https://youtu.be/Hq9MEa83rBwIntroducing Chaos Vantage.
(previously Project Lavina)
Explore your most complex 3D production scenes ray traced in real-time. With Chaos® Vantage, there are no time-consuming conversions. Simply drag and drop your complete V-Ray scene into Vantage and start exploring. There’s also a direct live link available from 3ds Max, so you can use it just like a viewport.
Chaos Vantage requires an NVIDIA RTX series GPU
https://youtu.be/0bGtQiZ21g8
As anticipated Offline renderer are going to get more and more Realtime Features.
Sure Vray benefit from Vantage project.