mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-09-14 18:01:20 +08:00
Miguel Angel Simon Sierra
c7e6e5820e
hyperframesAnime.register() primes each timeline by seeking to its end and back to 0. morph-text drives its word swap from an onUpdate proxy tween with manual DOM writes, so the mid-word text painted by the priming seek has nothing for anime.js to restore on the return seek and the wrong headline stuck at t=0 (baseline shows 'Do more with less.', port showed a later word). Re-assert applyMorph(0) after registration, and normalize the modulo in applyMorph so a float-rounding hair-below-zero T from the return seek cannot floor to the last word. Applied to both demo.html and the distributable morph-text.html (same pattern in both twins). Verified by frame comparison against the pinned GSAP baseline at t=0, 10.03, 10.5 and 12.0: t=0 now matches; the t=10-14.9s soft cluster is blur-morph antialiasing jitter with identical content.
254 lines
8.0 KiB
HTML
Vendored
254 lines
8.0 KiB
HTML
Vendored
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=1920, height=1080" />
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<title>Morph Text</title>
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<link rel="preconnect" href="https://fonts.googleapis.com" />
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
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<link
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href="https://fonts.googleapis.com/css2?family=Figtree:wght@900&display=block"
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rel="stylesheet"
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/>
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<script src="https://cdn.jsdelivr.net/npm/animejs@4.5.0/dist/bundles/anime.umd.min.js"></script>
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<style>
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*,
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*::before,
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*::after {
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box-sizing: border-box;
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}
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html,
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body {
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margin: 0;
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width: 1920px;
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height: 1080px;
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overflow: hidden;
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background: #fff;
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}
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#morph-text {
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position: relative;
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width: 1920px;
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height: 1080px;
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}
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/* Word list: hidden source of truth — edit <li> items in Studio. */
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#morph-words {
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display: none;
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list-style: none;
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margin: 0;
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padding: 0;
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}
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#morph-filter {
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position: absolute;
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width: 0;
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height: 0;
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overflow: hidden;
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pointer-events: none;
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}
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#morph-wrapper {
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position: absolute;
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top: 50%;
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left: 0;
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transform: translateY(-50%);
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width: 1920px;
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height: 210px;
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filter: drop-shadow(0 10px 44px rgba(0, 0, 0, 0.5))
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drop-shadow(0 3px 10px rgba(0, 0, 0, 0.25));
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}
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#morph-display {
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width: 100%;
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height: 100%;
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filter: none;
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}
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#morph-a,
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#morph-b {
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position: absolute;
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width: 100%;
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display: inline-block;
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text-align: center;
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font-size: 120pt;
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font-weight: 900;
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line-height: 1;
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user-select: none;
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}
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</style>
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</head>
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<body>
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<div
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id="morph-text"
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data-composition-id="morph-text"
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data-timeline-locked
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data-width="1920"
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data-height="1080"
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data-duration="15"
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data-fps="30"
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data-morph-speed="1"
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data-morph-pause="1.5"
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>
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<!--
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Edit words here — one <li> per word or phrase.
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data-font : CSS font-family (e.g. "'Figtree', sans-serif")
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data-color : text color hex (e.g. "#000000")
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Adjust data-morph-speed (seconds per morph) and data-morph-pause (hold time) above.
