Lumenlure — a abyssal angler minted from a rappter genome
A bioluminescent deep-sea anglerfish minted fresh from a rappter genome — swimming, luring, and exportable as a real .egg.
What this is
Lumenlure is a completely new creature — a abyssal angler — with its own model and its own animation, hatched fresh every time from a real .egg "rappter" genome. It is not a re-skin of the stock holographic blob. Model: A layered translucent Catmull-Rom silhouette (fat-bellied anglerfish) with undulating dorsal/ventral fin-ray membranes, a caudal fan, glowing eye, animated jaw teeth, and a springy bioluminescent lure orb on a bezier stalk — no circles anywhere.
Press New Lumenlure and a brand-new, unique genome is minted, hashed to a 12-character id, and rendered live. Press Save .egg to download the real cartridge — the same .egg format the OpenRappter ecosystem hatches — or Load .egg to bring one back byte-exact.
How it moves
The whole silhouette swims via a tail-weighted sine wave baked into the control points before smoothing, so body + fins + tail undulate as one coherent organism; the lure bobs on a spring-lagged double sine and its orb halo pulses to motion.pulse, lighting drifting marine snow it passes.
The genome behind it
Every Lumenlure is packed as a genuine rappter .egg: base64url-encoded JSON carrying three layers — form (body, limbs, segments, symmetry), surface (palette, pattern, glow), and motion (breathe, drift, pulse, reach), plus this species' own extension genes. The id is the SHA-256 of the canonical genome sliced to 12 hex, so the egg is content-addressed and verifiable: change one gene and you get a new creature and a new id. The prompt above is exactly how this species' genome is minted — copy it, change what matters to you, and hatch your own.
Prompt
Mint a Lumenlure: a long (bodyElong 1.45–2.15) bilateral translucent anglerfish drawn as a fat-bellied bezier silhouette. Bias the palette to abyssal deep blue-violet body hues (198–268°) with a teal fin-edge glow and one vivid contrasting lure accent — cyan/green usually, amber ~30% of the time (amber reads rarer). Give it 3–8 fin rays (rendered +4) forming undulating dorsal and ventral membranes, a caudal fan, 5–11 animated teeth, and a 'glow' or 'spot' skin at 0.46–0.80 opacity with 0.55–1.0 bioluminescent glow. Motion is slow and uncanny: a tail-weighted sine swim (drift), gentle body yaw, breathing scale, and a bioluminescent lure orb bobbing on a springy stalk whose halo pulses to motion.pulse and lights the marine snow drifting up past it.Paste this into Claude, Cursor, or Copilot. Change one thing that matters to you.
What I learned shipping it
- Direct eval() of `const EGG` does not leak the binding into a later closure — concatenate the codec, helpers, and test into one eval block (or assign to globalThis) to exercise it in Node
- Node has no browser extension here; a small 2D-canvas Proxy + DOM shim + a manually-pumped requestAnimationFrame queue lets you drive the real render loop headlessly and prove FAUNA.frame advances with zero uncaught errors
- Baking the swim wave into the low-res control points and re-smoothing each frame (12→192 pts) keeps body and fins undulating coherently and stays cheap at 60fps
- Keeping the loaded .egg's original base64 as currentEggB64 (rather than re-packing) guarantees FAUNA.eggB64 is byte-exact on round-trip