> ## Documentation Index
> Fetch the complete documentation index at: /llms.txt
> Use this file to discover all available pages before exploring further.

# On-Screen Display Effect

> Grid, scanline, vignette, and sheen overlay plus a 3D-warp wrapper class that makes footage read as if playing on a physical display

# On-Screen Display Effect

Grid, scanline, vignette, and sheen overlay plus a 3D-warp wrapper class that makes footage read as if playing on a physical display

**On-Screen Display Effect**

```html yt-screen-warp.html
<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
    <style>
      *,
      *::before,
      *::after {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }
      body {
        background: transparent;
        overflow: hidden;
      }
      /* ---- yt-screen-warp ---------------------------------------------------
         Make footage read as a physical display: add .yt-screen-warp3d to the
         media WRAPPER (subtle perspective), and place .yt-screen-fx overlay
         inside it (pixel grid + scanlines + vignette + sheen). */
      .yt-screen-warp3d {
        transform: perspective(1400px) rotateY(-3.5deg) rotateX(1.6deg);
      }
      .yt-screen-fx {
        position: absolute;
        inset: 0;
        pointer-events: none;
        opacity: 0;
        background:
          /* sheen */
          linear-gradient(115deg, rgba(255, 255, 255, 0.09) 0%, transparent 30%),
          /* scanlines */
          repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.1) 0 1px, transparent 1px 3px),
          /* pixel grid */
          repeating-linear-gradient(90deg, rgba(0, 0, 0, 0.06) 0 1px, transparent 1px 4px);
        box-shadow:
          inset 0 0 90px rgba(0, 0, 0, 0.4),
          inset 0 0 8px rgba(0, 0, 0, 0.5);
      }
      /* self-preview stand-in */
      #yt-sw-wrap {
        position: absolute;
        left: 360px;
        top: 190px;
        width: 1200px;
        height: 700px;
        border-radius: 18px;
        overflow: hidden;
      }
      #yt-sw-fill {
        position: absolute;
        inset: 0;
        /* Placeholder footage: L3 of the ink over the dark ground, plus a 3px
           achromatic hatch so the plate reads as a media surface, not an empty box. */
        background:
          repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 3px),
          rgba(255, 255, 255, 0.18);
        box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: "Inter", ui-sans-serif, sans-serif;
        font-weight: 700;
        font-size: 92px;
        color: rgba(255, 255, 255, 0.93);
      }
    </style>
  </head>
  <body>
    <!-- Self-preview wrapper. WIRING: copy the two CSS classes; add
         class="yt-screen-warp3d" to your media wrapper and
         <div class="yt-screen-fx" id="yt-my-fx"></div> as its LAST child. Then:

           ytScreenOn(tl, "#yt-my-fx", 2.0);
           ytScreenOff(tl, "#yt-my-fx", 8.0);
    -->
    <div
      id="yt-sw-root"
      data-composition-id="yt-screen-warp"
      data-start="0"
      data-duration="4"
      data-width="1920"
      data-height="1080"
    >
      <div id="yt-sw-wrap" class="yt-screen-warp3d">
        <div id="yt-sw-fill">on screen</div>
        <div class="yt-screen-fx" id="yt-sw-fx"></div>
      </div>
      <div
        id="yt-sw-drv"
        class="clip"
        data-start="0"
        data-duration="4"
        data-track-index="0"
        style="position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none"
      ></div>
    </div>
    <script>
      (function () {
        window.__timelines = window.__timelines || {};

        // ---- copy these helpers into the host script ----
        window.ytScreenOn = function (tl, target, at) {
          tl.to(target, { opacity: 1, duration: 0.5, ease: "power2.out" }, at);
        };
        window.ytScreenOff = function (tl, target, at) {
          tl.to(target, { opacity: 0, duration: 0.4, ease: "power2.in" }, at);
        };

        // Self-preview timeline.
        var tl = gsap.timeline({ paused: true });
        gsap.set("#yt-sw-wrap", { opacity: 0, scale: 0.96 });
        tl.to("#yt-sw-wrap", { opacity: 1, scale: 1, duration: 0.5, ease: "power2.out" }, 0.2);
        window.ytScreenOn(tl, "#yt-sw-fx", 0.8);
        window.ytScreenOff(tl, "#yt-sw-fx", 3.1);
        tl.to("#yt-sw-wrap", { opacity: 0, duration: 0.35, ease: "power2.in" }, 3.5);
        tl.set("#yt-sw-root", { visibility: "hidden" }, 3.98);
        window.__timelines["yt-screen-warp"] = tl;
      })();
    </script>
  </body>
</html>
```

Copy npx hyperframes add yt-screen-warp to the clipboard

That writes one file: `compositions/components/yt-screen-warp.html`.

## Paste it into your composition

Open `compositions/components/yt-screen-warp.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.

{/* hf:generated-footer */}

Tagged `effect` `overlay` `texture`.

## Related topics

* [Browse the complete Catalog](/catalog.md)
* [Add assets and Catalog items in the browser editor](/studio/assets-and-blocks.md)
* [Put blocks together into one video](/concepts/compositions.md)
