An overview of Unity and RealityKit

Unity is a third-party 3D game engine and can be downloaded from https://unity.com. Unity is normally used to produce high-end 3D games. It is quite expensive if used professionally within a corporation, but there is a free tier license available for students and small businesses or individual developers. Unity is programmed in C#, not Swift, and it includes its own development environment.

Unity 3D is a powerful and widely used 3D engine and development platform that enables developers to build immersive real-time 3D applications, games, and simulations. It’s well known for its versatility across various platforms, including consoles, mobile devices, desktops, and the web. Unity has introduced what they call “PolySpatial technology,” which is designed to power Unity content within the shared space on Apple Vision Pro. This includes support for immersive applications that can run side by side and windowed applications, which...