RCWeb Fluid Simulation

Create relaxing colour swirls together on a shared display. Open Fluid Simulation Control on your phone, choose a colour and drag to add flowing trails.

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Screenshot

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Features

  • Flowing colour: Create curls, drifting trails and soft paint-on-water blooms.
  • Momentum: Finger velocity is transferred into the display, so fast strokes keep drifting and slow strokes bloom gently.
  • Multi-User Color Trails: Every controller has its own color, letting several people create distinct swirls on the same screen.
  • Shared Display Flow: The display shows a QR code to open the controller for the current room.
  • Ambient Mode: When the display starts, and again after 30 seconds without controller input, it adds slow automatic swirls so the screen never feels empty.
  • OLED-Friendly Presentation: The base display is true black, with saturated dye colors rendered on top.

How to use it

  1. Open /fluid-sim/ on the main display.
  2. Scan the QR code from one or more phones to open /fluid-sim-c/ in the same room.
  3. Pick a color on each controller and drag on the touch pad.
  4. Use slow gestures for calm ink-like blooms, or faster gestures for energetic streaks and curls.

The centered information box appears on startup and returns after 30 seconds of inactivity. It fades when a real controller stroke is received. The QR code remains in the bottom-right corner and becomes less prominent after the first user stroke.

Documentation • Server Telemetry • Server Stats • Server HTTP Log • Server WebSocket Log