Mesh Analysis Overlay

Catch shading and topology problems before they bite.

The Workflow

1. In the viewport, open Overlays (two-circle icon).
2. Enable Face Orientation (spot flipped normals - blue is good, red is bad).
3. Enable Wireframe (quick density check).
4. In Edit Mode: Select → Select All by Trait > Non-Manifold.
5. Fix issues (recalculate normals, fill holes, remove internal faces).

The Usage

This is the fastest “sanity check” pass for models—especially before booleans, UVs, baking, or exporting.