Install
That writes one file:compositions/components/radial-surround.html.
Paste it into your composition
Opencompositions/components/radial-surround.html and copy what is inside into your own composition.
A component has no size or duration of its own. It takes both from the composition
you paste it into.
Variables
Every one of these has a default, so the piece works untouched. Set the ones you want to change on the element:| Variable | Default | Accepts | What it does |
|---|---|---|---|
center_label | Your team | string | Label on the default center token card. |
chips | Docs,Tickets,Dashboards,Inbox,Chat,Sheets | string | Comma-separated chip labels that surround the center (up to 12). |
close_in | true | boolean | Converge the ring inward with a subtle edge dim after assembly. The center never moves. |
cues | “ | string | Comma-separated per-chip entrance times in seconds. Blank entries use the default cascade. |
accent | green | green, blue, violet | Accent token family used by the center card tint. |
exit | none | none, fade, up | How the surrounded stage leaves the frame. Default none: the crowded hold ends the film. |
data-variable-values on the element that mounts it. These are the
defaults, so this behaves exactly like the preview above until you change one:
<div
data-composition-id="radial-surround"
data-composition-src="compositions/components/radial-surround.html"
data-variable-values='{"center_label":"Your team","chips":"Docs,Tickets,Dashboards,Inbox,Chat,Sheets","close_in":true,"cues":"","accent":"green","exit":"none"}'
></div>
Source
radial-surround.html
radial-surround.html
<!doctype html>
<!--
radial-surround: HyperFrames video primitive (problem setup)
Labeled hairline chips assemble around a centered subject on an elliptical
ring. Positions are baked exactly once via cos/sin before the timeline is
registered, so every seek lands on the same geometry. Chips enter with
staggered smooth settles (scale + fade, power3.out, no overshoot). With
close_in enabled the chips then converge inward toward the subject while a
subtle edge vignette dims the stage: the center NEVER moves. The subject is
surrounded, not zoomed.
Variables (declared in data-composition-variables below):
- center_label (string, default "Your team"): label on the default token
card. Ignored for layout when the center slot carries custom children.
- chips (string, default "Docs,Tickets,Dashboards,Inbox,Chat,Sheets"):
comma list of chip labels; up to 12 render, extras are dropped.
- close_in (boolean, default true): converge the ring inward with the
edge dim after assembly. false holds the wide ring instead.
- cues (string, default ""): comma-separated per-chip entrance times in
seconds relative to mount start. Blank or invalid entries fall back to
that chip's default cascade slot (~0.30s gap). Values are clamped so
every chip lands before the close-in (or the exit) begins.
- accent (green | blue | violet, default green): center card tint.
green routes to --brand, blue to --accent, violet to --accent-2.
- exit (none | fade | up, default none): frame roots own transitions;
the default crowded hold ends the film.
Envelope, fixed IN with elastic HOLD (never gsap.timeScale()):
IN = center settle + chip cascade (+ close-in and vignette when
close_in is true); at defaults the converge lands at 4.50s.
HOLD = dead still, elastic: everything after IN until OUT (or D).
OUT = 0 when exit is "none"; else up to 0.45s fade / fade-up.
Entrance starts compress together when D is too short for the cascade;
the close-in window is reserved first so the converge always completes.
Slot: the runtime clones only this template. A fork that wants a custom
subject places its own children inside the [data-slot="center"] element;
when that element already has children the default token card is not
generated (chips, cues, close_in, and exit still apply, and the center
still never moves).
Mount contract: elastic root, no data-width/data-height, styled via #root
only, container-type: size, one paused timeline registered under the
literal "radial-surround" key. Deterministic and seek-safe: fromTo
entrances, no CSS transitions, no Date.now, no randomness.
