13. Camera Tracking in Blender

When you want to mix your 3D objects into a real video, you need a camera in the 3D world that moves in exactly the same way as the camera that filmed the real-world footage so the 3D objects fit perfectly into the scene. Camera tracking is the process that allows you to track features in the real video to give Blender information about the perspective so it can generate a 3D camera that mimics the real one. Until very recently, you needed expensive specialized software to do this, but now Blender provides a pretty efficient alternative and the best thing about it is that you don’t need to import/export scenes or use any other software; everything you need is already inside Blender! In this chapter, you’ll learn the basics of camera tracking in Blender.