The Nvidia VR Funhouse branch for UE4 is much bigger news than you realize
It includes support for the ENTIRE VRWorks feature list including single pass stereo!
https://www.twitch.tv/unrealengine/v/86995068
https://github.com/NvPhysX/UnrealEngine/tree/VRFunhouse-4.11 (to see it: https://www.unrealengine.com/ue4-on-github)
http://docs.nvidia.com/gameworks/content/gamemods/vrfunhousemodkit/VRFunhouse_Tutorials.html
how to make a standalone exe! https://www.youtube.com/watch?v=0x2I21gbPnM&feature=youtu.be