There is a problem that the screen can not be divided during the card board test. I'm use versions for goolge sdk for unity 1.6 and Unity 5.6.2f1. in emulater(unity game scene),Game Scene does not split when playing. and console display "VRDevice cardboard not supported in Editor Mode. Please run on target device." but, Screen is split when testing on phone. What's the problem?
Google VR SDK for Unity v1.50 (May 2017) or above have removed support for stereo preview in the unity editor. See release notes:
GvrViewerMain will be replaced by GvrEditorEmulator. The editor preview is now mono, not stereo, but will still support simulated headtracking.