V-Ray versions are 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"

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.

link:
https://item.taobao.com/item.htm?abbucket=14&id=682219386080&mi_id=00002i9mY663--hVOyU2iIPBNV56mchDuaUTDiwszejnDm0&ns=1&priceTId=2147844417846074630108759e11f5&skuId=4885333829758&spm=a21n57.imgsearch.item.3&utparam=%7B%22aplus_abtest%22%3A%228fcc74fb78fd54c5181a625c20f7e9b9%22%7D&xxc=taobaoSearch