There Is No First- or Third-Person View in Virtual Reality: Understanding the Perspective Continuum

Title of the Paper

There Is No First- or Third-Person View in Virtual Reality: Understanding the Perspective Continuum

Paper Information

• Subject Area: Virtual Reality (VR) User Experience and Design Research
• Keywords: Virtual Reality, First-Person Perspective, Third-Person Perspective, Perspective Continuum, Body Perception, Immersion, User Experience

Research Background and Problem

• What problems or challenges did the authors identify?

  • The traditional definitions of First-Person Perspective (FPP) and Third-Person Perspective (TPP) in virtual reality may be insufficient to explain users' perception of perspective.
  • Current VR design predominantly employs the first-person perspective, which limits the diversity of user experiences and the creative expression of design applications.
  • The third-person perspective is less commonly used in VR, and there is a lack of systematic research exploring its impact on user experience.

• Why is this problem important?

  • Researching perspective perception can expand the expressive potential of VR design, enhancing user immersion and interaction experience.
  • Optimizing the application of the third-person perspective in VR could help create richer virtual reality scenarios.
  • A deeper understanding of how users perceive different perspectives will support the development of more creative and inclusive VR designs.

• Research Motivation and Related Work

  • The authors were inspired by traditional game research perspectives, such as the idea that the first-person perspective enhances presence, while the third-person perspective provides an overview of the scene.
  • Previous HCI research has found that factors like body perception and self-location influence user experience, but the combined effects of multiple perspectives on users' perception of VR environments have not been studied.

Solution

• Proposed Solution:

  • The authors propose the concept of a "Perspective Continuum" in virtual reality, suggesting that users' perspective experiences are not limited to the traditional first-person or third-person views but rather exist as a continuous blend of the two.
  • They developed an experimental VR scenario to systematically test the impact of perspective on user experience, including immersion, sense of control, and body perception.

• Innovative Aspects:

  • Introducing the Perspective Continuum model, which shifts users' perspective perception from fixed first-person and third-person views to a continuous perspective experience.
  • Proposing new terminology to differentiate between "in-character" and "out-of-character" views and control modes, providing foundational linguistic tools for academic and practical VR design.

• Implementation Steps:

  1. Create a circular arena scenario as the game environment, where players use a sword to combat virtual enemies.
  2. Set three different camera heights (Normal, Diorama, Giant) and two perspective conditions (first-person and third-person).
  3. Allow users to control the in-game character directly through body movement instead of traditional controllers.
  4. After completing tasks, users answer questionnaires about body perception, immersion, and gameplay experience.
  5. Use statistical analysis (e.g., ANOVA, non-parametric methods) to evaluate differences in user experience under various conditions.

Research Findings

• Specific Findings:

  • The concept of the Perspective Continuum was supported by the data: users did not clearly distinguish between first-person and third-person perspectives but experienced a blended perspective.
  • New terminology based on "in-character" and "out-of-character" views was proposed, reducing subjective differences in users' interpretation of perspective definitions.

• Advantages Compared to Existing Solutions:

  • Developed a perspective design model centered on user perception, which is more flexible than existing fixed perspective designs.
  • Provided a fine-grained analytical framework that allows future VR designs to optimize immersion and body perception based on perspective variations.

• Experimental or Evaluation Results:

  • Users reported higher scores for immersion, sense of control, and body ownership in the first-person perspective.
  • Although scores were lower for the third-person perspective, it offered unique design opportunities, such as providing an overview of the scene and potentially reducing experiential stress.
  • Perspective transitions showed potential for mitigating negative emotions like fear, which could be beneficial in therapeutic applications.

• Limitations and Future Directions:

  • The current experiment focused primarily on a sword-fighting scenario, requiring validation in other contexts (e.g., therapy, training).
  • The impact of design factors, such as the complexity of character animations, on the Perspective Continuum was not systematically evaluated.
  • The long-term effects of perspective exposure on user adaptation and experience remain unclear and require further investigation.
  • The authors suggest that future research should gradually explore how design factors in VR environments influence perspective and how to optimize immersion and sense of control.

This study introduces the Perspective Continuum as a new tool for designers while also reminding developers of the potential negative impacts on immersion and body perception when switching perspectives, further emphasizing the importance of balancing flexibility and design trade-offs.