Interactive AR Apps: Drag, Scale, and Rotate with Unity and Lean Touch

Creating immersive augmented reality experiences requires intuitive user controls, yet handling multi-touch input on mobile screens can be incredibly complex. This written course guides you through mastering Lean Touch, a powerful asset that simplifies gesture detection in Unity.\n\nYou will transition from placing static AR assets to building fully interactive environments where users can seamlessly drag, scale, and rotate digital objects on their screens. By understanding the core mechanics of touch inputs, screen-to-world raycasting, and gesture thresholds, you will gain the skills to build responsive, production-ready AR applications.\n\nWhat you'll learn:\n- Understand foundational AR input concepts, coordinate systems, and gesture mechanics\n- Configure the Lean Touch library within Unity to detect single and multi-finger taps, drags, and pinches\n- Implement smooth translation, rotation, and scaling constraints for AR objects\n- Integrate Lean Touch workflows with Unity AR Foundation for robust real-world tracking\n- Apply optimization techniques to ensure low-latency touch response and prevent gesture conflicts\n\nThe course starts with essential touch-input terminology and setup steps, then moves systematically through practical script configurations and gesture-mapping exercises. You will read detailed code explanations and analyze logical workflows to build a solid foundation in interactive AR development.\n\nThis course is designed for beginner Unity developers and aspiring AR creators who want to add polished interactivity to their projects. No prior experience with Lean Touch or AR development is required, though a basic familiarity with the Unity interface is helpful.\n\nStep into the world of interactive augmented reality and start crafting responsive mobile experiences today.