About two years ago he experimented with photogrammetry, this is the first model.
Polygons - 68 thousand
Summits - 68 thousand.
Who works in the V-Ray version is lower than 3.1. Be careful, in the materials in the BRDF section there is a Microfaset GTR (GGX), if your version is older than 3.1, the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable to you.