# helistage User Guide (complete)

> A text-only manual for people and AI assistants (ChatGPT, Claude, Gemini, …) that covers every control in the helistage editor.
> **The app's interface is in Korean.** Every on-screen label is quoted exactly as it appears, in «guillemets», followed by an English gloss — e.g. «키프레임» (Keyframe). When guiding a user, quote the Korean label so they can find it on screen.
> Shortcuts are written **Windows / Mac**. Windows Ctrl = Mac ⌘ (Command); Windows Alt = Mac ⌥ (Option).
> Applies to the test release of 2026-10-15. A short illustrated guidebook exists separately.

---

## 0. What helistage is

helistage is a web app for **building a scene in 3D and turning that scene's camera movement into an AI video**. It is not a professional 3D tool; 3D is the means to make a precise reference for AI video.

The basic flow has five steps:

1. **Create a scene** — open a new scene from «내 씬» (My scenes).
2. **Dress the stage** — place people, cars, shapes from the library; optionally lay down a «3D 공간» (3D world — a real-looking environment made from photos).
3. **Make the camera move** — place a camera and stamp its pose at several times (keyframes).
4. **Record** — export the camera movement as an mp4 «녹화물» (take).
5. **Make the AI video** — take + text description → «만들기» (Make). The AI video follows that camera movement.

---

## 1. Getting started

### 1-1. Sign in

- On helistage.com press «구글로 계속하기» (Continue with Google) and pick a Google account. There is no other sign-in method.
- **The first time only**, the app asks for an «초대 코드» (invite code). Type it and press «들어가기» (Enter). A wrong code shows «초대 코드가 맞지 않습니다.» (The invite code is not valid.) Each code works for one person, once — a code someone already used shows the same message. Company accounts (forever-st.com) skip this screen.
- The invite screen also has a «로그아웃» (Sign out) link, in case you signed in with the wrong Google account.
- Passing the invite code grants **starting credits** once per person.
- **One device at a time.** Signing in on another device/browser/private window signs out the first one: on its next save, within a minute, or when you return to that window, it shows the sign-in screen with «다른 기기에서 로그인됨» (Signed in on another device). Edits not yet uploaded on that device are kept and upload when you sign in there again and open that scene.

### 1-2. «내 씬» (My scenes)

After sign-in the app opens «내 씬» (path `/scenes`), organised as **project › scene › results**.

| Goal | How |
|---|---|
| New scene | «＋ 새 씬» (New scene) — created without a project |
| New project | «＋ 새 프로젝트» (New project) → type the name in place |
| New scene inside a project | «＋ 씬» (+ Scene) on the project header |
| Open a scene | «열기» (Open) on the scene row → editor |
| Rename / move to project / duplicate / delete a scene | «⋯» menu on the scene row: «이름 바꾸기» (Rename) · «프로젝트로 옮기기» (Move to project — its submenu also has «＋ 새 프로젝트» to create a project and move the scene into it) · «복제» (Duplicate — «어디에 복제할까»: «이 프로젝트에» (into this project), another project, or «프로젝트 없음»; the copy is named «<name> 2», keeps keyframes, and the made videos stay with the original scene; a scene not yet saved to the server, or with changes not yet uploaded, shows «복제» dimmed — open it once first) · «지우기» (Delete) |
| Rename / delete a project | «⋯» on the project header (deleting moves its scenes to «프로젝트 없음» (No project)) |
| Fold / unfold a project | button at the left of the project header |
| See results | the «만든 것» (Results) tiles under a scene («+N» when there are more) → «만든 것 보기» (Result viewer) |

- Deleting a scene keeps its results under «씬 없음» (No scene).
- Renames, moves and deletes show the same on every device.
- If the scene you have open is deleted on another device/tab, you are sent back here with «삭제된 씬입니다» (This scene was deleted) at the top; edits made meanwhile are not kept.
- In the editor, the product name «helistage» at the top-left returns to «내 씬».

### 1-3. Account menu & credits

- The round account button at the top-right opens a menu: name · email · «이 브라우저에서 로그인됨» (Signed in on this browser) · **«크레딧 N»** (remaining credits; «· 사용 중 N» (in use) shows credits reserved by running jobs) · charge buttons · «로그아웃» (Sign out). «내 씬» also shows «크레딧 N» at the top-right.
- **Charging**: during the test period only company accounts can charge — everyone else sees «테스트 기간엔 충전할 수 없어요» (Charging is not available during the test period) instead of the buttons. Otherwise press one of the four test plans «충전 (테스트) · N 크레딧» (Charge (test) · N credits — 10,000 · 30,000 · 50,000 · 100,000, 1 KRW = 1 credit) → confirm dialog «크레딧 충전» (Charge credits) → «결제창 열기» (Open payment window) → pay. Afterwards a dialog says «충전됐어요» (Charged) or «충전되지 않았어요» (Not charged) with the reason.
- **Sign out** («로그아웃» at the bottom of the account menu) goes straight to a full-screen «로그아웃 중…» (Signing out…) and then to the first page — no confirmation. If a take is still being saved it waits a few seconds first; takes that still couldn't be saved are removed without asking (the scene and its camera moves stay on the server, so you can record again). If the server can't be reached the screen goes away and «로그아웃하지 못했습니다» (Couldn't sign out) appears where you were.
- Making AI videos, 3D worlds and 3D assets costs credits. The price is shown on the button before you press it: «만들기 · N 크레딧» (Make · N credits).
- **Charging during the test phase uses test payments.** In the payment window pay with «카드» (Card) only — easy-pay services (KakaoPay etc.) may move real money.

---

## 2. Editor layout

Opening a scene shows the editor: a 3D stage in the middle, surrounded by five areas.

| Area | Contents |
|---|---|
| **Top bar** | product name (→ My scenes) · «씬 · 이름» (scene menu) · undo ↶ · redo ↷ · save badge · job chip (things being made) · account button |
| **Left rail** | «씬 구성» (Scene outline — cameras, objects & groups) · «라이브러리» (Library) · «결과물» (Results — takes and AI videos, see 13-5) · «?» (shortcut sheet) |
| **Right inspector** | opens when something is selected. Three sections — «선택한 것» (Selection) · «샷» (Shot) · «씬» (Scene); one open at a time |
| **«방향 표시» (Direction card), top right of the stage** | Orbit view only (moves left of the inspector when that is open). Circle: click X · Y · Z (or the faint −X · −Y · −Z dots) to look from that side (Z = looking straight down) — click the same one again for the opposite side; the orbit centre and distance stay. Drag the circle to orbit around the orbit centre in the middle of the screen (a dot and a vertical axis show it while dragging). «내 위치» (My position) X · Y · Z is always where your view is: type a number to move your view there (looking the same way, orbit centre moves with it, not undoable · ↑↓ 0.1 · Tab next). The floor shows the X axis (red) and Y axis (green) meeting at a dot at the origin. The card never appears in takes, stills or camera windows; the axis lines and dot belong to the floor grid and follow the «격자» (Grid) toggle |
| **Pill under the stage** | three view modes (Orbit · Shot view · Direct-drive recording) · «바닥» (Floor) toggle · «격자» (Grid) toggle — like «바닥», what you see is recorded: on shows the floor grid on the stage and in takes, stills and camera windows; off hides it everywhere (on by default) · «카메라 창» (Camera windows) |
| **Timeline (bottom)** | timecode · transport · «키프레임» (Add keyframe) · «키프레임 삭제» (Delete keyframe) · «녹화물 N» (Takes N) · «편집» (Edit) · «무빙 저장» (Save move) · «● REC» (REC) · «만들기» (Make) · zoom |

### 2-1. Scene menu («씬 · 이름»)

Click the scene name on the top bar. It lists the scenes saved in this browser («저장된 씬 없음» No saved scenes when empty); the open one is marked «●». Click a name to open it. Each row has «삭제» (Delete), which deletes that scene on all devices (deleting the open scene returns you to «내 씬»). «새로 시작» (Start over) is here too (15-1).

### 2-2. First-run hint and blocked buttons

- On first visit a «첫 안내» (first-run hint) pill appears at the top: drag = orbit · right-drag = pan · wheel = zoom · «만들기». ✕ «첫 안내 닫기» closes it for now; «다시 보지 않기» (Don't show again) hides it for good; bring it back via «?» → «첫 안내 다시 보기» (Show first-run hint again).
- A button that can't be used right now shows the reason as its text, e.g. «내보내는 중» (Exporting) or «영상 만드는 중» (Making a video); while busy, a reason pill also floats above the stage pill.
- Below 768 px width the camera windows are unavailable. A laptop-size screen or larger is recommended.

---

## 3. The three view modes

The first three buttons of the pill under the stage.

| Mode | Button · key | What | Notes |
|---|---|---|---|
| **Orbit** («둘러보기») | 1st button | the default building view | place objects, position cameras; paths and keyframe dots are visible |
| **Shot view** («촬영 화면») | 2nd button · C | see through the **active camera's lens** | frame border, composition guides, aspect, lens ruler, shutter. Editing overlays are hidden, except the gizmo of the selected object (never in takes or stills). Does not record |
| **Direct-drive recording** («직접 몰기 녹화») | 3rd button · R | fly freely in full screen and record live | mouse is captured (pointer lock). Space = start/stop recording (stopping pauses) · Esc = pause/settings/exit. Produces an mp4 take |

- In **Shot view** you can move the camera with W A S D / Q E and turn it with the arrow keys or left-drag (more than 4 px away from where you pressed). A plain click selects the object under it (as the shot camera sees it) and shows its gizmo; clicking empty space deselects, and 3D worlds are not picked here (select them in Orbit) — adjust it with 1/2/3 while watching the framing; W A S D still move the camera. The gizmo never appears in takes or stills. That pose only becomes a keyframe when you press «키프레임» (K). If keyframes exist and you just moved the camera, the «조작» (Transform) section and «키프레임» turn amber — unstamped moves are lost on playback.
- **Direct drive** counts down 3-2-1, then records with «● REC» (the pill reads «· Space/ESC 정지» Space/Esc to stop). Space or Esc stops the recording, pauses, and saves the take — while it saves, «취소» (Cancel) or Esc discards it. The pause panel shows «일시정지» (Paused) with «▶ 계속» (Continue) · «✕ 편집으로 나가기» (Exit to editor) and settings «비율» (aspect) · «fps» · «구도 안내선» (guides) · «바닥» (floor) · «격자» (grid). Recordings shorter than 0.3 s are discarded. On exit the camera returns to the pose at the playhead; the flight lives only in the take. If the browser cannot encode mp4 (H.264), the button is disabled with «이 브라우저에서 녹화 불가» (Recording not supported in this browser).

