Introduction to WebXR: Building AR Hit Test Experiences

Augmented Reality is no longer locked inside native mobile applications. With WebXR, you can build immersive AR experiences that run directly in standard mobile web browsers without any external installations. This text-only course guides you through the core concepts of web-based AR, focusing on the essential hit-testing feature. You will understand how to scan physical environments, detect flat surfaces, and place stationary 3D objects with precision using modern JavaScript. What you'll learn: Understand the fundamentals of WebXR, reference spaces, and AR sessions; Configure a basic 3D scene optimized for mobile browser performance; Implement hit testing to detect real-world floors and tables; Place and anchor 3D models securely in a physical space; Apply modern JavaScript patterns to handle user touch interactions in AR; Debug and test WebXR applications using browser developer tools. You will start with the foundational definitions of the WebXR Device API, progress to setting up a lightweight 3D render loop, and finally write the precise code needed to project virtual objects onto real-world coordinates. This course is designed for web developers and beginners curious about 3D web technologies. No prior AR experience is required, though a basic understanding of HTML and JavaScript is recommended. Start building interactive web-based augmented reality today.