> ## Documentation Index
> Fetch the complete documentation index at: https://hyperframes-feat-registry-loop-blocks.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Loop Stories 2

> The current image fills the frame with a slow drift; the next slides in like a story. 8 image slots, 13s seamless loop, 1:1.

export const InstallCommand = ({command, item}) => {
  const [copied, setCopied] = React.useState(false);
  const [tuned, setTuned] = React.useState("");
  React.useEffect(() => {
    if (!item) return;
    const read = () => {
      try {
        const raw = new URLSearchParams(window.location.search).get(`vars-${item}`);
        if (!raw) return setTuned("");
        const parsed = JSON.parse(raw);
        if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) return setTuned("");
        if (Object.keys(parsed).length === 0) return setTuned("");
        setTuned(` --vars '${JSON.stringify(parsed)}'`);
      } catch {
        setTuned("");
      }
    };
    read();
    window.addEventListener("hf-vars-changed", read);
    window.addEventListener("popstate", read);
    return () => {
      window.removeEventListener("hf-vars-changed", read);
      window.removeEventListener("popstate", read);
    };
  }, [item]);
  const fullCommand = `${command}${tuned}`;
  const copy = async () => {
    try {
      if (navigator.clipboard && window.isSecureContext) {
        await navigator.clipboard.writeText(fullCommand);
      } else {
        const previous = document.activeElement;
        const scratch = document.createElement("textarea");
        scratch.value = fullCommand;
        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">
        {fullCommand}
      </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>;
};

<video className="w-full aspect-video rounded-xl object-cover bg-zinc-100 dark:bg-zinc-800" src="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/loop-stories-2.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/loop-stories-2.png" autoPlay muted loop playsInline />

## Install

<InstallCommand command="npx hyperframes add loop-stories-2" item="loop-stories-2" />

That writes one file: `compositions/loop-stories-2.html`.

## Add it to your video

It runs for 13 seconds at 1080×1080. Paste this into your composition:

```html index.html theme={null}
<div
  data-composition-id="loop-stories-2"
  data-composition-src="compositions/loop-stories-2.html"
  data-start="0"
  data-duration="13"
  data-track-index="1"
  data-width="1080"
  data-height="1080"
></div>
```

Move it in time with `data-start`. Put it on a different timeline row with
`data-track-index`. See [data attributes](/concepts/data-attributes) for the rest.

