RealityKit

1. Essentials

   Covers Understanding the modular architecture of RealityKit, Building an immersive experience with RealityKit, Entity, Component.

2. Presentation

   Covers Views and attachments, Presentation UI, Postprocessing effects.

3. Scene management and logic

   Covers Scenes, Systems, Events, Entity actions.

4. Asset creation

   Covers Reality Composer Pro, Swift Splash, Diorama, Presenting an artist’s scene.

5. Scene content

   Covers Hello World, Enabling video reflections in an immersive environment, Creating a spatial drawing app with RealityKit, Generating interactive geometry with RealityKit.

6. Game development

   Covers Gaming sample code projects, Entity animations, Character control, skeletons, and inverse kinematics, NavigationComponent.

7. Physics simulation

   Covers Collision detection, Simulations and motion, Force effects, Physics joints and pins.

8. Performance improvements

   Covers Improving the Performance of a RealityKit App, Reducing GPU Utilization in Your RealityKit App, Reducing CPU Utilization in Your RealityKit App, Construct an immersive environment for visionOS.

9. Articles

   Covers Gaussian Splat Rendering Guidelines.

10. Classes

    Covers ComputeGraphResource, ComputeGraphSharedUniforms, GaussianSplatResource, ShaderGraph.

11. Structures

    Covers BoundingBoxCalculator, ComputeGraphComponent, ComputeGraphOutputComponent, ComputeGraphRuntimeComponent.

12. Enumerations

    Covers GaussianSplatEvents.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

• Quartz Graphics and Games
• Quick Look App Services
• Quick Look Thumbnailing Media
• QuickLook UI App Services
• QuickTime File Format Graphics and Games
• Reality Composer Pro Developer Tools
• RegexBuilder App Frameworks
• RelevanceKit App Frameworks
• ReplayKit Graphics and Games
• Retention Messaging API App Services
• RoomPlan Graphics and Games
• Roster API App Services