docs: [academy] 방화셔터 Veo 3.1 영상 생성 프롬프트 16종 작성

docs/veo3.1/fire-shutter-video-prompts.md

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+# 방화셔터 Veo 3.1 영상 생성 프롬프트
+
+> **작성일**: 2026-02-22
+> **용도**: Google Veo 3.1 API를 활용한 방화셔터 동작 영상 생성
+> **참고**: 이미지-투-비디오(I2V) 활용 시 `images/academy/fire-shutter/` 이미지를 Reference Image로 사용 권장
+
+---
+
+## 1. 강판형 (Steel Plate) 셔터 프롬프트
+
+### 1-1. 정면 전체 하강 (Full Front View - Closing)
+
+```
+Photorealistic technical video. Front view of a steel plate fire shutter descending smoothly in a modern commercial building corridor. The shutter is made of interlocking EGI (electro-galvanized steel) slats, each 1.6mm thick, with a metallic silver-gray finish. The slats unroll from a cylindrical shaft hidden inside a ceiling-mounted case (shutter box). The shutter descends steadily at 0.15 m/s between two vertical guide rails mounted on both sides of the wall. As it lowers, each interlocking slat clicks into place with subtle mechanical precision. Fluorescent corridor lighting reflects off the steel surface. The shutter reaches the floor and seals the opening completely. Clean architectural interior, white walls, concrete ceiling. Shot at eye level, 8 seconds.
+```
+
+### 1-2. 2단계 폐쇄 시퀀스 (Two-Stage Closing Sequence)
+
+```
+Photorealistic industrial safety video. A large steel plate fire shutter in a shopping mall atrium performs a two-stage emergency closing sequence. Stage 1: A ceiling-mounted smoke detector activates with a blinking red LED. An alarm buzzer sounds. The steel shutter begins descending slowly at 0.15 m/s, interlocking steel slats unrolling from the ceiling case. It stops at approximately 1 meter above the floor, leaving escape space underneath. People can be seen ducking under the partially closed shutter. Stage 2: After a pause, a heat detector triggers. The shutter resumes descending and closes completely to the floor, sealing the opening. The bottom bar presses firmly against the floor. Wide angle shot showing the full height of the shutter from open to fully closed. Modern commercial interior with polished floors. 8 seconds.
+```
+
+### 1-3. 측면 클로즈업 - 가이드레일 (Side Close-up - Guide Rail)
+
+```
+Photorealistic close-up technical video. Side angle view focusing on a fire shutter guide rail mounted vertically on a concrete wall. The guide rail is a C-shaped steel channel made of 2.3mm hot-rolled steel plate (SPHC), fixed to the wall with anchor bolts at 400mm intervals. Steel slats descend through the guide rail groove, each slat edge sliding smoothly inside the channel. A ceramic smoke seal (fire-resistant packing) is visible inside the rail, pressing against the slat edges to prevent smoke leakage. The camera is positioned at a 30-degree angle from the wall, capturing the mechanical precision of slat-to-rail engagement. Close-up macro detail, shallow depth of field. Industrial lighting. 8 seconds.
+```
+
+### 1-4. 하부 앙각 (Low Angle - Looking Up)
+
+```
+Photorealistic dramatic low angle video. Camera positioned on the floor looking straight up at a steel plate fire shutter descending from the ceiling. The interlocking steel slats approach the camera, each slat reflecting overhead fluorescent lights with a metallic sheen. The cylindrical shaft is partially visible inside the open ceiling case as slats unroll. Guide rails frame both sides of the frame vertically. The bottom bar with rubber seal approaches the floor as the shutter closes. The perspective creates a dramatic narrowing effect as the opening shrinks. Slight wide-angle lens distortion adds cinematic tension. Modern building interior, concrete ceiling structure visible. 8 seconds.
+```
+
+### 1-5. 슬랫 인터록킹 매크로 (Slat Interlocking Macro)
+
+```
+Photorealistic extreme close-up macro video. Ultra-detailed view of steel fire shutter slats interlocking during descent. Two adjacent EGI steel slats (1.6mm thick, silver-gray galvanized finish) connect via a curved hook-and-groove interlocking mechanism. As the shutter moves downward, each slat rotates slightly and locks into the one below with a satisfying mechanical click. The rolled edge profile (C-type slat) is clearly visible. Surface texture shows fine galvanized zinc coating pattern. Shallow depth of field, the background blurred. Studio-quality lighting highlighting the metallic surface and mechanical joint detail. 8 seconds.
