How can an OAR be brought to Google Cardboard. The first steps I did by using the tool “Transforming an OAR to Unity” which is provided by Fumi Iseki, Austin Tate, Daichi Mizumaki und Kohe Suzuki. The tool was presented by Austin Tate in OSCC18.
The transformation, I did it by using Ubuntu Unix, turns the OAR content into DAE files which I imported to Unity. Then I embedded the functions that Google provides for Cardboard development with Unity. For the next step watch the Presentation.