This project allows you to display different content to the left and right eyes as the material of any RealityKit model (both planar and curved surfaces). For example, you can cover one eye to simulate a telescope, or use it to present 3D images.
If you want your photos to have the spatial style from the system photo album (such as parallax effects of the frame and color overflow at the edges during immersive viewing), please use this project: https://developer.apple.com/documentation/RealityKit/presenting-images-in-realitykit