## 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                                                                             |
| ------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------- | ---------------------------------------------------------------------------------------- |
| `mediaFit`                | `natural`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | `natural`, `crop`                                 | Natural keeps each image's own ratio; Crop fills the card box at the media aspect below. |
| `cropAspectRatio`         | `1:1`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | `16:9`, `9:16`, `1:1`, `4:5`, `3:2`, `3:4`, `2:3` | Card aspect used when Fit is Crop.                                                       |
| `backgroundType`          | `gradient`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | `gradient`, `color`, `image`                      | Gradient (start → end colours), flat Colour, or your own Image.                          |
| `backgroundGradientStart` | `#111111`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | color                                             | Top colour of the gradient.                                                              |
| `backgroundGradientEnd`   | `#444444`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | color                                             | Bottom colour of the gradient.                                                           |
| `backgroundColor`         | `#0b0b0f`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | color                                             | Flat colour when Type is Color; also the ground under an Image.                          |
| `backgroundImage`         | \`\`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | image                                             | Cover-fitted background when Type is Image.                                              |
| `blurAmount`              | `0`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 0px to 60px, step 1px                             | Blur on the background image, px.                                                        |
| `backgroundGradientNoise` | `0`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 0% to 100%, step 1%                               | Film-grain overlay strength.                                                             |
| `backgroundOpacity`       | `1`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 0 to 1, step 0.05                                 | Opacity of the whole background layer (0 = transparent ground).                          |
| `borderRadius`            | `6`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 0px to 200px, step 1px                            | Card corner radius in px at 1080.                                                        |
| `cycles`                  | `1`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 0 to 10, step 0.1                                 | Number of motion cycles per loop.                                                        |
| `delay`                   | `0.33`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | 0s to 2s, step 0.01s                              | Hold time between steps, seconds.                                                        |
| `direction`               | `down`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | `right`, `left`, `down`, `up`                     | Direction of travel.                                                                     |
| `thumbAspect`             | `3:4`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | `1:1`, `3:4`, `4:3`                               | Thumb Aspect (engine parameter; see the block header comment).                           |
| `bigScale`                | `115`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | 0 to 230, step 10                                 | Big Scale (engine parameter; see the block header comment).                              |
| `bigDrift`                | `40`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 0 to 80, step 1                                   | Big Drift (engine parameter; see the block header comment).                              |
| `thumbSize`               | `100`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | 0 to 200, step 1                                  | Thumb Size (engine parameter; see the block header comment).                             |
| `containerOpacity`        | `40`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 0 to 80, step 1                                   | Container Opacity (engine parameter; see the block header comment).                      |
| `containerBlur`           | `60`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 0 to 120, step 1                                  | Container Blur (engine parameter; see the block header comment).                         |
| `selectorPad`             | `5`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 0 to 11, step 0.1                                 | Selector Pad (engine parameter; see the block header comment).                           |
| `selectorStroke`          | `2`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 0 to 10, step 0.1                                 | Selector Stroke (engine parameter; see the block header comment).                        |
| `dimAmount`               | `38`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 0 to 100, step 1                                  | Dim Amount (engine parameter; see the block header comment).                             |
| `offsetX`                 | `-35`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | -100% to 100%, step 1%                            | Horizontal offset of the formation, % of width.                                          |
| `offsetY`                 | `0`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | -100% to 100%, step 1%                            | Vertical offset of the formation, % of height.                                           |
| `image1`                  | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1050' viewBox%3D'0 0 1400 1050'%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1046' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 778.05H621.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M286.65 778.05L379.05 662.55L471.45 778.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'552.3' cy%3D'674.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E`                                   | image                                             | Image on card 1 of 8. Any aspect; fitted per mediaFit.                                   |
| `image2`                  | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'788' viewBox%3D'0 0 1400 788'%3E%3Crect width%3D'1400' height%3D'788' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'788' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'784' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 583.908H529.376' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'12.382857142857144' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M278.004 583.908L347.348 497.228L416.692 583.908Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'477.36800000000005' cy%3D'505.896' r%3D'26.004' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image                                             | Image on card 2 of 8. Any aspect; fitted per mediaFit.                                   |
| `image3`                  | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1050' height%3D'1400' viewBox%3D'0 0 1050 1400'%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1046' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M189 995.05H558.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M223.65 995.05L316.05 879.55L408.45 995.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'489.3' cy%3D'891.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E`                                   | image                                             | Image on card 3 of 8. Any aspect; fitted per mediaFit.                                   |
| `image4`                  | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1400' viewBox%3D'0 0 1400 1400'%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 1037.4H744.8' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'22' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M298.2 1037.4L421.4 883.4L544.5999999999999 1037.4Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'652.4000000000001' cy%3D'898.8' r%3D'46.199999999999996' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E`    | image                                             | Image on card 4 of 8. Any aspect; fitted per mediaFit.                                   |
| `image5`                  | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1050' viewBox%3D'0 0 1400 1050'%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1046' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 778.05H621.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M286.65 778.05L379.05 662.55L471.45 778.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'552.3' cy%3D'674.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E`                                   | image                                             | Image on card 5 of 8. Any aspect; fitted per mediaFit.                                   |
| `image6`                  | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'788' viewBox%3D'0 0 1400 788'%3E%3Crect width%3D'1400' height%3D'788' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'788' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'784' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 583.908H529.376' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'12.382857142857144' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M278.004 583.908L347.348 497.228L416.692 583.908Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'477.36800000000005' cy%3D'505.896' r%3D'26.004' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image                                             | Image on card 6 of 8. Any aspect; fitted per mediaFit.                                   |
| `image7`                  | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1050' height%3D'1400' viewBox%3D'0 0 1050 1400'%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1046' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M189 995.05H558.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M223.65 995.05L316.05 879.55L408.45 995.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'489.3' cy%3D'891.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E`                                   | image                                             | Image on card 7 of 8. Any aspect; fitted per mediaFit.                                   |
| `image8`                  | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1400' viewBox%3D'0 0 1400 1400'%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 1037.4H744.8' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'22' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M298.2 1037.4L421.4 883.4L544.5999999999999 1037.4Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'652.4000000000001' cy%3D'898.8' r%3D'46.199999999999996' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E`    | image                                             | Image on card 8 of 8. Any aspect; fitted per mediaFit.                                   |

