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Manim Video

Production pipeline for mathematical and technical animations using Manim Community Edition. Creates 3Blue1Brown-style explainer videos, algorithm visualizations, equation derivations, architecture diagrams, and data stories. Use when users request: animated explanations, math animations, concept visualizations, algorithm walkthroughs, technical explainers, 3Blue1Brown style videos, or any programmatic animation with geometric/mathematical content.

Skill metadata


Source	Bundled (installed by default)
Path	`skills/creative/manim-video`
Version	`1.0.0`

Reference: full SKILL.md

信息

The following is the complete skill definition that Hermes loads when this skill is triggered. This is what the agent sees as instructions when the skill is active.

Manim Video Production Pipeline

Creative Standard

This is educational cinema. Every frame teaches. Every animation reveals structure.

Before writing a single line of code, articulate the narrative arc. What misconception does this correct? What is the "aha moment"? What visual story takes the viewer from confusion to understanding? The user's prompt is a starting point — interpret it with pedagogical ambition.

Geometry before algebra. Show the shape first, the equation second. Visual memory encodes faster than symbolic memory. When the viewer sees the geometric pattern before the formula, the equation feels earned.

First-render excellence is non-negotiable. The output must be visually clear and aesthetically cohesive without revision rounds. If something looks cluttered, poorly timed, or like "AI-generated slides," it is wrong.

Opacity layering directs attention. Never show everything at full brightness. Primary elements at 1.0, contextual elements at 0.4, structural elements (axes, grids) at 0.15. The brain processes visual salience in layers.

Breathing room. Every animation needs self.wait() after it. The viewer needs time to absorb what just appeared. Never rush from one animation to the next. A 2-second pause after a key reveal is never wasted.

Cohesive visual language. All scenes share a color palette, consistent typography sizing, matching animation speeds. A technically correct video where every scene uses random different colors is an aesthetic failure.

Prerequisites

Run scripts/setup.sh to verify all dependencies. Requires: Python 3.10+, Manim Community Edition v0.20+ (pip install manim), LaTeX (texlive-full on Linux, mactex on macOS), and ffmpeg. Reference docs tested against Manim CE v0.20.1.

Modes

Mode	Input	Output	Reference
Concept explainer	Topic/concept	Animated explanation with geometric intuition	`references/scene-planning.md`
Equation derivation	Math expressions	Step-by-step animated proof	`references/equations.md`
Algorithm visualization	Algorithm description	Step-by-step execution with data structures	`references/graphs-and-data.md`
Data story	Data/metrics	Animated charts, comparisons, counters	`references/graphs-and-data.md`
Architecture diagram	System description	Components building up with connections	`references/mobjects.md`
Paper explainer	Research paper	Key findings and methods animated	`references/scene-planning.md`
3D visualization	3D concept	Rotating surfaces, parametric curves, spatial geometry	`references/camera-and-3d.md`

Stack

Single Python script per project. No browser, no Node.js, no GPU required.

Layer	Tool	Purpose
Core	Manim Community Edition	Scene rendering, animation engine
Math	LaTeX (texlive/MiKTeX)	Equation rendering via `MathTex`
Video I/O	ffmpeg	Scene stitching, format conversion, audio muxing
TTS	ElevenLabs / Qwen3-TTS (optional)	Narration voiceover

Pipeline

PLAN --> CODE --> RENDER --> STITCH --> AUDIO (optional) --> REVIEW

PLAN — Write plan.md with narrative arc, scene list, visual elements, color palette, voiceover script
CODE — Write script.py with one class per scene, each independently renderable
RENDER — manim -ql script.py Scene1 Scene2 ... for draft, -qh for production
STITCH — ffmpeg concat of scene clips into final.mp4
AUDIO (optional) — Add voiceover and/or background music via ffmpeg. See references/rendering.md
REVIEW — Render preview stills, verify against plan, adjust

