Simple Mesh Viewer is a tool for investigating meshes. 

This tool will display vertices and triangles for any mesh.

When you do some procedural mesh generation it's a common problem to struggle with wrong triangulation and missing vertices, this tool can help you find those issues.

How it works:

Open SimpleMeshViewer window and select mesh you want to inspect.

Lock selection if you want to avoid accidentally switch focus to another object.

Hover you mouse over the desired vertex and click it to select this. 

Now in the window you can check all related triangles, switch between them or choose any vertex from these.

Please note: this package doesn't include any models or textures