sticker-tilt-wobble

name	sticker-tilt-wobble
description	motion-graphic primitive — continuous subtle tilt oscillation on a sticker / chip / label after it has popped in. period ~1s, amplitude ±1°. one of the "alive" cues that separates pro motion graphics from amateur. used in sp-e chaos-card pack as the default post-pop behavior on every sticker.

sticker-tilt-wobble

Purpose

After a sticker / chip pops in, continuously rotate it back and forth by ±1° on a slow cycle. The wobble is small enough to be subliminal but visible enough to feel "alive". Without it, stickers feel pasted; with it, they feel handled.

Params

{
  "amplitude_deg": 1.0,
  "period_frames": 30,                   // ~1s at 30fps
  "start_frame_after_pop": 8,
  "wave_kind": "sine",                   // sine | triangle | noise
  "phase_offset_per_sticker": true       // each sticker has slight phase shift to decorrelate
}

Behaviour

Apply transform: rotate(<baked_tilt + amplitude_deg * sin(2π * frame / period_frames + phase)>) to the sticker.

The baked tilt is from the sticker's static rotation (from sticker-chip-pop or card-tilt-drift); the wobble adds an oscillation around that center.

Style pack overrides

• SP-E (chaos-card) — default for every sticker.
• SP-B (pinterest-saturated) — occasional, lighter amplitude.

Quality Checks

• Amplitude small (≤2°). More feels nervous.
• Period not too fast (≥24 frames) and not too slow (≤90 frames).
• Phase offset per sticker so multiple stickers don't oscillate in sync.
• Starts AFTER pop-in completes.

Failure Modes

• Wobble looks nervous. Amplitude too high; reduce to ±0.5°.
• Wobble looks robotic. All stickers in sync. Add phase offset.
• Wobble fights the pop-in. Start frame too early. Delay to after settle.