Project Structure

project-name/
  plan.md                # Narrative arc, scene breakdown
  script.py              # All scenes in one file
  concat.txt             # ffmpeg scene list
  final.mp4              # Stitched output
  media/                 # Auto-generated by Manim
    videos/script/480p15/

Creative Direction

Color Palettes

Palette	Background	Primary	Secondary	Accent	Use case
Classic 3B1B	`#1C1C1C`	`#58C4DD` (BLUE)	`#83C167` (GREEN)	`#FFFF00` (YELLOW)	General math/CS
Warm academic	`#2D2B55`	`#FF6B6B`	`#FFD93D`	`#6BCB77`	Approachable
Neon tech	`#0A0A0A`	`#00F5FF`	`#FF00FF`	`#39FF14`	Systems, architecture
Monochrome	`#1A1A2E`	`#EAEAEA`	`#888888`	`#FFFFFF`	Minimalist

Animation Speed

Context	run_time	self.wait() after
Title/intro appear	1.5s	1.0s
Key equation reveal	2.0s	2.0s
Transform/morph	1.5s	1.5s
Supporting label	0.8s	0.5s
FadeOut cleanup	0.5s	0.3s
"Aha moment" reveal	2.5s	3.0s

Typography Scale

Role	Font size	Usage
Title	48	Scene titles, opening text
Heading	36	Section headers within a scene
Body	30	Explanatory text
Label	24	Annotations, axis labels
Caption	20	Subtitles, fine print

Fonts

Use monospace fonts for all text. Manim's Pango renderer produces broken kerning with proportional fonts at all sizes. See references/visual-design.md for full recommendations.

MONO = "Menlo"  # define once at top of file

Text("Fourier Series", font_size=48, font=MONO, weight=BOLD)  # titles
Text("n=1: sin(x)", font_size=20, font=MONO)                  # labels
MathTex(r"\nabla L")                                            # math (uses LaTeX)

Minimum font_size=18 for readability.

Per-Scene Variation

Never use identical config for all scenes. For each scene:

Different dominant color from the palette
Different layout — don't always center everything
Different animation entry — vary between Write, FadeIn, GrowFromCenter, Create
Different visual weight — some scenes dense, others sparse

Workflow

Step 1: Plan (plan.md)

Before any code, write plan.md. See references/scene-planning.md for the comprehensive template.

Step 2: Code (script.py)

One class per scene. Every scene is independently renderable.

from manim import *

BG = "#1C1C1C"
PRIMARY = "#58C4DD"
SECONDARY = "#83C167"
ACCENT = "#FFFF00"
MONO = "Menlo"

class Scene1_Introduction(Scene):
    def construct(self):
        self.camera.background_color = BG
        title = Text("Why Does This Work?", font_size=48, color=PRIMARY, weight=BOLD, font=MONO)
        self.add_subcaption("Why does this work?", duration=2)
        self.play(Write(title), run_time=1.5)
        self.wait(1.0)
        self.play(FadeOut(title), run_time=0.5)

Key patterns:

Subtitles on every animation: self.add_subcaption("text", duration=N) or subcaption="text" on self.play()
Shared color constants at file top for cross-scene consistency
self.camera.background_color set in every scene
Clean exits — FadeOut all mobjects at scene end: self.play(FadeOut(Group(*self.mobjects)))

Step 3: Render

manim -ql script.py Scene1_Introduction Scene2_CoreConcept  # draft
manim -qh script.py Scene1_Introduction Scene2_CoreConcept  # production

Step 4: Stitch

cat > concat.txt << 'EOF'
file 'media/videos/script/480p15/Scene1_Introduction.mp4'
file 'media/videos/script/480p15/Scene2_CoreConcept.mp4'
EOF
ffmpeg -y -f concat -safe 0 -i concat.txt -c copy final.mp4

