# Water Caustic

> An animated, tileable water caustic lighting effect rendered with a WebGL shader for glowing underwater ripple backgrounds.

- Author: [chamaac](https://21st.dev/@chamaac)
- License: no-license
- Tags: Background, WebGL, Water, Shader, Caustic
- npm dependencies: clsx, three, tailwind-merge, @react-three/fiber
- Live preview: https://21st.dev/@chamaac/components/water-caustic

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/chamaac/water-caustic?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/background.md