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="loop-stories-2"
  data-composition-src="compositions/loop-stories-2.html"
  data-variable-values='{"mediaFit":"natural","cropAspectRatio":"1:1","backgroundType":"gradient","backgroundGradientStart":"#111111","backgroundGradientEnd":"#444444","backgroundColor":"#0b0b0f","backgroundImage":"","blurAmount":0,"backgroundGradientNoise":0,"backgroundOpacity":1,"borderRadius":6,"cycles":1,"delay":0.33,"direction":"down","thumbAspect":"3:4","bigScale":115,"bigDrift":40,"thumbSize":100,"containerOpacity":40,"containerBlur":60,"selectorPad":5,"selectorStroke":2,"dimAmount":38,"offsetX":-35,"offsetY":0,"image1":"data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1050' viewBox%3D'0 0 1400 1050'%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1046' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 778.05H621.6' 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></div>
```

## Source

<Accordion title={`loop-stories-2.html`}>
  ```html theme={null}
  <!doctype html>
  <html
    lang="en"
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see the block header comment).","default":"3:4","options":[{"value":"1:1","label":"1:1"},{"value":"3:4","label":"3:4"},{"value":"4:3","label":"4:3"}]},{"id":"bigScale","type":"number","role":"style","label":"Template options · Big Scale","description":"Big Scale (engine parameter; see the block header comment).","default":115,"min":0,"max":230,"step":10},{"id":"bigDrift","type":"number","role":"style","label":"Template options · Big Drift","description":"Big Drift (engine parameter; see the block header comment).","default":40,"min":0,"max":80,"step":1},{"id":"thumbSize","type":"number","role":"style","label":"Template options · Thumb Size","description":"Thumb Size (engine parameter; see the block header comment).","default":100,"min":0,"max":200,"step":1},{"id":"containerOpacity","type":"number","role":"style","label":"Template options · Container Opacity","description":"Container Opacity (engine parameter; see the block header comment).","default":40,"min":0,"max":80,"step":1},{"id":"containerBlur","type":"number","role":"style","label":"Template options · Container Blur","description":"Container Blur (engine parameter; 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  >
    <head>
      <title>loop-stories-2</title>
      <meta charset="UTF-8" />
      <meta name="viewport" content="width=1080, height=1080" />
      <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
      <style>
        * {
          margin: 0;
          padding: 0;
          box-sizing: border-box;
        }
        html,
        body {
          width: 1080px;
          height: 1080px;
          overflow: hidden;
          background: #0b0b0f;
        }
        #loop-stories-2-bg {
          position: absolute;
          inset: 0;
        }
        #loop-stories-2-big {
          position: absolute;
          inset: 0;
          overflow: hidden;
        }
        #loop-stories-2-big img {
          position: absolute;
          left: 0;
          top: 0;
          width: 100%;
          height: 100%;
          object-fit: cover;
          display: none;
        }
        #loop-stories-2-strip {
          position: absolute;
          left: 50%;
          top: 50%;
          overflow: hidden;
        } /* clip box = panel bounds; the ring wraps through it */
        #loop-stories-2-panel {
          position: absolute;
          inset: 0;
        }
        .thumb {
          position: absolute;
          overflow: hidden;
        }
        .thumb img {
          display: block;
          width: 100%;
          height: 100%;
          object-fit: cover;
        }
        .thumb .dim {
          position: absolute;
          inset: 0;
          background: #000;
        }
        .ring {
          position: absolute;
          border: 0 solid #fff;
        }
      </style>
    </head>
    <body>
      <div
        id="loop-stories-2-root"
        data-composition-id="loop-stories-2"
        data-start="0"
        data-width="1080"
        data-height="1080"
        data-duration="13"
      >
        <div
          id="loop-stories-2-loop"
          class="clip"
          data-start="0"
          data-duration="13"
          data-track-index="1"
          data-layout-allow-overflow
        >
          <div id="loop-stories-2-bg"></div>
          <div id="loop-stories-2-big"></div>
          <div id="loop-stories-2-strip"><div id="loop-stories-2-panel"></div></div>
        </div>
      </div>
      <script>
        // Shared runtime for the the reference tool loop ports. Loaded by every family engine.
        // Everything here is a pure function of the HyperFrames variables + t.
        //
        // Reference constants (measured on the 512x512 preview library, 2026-09-08):
        //   Marquee planeSize -> 0.3% of frame height per unit (7 variants, all 1.54px/unit @512)
        //   Marquee gap       -> 0.2% of frame height per unit
        //   3D perspective    -> CSS focal length f = 1000px * (100/perspective) at H=1080
        //                        (3D01/02/08/11: card widths & far-card spacing match to <3%)
        // Both are calibrated on a SQUARE canvas; for 16:9 we scale by H. ponytail: if the
        // dashboard 16:9 reference shows width-relative scaling, flip REF below to W.
        window.RF = (() => {
          // Variables are injected by the inline script via RF.use(): HyperFrames wraps INLINE scripts in a
          // per-composition scope where getVariables() resolves; this external file only sees the host window.
          const V = {},
            MEDIA = [];
          const use = (vars, media) => {
            Object.assign(V, vars || {});
            MEDIA.splice(0, MEDIA.length, ...(media || []));
          };
          const root = document.querySelector("[data-composition-id]");
          const W = +root.dataset.width,
            H = +root.dataset.height;
          const REF = H;
          const num = (k, d) => (V[k] !== undefined && V[k] !== "" && !isNaN(+V[k]) ? +V[k] : d);
          const str = (k, d) => (V[k] !== undefined && V[k] !== "" ? String(V[k]) : d);
          const on = (k, d) => /^(true|on|1)$/i.test(str(k, d ? "on" : "off")); // spec booleans arrive as "true"/"false", enums as on/off

