This application was created by inspiration of some set of statical exercises related to the neck health. An example of the set of excersizes (but it had realized only one for now): https://www.verywellhealth.com/gentle-neck-stretching-exercises-2696365

You can place a few balls on the scene (one in the center of sigh, and two left and right, its positions should be as maximum angle to the left and to the right accordingly).

Controlls:

1. Press the right trigger to place a ball into the scene.
2. Press the A button to clear the scene.
3. Press the right grep button to correct the ball's position or rotate background picture.

Settings:

1. The distance beetwen forehead and neck axis (distance between green ball and forehead, see on the help page). Application will show a warning if your head will move too far from the starting position.
2. Time of seconds per looking on the ball. After that period the counter increases by one.

Credits:

1. An example of the set of excersizes (but it had realized only one for now): https://www.verywellhealth.com/gentle-neck-stretching-exercises-2696365
2. Music: airtone's track blackSnow http://dig.ccmixter.org/files/airtone/63513
3. Head model: https://www.thingiverse.com/thing:4857720