I tried out AR Foundation a little by placing a plane with a video player in the SampleScene. It worked as expected on iOS, but on Android I faced a problem: The video gets rendered through the camera feed, as seen in this video: https://www.dropbox.com/s/05zsjpsx8fzm925/Screen recording AR Foundation.mp4?dl=0 Trying to render the background image to a new texture only when a new frame is available has the same result. I'm using Unity version 2018.2.2f1
It's a known issue; see https://issuetracker.unity3d.com/issues/ar-camera-does-not-work-with-video-player-on-arcore We don't have an estimate for a fix yet.
Is there an update on this? For now I'm using Vuforia to get videos in AR working and that works fine.