majiayu000 Animation Techniques
Decision-tree routing for animation pattern selection
Invocation Triggers
Invoke this skill when:
- User mentions "animation", "transition", "morph", "effect"
- Implementing UI state changes with visual feedback
- Choosing between animation libraries (motion.dev vs anime.js vs CSS)
- Designing multi-phase or orchestrated animations
- Text-based animations or character effects
Questionnaire: Animation Type Selection
Q1: What is being animated?
├─[A] Text/Characters → Q2
├─[B] Layout/Position → Q4
├─[C] Color/Opacity → Q5
├─[D] Shape/SVG → Q6
└─[E] Complex orchestration → Q7
Q2: Text animation type?
├─[A] Entrance/Exit → Use motion.dev AnimatePresence
├─[B] Character-by-character → Q3
├─[C] Typewriter effect → Use anime.js irregular playback
└─[D] Content change (A→B) → TEXT MORPH TECHNIQUE
└─► Ref: techniques/text-morph-animation.md
Q3: Character animation complexity?
├─[A] Simple stagger (fade in/out) → motion.dev + staggerChildren
├─[B] Position scramble → anime.js splitText + stagger
├─[C] Multi-phase morph → TEXT MORPH TECHNIQUE
└─[D] Continuous loop → anime.js timeline + loop:true
Q4: Layout animation type?
├─[A] Enter/Exit presence → motion.dev AnimatePresence
├─[B] Shared element → motion.dev layoutId
├─[C] Reorder list → motion.dev Reorder
├─[D] Staggered grid → anime.js stagger({ grid: [x,y] })
└─[E] Physics-based → motion.dev spring transition
Q5: Color/Opacity animation?
├─[A] Simple fade → CSS transition (prefer)
├─[B] Color interpolation → motion.dev (handles color spaces)
├─[C] Gradient animation → anime.js (better gradient support)
└─[D] Filter effects → motion.dev filter prop
Q6: Shape/SVG animation?
├─[A] Path morphing → anime.js SVG module
├─[B] Draw/stroke → anime.js strokeDashoffset
├─[C] Simple transform → motion.dev
└─[D] Complex path → Consider GSAP or anime.js
Q7: Complex orchestration?
├─[A] Sequential phases → anime.js createTimeline
├─[B] Parallel + stagger → anime.js timeline.add(..., offset)
├─[C] React-coordinated → motion.dev variants + staggerChildren
└─[D] Imperative control → anime.js (better control API)
Decision Tree: Library Selection
┌─────────────────────────────────┐
│ ANIMATION REQUIREMENT │
└───────────────┬─────────────────┘
│
┌───────────────────────┼───────────────────────┐
│ │ │
▼ ▼ ▼
┌───────────────┐ ┌───────────────┐ ┌───────────────┐
│ React State │ │ DOM Direct │ │ Complex │
│ Driven │ │ Manipulation │ │ Orchestration │
└───────┬───────┘ └───────┬───────┘ └───────┬───────┘
│ │ │
▼ ▼ ▼
┌───────────────┐ ┌───────────────┐ ┌───────────────┐
│ motion.dev │ │ anime.js v4 │ │ anime.js v4 │
│ (motion/react)│ │ or CSS │ │ timeline │
└───────────────┘ └───────────────┘ └───────────────┘
│ │ │
▼ ▼ ▼
┌───────────────────────────────────────────────────────────┐
│ COMPLEXITY CHECK │
└───────────────────────────────────────────────────────────┘
│ │ │
┌───────┴───────┐ ┌───────┴───────┐ ┌───────┴───────┐
│ Simple │ │ Medium │ │ High │
│ (1-2 props) │ │ (3-5 props) │ │ (6+ props or │
│ │ │ │ │ multi-phase) │
└───────┬───────┘ └───────┬───────┘ └───────┬───────┘
│ │ │
▼ ▼ ▼
┌───────────────┐ ┌───────────────┐ ┌───────────────┐
│ CSS transition│ │ motion.dev │ │ anime.js │
