VR Natural Walking in Impossible Spaces

Lochner, Daniel and Gain, James (2021) VR Natural Walking in Impossible Spaces, Proceedings of MIG 2021: ACM SIGGRAPH Conference on Motion, Interaction and Games, 10-12 November 2021, Virtual.

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Locomotion techniques in Virtual Reality (VR) are the means by which users traverse a Virtual Environment (VE) and are considered an integral and indispensable part of user interaction. This paper investigates the potential that natural walking in impossible spaces provides as a viable locomotion technique in VR when compared to conventional alternatives, such as teleportation, arm-swinging and touchpad/joystick. In this context, impossible spaces are locally Euclidean orbit-manifolds — subspaces separated by portals that are individually consistent but are able to impossibly overlap in space without interacting. A quantitative user experiment was conducted with n = 25 participants, who were asked to complete a set of tasks inside four houses, in each case using a different locomotion technique to navigate. After completing all tasks for a given house, participants were then asked to complete a set of three questionnaires regarding the technique used, namely the Simulator Sickness Questionnaire (SSQ), Game Experience Questionnaire (GEQ) and System Usability Scale (SUS). Time for task completion was also recorded. It was found that natural walking in impossible spaces signifi- cantly improves (α = 0.05) immersion (as compared to teleportation and touchpad/joystick, r > 0.7) and system usability (over touch- pad/joystick and arm-swinging, r ≥ 0.38), but seems to lead to slower task completion.

Item Type: Conference paper
Subjects: Computing methodologies > Computer graphics > Graphics systems and interfaces
Human-centered computing > Interaction design > Systems and tools for interaction design
Date Deposited: 03 Dec 2021 10:54
Last Modified: 03 Dec 2021 10:54
URI: https://pubs.cs.uct.ac.za/id/eprint/1467

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