# Glass Bell

> Lumen pack asset: a notification bell in frosted, halftone-printed glass with a glass ball clapper. Every few seconds it rings: a damped swing about its hanger, with the clapper lagging behind and swinging wider. Raymarched in WebGL with refraction and bevel highlights. Five tints or your own colors. Zero dependencies; any number share one WebGL context.

- Slug: `lumen-bell`
- Category: [Asset packs](https://www.assembli.design/category/asset-packs.md)
- Subcategory: [Lumen](https://www.assembli.design/category/asset-packs/lumen.md) (`lumen`)
- Type: component
- Tags: 3d, webgl, raymarching, asset, glass, icon, bell, notification, alert, ring
- npm dependencies: none
- shadcn/ui dependencies: none
- Added: 2026-10-21
- Live preview: https://www.assembli.design/preview/lumen-bell
- Page: https://www.assembli.design/components/lumen-bell

## Install

One-time setup (needs a subscription):

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

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

```bash
npx shadcn@latest add @assembli/lumen-bell
```

Registry item JSON: https://www.assembli.design/r/lumen-bell.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://www.assembli.design/api/agent/login (or call the MCP tool connect_account), show the user the link it returns, and poll https://www.assembli.design/api/agent/token for the key. Or subscribe at https://www.assembli.design/pricing and create a key at https://www.assembli.design/account.