A room-scale virtual reality (VR) configuration allows users to physically walk within an interactive area while reflecting their real-world motion in the virtual environment. Room-scale VR provides developers of serious games and virtual simulations the opportunity to develop more realistic applications that are highly interactive and engaging. Despite these benefits, room-scale VR hardware is generally more expensive due to motion tracking and headset costs, also requiring a potentially large open physical space for the player to walk around in. Here we provide a quantitative and qualitative comparison between the usability, performance, and engagement of traditional seated VR with a room-scale variation within the scope of a medical-based epidural preparation serious game. This is a first-step in examining the differences between the two configurations and determining whether the additional requirements and resources associated with a room-scale VR configuration are warranted. Although our quantitative results reveal limited differences, the room scale VR configuration led to higher immersion. Our qualitative results indicate that the hardware being used and the requirements imposed upon it by the desired fidelity of the simulation must be carefully considered; higher fidelity implies greater computational requirements that may not be readily available to the average computer user.

中文翻译：

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硬膜外准备严肃游戏中坐着和房间规模的虚拟现实的比较

房间规模的虚拟现实 (VR) 配置允许用户在交互式区域内进行物理行走，同时在虚拟环境中反映他们的真实世界运动。房间规模的 VR 为严肃游戏和虚拟模拟的开发人员提供了开发更具交互性和吸引力的更逼真的应用程序的机会。尽管有这些好处，但由于运动跟踪和头显成本，房间级 VR 硬件通常更昂贵，还需要潜在的大型开放物理空间供玩家走动。在这里，我们提供了可用性、性能之间的定量和定性比较，以及在基于医学的硬膜外准备严肃游戏的范围内，将传统的坐式 VR 与房间规模的变化相结合。这是检查两种配置之间的差异并确定与房间规模 VR 配置相关的额外要求和资源是否有必要的第一步。尽管我们的定量结果显示差异有限，但房间规模的 VR 配置导致了更高的沉浸感。我们的定性结果表明，必须仔细考虑所使用的硬件以及所需的模拟保真度对其施加的要求；更高的保真度意味着更高的计算要求，而普通计算机用户可能不容易获得这些要求。房间规模的 VR 配置带来了更高的沉浸感。我们的定性结果表明，必须仔细考虑所使用的硬件以及所需的模拟保真度对其施加的要求；更高的保真度意味着更高的计算要求，而普通计算机用户可能不容易获得这些要求。房间规模的 VR 配置带来了更高的沉浸感。我们的定性结果表明，必须仔细考虑所使用的硬件以及所需的模拟保真度对其施加的要求；更高的保真度意味着更高的计算要求，而普通计算机用户可能不容易获得这些要求。