+```
+
+### 1-6. 천장 내부 - 샤프트 회전 (Inside Ceiling Case - Shaft Rotation)
+
+```
+Photorealistic technical cutaway video. View inside a fire shutter ceiling case (shutter box) showing the shaft assembly in operation. A large cylindrical steel shaft (200mm diameter, STK 400 steel pipe) rotates slowly, unrolling the steel slat curtain. On one end, a gear reducer connected to an electric motor drives the shaft. On the opposite end, a bearing bracket supports the shaft. A mechanical brake mechanism is visible. The slat curtain wraps around the shaft in tight concentric layers. As the shaft rotates, slats peel off and feed downward through the case opening. Internal industrial lighting, exposed mechanical components. Technical documentation style. 8 seconds.
+```
+
+### 1-7. 복도 원근감 하강 (Corridor Perspective - Descending)
+
+```
+Photorealistic cinematic video. Long corridor perspective in a modern underground shopping arcade. Three steel plate fire shutters are descending simultaneously at different distances from the camera, creating a dramatic depth perspective. The nearest shutter is halfway down, the middle one is one-quarter down, and the farthest is just beginning to descend. Emergency alarm buzzers sound. Red warning lights flash on the walls. The steel slats reflect the corridor's LED strip lighting. People walk briskly away from the closing shutters. Polished granite floor, modern retail storefronts on both sides. Cinematic composition with vanishing point perspective. 8 seconds.
+```
+
+### 1-8. 상승 (개방) 동작 (Opening - Ascending)
+
+```
+Photorealistic technical video. Front view of a steel plate fire shutter ascending and opening in a commercial building. An electric motor hums as the shaft rotates, winding the steel slat curtain upward. The bottom bar lifts off the floor first, then slats retract one by one into the ceiling case. Each slat enters the guide rail groove and wraps around the shaft above. The opening grows from the bottom, revealing the corridor behind. Daylight floods through the expanding gap. The shutter fully retracts into the compact ceiling case, disappearing from view. The guide rails remain visible as vertical strips on both walls. Clean, well-lit modern interior. 8 seconds.
+```
+
+---
+
+## 2. 스크린형 (Screen / Fabric) 셔터 프롬프트
+
+### 2-1. 정면 전체 하강 (Full Front View - Closing)
+
+```
+Photorealistic technical video. Front view of a fire-resistant screen-type fire shutter descending in a large modern atrium with high ceilings. The screen is made of woven silica (SiO2) fire-resistant fabric, semi-transparent with a light gray-beige color. Unlike steel shutters, the fabric screen unrolls smoothly and silently from a compact ceiling case. The material is lightweight and slightly translucent - objects on the other side are faintly visible through the fabric. Narrow guide rails (only 11mm wide) on both sides guide the fabric edges. The screen descends gracefully like a theater curtain, with gentle fabric undulation. Bright atrium with natural skylight illumination. The fabric glows softly as light passes through. 8 seconds.
+```
+
+### 2-2. 2단계 폐쇄 시퀀스 (Two-Stage Closing Sequence)
+
+```
+Photorealistic safety demonstration video. A screen-type fire shutter in a large airport terminal performs a two-stage emergency closing sequence. Stage 1: Smoke detectors activate. A semi-transparent silica fabric screen begins descending from the ceiling, its surface slightly translucent allowing visibility through it. The screen stops at 1 meter above the floor for evacuation. The lightweight fabric barely sways. Travelers can see through the semi-transparent material to assess the situation on the other side. Stage 2: Heat detector triggers. The screen continues descending to the floor, completing the fire compartment seal. The bottom edge has a weighted bar ensuring floor contact. Wide shot in a spacious terminal with high ceilings, large glass windows, departure boards visible. 8 seconds.
+```
+
+### 2-3. 반투명 효과 강조 (Translucency Highlight)
+
+```
+Photorealistic artistic video. A silica-fiber screen-type fire shutter is fully closed in a building corridor. The camera is positioned on one side. Through the semi-transparent fire-resistant fabric, silhouettes of people and emergency lights on the other side are faintly visible. The screen material has a fine woven textile texture, light gray-white color. Overhead lights create a soft glow through the fabric surface. A hand reaches out and touches the screen, showing the flexible fabric texture. The camera slowly moves closer to reveal the woven fiber detail of the silica material. Warm interior lighting contrasts with the cool gray of the screen. Cinematic shallow depth of field. 8 seconds.
