REAL-TIME · OFFLINE · YOURS

SceneStart

Make and export your first real-time browser demo in five minutes. No coding required — you leave with one self-contained HTML file that runs anywhere, offline.

Workshop mode

ABOUT 15 MIN · NO TIMER · 1/6 DONE

Step 2 of 6: Preview Starfield.

  1. Create a handle and messageStep completed

    Your handle is your scene name. The message is what the demo says.

  2. Preview StarfieldStep not completed

    Watch five seconds of real-time depth. Press Escape any time.

  3. Complete the Starfield missionStep not completed

    Make the flight feel fast while keeping the sky sparse.

  4. Switch to Plasma and preview itStep not completed

    Starfield moves geometry through depth; Plasma moves colour through a still field.

  5. Switch to Tunnel and complete its missionStep not completed

    Tighten the spiral without travelling faster.

  6. Export my-demo.htmlStep not completed

    One self-contained file that runs offline, anywhere.

01

Your handle & message

2–8 characters · A–Z 0–9 _ -

up to 20 characters

02

Effect

03

Palette

HELLO SCENE
DEMO

Preview runs fullscreen for 5 seconds. Press ESC to exit. The export is a single HTML file — no internet needed to run it.

Technical preflight

12/12 CHECKS PASS
  • PASS · Handle is valid2+ allowed characters
  • PASS · Message is validat least one allowed character
  • PASS · Playback lasts 5000 msduration is fixed inside the file
  • PASS · Start screen is includedthe demo waits for the viewer
  • PASS · Space or Enter starts playbackkeyboard start is wired up
  • PASS · Escape stops playbackviewers can always exit
  • PASS · Cursor hides during playbacknothing floats over the picture
  • PASS · All CSS and JavaScript are inlineone file, nothing to load
  • PASS · No external resourcesno fonts, images, audio, scripts or stylesheets from the web
  • PASS · Deterministic renderer and seedthe same file always draws the same scene
  • PASS · Footer credit is includedthe start screen credits the tool
  • PASS · Your remix values are exportedspeed=1 · density=420 · fieldOfView=0.9

This checks the exported file's technical structure and playback behavior. It does not certify event eligibility, originality, authorship, or competition compliance.

Big-screen preview

Party projectors may have lower contrast, and small details can disappear when viewed from the back of the hall. These modes change this preview only — your demo and its export are unchanged.

HELLO SCENE

No big-screen warnings.

This check is shown as a still frame. Use the fullscreen preview to judge motion.

Your project file

Save everything you made as one small JSON file on your own computer, then open it again later. Nothing is uploaded anywhere.