⚙️ Strength + Timing + Weight
Every movement is built on three elements. Seedance understands physics, not adjectives — then physics is how you communicate.
Strength
What drives the movement — impact, acceleration, gravity, interaction.
Time
How long actions take—precise durations such as 0,3s or 1,2s.
Weight
How objects behave physically—inertia, drag, falling.
✨ Central idea
Movement = a controlled sequence of events. Before writing the scene, define the camera, force, sequence, delays, and perception.
🔄 Sequence: Large → Small → Particles
The order of events over time is reality’s physical signature. The rule: large → small → particles.
Impact example
Debris → dust → smoke
Water example
Splash → droplets → mist
📷 The Camera Defines Perception
The camera is what the viewer experiences. Always define its behavior: position, movement, and stability.
Position
Low, open, close-up.
Movement
Pan, tilt, dolly, orbit, shake.
Behavior
Stable vs. handheld.
🎥 What the examples demonstrate
- •Helmet cam, tracking shots, drone follow
- •Continuous orbit and steady pull-back
🧍 Human Reaction: Show, Don’t Name
Emotion is shown physically—through breathing, micro-movements, eye focus, and body tension. Never state the emotion: show it through movement.
✗ Instead of saying
- ✗"He's scared"
- ✗"She's nervous"
✓ Show
- ✓Fingers slipping
- ✓Eyes widening
- ✓Changing breathing
📏 Measurable Details & Timing
Timing creates realism. Use measurable details — time, distance, and angle — and control the speed. No vague descriptions.
timing: acao_principal: "0.3s — impacto" reacao_corporal: "1.2s — tensão e recuo" slow_motion: "30% da cena em câmera lenta" efeitos_residuais: "poeira permanece por 2s"
📌 Key Rules
- ❗No vague descriptions
- 📏Use timing, distance, and angle
- 🎯Focus on observable actions
- 🎥Always define the camera behavior
🔁 Secondary Movement
Everything continues after the main action. These delayed layers create depth and realism.
🧠 Final conclusion
You don’t need to describe everything. You only need four things—Seedance turns them into motion:
📝 Task — Build a Scene with Physics
Create your own scene using this method. Include all four elements:
- ⚡Strength
- 🔄Sequence
- 📷Camera
- 🧍Human reaction
Then explain: why this speed? why this camera? what does the viewer feel, without naming emotions? Show everything through movement and timing.
📌 Module Summary
Next Module:
5.3 — YAML Control in Seedance 2