          function pick(n) {
            n = Math.max(1, Math.min(MEDIA.length, n | 0));
            return MEDIA.slice(0, n);
          }
          // aspect (w/h) a card takes for a media item under mediaFit + cropAspectRatio
          function aspect(m, fit, cropAR) {
            if (fit === "natural") return m.w / m.h;
            const [a, b] = String(cropAR || "1:1")
              .split(":")
              .map(Number);
            return a && b ? a / b : 1;
          }
          function card(m, w, h, radius) {
            const el = document.createElement("div");
            el.className = "card";
            el.style.cssText = `position:absolute;width:${w}px;height:${h}px;overflow:hidden;border-radius:${radius}px;`;
            const img = document.createElement("img");
            img.src = m.src;
            img.width = Math.round(w);
            img.height = Math.round(h);
            img.style.cssText = `display:block;width:${w}px;height:${h}px;object-fit:cover;`;
            el.appendChild(img);
            return el;
          }
          function background(el) {
            // the editor's Background panel: type gradient | color | image, gradient start/end, grain (noise %), opacity, image blur
            const type = str("backgroundType", "gradient");
            const c = str("backgroundColor", "#0b0b0f");
            el.style.background = c;
            if (type === "gradient") {
              const g1 = str("backgroundGradientStart", "#111111"),
                g2 = str("backgroundGradientEnd", "#444444");
              el.style.background = `linear-gradient(180deg, ${g1}, ${g2})`;
            } else if (type === "image") {
              const im = V.backgroundImage,
                src = im && typeof im === "object" ? im.url || im.src || "" : im || "";
              if (src) {
                el.style.background = `${c} url("${src}") center / cover no-repeat`;
                const b = num("blurAmount", 0);
                if (b > 0) el.style.filter = `blur(${b}px)`;
              }
            }
            el.style.opacity = String(Math.max(0, Math.min(1, num("backgroundOpacity", 1))));
            const noise = num("backgroundGradientNoise", 0);
            if (noise > 0) {
              const g = document.createElement("div");
              g.style.cssText = `position:absolute;inset:0;pointer-events:none;mix-blend-mode:overlay;opacity:${((noise / 100) * 0.7).toFixed(3)};background:url("data:image/svg+xml,%3Csvg%20xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg'%20width%3D'256'%20height%3D'256'%3E%3Cfilter%20id%3D'n'%3E%3CfeTurbulence%20type%3D'fractalNoise'%20baseFrequency%3D'0.9'%20numOctaves%3D'3'%20stitchTiles%3D'stitch'%20seed%3D'7'%2F%3E%3CfeColorMatrix%20values%3D'0%200%200%200%200.5%200%200%200%200%200.5%200%200%200%200%200.5%200%200%200%201%200'%2F%3E%3C%2Ffilter%3E%3Crect%20width%3D'256'%20height%3D'256'%20filter%3D'url(%23n)'%2F%3E%3C%2Fsvg%3E") 0 0 / 256px 256px repeat`;
              el.appendChild(g);
            }
          }
          const expoInOut = (x) =>
            x <= 0
              ? 0
              : x >= 1
                ? 1
                : x < 0.5
                  ? Math.pow(2, 20 * x - 10) / 2
                  : (2 - Math.pow(2, -20 * x + 10)) / 2;
          const frac = (x) => x - Math.floor(x);
          return {
            V,
            use,
            W,
            H,
            REF,
            num,
            str,
            on,
            MEDIA,
            pick,
            aspect,
            card,
            background,
            expoInOut,
            frac,
          };
        })();
      </script>
      <script>
        (async () => {
          // Stories loop family — the current image fills the frame (bigScale %, slow drift);
          // a strip of thumbs with a selector ring that steps along; thumbs not under the ring are dimmed.
          // Measured @512 (2026-09-08): thumb width = thumbSize·H/1080 (85 -> 40px, 100 -> 47px), height from thumbAspect
          // (3:4 -> 53/63px measured); thumb gap 7-8px (~15.5px @1080, fixed; not selectorPad); strip centre at
          // (offsetX% of W, offsetY% of H) from the frame centre (01: y = +153 = 30%; 02/03: x = -179 = -35%);
          // ring = thumb + 2·(selectorPad+selectorStroke) px@1080 (46.7 vs 46 measured), white, stroke px@1080;
          // panel (01/02) = strip bbox padded by the gap, black at 0.3·containerOpacity% (74 -> 65 luma = 12%),
          // backdrop blur containerBlur px@1080 (unit guess); no panel when containerOpacity = 0 (03/04 confirmed).
