A starting point for much of VR is gaming. So, we might as well start out from there, too! We are going to give our character, Ethan, a life of his own. Well, sort of (or not), because he's going to become a zombie!
We left off at the diorama, with Ethan hanging out. You can make him run around the scene if you have a keyboard or gamepad, but in today's VR having that is not guaranteed. In fact, if you're viewing the scene with a Google Cardboard, it's pretty unlikely that you'll have a handheld controller (notwithstanding the Bluetooth game controllers). Let's be honest. Even with the Oculus Rift, requiring a keyboard or a gamepad controller is not very user-friendly, since you can't see your hands. Perhaps, there's another way to make him move around. One technique is to use the direction of your gaze while wearing your VR headset.
Before we attempt this, we'll first transform Ethan into a zombie and have him walk around aimlessly without any user control. We'll do this...
