> ## Documentation Index
> Fetch the complete documentation index at: https://hyperframes.heygen.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Aurora Drift

> Three soft accent-derived aurora fields drift in an exact ambient loop over a deep base and faint vignette.

export const InstallCommand = ({command}) => {
  const [copied, setCopied] = React.useState(false);
  const copy = async () => {
    try {
      if (navigator.clipboard && window.isSecureContext) {
        await navigator.clipboard.writeText(command);
      } else {
        const previous = document.activeElement;
        const scratch = document.createElement("textarea");
        scratch.value = command;
        scratch.setAttribute("readonly", "");
        scratch.style.position = "fixed";
        scratch.style.opacity = "0";
        document.body.appendChild(scratch);
        scratch.select();
        document.execCommand("copy");
        document.body.removeChild(scratch);
        previous?.focus?.();
      }
      setCopied(true);
      setTimeout(() => setCopied(false), 2000);
    } catch {}
  };
  return <div className="hf-install-command not-prose my-4 flex items-stretch overflow-hidden rounded-xl border border-zinc-200 bg-zinc-50 dark:border-zinc-800 dark:bg-zinc-900">
      <code className="flex-1 overflow-x-auto whitespace-nowrap border-r border-zinc-200 px-4 py-3 font-mono text-sm text-zinc-800 dark:border-zinc-800 dark:text-zinc-100">
        {command}
      </code>
      <button type="button" onClick={copy} data-copied={copied ? "true" : "false"} aria-label={`Copy ${command} to the clipboard`} className="hf-install-copy">
        <svg className="hf-install-copy-clipboard" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 18 18" fill="none" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
          <path d="M14.25 5.25H7.25C6.14543 5.25 5.25 6.14543 5.25 7.25V14.25C5.25 15.3546 6.14543 16.25 7.25 16.25H14.25C15.3546 16.25 16.25 15.3546 16.25 14.25V7.25C16.25 6.14543 15.3546 5.25 14.25 5.25Z" />
          <path d="M2.80103 11.998L1.77203 5.07397C1.61003 3.98097 2.36403 2.96397 3.45603 2.80197L10.38 1.77297C11.313 1.63397 12.19 2.16297 12.528 3.00097" />
        </svg>
        <svg className="hf-install-copy-check" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 18 18" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true">
          <path d="M2.75 9.5L6.5 13.25L15.25 4.5" />
        </svg>
      </button>
      <span className="hf-install-copy-status" role="status" aria-live="polite">
        {copied ? "Copied" : ""}
      </span>
    </div>;
};

<iframe className="w-full aspect-video rounded-xl border-0 bg-zinc-100 dark:bg-zinc-800" title="aurora-drift preview" loading="lazy" srcDoc={`<!doctype html><html><head><meta charset="utf-8"><style>html,body{margin:0;height:100%;overflow:hidden;background:transparent}hyperframes-player{display:block;width:100%;height:100%}</style><script src="https://cdn.jsdelivr.net/npm/@hyperframes/player@0.7/dist/hyperframes-player.global.js"><\/script></head><body><script>fetch("/public/catalog/components/aurora-drift.json").then(function(r){return r.json()}).then(function(d){var p=document.createElement("hyperframes-player");p.setAttribute("srcdoc",d.html);p.setAttribute("controls","");p.setAttribute("autoplay","");p.setAttribute("loop","");p.setAttribute("muted","");p.setAttribute("poster","https://static.heygen.ai/hyperframes-oss/docs/images/catalog/components/aurora-drift.png");document.body.appendChild(p)});<\/script></body></html>`} />

## Install

<InstallCommand command="npx hyperframes add aurora-drift" />

That writes one file: `compositions/components/aurora-drift.html`.