          // Timing: step = DUR/(N·cycles); the ring rests, then moves one thumb over [delay s, step] with easeInOutCubic
          // (01: motion frames 10-48 of 48.75, 03 (delay 0): continuous); the big image HARD-CUTS at the midpoint of
          // the ring's move (01: frame 29-30, 03: frame 24); dim crossfades with the ring (mid luma = midpoint).
          // Knobs: drift = bigDrift% of the bigScale overscan travelled along the strip axis while an image is up (guess);
          // panel/thumb corner radius = borderRadius px@1080.
          // media list [{src,w,h}] is inlined by build.mjs; HyperFrames scopes inline scripts, so hand both to the shared lib explicitly
          const __V = Object.assign(
            {},
            (window.__hyperframes && window.__hyperframes.getVariables
              ? window.__hyperframes.getVariables()
              : null) || {},
            { loopDuration: 13, loopRepeat: 2, imageCount: 8 },
          );
          const __PH = [
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            "data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1400' viewBox%3D'0 0 1400 1400'%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 1037.4H744.8' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'22' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M298.2 1037.4L421.4 883.4L544.5999999999999 1037.4Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'652.4000000000001' cy%3D'898.8' r%3D'46.199999999999996' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E",
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            "data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1050' height%3D'1400' viewBox%3D'0 0 1050 1400'%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1046' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M189 995.05H558.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M223.65 995.05L316.05 879.55L408.45 995.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'489.3' cy%3D'891.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E",
            "data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1400' viewBox%3D'0 0 1400 1400'%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 1037.4H744.8' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'22' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M298.2 1037.4L421.4 883.4L544.5999999999999 1037.4Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'652.4000000000001' cy%3D'898.8' r%3D'46.199999999999996' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E",
          ];
          const __MEDIA = await Promise.all(
            ["image1", "image2", "image3", "image4", "image5", "image6", "image7", "image8"].map(
              async (id, i) => {
                const v = __V[id];
                const src = (v && typeof v === "object" ? v.url || v.src : v) || __PH[i];
                const img = new Image();
                img.src = src;
                try {
                  await img.decode();
                } catch (e) {}
                return { src, w: img.naturalWidth || 1400, h: img.naturalHeight || 1050 };
              },
            ),
          );
          RF.use(__V, __MEDIA);
          const { W, H, REF, num, str, pick, background, frac } = RF;
          const DUR = num("loopDuration", 13);
          const TASP = str("thumbAspect", "1:1").split(":").map(Number);
          const TA = TASP[0] && TASP[1] ? TASP[0] / TASP[1] : 1;
          const BIGSC = num("bigScale", 115) / 100;
          const DRIFT = num("bigDrift", 40) / 100;
          const TW = (num("thumbSize", 85) * REF) / 1080,
            TH = TW / TA;
          const COP = num("containerOpacity", 40) / 100;
          const CBLUR = (num("containerBlur", 60) * REF) / 1080;
          const SPAD = (num("selectorPad", 5) * REF) / 1080;
          const SSTK = (num("selectorStroke", 2) * REF) / 1080;
          const DIM = num("dimAmount", 20) / 100;
          const OX = (num("offsetX", 0) / 100) * W,
            OY = (num("offsetY", 30) / 100) * H;
          const CYCLES = Math.max(1, num("cycles", 1) | 0);
          const DELAY = Math.max(0, num("delay", 0.33));
          const DIRN = str("direction", "right");
          const RADIUS = (num("borderRadius", 6) * REF) / 1080;
          const IMAGES = pick(Math.min(12, num("imageCount", 16)));
          const N = IMAGES.length;
          const VERT = DIRN === "down" || DIRN === "up";
          const REV = DIRN === "left" || DIRN === "up"; // ring travels toward negative axis
          const GAP = (15.5 * REF) / 1080;
          const STEPS = N * CYCLES,
            STEP = DUR / STEPS;

