Wii Motion Plus Vs. Sony's Motion Controller

[Raze]

WereKitten said:

Raze said:
dmanyouall - Wii remote works in 3D space. Try playing Wii Play, and use the Pool game, it works on an xyz axis - up and down, left and right and forward and back, aka 3D space.

1:1 accuracy refers to where your hand moves the pointer goes, which WM+ excels at. So at best, the Arc can only do as good as WM+

Hmm, not exactly.

The Wiimote, even with WM+, doesn't read translations in space directly with its motion sensors, as the gyroscopes detect rotations. The accelerometers and gyros can be combined to read accelerations, and from those you can compute translations, but you'll need recalibration using the IR pointing because the accelerometers are quite rough in resolution.

It works well enough on certain distances and times between the calibration, but if you were to have a game with gestures based on fine translations in space of the controller, you might have troubles.

On the other hand the position of a Sony wand is read from the fixed camera, so in theory it would be capable of this kind of motion tracking.

Sure, but where your body can move and how it moves all exists in a 3d space. The means of detection of those motions may be different, camera vs accelerometers, but they both are tracking 3D movement. With WM+, it already is tracking these movements in 1:1 time, as with Wii Fencing for example. So yes, the means are different, but the end result is very much the same. Since it is not possible to improve on 1:1 detection, the point stands.