# SummerLouver

> Animated WebGL shader background in the Paper Texture style. Default variant. Generated by the 21st.dev Shader Builder. Adapted from Paper Shaders under Apache-2.0. 4-color palette (#FFFFFF, #9FADBC, #D8D4CA, #777168). Features: cursor-reactive (swirl). A drop-in, zero-dependency React component for hero sections and animated gradient/noise backgrounds.

- Author: [Yi](https://21st.dev/@yiranwangkk)
- License: apache-2.0
- Tags: Shader, WebGL, Hero Background, Paper, Animation
- Live preview: https://21st.dev/@yiranwangkk/components/summerlouver

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/yiranwangkk/summerlouver?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/shader.md