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Virtual Navigation considering User Workspace: Automatic and Manual Positioning before Teleportation

Yiran Zhang 1, 2 Nicolas Ladevèze 1, 2 Huyen Nguyen 1, 2 Cédric Fleury 3, 4 Patrick Bourdot 1, 2
1 VENISE - Virtual & augmented ENvIronments for Simulation & Experiments
LIMSI - Laboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur
3 EX-SITU - Extreme Interaction
Inria Saclay - Ile de France, LRI - Laboratoire de Recherche en Informatique
Abstract : Teleportation is a navigation technique widely used in virtual reality applications using head-mounted displays. Basic teleportation usually moves a user's viewpoint to a new destination of the virtual environment without taking into account the physical space surrounding them. However, considering the user's real workspace is crucial for preventing them from reaching its limits and thus managing direct access to multiple virtual objects. In this paper, we propose to display a virtual representation of the user's real workspace before the teleportation, and compare manual and automatic techniques for positioning such a virtual workspace. For manual positioning, the user adjusts the position and orientation of their future virtual workspace. A first controlled experiment compared exocentric and egocentric manipulation techniques with different virtual workspace representations, including or not an avatar at the user's future destination. Although exocentric and egocentric techniques result in a similar level of performance, representations with an avatar help the user to understand better how they will land after teleportation. For automatic positioning, the user selects their future virtual workspace among relevant options generated at runtime. A second controlled experiment shows that the manual technique selected from the first experiment and the automatic technique are more efficient than the basic teleportation. Besides, the manual technique seems to be more suitable for crowded scenes than the automatic one. CCS CONCEPTS • Human-centered computing → Virtual reality; Interaction techniques; User studies.
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https://hal.archives-ouvertes.fr/hal-03066078
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Submitted on : Tuesday, December 15, 2020 - 9:56:17 AM
Last modification on : Tuesday, November 9, 2021 - 5:04:04 PM
Long-term archiving on: : Tuesday, March 16, 2021 - 6:46:45 PM

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Yiran Zhang, Nicolas Ladevèze, Huyen Nguyen, Cédric Fleury, Patrick Bourdot. Virtual Navigation considering User Workspace: Automatic and Manual Positioning before Teleportation. VRST '20 - 26th ACM Symposium on Virtual Reality Software and Technology, Nov 2020, Virtual, Canada. pp.1-11, ⟨10.1145/3385956.3418949⟩. ⟨hal-03066078⟩

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