Grid Pixelate Wipe

<!--
  Grid Pixelate Wipe — transition effect.

  Usage: place this overlay in your composition. To transition between
  scenes, animate .grid-cell scale from 0→1 (cover) then 1→0 (reveal)
  using GSAP stagger with a "from" pattern.

  Customize:
  - COLS / ROWS: grid density (default 16×9), edit in the script below
  - --grid-color: cell fill color (default black)
  - Stagger "from": "center" for radial, "edges" for inward, "random" for scatter
-->

<div
  id="grid-pixelate-overlay"
  style="
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
    display: grid;
  "
></div>

<style>
  #grid-pixelate-overlay {
    --grid-color: black;
  }

  #grid-pixelate-overlay .grid-cell {
    background: var(--grid-color);
    transform: scale(0);
    transform-origin: center center;
  }
</style>

<script>
  (function () {
    const COLS = 16;
    const ROWS = 9;
    const overlay = document.getElementById("grid-pixelate-overlay");
    if (!overlay) return;

    overlay.style.gridTemplateColumns = `repeat(${COLS}, 1fr)`;
    overlay.style.gridTemplateRows = `repeat(${ROWS}, 1fr)`;

    for (let i = 0; i < COLS * ROWS; i++) {
      const cell = document.createElement("div");
      cell.className = "grid-cell";
      overlay.appendChild(cell);
    }
  })();
</script>

<!--
  Timeline integration example:

  // Cover screen with grid (transition out of scene A)
  tl.to("#grid-pixelate-overlay .grid-cell", {
    scale: 1,
    duration: 0.6,
    stagger: { amount: 0.6, from: "center" },
    ease: "power2.inOut",
  }, 3.0);

  // Swap scene content at midpoint
  tl.set("#scene-a", { opacity: 0 }, 3.6);
  tl.set("#scene-b", { opacity: 1 }, 3.6);

  // Reveal scene B by removing grid
  tl.to("#grid-pixelate-overlay .grid-cell", {
    scale: 0,
    duration: 0.6,
    stagger: { amount: 0.6, from: "edges" },
    ease: "power2.inOut",
  }, 3.6);
-->