> ## 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.

# Char Slam Explode

> Headline glyphs hold in a deterministic scatter, then reassemble with an overshooting slam and a three-frame landing shake.

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="char-slam-explode 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/char-slam-explode.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/char-slam-explode.png");document.body.appendChild(p)});<\/script></body></html>`} />

## Install

<InstallCommand command="npx hyperframes add char-slam-explode" />

That writes one file: `compositions/components/char-slam-explode.html`.

## Paste it into your composition

Open `compositions/components/char-slam-explode.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                                     |
| -------- | -------- | ------------------------- | ------------------------------------------------ |
| `text`   | `Impact` | string                    | Text split into glyphs for the scatter and slam. |
| `accent` | `green`  | `green`, `blue`, `violet` | Headline and glow color.                         |
| `spread` | `tight`  | `tight`, `wild`           | Distance and rotation of the scattered glyphs.   |

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="char-slam-explode"
  data-composition-src="compositions/components/char-slam-explode.html"
  data-variable-values='{"text":"Impact","accent":"green","spread":"tight"}'
></div>
```

## Source

<Accordion title={`char-slam-explode.html`}>
  ```html theme={null}
  <!doctype html>
  <!--
    char-slam-explode: HyperFrames video primitive

    A headline begins as individually scattered glyphs, holds the explosion,
    then reassembles with an overshooting slam and a deterministic three-frame
    stage shake.

    Variables:
      text: headline copy
      accent: green, blue, or violet headline color
      spread: tight or wild scatter distance

    Envelope, fixed IN and OUT with elastic HOLD:
      IN_BASE  = 1.64s, scattered hold, staggered return, and landing shake
      HOLD     = max(0, D - IN - OUT), subtle drift followed by 0.30s stillness
      OUT_BASE = 0.40s, composed headline fades and scales down
      If D is shorter than IN_BASE + OUT_BASE, IN and OUT compress together.
      The timeline is never time-scaled.

    The scatter table was generated at build time from fixed LCG seed
    0x0c5e2026. Runtime code only reads the authored table.

    Mount contract: the runtime clones only this template. #root fills the host
    box, establishes the container query basis, and has no data-width or
    data-height. One paused timeline registers under the literal
    char-slam-explode key.
  -->
  <html
    lang="en"
    data-composition-id="char-slam-explode"
    data-composition-duration="3.5"
    data-composition-variables='[
      { "id": "text", "type": "string", "role": "content", "label": "Headline", "description": "Text split into glyphs for the scatter and slam.", "default": "Impact" },
      { "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Headline and glow color.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
      { "id": "spread", "type": "enum", "role": "motion", "label": "Spread", "description": "Distance and rotation of the scattered glyphs.", "default": "tight", "options": [{ "value": "tight", "label": "Tight" }, { "value": "wild", "label": "Wild" }] }
    ]'
  >
    <head>
      <meta charset="UTF-8" />
      <title>Char Slam Explode</title>
    </head>
    <body>
      <template>
        <div id="root" data-composition-id="char-slam-explode" data-duration="3.5" data-fps="30">
          <style>
            *,
            *::before,
            *::after {
              box-sizing: border-box;
            }

            #root {
              position: absolute;
              inset: 0;
              overflow: hidden;
              container-type: size;
              isolation: isolate;
              color: var(--fg, #f8fafc);
              font-family: var(--font-display, Inter, system-ui, sans-serif);
              pointer-events: none;
            }

            .cse-clip,
            .cse-stage {
              position: absolute;
              inset: 0;
              width: 100cqw;
              height: 100cqh;
            }

            .cse-clip {
              overflow: hidden;
            }

            .cse-stage {
              display: grid;
              place-items: center;
              will-change: transform;
            }

            .cse-headline {
              display: flex;
              align-items: center;
              justify-content: center;
              width: 60cqw;
              min-height: 32cqh;
              color: var(--cse-accent, #71f5a7);
              font-size: var(--cse-font-size, min(10cqw, 27cqh));
              font-weight: 900;
              line-height: 0.9;
              letter-spacing: -0.045em;
              text-align: center;
              text-shadow:
                0 0 2.8cqh color-mix(in srgb, var(--cse-accent, #71f5a7) 28%, transparent),
                0 1.2cqh 4.5cqh color-mix(in srgb, #000 58%, transparent);
              white-space: nowrap;
              transform-origin: 50% 50%;
              will-change: transform, opacity;
            }

