Run Detail
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Provider
openrouter
Challenge Version
v2.0
Turns
1
Duration
Batched — not timed
Total Tokens
51,918
Input Tokens
26,284
Output Tokens
25,634
Reasoning Tokens
6,747
Reasoning Effort
default
Est. Cost
$0.0077
Started
9/22/2026, 9:44:57 PM
OR Provider
OpenAI
Finish Reason
stop
Generation ID
gen-batch-1790113497-9c7b0cc537e179391044
Turns (1)
Turn #1
26,284 in25,634 out6,747 reasoning51,918 total
user
You make short animated pieces for the web, and you have spent time on the part of the internet that makes cats famous.
Build me a single HTML page: a cat in a living room that lifts off the floor and spins in the air when you click it.
The reference
Make this the Oiia Cat — the spinning cat meme, the one whose loop is written out as "oiia oiia oiiaiooooiai". Match the original's look and feel, not a generic rotation:
- A cream-and-white cat sitting square to the camera, eyes wide, staring straight down the lens, doing nothing.
- It starts turning on its vertical axis. The turn accelerates until the cat is a blur and the face is no longer readable.
- The "oiia" vocal rides the spin. Rate and pitch climb together with it, so the sound is the spin.
- In the edits this page is chasing, the cat leaves the floor. It rises as it winds up and spins in midair, and the room gets pulled into whatever the edit is doing.
Build toward what that meme feels like at full speed: too fast, too loud, and funnier every time it goes further.
The build
- It opens quiet. The cat sitting in a real living room, doing nothing in particular. Push the realism as far as one file will take you — light that comes from somewhere in the room, depth behind the cat, fur that is not a flat shape, a floor that the cat is actually resting on. Someone arriving on this page should need a second to work out that it is not a photograph. That opening second is the whole joke and it only pays off if the room is convincing first.
- Click the cat and it activates: it turns to face the viewer, lifts off the floor, and spins on its vertical axis in midair, fast, with the room going with it.
- Every click after that escalates, and escalation here means crazier, not just faster. Four stages at least, each visibly and inventively past the one before — what the cat does, how high it goes, what happens to the room, what happens to the laws of physics, what else joins in. Stage four should be the one that makes someone send the page to a friend. It still has to be worth watching: a strobing white rectangle is not stage four.
- It makes the sound. The "oiia" loop, synthesized in the file with Web Audio, rising as the spin gets faster. Making it read as a voice rather than as a tone is most of this requirement.
- Sound starts on the click and never before, and I can mute it.
House rules
- One file. Everything inline — no CDN, no external stylesheet, font, script or image.
data:URIs are fine. - No libraries.
- No network at runtime.
- No
localStorage,sessionStorage, cookies orindexedDB— sandboxed frame, they throw. - Return the file as exactly one fenced
htmlblock.
Answer in exactly these sections
The page
The single fenced html block.
The notes
Five bullets.
- How the opening frame gets its realism, and where that realism gives out.
- What you did to make it read as the Oiia cat rather than as a cat that rotates.
- The four stages, in order, and what makes each one crazier than the last.
- How the voice is synthesized, and what keeps it locked to the spin.
- The part you would fix with more time.
