PNG Museum and Engineer Assembly co-hosted a hackathon in VRChat.

This document summarizes the slides I presented at the hackathon in text format.

Overview

VRChat is a metaverse platform. You can participate using HMD, PC, or smartphone.

The worlds in VRChat can be controlled using a C#-like programming language called Udon.

The Udon Zettelkasten System I created this time is a VRChat gimmick that allows you to implement a dynamic model and build a Zettelkasten using Udon.

is here.

https://youtu.be/r9OqMWXUDM4

https://vrchat.com/home/world/wrld_b6c40f25-1670-4e73-849e-d8b5f4794951

https://nawashiro.booth.pm/items/6082934

The "Thing" You Often See in Crime Dramas

• The thing where you stick notes on the wall and connect them with strings to organize.
• Zettelkasten - A method of organizing notes.
• Often seen in note-taking apps like Obsidian.
• I wanted to realize that "thing" within VRChat!

Useful in Various Use Cases

• Discussion events like Philosophy Cafes
• Virtual meetings within VRChat
• Idea generation and brainstorming

Udon Zettelkasten System

Developed a PKM gimmick that can be used within VRChat!

(PKM = Personal Knowledge Management)

Feature Introduction ①

• Adding notes: You can specify the title, color, text, and links to other notes.
• Editing/Deleting notes: When you Use a note, details are displayed, and you can edit or delete it.
• Data saving: Save to a notepad, etc., and resume editing even if the instance changes.

Feature Introduction ②

• Multilingual support: ChatGPT did it overnight, so accuracy is 🥴
  • English/Esperanto/Japanese/Korean/Russian/Simplified Chinese/Traditional Chinese
  • Automatically switches based on the system's time zone.
• Calculation limits: Enabled by default
  • As the number of notes increases, the amount of calculation increases exponentially, so limits are set when a certain amount is exceeded.
  • Instead of calculation errors, the operation becomes lighter.
• Export function for LLM:
  • Export function to read as materials for NotebookLM, etc.

Other Initiatives

• First attempt at shaders!
  • I wrote the ground shader for the first time.
  • I wanted to make the ground reflect beautifully like Salar de Uyuni
  • Implemented Fresnel reflection
• Booth store opened!
  • Udon Zettelkasten System will be sold as an asset (sales started at the time of writing this article!).

https://nawashiro.booth.pm/items/6082934

Acknowledgements

I would like to take this opportunity to thank those who helped with the production.

• leafsketch
• 不和カプリ

Thank you very much!

Links

Please try playing in this world!

https://vrchat.com/home/world/wrld_b6c40f25-1670-4e73-849e-d8b5f4794951