            .cse-glyph {
              display: inline-block;
              flex: 0 0 auto;
              white-space: pre;
              transform-origin: 50% 55%;
              will-change: transform;
            }
          </style>

          <div
            id="char-slam-explode-clip"
            class="cse-clip clip"
            data-start="0"
            data-duration="3.5"
            data-track-index="0"
          >
            <div class="cse-stage">
              <div class="cse-headline" role="heading" aria-level="1"></div>
            </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 stage = root.querySelector(".cse-stage");
              var headline = root.querySelector(".cse-headline");
              var vars =
                window.__hyperframes && window.__hyperframes.getVariables
                  ? window.__hyperframes.getVariables()
                  : {};

              var text = vars.text == null ? "Impact" : String(vars.text);
              var accentColors = {
                green: "var(--brand, #71f5a7)",
                blue: "var(--accent, #61a8ff)",
                violet: "var(--accent-2, #b895ff)",
              };
              var accent = Object.prototype.hasOwnProperty.call(accentColors, vars.accent)
                ? vars.accent
                : "green";
              var spread = vars.spread === "wild" ? "wild" : "tight";
              var spreadValues = {
                tight: { x: 9, y: 10, rotation: 12 },
                wild: { x: 17, y: 19, rotation: 22 },
              };

              root.style.setProperty("--cse-accent", accentColors[accent]);
              headline.setAttribute("aria-label", text);

              var characters = Array.from(text);
              characters.forEach(function (character, index) {
                var glyph = document.createElement("span");
                glyph.id = "char-slam-explode-glyph-" + index;
                glyph.className = "cse-glyph";
                glyph.textContent = /\s/.test(character) ? "\u00a0" : character;
                glyph.setAttribute("aria-hidden", "true");
                headline.appendChild(glyph);
              });

              // Conservative one-em-per-character fitting keeps any glyph mix
              // inside the 60cqw composed width. The height cap protects short,
              // wide mounts, while the surrounding clearance protects wild
              // scatter and the return overshoot.
              var fittedCqw = Math.min(13.5, 60 / Math.max(1, characters.length));
              root.style.setProperty(
                "--cse-font-size",
                "min(" + fittedCqw.toFixed(3) + "cqw, 27cqh)",
              );

              // Fixed-seed LCG table, generated at build time. Each row stores
              // normalized x, y, and rotation values. Long strings wrap the
              // authored table without introducing runtime randomness.
              var scatterTable = [
                [-0.9, -0.038, 0.677],
                [0.61, 0.716, -0.967],
                [0.418, 0.575, 0.822],
                [-0.76, -0.451, 0.944],
                [-0.621, 0.579, -0.215],
                [0.714, 0.437, -0.824],
                [0.577, 0.567, 0.464],
                [0.902, 0.346, 0.016],
                [-0.526, 0.743, -0.275],
                [-0.571, -0.353, 0.954],
                [-0.666, 0.61, -0.075],
                [-0.122, 0.875, -0.783],
                [-0.141, 0.726, -0.659],
                [0.606, -0.665, -0.713],
                [-0.962, 0.131, 0.307],
                [0.227, 0.813, -0.979],
                [0.264, -0.754, -0.013],
                [-0.4, 0.903, 0.573],
                [0.393, 0.542, -0.992],
                [0.884, -0.313, -0.834],
                [-0.048, 0.707, -0.331],
                [-0.766, 0.226, 0.567],
                [0.207, 0.734, -0.714],
                [-0.677, -0.614, 0.462],
                [0.389, -0.542, -0.384],
                [0.497, 0.716, 0.414],
                [0.729, -0.59, -0.774],
                [0.665, -0.061, -0.58],
                [-0.758, -0.546, 0.364],
                [0.113, 0.667, -0.202],
                [0.963, 0.171, 0.47],
                [0.662, -0.295, 0.912],
                [0.555, 0.548, 0.952],
                [-0.132, -0.677, 0.685],
                [-0.758, 0.133, -0.469],
                [-0.296, 0.697, 0.61],
                [-0.27, 0.786, -0.677],
                [-0.781, -0.478, -0.384],
                [-0.216, -0.633, -0.949],
                [0.721, -0.452, -0.62],
                [-0.434, 0.816, 0.526],
                [-0.794, 0.014, -0.971],
                [-0.683, -0.158, 0.844],
                [-0.914, 0.066, 0.396],
                [0.157, -0.721, -0.188],
                [0.662, -0.087, 0.573],
                [-0.732, 0.651, -0.935],
                [0.35, 0.605, 0.152],
                [-0.317, -0.668, 0.206],
                [0.139, 0.822, -0.11],
                [-0.821, 0.464, 0.347],
                [-0.668, -0.527, -0.879],
                [-0.578, -0.444, 0.673],
                [0.573, 0.744, 0.819],
                [-0.52, -0.449, 0.256],
                [-0.053, -0.703, 0.258],
                [-0.646, 0.266, -0.551],
                [-0.728, -0.448, -0.488],
                [-0.547, -0.5, -0.099],
                [0.714, 0.091, 0.084],
                [-0.114, 0.764, -0.357],
                [0.02, -0.706, -0.59],
                [0.144, -0.947, -0.95],
                [-0.851, 0.232, -0.445],
              ];
              var glyphs = Array.from(root.querySelectorAll(".cse-glyph"));
              var scatter = spreadValues[spread];

