# Video Prompt Writing Guide

## Prompt Structure

### Basic Formula
**Main subject + Scene/Space + Movement/Change**

Examples:
- "A puppy runs toward the camera in a sunny park"
- "A woman walks in the rain holding an umbrella on a city street"
- "A stream flows through a green valley with morning mist"

### Professional Formula
**Main subject + Scene + Movement + Camera motion + Aesthetic atmosphere**

Examples:
- "A couple sits on a park bench, warm golden hour lighting, [固定] framing, intimate and romantic atmosphere"
- "A young man in a suit eats noodles at a street stall, [拉远] revealing the busy night market, warm tones, cinematic"
- "A dancer performs contemporary dance in an empty studio, [跟随] smooth tracking, dramatic side lighting"

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## Key Principles

1. **More precise language → more accurate video**
2. **Richer description → better generation quality**
3. **Keep prompts focused on 5-6 seconds of action** — do not describe too many events
4. **Combine shot types with mood descriptors** for professional output

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## Camera Instructions Usage

### Simultaneous Camera Movement
Place multiple instructions in one bracket:
- `[左摇,上升]` — pan left while rising
- `[推进,下摇]` — push in while tilting down

### Sequential Camera Movement
Place instructions at different points in the prompt:
- "The camera starts with [推进] toward the face, then [拉远] to reveal the full scene"

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## Style-Specific Prompt Tips

### Realistic / Cinematic Style
- Mention lighting: "golden hour", "overcast sky", "dramatic side lighting"
- Color grading: "warm tones", "cool desaturated palette", "high contrast"
- Texture: "rain droplets on glass", "dust particles in sunlight"
- Cinematic terms: "shallow depth of field", "anamorphic lens flare"

### Animation Style
- Substyle: "2D anime", "3D Pixar-style", "watercolor animation", "stop-motion"
- Character design: "big expressive eyes", "chibi proportions"
- Effects: "sparkle particles", "speed lines", "dramatic wind effects"

### Product / Commercial Style
- Product details: "smooth surface", "premium materials", "elegant design"
- Studio lighting: "soft box lighting", "rim light", "gradient background"
- Motion: "slow rotation", "smooth reveal", "gentle float"

### Fantasy / Sci-Fi Style
- World elements: "floating islands", "neon cyberpunk city", "enchanted forest"
- VFX: "magic particles", "holographic displays", "energy beams"
- Scale: "vast landscape", "towering structures", "infinite horizon"

### Nature / Documentary Style
- Terminology: "macro shot", "time-lapse", "wildlife behavior"
- Phenomena: "morning dew", "sunset colors", "storm clouds"
- Precision: "slow motion at 240fps", "underwater perspective"

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## Image-to-Video Prompt Tips

Focus on **movement and change** since the image establishes the visual:
- Image of still lake → "Gentle ripples spread across the water surface, a breeze rustles the trees, [固定] fixed camera, peaceful"
- Image of portrait → "The person slowly smiles and turns their head, natural blinking, [推进] subtle push in, warm lighting"

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## Prompt Building Checklist

1. **Subject**: Appearance, clothing, color, expression, posture
2. **Action**: 1-2 key temporal actions ("first...then...")
3. **Scene**: Setting with foreground + background + atmosphere
4. **Camera**: `[运镜指令]` for precise control
5. **Aesthetic**: Lighting, color, texture, cinematic quality

## Common Mistakes

1. Too many events for 6-second videos
2. Conflicting camera instructions
3. Vague descriptions
4. Static descriptions without motion
5. Missing aesthetic layer
6. Overlong prompts (keep under 200 words)
