Motion Controllers

Note: This article is under construction and will be published in a few days. Meanwhile refer to v2 documentation:

• User Guide
• Using for Head Tracking
• Wii Remote with Toshiba Drivers

iPi Motion Capture allows to use motion controllers in addition to cameras for improved tracking of smaller details.

• Wrist rotations can be tracked only with motion controllers due to low resolution of video.
• Though head can be tracked with camera, using a motion controller for that purpose greatly reduces the processing time and may provide better accuracy.

Essentially, a motion controller provides 3D orientation value which can be used to track rotations of a single bone it is attached to.

Equipment

PlayStation Move

Wii Remote with MotionPlus

Wii Remote Plus

iPi Recorder supports these models of motion controllers:

• PlayStation Move
• Wii Remote with MotionPlus
• Wii Remote Plus, which has MotionPlus integrated

Your PC should be equipped with a Bluetooth radio module to connect with motion controllers. If you do not have a built-in one, you'll need an USB Bluetooth adapter.

iPi Recorder does not limit the number of connected motion controllers. However, the hardware does. Usually, a single Bluetooth adapter can handle up to 4 PS Move controllers. This is sufficient for a single actor, but for multiple actors you may need more controllers. Thus, additional Bluetooth adapter(s) is required. Unfortunately, standard Windows Bluetooth drivers do not support multiple adapters. To use multiple Bluetooth adapters, it is necessary to install Motion in Joy drivers.

For PS Move, an USB to mini-USB cable is also required to charge your motion controller and for pairing (see next section).

Tip: Unless you already have Wii stuff, we strongly recommend to use PlayStation Move, because of its built-in magnetometer. In short, the presence of magnetometer gives a lot more stable orientation value. Without it, orientation tends to drift around vertical axis, and this leads to less accurate measurements.

Note: On Windows 8.x, PS Move does not work properly using the standard Bluetooth drivers included with the OS. For these OS versions, it is recommended to install Motion in Joy drivers.

Note: The recent revisions of Wii Remote Plus controllers may not work properly using standard Bluetooth drivers. For them, it is recommended to use Toshiba Bluetooth stack.