# Hero ASCII Schlieren

> A full-screen animated ASCII hero background that renders an optical schlieren effect — a rising thermal plume and shear layer drawn as sparse bright/dark bands on a canvas, with the pointer rotating the knife edge to reveal different gradients.

- Author: [nikolas-sapa](https://21st.dev/@nikolas-sapa)
- Library: @ns-ui
- License: MIT
- Tags: Cursor, Background, Canvas, Hero, Ascii
- Live preview: https://21st.dev/@nikolas-sapa/components/hero-ascii-schlieren

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/nikolas-sapa/hero-ascii-schlieren?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/cursor.md