With Apple iOS 12 and a 8 or newer device, you can place 3D objects in the real world using AR Quick Look, powered by Apple ARKit 2. Tap any of the 3D models below on a device running iOS 12 to view the object and place it in AR. Or click a model on Mac to download the usdz file.
The new USDZ format
At the recent WWDC 2018 event, Apple launched the new USDZ format which is described by its co-creator Pixar as a "zero-compression, unencrypted zip archive" of the USD (Universal Scene Description) format.
The latter has been used by the animation giant for a number of years when working with 3D content, but the introduction of USDZ sees the technology now optimized for mobile devices.
Essentially USDZ is a container that holds a number of files and the required tools to render them.