---

## 4. Stage controls

### 4-1. Mouse

| Action | Effect |
|---|---|
| Left click | select (moving more than 4 px counts as a drag) |
| Left drag | orbit around the point you pressed (an object or the floor — 3D worlds are not measured; pressing the sky keeps the current centre). The pressed point stays put on screen; a dot and a vertical axis line show it while dragging |
| Right drag · Windows Ctrl+left drag / Mac ⌘+left drag | pan (not Alt). There is no right-click menu |
| Shift+click · Shift+drag | multi-select (click = add/remove one · drag = everything the rectangle touches) |
| Wheel | move toward the point under the cursor — each notch goes 10% of the distance to what is under it (at least 5 cm; 1 m over the sky). Passes through objects, stops 20 cm above the floor. Does nothing on the stage in Shot view (use the lens ruler) |
| Middle drag | zoom (dolly) |

Pick priority: gizmo handle > keyframe dot > object > camera body > empty space (deselect). Cameras look like camcorders; **the lens tip is the camera position**. Inactive cameras are dimmed.

### 4-2. Keyboard (works with a Korean input method active)

| Key | Effect |
|---|---|
| W A S D | move forward / left / back / right |
| E / Q | up / down |
| Arrow keys | look around in place |
| Shift (while moving) | faster |
| C | toggle Shot view |
| R | enter Direct-drive recording (Esc to leave) |
| 1 / 2 / 3 | gizmo move / rotate / scale |
| Shift (while dragging a rotate ring) | turn in 45° steps from the current angle (10° → 55° → 100°) |
| F | frame selection — moves your view so the selection (all of it; a camera's body) fits in the middle of the screen, and makes it the orbit centre. View direction unchanged · not undoable · not in Shot view · does nothing when only a 3D world or hidden objects are selected (nothing to measure) |
| T | target the selection (makes it the active camera's target — the camera keeps looking at it). Press T again to release the target (same as «타겟 끄기» Target off — the camera keeps the direction it was looking). With another object selected, T switches the target to it. Was F before |
| K | stamp a keyframe at the playhead («키프레임») |
| Delete / Backspace | delete the selection — the selected keyframe if there is one, otherwise the selected objects (3D spaces too) or camera (not the last one), or the highlighted groups (only the groups — contents stay); same as ✕ in the scene tree · Ctrl/⌘+Z brings it back · **locked objects are not deleted** (✕ too) — «잠금 상태에서는 삭제할 수 없어요» (Locked objects can't be deleted) |
| Space | play / pause (inside Direct drive: start/stop recording) |
| Esc | deselect · stop shape drawing · close a window |
| Windows Ctrl+C / Mac ⌘C · Ctrl+V / ⌘V | copy the selection (objects, a camera, highlighted groups) · paste into this scene (0.5 m to the side) or **another scene** (same coordinates) — in the list it lands where new objects/cameras go (the highlighted group, or the group of what you selected; copied groups come back as new groups at the end); the pasted objects stay selected (a pasted camera only when no objects came along — selecting it makes it the active camera, like «＋») and one Ctrl/⌘+Z undoes it; poses you haven't recorded yet stay as they are; items whose files couldn't be loaded are left out («N개는 못 붙였어요»). Name-tag colour, lens, aspect, target and the current pose come along; **keyframes and motion do not**; locked/hidden are cleared; attachments only between things copied together; 3D spaces can't be copied. The copy lives only in this tab (switching scenes keeps it; reload or closing the tab clears it). Ctrl/⌘+D (old duplicate) is gone — use copy → paste |
| Windows Ctrl+G / Mac ⌘G · Ctrl+Shift+G / ⌘⇧G | group the selection («새 그룹», name box opens) · ungroup the highlighted group (see 5) |
| Windows Ctrl+Z / Mac ⌘Z | undo |
| Windows Ctrl+Shift+Z / Mac ⌘⇧Z | redo |
| Windows Ctrl+S / Mac ⌘S | save now |
| Windows Ctrl+wheel / Mac ⌘+wheel (over the timeline) | timeline zoom |
| ← / → (after clicking a row in «씬 구성») | fold / unfold that branch |
| Windows Alt+▸ / Mac ⌥+▸ (in «씬 구성») | fold / unfold all |
| ? | open the shortcut sheet (its top has «설명서 복사» Copy guide — see 17) |

- No stage shortcuts work while typing in a field, in dialogs, while the Make window, the Library, the Results window or the Result viewer is open, or during export.
- **In Shot view these keys work:** C · R · K · Space · 1/2/3 · Delete (the selected keyframe, or selected objects — never the camera you are looking through) · Ctrl/⌘+Z · Ctrl/⌘+Shift+Z · Esc (deselect) · Ctrl/⌘+S. Everything else (F, T, Ctrl/⌘+C, Ctrl/⌘+V, Ctrl/⌘+G, Ctrl/⌘+Shift+G …) does nothing there — leave Shot view (C) first. In Direct drive: W A S D / Q E, mouse look, Space (start/stop recording), Esc (pause).
- With the cursor in a text field, undo applies to that field's text.

---

## 5. «씬 구성» (Scene outline) — first rail button

One list of cameras, objects and groups (older scenes open as cameras first, then objects). The header has «그룹 만들기» (Make group — same as Ctrl/⌘+G) · «카메라 추가» (Add camera, «＋») · ✕ «판 닫기» (Close panel).

- **Cameras**: «＋» (Add camera, in the header) adds a camera 1 m in front of the camera you are looking through, facing the same way (lens and aspect copied from the active camera) · click a row = select + make active · double-click = rename · window button = open/close its camera window · «✕» = delete (the last camera cannot be deleted). The active camera's row shows «· 활성» (· active).
- **Objects**: click = select · Shift+click = add/remove (no range select) · double-click = rename. An empty scene shows «씬이 비어있음» (Scene is empty).
- **Groups** («그룹» — dashed-square icon; for tidying only: no position, no keyframes, separate from attaching, one level — no groups inside groups): Ctrl/⌘+G groups the selected objects or camera into «새 그룹» (New group) and opens the name box right away (it opens the «씬 구성» panel if closed); with nothing selected it makes an empty group at the top; with only group rows highlighted it says «그룹은 그룹으로 묶을 수 없어요» (groups can't be grouped). A group row shows ▾ fold · name (bold) · how many it holds · lock · hide (all objects inside; pressed when all of them are on; disabled without objects) · «⋯» («오브젝트 모두 고르기» Select all objects — objects only · «이름 바꾸기» Rename · «그룹 풀기» Ungroup, Ctrl/⌘+Shift+G · «지우기» Delete — removes only the group, its contents stay in place). Clicking a group row highlights **only that row** (nothing inside is selected, the inspector stays closed); Shift+click highlights several; ←/→ on a clicked group row folds/unfolds it; closing the panel clears the highlight. New cameras and objects go into the highlighted group (two or more highlighted → outside any group), otherwise into the group holding what you selected (a placed object stays selected, so the next one goes to the same group) — cameras at the top, objects at the end; outside any group → cameras at the top of the list, objects at the end; nothing selected → cameras into the active camera's group, objects outside any group. Pasting (Ctrl/⌘+V) follows the same rule. Things made or pasted from text/MCP go outside any group.
- **Dragging rows**: drop **between** rows to reorder or put into a group — the rows below slide down to open a dashed slot «○○ — 여기 들어간다» (goes here) and the target group gets a light orange panel. Drop **onto the middle** of an object row to attach (orange outline + «붙이기» Attach). Group rows only move between groups (never into one). Dropping an attached object between rows keeps it attached and only changes its group; dragged into its parent's group it goes back under the parent, and the slot says so (e.g. «사람 — 자동차 밑으로 들어간다» — goes under the car; no slot there if it is already under the parent; when dragging several that include such an object there is no slot in the parent's group or under the list — drag one at a time or ungroup first) — detach it in the box under the list. The lower part of a group's last row = the end of that group; the empty space under the list = the very end, outside any group. Moving a parent brings its attached children in the same group; an object attached to a parent in another group stays in its own group with a link icon («○○에 붙음»).
- A camera riding an object shows «OO에 붙음» (attached to OO) under its row. ✕ «판 닫기» (Close panel) closes the outline.
- **Row buttons** (always visible): ⬇ «앉히기» (Drop to floor / onto the object below) · 🔒 lock · 👁 hide · ✕ delete (no duplicate button — duplicate with Ctrl/⌘+C → Ctrl/⌘+V). Only active states (locked, hidden, camera window open) get an orange outline.
- With several rows selected, ✕ · 👁 · 🔒 · ⬇ apply to all selected rows (pressing them on an unselected row affects only that row).
- Long names are truncated with «…»; hovering shows the full name (attached objects show the full chain, e.g. «자동차 › 사람 › 모자»).
- **Folding**: objects attached to other objects are indented (up to 2 levels; from level 3 shown as «⛓ number»). Only top-level parents have ▸; when folded, the child count is shown. Everything starts unfolded and fold state is not remembered. Selecting an object (also on the stage) unfolds its branch and scrolls to it. While dragging, hovering over a folded parent for 0.6 s unfolds it.
- Give objects clear names («빨간 코트 여자» woman in red coat rather than «사람 1») so they are easy to find, and use the same words in the video description.

