This tutorial goes through how to do markerless augmented reality for beginners using the Unity 3D game engine. The app we will be making will work for Android or IOS mobile devices. Most of my videos have been using Vuforia so I wanted to do something a little different. It seems the standard in Markerless AR is the Kudan plugin but I decided against that because it requires a wildcard provisioning profile to build out (meaning you need a $100 dev license from apple). Instead we are going to do a augmented reality app from scratch and augment everything with respect to the phones orientation using it's gyro.