Hi guys, i have try to play this in pimax 5k without tracking and vr controller (3dof)

How can i play this using standard xbox gamepad ?

i have tried cardboardmod_start in console, but it doesn't seem to work, the screen is stuck, and i cannot use my keyboard or mouse to even move around.

anyone willing to point me in the right direction here ?, i have read the discussion but cannot find what i'm looking for yet.

Garry mod inside vr look amazing though, i just cannot move around yet.