∞ forever components

Cursor & Pointer

Gooey Trail

22 pink blobs chain-follow the pointer via spring physics and merge into liquid goo through an SVG feColorMatrix filter; auto-demos a Lissajous path when idle.

css+canvasmedium complexitymoderate motionpointer

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When to use it

Creative portfolio heroes, dark-mode landing pages, or any context where a custom cursor with viscous personality adds delight.

When not to

Utility UIs where the custom cursor (cursor:none) would confuse users, or low-end mobile where canvas+SVG filter stacks strain the GPU.

Working with an AI agent

Every component ships agent-ready metadata. An example instruction for this one:

Change blob color from #ff5ca8 to electric blue (#00c8ff), increase chain length from N=22 to N=30, and widen the head radius multiplier from 0.052 to 0.07. Theme: dark tokens live in :root, the light variant in :root[data-theme="light"]; ?theme=light or a {type:'forever:theme'} postMessage switches at runtime.

Safe to edit

  • blob color (fillStyle '#ff5ca8')
  • chain length (N=22)
  • head/tail radius curve (base*0.052*k*k)
  • spring follow speed (f=0.34-i*0.006)
  • SVG goo blur amount (stdDeviation=7)
  • idle demo path (demoPoint Lissajous params)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • SVG goo filter (feGaussianBlur + feColorMatrix)
  • IIFE wrapper
  • reduced-motion static draw() fallback
  • visibilitychange pause guard
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • cursor:none hides the system cursor globally — must be scoped carefully in multi-region layouts
  • SVG filter applied to canvas via CSS may render incorrectly in some older Safari versions
  • No touch fallback — pointermove on touch fires but demo auto-path does not re-engage cleanly on lift

gooeytrailpointercanvassvg-filtermetaballcursor

More Cursor & Pointer components

  • Magnetic DotGlowing pink dot springs to the pointer; a laggy outer ring squashes along its travel, joined by a fading tendril. Self-demos via Lissajous path when idle.
  • Spotlight MaskRadial spotlight follows the pointer, punching through a dark veil to reveal a pink dot grid and glowing word. Auto-demos via Lissajous path when idle.
  • Elastic RingGlowing pink ring trails the pointer with damped-spring physics, stretching along velocity and squashing across it. Auto-demos on a Lissajous path when idle.
  • Trail CometHot-pink comet spring-follows the cursor, dragging a tapering additive trail that lengthens with speed and flings spark particles. Idle: Lissajous demo loop.
  • Ripple FieldGrid of dots ripples outward in expanding pink rings as the pointer moves; dots displace radially along each wavefront. Lissajous auto-demo when idle.