-->
<html
lang="en"
data-composition-id="radial-surround"
data-composition-duration="5"
data-composition-variables='[
{ "id": "center_label", "type": "string", "role": "content", "label": "Center label", "description": "Label on the default center token card.", "default": "Your team" },
{ "id": "chips", "type": "string", "role": "content", "label": "Chips", "description": "Comma-separated chip labels that surround the center (up to 12).", "default": "Docs,Tickets,Dashboards,Inbox,Chat,Sheets" },
{ "id": "close_in", "type": "boolean", "role": "timing", "label": "Close in", "description": "Converge the ring inward with a subtle edge dim after assembly. The center never moves.", "default": true },
{ "id": "cues", "type": "string", "role": "timing", "label": "Cues", "description": "Comma-separated per-chip entrance times in seconds. Blank entries use the default cascade.", "default": "" },
{ "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Accent token family used by the center card tint.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
{ "id": "exit", "type": "enum", "role": "timing", "label": "Exit", "description": "How the surrounded stage leaves the frame. Default none: the crowded hold ends the film.", "default": "none", "options": [{ "value": "none", "label": "None" }, { "value": "fade", "label": "Fade" }, { "value": "up", "label": "Up" }] }
]'
>
<head>
<meta charset="UTF-8" />
<title>Radial Surround</title>
</head>
<body>
<template>
<div id="root" data-composition-id="radial-surround" data-duration="5" data-fps="30">
<style>
*,
*::before,
*::after {
box-sizing: border-box;
}
#root {
position: absolute;
inset: 0;
overflow: hidden;
container-type: size;
isolation: isolate;
background: var(--bg, transparent);
color: var(--fg, #f8fafc);
font-family: var(--font-mono, ui-monospace, "SF Mono", Menlo, Consolas, monospace);
pointer-events: none;
}
.rs-clip {
position: absolute;
inset: 0;
overflow: hidden;
}
.rs-stage {
position: absolute;
inset: 0;
will-change: transform, opacity;
}
.rs-center-layer {
position: absolute;
inset: 0;
display: grid;
place-items: center;
}
.rs-center {
display: grid;
place-items: center;
will-change: transform, opacity;
}
.rs-center > img,
.rs-center > video {
max-width: 34cqw;
max-height: 30cqh;
object-fit: cover;
border-radius: var(--radius, 2.2cqmin);
}
.rs-card {
width: 28cqw;
min-height: 22cqh;
padding: var(--space-2, 2.2cqmin);
border: 0.16cqmin solid color-mix(in srgb, var(--rs-accent) 46%, var(--border, #475569));
border-radius: var(--radius, 2.2cqmin);
background: color-mix(in srgb, var(--surface, #131a24) 94%, var(--rs-accent));
box-shadow: 0 3cqh 9cqh color-mix(in srgb, var(--bg, #000000) 40%, transparent);
}
.rs-card-label {
overflow: hidden;
color: var(--fg, #f8fafc);
font-family: var(
--font-display,
var(--font-body, ui-sans-serif, system-ui, sans-serif)
);
font-size: var(--rs-center-font, 4cqmin);
font-weight: 600;
line-height: 1.15;
letter-spacing: 0.04em;
text-align: center;
white-space: nowrap;
}
.rs-ring {
position: absolute;
inset: 0;
}
/* Positioning wrapper: the baked ring offsets live in the --rs-ox
and --rs-oy custom properties (plain cq values) and the close-in
tweens THOSE, never x/y or a GSAP-written calc() string. GSAP
misconverts vertical cq units to px mid-tween when it has to
re-init a layout property under a seek, so the calc stays in the
stylesheet and only the var strings interpolate; the inner
chip's unitless scale and opacity are the only transforms. */
.rs-pos {
position: absolute;
top: calc(50% + var(--rs-oy, 0cqh));
left: calc(50% + var(--rs-ox, 0cqw));
width: max-content;
transform: translate(-50%, -50%);
will-change: top, left;
}
.rs-chip {
padding: 1.15cqmin 2.1cqmin;
border: 0.14cqmin solid var(--border, #475569);
border-radius: 0.6cqmin;
background: var(--surface, #131a24);
color: var(--fg, #f8fafc);
font-size: 2.1cqmin;
font-weight: 500;
line-height: 1;
letter-spacing: 0.16em;
text-transform: uppercase;
white-space: nowrap;
transform-origin: 50% 50%;
will-change: transform, opacity;
}
/* Close-in edge dim: very subtle, content stays legible. */
.rs-vignette {
position: absolute;
inset: 0;
background: radial-gradient(
ellipse at center,
transparent 60%,
color-mix(in srgb, var(--bg, #05070c) 34%, transparent) 100%
);
opacity: 0;
pointer-events: none;
}
</style>
<div
id="radial-surround-clip"
class="rs-clip clip"
data-start="0"
data-duration="5"
data-track-index="0"
>
<div class="rs-stage" role="img">
<div class="rs-center-layer">
<div class="rs-center" data-slot="center"></div>
</div>
<div class="rs-ring" aria-hidden="true"></div>
<div class="rs-vignette"></div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<script>
(function () {
"use strict";
// Literal id, never read off the DOM: the flattening step strips
// data-composition-id from the mounted root (see toggle-flip).