---

## 6. «라이브러리» (Library) — second rail button

A storeroom of things you put into a scene, with three tabs and a search box. Takes and AI videos are not here — they are in «결과물» (Results, 13-5).

| Tab | Contents | Bottom button |
|---|---|---|
| «에셋» (Assets) | your 3D assets (made in «만들기» — see 13-3) + built-in objects — 사람 person · 여자 woman · 자동차 car · 트럭 truck · 개 dog · 말 horse · 나무 tree · 바위 rock · 집 house · 빌딩 building — plus basic shapes «기본 도형»: 상자 box · 원기둥 cylinder · 구 sphere · 원뿔 cone · 평면 plane · 원 disc | «놓기» (Place) · «도형 그리기» (Draw shape) |
| «3D 공간» (3D worlds) | your 3D worlds (this scene → other scenes → no scene) + built-in ones | «놓기» (Place) |
| «무빙» (Moves) | saved camera movements | «새 카메라로» (As new camera) |

- Click a tile to select, then use the bottom button. **Double-click** a tile to act immediately. Assets and 3D worlds can also be **dragged onto the stage** (placed where dropped); «놓기» places it **5 m in front of the camera you are looking through**, set down on the floor or object below that point (fixed distance — in Shot view, that shot camera). Dropping in Shot view measures with the shot camera too.
- The first tile of your own items is a dashed **＋** — «3D 에셋 만들기» (Make 3D asset) on Assets, «3D 공간 만들기» (Make 3D world) on 3D worlds. It is there even before you have made anything, and hidden only under «기본 제공». Clicking it closes the Library and opens the Make window on that tool.
- Scope chips: Assets «전체 · 내 것 · 기본 제공» (All · Mine · Built-in — «전체» shows yours first, then built-ins, basic shapes last); 3D worlds «전체 · 내 것 · 이 씬» (All · Mine · This scene).
- When deleting a stationary asset or placed 3D world, sparse camera keyframes are converted to world space too: missing axes use that channel’s interpolation; position and rotation are written together, while lens keys stay where they were. The path between keys follows the editor’s detach behavior. Sparse poses controlled by a target and moving parents remain deferred on the server.
- Asset tiles show a still picture of the actual 3D object. ✕ on your own 3D asset deletes it: «지우면 쓰는 씬에서도 빠집니다» (also removed from scenes using it — the dialog names them).
- The number beside each tab is the total count. Search placeholder: «이름·태그» (name · tag). The footer also has «취소» (Cancel).
- While dragging an asset, the stage shows «놓을 자리» (drop here) or «여기엔 못 놓아요» (can't drop here).
- 3D world tiles show badges «이 씬 · 놓여 있음» (placed in this scene — every world you have placed shows it, since a scene can hold several) and «기본» (built-in). ⓘ «자세히 보기» (Details) opens the Result viewer. ✕ deletes: on your own world «지우면 쓰는 씬에서도 빠집니다» (also removed from scenes using it); on a built-in world it only deletes the downloaded file from this browser.
- Moves saved by an incompatible version are greyed out with «이 버전에서는 못 여는 무빙입니다» (This move can't be opened in this version).
- 3D worlds still being made or failed appear as status tiles at the front of their scene group (select a failed one and «보기» to see why). Videos are not in the Library — a waiting video is cancelled from its tile in «결과물» (Results, 13-5).
- If a 3D world finishes while the window is open, its tile updates without reopening.
- If part of a list fails to load, a one-line notice appears in place, e.g. «내 에셋을 못 읽었어요 · 다시 읽기» (Couldn't read my assets · Retry); built-in assets and shapes still work.

---

## 7. Placing and handling objects

### 7-1. Placing

- Take objects from Library «에셋». Built-ins are placed at **real-world size** (height: person 1.75 m · woman 1.65 m · car 1.45 m · truck 3.20 m · dog 0.60 m · horse 1.65 m · tree 6 m · rock 1.2 m · house 6 m · building 24 m).
- Basic shapes are placed at 1 m; resize with the gizmo. Shapes are grey and named «상자 1», «원기둥 1» …
- Your 3D assets are placed at **roughly real-world size** (the model's guess, or 1 m if unknown); resize with the gizmo.

### 7-2. «도형 그리기» (Draw shape) — make a shape at the exact size

1. Library «에셋» → «도형 그리기» at the bottom. The window closes and a badge appears under the stage; pick the shape there (you can switch while drawing).
2. Click the floor = first corner → move to size the rectangle (width × depth, snaps to 10 cm) → click.
3. Move up for height → click = done. **Plane and disc have no height step.**

- Double-click in place = default 1 m.
- While drawing, the badge shows the size live: «가로 … × 세로 … × 높이 …» (width × depth × height).
- The tool stays on for repeated drawing (the badge reads «ESC 취소»). Turn it off with Esc, or with the Library button, which reads «도형 그리기 — 그리는 중» (Draw shape — drawing) while active.
- Use «평면» (plane) for floor lines, posters, window glass (thin boxes get a 10 cm minimum thickness). Upright planes are skipped by «앉히기».
- Not available in Shot view or Direct drive. The floor grid is 1 m (bold every 10 m), with a 10 cm grid up close.

### 7-3. Handling

| Goal | How |
|---|---|
| Move / rotate / scale | select, then 1 / 2 / 3 (or «이동 (1)» Move · «회전 (2)» Rotate · «크기 (3)» Scale in the inspector's «트랜스폼» Transform) and drag the handles. Cameras have no scale. The centre scale handle grows when dragged up-right |
| Exact numbers | «트랜스폼» (Transform) X Y Z fields — cameras: «위치» Position · «회전» Rotation (all three typed — «회전 Z» pan · «회전 X» tilt up/down · «회전 Y» roll; with a target on, X and Z are set by the target and read-only, and «회전 Y» = roll is typed) · objects: «위치» · «회전» · «크기» Size, all typed. A value that already moves (has keyframes) is stamped at the playhead as you change it (an existing key on the same frame is edited); a value that does not move just changes. Clearing a field or typing only «-» does not move anything |
| Drop to floor | ⬇ «앉히기» in «씬 구성» |
| Duplicate | copy → paste: Windows Ctrl+C → Ctrl+V / Mac ⌘C → ⌘V (also into another scene) |
| Lock · hide · delete | 🔒 · 👁 · ✕ |
| Rename | double-click the row in «씬 구성» (the inspector «이름» only displays the name) |
| Colour tag | «색» (Colour) in the inspector (7-4) |
| Several at once | Shift+click · Shift+drag (7-5) |

**Axes on screen** (every X Y Z field, channel row and the Direction card): **Z is up (height)**, X is right, Y points into the scene — the same as Blender. Text/MCP functions keep the scene's internal axes (Y up).

For text/MCP object transforms, each changed channel that already has a keyframe is stamped at the playhead (snapped to a frame; an existing key there is updated). Channels without keys only change their current value. Each call is a separate undo step. `rotationDeg` keeps its XYZ Euler degree convention; the internal rotation channels use Y → X → Z radians.

### 7-4. Colour tags — mark objects with a colour

- Selecting an object shows a «색» (Colour) row in the inspector. The default is no colour; nothing is assigned automatically. Pick one of 12 palette colours or any colour via «＋» (accepts a `#RRGGBB` value). «⃠» «색 없음 (기본)» (No colour, default) removes the tag.
- The colour is painted onto the object in takes. If you use colours as labels for the AI, say so in the video «설명» (description), e.g. "the red box is a sofa".
- Duplicates do not copy the tag.

### 7-5. Multi-selection

- Stage: click = only this · Shift+click = add/remove · Shift+drag = everything the rectangle touches (except hidden/locked). «씬 구성»: Shift+click. Esc = clear.
- Cameras and objects are never mixed in one selection.
- One shared handle appears at the centre: drag to move together, rotate around the centre. **Scaling is always uniform** with any handle.
- The inspector shows only «N개 선택됨» (N selected); name, colour and effects can only be edited with a single selection.
- Dragging a multi-selection never edits existing keyframes.

---

## 8. «3D 공간» (3D worlds) — real-looking environments

A walkable 3D environment made from photos/video, used instead of a grey set.

### 8-1. Laying one into the scene

1. Open Library → «3D 공간».
2. Pick a built-in one or yours and choose **quality**: «가볍게» (Light) · «보통» (Standard, default) · «원본» (Original). Tiles show the real file size. Already-downloaded qualities place instantly («바로 올립니다»).
3. Press «놓기» (Place), double-click the tile, or drag it onto the stage. Place puts it on the floor **5 m in front of the camera you are looking through** (the shot camera in Shot view); drag uses the dropped world surface point, including another world’s surface. The first world follows the same rule. The new world is selected. It blooms out of a small bubble over about 2 seconds.

- **Add several 3D worlds, with no limit or count warning.** Existing worlds stay in place. One Undo removes the last placement. Rooms can overlap when placed from inside another room; move them with the gizmo. Many worlds can slow the device down.
- While downloading a new quality, the job list shows **«3D 공간 받는 중»** (Downloading 3D world), without a blocking overlay. The row disappears on completion or failure. A previously downloaded quality is reused.
- The world's facing direction is not aligned automatically; match the camera to the original photo's viewpoint by hand.
- Opening the scene on another device downloads the world from the server (no indicator; it appears when ready).
- Failures are reported by dialog title: «3D 공간 받기 실패» (download failed) · «3D 공간 삭제됨» (deleted on the server) · «3D 공간 열기 실패» (this device cannot open it). The tile stays; press it again to retry. When opening a scene: a top banner «3D 공간 받기 실패 · name [다시 받기]» (Retry) or, if deleted, «3D 공간 삭제됨 · name [씬에서 빼기]» (Remove from scene — removes only the deleted worlds). With several 3D worlds, the ones that did download still open.
- In scenes with a 3D world, camera windows refresh a little slower (about 20 times per second).
- A world without size data shows «⚠ 이 3D 공간은 크기 정보가 없어 실제 치수와 다를 수 있어요» (this world has no size data — real-world sizes may be off); check the scale against a person before stamping cameras.