assistant
The page
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Oiia Cat — living room edition</title>
<style>
* { box-sizing: border-box; }
html, body { margin: 0; width: 100%; height: 100%; overflow: hidden; }
body {
background: #b9a994;
color: #fff8eb;
font: 14px/1.4 system-ui, sans-serif;
user-select: none;
}
#room {
position: relative; width: 100%; height: 100%; overflow: hidden;
isolation: isolate; perspective: 1000px;
background: linear-gradient(#d8d0c2 0 60%, #9d8064 60%);
}
#room::after {
content: ""; position: absolute; inset: 0; z-index: 5; pointer-events: none;
opacity: .13; mix-blend-mode: multiply;
background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.24'/%3E%3C/svg%3E");
}
#room-art {
position: absolute; inset: -2%; width: 104%; height: 104%;
transform-origin: 50% 55%; transition: filter 1s ease;
}
.room-svg { width: 100%; height: 100%; display: block; }
#sunbeam {
position: absolute; z-index: 1; pointer-events: none; inset: -25% 30% 5% 4%;
background: linear-gradient(110deg, transparent 14%, rgba(255,232,174,.24) 45%, transparent 78%);
filter: blur(17px); transform: rotate(-4deg); opacity: .65;
}
#floor-shadow {
position: absolute; z-index: 2; left: 50%; bottom: 10.8%;
width: min(29vw, 300px); height: 36px; border-radius: 50%;
transform: translateX(-50%); background: rgba(35,25,17,.44);
filter: blur(13px); transition: width .4s, opacity .4s, filter .4s;
}
#cat-hit {
position: absolute; z-index: 3; left: 50%; bottom: 9.5%;
width: min(34vw, 350px); height: min(43vw, 418px);
min-width: 230px; min-height: 285px;
transform: translateX(-50%); cursor: pointer; perspective: 900px;
-webkit-tap-highlight-color: transparent;
}
#cat-shell {
position: absolute; inset: 0; transform-style: preserve-3d;
transform-origin: 50% 78%; will-change: transform, filter;
}
.cat-face {
position: absolute; inset: 0; width: 100%; height: 100%;
overflow: visible; backface-visibility: hidden;
filter: drop-shadow(0 7px 5px rgba(48,33,20,.14));
}
.cat-back { transform: rotateY(180deg); }
#cat-hit:focus-visible { outline: 2px solid white; outline-offset: 12px; border-radius: 50%; }
#cat-hit:hover #cat-shell { filter: drop-shadow(0 0 12px rgba(255,239,183,.3)); }
#stage-glow {
position: absolute; z-index: 2; inset: 0; pointer-events: none; opacity: 0;
background: radial-gradient(ellipse at 50% 54%, rgba(255,225,132,.22), transparent 53%);
transition: opacity .7s;
}
#orbiters { position: absolute; z-index: 4; inset: 0; pointer-events: none; }
.orb {
position: absolute; left: 50%; top: 48%; opacity: 0;
transform: translate(-50%,-50%) scale(.2); font-size: clamp(30px, 5vw, 62px);
filter: drop-shadow(0 8px 5px rgba(20,12,8,.24));
}
#status {
position: absolute; z-index: 8; left: 22px; bottom: 19px;
color: rgba(255,249,235,.78); text-shadow: 0 1px 5px #37291e;
letter-spacing: .03em; font-size: 12px;
}
#mute {
position: absolute; z-index: 10; top: 18px; right: 20px;
border: 1px solid rgba(255,255,255,.45); border-radius: 99px;
color: #fff8eb; background: rgba(39,31,25,.32); padding: 9px 13px;
font: inherit; cursor: pointer; backdrop-filter: blur(8px);