## Paste it into your composition

Open `compositions/components/aurora-drift.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                                        |
| -------- | ------- | ------------------------- | --------------------------------------------------- |
| `accent` | `green` | `green`, `blue`, `violet` | Accent token family used to derive the aurora hues. |
| `mood`   | `deep`  | `deep`, `bright`          | Base luminance and aurora field strength.           |

Set them with `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:

```html wrap theme={null}
<div
  data-composition-id="aurora-drift"
  data-composition-src="compositions/components/aurora-drift.html"
  data-variable-values='{"accent":"green","mood":"deep"}'
></div>
```

## Source

<Accordion title={`aurora-drift.html`}>
  ```html theme={null}
  <!doctype html>
  <!--
    aurora-drift: HyperFrames video primitive (backgrounds / ambient)

    Concept: three oversized, softly blurred accent-derived fields drift over
    a deep base beneath a faint vignette. The motion stays slow and restrained,
    giving a scene color and depth without competing with foreground content.

    Variables:
      - accent (green | blue | violet, default green): selects the source token
        from which the three related aurora hues are mixed.
      - mood (deep | bright, default deep): controls base luminance and field
        strength while preserving the same motion.

    Envelope: IN = 0, HOLD = the full elastic duration, OUT = 0. The phase proxy
    advances through exactly one whole sine cycle during HOLD. A longer mount
    stretches only that ambient cycle.

    Loop invariant: phase 2 * PI is normalized to phase 0 before any transform
    is calculated, so every blob has exactly the same pose at t=0 and t=duration.

    Sound: none.

    Mount contract: the runtime clones only this template. #root fills the host
    box, establishes the container query basis, has no data-width or data-height,
    and registers one paused timeline under the hardcoded aurora-drift id.
  -->
  <html
    lang="en"
    data-composition-id="aurora-drift"
    data-composition-duration="4"
    data-composition-variables='[
      { "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Accent token family used to derive the aurora hues.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
      { "id": "mood", "type": "enum", "role": "style", "label": "Mood", "description": "Base luminance and aurora field strength.", "default": "deep", "options": [{ "value": "deep", "label": "Deep" }, { "value": "bright", "label": "Bright" }] }
    ]'
  >
    <head>
      <meta charset="UTF-8" />
      <title>Aurora Drift</title>
    </head>
    <body>
      <template>
        <div id="root" data-composition-id="aurora-drift" data-duration="4" data-fps="30">
          <style>
            *,
            *::before,
            *::after {
              box-sizing: border-box;
            }

            #root {
              position: absolute;
              inset: 0;
              overflow: hidden;
              container-type: size;
              isolation: isolate;
              pointer-events: none;
            }

            .ad-clip,
            .ad-base,
            .ad-vignette {
              position: absolute;
              inset: 0;
            }

            .ad-clip {
              overflow: hidden;
            }

            .ad-base {
              background:
                radial-gradient(
                  ellipse at 50% 42%,
                  color-mix(in srgb, var(--ad-color) 8%, var(--ad-base)) 0%,
                  var(--ad-base) 68%
                ),
                var(--ad-base);
            }

            .ad-blob {
              --ad-blob-opacity: 1;
              position: absolute;
              display: block;
              border-radius: 50%;
              filter: blur(12cqmin) saturate(0.84) opacity(var(--ad-blob-opacity));
              mix-blend-mode: screen;
              opacity: var(--ad-strength);
              will-change: transform;
            }

            .ad-blob-a {
              width: 76cqw;
              height: 72cqh;
              left: -18cqw;
              top: -22cqh;
              background: radial-gradient(
                ellipse at center,
                color-mix(in srgb, var(--ad-color) 88%, white) 0%,
                color-mix(in srgb, var(--ad-color) 42%, transparent) 48%,
                transparent 76%
              );
            }

            .ad-blob-b {
              width: 84cqw;
              height: 78cqh;
              right: -28cqw;
              top: -2cqh;
              --ad-blob-opacity: 0.82;
              background: radial-gradient(
                ellipse at center,
                color-mix(in srgb, var(--ad-color) 72%, var(--accent, #38bdf8)) 0%,
                color-mix(in srgb, var(--ad-color) 36%, transparent) 52%,
