Customizing a mesh

Sometimes it makes sense to draw your mesh manually, to conform to natural borders in your shot. The geometry on the left may deform better than the geometry on the right, especially when the mouth opens, or when imported into a 3D application.

Select a point, then Ctrl-Shift-Click another point to connect the two with an edge.
Alt-click an edge to delete it.

Alt-shift-click and drag to draw a line which deletes all edges in its path.

Auto-Triangulate Mesh will triangulate all points can, but will NOT bisect any quads. (This is good because quads render better than triangles in 3D software)

Clear Mesh will remove the entire mesh.

Lockdown 2.5.0 AE Win — this plugin is very functional!