the Corona version at least 1.5, since the glossiness of materials is adjusted taking into account PBR. Those who work in a V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfacet GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward – whichever is preferable for you