Modeling check
Unique Faces
Checks for duplicate faces that use the same vertices. By default this also includes duplicates with reversed winding (opposite normals); that behavior can be disabled to allow intentional double-sided geometry such as foliage cards.
Why this check exists
Duplicate faces can cause z-fighting, shading and lighting artifacts, ambiguous topology, physics problems, and unreliable export or fabrication results.
Behavior
| Module |
modeling/unique_faces.py
|
|---|---|
| Included with | Core |
| Severity | Warning |
| Automatic fix | Yes |
| Fix behavior | An automatic fix is available. |
| User settings | Yes |
| Selection support | Object |
Settings
| Setting | ID | Type | Default | Description |
|---|---|---|---|---|
| Ignore Reversed Winding Duplicates |
ignore_flipped_winding
|
bool |
If enabled, faces that share the same vertices but with reversed winding order
(opposite normal direction) are not flagged.
|