### 8-2. Creating a new one — see 13-3 («만들기» window).

---

## 9. Cameras — making the movement

### 9-1. Basics

- A scene can have several cameras (separate shots). Add with «＋» (Add camera) in the «씬 구성» header.
- The **active camera** is what you edit, preview, export and make videos from. Click its row in «씬 구성» or its body on the stage to make it active.
- Per camera: aspect ratio, lens, path, easing, keyframes, target, motion. Per project: fps (24, 30 or 60, default 30 — every camera follows it; 24 is exactly 24, not 23.976). Per scene: lighting, background colour, floor colour.

### 9-2. Building a movement with keyframes

1. Select the camera.
2. Click the timeline ruler to put the playhead at a time.
3. Position and aim the camera with gizmo 1 (move) and 2 (rotate), or fly it in Shot view (C) with W A S D.
4. Press «키프레임» (Keyframe, K) — the current pose is stored as a keyframe at that time.
5. Repeat 2–4 at other times. Play with Space.

**One rule: the selected keyframe = the current camera pose.**

- Clicking a keyframe dot (path dot on the stage or diamond on the timeline) moves the playhead there and puts the camera in that pose; a dot of another camera switches to that camera. Clicking the same dot again deselects it.
- With a keyframe selected, K **updates** it.
- Drag a dot left/right to retime it.
- Delete the selected keyframe: Delete · «키프레임 삭제».
- Switching the active camera puts the new camera at its pose for the playhead time.

### 9-3. Easing — speed feel per segment

- With two or more keyframes, a **pill** appears in the middle of each segment. Click a segment to choose «자동» (Auto — new segments) · «직선» (Linear) · «양끝 천천히» (Ease in-out) · «천천히 시작» (Ease in) · «천천히 끝» (Ease out).
- All segments at once: «모든 구간에» (Apply to all segments) at the bottom of that popover — applies this segment's current choice to every segment of that camera or object.
- Each value (position X · Y · Z · rotation · lens · scale) is interpolated on its own. «자동» keeps the speed flowing through keyframes (starts from rest at the first key and stops at the last) and makes a curved path; the other four make straight paths. At an L-shaped key (one axis stops, another starts) «자동» briefly stops and turns sharply — add a key just before and after the corner to round it.
- Old scenes keep their keyframes; only the names move: «부드럽게» → «양끝 천천히» · «등속» → «자동» on a curved path / «직선» on a straight path (a curved path with only two keyframes becomes «직선» — same path and speed as before).
- You cannot scrub by dragging the lane background over a segment; use the ruler.
- **«끝과 처음 잇기» (Join end to start)** — for a move that comes back to where it started (a circle, a lap of a room, a figure 8). Turn it on in the inspector «모션» section (button with the two-keys-and-a-bridge icon; needs 3 or more keyframes; locked while attached). The camera or object then no longer stops at the first and last key — the seam flows. Turning it on makes the last keyframe a copy of the first: if the last key is near the start its position snaps there; if you never came back, a new keyframe at the start position is added after the last one (the move gets longer by one average key gap). While it is on, moving the first or last key moves the other too. Rotation is not snapped (a 360° pan keeps turning). It plays once — it does not repeat. When on, a small bridge icon sits right after the last key on the timeline; click it to turn it off. ⌘Z undoes it in one step. A hand-keyed circle can still look slightly lumpy — for an exact circle use «오빗» → «한 바퀴» (below).

### 9-4. Target — what the camera looks at

The «타겟» (Target) block in the inspector's «샷» (Shot) section.

- **Pick an object**: choose it from «오브젝트 없음 ▾» (No object); the camera keeps looking at it, even as it moves. Shortcut T = make the selected object the active camera's target.
- «타겟 켜기 / 끄기» (Target on / off): turning it on starts the point 5 m in front of the camera. When off, the rows below (coordinates · offset · screen position · Roll) are hidden. The way back is «타겟 켜기».
- **Coordinates**: type numbers or drag the cyan ring on the stage. Editing coordinates while attached to an object detaches it.
- **«중심에서» (Offset from centre)** (object targets only): where on the object to look (m). Empty = centre of its box. The offset rotates with the object. Dragging the cyan ring changes this value.
- **«화면 자리» (Screen position)**: drag the dot inside the small aspect-shaped box to place the subject on screen; the camera keeps that framing. Snaps to thirds and centre (double-click = centre; arrow keys; Shift).
- **Tilt** (the old «Roll°» field, now «회전 Y» in «트랜스폼» — rotation Y = roll): camera tilt. While aiming at a target, gizmo 2 becomes the roll ring and the inspector button reads «기울이기 (2)» (Tilt).
- Hovering an object in the target (or follow) picker highlights it on the stage; hidden objects are tagged «숨김» (hidden).
- ⭐ **With no keyframe selected, an animated target (any target keys) is written at the playhead frame only.** An existing key in that frame gains the target; a new key contains only the target. Object picking / T, on / off, coordinates, offset and screen position follow this rule. The header says «재생헤드» (Playhead) and shows that time's value. Playback stops before editing; one undo removes the value change and the new key together.
- **A static target changes the whole shot's value without adding target keys.** The header shows «키프레임 3개 모두» (All 3 keyframes). Selecting a keyframe edits only that key; other keys keep their targets. Turning a target off preserves the direction seen at that time. Rotation X / Z (tilt / pan) are controlled by the target while it is on. Rotation Y (roll) / the tilt ring keep their existing behavior.
- A keyframe stamped with K does not record its own target — it follows the targets of the keyframes around it (if the whole shot has one target, that one). To make just that keyframe look elsewhere, select it and change the target.
- A fixed camera with no keyframes but a target keeps its position and only turns to follow the subject.

### 9-5. Lens · aspect · stills

- **HUD under the stage** (visible in Shot view): aspect (16:9 · 4:3 · 1:1 · 3:4 · 9:16 · 21:9 — the six Seedance accepts) · recording fps «30fps ▾» (24, 30 or 60, default 30; scenes saved at 24 open as 30 — keyframe times are in seconds, so the move is unchanged; 60 makes the take about twice as large and recording takes about twice as long; the credit price is the same) · lens ruler (drag · wheel · ←→; Shift = steps of 10) · shutter ◉ (save the current frame as PNG).
- If the active camera has any lens keys, editing the lens stamps it at the playhead (nearest frame); with no lens keys, only the value changes. Repeated edits on the same camera and frame undo in one step; moving the playhead to another frame separates the steps.
- The lens (focal length 14–135 mm) changes the field of view; the wheel moves your viewpoint closer — different operations.
- To type an exact focal length, click the «NNmm» value on the HUD lens ruler.
- The HUD pill also has the «구도 안내선» (Composition guides) toggle. «구도 안내선», «바닥» (Floor) and «격자» (Grid) are view settings and are not saved.
- Inspector «샷» (Shot) holds two blocks: «타겟» (Target, 9-4) and «뷰» (View) with one button, «현재 뷰로 스냅» (Snap to current view — move the camera to where you are looking from).
- When a camera is selected, «트랜스폼» may show hints such as «⚠ 이 자리는 어느 키프레임에도 없습니다…» (this pose is not in any keyframe — stamp it) or «재생 중이라 값을 잠시 감췄어요…» (values hidden during playback; clicking a field pauses playback).

---

## 10. Motion and following

### 10-0. Moves — nine ready-made camera moves

Select a camera and the inspector «모션 — 카메라» shows «무빙» (Moves) above the effects: a 3 × 3 grid of pictures. Unlike an effect (which you turn on and leave running), a move **creates keyframes** for you.

1. The nine: «돌리 인» (Dolly in — move toward the subject) · «돌리 아웃» (Dolly out — move away) · «트럭» (Truck — slide sideways) · «페데스탈» (Pedestal — move up/down) · «팬» (Pan — turn left/right in place) · «틸트» (Tilt — turn up/down in place) · «오빗» (Orbit — circle the subject) · «크레인» (Crane — rise while pulling back) · «돌리 줌» (Dolly zoom — move in while the background stretches).
2. Click a tile: a settings card opens under it — subject · length (default 4 s) · strength (조금 / 보통 / 많이 = little / normal / a lot; «오빗» also has «한 바퀴» = full turn, 360° — keys every 7.5°, constant speed, ends exactly where it started, inserted with «끝과 처음 잇기» on) · start (= the playhead) · a one-line summary (e.g. «6.2m → 3.1m · 4초») · «▶ 미리보기» (Preview) · «넣기» (Insert). Click the same tile again to close it.
3. «넣기» creates ordinary keyframes on the timeline (one ⌘Z removes them all) and shows «돌리 인 넣음». If the camera already has keyframes you are asked «키프레임을 지우고 넣을까요?» (Delete the keyframes and insert?) first.
4. The five moves that use a subject (Dolly in · Dolly out · Orbit · Crane · Dolly zoom) show a ⊕ point 5 m ahead when there is no subject (drag it to move; it disappears when the card closes). «트럭» · «페데스탈» · «팬» · «틸트» have no subject row and no ⊕: «팬» and «틸트» release the target and turn from the direction you were looking (⌘Z restores the target); «트럭» and «페데스탈» keep watching the target if there is one.

### 10-1. Effects — repeating motion (handheld · float · spin · roll)

Keyframes say "from here to there"; an effect is "a repeating texture" (a car moves while its wheels spin).

