AgentSkillsCN

shot-composition

为电影叙事精心规划镜头角度、运镜手法、景别选择以及视觉设计。

SKILL.md
--- frontmatter
name: shot-composition
id: SK-FTV-009
version: 1.0.0
description: Plan camera angles, movements, shot sizes, and visual design for cinematic storytelling
specialization: film-tv-production

Shot Composition Skill

Purpose

Design visually compelling shots that serve the story. Every camera choice—angle, movement, lens, composition—should enhance meaning, create emotion, and guide the viewer's attention.

Shot Sizes

The Size Spectrum

code
EWS ─── WS ─── MWS ─── MS ─── MCU ─── CU ─── ECU
│       │       │       │       │       │      │
│       │       │       │       │       │      └── Detail/Eyes
│       │       │       │       │       └──────── Face
│       │       │       │       └──────────────── Head/Shoulders
│       │       │       └──────────────────────── Waist Up
│       │       └──────────────────────────────── Knees Up
│       └──────────────────────────────────────── Full Body
└──────────────────────────────────────────────── Environment

When to Use Each

SizeUse ForEmotion
EWSEstablishing, scope, isolationAwe, loneliness
WSContext, geography, actionObjective, neutral
MWSBlocking, movementBalance
MSConversation, actionEngagement
MCUEmotion, dialogueConnection
CUReaction, intimacyIntensity
ECUDetail, revelationImpact

Camera Angles

Vertical Angles

code
Bird's Eye   → Looking straight down (god view)
High Angle   → Looking down at subject (vulnerability)
Eye Level    → Neutral, natural (equality)
Low Angle    → Looking up at subject (power)
Worm's Eye   → Looking straight up (extreme power)

Horizontal Angles

code
Frontal      → Direct, confrontational
3/4 Profile  → Most common, dimensional
Profile      → Reflective, contemplative
Over Shoulder → POV, conversation
Dutch Angle  → Unease, disorientation

Camera Movement

Movement Types

MovementDescriptionEffect
StaticNo movementStability, observation
PanHorizontal pivotSurvey, follow
TiltVertical pivotReveal, scale
DollyCamera moves forward/backIntimacy, revelation
TrackCamera moves alongsideFollow, accompany
CraneCamera moves up/downScope, grandeur
SteadicamSmooth handheldImmersion
HandheldNaturalistic shakeUrgency, documentary
ZoomLens change (not movement)Emphasis, isolation

Motivated Movement

Movement should be motivated by:

  • Character movement (following action)
  • Emotional revelation (moving in for intimacy)
  • Story information (revealing new element)
  • Point of view (showing what character sees)

Composition Principles

Rule of Thirds

code
┌───┬───┬───┐
│ • │   │ • │   Place subjects at intersections
├───┼───┼───┤   for dynamic composition
│   │ ○ │   │
├───┼───┼───┤   Center for stability/confrontation
│ • │   │ • │
└───┴───┴───┘

Leading Lines

code
Lines that guide the eye:
- Roads, hallways, fences
- Arms, gaze direction
- Light beams, shadows
- Architectural elements

Frame Within Frame

code
Use doorways, windows, mirrors
to create visual interest and
focus attention on subject

Depth

code
Foreground  │  Midground  │  Background
    ↓              ↓             ↓
   Frame       Subject       Context

Lens Choices

Focal Length Effects

LensEffectUse
Wide (14-35mm)Distortion, spaceEnvironments, unease
Normal (35-50mm)NaturalDialogue, general
Telephoto (85mm+)Compression, isolationPortraits, tension

Depth of Field

code
Shallow DOF (f/1.4-2.8):
- Subject sharp, background blur
- Isolation, intimacy
- Focus pull for attention

Deep DOF (f/8-16):
- Everything in focus
- Context, geography
- Multiple planes of action

Shot List Format

markdown
## Scene [Number] Shot List

| Shot | Size | Angle | Lens | Movement | Subject | Action | Duration |
|------|------|-------|------|----------|---------|--------|----------|
| 1.1  | WS   | Eye   | 35mm | Static   | Room    | Est.   | 3s       |
| 1.2  | MS   | 3/4   | 50mm | Track    | Sarah   | Enter  | 5s       |
| 1.3  | CU   | Eye   | 85mm | Static   | Sarah   | React  | 2s       |

Visual Storytelling

Show Power Dynamics

code
DOMINANT: Low angle, higher position, larger frame
SUBMISSIVE: High angle, lower position, smaller frame
EQUAL: Eye level, similar frame sizes

Create Tension

code
- Tight framing (claustrophobic)
- Negative space (anticipation)
- Off-center subjects (unease)
- Shallow DOF (isolation)

Guide Emotion

code
JOY: Bright, warm, open framing
FEAR: Dark, tight, unpredictable
LOVE: Soft, close, warm tones
ANGER: Hard, dynamic, extreme angles

Coverage Strategy

Basic Scene Coverage

  1. Master - Full scene in one shot
  2. Singles - Individual close-ups
  3. Over-shoulders - Conversation coverage
  4. Inserts - Detail shots
  5. Cutaways - Reaction, environment

Action Coverage

  1. Wide master - Geography
  2. Medium action - Key moments
  3. Close details - Impact
  4. Reaction - Emotional response

Shot Breakdown Template

markdown
## Shot [ID]

### Technical
- **Size:** [EWS/WS/MS/MCU/CU/ECU]
- **Angle:** [Eye/Low/High/Dutch]
- **Lens:** [Focal length]
- **Movement:** [Type and direction]
- **Duration:** [Seconds]

### Composition
- **Subject Placement:** [Thirds/Center]
- **Depth:** [FG/MG/BG elements]
- **Leading Lines:** [If any]

### Purpose
- **Story Function:** [What it communicates]
- **Emotional Intent:** [What viewer should feel]

### AI Video Prompt
[Optimized prompt for generation]

Quality Checklist

  • Shot size serves scene purpose
  • Angle reinforces power/emotion
  • Movement is motivated
  • Composition guides eye
  • Coverage is complete
  • Continuity maintained
  • Screen direction consistent
  • Each shot earns its place