# Dotted Surface

> Background of dots laid on a rolling 3D surface that recedes to a horizon. Columns converge on the vanishing point, points shrink and fog with distance, and wave crests light up in an accent color. Moving the pointer casts onto the ground and sends ripples across it. Canvas 2D, theme-aware, pauses off-screen.

- Slug: `dotted-surface`
- Category: [3D](https://assembli-rho.vercel.app/category/3d.md)
- Type: component
- Tags: 3d, background, canvas, waves, particles, hero
- npm dependencies: motion
- shadcn/ui dependencies: none
- Added: 2026-10-15
- Live preview: https://assembli-rho.vercel.app/preview/dotted-surface
- Page: https://assembli-rho.vercel.app/components/dotted-surface

## Install

One-time setup (needs a subscription):

1. Add the registry to the project's `components.json`: `{"@assembli":{"url":"https://assembli-rho.vercel.app/r/{name}.json","headers":{"Authorization":"Bearer ${ASSEMBLI_API_KEY}"}}}` (merge into `"registries"`).
2. Put an API key from https://assembli-rho.vercel.app/account in `.env.local` as `ASSEMBLI_API_KEY=asm_…`.

Then install with the shadcn CLI (writes `components/dotted-surface/dotted-surface.tsx` and installs dependencies):

```bash
npx shadcn@latest add @assembli/dotted-surface
```

Registry item JSON: https://assembli-rho.vercel.app/r/dotted-surface.json (send `Authorization: Bearer <api key>`)

## Code

> Component source needs an Assembli subscription ($12/month) and an API key sent as `Authorization: Bearer <key>`. To get one without copying anything, POST https://assembli-rho.vercel.app/api/agent/login (or call the MCP tool connect_account), show the user the link it returns, and poll https://assembli-rho.vercel.app/api/agent/token for the key. Or subscribe at https://assembli-rho.vercel.app/pricing and create a key at https://assembli-rho.vercel.app/account.