1. Select one camera or object; the inspector «선택한 것 › 모션» shows «효과» (Effects — "click to turn on · the row stays") as a 3 × 3 grid of pictures that is always open: «손으로 든 느낌» (Handheld; on a camera = handheld shake) · «둥둥 떠 있기» (Float) · «제자리에서 빙글» (Spin in place) · «바퀴처럼 구르기» (Roll like a wheel), then your own presets marked «내 것» (Mine). Hover a tile for a plain-words hint. Past nine tiles a «더보기 · N» (More) bar appears; «접기» (Less) folds it.
2. Click a tile to turn the effect on (● and an orange ring); its row appears below. Click the tile again, or ✕ in the row, to turn it off.
3. Set strength with the row's slider (described in words, e.g. «1초에 1바퀴» one turn per second). «자세히» (Details) exposes axis · degrees/sec · amplitude · count.
4. Check with «▶ 미리보기 2초» (Preview 2 s — plays every effect on that subject together). «내 프리셋으로 저장» (Save as my preset) to reuse in other scenes.

- Effects can be stacked — a built-in tile and your own tile of the same kind turn on separately. The preview button toggles to «⏸ 미리보기 정지» (Stop preview).
- «자세히» fields: «도는 축» (axis: 팽이 top / 바퀴 wheel / 굴림 roll) · «1초에 N 도» (degrees per second) · «흔들 폭 m» (shake amplitude) · «1초에 N 번» (times per second) · «위아래 폭» (vertical amplitude) · «왕복 시간 초» (round-trip seconds).
- Hover one of your own tiles to show ✕ and delete it (confirm «「name」 효과를 삭제할까요?»). The four built-in effects cannot be deleted. An effect you turned on from a deleted preset stays, shown on the built-in tile of the same kind.
- An effect without keyframes is visible **only during playback** (not while scrubbing). Playback length defaults to 3 s; with keyframes, their length wins.

### 10-2. Following (attach) — make one thing ride another

- **Method 1**: inspector «따라갈 대상» (Follow target) → «없음 ▾» (None) → pick the leading object.
- **Method 2**: in «씬 구성», drag an object **onto the middle of another object's row** (orange outline + «붙이기»; dropping between rows reorders instead — see 5). Dragging several selected rows attaches them all. To detach by dragging, drop an attached object on the green box that appears under the list: «여기에 놓으면 떼집니다» (Drop here to detach).
- Once attached, the «⛓ name» chip changes the target and «떼기» (Detach) detaches.
- Cameras attach only via «따라갈 대상», not by dragging. Nothing can be attached to a camera.
- Position and rotation follow; **scale does not**. Select both and scale to scale both.
- While attached, the object cannot stamp its own keyframes; existing ones are put to sleep (hatched, «OO를 따라감» following OO) and come back when detached.
- Effects still work while attached — camera on a car + handheld = chase shot. A camera riding a car with target off = bonnet cam; with a target = follows while watching the subject.
- Chains (car › person › hat) are allowed; cycles are not. Deleting the leader leaves followers in place.

### 10-3. Moving objects (object keyframes)

**Channel rows:** the ▸ before a lane name opens one row per value (camera: «위치 X · Y · Z» Position · «회전 Z · X · Y» Rotation — pan · tilt · roll · «렌즈» Lens · «타겟» Target; object: position · rotation · «크기» Scale X · Y · Z); ▾ closes it. The number on the left of a row is the value at the playhead (rotation in degrees) — click it to type a new value (Enter confirms, Esc cancels, empty or a lone «-» changes nothing). If that value already has keyframes, only that value is keyed at the playhead (the others keep their own keys); if not, the value just changes. The row-end ◇+ «이 값만 찍기» (Key this value) stamps the current value at the playhead; its shape stays the same. On the first stamp, channels without any keys are also seeded from the current pose. Drag a channel ◆ to move only that value; drag a summary ◆ to move all values at that time. Dropping a channel on an existing key merges it there; other values at the old key remain. Deleting the last key for a channel preserves its value at the nearest remaining key. The bottom «타겟» row names each keyed target. K does not stamp targets: use its ◇+, then T to change the target at that time. The ◆ on a row marks where that value has a key; hover a ◆ on a closed lane to see what was keyed («찍힌 값: 렌즈» keyed: lens). With a target on, «회전 X · Z» and their ◇+ buttons are disabled («타겟이 정한다» the target decides). Clicking a value on another camera's lane switches to that camera.

**Gizmo drags key on release:** once a camera or object has keyframes, releasing a gizmo drag keys **only that mode's values** at the playhead (move = position, rotate = rotation, scale = scale) — no amber, and ⌘Z undoes it in one step. Several objects dragged together are keyed one by one, undone together. Without keyframes the value just changes. Driving the camera (W A S D, arrows, dragging in Shot view, Direct drive) still turns amber until you press «키프레임» (K).

With an object selected, «키프레임» becomes «「name」 키프레임» (Keyframe for "name"). Stamp the object's position at several times like a camera: a lane for that object appears on the timeline and it moves. Objects default to linear easing; hovering a segment shows speed (e.g. «1.9 m/s · 빠른 걷기» brisk walk). A lane of an attached object is labelled «OO 위» (on OO).

---

## 11. Saving and reusing camera moves

- Save a camera movement under a name: «무빙 저장» (Save move) on the timeline bar (disabled without keyframes; asks before overwriting the same name).
- Reuse: Library «무빙» → select a tile → «새 카메라로» (As new camera) (double-click = immediately) · ✕ on a tile = delete.
- Stored: keyframes (position · target · roll · focal length) · easing · aspect · motion. fps is unchanged.
- A new camera is created; the current camera is untouched. Duplicate names get numbers («느린 오빗 2»).
- Moves aren't tied to a scene — you can open them in any scene.

---

## 12. «카메라 창» (Camera windows) — watch several cameras

- Small floating windows over the editor show other cameras' pictures. One window per camera, **up to 4**.
- Open from the «카메라 창» menu on the pill under the stage (toggle per camera · «모두 닫기» Close all) or the window button on a camera row in «씬 구성».
- Each window shows exactly what that camera sees **at the playhead time** (no editing overlays).
- Clicking a window's picture makes that camera active. Hovering shows «크게 보기» (Enlarge — that camera's Shot view) · «접기» (Collapse; a collapsed window shows «펼치기» Expand) · «닫기» (Close). On the active camera's window these buttons are always visible.
- Drag the title bar to move; drag the bottom-right corner to resize (keeps aspect, up to half the stage). Windows snap to edges and to each other.
- Layout is not remembered (closes on reload or scene change). Hidden during Direct drive; frozen during mp4 export (never recorded into the video).
- If the graphics memory runs out, the windows close by themselves with «그래픽 메모리가 모자라 카메라 창을 닫았어요» (closed for lack of graphics memory); open fewer windows.

---

## 13. Timeline · recording · making

### 13-1. Timeline

- One lane per camera; **only the active lane is editable**. Clicking another camera's lane or name switches to that camera (clicking one of its dots also jumps to that keyframe).
- Lanes have two layers — top strip = aim (target), bottom = keyframes. The name column shows «키프레임 3» (3 keyframes) and motion info.
- Bar: left timecode (min:sec:frame) · centre transport (start · previous keyframe · play · next keyframe · end · frame back/forward · loop) · «키프레임» · «키프레임 삭제» · right «녹화물 N» · «편집» · «무빙 저장» · «● REC» · «만들기» · «자석» (Magnet) · zoom.
- Play (Space) starts **from the playhead**; at the end it starts from 0. With «반복» (Loop) on, playback goes back to **where it started**. «● REC» always records start to end.
- The timecode shows current / total time.
- Zoom: «축소» (Zoom out) / «확대» (Zoom in) buttons · Windows Ctrl+wheel / Mac ⌘+wheel · middle drag = pan · «전체 맞춤» (Fit all) = zoom all the way out. Zoom in goes up to **24 px per frame**: the ruler then ticks every frame, shows the time every 5 frames and a bold tick every second; «확대» greys out at the limit.
- «자석» (Magnet, on by default): dragging the playhead snaps it to a keyframe within 8 px. Dragging a keyframe does not snap — it moves on the frame grid only.
- Drag the border between stage and timeline to change its height (double-click = default; with it focused, ↑/↓ also resize).
- Switching during playback to a camera with neither keyframes nor motion stops playback (length 0).

### 13-2. Recording — making an mp4 take

- **«● REC» (REC)**: draws the active camera's keyframed move frame by frame and saves it as a take (mp4) — not real-time, so the take is smooth even on a slow computer. While it runs the button reads «REC 42%». The screen is locked during export; progress shows as a row in the job list at the top right (it opens by itself and stays open while recording): the take's name, «녹화 중 · 42%» (Recording · 42%), a bar, time left · Esc, and «취소» (Cancel). When it ends, the row shows «저장 중» (Saving) while the take is saved to the server, then «완료 · 녹화물» (Done · take) with a green check and «결과물에서 보기 ›» (View in Results — opens the Results window with that take selected; clicking the row does the same). If the save fails it shows a red ! «저장 실패» (Save failed) and «다시 저장» (Save again) — the copy on this device stays; rows still saving are never cleared by the three-row rule. A failed recording shows «녹화 실패» (Recording failed) with a red !; «닫기» (Close) removes it (the row lives only in this tab and is gone after a reload). «취소» (Cancel) or Esc discards the partial video only, and leaves no row.
- **Direct-drive recording (R)**: see section 3.
- **«녹화물 N» (Takes, film icon)**: N counts this scene's takes. It opens «결과물» (Results, 13-5) on this scene's «녹화물» (Takes) with the newest take selected.
- **«녹화물 편집» (Edit take)**: open it with «편집» (Edit) right next to «녹화물 N» on the bar — it opens this scene's newest take (blocked with «녹화물이 없어요» (No takes yet) when there are none) — or with «편집» at the bottom of the Results window. «바꾸기» (Change) on the preview picks another take. The preview plays only the section you keep, and the bar shows a strip of frames. Drag either end of «남길 구간» (Section to keep), or type start · end as m:ss:ff; ‹ › and ←/→ move one frame, Shift+←/→ one second, «전체» (All) resets (2 s or more). The name defaults to «original name · 2.0–9.0초» and can be changed. «새 녹화물로 저장» (Save as new take) keeps the original and adds a new take; edited takes show a scissors icon before the title and have no «키프레임으로 편집» (do that on the original). Esc or ✕ closes it.
- Recording is mp4 (H.264) only. If the browser cannot encode it, the button is disabled from the start with «이 브라우저에서 녹화 불가». Use a recent Chrome or Edge.
- Takes are **saved to the server** in the background when a recording finishes (with a first-frame picture; failed saves retry by themselves), so a saved take shows up on any device you sign in on and stays after you sign out (a take still being saved when you sign out is lost). Deleting a take moves it to the server trash for 30 days. Making a video copies the saved take on the server — nothing is uploaded again (a take that could not be saved is uploaded from this browser instead).