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-->
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<ol id="morph-words" aria-hidden="true">
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<li data-font="'Figtree', sans-serif" data-color="#000000">Do more with less.</li>
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<li data-font="'Figtree', sans-serif" data-color="#000000">Built for what's next.</li>
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<li data-font="'Figtree', sans-serif" data-color="#000000">Fast. Focused. Powerful.</li>
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<li data-font="'Figtree', sans-serif" data-color="#000000">Your work, amplified.</li>
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<li data-font="'Figtree', sans-serif" data-color="#000000">Start free today.</li>
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</ol>
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<svg id="morph-filter" aria-hidden="true" focusable="false">
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<defs>
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<filter id="morph-threshold">
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<feColorMatrix
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in="SourceGraphic"
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type="matrix"
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values="1 0 0 0 0
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0 1 0 0 0
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0 0 1 0 0
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0 0 0 255 -100"
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/>
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</filter>
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</defs>
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</svg>
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<div id="morph-wrapper">
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<div id="morph-display">
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<span id="morph-a"></span>
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<span id="morph-b"></span>
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</div>
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</div>
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</div>
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<script>
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(function () {
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"use strict";
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var container = document.getElementById("morph-text");
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var display = document.getElementById("morph-display");
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var elA = document.getElementById("morph-a");
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var elB = document.getElementById("morph-b");
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var words = Array.from(document.querySelectorAll("#morph-words li"))
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.map(function (el) {
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return {
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text: el.textContent.trim(),
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font: el.dataset.font || "'Figtree', sans-serif",
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color: el.dataset.color || "#111111",
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};
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})
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.filter(function (w) {
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return w.text;
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});
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if (words.length < 2) {
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words = [
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{ text: "Morph", font: "'Figtree', sans-serif", color: "#111111" },
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{ text: "Text", font: "'Figtree', sans-serif", color: "#111111" },
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];
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}
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var morphSpeed = parseFloat(container.dataset.morphSpeed || "1");
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var morphPause = parseFloat(container.dataset.morphPause || "1.5");
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var duration = parseFloat(container.dataset.duration || "9");
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var stepDur = morphSpeed + morphPause;
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var totalWordDur = words.length * stepDur;
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function applyMorph(T) {
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// anime.js's registration-time priming dance (seek to the end, then
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// back to 0) can hand this onUpdate callback a T that is a hair
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// below 0 (floating-point rounding on the return seek), and JS's `%`
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// keeps the sign of its left operand -- a tiny negative T here would
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// floor to stepIdx -1 and silently land on the LAST word instead of
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// the first. Normalize into [0, totalWordDur) before deriving the step.
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var t = ((T % totalWordDur) + totalWordDur) % totalWordDur;
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var stepIdx = Math.floor(t / stepDur);
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var stepT = t - stepIdx * stepDur;
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var frac = Math.min(stepT / morphSpeed, 1);
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var wA = words[stepIdx % words.length];
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var wB = words[(stepIdx + 1) % words.length];
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elA.textContent = wA.text;
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elA.style.fontFamily = wA.font;
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elA.style.color = wA.color;
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elB.textContent = wB.text;
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elB.style.fontFamily = wB.font;
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elB.style.color = wB.color;
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if (frac <= 0) {
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display.style.filter = "none";
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elA.style.filter = "";
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elA.style.opacity = "1";
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elB.style.filter = "";
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elB.style.opacity = "0";
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} else if (frac >= 1) {
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display.style.filter = "none";
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elA.style.filter = "";
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elA.style.opacity = "0";
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elB.style.filter = "";
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elB.style.opacity = "1";
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} else {
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display.style.filter = "url(#morph-threshold)";
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var blurB = Math.max(0, Math.min(8 / frac - 8, 100));
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var blurA = Math.max(0, Math.min(8 / (1 - frac) - 8, 100));
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elB.style.filter = "blur(" + blurB + "px)";
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elB.style.opacity = frac;
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elA.style.filter = "blur(" + blurA + "px)";
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elA.style.opacity = 1 - frac;
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}
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}
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if (matchMedia("(prefers-reduced-motion: reduce)").matches) {
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elA.textContent = words[0].text;
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elA.style.fontFamily = words[0].font;
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elA.style.color = words[0].color;
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elA.style.opacity = "1";
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display.style.filter = "none";
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return;
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}
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var proxy = { t: 0 };
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var tl = anime.createTimeline({ autoplay: false });
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tl.add(
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proxy,
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{
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t: duration,
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duration: duration * 1000,
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ease: "linear",
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onUpdate: function () {
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applyMorph(proxy.t);
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},
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},
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0,
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);
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applyMorph(0);
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tl.seek(0);
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hyperframesAnime.register("morph-text", tl, {});
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// hyperframesAnime.register() primes every timeline by seeking to its
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// end and back to 0 so anime.js engages children added at position >
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// 0 (see runtime/adapters/animejs.ts). When `duration` is not an
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// exact multiple of totalWordDur, the priming seek to the end lands
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// mid-word and drives this onUpdate's manual DOM writes; unlike a
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// tracked CSS property, anime.js has nothing to "restore" here on the
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// return seek to 0, so the mid-word text can stick. Re-assert the true
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// t=0 state explicitly, after priming, as a deterministic source of truth.
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applyMorph(0);
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})();
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</script>
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</body>
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</html>
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