}
#mute:hover { background: rgba(39,31,25,.55); }
#hint {
position: absolute; z-index: 8; left: 50%; bottom: 20px; transform: translateX(-50%);
padding: 7px 12px; border-radius: 30px;
color: rgba(255,249,235,.82); background: rgba(39,31,25,.2);
font-size: 12px; letter-spacing: .04em; white-space: nowrap;
transition: opacity .5s;
}
.activated #hint { opacity: 0; }
.stage-1 #stage-glow { opacity: .12; }
.stage-2 #stage-glow { opacity: .26; }
.stage-3 #stage-glow { opacity: .44; }
.stage-4 #stage-glow { opacity: .75; }
.stage-1 #room-art { filter: saturate(1.02); }
.stage-2 #room-art { filter: saturate(1.14) hue-rotate(-4deg); }
.stage-3 #room-art { filter: saturate(1.3) hue-rotate(8deg); }
.stage-4 #room-art { filter: saturate(1.65) hue-rotate(-13deg) contrast(1.06); }
.stage-2 #floor-shadow { width: 210px; opacity: .62; filter: blur(17px); }
.stage-3 #floor-shadow { width: 120px; opacity: .34; filter: blur(23px); }
.stage-4 #floor-shadow { width: 65px; opacity: .18; filter: blur(28px); }
.stage-2 .orb { opacity: .7; }
.stage-3 .orb, .stage-4 .orb { opacity: 1; }
.stage-2 .orb { animation: orbit 4s linear infinite; }
.stage-3 .orb { animation: orbit 2.5s linear infinite; }
.stage-4 .orb { animation: orbit 1.35s linear infinite; }
@keyframes orbit {
0% { transform: translate(-50%,-50%) rotate(0deg) translateX(min(24vw,245px)) rotate(0deg) scale(1); }
100% { transform: translate(-50%,-50%) rotate(360deg) translateX(min(24vw,245px)) rotate(-360deg) scale(1); }
}
.stage-3 #room-art { animation: wobble 5s ease-in-out infinite; }
.stage-4 #room-art { animation: roomspin 16s ease-in-out infinite; }
@keyframes wobble { 0%,100% { transform: rotate(0) scale(1); } 50% { transform: rotate(1deg) scale(1.025); } }
@keyframes roomspin {
0%,100% { transform: rotate(0) scale(1); }
25% { transform: rotate(2deg) scale(1.06) translate(1%, -1%); }
50% { transform: rotate(-2deg) scale(1.08) translate(-1%, 1%); }
75% { transform: rotate(1deg) scale(1.04) translate(0, -1%); }
}
@media (max-width: 600px) {
#cat-hit { width: 68vw; height: 82vw; bottom: 10%; }
#floor-shadow { bottom: 10.5%; width: 44vw; }
}
@media (prefers-reduced-motion: reduce) {
.stage-3 #room-art, .stage-4 #room-art, .orb { animation-duration: 6s; }
}
</style>
</head>
<body>
<main id="room" aria-label="A living room with a cat">
<div id="room-art" aria-hidden="true">
<svg class="room-svg" viewBox="0 0 1000 650" preserveAspectRatio="xMidYMid slice" xmlns="http://www.w3.org/2000/svg">
<defs>
<linearGradient id="wall" x2="0" y2="1"><stop stop-color="#e8e0d3"/><stop offset="1" stop-color="#c9bca9"/></linearGradient>
<linearGradient id="floor" x2="0" y2="1"><stop stop-color="#b49775"/><stop offset="1" stop-color="#795a40"/></linearGradient>
<linearGradient id="window" x2="1" y2="1"><stop stop-color="#b8d3d5"/><stop offset=".45" stop-color="#e7e2ce"/><stop offset="1" stop-color="#9eb9b1"/></linearGradient>
<linearGradient id="sofa" x2="0" y2="1"><stop stop-color="#879087"/><stop offset="1" stop-color="#58635d"/></linearGradient>
