# F15 — Options · Settings

> SkinLayer Studio **1.3.x Standalone** UI reference.  
> Practice: EP00–EP12 · Features: **F01–F17** (order 50+).

> Menu-bar **Options** — app-wide settings (nav · hotkeys · connectors · data · Smooth algorithms) and language.

---

## Menu

![Options menu](options_menu.png)

| Item | Description |
|------|-------------|
| **Settings...** | Open Options dialog (tabs below) |
| **Language ▸** | Switch UI language (한국어 / English / 日本語 / 中文, etc.) |

```
Options  →  Settings...
```

---

## Settings tabs

| Tab | Contents |
|-----|----------|
| **Viewport** | Navigation · coordinate system |
| **Hotkeys** | Hotkey presets · editing |
| **Connectors** | 3ds Max connector install status |
| **Data** | User data folder |
| **Smooth** | Smooth/Flood algorithms |

Bottom **OK** = apply · **Cancel** = cancel.

---

## Viewport

![Options — Viewport](options_viewport_tab.png)

### Navigation Preset

Camera controls matched to a DCC. Example: **3ds Max**

| Input (Max preset example) | Action |
|----------------------------|--------|
| Alt + MMB drag | Orbit |
| MMB drag | Pan |
| Wheel / Ctrl+Alt+Wheel | Zoom |
| **F** | Frame Fit |

### Coordinate System

| Item | Description |
|------|-------------|
| **DCC Preset** | 3ds Max, etc. — match Up/Front axes to the preset |
| **Up / Front / Bone Front Axis** | Manual axes (becomes Custom when changed) |
| Note | SLS internal basis: **cm, +Z up, -Y front** (fixed) |

If axes disagree with DCC, FBX · anim loads can distort — match the Preset before work.

---

## Hotkeys

![Options — Hotkeys](options_hotkeys_tab.png)

![Hotkey Presets](options_hotkeys_presets.png)

| UI | Description |
|----|-------------|
| **Preset** | **SLS Default** / **3ds Max** / **Maya** / **Blender** |
| **Save as... / Remove** | Save · delete user presets |
| Table | Action · Ctrl/Shift/Alt · Key |
| **Search** | Search action names |
| **Hotkey: click to set...** | Click a Key cell then press a key (**Esc**=cancel) |
| **Reset to Default** | Restore defaults |

Examples: Play/Pause=`Space`, Select/Paint/Vertex=`Q`/`P`/`V`, brush Replace/Add/Sub=`Shift+R/A/D`  
A note explains Ctrl/Shift/Alt columns apply only to **brush mode keys**.

---

## Connectors

![Options — Connectors](options_connectors_tab.png)

Shows SLS connector status installed in 3ds Max **user startup** (2022+, etc.).

| UI | Description |
|----|-------------|
| Status list | Version · **outdated**, etc. |
| **Open Installer...** | Install / upgrade / remove connector |
| **Refresh** | Rescan status |

If Pick / Apply to Skin fails, check whether the connector is outdated here and install/upgrade.  
→ Practice EP02 Install

---

## Data

![Options — Data](options_data_tab.png)

| Item | Description |
|------|-------------|
| **User data folder** | Path for settings · logs · license |
| **Open folder** | Open in Explorer |
| `config.json` | UI / Options settings |
| `logs\` | Crash · error logs |
| `license\` | License state |

For backup · PC move, **copy this folder alone**.  
Path example: `%AppData%\OtakuSolutions\SkinLayerStudio` (may vary by environment)

---

## Smooth

![Options — Smooth](options_smooth_tab.png)

Algorithms and parameters used by brush Smooth / Sharpen / Flood.

### Algorithm Selection (examples)

| Item | Recommended example |
|------|---------------------|
| **Brush Smooth** | Bilateral (robust to overlap) |
| **Brush Sharpen** | Bilateral |
| **Tools Flood** | Heat Diffusion (seam-robust) |

Recommended: Brush→Bilateral Laplacian · Sharpen→Bilateral Unsharp · Flood→Heat Diffusion.

### Algorithm Parameters

| Parameter | Description |
|-----------|-------------|
| **Position Sigma Scale** | Bilateral spatial influence scale |
| **Normal Cone (°)** | Normal angle limit — reduce bleed to opposite faces |
| **Heat Time Scale** | Heat Diffusion spread strength |

Parameters apply when Bilateral / Heat Diffusion are selected (M3+).

---

## Related docs

| Doc | Contents |
|-----|----------|
| [Viewport menu bar](/guide/skin-layer-studio/ui-viewport?lang=en) | Persp · Display · mode hotkeys |
| [Tools panel](/guide/skin-layer-studio/ui-tools?lang=en) | Set Weights · Smooth Layer |
| [Export JSON](/guide/skin-layer-studio/ui-export-json?lang=en) | Max connector Import |
| Practice EP02 Install | Connector · license |

---

*Images: `options_menu.png` · `options_viewport_tab.png` · `options_hotkeys_tab.png` · `options_hotkeys_presets.png` · `options_connectors_tab.png` · `options_data_tab.png` · `options_smooth_tab.png`*  
*Written: 2026-07-26*