AR Kit intro - placing 3D objects in a scene and interacting with them in real-time

How does your iPhone translate a screen tap into placing a virtual chair on your floor? Learn the fundamentals of ARKit, from plane detection to raycasting.

#1about 3 minutes

Understanding augmented reality and the ARKit framework

Augmented reality overlays digital information onto the real world, unlike virtual reality which creates a completely new 3D world.

#2about 4 minutes

Exploring the evolution and requirements of ARKit

ARKit has evolved through four major versions, adding features like vertical plane detection and LIDAR-based mesh generation, while maintaining broad device compatibility since the iPhone 6S.

#3about 7 minutes

Choosing a rendering framework and understanding 3D coordinates

ARKit requires a rendering framework like SceneKit or RealityKit to display objects, and it operates in a 3D coordinate system where the origin is set when the AR session begins.

#4about 4 minutes

Managing 3D objects with the scene graph and raycasting

Objects are managed in a tree-like node structure called a scene graph, and raycasting is used to accurately detect surfaces for interactive object placement.

#5about 7 minutes

Building a basic AR app to place a sphere

A simple 'Hello World' application demonstrates how to initialize an AR session, enable debug options, and programmatically add a 3D sphere object to the scene's origin.

#6about 7 minutes

Creating an interactive furniture preview application

This demo showcases an 'Ikea Place' style app that detects horizontal planes and allows users to select and place different 3D furniture models in their real-world environment.

#7about 13 minutes

Implementing plane detection and interactive object placement

A code walkthrough explains how to configure an AR session for plane detection, use a gesture recognizer with raycasting to find coordinates, and dynamically add 3D models to the scene.

#8about 3 minutes

Exploring potential improvements for your AR app

Future enhancements could include detecting vertical planes for hanging pictures, making objects draggable, adding custom lighting for realism, and using a focus point for more precise placement.