Account and Sign In
LCC Scene Editor supports two usage modes: Login to access the full editing features, or Guest Mode to preview scene content without signing in.

Account login screen
Login
- Open LCC Scene Editor
- If you are already logged in via LCC Studio, Editor will sign in automatically and go to the home page
- If not logged in, click the Login button — your browser will open the login page
- Sign in or register an account on the web page
- After successful login, you are automatically returned to Editor
Note: Login sessions are valid for 30 days. You will need to sign in again after expiration.
Sign Out
Entry: Settings panel → Account Settings → Sign Out
Guest Mode
V2.1 introduces Guest Mode, allowing users to open project files and preview scenes directly without an account.
Entering Guest Mode
- Open LCC Scene Editor without logging in
- Import or open a 3DGS / project file
- The system detects you are not logged in and automatically enters Guest Mode
- A "Guest Mode" indicator and a "Login" button appear at the top
Feature Restrictions in Guest Mode
| Feature | Guest Mode | After Login |
|---|---|---|
| Scene preview and roaming | ✅ Available | ✅ Available |
| Switch between Preview/Edit mode | ✅ Switchable | ✅ Switchable |
| Annotation, Measurement, Viewpoint editing | ❌ Greyed out | ✅ Available |
| Save and Publish | ❌ Not available | ✅ Available |
In Guest Mode, the scene is displayed in Preview Mode by default. When switching to the Edit mode interface, all editing operations are greyed out.
Signing In from Guest Mode
- Click the "Login" button at the top, or click any editing operation (e.g., Annotation/Measurement/Viewpoint)
- A login prompt appears: "You need to sign in to edit. Sign in now?"
- Click "Login" → the login form appears
- After successful login:
- All editing operations are unlocked
- Your current browsing position and view angle are preserved — no need to relocate
- The "Guest Mode" indicator disappears, replaced by your username and the full toolbar