Clip-path Reveal on Scroll

Code

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #050910;
  color: #f2f6ff;
}

.hero {
  height: 100vh;
  display: grid;
  place-items: center;
  place-content: center;
  gap: 1rem;
  text-align: center;
}

.hero-label {
  color: #334155;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-arrow {
  font-size: 1.5rem;
  color: #334155;
  animation: bounce 1.5s ease-in-out infinite;
}
@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(8px);
  }
}

/* ── Sections ── */
.reveal-section {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 4rem 2rem;
}

.reveal-block {
  width: min(700px, 100%);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 1.5rem;
  overflow: hidden;
}

.reveal-inner {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.reveal-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  align-self: flex-start;
}

.reveal-inner h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.reveal-inner p {
  font-size: 0.9rem;
  color: #475569;
  line-height: 1.65;
}

/* ── Split variant ── */
.reveal-split {
  display: flex;
  width: min(700px, 100%);
  gap: 2px;
  border-radius: 1.5rem;
  overflow: hidden;
}

.reveal-half {
  flex: 1;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.reveal-half .reveal-inner {
  padding: 3rem 2rem;
  align-items: center;
  text-align: center;
}

.reveal-half--left h2 {
  color: #38bdf8;
  font-size: clamp(2.5rem, 6vw, 5rem);
}
.reveal-half--right h2 {
  color: #818cf8;
  font-size: clamp(2.5rem, 6vw, 5rem);
}

(function () {
  if (!window.gsap || !window.ScrollTrigger) return;

  gsap.registerPlugin(ScrollTrigger);

  const reduced = window.matchMedia("(prefers-reduced-motion: reduce)").matches;

  if (reduced) {
    gsap.set(".reveal-block, .reveal-half", { clipPath: "inset(0 0% 0 0)" });
    return;
  }

  // ── Wipe from right → left ──
  const leftEl = document.querySelector(".reveal--left");
  if (leftEl) {
    gsap.fromTo(
      leftEl,
      { clipPath: "inset(0 100% 0 0)" },
      {
        clipPath: "inset(0 0% 0 0)",
        ease: "power2.inOut",
        scrollTrigger: { trigger: leftEl, start: "top 80%", end: "top 30%", scrub: 1 },
      }
    );
  }

  // ── Wipe from bottom → up ──
  const bottomEl = document.querySelector(".reveal--bottom");
  if (bottomEl) {
    gsap.fromTo(
      bottomEl,
      { clipPath: "inset(100% 0 0 0)" },
      {
        clipPath: "inset(0% 0 0 0)",
        ease: "power2.inOut",
        scrollTrigger: { trigger: bottomEl, start: "top 80%", end: "top 20%", scrub: 1.2 },
      }
    );
  }

  // ── Split reveal — both halves from center out ──
  const leftHalf = document.querySelector(".reveal-half--left");
  const rightHalf = document.querySelector(".reveal-half--right");
  if (leftHalf && rightHalf) {
    const tl = gsap.timeline({
      scrollTrigger: {
        trigger: leftHalf.closest(".reveal-split"),
        start: "top 75%",
        end: "top 25%",
        scrub: 1,
      },
    });
    tl.fromTo(
      leftHalf,
      { clipPath: "inset(0 100% 0 0)" },
      { clipPath: "inset(0 0% 0 0)", ease: "power2.inOut" },
      0
    ).fromTo(
      rightHalf,
      { clipPath: "inset(0 0 0 100%)" },
      { clipPath: "inset(0 0 0 0%)", ease: "power2.inOut" },
      0
    );
  }

  // ── Diagonal — polygon from corner ──
  const diagEl = document.querySelector(".reveal--diagonal");
  if (diagEl) {
    gsap.fromTo(
      diagEl,
      { clipPath: "polygon(0 0, 0 0, 0 100%, 0 100%)" },
      {
        clipPath: "polygon(0 0, 100% 0, 100% 100%, 0 100%)",
        ease: "power3.inOut",
        scrollTrigger: { trigger: diagEl, start: "top 78%", end: "top 20%", scrub: 1.5 },
      }
    );
  }
})();

<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Clip-path Reveal</title>
  <link rel="stylesheet" href="style.css" />
</head>
<body>
  <div class="hero">
    <p class="hero-label">Scroll to reveal</p>
    <div class="hero-arrow">↓</div>
  </div>

  <!-- Wipe from left -->
  <section class="reveal-section">
    <div class="reveal-block reveal--left">
      <div class="reveal-inner">
        <span class="reveal-tag">Wipe left</span>
        <h2>Reveal from<br>the right edge</h2>
        <p>Content sweeps in as the clip-path inset collapses.</p>
      </div>
    </div>
  </section>

  <!-- Wipe from bottom -->
  <section class="reveal-section">
    <div class="reveal-block reveal--bottom">
      <div class="reveal-inner">
        <span class="reveal-tag">Wipe up</span>
        <h2>Content rises<br>from below</h2>
        <p>The bottom inset animates from 100% to 0% on scrub.</p>
      </div>
    </div>
  </section>

  <!-- Split reveal -->
  <section class="reveal-section">
    <div class="reveal-split">
      <div class="reveal-half reveal-half--left">
        <div class="reveal-inner">
          <h2>Split</h2>
        </div>
      </div>
      <div class="reveal-half reveal-half--right">
        <div class="reveal-inner">
          <h2>Reveal</h2>
        </div>
      </div>
    </div>
  </section>

  <!-- Diagonal reveal -->
  <section class="reveal-section">
    <div class="reveal-block reveal--diagonal">
      <div class="reveal-inner">
        <span class="reveal-tag">Diagonal</span>
        <h2>Polygon clip<br>from corner</h2>
        <p>clip-path: polygon() animates from a triangle to full rect.</p>
      </div>
    </div>
  </section>

  <script src="https://cdn.jsdelivr.net/npm/gsap@3.12.5/dist/gsap.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/gsap@3.12.5/dist/ScrollTrigger.min.js"></script>
  <script src="script.js"></script>
</body>
</html>

Clip-path Reveal on Scroll

Elements that wipe into view using clip-path animated by GSAP ScrollTrigger. Supports multiple wipe directions — left, right, top, bottom — and a diagonal reveal variant.

How it works

clip-path: inset() defines a rectangular clip mask with four inset values (top, right, bottom, left). Animating one value from 100% to 0% creates the wipe:

// Wipe from left
gsap.fromTo(el,
  { clipPath: "inset(0 100% 0 0)" },
  { clipPath: "inset(0 0% 0 0)",
    ease: "power2.inOut",
    scrollTrigger: { trigger: el, start: "top 80%", end: "top 30%", scrub: 1 }
  }
);

Variants included

Wipe left — content sweeps in from the right
Wipe up — content rises from the bottom
Diagonal — polygon() clip from corner to corner
Split — two halves reveal from center outward