
This head tracking model contains three emitting IR diodes, which means that six degrees of freedom of the user's head movement can be related to the software, and it's charged by two 1.5 Volts batteries. It has been built according to
Freetrack 2.1 specification, but it can be used with
version 2.2 of Freetrack if the dimension of the model, visible on figure 1, are entered into the 2.2 version of the program. Alternately, those interested can download preset configuration files available at the bottom of this...