I tried to run the Samsung Gear VR Unity Demo (Exercise) App that Samsung provides, from the link below:http://www.samsung.com/us/samsungdeveloperconnection/developer-resources/gear-vr/apps-and-games/exercise-4-adding-functionality.html
I used Unity 5 to deploy the app into Samsung Gear VR and Samsung Galaxy S6 Edge. Initially the app always crashed, until I change the "Button_Advance" and the "Button_Decrement" multi materials into a single material.
The problem is the "Button_Advance" and the "Button_Decrement" game objects are not clickable on the Samsung Gear VR. It seems like the Raycast is ignored by the button colliders. The buttons are only clickable on the desktop PC.
I tried to create some UGUI buttons, and they are also clickable on the desktop PC, but not on Samsung Gear VR (I use a PC mouse with OTG cable attached to the Samsung Gear VR to click).
How to make the "Button_Advance" and the "Button_Decrement" game objects clickable on Samsung Gear VR and Samsung Galaxy S6?