Deliberate 1200 2000ms

dylantarre/animation-principles/skills/10-by-time-scale/deliberate-1200-2000ms

by dylantarre83597134ba8fNo license99 starsListed Oct 8, 2026Updated Oct 8, 2026Repository updated 9 months ago

Use when building slow intentional animations between 1200-2000ms - app intros, loading sequences, storytelling moments that create emotional resonance

Instructions onlyDesign & Creative
AI-generated overview

Guides creation of slow, deliberate UI animations lasting 1200-2000ms, such as app intros and storytelling moments.

What it does
This skill provides guidance for designing intentional animations in the 1200-2000ms range, framing them as narrative experiences rather than ordinary interface transitions. It applies Disney animation principles such as squash and stretch, anticipation, staging, and follow through to motion design, and supplies CSS easing curves and a keyframe implementation pattern for an app launch sequence. It also lists suitable use cases and cautions about skip controls, blocking critical paths, repeat visits, and motion sensitivity.
When to use it
Use it when building slow, emotionally resonant animations between 1200 and 2000ms, such as splash screens, brand moments, tutorial narratives, achievement celebrations, or story-driven onboarding. It is intended for moments where the animation itself is the content rather than a functional transition.
Requirements
No scripts or special tooling are required; it is instructions only. Applying the guidance assumes a front-end environment that supports CSS animations and transitions.

Deliberate Animations (1200-2000ms)

At 1200-2000ms, you're creating experiences, not interfaces. This duration is for moments of genuine storytelling where animation itself is the content.

Disney Principles at Deliberate Speed

Full Narrative Expression

Squash & Stretch: Character-defining - 30-40% deformation creates personality. Objects become characters.

Anticipation: Full dramatic preparation - 300-400ms wind-up creates tension and expectation.

Staging: Scene direction - think cinematography. Establish shot, then detail. Clear narrative flow.

Straight Ahead/Pose to Pose: Pose to pose mandatory - 6-10 key poses define the narrative arc.

Follow Through: Extended settling - 300-500ms of secondary motion after primary completes.

Slow In/Slow Out: Narrative pacing - ease curves tell emotional stories. Sharp starts mean urgency, soft ends mean resolution.

Arcs: Orchestrated paths - motion paths are designed, not default. Each element's trajectory contributes to composition.

Secondary Action: Full ecosystem - primary, secondary, tertiary, ambient all working together.

Timing: 72-120 frames at 60fps. Animation-quality frame counts.

Exaggeration: Emotional amplification - push for feeling, not just movement.

Solid Drawing: Dimensional storytelling - parallax, depth, perspective shifts create space.

Appeal: Deep emotional engagement - users feel something during these animations.

Easing Recommendations

css
/* Narrative arc - beginning, middle, end */animation-timing-function: cubic-bezier(0.34, 0, 0.14, 1);
/* Graceful, considered motion */transition: all 1500ms cubic-bezier(0.16, 1, 0.3, 1);
/* Building momentum */transition: all 1800ms cubic-bezier(0.65, 0, 0.35, 1);
/* Elastic storytelling */transition: transform 1600ms cubic-bezier(0.68, -0.6, 0.32, 1.6);

Best Use Cases

  • App splash/launch sequences
  • Brand moments
  • Tutorial narratives
  • Achievement celebrations
  • Milestone animations
  • Emotional state changes (error to success)
  • Story-driven onboarding
  • Feature announcements

Implementation Pattern

css
@keyframes appLaunch {  0% {    opacity: 0;    transform: scale(0.6) translateY(50px);    filter: blur(10px);  }  30% {    opacity: 1;    filter: blur(5px);  }  60% {    transform: scale(1.02) translateY(-10px);    filter: blur(0);  }  80% {    transform: scale(0.99) translateY(5px);  }  100% {    transform: scale(1) translateY(0);  }}
.app-launch {  animation: appLaunch 1800ms cubic-bezier(0.16, 1, 0.3, 1) forwards;}

Critical Considerations

  • Users MUST be able to skip/dismiss
  • Never block critical paths
  • Avoid on repeat visits (detect returning users)
  • Must add genuine value, not decoration
  • Test for motion sensitivity (prefer reduced motion)

Key Insight

Deliberate animations are brand investments. They don't just show what's happening - they make users feel something. Budget for design, iteration, and testing. These moments define perceived quality.

Source and attribution

Source:dylantarre/animation-principlesinskills/10-by-time-scale/deliberate-1200-2000msat commit8359713

License: No license

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