oversized-cursor

par heygen-com

Technique de curseur macOS surdimensionné dans le style maison pour les vidéos de lancement HyperFrames. À charger dès qu’une scène implique des curseurs ou une action guidée par le pointeur, au démarrage d’une scène UI, lors du déclenchement d’une séquence de morphing/transition/saisie avec un clic, ou lorsqu’une scène semble statique, morte ou figée et nécessite une source de mouvement économique et à fort rendement pour porter le regard du spectateur et le sortir de cet état figé. Couvre la taille et l’apparence du curseur (y compris les curseurs à motif de marque), la règle d’entrée hors écran, le ciblage de la pointe et le clic...

npx skills add https://github.com/heygen-com/hyperframes --skill oversized-cursor

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Oversized Cursor — the eye-carrier

A deliberately oversized macOS-style pointer that travels the frame as a visible protagonist: it enters from off-screen, walks the viewer's eye to the next point of interest, clicks to cause the next thing that happens, and leaves. Production-proven across multiple launch films.

Why it exists. Big cursor movement is one of the cheapest high-yield motion sources in a launch video: one element, transform-only tweens, and it (1) brings the eye across the screen on scenes that would otherwise read as dead, (2) gives causal ignition to morphs/transitions ("the click did that"), and (3) segments the eye out of a stale state when kicking off a new scene or a complex animation sequence. Bigger is better — an actual-size cursor disappears at video scale.

Size & look (house convention)

Full-frame scenes: 7cqw (≈134px at 1920). In-mock / small-frame variants: 4.6–5.5cqw. Never smaller.
One SVG arrow geometry everywhere. Two proven fills — white body + black stroke, or black body (#1c1c1c) + white stroke (1.4px). Pick per scene contrast, keep it constant per film.
Brand-motif cursors (the power play). The macOS arrow is the DEFAULT, not a mandate. When the subject brand has a recognizable cursor identity — a collaborative design tool's colored multiplayer arrow with a name tag (Figma-style), a creative suite's precision crosshair, a distinctive product pointer — use THAT cursor instead: instantly legible brand language for anyone who knows the product. Same laws apply unchanged (oversized scale, physical entry/exit, tip-targeting, click-ignition), and a name-tag variant travels as one rigid unit (tag trailing the arrow). Reach for it only when the motif is genuinely referenceable; a cursor nobody recognizes is just a weird arrow — default back to macOS.
filter: drop-shadow(0 4px 6px rgba(0,0,0,.3)), pointer-events: none, z-index above all scene content, will-change: transform.

#root .cursor {
  position: absolute;
  left: 48%;
  top: 115%; /* off-screen below — the resting pose IS off-screen */
  width: 7cqw;
  height: 7cqw;
  z-index: 20;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
  pointer-events: none;
  will-change: transform;
}

Entry law — physical, never revealed

The cursor always enters from off-screen (canonical: from below, top:115–120%) and travels to its first target in one decelerating glide. It must feel like it entered the room. Never opacity-fade it in at a resting position, never mask-reveal it — that reads as a glitch (a real, repeatedly observed failure mode).

Default path: straight up the y-axis to the target — no fragmented diagonals. A diagonal is fine when it IS the story (entering toward an off-axis target), but it is one continuous vector either way.
duration: 0.4–0.92s, ease: power3.out, immediateRender: false on the fromTo.

tl.fromTo(
  cursor,
  { left: "48.6%", top: "115%" },
  { left: "48.6%", top: "55%", duration: 0.85, ease: "power3.out", immediateRender: false },
  0.25,
);

Tip-targeting & the click tap

The hot-spot is the arrow TIP, not the box center. Land the tip on the target's center, and pivot all press scaling on the tip: transformOrigin: '21% 14%' (for the house arrow path in a 24-unit viewBox).

Click = asymmetric compress/expand (1:2 ratio reads as a real tap):

tl.to(cursor, { scale: 0.84, duration: 0.1, ease: "power2.in", transformOrigin: "21% 14%" }, t);
tl.to(
  cursor,
  { scale: 1, duration: 0.22, ease: "power2.out", transformOrigin: "21% 14%" },
  t + 0.1,
);

The target's reaction is a separate, parallel tween (button: scale: 0.94 + press color/shadow, starting at the same t). Cursor-only taps (e.g. focusing a text input) get NO target reaction. Pair with cursor-click-ripple / press-release-spring for the target side.

The click IGNITES the next beat

Never let a morph, typing run, window transform, or scene-defining animation simply start. Park the cursor on the trigger and let the click cause it, same-frame:

click ▸ menu/submenu cascade, toggle flip
click ▸ typing kickoff into an input
click ▸ composer morph-down / window shrink
click ▸ logo ignition / flight launch
click ▸ play-state flip + UI-life wake in a product mock

During long beats it doesn't own (typing, narration), the cursor drifts aside (0.5–0.9s, power2.out) — never sits frozen on top of the action, never wobbles idly.

Exit law & cross-scene handoff

Two sanctioned exits — both physical, never an opacity fade in place:

Leave the frame: accelerate off the nearest edge with power2.in (left:'118%', left:'-12%', or top:'116%'), 0.5–0.7s.
Cut-the-curve handoff: in the final ~0.3s before a hard cut, the cursor starts accelerating (power2.in) toward the NEXT scene's first click point, covering the first ~1/3 of that path; the next composition gsap.sets the cursor at the handoff pose and continues with power2.out at matched velocity. The cursor itself becomes the carrier element that stitches the seam:

// scene A, last 0.3s — start the journey:
tl.to(cursor, { left: "40.7%", top: "63.7%", duration: 0.3, ease: "power2.in" }, CUT - 0.3);
// scene B, t=0 — finish it at matched velocity:
gsap.set(cursorB, { left: "40.7%", top: "63.7%" });
tl.to(cursorB, { left: "22%", top: "45%", duration: 0.6, ease: "power2.out" }, 0);