There is a TurboSmooth modifier in the scene - 1 Render iters (awning, braces and crutches), the stack is not collapsed. There is no modifier in the export file.

File Format:
- 3ds max 16 corona render
- 3ds Max 16 vray
-OBJ

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 - whatever 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.