Ire Eom  Hanna Lee  Adithya B  Youngho Chai

10.5626/JOK.2019.46.5.419

FPS (First Person Shooter) game vestibulo-ocular reflex Unity Eye tracking foveal range

Using a dual gaze with eye movement in a first-person game provides a stable view while minimizing blurring of images. The First Person Shooter (FPS) game is based on a first-person viewpoint, since the camera responsible for the player`s gaze and the characters in the game are combined. Thus, when the character moves, the viewpoint moves together, which is the same principle underlying fixed vision with a still head. However, the eyes and the head are separate. Therefore, under multiple eye movements, the head follows the eye after gazing at the object initially, which allows a steady gaze at an object even under body movements.
In this paper, we propose a stable perspective based on the principle of vestibular reflex to the camera in the FPS game. The game environment is created using the Unity game engine, and the stable viewpoint of the dual gaze is demonstrated by comparing the viewpoints when the eye and head are fixed under specific scenarios and during the vestibular reflex.