But you don’t want it too small, especially if there’s lots of motion, because if the area you want to track moves outside of the box from one frame to the next, it’ll lose it. You want to try to keep the larger box as small as possible in order to keep the track running quickly. The larger of the two boxes is the area in which you want After Effects to search for the content of the small box. The inner of the two boxes is what you want to track. Matti scales it up and places it over Peter’s eye.
A tracking spot appears on your footage which you can move and resize to place over an obvious contrasting spot. With the clip selected, Matti chooses “Track Motion” from the Tracker panel. Then, right click and choose “Replace with After Effects composition” to set it all up automatically. You can do this easily by draging it onto a sequence in Premiere. It starts by importing your footage into After Effects and dragging it into a new composition. But it’s fairly straightforward, and Matti walks us through the whole process using some clips of his good friend Peter McKinnon. It does involve using After Effects, and not Premiere Pro, which is going to feel a little daunting if you’ve not used it before.