var compositionId = "radial-surround";
var root = document.getElementById("root");
var stage = root.querySelector(".rs-stage");
var center = root.querySelector('[data-slot="center"]');
var ring = root.querySelector(".rs-ring");
var vignette = root.querySelector(".rs-vignette");
var vars =
window.__hyperframes && window.__hyperframes.getVariables
? window.__hyperframes.getVariables()
: {};
var centerLabel =
vars.center_label == null || String(vars.center_label).trim() === ""
? "Your team"
: String(vars.center_label).trim();
var chipsValue =
vars.chips == null || String(vars.chips).trim() === ""
? "Docs,Tickets,Dashboards,Inbox,Chat,Sheets"
: String(vars.chips);
var labels = chipsValue
.split(",")
.map(function (token) {
return token.trim();
})
.filter(function (token) {
return token !== "";
})
.slice(0, 12);
if (labels.length === 0)
labels = ["Docs", "Tickets", "Dashboards", "Inbox", "Chat", "Sheets"];
var closeIn = !(vars.close_in === false || vars.close_in === "false");
var exit = vars.exit === "fade" || vars.exit === "up" ? vars.exit : "none";
// Each enum choice routes to a DIFFERENT contract token so the
// variable stays meaningful under a theme.
var accentColors = {
green: "var(--brand, #71f5a7)",
blue: "var(--accent, #61a8ff)",
violet: "var(--accent-2, #c5a3ff)",
};
var accent = Object.prototype.hasOwnProperty.call(accentColors, vars.accent)
? vars.accent
: "green";
root.style.setProperty("--rs-accent", accentColors[accent]);
// Slot: a fork may author its own subject inside
// [data-slot="center"]; then the default token card is skipped.
if (center.children.length === 0) {
center.classList.add("rs-card");
var label = document.createElement("span");
label.className = "rs-card-label";
label.textContent = centerLabel;
center.appendChild(label);
}
stage.setAttribute("aria-label", centerLabel + ": " + labels.join(", "));
// Deterministic center-label fitting inside the 28cqw card.
var chars = Array.from(centerLabel).length;
var fontCqw = Math.min(3.4, 23 / (Math.max(1, chars) * 0.62));
root.style.setProperty("--rs-center-font", "min(" + fontCqw.toFixed(3) + "cqw, 6cqh)");
/* Elliptical ring, baked once (deterministic). FAR is the wide
assembly ring; NEAR is the close-in ring, pressing corner chips
up against the 28cqw center card so the crowding reads (chips
paint above the card). Angles alternate sides from the top so
consecutive entries pop on opposite compass points. */
var FAR_RX = 30; /* cqw */
var FAR_RY = 31; /* cqh */
var NEAR_RX = 20;
var NEAR_RY = 23;
var count = labels.length;
var step = 360 / count;
function ringPosition(index, rx, ry) {
var degrees = -90 + Math.ceil(index / 2) * step * (index % 2 === 1 ? 1 : -1);
var a = (degrees * Math.PI) / 180;
return {
ox: (Math.cos(a) * rx).toFixed(3) + "cqw",
oy: (Math.sin(a) * ry).toFixed(3) + "cqh",
};
}
var positions = [];
var chips = labels.map(function (text, index) {
var pos = document.createElement("div");
pos.className = "rs-pos";
var far = ringPosition(index, FAR_RX, FAR_RY);
pos.style.setProperty("--rs-ox", far.ox);
pos.style.setProperty("--rs-oy", far.oy);
var chip = document.createElement("div");
chip.className = "rs-chip";
chip.textContent = text;
pos.appendChild(chip);
ring.appendChild(pos);
positions.push(pos);
return chip;
});
// RETIME RANGE: fixed IN cascade (+ close-in), elastic still HOLD,
// optional OUT. The close-in window is reserved off the top so the
// converge always completes inside the clip.
