Uploaded April 2026 | Updated September 2026, 3 weeks ago

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Why do we put those small dots on objects before 3D scanning?

In this episode of 3D Scan 101, we explain what markers are, why they’re used, and when they’re really necessary. You’ll also learn how modern markerless scanning works — and how tracking-based systems can achieve reliable results without placing markers on the object.

Using FreeScan Trak Nova, we show how dynamic tracking technology enables fast, efficient scanning — even on large, smooth, or featureless surfaces.

⏱️ Chapters
00:00 Intro: Those Strange Dots
00:27 Welcome to 3D Scan 101
00:42 What Do Markers Do?
01:15 When Are Markers Needed?
01:44 Markerless Scanning Explained
02:42 From Markers to Markerless