Fourier Epicycle Studio

01 Create START HERE

＋ Choose or drop an image PNG · JPG · WEBP · or paste with Ctrl/⌘ + V

Your image preview appears here

02 Gemini AI ON

Use Gemini AI

Auto clean-up uploaded photos

Sketch style

Model

API key

If Gemini is unreachable, the studio falls back to its built-in tracer automatically.

03 Outline extraction

Method

Edge threshold

Invert foreground / background

Smoothing

Max strokes

Ignore strokes shorter than

Path samples

Auto-update on change

04 Epicycles & style

Fourier terms (circles)

Drawing speed

Ink style

Solid pen colour

Intro morph (assemble circles) Loop playback Show epicycle circles Show connecting vectors Hide jumps between strokes Preview target outline Overlay source image Show sample points

05 Export

PNG background

Records the intro and one full drawing, then stops automatically. MP4 where supported, otherwise WebM.

Space play/pause · R reset · ←→ scrub · F follow pen · +− zoom · 0 fit

Live canvas

Scroll or pinch to zoom · drag to pan · tap to play/pause

PROGRESS0%

TERMS0

SAMPLES0

STROKES0

RMS ERROR–

REC

1.0×

How it's made

Tap a stage to inspect it