              glyphs.forEach(function (glyph, index) {
                var values = scatterTable[index % scatterTable.length];
                gsap.set(glyph, {
                  x: (values[0] * scatter.x).toFixed(3) + "cqw",
                  y: (values[1] * scatter.y).toFixed(3) + "cqh",
                  rotation: values[2] * scatter.rotation,
                  scale: 0.82,
                });
              });

              var IN_BASE = 1.64;
              var OUT_BASE = 0.4;
              var RETURN_AT_BASE = 0.58;
              var RETURN_DURATION_BASE = 0.66;
              var STAGGER_BASE = 0.28;
              var LAND_AT_BASE = RETURN_AT_BASE + RETURN_DURATION_BASE + STAGGER_BASE;
              var SHAKE_FRAME_BASE = 1 / 30;
              var STILL_HOLD_BASE = 0.3;
              var duration = Math.max(0.001, parseFloat(root.dataset.duration || "3.5"));
              var baseTotal = IN_BASE + OUT_BASE;
              var envelopeScale = duration < baseTotal ? duration / baseTotal : 1;
              var IN = IN_BASE * envelopeScale;
              var OUT = OUT_BASE * envelopeScale;
              var RETURN_AT = RETURN_AT_BASE * envelopeScale;
              var RETURN_DURATION = RETURN_DURATION_BASE * envelopeScale;
              var STAGGER = STAGGER_BASE * envelopeScale;
              var LAND_AT = LAND_AT_BASE * envelopeScale;
              var SHAKE_FRAME = SHAKE_FRAME_BASE * envelopeScale;
              var HOLD = Math.max(0, duration - IN - OUT);
              var ACTIVE_HOLD = Math.max(0, HOLD - Math.min(STILL_HOLD_BASE, HOLD));
              var HOLD_START = IN;
              var OUT_START = IN + HOLD;

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

              tl.to(
                glyphs,
                {
                  x: 0,
                  y: 0,
                  rotation: 0,
                  scale: 1,
                  duration: RETURN_DURATION,
                  ease: "back.out(1.7)",
                  stagger: { amount: STAGGER, from: "center" },
                },
                RETURN_AT,
              );

              tl.to(
                stage,
                { x: "0.55cqw", y: "-0.3cqh", duration: SHAKE_FRAME, ease: "power2.out" },
                LAND_AT,
              );
              tl.to(stage, {
                x: "-0.38cqw",
                y: "0.2cqh",
                duration: SHAKE_FRAME,
                ease: "power2.out",
              });
              tl.to(stage, { x: 0, y: 0, duration: SHAKE_FRAME, ease: "power2.out" });

              if (ACTIVE_HOLD > 0) {
                tl.fromTo(
                  headline,
                  { y: 0 },
                  {
                    y: "-0.4cqh",
                    duration: ACTIVE_HOLD / 2,
                    ease: "sine.inOut",
                    yoyo: true,
                    repeat: 1,
                    immediateRender: false,
                  },
                  HOLD_START,
                );
              }

              tl.to(
                headline,
                { opacity: 0, scale: 0.96, duration: OUT, ease: "power2.in" },
                OUT_START,
              );

              tl.seek(0);
              window.__timelines = window.__timelines || {};
              window.__timelines["char-slam-explode"] = tl;
            })();
          </script>
        </div>
      </template>
    </body>
  </html>
  ```
</Accordion>

Tagged `motion-primitive` `typography` `text-treatment` `scatter` `slam` `impact`.

## 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)
- [Kinetic Slam](/catalog/components/caption-kinetic-slam.md)
- [Headline Slam](/catalog/components/headline-slam.md)