### 13-3. «만들기» (Make) window

Open with «만들기» on the timeline bar or «영상 만들기» (Make video) at the bottom of the Results window with a take selected. The «만들 것» (What to make) chip at the top switches type.

**«영상 · 무빙 따라 만들기» (Video — follow the move)**

1. «무엇으로» (Input) on the left holds the take (2–30 s · 24–60 fps). «바꾸기» (Change) picks another take. To trim a take, use «편집» (Edit) on the bar or in the Results window first («녹화물 편집» above).
2. «참고 이미지» (Reference images, optional): jpg · png · webp — to match a person or mood.
3. Optionally write the desired video in «설명 (선택)» (Description, optional), e.g. "At sunset a person stands in a sunlit living room. The camera slowly trucks sideways." (Korean or English). Type «@» to name what you put in: the take is @Video1, reference images @Image1, @Image2 … in the order added.
4. Choose quality (e.g. 480p · 720p · 1080p) and «소리도 함께 만들기» (Generate sound too). A «모델» (Model) picker appears only when more than one model is available. **Length is not chosen**: it is the take's length, clamped to 4–30 s («N초 · 무빙 길이» N s · move length). A move shorter than 4 s still makes a 4-second video and shows «4초 · 최소 길이» (4 s · minimum length). Reference images can be removed with ✕. «남은 크레딧 N» shows your balance.
5. Press «만들기 · N 크레딧». It is submitted immediately (no confirmation dialog).
6. Status: **«기다리는 중» (Waiting) [취소]** (cancelling returns the reserved credits) → **«생성중» (Generating)** (cannot be cancelled) → **«완료» (Done) [보기]** (play · download).
7. Failures read «정책 위반으로 인한 실패» (Failed: policy violation) or «일시적 문제로 인한 실패» (Failed: temporary problem). When review rejected one of your files, the line names it, e.g. «@Image1 검수 실패» (@Image1 failed review) or «넣은 영상 검수 실패» (your video failed review). The line «소비된 크레딧은 반환되었습니다» (credits returned) appears only when they were actually refunded; «크레딧 확인 중» (checking credits) means billing is still being confirmed.

- The button is blocked with a reason when it can't run, e.g. «먼저 무빙을 촬영해 주세요» (Record a move first) or «무빙이 너무 짧아요 (2초 이상)» (Move too short — 2 s or more) or «30초 이하로 줄여 주세요» (Shorten to 30 s or less — trim it with «편집» on the bar).
- **What the video follows** (the model is Seedance 2.5):
  - **Aspect = the take's aspect.** It cannot be changed in this window — set it in Shot view (9-5) before exporting the take, e.g. 9:16 for a vertical video.
  - **Always 24 fps.** The recording fps (24 / 30 / 60 on the Shot view HUD) changes the take only, not the video.
  - Takes 2–30 s are accepted; the video is 4–30 s long.

- Videos, 3D worlds and 3D assets are each made one at a time per type.
- If the button's price and the server's price differ, «만들지 못했어요 / 크레딧은 나가지 않았어요» (Couldn't make it / no credits were spent) appears and the button is repriced.

**«영상 생성» (Create video)**

A video from a description, with optional photos, videos and sounds — no take needed. One panel on the left: model → media box → «설명» (Description) → settings → «만들기».

1. «만들 것» → «영상 생성» (in the «영상» group, below «무빙 따라 만들기» — «글 · 사진 · 영상 · 소리로»).
2. Model row at the top, always shown: Seedance 2.5 or Seedance 2.5 Draft, with a line under it of what that model takes (e.g. «글 · 사진 · 영상 · 소리 · 4~30초»). «변경» (Change) opens the model list. **Seedance 2.5 Draft** makes a 480p preview first; if you like it, upgrade it to 1080p within 7 days from «만든 것 보기» (13-4).
3. The media box at the top has two tabs, «레퍼런스 | 첫·끝 장면» (Reference | First/last frame). The tab you see is how the video is made: «레퍼런스» uses what you attach as references (or nothing — description only); «첫·끝 장면» starts the video from a photo. Each tab keeps its own attachments, and «만들기» sends only the visible tab's.
4. «레퍼런스» tab: click the empty slot «레퍼런스 넣기 · 이미지 · 영상 · 소리» (Add references) to open the «내 미디어» (My media) window (7), or drop files from this computer onto the box («여기에 놓기» Drop here) to add them directly (one that can't go in: «넣을 수 없는 파일» with the reason). Attached tiles show their @ tag; a small «＋» tile adds more, and the line under them counts each type (and the seconds of videos and sounds) against the model's limits. ✕ on a tile removes it.
   - Images · videos (2–30 s each) · sounds (mp3 · wav · m4a, 1–30 s each, 30 s in total).
   - The first take you attach sets length and aspect to the take's (you can change them).
5. «첫·끝 장면» tab: «첫 장면 넣기 · 이미지» (Add first frame) picks one photo — the video starts from it; then «끝 장면 넣기 · 선택» (Add last frame, optional) — it ends on a second photo (photos only; the last frame needs a first frame: «첫 장면을 먼저 넣어 주세요»). The aspect then follows the photo («사진 비율» Photo ratio). A model that can't take a first frame shows the tab with a lock.
6. Write the video in the «설명» box below the media box — it is the main thing, and both tabs share it. Type «@» for a list (with small pictures) of what the visible tab sends and pick one; it becomes an orange chip. «레퍼런스»: @Image1 · @Video1 · @Audio1, numbered per type in the order you attached (removing one renumbers the rest and deletes its chips). «첫·끝 장면»: the first frame is @Image1 and the last frame @Image2 (the tile reads «@Image1 · 첫 장면»).
7. **«내 미디어» window** — opens beside the panel, the same height (the promo on the right dims; a click outside closes it without adding). Everything in your account, all scenes: tabs «전체» (All) · «녹화물» (Takes) · «영상» (Videos) · «업로드» (Uploads); older tiles load as you scroll down. Click tiles to pick several (✓ top-left), then «N개 넣기» (Add N) or «취소». Hover (or focus) a tile for round buttons top-right: ⤢ «크게 보기» (View large — plays videos and sounds, ‹ › to the next tile, «고르기» Pick) · ✎ «이름 바꾸기» (Rename, uploads) · 🗑 «지우기» (Delete, uploads — «이 파일을 지울까요? / 이 파일로 만든 영상은 남아요»; while a make is using it: «만드는 중이라 못 지워요»). «파일 올리기» (Upload file) adds «이 컴퓨터» (This computer) tiles at the front — «재는 중» (Checking) while checked, then picked, or the reason it can't go in; ✕ «빼기» drops one. A tile that can't go in shows the reason, e.g. «넣으면 한도 넘음» (over the limit if added) or «이 형식은 못 넣음» (this type can't go in). From «첫·끝 장면» the window picks one photo.
8. Settings, two per row: «길이» (Length) · «화면비» (Aspect) · «화질» (Quality — Draft is 480p only) · «소리» (Sound, «켬 · 끔» on · off — locked on when a sound is attached: «참고 소리가 있으면 켬») · «비트레이트» (Bitrate, «표준 · 높음» Standard · High).
9. Press «만들기 · N 크레딧». It is submitted immediately; the button reads «올리는 중… (1/3)» (Uploading) and «접수하는 중…» (Submitting) meanwhile. Status and failures work as in the block above; a failure can name the input: «@Image1 검수 실패», «넣은 영상 검수 실패», «첫 장면 검수 실패» (First frame failed review), «끝 장면 검수 실패».

- The button is blocked with a reason, e.g. «설명을 적어 주세요» (Write a description), «이미지나 영상을 넣어 주세요» (Add an image or video — sounds alone aren't enough) or «넣은 것이 한도를 넘었어요» (Over the limit).
- Files from this computer are uploaded only when you press «만들기», and until then are kept only while this tab is open. Once used, they appear under «업로드» (13-5) and in «내 미디어», and stay there until you delete them — one file can be used by many videos.
- The right side plays a promo video (muted, looping) when one is set; otherwise it is empty.
- «무빙 따라 만들기» and «영상 생성» are both videos: one at a time between them.

**«3D 공간 · 사진 · 영상으로» (3D world — from photos/video)**

1. «만들 것» → «3D 공간».
2. Drop or click to upload one of:
   - one photo — a 2:1 photo is treated as a **panorama**;
   - several photos (up to 4), each given a direction «앞 · 오른쪽 · 뒤 · 왼쪽» (front · right · back · left);
   - with «하나로 합치기» (Merge into one) on, up to 8 photos of identical size;
   - one video (up to 30 s, 100 MB, mp4 · mov · webm).
   Each photo has «바꾸기» (Change) and ✕; «사진 더 넣기» (Add more photos) adds more. Breaking a rule shows a dialog, e.g. «사진은 4장까지예요» (up to 4 photos) or «이 영상은 쓸 수 없어요» (this video can't be used).
3. Optional «설명» (leave empty to let it infer from the upload) and «모델» (Model): «marble-1.1 · 표준» (Standard, default) · «marble-1.1-plus · 고품질» (High quality — larger worlds) · «marble-1.0-draft · 초안» (Draft — cheapest).
4. «만들기 · N 크레딧» → about 8 minutes → when done it appears in Library «3D 공간»; place it with «씬에 올리기» (Place in scene) or «놓기».

