WebXR Foundations: Reference Spaces and the Render Loop

The web is becoming a powerful platform for immersive experiences, but building virtual and augmented reality in the browser requires a solid grasp of how devices track space and render frames. This text-only course guides you through the core mechanics of the WebXR Device API, focusing on how to position virtual objects in the real or virtual world and how to keep your visuals running smoothly. What you'll learn: - Understand the fundamental concepts of WebXR, including inline, local, and bounded reference spaces. - Configure the WebXR render loop to continuously update and draw frames at optimal device refresh rates. - Apply coordinate systems and spatial tracking to align virtual content with the physical environment. - Manage user inputs and modern hand tracking capabilities within the XR session lifecycle. - Optimize rendering performance for mobile browsers to prevent motion sickness and lag. You will start with the foundational definitions of XR sessions and reference spaces before moving on to setting up a robust rendering loop, handling user interactions, and implementing modern performance best practices. This course is designed for web developers new to spatial computing and XR development; no prior WebXR experience is required, though a basic understanding of JavaScript is recommended. Start reading today to build the foundation for immersive, web-based spatial applications.