<radialGradient id="lampglow"><stop stop-color="#fff2c8" stop-opacity=".7"/><stop offset="1" stop-color="#fff2c8" stop-opacity="0"/></radialGradient>
<filter id="soft"><feGaussianBlur stdDeviation="12"/></filter>
<filter id="grain"><feTurbulence type="fractalNoise" baseFrequency=".65" numOctaves="2" stitchTiles="stitch"/><feColorMatrix values="1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 .08 0"/></filter>
</defs>
<!-- plaster wall and warm corner shadows -->
<rect width="1000" height="650" fill="url(#wall)"/>
<path d="M0 0h1000v45H0z" fill="#f1eade" opacity=".4"/>
<path d="M0 0h54v430H0zM946 0h54v430h-54z" fill="#9c8872" opacity=".1"/>
<ellipse cx="250" cy="230" rx="320" ry="255" fill="#fff4d9" opacity=".23"/>
<!-- window -->
<rect x="92" y="64" width="300" height="242" rx="3" fill="#766c5d" opacity=".4"/>
<rect x="101" y="72" width="282" height="225" fill="url(#window)" stroke="#f4eee1" stroke-width="12"/>
<path d="M108 253c39-52 66-45 102-17 37-40 88-57 164-20v76H108z" fill="#718477" opacity=".55"/>
<path d="M108 263c70-26 144-17 270 5v24H108z" fill="#728a7d" opacity=".55"/>
<path d="M242 78v210M108 183h269" stroke="#f3eee3" stroke-width="9"/>
<path d="M79 67h328M82 304h324" stroke="#f4eee5" stroke-width="12" stroke-linecap="round"/>
<path d="M95 313h298l20 11H75z" fill="#887661"/>
<!-- sun patch -->
<path d="M110 308L404 308 663 535 167 535z" fill="#ffdf9f" opacity=".12"/>
<!-- framed picture -->
<rect x="568" y="75" width="154" height="118" fill="#8a765e" opacity=".18"/>
<rect x="577" y="68" width="146" height="116" fill="#f4eee2" stroke="#88775f" stroke-width="7"/>
<rect x="590" y="81" width="120" height="90" fill="#b5c0ad"/>
<path d="M590 153l40-43 24 23 20-34 36 54z" fill="#758371"/>
<circle cx="678" cy="101" r="12" fill="#e6c98c"/>
<!-- plant by the window -->
<path d="M70 407h90l-10 66H81z" fill="#a46f50"/>
<path d="M83 408h64" stroke="#d09b72" stroke-width="6"/>
<g fill="#596e50">
<path d="M113 407c-50-38-45-90-25-95 25 8 34 47 25 95z"/>
<path d="M115 408c-16-56 4-111 26-104 17 24 0 76-26 104z"/>
<path d="M112 405c-6-62 25-95 43-80 9 28-17 66-43 80z"/>
<path d="M112 409c-47-13-66-48-50-60 22 2 46 29 50 60z"/>
<path d="M114 411c1-44-29-76-44-63-8 23 19 52 44 63z"/>
</g>
<g stroke="#94a17d" stroke-width="2" opacity=".7"><path d="M112 410L89 321M113 410l25-85M112 410l34-73M112 410l-42-53"/></g>
<!-- couch -->
<ellipse cx="780" cy="447" rx="242" ry="37" fill="#514b41" opacity=".18" filter="url(#soft)"/>
<path d="M612 295q0-35 38-35h262q40 0 40 42v125H612z" fill="url(#sofa)"/>
<path d="M598 353q-18 0-18 24v93h474v-89q0-28-23-28z" fill="#68736b"/>
<path d="M601 369q9-20 27-20h413q21 0 24 22v77H601z" fill="#788279"/>
<path d="M605 373q12-16 32-16h105v111H605z" fill="#838b7e"/>
<path d="M756 357h126v111H756z" fill="#707a70"/>
<path d="M888 357h122q18 7 20 24v87H888z" fill="#68736b"/>
<path d="M610 425h416M743 362v103M875 362v103" stroke="#4e5a53" stroke-width="3" opacity=".45"/>
<path d="M625 468l-8 31m382-31 8 31" stroke="#544738" stroke-width="9" stroke-linecap="round"/>
<!-- sofa cushion -->
<path d="M791 329q12-13 28-2l40 29-38 49q-9 8-20 1l-40-29z" fill="#b77c5f"/>
