> ## Documentation Index
> Fetch the complete documentation index at: https://hyperframes-feat-video-primitives-batch.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Gallery Tunnel

> An infinite corridor of panels: a square tunnel receding to a vanishing point, its floor, ceiling and walls tiled with saturated colour slabs and caller-supplied images that swell toward camera and exit past you, the far end dissolving into fog.

<video className="w-full aspect-video rounded-xl object-cover bg-zinc-100 dark:bg-zinc-800" src="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/gallery-tunnel.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/gallery-tunnel.png" autoPlay muted loop playsInline />

## Install

```bash Terminal theme={null}
npx hyperframes add gallery-tunnel
```

That writes one file: `compositions/gallery-tunnel.html`.

## Add it to your video

It runs for 12 seconds at 1920×1080. Paste this into your composition:

```html index.html theme={null}
<div
  data-composition-id="gallery-tunnel"
  data-composition-src="compositions/gallery-tunnel.html"
  data-start="0"
  data-duration="12"
  data-track-index="1"
  data-width="1920"
  data-height="1080"
></div>
```

Move it in time with `data-start`. Put it on a different timeline row with
`data-track-index`. See [data attributes](/concepts/data-attributes) for the rest.

## Change how it looks

Set these CSS variables on the block:

* `--images` — Image slots: comma-separated paths, tiled into the panels (e.g. assets/shot-1.png,assets/shot-2.png). Defaults to \`\`.
* `--imagemix` — Image share of filled slots (0 = all colour, 1 = all images). Defaults to `0.5`.
* `--speed` — Flight speed (segments per second). Defaults to `3`.
* `--palette` — Slab palette: comma-separated hex colours. Defaults to `#FF6A00,#AB54F7,#EA3737,#0072E3,#00AA3C,#FFB200`.
* `--grid` — Grid density: slots per wall face per axis (2 = 4 per face, 16 per segment). Defaults to `2`.
* `--fill` — Slot fill rate. Defaults to `0.5`.
* `--fog` — Fog distance in segments: depth at which the corridor reaches pure backdrop. Defaults to `14.25`.
* `--edgecolor` — Edge line colour. Defaults to `#B0B0B0`.
* `--edgeopacity` — Edge line opacity. Defaults to `0.5`.
* `--backdrop` — Backdrop and fog colour. Defaults to `#000000`.

Tagged `webgl` `3d` `background` `showcase` `depth` `loop`.

## Related topics

* [Browse the complete Catalog](/catalog)
* [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
* [Build a richer composition](/go-further)