Internship← AR & VR Development learning pathAR & VR Development · Module 4 of 10
AR fundamentals
Detect surfaces and place virtual objects.
📖 Key ideas
- Plane detection finds floors, tables and walls.
- Raycasting places objects where the user taps.
- Anchors keep objects fixed in real space.
- Image tracking triggers content from posters or books.
- Light estimation matches virtual lighting to the room.
💡 Real-life example: AR plane detection is the phone finding a table before you can place a virtual cup on it.
Plane detectionFinding flat surfaces
RaycastRay from screen tap into the scene
AnchorFixes content to real-world position
Image trackingRecognising images to show content