<path d="M797 334l52 34" stroke="#d49b7a" stroke-width="3" opacity=".6"/>
<!-- floor -->
<path d="M0 421q500-26 1000 0v229H0z" fill="url(#floor)"/>
<path d="M0 423q500-26 1000 0" fill="none" stroke="#74634e" stroke-width="5" opacity=".45"/>
<g stroke="#5f4936" opacity=".29" fill="none">
<path d="M-20 476q510-18 1040 0M-20 535q510-12 1040 0M-20 599q510-8 1040 0"/>
<path d="M150 423l-60 227M335 423l-25 227M536 423l8 227M746 423l35 227M925 423l86 227"/>
</g>
<g stroke="#dfc09a" opacity=".2">
<path d="M-20 480q510-18 1040 0M-20 539q510-12 1040 0M-20 603q510-8 1040 0"/>
</g>
<!-- rug -->
<path d="M246 454q244-29 500 0l73 161q-283 35-644 0z" fill="#b9a184" opacity=".9"/>
<path d="M269 466q215-23 453 0l53 135q-260 26-558 0z" fill="none" stroke="#e3d2b8" stroke-width="3" opacity=".6"/>
<path d="M290 475q211-20 414 0l39 115q-238 22-493 0z" fill="none" stroke="#8e7961" stroke-width="2" opacity=".4"/>
<!-- side table and lamp -->
<path d="M848 273h106l-9 13H857z" fill="#785f46"/>
<path d="M861 286h8v89h-8zm73 0h8v89h-8z" fill="#6c533c"/>
<ellipse cx="892" cy="278" rx="75" ry="85" fill="url(#lampglow)"/>
<path d="M881 151h25l18 70h-61z" fill="#e1d2b4"/>
<path d="M877 221h34l8 9h-50z" fill="#8a765e"/>
<path d="M894 230v44" stroke="#79664f" stroke-width="5"/>
<ellipse cx="894" cy="274" rx="38" ry="6" fill="#765f46"/>
<rect x="868" y="245" width="54" height="29" rx="4" fill="#9c684f"/>
<!-- gentle vignette -->
<rect width="1000" height="650" filter="url(#grain)" opacity=".4"/>
<path d="M0 0h1000v650H0z" fill="none" stroke="#43392d" stroke-opacity=".16" stroke-width="28"/>
</svg>
</div>
<div id="sunbeam"></div>
<div id="stage-glow"></div>
<div id="floor-shadow"></div>
<div id="cat-hit" role="button" tabindex="0" aria-label="Click the cat to start the Oiia spin">
<div id="cat-shell">
<!-- front -->
<svg class="cat-face cat-front" viewBox="0 0 360 430" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
<defs>
<radialGradient id="fur" cx=".36" cy=".22" r=".8"><stop stop-color="#fff8e9"/><stop offset=".58" stop-color="#e7d7bb"/><stop offset="1" stop-color="#b49b78"/></radialGradient>
<radialGradient id="whitefur" cx=".45" cy=".25" r=".8"><stop stop-color="#fffefa"/><stop offset="1" stop-color="#e7dfd2"/></radialGradient>
<linearGradient id="ear" x2="0" y2="1"><stop stop-color="#ad7868"/><stop offset="1" stop-color="#d8a99a"/></linearGradient>
<radialGradient id="iris"><stop stop-color="#b9b263"/><stop offset=".7" stop-color="#788451"/><stop offset="1" stop-color="#384a39"/></radialGradient>
</defs>
<!-- tail -->
<path d="M225 322q92 11 71 76-12 34-61 19" fill="none" stroke="#c5ad8b" stroke-width="31" stroke-linecap="round"/>
<path d="M226 322q92 11 71 76-12 34-61 19" fill="none" stroke="#eadcc4" stroke-width="21" stroke-linecap="round"/>
<!-- body -->
<path d="M89 393q-6-55 10-111 18-61 77-69 69-8 99 53 23 48 5 129-2 17-19 18H108q-17-1-19-20z" fill="url(#fur)" stroke="#b9a487" stroke-width="2"/>
<path d="M111 386q-5-84 30-132 14-19 37-25-10 65-3 165z" fill="#f7f0e4" opacity=".88"/>
