VR SLI ready to use?

according to this thread
nvidia SLI VR (each card rendering each eye) is available? Can somebody confirm that, and explain the curcumstances? Engine Version, dx11 or dx12 only? 4.7.2 release or Source Code only?


I’m trying the feature from the nvidia vrworks branch of ue4 with a two 1080 system but i still got some framedrops here and there…

trying to understand if its something in the vr settings or in the scene.