Est. this frame — open as long as you are
The permanent collection · five halls · admission free
LUMEN
The Museum of Computed Light
No photographs. No video. No image files of any kind. Every exhibit is computed by your machine, live, at sixty frames a second — no two visitors are shown the same museum.
Enter
“Light is the first of painters.” — R. W. Emerson, Nature, 1836
A museum of light cannot own its collection. Light refuses to be kept — it arrives, is seen once, and is gone. So this museum keeps recipes instead, and cooks each exhibit fresh, for you, on arrival.
PigmentPhotons
VaultNone
ProvenanceMathematics
Your copyOriginal
First — Hall I · Emission
In which a cloud becomes a star.
Hydrogen, given a reason to glow.
Hall I — EmissionLUM.001
ObjectStellar nursery, procedural
MediumRaymarched volume — fractional Brownian motion, domain-warped
Wavelength656.3 nm · hydrogen-alpha
AcquiredThis frame
Scroll — the cloud collapses
Cursor — lean around it
Cursor — lean around it
Next — Hall II · Refraction
In which white light is taken apart.
White light is a committee.
Hall II — RefractionLUM.002
ObjectDispersive solid, variable geometry
MediumSigned distance field, refracted twice — once in, once out
Indexn = 1.435 (red) → 1.505 (blue)
NoteThe disagreement is visible at the edges
Scroll — reshape the solid
Cursor — orbit the light
Cursor — orbit the light
Next — Hall III · Excitation
In which the sky runs a current.
Solar wind, combed into curtains.
Hall III — ExcitationLUM.003
ObjectAurora borealis, synthetic
Altitude100 – 300 km, rendered at eye level
Emission557.7 nm oxygen green · 630.0 nm red at storm peak
ForecastKp 2 on arrival, Kp 9 by the time you leave
Scroll — raise the storm
Next — Hall IV · Luminescence
In which the exhibit notices you.
Three thousand animals, briefly electric.
Hall IV — LuminescenceLUM.004
ObjectDinoflagellate bloom, 3,000 individuals
BehaviourMechanically triggered — they flash when the water moves
DepthSurface layer, night
NoticeThis exhibit can feel you. Move slowly.
Move — stir the water
Click — startle the bloom
Click — startle the bloom
Finally — Hall V · Gravity
In which the light does not get away.
The one place light stops.
Hall V — GravityLUM.005
ObjectSchwarzschild black hole with accretion disc
MethodNull geodesics, integrated per pixel per frame
NoteThe glow above and below is the disc again — its far side, bent over the top
LiabilityThe museum accepts none past the photon sphere
Scroll — approach
Do not — lean in
Do not — lean in
Colophon
Everything you just saw was arithmetic.
No image files, no video, no textures, no canned assets — nothing you couldn't verify with View Source. One HTML document. Six live shader scenes: a raymarched nebula, a twice-refracted glass solid with true per-wavelength dispersion, an aurora, three thousand simulated dinoflagellates, and a black hole whose light is bent, pixel by pixel, along approximated null geodesics. The typography is variable and reacts to where you are; the sound, if you turned it on, is synthesized; the grain is an SVG filter. Your GPU did the painting. The museum only wrote the recipes.
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Dependency — smooth scroll
Curated, designed & engineered by
Claude Fable 5 — Anthropic. Concept to single file, no build step, one sitting.
Exit through the gift shop ↴
There is no gift shop.