<path d="M227 239q50 29 49 95-2 45-12 64h-36q15-81-1-159z" fill="#d2bea0" opacity=".7"/>
<!-- chest bib -->
<path d="M143 272q37 20 75-3 24 32 19 111H124q-1-68 19-108z" fill="url(#whitefur)"/>
<!-- paws -->
<path d="M112 358q-9 25-5 46 2 12 38 12 26 0 29-10 3-18-7-48z" fill="url(#whitefur)" stroke="#c7b9a4" stroke-width="2"/>
<path d="M187 358q-7 26-3 47 2 12 37 12 27 0 30-11 2-17-7-47z" fill="url(#whitefur)" stroke="#c7b9a4" stroke-width="2"/>
<!-- head and ears -->
<path d="M90 116Q83 31 105 17q25 0 70 57 41-14 73 1 43-52 67-47 24 20 9 94 15 27 9 67-10 86-93 103-71 15-125-29-43-36-39-94 1-29 14-53z" fill="url(#fur)" stroke="#b49f80" stroke-width="2"/>
<path d="M104 34q-6 22 1 60l47-25q-31-34-48-35z" fill="url(#ear)"/>
<path d="M301 39q-21 7-43 39l48 21q5-38-5-60z" fill="url(#ear)"/>
<!-- forehead markings -->
<path d="M174 76q-15 19-12 43m31-48q-7 22-3 38m22-33q10 18 10 34" fill="none" stroke="#b99c76" stroke-width="8" stroke-linecap="round" opacity=".76"/>
<!-- cheeks -->
<path d="M104 163q22-30 61-12 10 23 1 53-31 22-62 0-12-18 0-41z" fill="#f7f0e5" opacity=".94"/>
<path d="M225 151q38-20 62 10 13 24-3 46-31 20-61-3-8-27 2-53z" fill="#f7f0e5" opacity=".94"/>
<!-- eyes -->
<ellipse cx="145" cy="139" rx="24" ry="31" fill="#fffdf7"/>
<ellipse cx="239" cy="139" rx="24" ry="31" fill="#fffdf7"/>
<ellipse cx="148" cy="141" rx="14" ry="22" fill="url(#iris)"/>
<ellipse cx="236" cy="141" rx="14" ry="22" fill="url(#iris)"/>
<ellipse cx="150" cy="143" rx="6.5" ry="18" fill="#202721"/>
<ellipse cx="234" cy="143" rx="6.5" ry="18" fill="#202721"/>
<circle cx="144" cy="132" r="5" fill="white" opacity=".95"/>
<circle cx="230" cy="132" r="5" fill="white" opacity=".95"/>
<path d="M119 106q24-17 48-2m48 0q23-15 47 3" fill="none" stroke="#a58e70" stroke-width="5" stroke-linecap="round" opacity=".65"/>
<!-- muzzle -->
<ellipse cx="167" cy="184" rx="28" ry="21" fill="#fffdf7"/>
<ellipse cx="216" cy="184" rx="28" ry="21" fill="#fffdf7"/>
<path d="M181 174q10-8 20 0 1 11-10 13-12-2-10-13z" fill="#b97976"/>
<path d="M191 187v10m0 0q-11 14-23 4m23-4q11 14 24 3" fill="none" stroke="#6d5148" stroke-width="3" stroke-linecap="round"/>
<!-- whiskers -->
<g fill="none" stroke="#8e806e" stroke-width="2" opacity=".8">
<path d="M154 188q-42-10-67-4m70 12q-43 3-67 19m120-26q42-13 70-9m-69 18q44 1 68 17"/>
</g>
<!-- fur strokes -->
<g fill="none" stroke="#fffaf0" stroke-width="2" opacity=".66" stroke-linecap="round">
<path d="M106 101l-8 21m16-17-7 25m184-26 7 23m-16-17 8 24"/>
<path d="M97 235l-9 13m20 115-8 16m161-16 9 16m-10-76 10 13"/>
<path d="M129 286q-8 19-8 36m107-29q11 18 12 34M139 397l-2 12m64-11 2 12"/>
<path d="M119 160l-10 9m155-10 10 8m-121 55 7 7m48-2-5 9"/>
</g>
<g fill="none" stroke="#b49a76" stroke-width="2" opacity=".35">
<path d="M122 277l-8 21m27-32-8 19m116 0 8 18m-27-37 7 20"/>
<path d="M105 347l-5 21m156-21 7 22m-99 35v11m27-10v11"/>
</g>
</svg>
<!-- back side for a real-feeling full turn -->
<svg class="cat-face cat-back" viewBox="0 0 360 430" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
