About this book:

*AR, VR, and Spatial Apps* is a comprehensive technical guide for developers and designers building immersive experiences across mobile, web, and head-mounted displays. The book establishes a foundational understanding of spatial computing by demystifying core concepts such as coordinate systems, Simultaneous Localization and Mapping (SLAM), and scene understanding. By exploring the specific capabilities of ARKit, ARCore, and WebXR, the text provides a platform-agnostic framework for choosing the right tools—whether native, web-based, or cross-platform engines like Unity and Unreal—to create stable and realistic digital overlays in the physical world.

The book places heavy emphasis on the production pipeline, detailing the creation and optimization of 3D assets using formats like glTF and USDZ. It explains how to achieve visual realism through physically based rendering (PBR), environmental lighting estimation, and real-time occlusion, while also integrating physics and spatial audio to deepen immersion. Beyond visuals, the text explores the evolution of interaction models, moving from traditional touch and controllers to natural inputs like gaze, hand tracking, and voice commands, all while adhering to spatial UX principles that prioritize user comfort and minimize motion sickness.

Addressing the complexities of modern spatial applications, the book covers advanced topics such as cloud anchors for persistent, shared experiences and the networking requirements for real-time multi-user synchronization. It provides practical advice on "performance engineering," focusing on how to maintain high frame rates and manage thermal constraints on mobile hardware. The final chapters transition from development to business, offering a roadmap for testing, telemetry, and distribution through app stores or the open web, alongside an analysis of monetization strategies like in-app purchases and enterprise licensing.

Ultimately, the book serves as a holistic playbook for shipping professional-grade spatial software. It balances technical implementation with ethical considerations regarding privacy and data safety, particularly concerning the sensitive environmental data captured by immersive sensors. By combining historical context, practical code recipes, and future-looking case studies, it equips creators with the skills to build context-aware, performant, and sustainable applications that seamlessly blend digital content with the real world.

What You'll Find Inside:

• Master spatial computing fundamentals including coordinate systems, poses, and anchors for precise virtual object placement
• Learn scene understanding techniques to detect surfaces, estimate lighting, and enable realistic occlusion
• Build production-ready applications using ARKit, ARCore, and WebXR with practical implementation guidance
• Design intuitive spatial interactions using touch, gaze, gestures, and controllers while prioritizing comfort and safety
• Optimize performance and manage power consumption through asset optimization, LOD, and efficient rendering techniques

Who's It For:

This book is designed for designers, developers, and product leaders who want to build production-ready immersive experiences for AR, VR, and spatial computing platforms. It's ideal for those seeking practical, hands-on guidance for creating applications that work across mobile devices, head-mounted displays, and web browsers using modern tools and frameworks.