Abstract:
Controlling a virtual character with a pen input device is difficult. Pen input
devices require freeform gestures and users are not confined to particular mapping of a
key or a button that is exactly repeatable. This is a problem since an intuitive motion
gesture for one user might not be intuitive for another user. In this paper, we explore user
preferred input gestures for character control through user experiments. Most previous
pen input gesture sets are based on the preference of the developer. Our goal is to try to
find common pen gesture features for common commands through user experiments. For
our experiment, we have chosen navigational motions that are common for controlling a
character in a virtual world. The users were asked to make gestures for a set of
navigational motions according to their intuition. We then analyzed the gesture data and
outlined some gesture design guidelines as well as compared the resulting gestures to
those used in existing applications that use pen devices for character control.
Description:
TABLE OF CONTENTS
Page
1 INTRODUCTION…………………………………………………… 1
2 OVERVIEW…………………………………………………………. 3
3 BACKGROUND……………………………………………………. 5
4 EXPERIMENT……………………………………………………… 7
4.1 Experiment Goal…………………………………………….. 7
4.2 Experiment Setup…………………………………………… 8
4.3 Experiment Method…………………………………………. 8
5 ANALYSIS………………………………………………………….. 10
5.1 Aerial Perspective………………………………………….. 10
5.2 Following Perspective…..…………………………………… 14
5.3 First-person Perspective……………………………………… 19
5.4 Discussion…………………………………………………… 21
6 COMPARISONS……………………………………………………. 25
7 DESIGN APPROACH………………………………………………. 29
7.1 Fundamental Movement Design…………………………….. 29
7.2 Advanced Movement Design……………………………….. 30
8 SUMMARY…………………………………………………………. 32
8.1 Conclusion…………………………………………….. 32
8.2 Future Work…………………………………………………. 33
9 ACKNOWLEDGMENTS…………………………………………… 35
10 BIBLIOGRAPHY…………………………………………………… 39
