RemapVR: An Immersive Authoring Tool for Rapid Prototyping of Remapped Interaction in VR

Research Background and Issues

• Identified Challenges:

  • Although remapping techniques such as relocation, redirection, and scaling in VR have been extensively studied, designers find it difficult to utilize these techniques. This is mainly constrained by the following factors:
    1. Technical Challenges: Designers often lack the ability to quickly program, deploy, and test remapping prototypes.
    2. Knowledge Barriers: Designers may lack comprehensive knowledge of various remapping techniques.
    3. Iterative Rationality of Gain Settings: Gain design must simultaneously meet functional requirements and user experience factors (e.g., reducing sensory conflicts, physical strain, and risks of collisions or falls).
  • Furthermore, current immersive creation tools, while alleviating some burdens for non-programming users, do not support the complete design requirements of remapping, particularly in addressing sensory conflict issues.

• Significance:

  • Remapping techniques can decouple the spatial property mapping of real and virtual objects through visual manipulation, enhancing user capabilities such as expanding interaction methods in limited spaces and creating immersive illusions.
  • However, due to the aforementioned difficulties, remapping techniques have not been widely applied in practical VR applications, leaving the potential of this field underexplored.

• Research Motivation and Related Work:

  • Based on 24 existing remapping techniques and their common characteristics, this paper aims to develop a high-fidelity immersive creation tool—RemapVR—to provide designers with a more intuitive environment for prototype iteration.
  • The authors draw inspiration from emerging immersive creation tools characterized by "What You See Is What You Get" (WYSIWYG) (e.g., gesture interaction and smart object interaction tools), but these tools lack support for remapping.

Proposed Solution

• Proposed Solution:

  • The authors developed RemapVR, an immersive creation tool focused on rapid prototyping, iteration, and validation of VR remapping interactions.
  • RemapVR addresses technical and knowledge barriers by providing a unified framework, templates, and design space to help designers quickly understand and create new remapping prototypes based on their needs.
  • The tool employs multi-branch creation processes and visualization strategies (e.g., gain relationships and sensory conflicts) to help designers balance functional and user experience factors.

• Innovations:

  1. Technical Summarization and Promotion: Summarizing and extracting common characteristics of remapping gain configurations from existing literature.
  2. Sensory Conflict Visualization: Introducing dynamic visualization combined with knowledge of sensory conflicts to help designers select gain parameters rationally.
  3. Structured Prototype Creation Process: Supporting various gain parameter configurations and full-process iteration through a flexible input-output event-driven workflow.

• Implementation Steps:

  1. Provide a library of existing remapping technique templates to support designers in quickly using and experiencing them.
  2. Develop multiple perspectives (e.g., first-person experience view and third-person observation view) to support comprehensive understanding.
  3. Create events and construct gains (binding input events with output events).
  4. Enhance the flexibility of gain parameter settings, including dynamic parameter curve editing.
  5. Guide users in the preliminary quantification of sensory conflicts and provide references for optimizing user experience.
  6. Offer iteration and testing modes to help designers optimize prototype effects.

Research Outcomes

• Specific Achievements:

  • Introduced the first immersive creation tool focused on rapid prototyping of remapping interactions, achieving comprehensive coverage from understanding existing techniques to customizing new remapping methods.
  • The template library includes 24 existing remapping techniques, organized into 10 functional categories (e.g., jump relocation and directional redirection), significantly improving design efficiency.

• Experimental Results and Advantages:

  • The experimental tasks were divided into two parts:
    1. Prescribed Tasks: Participants used existing templates to solve scenario problems, completing each task in an average of 5.5 minutes.
       • 100% of designers reported that the template library improved creation efficiency.
       • Regarding user experience, 50% of the remapping prototypes scored ≥ 4 points (out of 5) in user evaluation surveys.
    2. Creative Tasks: Participants successfully created 13 new remapping techniques (e.g., tilted perspective redirection and Spider-Man interaction), with most innovative prototypes receiving positive user feedback.
       • Approximately 71% of designers expressed confidence in the effectiveness and rationality of their prototypes.

• Comparison with Existing Solutions:

  • Compared to traditional tools (e.g., Unity or Unreal) and existing immersive creation tools, RemapVR extends comprehensive support for remapping design and significantly lowers technical barriers, particularly in sensory conflict handling and interaction event customization.
  • Through visualization methods and diverse creation modes, even designers without programming backgrounds can complete complex remapping designs.

• Limitations and Future Directions:

  1. Currently, only visual-based remapping is supported; future work will integrate multi-sensory remapping, including auditory and haptic modalities.
  2. The evaluation of sensory conflicts for dynamic gain parameters needs improvement, requiring models that better accommodate individual differences.
  3. RemapVR operates independently; future plans include integration with other mainstream VR prototyping tools (e.g., Unity or other immersive tools) as plugins or modular solutions.
  4. Expand rules to support more complex combinations of multiple remapping techniques and optimize the interface's information visualization layout.

Conclusion

Through templates, dynamic visualization, and multi-faceted interaction design, RemapVR significantly advances the transition of VR remapping techniques from laboratory research to practical applications. This tool not only lowers technical barriers and facilitates the development of novel interaction scenarios but also demonstrates its efficiency, applicability, and potential value through user experiments, laying the foundation for the widespread adoption of remapping techniques in VR applications.