          const cubic = (x) =>
            x <= 0 ? 0 : x >= 1 ? 1 : x < 0.5 ? 4 * x * x * x : 1 - Math.pow(-2 * x + 2, 3) / 2;

          document.getElementById("loop-stories-2-loop").dataset.duration = DUR;
          background(document.getElementById("loop-stories-2-bg"));
          // big image layer: one <img> per image, cover-fitted, scaled by bigScale
          const big = document.getElementById("loop-stories-2-big");
          const bigs = IMAGES.map((m) => {
            const i = document.createElement("img");
            i.src = m.src;
            big.appendChild(i);
            return i;
          });
          // strip geometry (axis coordinate of thumb j's centre; strip centred on OX/OY)
          const PITCH = (VERT ? TH : TW) + GAP,
            LEN = N * (VERT ? TH : TW) + (N - 1) * GAP;
          const axisPos = (j) => (REV ? -1 : 1) * ((j + 0.5) * PITCH - GAP / 2 - LEN / 2);
          const strip = document.getElementById("loop-stories-2-strip");
          const PW = (VERT ? TW : LEN) + 2 * GAP,
            PH = (VERT ? LEN : TH) + 2 * GAP; // clip box (= panel) size
          strip.style.cssText = `width:${PW}px;height:${PH}px;transform:translate(${OX - PW / 2}px,${OY - PH / 2}px);`;
          const CX = PW / 2,
            CY = PH / 2;
          const panel = document.getElementById("loop-stories-2-panel");
          if (COP > 0)
            panel.style.cssText =
              `border-radius:${RADIUS + GAP}px;background:rgba(0,0,0,${0.3 * COP});` +
              (CBLUR > 0
                ? `backdrop-filter:blur(${CBLUR}px);-webkit-backdrop-filter:blur(${CBLUR}px);`
                : "");
          else panel.style.display = "none";
          const thumbs = [],
            dims = [];
          for (let j = 0; j < N; j++) {
            const t = document.createElement("div");
            t.className = "thumb";
            const p = axisPos(j),
              x = CX + (VERT ? -TW / 2 : p - TW / 2),
              y = CY + (VERT ? p - TH / 2 : -TH / 2);
            t.style.cssText = `left:${x}px;top:${y}px;width:${TW}px;height:${TH}px;border-radius:${RADIUS}px;`;
            const im = document.createElement("img");
            im.src = IMAGES[j].src;
            t.appendChild(im);
            const d = document.createElement("div");
            d.className = "dim";
            t.appendChild(d);
            strip.appendChild(t);
            thumbs.push(t);
            dims.push(d);
          }
          // two ring copies: the second trails one strip-length behind so the wrap slides off one end and in at the other
          const RW = TW + 2 * (SPAD + SSTK),
            RH = TH + 2 * (SPAD + SSTK);
          const rings = [0, 1].map(() => {
            const r = document.createElement("div");
            r.className = "ring";
            r.style.cssText =
              `width:${RW}px;height:${RH}px;border-width:${SSTK}px;border-radius:${RADIUS + SPAD + SSTK}px;` +
              (SSTK > 0 ? "" : "display:none;");
            strip.appendChild(r);
            return r;
          });
          const SGN = REV ? -1 : 1;

