
Set up the tripod
- Put two markers on the ground, 1 m apart, where you'll kick or run.
- Stand the tripod side-on, about [distance] m away.
- Set the phone landscape, about [height] off the ground.
- Frame your whole body, with room for the run-up.
- In VisXL, tap the two markers on screen.
- If the phone moves, VisXL asks you to tap them again.


