This week we learned 2D tracking. Before practicing the tracking, we firstly we learned how to use transform. We could rotate, change the scale or make other changes by using this function.
Then we began to track a short video. We could use ctrl + alt to add points quickly.
We put 4 points at 4 corners of the TV, then press the play button on the top to start tracking.
On top of that, we learned another way to do the tracking. Tracker–transform–match-move. We could move points manually to the 4 corners of the TV and do the tracking.
Two ways are the same.
Set to input. Then the replacement screen could follow the TV screen when moving.
Homework:
We practiced to match the picture with the green screen and created rotos to make sure the fingers were not covered.