# Mesh Check

**Real-time topology validation for Blender, with a visual HUD and one-click fixes.**

Mesh Check continuously inspects your meshes while you work and surfaces the

most common topology problems directly in the viewport — boundary edges, n-gons,

coincident vertices, loose geometry, inconsistent normals and non-uniform object

scale — grouped per mesh, with targeted fixes a click away.

## What it checks

| Check | Highlight | Meaning |

|-------|-----------|---------|

| N-Gons | Orange fill | Faces with more than 4 sides |

| Boundary Edges | Cyan lines | Edges used by only one face (open mesh) |

| Coincident Vertices | Red points + count | Overlapping vertices within the tolerance |

| Loose Geometry | Yellow points/lines | Vertices or edges not connected to any face |

| Inconsistent Normals | Purple fill | Faces wound opposite to the rest of their island |

| Object Scale ≠ 1 | Yellow label | Object has non-applied scale |

## Performance

Scanning is throttled and the inconsistent-normals pass is skipped on very dense

meshes (above an internal face budget) to keep the viewport responsive. Disable

checks you don't need for the heaviest scenes.