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3PI experiment: immersion in third-person view

In this paper, we present the results of the "3PI Experiment" project. The objective of this project is to propose and evaluate an immersive interface based on a third-person view from a video camera, that can be used in augmented reality games. Since this type of interface has not been explored in games, a prototype involving interaction through navigation was developed and employed to assess the impact of the proposed interface on gameplay experience. Different user interface evaluation methods such as cognitive walkthroughs, automatic data collection and questionnaires were combined. It was possible to determine that the proposed interface caused no significant discomfort and had a short learning time, making it suitable for use in games.