**«3D 에셋 · 사진으로» (3D asset — from a photo)**

1. «만들 것» → «3D 에셋».
2. «무엇으로» (Input): drop or click to upload one photo — «물체 하나가 크게 보이는 사진 한 장» (one photo where one object is large) · jpg · png · webp. The background is removed for you. Use a photo with **one** object — with several (e.g. three penguins) the result comes out broken. «바꾸기» (Change) swaps the photo.
3. «이름» (Name): starts as the file name without its extension (e.g. «화분.jpg» → «화분»), and can be changed. «만든 것은 라이브러리 «내 것»에 이 이름으로 들어가요» (it goes into Library «내 것» under this name).
4. «만들기 · 60 크레딧» → when done it appears in Library «에셋 · 내 것»; place it like any asset (double-click, drag, or «놓기»). Sides not visible in the photo are the model's guess.

**Common**

- Closing the window (✕ · Esc · outside) keeps your inputs; making continues on the server.
- Opening it shows **what you last used in this scene** — description, quality, sound, takes and reference images are kept per scene, in this browser for your account, even after a reload; so are «영상 생성»'s description, attachments, first/last frames, model and settings, except files picked from this computer. A new scene starts from the defaults. Opening it from a take's «영상 만들기» puts that take in first.
- There is no list of recent jobs in the Make window: when you press «만들기» the **job list** (Job chip, below) opens by itself with the new row on top, and the Make window stays open so you can make another. Everything made in this scene is in Results (13-5) and the Library. «크게» (Large) fills the screen.
- **Job chip** «작업 N» (Jobs N) on the top bar, marked with a spinning icon (running — it stands still when your system asks for reduced motion) · a red ! (failed) · a green ✓ (done). Click it to open or close the job list; clicking outside closes it, and it opens by itself when you press «만들기» or record. Newest rows are on top. It lists running jobs plus finished/failed jobs from the last 24 hours that you haven't closed (failures marked with a red !), and this tab's recordings (see 13-2; at most three finished ones are kept). While a 3D world you made is being loaded into the scene, its row reads «3D 공간 받는 중» (Loading 3D world) with a spinning icon — no cancel, no percent, nothing is blocked — and disappears when it's done (a failure is told by the notice bar instead). A long list scrolls inside. Rows: waiting [취소] · generating · done [씬에 올리기] (3D world) / [씬에 놓기] (Place — 3D asset; both close the Make window when done so you can see what you placed) · failed [닫기] (Close). Click a finished row to go where it lives: a video opens the Results window on that scene's videos with it selected, a 3D world opens Library «3D 공간» and a 3D asset Library «에셋 › 내 것» with it selected, a failed job reopens the Make window with the values it used; the in-row links «결과물에서 보기 ›» · «라이브러리에서 보기 ›» · «다시 만들기 ›» do the same. Running rows don't move, and nothing opens while recording · «만든 것 전체 보기 ↗» (All results) at the bottom. While a recording runs, [씬에 올리기] · [씬에 놓기] read «녹화 중» (Recording) and can't be pressed, and «만든 것 전체 보기 ↗» is hidden.

### 13-4. «만든 것 보기» (Result viewer)

Opened from [보기] or a result tile: playback (a picture for 3D worlds) · status · «만든 씬» (scene made in — opens it in «내 씬» in a new tab) · inputs (click a thumbnail to enlarge) · scenes using it · credits · date · inputs · description [복사] Copy · settings · download · **«지우기» (Delete)** (removes the video and description; files you attached stay in «업로드» — «넣은 파일은 «업로드»에 남아요.»; a 3D world is also removed from scenes using it; while running: «끝나면 지울 수 있음» deletable when finished; while another make uses this video: «만드는 중이라 못 지워요»). An attached file you deleted shows as «지운 파일» (Deleted file). In browsers that cannot play it, «이 브라우저에서 재생 불가» (Can't play in this browser) appears but download still works.
- **Draft results** carry «Draft · 480p» next to the title. Until the deadline shown («MM/DD 까지», e.g. «11/11 까지» — a little under 7 days after making), «1080p 로 올리기 N» (Upgrade to 1080p, N credits) makes the same video again at 1080p as a new job — no confirmation; the Draft stays; failed means refunded. It is not a sharpened copy of the preview, so it can differ. The new job shows model Seedance 2.5 · 1080p. Each Draft can be upgraded once («이미 올렸어요» Already upgraded) — again only if that upgrade failed or was cancelled; after the deadline: «올릴 수 있는 기간이 지났어요».
- **«다시 만들기» (Remake)** — on a finished or failed video or 3D world, in the editor (a 3D asset has no viewer with this button — it will come from the failed line in the job list): the viewer closes (and the Library or Results window behind it) and the Make window opens filled with that job's values — video: the reference video and reference images it used (they stay on the server and are not added to your takes or reference images) plus description · quality · sound · length · aspect; 3D world: the photos (with their directions) or video, description, name and model; 3D asset: the photo, name and model; a «영상 생성» job opens «영상 생성» with its description (with its @ chips), attachments, first/last frames, model and settings — an upgraded job opens Seedance 2.5 · 1080p with the Draft's inputs. It replaces what you had typed (for a video also this scene's reference images — while loaded, only images you add afterwards are shown and used; «비우기» brings yours back); a line at the top says «"name"에서 불러왔어요» (Loaded from "name") with the failure reason if it failed, and «비우기» (Clear) on the right starts fresh (model included; it is disabled while making). «만들기» makes a new job (priced again; the original stays) in the original job's scene — for a video only while it uses the loaded video (if you picked a take instead it goes to this scene); if that scene was deleted, this scene (3D assets have no scene). ✕ on a loaded image («불러온 이미지 빼기») leaves it out of this make only; «바꾸기» (Change) on the video — or «영상 만들기» on a take — uses that take instead. Switching scenes drops what was loaded. Deleted jobs can't be remade; for a video, if the original job or its files were deleted by the time you press «만들기», the loaded files are removed and your description and settings stay («다시 만들 수 없어요 / 불러온 파일을 뺐어요»), and a file that no longer meets today's rules is left out with the rule shown («이 파일은 뺐어요»); for a 3D world or asset you get «올리지 못했어요» and the loaded values stay.

### 13-5. «결과물» (Results) — third rail button

Everything that came out of your scenes — takes, AI videos and the files you used — in one window. Open it with the rail button «결과물» (this scene, «전체») or with «녹화물 N» on the timeline bar (this scene, «녹화물», newest take selected).

- **Left folders**: project › scene › «전체» (All) · «녹화물» (Takes) · «영상» (Videos) · «업로드» (Uploads — files from this computer you used in a make, under the scene of the first job that used them). Projects and scenes only fold and unfold; you pick one of the four rows. The current scene is marked «이 씬» (This scene) and opens unfolded with «전체» selected. The number is takes + videos + uploads; empty scenes show 0. «씬 없음» (No scene) holds takes from before scenes were tracked and things from deleted scenes. Scenes are created, renamed and moved in «내 씬» — «씬 관리는 내 씬에서 ↗» (Manage scenes in My scenes) at the bottom opens it in a new tab. On a narrow screen the folders fold into a picker «project › scene › 전체 ▾» at the top.
- **Tiles**: «전체» mixes takes, videos and uploads in one grid, newest first. A take tile shows its first frame and «10.3초 · 16:9» (edited takes have a scissors mark); a video tile shows «… 영상» with «480p · 4초», or «기다리는 중» (Waiting, with «취소» Cancel) · «생성중» (Generating) · the failure reason. Hover a tile for ▶ (preview in the tile). Takes also show a red ✕: «「name」을(를) 지울까요? / 녹화물이 지워집니다» (Delete «name»? / The take will be deleted) — it goes to the server trash for 30 days. Delete key does the same on a selected take. Videos are deleted in the Result viewer (13-4). An upload tile shows «업로드 · 영상 · 5.6초» (or «업로드 · 이미지» · «업로드 · 소리 · 8.0초»); its name starts as the date and time it was uploaded, e.g. «11/04 14:32». Deleting an upload («지우기» at the bottom) keeps the videos made with it — «이 파일로 만든 영상은 남아요» — and is refused while a make is using it.
- **Bottom buttons** follow the selected tile — take: «다운로드» (Download) · «키프레임으로 편집» (Edit as keyframes — converts the take's camera path into keyframes, **replacing the active camera's keyframes**; undoable) · «편집» (Edit, 13-2) · **«영상 만들기»** (Make video — opens the Make window with this take); video: «다운로드» · **«보기»** (View — the Result viewer); upload: «폴더에 넣기 ▾» · «다운로드» · «이름 바꾸기» (Rename — the name box opens at the bottom left) · «지우기» (Delete). Double-click a tile = the main (orange) button.
- **Your own folders** (optional — use them only if you like): under «전체» · «녹화물» · «영상» · «업로드» each scene can have folders you make, then «＋ 폴더 추가» (Add folder) — the name box opens in place with «새 폴더» (New folder) selected; Enter makes it, Esc cancels. «씬 없음» has no folders, and folders have no sub-folders. The «⋯» next to a folder (or next to its title when it is open) has «이름 바꾸기» (Rename) and «폴더 지우기» (Delete folder — «「name」 폴더를 지울까요? / 안에 든 N개는 «전체»에 그대로 남아요»: only the folder goes, the items stay in «전체»).
  - Folders work like photo albums: one tile can be in several folders and there is still only one original — it stays in «전체» · «녹화물» · «영상» · «업로드», and deleting the tile removes it from every folder. Add tiles with **«폴더에 넣기 ▾»** (Add to folder) at the bottom — a checklist of this scene's folders (☑ all selected tiles are in it · «–» some are · ☐ none; untick ☑ to take them out, tick «–» or ☐ to put them all in; «＋ 새 폴더» at the bottom makes a folder and puts the selection in it) — or drag a tile onto a folder in the left list (the row lights up).
  - Select several tiles with ⌘/Ctrl-click (add or remove one) or Shift-click (a range). The bottom bar then reads «N개 골랐어요» (N selected) with «고르기 풀기» (Clear selection) and «폴더에 넣기 ▾». Dragging a selected tile drags the whole selection.
  - Inside a folder the red ✕ is replaced by a grey ⊖ «폴더에서 빼기» (Remove from folder): no confirmation, a short note «「folder」에서 뺐어요», and the tile stays in «전체». The Delete key does the same for the selected tiles. An empty folder says «비어 있어요» (Empty).
  - A take that is not on the server yet (still saving, or saving failed) cannot go into a folder: selecting just that take adds «저장 중» (Saving) or «저장 실패» (Save failed) to the bottom line and disables «폴더에 넣기 ▾»; mixed in a selection it is skipped with a note (e.g. «저장 중 1개는 빼고 넣었어요»). Once it is saved you can add it.
- Search box «이름» (name) filters the open folder. Esc, ✕ or a click outside closes the window (Esc closes an open menu first).

