Sync all skills and memories 2026-04-14 07:27

skills/creative/manim-video/references/scene-planning.md

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+# Scene Planning Reference
+
+## Narrative Arc Structures
+
+### Discovery Arc (most common)
+1. Hook -- pose a question or surprising result
+2. Intuition -- build visual understanding
+3. Formalize -- introduce the equation/algorithm
+4. Reveal -- the "aha moment"
+5. Extend -- implications or generalizations
+
+### Problem-Solution Arc
+1. Problem -- what's broken
+2. Failed attempt -- obvious approach fails
+3. Key insight -- the idea that works
+4. Solution -- implement it
+5. Result -- show improvement
+
+### Comparison Arc
+1. Setup -- introduce two approaches
+2. Approach A -- how it works
+3. Approach B -- how it works
+4. Contrast -- differences
+5. Verdict -- which is better
+
+### Build-Up Arc (architecture/systems)
+1. Component A -- first piece
+2. Component B -- second piece
+3. Connection -- how they interact
+4. Scale -- add more pieces
+5. Full picture -- zoom out
+
+## Scene Transitions
+
+### Clean Break (default)
+```python
+self.play(FadeOut(Group(*self.mobjects)), run_time=0.5)
+self.wait(0.3)
+```
+
+### Carry-Forward
+Keep one element, fade the rest. Next scene starts with it still on screen.
+
+### Transform Bridge
+End scene with a shape, start next scene by transforming it.
+
+## Cross-Scene Consistency
+
+```python
+# Shared constants at file top
+BG = "#1C1C1C"
+PRIMARY = "#58C4DD"
+SECONDARY = "#83C167"
+ACCENT = "#FFFF00"
+TITLE_SIZE = 48
+BODY_SIZE = 30
+LABEL_SIZE = 24
+FAST = 0.8; NORMAL = 1.5; SLOW = 2.5
+```
+
+## Scene Checklist
+
+- [ ] Background color set
+- [ ] Subcaptions on every animation
+- [ ] `self.wait()` after every reveal
+- [ ] Text buff >= 0.5 for edge positioning
+- [ ] No text overlap
+- [ ] Color constants used (not hardcoded)
+- [ ] Opacity layering applied
+- [ ] Clean exit at scene end
+- [ ] No more than 5-6 elements visible at once
+
+## Duration Estimation
+
+| Content | Duration |
+|---------|----------|
+| Title card | 3-5s |
+| Concept introduction | 10-20s |
+| Equation reveal | 15-25s |
+| Algorithm step | 5-10s |
+| Data comparison | 10-15s |
+| "Aha moment" | 15-30s |
+| Conclusion | 5-10s |
+
+## Planning Template
+
+```markdown
+# [Video Title]
+
+## Overview
+- **Topic**: [Core concept]
+- **Hook**: [Opening question]
+- **Aha moment**: [Key insight]
+- **Target audience**: [Prerequisites]
+- **Length**: [seconds/minutes]
+- **Resolution**: 480p (draft) / 1080p (final)
+
+## Color Palette
+- Background: #1C1C1C
+- Primary: #58C4DD -- [purpose]
+- Secondary: #83C167 -- [purpose]
+- Accent: #FFFF00 -- [purpose]
+
+## Arc: [Discovery / Problem-Solution / Comparison / Build-Up]
+
+## Scene 1: [Name] (~Ns)
+**Purpose**: [one sentence]
+**Layout**: [FULL_CENTER / LEFT_RIGHT / GRID / PROGRESSIVE]
+
+### Visual elements
+- [Mobject: type, position, color]
+
+### Animation sequence
+1. [Animation] -- [what it reveals] (~Ns)
+
+### Subtitle
+"[text]"
+```