│ (if possible) │ │ (default) │ │ createTimeline│
└───────────────┘ └───────────────┘ └───────────────┘
Decision Tree: Text Animation
┌─────────────────────────────────┐
│ TEXT ANIMATION NEED │
└───────────────┬─────────────────┘
│
┌───────────────┼───────────────┐
│ │ │
▼ ▼ ▼
┌───────────┐ ┌───────────┐ ┌───────────┐
│ Entrance/ │ │ Content │ │ Continuous│
│ Exit │ │ Change │ │ Effect │
└─────┬─────┘ └─────┬─────┘ └─────┬─────┘
│ │ │
┌───────┴───────┐ │ ┌───────┴───────┐
│ │ │ │ │
▼ ▼ │ ▼ ▼
┌───────────┐ ┌───────────┐ │ ┌───────────┐ ┌───────────┐
│ Whole │ │ Per-char │ │ │ Typewriter│ │ Scramble/ │
│ element │ │ stagger │ │ │ reveal │ │ glitch │
└─────┬─────┘ └─────┬─────┘ │ └─────┬─────┘ └─────┬─────┘
│ │ │ │ │
▼ ▼ │ ▼ ▼
┌───────────┐ ┌───────────┐ │ ┌───────────┐ ┌───────────┐
│motion.dev │ │ anime.js │ │ │ anime.js │ │ anime.js │
│Animate │ │ splitText │ │ │ irregular │ │ timeline │
│Presence │ │ + stagger │ │ │ playback │ │ + random │
└───────────┘ └───────────┘ │ └───────────┘ └───────────┘
│
▼
┌─────────────────────────────────┐
│ SAME LENGTH OR DIFFERENT? │
└───────────────┬─────────────────┘
│
┌───────────────┼───────────────┐
│ │ │
▼ ▼ ▼
┌───────────┐ ┌───────────┐ ┌───────────┐
│ Same │ │ Growing │ │ Shrinking │
│ length │ │ (+chars) │ │ (-chars) │
└─────┬─────┘ └─────┬─────┘ └─────┬─────┘
│ │ │
└───────────────┼───────────────┘
│
▼
┌─────────────────────────────────┐
│ TEXT MORPH TECHNIQUE │
│ │
│ Phase 1: Fade out unmapped │
│ Phase 2: Compress remaining │
│ Phase 3: Scramble to target │
│ Phase 4: Fade in new chars │
│ │
│ ► techniques/text-morph- │
│ animation.md │
└─────────────────────────────────┘
Quick Reference: Library Capabilities
| Capability | motion.dev | anime.js v4 | CSS |
|---|---|---|---|
| React integration | Native | Manual | Native |
| AnimatePresence | ✓ | - | - |
| Layout animations | ✓ | - | - |
| Shared elements | ✓ | - | - |
| Text splitting | - | ✓ splitText | - |
| Timeline | - | ✓ createTimeline | - |
| Grid stagger | - | ✓ stagger({grid}) | - |
| SVG morphing | - | ✓ | - |
| Spring physics | ✓ | ✓ | - |
| Reduced motion | ✓ useReducedMotion | Manual | ✓ prefers-reduced-motion |
Technique Index
| Technique | When to Use | Reference |
|---|---|---|
| Text Morph | Transitioning between different text content | techniques/text-morph-animation.md |
| Stagger Grid | Animating grid items with wave effect | anime.js docs |
| Layout Shared | Elements moving between containers | motion.dev layoutId |
| Presence | Elements entering/exiting DOM | motion.dev AnimatePresence |
Full catalog: See techniques/INDEX.md for all documented techniques.
Integration Checklist
When implementing animations:
- Check
prefers-reduced-motion- skip or simplify - Consider mobile performance - reduce particle counts
- Use hardware acceleration -
transformovertop/left - Clean up on unmount - cancel pending animations
- Test with DevTools → Performance → 6x slowdown
Related
- Navigation:
AGENTS.md(agent instructions for this skill) - Techniques:
techniques/INDEX.md(full technique catalog) - Beads: tmnl-ypwpb (Text Morph feature)
- Skills:
/effect-atom-integration(for animation state) - Submodules:
../../submodules/anime/(anime.js v4 source)