# Glass Eye

> Lumen pack asset: an eye in frosted, halftone-printed glass. The almond lid has a hole cut through it and a thick pupil disc floats inside; it wanders, blinks every few seconds and turns to watch your cursor. Raymarched in WebGL with refraction, so you see the far edges through the glass. Five tints or your own colors. Zero dependencies; any number share one WebGL context.

- Slug: `lumen-eye`
- 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, eye, visibility, preview
- npm dependencies: none
- shadcn/ui dependencies: none
- Added: 2026-10-21
- Live preview: https://www.assembli.design/preview/lumen-eye
- Page: https://www.assembli.design/components/lumen-eye

## 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-eye/lumen-eye.tsx` and installs dependencies):

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

Registry item JSON: https://www.assembli.design/r/lumen-eye.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.