CakeVR: A Social Virtual Reality (VR) Tool for Co-designing Cakes

Title of the Paper

CakeVR: A Social Virtual Reality (VR) Tool for Co-designing Cakes

Paper Information

• Research Domain: Virtual reality technology and remote collaborative design
• Keywords: Social Virtual Reality (Social VR), co-design, cake design, remote collaboration, user experience

Research Background and Issues

• Problems or Challenges:

  • In the cake customization process, communication between customers and pastry chefs often occurs face-to-face or via email, which frequently leads to misunderstandings about design details, especially regarding cake size, decorations, and alignment with the celebration theme.
  • Using 2D images and textual descriptions often fails to meet customers' intuitive needs for 3D design.
  • Customers may find the final cake does not match their expectations upon seeing it.

• Research Significance: Customized cakes are not just food but also carriers of emotional expression for special occasions. Addressing communication issues in the cake customization process can enhance customer satisfaction while providing a more efficient and innovative solution for remote customization services.

• Research Motivation and Related Work:

  • With the rapid development of virtual reality technology, Social Virtual Reality (Social VR) has enabled possibilities for remote collaboration in various fields, such as science education and artistic design.
  • However, cake customization, as a unique form of product design, has rarely been explored in conjunction with Social VR.
  • This study aims to bridge the communication gap between customers and designers through Social VR.

Solution

• Proposed Solution: This paper introduces CakeVR, a Social Virtual Reality-based tool designed to assist customers and pastry chefs in collaboratively designing cakes in a real-time 3D virtual space.

• Innovations:

  • Supports collaborative design through stereoscopic modeling and real-time 3D visualization.
  • Intuitive interaction based on virtual gesture operations (e.g., scaling, rotating, moving virtual cake objects).
  • Introduces an immersive 3D experience for cake design, including realistic dimensions and virtual decoration simulations.

• Implementation Steps and Key Technologies:

  1. Requirement Gathering: Conduct semi-structured interviews with pastry chefs and customers to identify the three-stage process and design requirements for cake customization.
  2. System Development:
     • Construct virtual design scenes (e.g., virtual cake shop and celebration scenarios).
     • Develop 3D cake models and user interfaces using Unity3D and Blender.
     • Implement role-based virtual users with interaction and head-tracking via Oculus Rift.
     • Enable gesture-controlled 3D model operations, including movement, rotation, and scaling.
  3. Expert Evaluation:
     • Test system functionality using cognitive walkthroughs and collect user experience feedback and improvement suggestions.
     • Set up testing environments where two users simultaneously enter the same virtual space to design cakes.

Research Results

• Specific Outcomes:

  • CakeVR successfully supports remote collaborative cake customization, encompassing the complete process from concept creation to design and final confirmation.
  • All design requirements (e.g., gesture interaction, real-time 3D visualization, diverse decoration support) were validated.
  • The system achieved good scores in user experience and functionality (average SUS score of 75.0).

• Comparison with Existing Solutions:

  • Compared to traditional 2D photo reference tools, CakeVR offers realistic size simulation and immersive 3D scene experiences, significantly improving communication efficiency and design accuracy.
  • Compared to existing web or mobile customization tools, its real-time visualization and natural interaction greatly enhance the interaction effects and satisfaction between customers and pastry chefs.

• Experimental or Evaluation Results:

  • Expert evaluations show that CakeVR meets all core design requirements, particularly in shared understanding and real-time negotiation with customers.
  • Users generally found CakeVR efficient and intuitive, helping reduce email exchanges and communication misunderstandings.

• Limitations and Future Directions:

  1. Limitations:
     • Lack of detailed realism (e.g., cake textures and materials), which may affect the accuracy of final design expectations.
     • Insufficient emotional expression (e.g., facial expressions) and immersion in virtual characters.
     • Limited depth of interaction in the virtual space (e.g., inability to freely explore scenes).
  2. Future Directions:
     • Enhance the detail representation of cake models in virtual environments (e.g., material textures and flavor simulations).
     • Introduce more design resources, including online search functionality or support for user-generated content.
     • Add emotional expression features (e.g., virtual facial expressions or customizable virtual characters).
     • Explore other application domains, such as collaborative tools for healthcare, cultural heritage display, or online teaching.