TechViz can also be used with 3DRudder which offers to navigate and to move in a 3D environment using only your feet, your hands being free. The device is used while seated, all you have to do is simply rest your feet on it.  To move forward, you tilt the device forward; to move to the right, you tilt the device to the right, and so on and so forth. Rotating the device implies a similar movement in the game or the CAD software. Up and down movements are managed by applying pressure to the right or the left of the platform.

You can see below its use during the it3D show in Bordeaux in October 2015.