The proliferation of virtual reality (VR) has led to its increasing adoption as an immersive medium for delivering presentations, distinct from other VR experiences like games and 360-degree videos by sharing information in richly interactive environments. However, creating engaging VR presentations remains a challenging and time-consuming task for users, hindering the full realization of VR presentation's capabilities. This research aims to explore the potential of VR presentation, analyze users' opinions, and investigate these via providing a user-friendly no-coding authoring tool. Through an examination of popular presentation software and interviews with seven professionals, we identified five design aspects and four design challenges for VR presentations. Based on the findings, we developed VRStory, a prototype for presentation authoring without coding to explore the design aspects and strategies for addressing the challenges. VRStory offers a variety of predefined and customizable VR elements, as well as modules for layout design, navigation control, and asset generation. A user study was then conducted with 12 participants to investigate their opinions and authoring experience with VRStory. Our results demonstrated that, while acknowledging the advantages of immersive and spatial features in VR, users often have a consistent mental model for traditional 2D presentations and may still prefer planar and static formats in VR for better accessibility and efficient communication. We finally shared our learned design considerations for future development of VR presentation tools, emphasizing the importance of balancing of promoting immersive features and ensuring accessibility.

翻译：虚拟现实（VR）的普及使其日益成为一种沉浸式演示媒介，其通过在高交互性环境中共享信息，与游戏和360度视频等其他VR体验形成鲜明区别。然而，创作引人入胜的VR演示对用户而言仍是一项耗时且具有挑战性的任务，这阻碍了VR演示潜力的充分发挥。本研究旨在探索VR演示的潜力，分析用户观点，并通过提供用户友好的无代码创作工具对此进行探究。通过对主流演示软件的考察以及对七位专业人士的访谈，我们识别出VR演示的五个设计维度和四个设计挑战。基于这些发现，我们开发了VRStory——一个无需编程的演示创作原型系统，用以探索应对这些挑战的设计维度与策略。VRStory提供了多种预定义且可定制的VR元素，以及布局设计、导航控制和资源生成模块。随后，我们招募12名参与者开展用户研究，以探究他们对VRStory的观点与创作体验。研究结果表明，尽管用户认可VR中沉浸式与空间化特性的优势，但其对传统二维演示往往持有稳定的心智模型，并且可能仍倾向于在VR中使用平面化与静态化格式，以获得更好的可访问性与更高效的沟通效果。最后，我们分享了为未来VR演示工具开发所总结的设计考量，强调在推广沉浸式特性与确保可访问性之间保持平衡的重要性。