+```
+
+### 2-4. 에스컬레이터 개구부 하강 (Escalator Opening - Descending)
+
+```
+Photorealistic architectural video. A screen-type fire shutter descends around an escalator opening in a large department store. The silica fabric screen drops vertically from a ceiling-mounted case, enclosing the escalator void. The compact guide rail system (11mm width) is barely visible against the wall, demonstrating the screen type's advantage in tight spaces. The lightweight fabric descends without vibration or noise. The escalator continues running behind the semi-transparent screen, its movement faintly visible through the fabric. Multi-level atrium with escalators, shoppers on different floors. Modern retail architecture with glass railings. High angle shot looking down at the escalator being enclosed. 8 seconds.
+```
+
+### 2-5. 스크린 직물 매크로 (Screen Fabric Macro)
+
+```
+Photorealistic extreme close-up macro video. Ultra-detailed view of fire-resistant screen shutter fabric material. The woven silica (SiO2) fiber textile is shown in extreme magnification. Individual heat-resistant fibers are visible in a tight weave pattern, creating a mesh-like structure. Light passes through the tiny gaps between fibers, creating a semi-transparent effect. The fabric surface has a slightly rough, industrial textile texture. A gentle breeze causes subtle rippling across the surface. The camera slowly pulls back to reveal the full fabric panel descending in a guide rail. Transition from macro to medium shot. Studio-quality lighting with backlight emphasizing translucency. 8 seconds.
+```
+
+### 2-6. 대형 아트리움 하강 (Large Atrium Descent)
+
+```
+Photorealistic cinematic video. A massive screen-type fire shutter descends in a grand multi-story atrium of a convention center. The silica fabric screen spans over 15 meters wide and drops from the 4th floor ceiling. Despite its enormous size, the lightweight fabric descends smoothly and quietly. Natural light from skylights above illuminates the semi-transparent screen from behind, creating a dramatic glowing curtain effect. The screen bisects the atrium space, creating a fire compartment. People on the ground floor look up at the descending fabric. The scale of the space emphasizes how screen-type shutters handle openings too large for traditional steel shutters. Grand architectural space, modern design. 8 seconds.
+```
+
+---
+
+## 3. 비교 및 특수 상황 프롬프트
+
+### 3-1. 강판형 vs 스크린형 나란히 비교 (Side-by-Side Comparison)
+
+```
+Photorealistic split-screen comparison video. Left half shows a steel plate fire shutter descending: heavy interlocking EGI steel slats, metallic silver surface, completely opaque, mechanical clicking sounds as slats interlock, thick guide rails on the wall. Right half shows a screen-type fire shutter descending simultaneously: lightweight silica fabric, semi-transparent gray-white surface, silent smooth descent, minimal 11mm guide rails barely visible. Both shutters descend at the same speed (0.15 m/s) in identical corridor settings. The contrast highlights: steel = robust/opaque/heavy, screen = lightweight/translucent/compact. Clean white corridor background on both sides. Professional comparison format. 8 seconds.
+```
+
+### 3-2. 화재 시뮬레이션 - 연기 차단 (Fire Simulation - Smoke Blocking)
+
+```
+Photorealistic fire safety simulation video. A fully closed steel plate fire shutter blocks a corridor. On one side, orange flames and thick black smoke fill the space. The steel slats glow faintly red-orange from heat on the fire side. Smoke attempts to penetrate through the guide rail edges but is blocked by ceramic smoke seals. On the safe side, the corridor remains clear with clean air. The temperature difference is visible as heat shimmer near the shutter surface. Emergency exit signs glow green on the safe side. The camera is positioned on the safe side, looking at the protective barrier. Dramatic lighting contrast between fire side (orange glow through gaps) and safe side (cool blue-white). 8 seconds.
+```
+
+### 3-3. 유지보수 점검 (Maintenance Inspection)
+
+```
+Photorealistic documentary-style video. A maintenance technician in a blue work uniform and safety helmet inspects a steel plate fire shutter. He operates a manual control box mounted on the wall, pressing buttons to test the shutter's descent. The shutter descends partially, stops, then ascends. The technician checks the guide rails with a flashlight, inspecting the smoke seal condition. He marks a checklist on a clipboard. Another technician on a ladder opens the ceiling case panel to inspect the shaft, motor, and brake mechanism inside. Professional maintenance environment, well-lit corridor. Technical inspection atmosphere. 8 seconds.
