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Unformatted text preview: a Jr. 3 The Wiimote – Motion Data
Data from 3-axis accelerometer senses instantaneous acceleration on device (i.e., force) along each axis
arbitrary units (+/- 3g)
always sensing gravity
at rest acceleration is g (upward)
freefall acceleration is 0 finding position and orientation at rest – roll and pitch can be calculated easily
in motion – math gets more complex
error accumulation causes problems
often not needed – gestures sufficient Advantages easily detect course motions
mimic many natural actions Disadvantages ambiguity issues
not precise (not a 6 DOF tracker) Spring 2009 CAP6938 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. L...
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This note was uploaded on 06/13/2011 for the course CAP 6938 taught by Professor Staff during the Spring '08 term at University of Central Florida.
- Spring '08