                transparent 78%
              );
            }

            .ad-blob-c {
              width: 72cqw;
              height: 74cqh;
              left: 18cqw;
              bottom: -34cqh;
              --ad-blob-opacity: 0.68;
              background: radial-gradient(
                ellipse at center,
                color-mix(in srgb, var(--ad-color) 72%, var(--accent-2, #a78bfa)) 0%,
                color-mix(in srgb, var(--ad-color) 32%, transparent) 50%,
                transparent 76%
              );
            }

            .ad-vignette {
              background: radial-gradient(
                ellipse at center,
                transparent 35%,
                rgb(0 0 0 / var(--ad-vignette)) 100%
              );
            }
          </style>

          <div
            id="aurora-drift-clip"
            class="ad-clip clip"
            data-start="0"
            data-duration="4"
            data-track-index="0"
          >
            <div class="ad-base"></div>
            <div class="ad-blob ad-blob-a"></div>
            <div class="ad-blob ad-blob-b"></div>
            <div class="ad-blob ad-blob-c"></div>
            <div class="ad-vignette"></div>
          </div>

          <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
          <script>
            (function () {
              "use strict";

              var root = document.getElementById("root");
              var vars =
                window.__hyperframes && window.__hyperframes.getVariables
                  ? window.__hyperframes.getVariables()
                  : {};

              // Invalid enum overrides return to their declared defaults.
              var accentTokens = {
                green: "var(--brand, #34d399)",
                blue: "var(--accent, #38bdf8)",
                violet: "var(--accent-2, #a78bfa)",
              };
              var moodStyles = {
                deep: { base: "#050711", strength: "0.42", vignette: "0.62" },
                bright: { base: "#111827", strength: "0.56", vignette: "0.46" },
              };
              var accent = Object.prototype.hasOwnProperty.call(accentTokens, vars.accent)
                ? vars.accent
                : "green";
              var mood = vars.mood === "bright" ? "bright" : "deep";
              var moodStyle = moodStyles[mood];

              root.style.setProperty("--ad-color", accentTokens[accent]);
              root.style.setProperty("--ad-base", moodStyle.base);
              root.style.setProperty("--ad-strength", moodStyle.strength);
              root.style.setProperty("--ad-vignette", moodStyle.vignette);

              var TAU = Math.PI * 2;
              var duration = Math.max(0.001, parseFloat(root.dataset.duration || "4"));
              var state = { phase: 0 };
              var paths = [
                { element: root.querySelector(".ad-blob-a"), offset: 0, x: 4.6, y: 3.2 },
                {
                  element: root.querySelector(".ad-blob-b"),
                  offset: TAU / 3,
                  x: 4.1,
                  y: 3.8,
                },
                {
                  element: root.querySelector(".ad-blob-c"),
                  offset: (TAU * 2) / 3,
                  x: 3.6,
                  y: 3,
                },
              ];

              function renderPose() {
                // The endpoint uses literal phase zero, avoiding the floating
                // point residue from Math.sin(2 * PI).
                var phase = state.phase === TAU ? 0 : state.phase;
                paths.forEach(function (path) {
                  gsap.set(path.element, {
                    x: Math.sin(phase + path.offset) * path.x + "cqw",
                    y: Math.sin(phase + path.offset + Math.PI / 2) * path.y + "cqh",
                  });
                });
              }

              var tl = gsap.timeline({ paused: true });

              // HOLD: uniform phase travel produces smooth sine motion. Exactly
              // one whole cycle is completed at the duration boundary.
              tl.to(state, { phase: TAU, duration: duration, ease: "none", onUpdate: renderPose }, 0);

              renderPose();
              tl.seek(0);

              window.__timelines = window.__timelines || {};
              window.__timelines["aurora-drift"] = tl;
            })();
          </script>
        </div>
      </template>
    </body>
  </html>
  ```
</Accordion>

Tagged `motion-primitive` `background` `aurora` `gradient` `ambient` `loopable`.

## Related topics

* [Browse the complete Catalog](/catalog)
* [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
* [Build a richer composition](/go-further)


## Related topics

- [VFX and liquid glass](/prompting/vfx-and-liquid-glass.md)
- [Drift Hold](/catalog/components/drift-hold.md)
- [Liquid Glass Notification](/catalog/blocks/liquid-glass-notification.md)
