Sitewright

Portal field

Ambient particle fields: a rotating noise-shaped cloud, a resonant plate whose grains settle on nodal lines, and streams converging on a focal portal that follows the pointer.

What it is for

Behind a hero or call-to-action band (first child of a position:relative section; fills its parent).

Use it

1 · site.json
"effects": { "components": ["portal-field"] }
or on the command line
node ~/.claude/skills/sitewright/scripts/scaffold.mjs --config site.json --out ./my-site --components portal-field
2 · import it
import { PortalField } from '@/components/fx/ui';

Files

  • components/fx/ui/PortalField.tsx
  • components/fx/ui/_tu-bg-portal.ts
  • components/fx/ui/_tu-bg-kit.ts
  • components/fx/ui/_tu-bg-demo.tsx
  • components/fx/ui/_bg-c-canvas.ts
  • components/fx/ui/_t2.ts
  • ui-portal-field.css styles

Source

Original to Sitewright. MIT licensed.

Credits and licences: third-party notices.

Accessibility

  • Keyboard. Components in the kit are written to be reached and used with the keyboard. Try it: press Tab inside the preview.
  • Reduced motion. With prefers-reduced-motion on, animation settles to its finished state at once.
  • Touch. Pointer-follow effects are skipped on touch screens; controls stay finger-sized.