|UI location||Editmode > F-key|
|Usage||Enter editmode. Select a single vertex or edge and press F.|
|Current version download||[Extensions SVN]|
|Links||[Script homepage] with extensive documentation (including images)
[Discussion thread] at BlenderArtists
F2 (also known as the 'spider-script') extends Blender native functionality of creating faces. It allows you to create a face from a single vertex selection
or a single edge selection, while retaining all the built-in functionality. Simply enable the add-on, and pressing the F-key will be better than ever before.
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Quad from vertex
When a single vertex is selected, a new quad is created by creating a new vertex. The position of this new vertex is calculated based on the three existing vertices. These are the selected vertex, and two vertices to which it is connected via open edges. An open edge is an edge which is only part of one face, or none at all. The newly created quad has the same material and normal direction as the neighbouring faces.
Quad from edge
Similar to the quad from vertex functionality, this is based on open edges. The selected edge has to be connected to two open edges. The vertices which belong to these edges are used to create a new quad.
If there are multiple ways to create a new quad, the position of the mouse cursor is taken into account. Of the multiple new faces which are possible, the one which will be closest to the mouse cursor (in 2d screen-space) is the one which will be created.