@shvrdavid:

The DirectX rendering technology you speak of has been in use now for about 4 years in 3dsmax, as a real time viewport rendering system, called Nitrous viewport rendering.  It ships standard with 3dsmax, and can produce incredibly good results in real time, yes.  However, it requires it's own shader language, and it's shaders and lighting capabilities have their limits when compared to a full blown engine like Vray, or Octane, but it's very good for instant results.  Some effects, like HDRI, looks a little artificial still though, compared to rendering with a full blown engine, like Octane or Vray, probably becuase of the shader limitations, I don't know.

---

Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.