Week 11 Summary
Pop Through Button Devices for VE Navigation and Interaction
The paper discusses about two input devices called FingerSleeve and TriggerGun which provide some novel ways of interacting through a virtual environment. FingerSleeve device can be worn on the index finger of either hands. It has two buttons on the front and a 6 DOF tracker on the back. TriggerGun is similar to a flight control stick with magnetic tracker and the two buttons placed on the front and the back of the device.
With the use of these devices some interaction techniques are described such as ZoomBack, LaserGrab and SnapShot. In ZoomBack technique the user is transported directly to the target just two feet away. The decision to get back to the original place or to stay at the new location depends upon the amount of pressure on the button. In LaserGrab technique the distance between the user and the target depends upon the relative distance between the user’s hand and head. In SnapShot technique the user is able to take pictures. A light press of button shows a cropping widget. The size of the widget is fixed and the user moves his hand closer of further to select the area of virtual world. A hard press takes the picture.
The authors also provide an example of CavePainting to show the capabilities of the devices. They also mention that these new devices are better than Pinch Glove and also acknowledge that these devices still pose some problems while interacting with virtual environment. For the future work they plan to make the devices wireless, add an additional state to provide more control and changes in the physical characteristics of button to improve usability.
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