Connecting flow zones

I like to retopologize different flow zones, like the eye and…the mouth separately, because it helps me establish the important parts first.…However, as you build out these meshes,…they'll eventually need to be merged into one.…In this video, I'll show you some ways to make that happen.…So here's the retopology in progress.…You'll notice that since the last video, I added a…bit of geometry to the flow zone underneath the chin.…I just used grease pencil to add some…lines here, and here, and connected them with…B surfaces, just like we've been doing before.…Okay, so one way to connect separate flow zones is by merging vertices.…

Let's look at some places where we could do that.…So, this point right here where we've got…the corner of the mouth meeting with this vertex…on the nasal labial fold, is a good example…of a place where we can merge some vertices.…So, I'm going to go into vertex mode.…I'm going to select one, and…then shift select the other. Now hit Alt+M.…We get a pop up that let's us choose between a few options.…