+```
+
+### 3-4. 수동조작함 비상 작동 (Manual Control Box Emergency Operation)
+
+```
+Photorealistic emergency scenario video. Close-up of a fire shutter manual control box (red metal enclosure) mounted on a wall. A hand opens the cover to reveal UP/STOP/DOWN buttons. The person presses the DOWN button. Cut to: the steel fire shutter begins descending from the ceiling. An alarm buzzer sounds. Red warning light on the control box flashes. The shutter descends steadily. The person presses STOP - the shutter halts mid-position. Then presses UP - the shutter reverses and ascends. Demonstrates manual override capability. Close-up of control box then medium shot of shutter responding. Emergency lighting atmosphere. 8 seconds.
+```
+
+### 3-5. 설치 현장 타임랩스 (Installation Time-lapse)
+
+```
+Photorealistic time-lapse style video. Construction site installation of a steel plate fire shutter compressed into 8 seconds. Workers in hard hats and safety vests perform sequential steps: (1) measuring and marking the opening with chalk lines, (2) drilling anchor bolts and mounting brackets on the ceiling slab, (3) installing vertical guide rails on both walls, (4) hoisting the shaft assembly with slat curtain rolled up using a small crane, (5) seating the shaft on bracket bearings, (6) unrolling slats into guide rails, (7) connecting motor, reducer, and wiring the interlock controller, (8) installing the shutter box case around the shaft. Construction site environment with exposed concrete, scaffolding, power tools. Professional time-lapse speed with smooth transitions. 8 seconds.
+```
+
+### 3-6. 감속기/모터/브레이크 동작 (Reducer/Motor/Brake Mechanism)
+
+```
+Photorealistic technical close-up video. Detailed view of the fire shutter drive mechanism mounted at one end of the shaft. An electric motor (3-phase induction motor) starts rotating. It connects to a worm gear reducer that converts high-speed rotation to slow, high-torque shaft rotation. The shaft begins turning, unrolling the steel slat curtain. When power is cut, an electromagnetic brake engages with an audible clank, holding the shaft in position. An automatic closing device (fusible link mechanism) is visible - in fire conditions, a thermal fuse melts, releasing the brake and allowing gravity-driven descent. Technical cutaway perspective showing internal gear teeth meshing. Industrial mechanical detail. 8 seconds.
+```
+
+---
+
+## 4. 활용 가이드
+
+### Reference Image 매핑 (I2V 활용)
+
+| Reference Image | 추천 프롬프트 |
+|----------------|-------------|
+| `1.png` (전체 구성도) | 1-6 천장 내부 샤프트, 3-6 감속기/모터 |
+| `2.png` (슬랫 인터록킹) | 1-5 슬랫 매크로 |
+| `3.png` (가이드레일) | 1-3 가이드레일 클로즈업 |
+| `4.png` / `5.png` (샤프트) | 1-6 천장 내부 샤프트 |
+| `6.png` (감속기+모터) | 3-6 감속기/모터/브레이크 |
+| `8.png` (2단계 시퀀스) | 1-2 / 2-2 2단계 폐쇄 시퀀스 |
+| `9.png` (현장 설치) | 3-5 설치 타임랩스 |
+| `10.png` (유지보수) | 3-3 유지보수 점검 |
+| `11.png` (강판 vs 스크린) | 3-1 나란히 비교 |
+
+### 비용 예측 (Veo 3.1 Fast 기준)
+
+- 프롬프트 총 **16개** x 8초 = 128초
+- Fast 모델: 128초 x $0.15/초 = **약 $19.20 (약 25,000원)**
+- Standard 모델: 128초 x $0.50/초 = **약 $64.00 (약 85,000원)**
+
+### 제작 우선순위 권장
+
+1. **1순위** (핵심 동작): 1-1, 1-2, 2-1, 2-2 → 기본 하강/2단계 시퀀스
+2. **2순위** (비교/디테일): 3-1, 1-5, 2-5, 1-3 → 비교, 매크로, 가이드레일
+3. **3순위** (부가 장면): 나머지 프롬프트
+
+---
+
+**최종 업데이트**: 2026-02-22