Join Ryan Kittleson for an in-depth discussion in this video Modeling the facial cavities, part of Blender: Character Modeling.
The sculpt that we were retopologizing didn't have true eye sockets, an inner mouth, nostril holes, or ear holes. For one, the sculpt couldn't be subdivided enough to contain those things. And second, it would be too much work to try to retopologize up inside those cavities anyway. So now we're left with all those parts being unresolved. In this video, I'll show you how to finish it off. Let's do the eye first. What I want to do is hit Tab to go into Edit Mode, and let's zoom in on the eye. And let's go to Edge Select Mode, and pick one of these edges around the edge of the eye.
Now let's go into Select, and Edge Loop. Now I want to extrude this Edge Loop so that it goes inwards. So I want to look at the eye in kind of an angle like this. And let's go to extrude region. I just want to pull this inwards a little bit. There's not an exact thickness you should go for. But something like this is probably good. I'll just go ahead and left click to lock it in. Okay, let's extrude that one more time. Go ahead and click extrude region, and pull it back just a little bit. And now, left click to lock it in. And I'm going to look at it from this other view now, and what I want to do is just kind of grow this.
Let me zoom in, so we can see this better. want to switch to Scale mode and just scale this up a little bit. Great, so, now the skin of the eye that goes inwards a little bit and then outwards. So, that'll work great. That'll just kind of create a nice little rim on that eyelid. Okay, now, for the ear. Move around here. And actually, this is creating a lot of edges right here, so I'm just going to collapse some of this to make it easier to work with. I want to turn off the manipulators really quick, just because they're kind of getting in my way. So, if you need to turn that on and off, just click on this button.
Go ahead and select on these 2 edges here, and let's go to delete and edge collapse. Click this edge right here, Delete, Dissolve. Let's do that a couple more times. Just going to pick these two, Edge Collapse, that one, Dissolve, and maybe one more time. Okay, so we've got a much simpler opening right here to work with. So I'm just going to pick one of these edges, go to Select, Edge Loop, and let's extrude that inwards again. Look at this from a side angle kind of like this, let's go up to Extrude Region, let's pull it back, left click locked in.
Okay, let's see what we've got, kind of a nice weird cavity, I'm going to go into the Move tool and shift it forward. Okay, I'll let you do the same thing for the nostril, it's the exact same procedure. I want to skip ahead now to the mouth. We have to treat this one a little bit differently because it's on the symmetry line. So go ahead and pick one of the edges on the mouth, and then let's go to Select > Edge Loop. Okay, let's look at this from a kind of side view from the inside. All right, that's pretty good. So let's go to extrude region. And I just want to pull this up inside the mouth a little bit and then left click to lock it in.
Let me zoom in a little bit more. I'm going to adjust the position of this a little bit. Okay, let's go ahead and do that one more time. Street region, bring it up a little bit. Now we need to kind of flare it out. So this is going to take some manual tweaking, and actually what I want to do at this point is simplify it, because this is also kind of complex. So I'm just going to pick some of these edges here and collapse them, just like we've been doing before. And actually, you don't have to do it one at a time. We can actually kind of pick two and then skip one, pick two, skip one, pick two, so on and so forth.
Click these two here. Okay, this will work. Now, let's go to Delete, Edge Collapse, and now we can just delete these edges that are left behind in the middle. I'm just going to go through and Shift+Select all of these. Oops I accidentally got one I didn't want. Undo that. Sometimes it takes a little bit of finesse to get these edges. Right delete and dissolve. Okay so now we have a much simpler edge to start tweaking. So I'm going to go into vertex select mode. And going to actually just pick some of these vertices and just manually tweak them to kind of make an inside of the mouth.
And the inside of the mouth doesn't really have to look all that pretty; it's something that you're not really going to see a whole lot of. So, you know, don't spend a lot of time making it absolutely perfect, 'cuz there's going to be gums and teeth in there and a tongue, and it's kind of dark inside the mouth, so you don't have to worry about it being exact. Okay, so let's go into Edge Select Mode, and I'm going to pick one of these edges. Go to Select > Edge Loop, and then just do the same thing again, basically. So, extrude region, pull this up a little bit, and now, as we start bringing it back into the throat, what I want to do is, rotate it a little bit, get it turning and maybe I'll try to scale it.
Again it's going to take some manual tweaking as well. And we'll go into Vertex Mode, and just move some of these around. Whoops, I moved one I didn't want to move. It can be a little bit tricky to pick the exact right vertex. Okay so again we can do that collapsing trick. So let's go back into edge mode. This edge here. Edge, whoops I got the wrong one. Shift select that one. Let's do this one here. And this one here. Then let me pick this one. And this one. And this one and this one. Actually, got the wrong one. Okay. Delete, Edge Collapse.
And then I'll pick these edges that are left behind in the middle and Delete these. Okay, Dissolve. So now we've got something much simpler to work with. Okay, so let's select all these edges around here again, holding down Shift and Right-Clicking. Okay, let's do another extrude region. Left Click to lock it in, and I'm just going to do a little bit of rotating and scaling on this, just to get it kind of moving back towards the throat better. Okay. So now that I've got it back into the throat, I can just hit f. And that just closes it off with a new polygon. Okay, so now we've got a finished the inner mouth.
I think it's better to make the inner mouth like this, rather then trying to sculpt that cavity in and then retopologize it. It would be too much work to try to sculpt the inside of the mouth. So, I like to leave cavities like this for the end, and just model them manually.
- Creating a mesh object
- Mirroring a model
- Extruding and cutting polygons
- Using multiresolution sculpting to sculpt the body and head
- Drawing new topology
- Connecting different body parts
- Retopologizing the model
- Sculpting anatomical details
- Making clothing
- Brushing with texture maps