Hey darinsmyth, I followed your updated guide here: ARKit 4.18 preview 1 - official IOS 11 and XCode 9 - camera feed red? - #5 by darinsmyth - Mobile - Epic Developer Community Forums
Looks like this captures camera rotation and applies it to an in-game camera. Sweet! Does anyone know how to capture physical movement? Or normalize the camera feed (mine also seems strangely calibrated)?