Google Cardboard API and VR Viewer December 26 2014, 2 Comments
Google recently released a Cardboard API for Android VR apps. Included is a great new capability to configure Cardboard app rendering for different viewer screen and lens sizes . The configuration is changed via a QR code that manufacturers provide with their product. By default, Cardboard apps are configured for a 5in smartphone with 25mm lenses.
At the present time, however, Google has not yet released the tools which would allow for non-default Cardboard configurations. Until this happens, Cardboard API-based apps will not properly fill your Nexus 7 screen. Note that this affects only a small number of apps. Most VR apps and content will display perfectly.
method for manufacturers to embed the parameters of the viewer
directly into a QR code or NFC tag.