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Paper Accepted to ACM MMVE Workshop 2021

Title: Influence of Narrative Elements on User Behaviour in Photorealistic Social VR
Authors: Silvia Rossi, Shishir Subramanyam, Irene Viola, Laura Toni, Jack Jansen, Pablo Cesar

Abstract: Social Virtual Reality (VR) applications represent a big step for- ward in the field of remote communication. Social VR provides the possibility for participants to explore and interact with virtual environments and objects, feelings of a full sense of immersion, and being together. Understanding how user behaviour is influenced by the shared virtual space and its elements becomes the key to design and optimize novel immersive experiences. This paper presents a behavioural analysis of user navigating in 6 degrees of freedom social VR movie. Specifically, we analyse 48 user trajectories from a photorealistic telepresence experiment, in which subjects watch a crime movie together in VR. We investigate how users are af- fected by salient agents (i.e., virtual characters) and by narrative elements of the VR movie (i.e., dialogues versus interactive part). We complete our assessment by conducting a statistical analysis of the collected data. Results indicate that user behaviour is affected by different narrative and interactive elements. We conclude by presenting our observations and drawing conclusions on future paths for social VR experiences.

Index Terms: User Analysis, 6-DOF, Social VR, Point Cloud, Immersive Movie

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