This extension allows the user to do three things: Unwraps non-coplanar faces (any shape objects, shells etc.) using an automatic (randomized) algorithm and then lays the resulting set of faces flat on the ground. This is done without creating any distortions. Lays any arbitrarily-oriented face or collection of coplanar faces flat on the ground (without distortion). Use e.g. in combination with a manual unfold tool or to make sure faces are perfectly horizontal. Projects a set of faces to one of the three main planes by smashing all faces flat. This creates distortions, of course.