var CENTER_AT = 0.05;
var BASE_START = 0.9;
var GAP = 0.3;
var ENTRY = 0.55;
var CLOSE_DUR = 0.75;
var CLOSE_STAG = 0.09;
var BREATH = 0.35;
var OUT_BASE = 0.45;
var duration = Math.max(0.001, parseFloat(root.dataset.duration || "5"));
var OUT = exit === "none" ? 0 : Math.min(OUT_BASE, duration * 0.2);
var avail = duration - OUT;
var closeSpan = closeIn ? (count - 1) * CLOSE_STAG + CLOSE_DUR : 0;
var latestStart = Math.max(0, avail - ENTRY - closeSpan);
// Compress the cascade together when the duration cannot fit it.
var gap =
count > 1 ? Math.min(GAP, Math.max(0, latestStart - BASE_START) / (count - 1)) : GAP;
var cueList = String(vars.cues == null ? "" : vars.cues).split(",");
var starts = chips.map(function (chip, index) {
var cue = Number((cueList[index] || "").trim());
var hasCue = (cueList[index] || "").trim() !== "" && Number.isFinite(cue);
var start = hasCue ? cue : Math.min(BASE_START, latestStart) + gap * index;
return Math.max(0, Math.min(start, latestStart));
});
var tl = gsap.timeline({ paused: true });
// Center seats first: gentle fade + subtle scale settle. After
// this the center NEVER moves again (surrounded, not zoomed).
gsap.set(center, { opacity: 0, scale: 0.94 });
tl.fromTo(
center,
{ opacity: 0, scale: 0.94 },
{
opacity: 1,
scale: 1,
duration: Math.min(0.7, Math.max(0.2, avail * 0.25)),
ease: "power3.out",
},
Math.min(CENTER_AT, latestStart),
);
// IN: chips assemble on the FAR ring in a measured stagger.
// Explicit both-endpoints state so any seek is exact.
chips.forEach(function (chip, index) {
gsap.set(chip, { scale: 0, opacity: 0 });
tl.fromTo(
chip,
{ scale: 0, opacity: 0 },
{ scale: 1, opacity: 1, duration: ENTRY, ease: "power3.out" },
starts[index],
);
});
// Close-in: chips converge from all compass points toward the
// subject while the edges dim slightly. The center holds still.
if (closeIn) {
var maxEntryEnd =
starts.reduce(function (max, start) {
return Math.max(max, start);
}, 0) + ENTRY;
var closeStart = Math.max(
maxEntryEnd,
Math.min(maxEntryEnd + BREATH, avail - closeSpan),
);
positions.forEach(function (pos, index) {
var far = ringPosition(index, FAR_RX, FAR_RY);
var near = ringPosition(index, NEAR_RX, NEAR_RY);
tl.fromTo(
pos,
{ "--rs-ox": far.ox, "--rs-oy": far.oy },
{
"--rs-ox": near.ox,
"--rs-oy": near.oy,
duration: CLOSE_DUR,
ease: "power2.inOut",
},
closeStart + index * CLOSE_STAG,
);
});
gsap.set(vignette, { opacity: 0 });
tl.fromTo(
vignette,
{ opacity: 0 },
{
opacity: 1,
duration: Math.min(0.9, Math.max(0.2, closeSpan)),
ease: "power1.inOut",
},
closeStart + 0.05,
);
}
// HOLD: intentionally still. Crowded, quiet, nothing floats.
// OUT: the whole surrounded stage leaves together.
if (exit !== "none") {
var OUT_START = duration - OUT;
tl.to(stage, { opacity: 0, duration: OUT, ease: "power2.in" }, OUT_START);
if (exit === "up") {
// yPercent, not a cq-unit y: percent transforms seek exactly.
tl.to(stage, { yPercent: -4, duration: OUT, ease: "power2.in" }, OUT_START);
}
}
tl.seek(0);
window.__timelines = window.__timelines || {};
window.__timelines[compositionId] = tl;
})();
</script>
</div>
</template>
</body>
</html>
motion-primitive problem-setup radial ring surround converge.