how to get first-person view?

I want to do visual navigation in mujoco, and need the camera to rotate if the agent rotate an angle.
I define the camera as follows:

Code:

<camera name="track" mode="trackcom" target="torso" fovy="45" pos="-2 0 0.3" xyaxes="0 -1 0 0 0 1"/>

But the camera always point to a fixed direction. How can I get the first-person view?

Thanks!

 

Sorry, the above code has a mistake, I'm using the following definition:

Code:

<camera name="track" mode="trackcom" fovy="45" pos="-2 0 0.3" xyaxes="0 -1 0 0 0 1"/>

 

After do some trials, the mode "fixed" of camera solves my issue.