          function renderAt(t) {
            const u = frac(t) * STEPS,
              k = Math.floor(u),
              local = (u - k) * STEP; // seconds into the step
            const e =
              STEP > DELAY
                ? cubic(Math.max(0, local - DELAY) / (STEP - DELAY))
                : local >= STEP
                  ? 1
                  : 0;
            const pos = (k % N) + e; // ring position in thumb units
            const shown = (e < 0.5 ? k : k + 1) % N; // big image hard-cuts at mid-move
            // drift: image travels DRIFT of its overscan along the strip axis while it is up (mid k-1 -> mid k)
            const phase = e < 0.5 ? 0.5 + e : e - 0.5;
            const over = ((BIGSC - 1) * (VERT ? H : W)) / 2,
              dx = (2 * phase - 1) * DRIFT * over * (REV ? 1 : -1);
            for (let j = 0; j < N; j++) {
              const b = bigs[j];
              if (j !== shown) {
                b.style.display = "none";
                continue;
              }
              b.style.display = "block";
              b.style.transform = `scale(${BIGSC}) translate(${VERT ? 0 : dx}px,${VERT ? dx : 0}px)`;
              b.style.transformOrigin = "50% 50%";
            }
            const rp = axisPos(k % N) + SGN * PITCH * e; // linear along the strip, may run off the end
            rings.forEach((r, c) => {
              const q = rp - c * SGN * N * PITCH;
              r.style.left = CX + (VERT ? -RW / 2 : q - RW / 2) + "px";
              r.style.top = CY + (VERT ? q - RH / 2 : -RH / 2) + "px";
            });
            for (let j = 0; j < N; j++) {
              let sel = Math.max(0, 1 - Math.abs(j - pos));
              if (j === 0 && k % N === N - 1) sel = Math.max(sel, e); // wrap: thumb 0 lights up as the ring returns
              dims[j].style.opacity = String(DIM * (1 - sel));
            }
          }
          // one paused linear tween drives t; every frame is recomputed from t alone (seek-safe)
          const state = { t: 0 };
          const tl = gsap.timeline({ paused: true });
          tl.to(state, { t: 1, duration: DUR, ease: "none", onUpdate: () => renderAt(state.t) }, 0);
          renderAt(0);
          window.__timelines = window.__timelines || {};
          window.__timelines["loop-stories-2"] = tl;
        })();
      </script>
    </body>
  </html>
  ```
</Accordion>

Tagged `loop` `images` `showcase` `gallery` `stories`.

Created by Miao Yang.

## Related topics

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