Lit by facing
A clear rim lit by two fixed lights, a key and a half-strength fill, each point by how squarely its normal faces them.
Drawn while the skill was being made, for a long article on rendering frosted panes in WebGL.
Install
npm install anatomy-figures
In your code
page.tsx
import { LitByFacing } from "anatomy-figures"; <LitByFacing theme="light" />
Or load this figure on its own, so the others never download:
page.tsx
import LitByFacing from "anatomy-figures/lit-by-facing";
Theme it
Early examples keep their own light and dark palettes: theme picks one, and --anatomy-card sets the ground.
page.tsx
<LitByFacing theme="dark" tokens={{ "--anatomy-card": "#000000" }} />
Without React
It still draws with React inside, so install react and react-dom next to it.
index.html
import { define } from "anatomy-figures/element/lit-by-facing"; define(); <anatomy-lit-by-facing theme="light"></anatomy-lit-by-facing>

