https://www.theverge.com/2017/11/9/16628774/apple-clips-2-app-update-iphone-x-selfie-scenes-icloud

Apple is releasing an update to its Clips movie-making app that adds iCloud support and a new “Selfie Scenes” mode that uses the iPhone X’s TrueDepth camera sensors to augment the user onto a 360-degree digital stage. It’s the first big update to the app since it added Disney and Pixar stickers back in July as additional ways to decorate your photos and video clips.

Clips has offered Instagram and Prisma-like filters since its launch, but Selfie Scenes allow users to move around and interact with an augmented landscape. Using the iPhone X’s TrueDepth camera, Clips uses proximity sensors to bring in the person or object in front of the camera and swaps the background with the digital “scenes.” It essentially functions like a green screen in cinematography, but the effect happens in real time and stylizes the object or person to match the background.