Step 5: Review

manim -ql --format=png -s script.py Scene2_CoreConcept  # preview still

Critical Implementation Notes

Raw Strings for LaTeX

# WRONG: MathTex("\frac{1}{2}")
# RIGHT:
MathTex(r"\frac{1}{2}")

buff >= 0.5 for Edge Text

label.to_edge(DOWN, buff=0.5)  # never < 0.5

FadeOut Before Replacing Text

self.play(ReplacementTransform(note1, note2))  # not Write(note2) on top

Never Animate Non-Added Mobjects

self.play(Create(circle))  # must add first
self.play(circle.animate.set_color(RED))  # then animate

Performance Targets

Quality	Resolution	FPS	Speed
`-ql` (draft)	854x480	15	5-15s/scene
`-qm` (medium)	1280x720	30	15-60s/scene
`-qh` (production)	1920x1080	60	30-120s/scene

Always iterate at -ql. Only render -qh for final output.

References

File	Contents
`references/animations.md`	Core animations, rate functions, composition, `.animate` syntax, timing patterns
`references/mobjects.md`	Text, shapes, VGroup/Group, positioning, styling, custom mobjects
`references/visual-design.md`	12 design principles, opacity layering, layout templates, color palettes
`references/equations.md`	LaTeX in Manim, TransformMatchingTex, derivation patterns
`references/graphs-and-data.md`	Axes, plotting, BarChart, animated data, algorithm visualization
`references/camera-and-3d.md`	MovingCameraScene, ThreeDScene, 3D surfaces, camera control
`references/scene-planning.md`	Narrative arcs, layout templates, scene transitions, planning template
`references/rendering.md`	CLI reference, quality presets, ffmpeg, voiceover workflow, GIF export
`references/troubleshooting.md`	LaTeX errors, animation errors, common mistakes, debugging
`references/animation-design-thinking.md`	When to animate vs show static, decomposition, pacing, narration sync
`references/updaters-and-trackers.md`	ValueTracker, add_updater, always_redraw, time-based updaters, patterns
`references/paper-explainer.md`	Turning research papers into animations — workflow, templates, domain patterns
`references/decorations.md`	SurroundingRectangle, Brace, arrows, DashedLine, Angle, annotation lifecycle
`references/production-quality.md`	Pre-code, pre-render, post-render checklists, spatial layout, color, tempo

Creative Divergence (use only when user requests experimental/creative/unique output)

If the user asks for creative, experimental, or unconventional explanatory approaches, select a strategy and reason through it BEFORE designing the animation.

SCAMPER — when the user wants a fresh take on a standard explanation
Assumption Reversal — when the user wants to challenge how something is typically taught

SCAMPER Transformation

Take a standard mathematical/technical visualization and transform it:

Substitute: replace the standard visual metaphor (number line → winding path, matrix → city grid)
Combine: merge two explanation approaches (algebraic + geometric simultaneously)
Reverse: derive backward — start from the result and deconstruct to axioms
Modify: exaggerate a parameter to show why it matters (10x the learning rate, 1000x the sample size)
Eliminate: remove all notation — explain purely through animation and spatial relationships

Assumption Reversal

List what's "standard" about how this topic is visualized (left-to-right, 2D, discrete steps, formal notation)
Pick the most fundamental assumption
Reverse it (right-to-left derivation, 3D embedding of a 2D concept, continuous morphing instead of steps, zero notation)
Explore what the reversal reveals that the standard approach hides

Skill metadata​

Reference: full SKILL.md​

Manim Video Production Pipeline

Creative Standard​

Prerequisites​

Modes​

Stack​

Pipeline​

Project Structure​

Creative Direction​

Color Palettes​

Animation Speed​

Typography Scale​

Fonts​

Per-Scene Variation​

Workflow​

Step 1: Plan (plan.md)​

Step 2: Code (script.py)​

Step 3: Render​

Step 4: Stitch​

Step 5: Review​

Critical Implementation Notes​

Raw Strings for LaTeX​

buff >= 0.5 for Edge Text​

FadeOut Before Replacing Text​

Never Animate Non-Added Mobjects​

Performance Targets​

References​

Creative Divergence (use only when user requests experimental/creative/unique output)​

SCAMPER Transformation​

Assumption Reversal​