Image shows off geometric complexity. There are 595 small colored spheres behind the refractive sphere. The floor is reflective and there are also 3 lights in the scene as can be seen in the shadows.
Image shows off reflection and refraction using the Schlick's approximation. There are 3 light sources as can be seen by the shadows. The two reflective boxes help show off the 5 colored balls behind the refractive sphere in the center.
Image shows off Global Illumination. The light from the side walls and ground bleed onto the white sphere.
Unity gave me a lot more grief than I originally thought it would. It crashed a lot and the provided sdk's for google cardboard didn't seem completely right. The recticle wasn't pointing to the correct position right some times so I had to tweak the given GvrRecticle object a little to fix it. This allowed be to get the navigation and box pushing scripts to work properly.