Where the loopcut should going ?

I've seeing the Course "Mesh Modeling Bootcamp" until the chapter named: "All quad junctions".
Today, I understand that poles can redirect the loop cut to get more control on the model.
However i still can't figure out how to use them to redirect the cut where i want.

I tried to anticipate by myself the direction of the loopcut but... i get it wrong almost all the time.

Here is an example:

Another one:



In my head poles can stop an edge loop and redirect it... but each time i try, i fail to understand where it should goes.


Ps: Sorry for my ugly images ^^', i'm not a photoshop user and paint is the best i have xD

  • Dolores 74 (dolores74) replied

    Loopcuts never turn in the middle of a face. They always cross edges.

    Loopcuts always split a quad in half. If it encouters a face that is not a quad (an n-gon or tris), the loopcut stops.

    If Blender would create an edge loop as you expected, the red line, it would have to add 1 vertex and create an n-gone with 6 vertices.

  • galledark (galledark) replied

    WOW !
    Thanks a Lot Dolores ^^.
    I understand why i was wrong now :)

    I can go forward ^^, thanks :)

  • Don Newman(gothicbunny) replied

    I've made a cheat sheet for reference here that helps visualize the flow through junctions.