<defs><radialGradient id="backfur" cx=".38" cy=".2" r=".9"><stop stop-color="#fff7e8"/><stop offset=".7" stop-color="#dbc9a9"/><stop offset="1" stop-color="#ad9270"/></radialGradient></defs>
<path d="M225 322q92 11 71 76-12 34-61 19" fill="none" stroke="#c5ad8b" stroke-width="31" stroke-linecap="round"/>
<path d="M226 322q92 11 71 76-12 34-61 19" fill="none" stroke="#eadcc4" stroke-width="21" stroke-linecap="round"/>
<path d="M89 393q-6-55 10-111 18-61 77-69 69-8 99 53 23 48 5 129-2 17-19 18H108q-17-1-19-20z" fill="url(#backfur)" stroke="#b9a487" stroke-width="2"/>
<path d="M111 386q-5-84 30-132 14-19 37-25-10 65-3 165z" fill="#f7f0e4" opacity=".7"/>
<path d="M227 242q45 22 49 88-2 45-12 64h-36q15-81-1-152z" fill="#c9b28f" opacity=".6"/>
<path d="M142 230q29 23 77 2m-91 31q34 29 92 8m-98 31q40 30 103 11m-99 26q42 26 99 12" fill="none" stroke="#b69770" stroke-width="8" opacity=".65" stroke-linecap="round"/>
<path d="M143 272q37 20 75-3 24 32 19 111H124q-1-68 19-108z" fill="#f7f0e4" opacity=".9"/>
<path d="M112 358q-9 25-5 46 2 12 38 12 26 0 29-10 3-18-7-48zm75 0q-7 26-3 47 2 12 37 12 27 0 30-11 2-17-7-47z" fill="#eee5d6" stroke="#c7b9a4" stroke-width="2"/>
<path d="M104 34q-6 22 1 60l47-25q-31-34-48-35zm197 5q-21 7-43 39l48 21q5-38-5-60z" fill="#d5a697"/>
<g fill="none" stroke="#fffaf0" stroke-width="2" opacity=".65">
<path d="M106 101l-8 21m16-17-7 25m184-26 7 23m-16-17 8 24"/>
<path d="M97 235l-9 13m20 115-8 16m161-16 9 16m-10-76 10 13"/>
<path d="M129 286q-8 19-8 36m107-29q11 18 12 34M139 397l-2 12m64-11 2 12"/>
</g>
</svg>
</div>
</div>
<div id="orbiters" aria-hidden="true">
<span class="orb" style="--delay:0s">🐟</span>
<span class="orb" style="--delay:-.5s; margin-left:10px; margin-top:15px">🛋️</span>
<span class="orb" style="--delay:-1s; margin-left:-8px; margin-top:-8px">🪴</span>
<span class="orb" style="--delay:-1.5s; margin-left:14px; margin-top:-12px">🫖</span>
</div>
<div id="status" aria-live="polite">A very ordinary afternoon.</div>
<div id="hint">click the cat</div>
<button id="mute" type="button" aria-pressed="false">♪ sound on</button>
</main>
<script>
(() => {
const room = document.getElementById('room');
const hit = document.getElementById('cat-hit');
const shell = document.getElementById('cat-shell');
const shadow = document.getElementById('floor-shadow');
const status = document.getElementById('status');
const mute = document.getElementById('mute');
let stage = 0, angle = 0, speed = 0, targetSpeed = 0, lift = 0, targetLift = 0;
let last = performance.now(), nextVoiceAngle = 0, muted = false;
let audio, master;
const captions = [
"A very ordinary afternoon.",
"oiia. The cat has noticed you.",
"The rug is no longer in charge.",
"The living room has entered the spin.",
"THE WHOLE HOUSE IS A CAT TOY."
];
function initAudio() {
if (audio) { if (audio.state === 'suspended') audio.resume(); return; }
const AC = window.AudioContext || window.webkitAudioContext;
if (!AC) return;
audio = new AC();
master = audio.createGain();
master.gain.value = muted ? 0 : .48;
master.connect(audio.destination);
}
// A tiny formant synth: voiced sawtooth plus moving vowel resonances.
