Skill Level Intermediate
- [David] Sometimes when you're using Blender you wind up with a mesh that has a lot of holes in it. Now, you could go through each and every single one and fill it, but is there a faster method, is there an easier method? Well, in this week's Blender Tips, Tricks, and Techniques I'm gonna show you. Let's go ahead and hit A and clear everything out of the scene, and then let's go Shift+A and let's add a monkey. I'm gonna scale this monkey kind of big. Tab+W, Subdivide Smooth, and now let's go ahead and switch to Face mode with Control+Tab, and let's do a few things.
First let's delete a face right on his eyebrow. Then let's go ahead and delete a handful of these that are at the top, and let's see here, let's find a... Oh, yeah, let's do that one, that'll be good, right on the eye right there. Okay, so now, whenever you're working in Blender you're probably saying to yourself, "Well, I could just "go ahead and switch to Edge mode, hold Alt, "select this and hit F, and you would be right." That'd be a really fast way of doing it.
You could also do it with the top here. Select the top and hit F and things are okay, but what if there's a lot of holes and you're not entirely sure where they're all at? Well, one thing you can do is hit A twice, space bar, type in Fill and you'll see this option that says Fill Holes. So, let's hit Enter, and right away a handful of these are filled but a handful are not. You can see right here that the eyeball and then the top of the head are not filled, but the eyebrow was, and that's because over here in the T panel I have a little slider and I can say fill holes that are three-sided, four-sided, or if I scale it all the way up, nine-sided.
Now isn't this interesting, this is less than nine, but this thing technically has more than nine sides, so I have to keep going up until eventually I fill the whole thing, and hey, I'm done and it looks pretty good. Now, we could stop here and we would be done, but Blender has one more awesome option, so I'm gonna leave this at four and then I'm gonna switch to Edge mode, and for this case you actually need to select the edges. So, I'm gonna select this one right here. I'm gonna hit space bar and type in Fill again, and you'll see another option called Grid Fill.
So, let's hit Enter, and what this does is it creates some edges, so you can go ahead and offset them and actually have edges on your mesh. Now let's go preview this at the top. So, let me just hit this to zero and let's try it with this guy. Space bar, Grid Fill, and hey, you know, right off the bat that actually looks pretty good and it's pretty easy to use. I could go ahead and add some more if I wanted to.
I could also offset these in kind of a weird pattern, and turn on Simple Blending so that things don't curve too much. You can see what's going on here. With Simple Blending off actually leaves some good results, see that? Kind of almost follows those contours really nicely. So, that's the power of these two types of filling. Now, there's one more that's really fun, so let's switch to Vertice mode, and let's pick a random vertice.
I'm gonna pick this one, space bar, Fill, Rip Fill, and what that does is as soon as you move your mouse... I'm just gonna move it up here. Let's rotate all the way around. Hey, look at that, our original vertice was left alone, but a new vertice was created, and while it was created it also added some new faces. The shortcut for this is Alt+V, so if I hit Alt+V you can kind of see what's happening.
So, let me select this face over here. Alt+V, and this is kind of like an interesting thing, it rips the vertice open, but it keeps it attached and it fills in the hole while it's doing it, and of course if you come over here, Alt+V, you can do it with multiple vertices. So, while this will not necessarily fill old holes, it will help if you end up creating some new ones and you want to just move a vertice but not necessarily go ahead and create all the faces by hand either.
But Grid Fill, Fill, Fill Holes, and Rip Fill are all awesome and sometimes overlooked little tools that are all included inside of Blender that'll make your mesh cleanup process a lot easier. I hope you enjoy this little simple trick, because honestly, it'll add a ton to your workflow. Until next time, this is David for Blender's Tips, Tricks, and Techniques.
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