VRay 3.6 introduced several "game-changer" technologies that paved the way for modern photorealistic rendering: 1. Hybrid Rendering
For 3D artists and architects working with older pipelines, the combination of and 3ds Max 2017 remains a legendary "sweet spot." It offers a balance of stability and advanced rendering features that modern hardware can still push to the limit. vray 3.6 for 3ds max 2017 google drive
The safest way to acquire older versions is through the Chaos Group Downloads section. If you have a valid license, Chaos allows you to access "Legacy" versions of their software. VRay 3