JEMC said:
Maybe this will help you: |
From the article:
"Head tracking means that when you wear a VR headset, the picture in front of you shifts as you look up, down and side to side or angle your head. A system called 6DoF (six degrees of freedom) plots your head in terms of your x, y and z axis to measure head movements forward and backwards, side to side and shoulder to shoulder, otherwise known as pitch, yaw and roll."
But what about up and down?? Sure I can look up and down inside the VR world? So then it should be called eight degrees of freedom.