"Check this early graphics comparison or Robinson The Journey - E3 2015 vs 2016 Polygon's Demo Gameplay"
Robinson: The Journey has just received Vive and Oculus Touch Control Support on PC.
This is Crytek’s first release for HTC Vive.
Lifelike vegetation is coming to CryEngine thanks to the studio’s VR experimentations.
Honestly there isn't much to suggest an actual downgrade. It just looks different in some areas. Now I'm not saying it isn't downgraded. If the E3 demo was running on a PC, chances are that graphical features have been cut.
However, so many times people keep saying downgrade even though it's just a change in tone or lighting or something like that. The best way to know if something is downgraded is to look at specific features like number of shadows and shadow quality, screen space reflections, ambient occlusion,texture quality, geometry detail, object and effects density, volumetric lighting and so on.
for those of you who are complaining about the graphics of psvr, have you missed the disclaimers in a lot of videos that recorded resolution is lower than whats actually in the headset? of course its not going to be as sharp as what we are used to seeing on our hdtvs, but it should be better than what this video shows.