# Radiance Cascades

> Draw light with the pointer and watch it bounce: a jump-flooded distance field feeds six radiance cascades — base 4, geometric intervals, linear RGBA16F — merged top-down with visibility alpha into 2D global illumination.

- Author: [VGPU](https://21st.dev/@vgpu)
- Library: VGPU
- License: MIT
- Tags: Shader
- Live preview: https://21st.dev/@vgpu/components/radiance-cascades

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/vgpu/radiance-cascades?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