All language subtitles for 08 - Solution N-Gons in Blender

(lively music)

- [Instructor] So how do you clean up this 3D model

so you can have a proper loop cut?

Let me show you.

Click on edit mode.

And just to confirm, I can do a loop cut,

but it seems to end right here.

And I can do one of these here,

and it ends right in this area.

And I can even put one right here,

and it looks like there's just a gap,

so let's go ahead and fix it.

The problem lies when we were using multiple tools,

we created what's called an Ngon.

We have one, two, three, four, five vertices going on here.

That's a lot and Blender really only likes

a four-sided face.

So one thing I can do is grab this vertices right here

and then shift select this next one over here.

That one will turn white

and come up to mesh, merge, at last.

Now in this case, you do have four,

but we could clean this up a little bit, too.

So let's go ahead and select both of these right here,

just these two on the opposite edges,

and go to mesh, merge, at center.

Now this little vertices.

Mesh, delete, dissolve vertices.

Let's come down here and do the same thing.

Now, this actually looks good

and what I want to do is get rid of this edge right here.

So click on edge, edge, mesh,

delete, dissolve edges.

I can grab these two, as well.

Mesh, delete, dissolve edges.

And now I can do a proper loop cut

or cut all the way around.

Knowing how to clean up your models and fix them

is vital to your 3D modeling workflow.

If you ever see something weird kind of going on

and your tool doesn't seem to be working as expected,

there's probably an Ngon or there's probably a hole.

Knowing how to fix these problems

is going to make you an awesome 3D modeler.