Before any motion capture session can begin, one must first calibrate the physical volume in which the motion capture actor will perform their act with the virtual volume. This is done by waving a wand with markers on it around the physical space. This creates data points for the optical camera system to accurately determine the position of each camera within the room. Once the software (Vicon Blade) has determined the position of each optical camera, the software must then be told the directions of the axis. Some 3D software packages differ when it comes to axis direction. Unreal Engine for example uses Z-Up coordinate system whereas Autodesk Maya defaults to Y-Up. In order to accurately coordinate the axis direction with the software package we may export to, what’s called an ErgoCal L-Frame must be placed at the origin point in the room. In this case, an ErgoCal L-Frame Y-Up was used since the motion capture data was being exported for Autodesk Maya.