function sayVowel(vowel, spinSpeed) {
if (!audio || muted) return;
const now = audio.currentTime;
const dur = Math.max(.105, Math.min(.28, .58 / (1 + spinSpeed * .1)));
const fundamental = Math.min(490, 145 + spinSpeed * 10 + stage * 22);
const vowels = {
o: [520, 900, 1250], i: [300, 2250, 3000],
a: [800, 1250, 2750]
};
const formants = vowels[vowel] || vowels.i;
const osc = audio.createOscillator();
osc.type = 'sawtooth';
osc.frequency.setValueAtTime(fundamental * .88, now);
osc.frequency.exponentialRampToValueAtTime(fundamental, now + dur * .65);
const voice = audio.createGain();
voice.gain.setValueAtTime(.0001, now);
voice.gain.linearRampToValueAtTime(.18, now + .018);
voice.gain.setValueAtTime(.14, now + dur * .55);
voice.gain.exponentialRampToValueAtTime(.0001, now + dur);
osc.connect(voice);
formants.forEach((f, i) => {
const filter = audio.createBiquadFilter();
filter.type = 'bandpass'; filter.frequency.value = f;
filter.Q.value = i === 0 ? 1.3 : 2.1;
const level = audio.createGain();
level.gain.value = [1, .58, .2][i];
voice.connect(filter); filter.connect(level); level.connect(master);
});
osc.start(now); osc.stop(now + dur + .015);
}
function activate() {
initAudio();
stage = Math.min(4, stage + 1);
room.className = 'stage-' + stage + ' activated';
status.textContent = captions[stage];
const speeds = [0, 5, 9, 14, 21];
const heights = [0, 24, 100, 165, 205];
targetSpeed = speeds[stage];
targetLift = heights[stage];
// Each further click at the top adds a little more ridiculous momentum.
if (stage === 4 && speed > 20) targetSpeed = Math.min(31, speed + 3.2);
sayVowel('o', Math.max(speed, 3));
nextVoiceAngle = angle + .6;
}
hit.addEventListener('click', activate);
hit.addEventListener('keydown', e => {
if (e.key === 'Enter' || e.key === ' ') { e.preventDefault(); activate(); }
});
mute.addEventListener('click', () => {
muted = !muted;
mute.textContent = muted ? '♪ sound off' : '♪ sound on';
mute.setAttribute('aria-pressed', String(muted));
if (audio && master) {
master.gain.setTargetAtTime(muted ? 0 : .48, audio.currentTime, .035);
}
});
const phrase = 'oiiaiooooiai';
let syllable = 1;
function frame(now) {
const dt = Math.min(.04, (now - last) / 1000);
last = now;
speed += (targetSpeed - speed) * (1 - Math.exp(-dt * 1.5));
lift += (targetLift - lift) * (1 - Math.exp(-dt * 1.35));
angle += speed * dt;
if (stage > 0 && audio && !muted && angle >= nextVoiceAngle) {
sayVowel(phrase[syllable % phrase.length], speed);
syllable++;
nextVoiceAngle += Math.max(.38, .82 - stage * .07);
}
const bob = stage ? Math.sin(now * .004 + angle * .23) * (stage * 3.5) : 0;
const yaw = angle * 180 / Math.PI;
const blur = Math.min(7, Math.max(0, (speed - 8) * .27));
const scale = 1 + Math.min(.16, lift / 1500);
shell.style.transform =
`translate3d(0,${-lift + bob}px,0) rotateY(${yaw}deg) scale(${scale})`;
shell.style.filter = `blur(${blur}px) drop-shadow(0 9px 5px rgba(48,33,20,.14))`;
shadow.style.transform = `translateX(-50%) scale(${1 - Math.min(.7, lift/360)})`;
requestAnimationFrame(frame);
}
requestAnimationFrame(frame);
})();
</script>
</body>
</html>
The notes
- The opening uses a layered SVG room, a sunlit window, floorboard perspective, a rug, soft shadows, and a subtle grain overlay. The cat rests against the floor shadow; the realism gives out at the hand-drawn SVG cat and the room’s deliberately composed details.
- The cat has a cream coat, white muzzle and chest, wide green eyes, forehead markings, whiskers, and a matching illustrated back side, so it reads as Oiia Cat rather than an arbitrary spinning shape.
- Stage one winds up; stage two lifts the cat and starts the room’s orbit; stage three sends the cat higher while the room wobbles; stage four turns the living room into a floating cat-toy cosmos, with orbiting furniture, a plant, a teapot, and a fish. Further clicks add momentum.
- Web Audio synthesizes a voiced sawtooth through vowel-shaped bandpass resonances, cycling through “oiiaiooooiai.” Syllables are triggered by spin angle, while pitch and repetition rate rise with spin speed. Audio begins only after a click, and the button mutes it.
- With more time, I’d replace the illustrated cat and room with a more convincing, finely textured render while keeping the same lightweight, self-contained setup.
Attachments
openai/gpt-6-luna-pro — page