Tracking
Needed for:
- First-person perspective
- "Direct" interaction
- 6DOF - 6 Degrees of Freedom
- Position + Orientation
- 3DOF - 3 Degrees of Freedom
- Position or Orientation
- Position
- X, Y, Z
- Orientation
-
- Euler angles - X rot, Y rot, Z rot
- Rotation axis + angle
- Quaternion
- Rotation matrix (3x3)
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