what SDKs should I used for augmented reality?

To develop augmented reality (AR) experiences using Apple's SDKs, you should consider the following key frameworks and tools:

1. RealityKit: This framework is essential for building AR experiences. It includes APIs for rich materials, virtual lighting, blend shapes, inverse kinematics, and animation timelines. RealityKit also provides low-level mesh and texture APIs that work with Metal compute shaders for improved control over rendering. These features enable dynamic and responsive interactions in AR environments. (Platforms State of the Union)

2. ARKit: ARKit is a core framework for AR experiences across Apple's platforms. It powers spatial experiences with deep interaction and understanding of the user's environment. If your app already uses ARKit, you are well on your way to creating great spatial computing apps. (Platforms State of the Union)

3. VisionOS SDK: For apps targeting VisionOS, you can use the VisionOS SDK to compile and run your AR apps. This SDK supports rendering to a CMTL layer or directly to a relative texture with the new low-level texture API, providing more control over the rendering process. (Bring your iOS or iPadOS game to visionOS)

4. Reality Composer Pro: This tool offers an intuitive way to edit and place virtual content. It integrates with RealityKit and ARKit APIs, allowing you to create and manage AR scenes effectively. (Explore object tracking for visionOS)

These SDKs and tools are designed to work seamlessly across Apple's platforms, enabling you to create immersive and high-performance AR experiences.