Yeah, the idea of camera vs head is how I usually determine inversion.
I thought about it for a bit, and I suppose it has to do with the pivot point of the point of view. In first person shooters, the pivot is ahead of me (the gun, which is waist level and half an arms length in front) meaning no inversion. In planes, the pivot is behind me (usually the wings) and so I invert.
Edit: I also tend to invert on FPS on some older games where I'm forced to put x-axis movement and y-axis looking on the same joystick.
I thought about it for a bit, and I suppose it has to do with the pivot point of the point of view. In first person shooters, the pivot is ahead of me (the gun, which is waist level and half an arms length in front) meaning no inversion. In planes, the pivot is behind me (usually the wings) and so I invert.
Edit: I also tend to invert on FPS on some older games where I'm forced to put x-axis movement and y-axis looking on the same joystick.