Although it was sung, it is already official that Unreal Engine 4 is being prepared for the HTC Vive with the Steam VR API, as well as to support new features of Project Morpheus.
Valve confirmed that it would have two twin APIs: SteamVR and OpenVR, the only difference being that the first one incorporates all the features of SteamWorks, while the second one allows compatibility with Steam devices from outside Steam, a very interesting option for those who do not want or cannot publish their games in the Valve store but do want to support their ecosystem of virtual reality devices. Thus, Unreal Engine 4 continues in its particular battle with Unity to take over the domain of virtual reality, although neither of the two should lose sight of Crytek, which has also shown that it does not intend to stand idly by before the arrival of this technology on the consumer market.
As for Morpheus, Unreal Engine 4 was prepared a few months ago, but now it will support new unspecified functionalities, perhaps they refer to asynchronous reprojection, which allows developers to create experiences at 60 fps that the external Morpheus hardware will be responsible for converting to 120.