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## 14. «씬» (Scene) section — environment

Inspector «씬» (Scene) section: «환경» (Environment) sets the lighting preset — «스튜디오» (Studio, default) · «낮» (Day) · «황혼» (Golden hour) · «밤» (Night) — plus background colour and floor colour. The recording fps moved to the Shot view HUD, next to the aspect.

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## 15. Saving · undo

### 15-1. Saving

- Every edit is saved to the server (1–3 s after editing). The **save badge** on the top bar shows the state: «저장됨» (Saved) · «저장 중…» (Saving…) · «저장 못 함» (Couldn't save, amber).
- Click the badge or press Windows Ctrl+S / Mac ⌘S to save immediately. There is no «save» item in the scene menu.
- Clicking «저장 못 함» retries and a small panel under the badge explains why: «서버 연결 끊김 [다시 시도]» (Disconnected [Retry]) · «다른 창에서 편집 중 / 저장 중단 [여기서 계속하기]» (Editing in another window [Continue here]) · «씬 용량 초과 / 오브젝트를 줄이면 저장됨» (Scene too large — remove objects) · «저장 거부됨 [새로고침]» (Save rejected [Reload]) · «로그인 만료 [다시 로그인]» (Signed out [Sign in again]).
- After more than 3 minutes without saving, a banner «N분째 저장이 안 됩니다 — 파일로 내려받아 두세요» (Not saved for N minutes — download a copy) appears with [내려받기] (Download), which saves the scene as a .json file. Leaving while «저장 못 함» asks for confirmation.
- If the scene could not be fully loaded, the save panel opens by itself: «씬 불러오기 실패» or «오브젝트 N개 불러오기 실패» (N objects failed to load) / «저장 중단» (saving stopped) [다시 불러오기] (Reload). You can still edit and record, but edits are not saved until you reload.
- **Same scene in two windows**: a banner «이 씬을 다른 창에서도 열었습니다» (This scene is also open in another window) offers «여기서 계속하기» (Continue here) / «보기만 하기» (View only). The other window then shows «이 창은 보기만 합니다» (This window is view-only — edits here are not saved), and later «저쪽 창이 닫혔습니다» (The other window closed).
- **Offline**: banner «인터넷이 끊겼습니다 — 3D 작업은 계속됩니다. 만들기만 막힙니다» (Offline — 3D work continues; only making is blocked) with [다시 연결] (Reconnect).
- Edits are also backed up on the device every 2 seconds; after a crash, reopening resumes with «이어서 작업 중입니다» (Resuming your work).
- Scene menu «새로 시작» (Start over) = discard the current work and backup for an empty scene (asks once).
- **Private windows**: scenes are saved on the server, but half-typed Make inputs and screen settings (timeline height etc.) live only in this browser and disappear when the window closes.

### 15-2. Undo (last 50 steps)

- Windows Ctrl+Z / Mac ⌘Z = undo · Windows Ctrl+Shift+Z / Mac ⌘⇧Z = redo · ↶ ↷ on the top bar.
- Each undo briefly shows what was undone above the stage, e.g. «되돌림 · 오브젝트 이동» (Undone · move object). Holding the key reports a count («4단계 되돌림» 4 steps undone). Redo shows «다시 실행 · …». If there is nothing to undo: «되돌릴 작업이 없습니다». They work in Shot view too.
- Undoable: objects (place · draw · move · rename · drop · duplicate · paste · lock · hide · delete · colour · attach), scene-outline groups (make · ungroup · delete · rename · move rows), cameras (add · delete · rename · position · target · lens · aspect · load move · attach), keyframes (stamp · delete · retime · easing · path), motion, environment (fps · lighting · colours), 3D worlds (place · replace · remove).
- Not undoable: selection · playhead · active camera switch · view mode · camera windows · timeline height · moving in Shot view with WASD (confirm with «키프레임» — undoing in Shot view also puts the camera back at that step's pose, so unstamped WASD framing is lost) · assets outside the scene (moves · presets · takes).
- Undo history is lost on reload. Redone objects come back deselected.

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## 16. Common tasks, step by step (for AI assistants to follow)

### 16-1. Camera slowly approaching a person (the basic recipe)

1. «내 씬» → «＋ 새 씬».
2. Library «에셋» → double-click «사람» (person).
3. In «씬 구성» click «카메라 1»; in the inspector «샷» → target «오브젝트 없음 ▾» → «사람».
4. Playhead at 0 s → «키프레임» (K).
5. Playhead at 4 s → move the camera closer with gizmo 1 → «키프레임» (K).
6. Segment pill → «천천히 끝» (Ease out). Space to play; C to check framing in Shot view.
7. «● REC» → «녹화물 1» → «영상 만들기» → write a description → «만들기».

### 16-2. Chase camera following a moving car

1. Place «자동차»; with the car selected, stamp its path at several times with «「자동차」 키프레임».
2. Select the camera → inspector «따라갈 대상» → «자동차» (the camera rides the car).
3. «모션 › 효과» → «손으로 든 느낌» tile for shake.
4. Target «자동차» = watches the car while following; target off = bonnet cam.

### 16-3. A scene that looks shot in a real place

1. «만들기» → «만들 것» → «3D 공간» → upload a room photo → «만들기» (about 8 min).
2. When done: Library «3D 공간» → that world → quality «보통» → «놓기».
3. Match the camera to the original photo's viewpoint by hand, place objects, and stamp a movement as in 16-1.

### 16-4. Same scene from several angles

1. Add cameras with «＋» in «씬 구성» and stamp keyframes for each.
2. Use «카메라 창» under the stage to watch the other cameras while adjusting.
3. Make each camera active → «● REC» → «영상 만들기» per cut.

### 16-5. Vertical video (shorts)

1. Press C for Shot view and set the aspect on the HUD under the stage to «9:16».
2. Frame and stamp keyframes as in 16-1 (the frame border shows the vertical picture).
3. «● REC» → «만들기». The video comes out 9:16 because it follows the take.

### 16-6. Use only part of a take (or a take longer than 30 s)

1. «편집» right next to «녹화물 N» on the timeline bar (or select the take in Results and press «편집»).
2. Drag the ends of «남길 구간» or type the start and end; press ▶ to check.
3. «새 녹화물로 저장» → the new take (scissors icon) → «영상 만들기».

### 16-7. Your own object or product in the scene

1. Photograph the object alone (one object, filling the frame).
2. «만들기» → «만들 것» → «3D 에셋» → upload → «만들기».
3. When done press «씬에 놓기» (or Library «에셋 · 내 것» → «놓기»), resize with gizmo 3, then circle it with a camera (16-1) → export → make.

### 16-8. Refine a handheld flight

1. Fly the shot with Direct-drive recording (R) — Space starts and stops recording (stopping pauses while the take saves; «▶ 계속» (Continue) flies on).
2. Select the take in Results and press «키프레임으로 편집»: the flight becomes the active camera's keyframes (it replaces that camera's keyframes; Ctrl/⌘+Z brings them back).
3. Fix single keyframes or easing, then «● REC» again for a clean version.

### 16-9. Keep the same person or look across videos

1. Add the same «참고 이미지» (reference images) to every video.
2. Use the same words for the subject in each «설명» (e.g. «빨간 코트 여자»), matching the object name in «씬 구성».

### 16-10. Tips for good results

- Describe subjects concretely in the video description («빨간 코트 여자», «흰 SUV»), matching your object names.
- Use colour tags to tell similar objects apart, and mention the colours in the description.
- Camera moves of 4–8 s with 2–3 keyframes are the most stable. Soften start and end with easing.
- In the description, state place · time of day · light · subject action · camera movement in short sentences.

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## 17. Asking an AI assistant · contact

- **«설명서 복사» (Copy guide)** at the top of the «?» shortcut sheet copies this whole guide (with a one-line request in front) to the clipboard. Paste it into ChatGPT, Claude, Gemini or any AI chat and ask your question — this works even for assistants that cannot open web pages or text files. On success it shows «설명서를 복사했어요» (Guide copied).
- The site footer links to «이용약관» (Terms) and «개인정보처리방침» (Privacy policy).
- AI assistants that can browse may also read helistage.com/llms.txt, and AI browsers (e.g. ChatGPT agent, Claude in Chrome) can be asked to open helistage.com and operate the editor following this guide.

- If something is unclear or broken, email **dev@forever-st.com** with a screenshot.