WEBVTT 1 00:00:00.466 --> 00:00:04.000 Vertices, Edges, and Faces! 2 00:00:04.000 --> 00:00:08.000 In this video we're going to learn about Object Mode and Edit 3 00:00:08.000 --> 00:00:12.000 Mode, naming your meshes, manipulating 4 00:00:12.000 --> 00:00:16.000 vertices, edges, and faces, and understanding 5 00:00:16.000 --> 00:00:20.000 their relationship to one another. So let's head straight 6 00:00:20.000 --> 00:00:22.500 on over into Blender! 7 00:00:22.500 --> 00:00:26.433 We've opened up a brand new Blender file. The first thing I'm 8 00:00:26.433 --> 00:00:30.433 going to do is just move that cube up a little. We're going to be working 9 00:00:30.433 --> 00:00:34.433 with this cube, so I'm just wanting to make sure it's above 10 00:00:34.433 --> 00:00:38.433 this plane here. OK, so Object 11 00:00:38.433 --> 00:00:42.433 Mode and Edit Mode, what's the deal there? 12 00:00:42.433 --> 00:00:46.433 Well this cube is an object, 13 00:00:46.433 --> 00:00:50.433 so is this camera, and so is this lamp. 14 00:00:50.433 --> 00:00:54.433 If we have a look on the right-hand side here, I'm just going 15 00:00:54.433 --> 00:00:58.433 to expand the Outliner. So this Editor here is 16 00:00:58.433 --> 00:01:02.433 called the Outliner, and it lists here the 17 00:01:02.433 --> 00:01:06.433 objects in our world. Now if we have a 18 00:01:06.433 --> 00:01:10.433 look at the Cube, we see it has this 19 00:01:10.433 --> 00:01:14.433 triangle next to it, and that triangle means that this cube is a 20 00:01:14.433 --> 00:01:18.433 mesh. Now currently the Lamp is selected. 21 00:01:18.433 --> 00:01:22.433 If we go down to the 3D Header Bar and 22 00:01:22.433 --> 00:01:26.433 click on Object Mode, we can see there's nothing else to do. However, 23 00:01:26.433 --> 00:01:30.433 if we select the Cube, either in the Outliner or in the 24 00:01:30.433 --> 00:01:34.433 3D Editor itself, we then get some more options. 25 00:01:34.433 --> 00:01:38.433 At the moment, we only want Edit Mode. If we click 26 00:01:38.433 --> 00:01:42.433 on Edit Mode, it goes into that mesh and 27 00:01:42.433 --> 00:01:44.966 enables us to Edit it. Finally, 28 00:01:45.733 --> 00:01:49.733 you can toggle between Edit Mode and Object Mode, 29 00:01:49.733 --> 00:01:53.733 using the Tab key. 30 00:01:54.000 --> 00:01:58.000 With only three objects in our world, at the moment, it's 31 00:01:58.000 --> 00:01:59.866 quite easy to distinguish 32 00:01:59.966 --> 00:02:03.600 them from one another, however, as you build 33 00:02:03.600 --> 00:02:07.600 more and more complex meshes, you'll want to name them to make sure 34 00:02:07.600 --> 00:02:11.600 you can find them again, select them, and manipulate them. 35 00:02:11.600 --> 00:02:15.600 So if we have a look on the right-hand side, we can 36 00:02:15.600 --> 00:02:19.600 see that our mesh is called Cube. That's an accurate description 37 00:02:19.600 --> 00:02:23.600 of what it is on the screen. You can also see the name of that mesh, 38 00:02:24.533 --> 00:02:26.800 if I enable the Properties 39 00:02:26.800 --> 00:02:30.800 Pane in the 3D Editor or press the N key. um, Mid- 40 00:02:30.800 --> 00:02:34.800 way down on here there is, here we go, under the Item 41 00:02:34.800 --> 00:02:38.800 dropdown you see it says Cube. So you can either change the name 42 00:02:38.800 --> 00:02:42.800 here in the Outliner or in the Properties Pane 43 00:02:42.800 --> 00:02:46.800 of the 3D Editor itself. So if we change that one here to 44 00:02:46.800 --> 00:02:50.800 Cube1 45 00:02:50.800 --> 00:02:54.800 we can see it changes in two places. I couldn't think 46 00:02:54.800 --> 00:02:58.800 of a better name for it. So that's how you name 47 00:02:58.800 --> 00:03:02.800 your meshes. Let's go and edit that Cube 48 00:03:02.800 --> 00:03:06.066 and make it into something else. 49 00:03:06.066 --> 00:03:10.066 So I'm just going to do a bit of tidying up, because I'm 50 00:03:10.066 --> 00:03:14.066 quite lacking space here. Right let's 51 00:03:14.066 --> 00:03:18.066 zoom into this cube, so we can have a closer look! 52 00:03:18.066 --> 00:03:22.066 So on the 3D Header Bar 53 00:03:22.066 --> 00:03:26.066 you have three buttons next to one another, Vertex Select, 54 00:03:26.066 --> 00:03:30.066 Edge Select, and Face Select. Now when 55 00:03:30.066 --> 00:03:34.066 Vertex Select is selected, we're able to select 56 00:03:34.066 --> 00:03:38.066 each one of these vertices individually. The same is 57 00:03:38.066 --> 00:03:42.066 true when Edge Select is, we can select all the edges, 58 00:03:42.066 --> 00:03:46.066 and finally faces, you've guessed it, you can select 59 00:03:46.066 --> 00:03:50.066 faces! Now the really cool thing about this is, if I select a face, like this one 60 00:03:50.066 --> 00:03:54.066 on top, and then click Edge Select, it changes now 61 00:03:54.066 --> 00:03:58.066 to selecting all of the edges that made up that face. And 62 00:03:58.066 --> 00:04:02.066 similarly, if I now click on Vertex Select, we've now selected all the 63 00:04:02.066 --> 00:04:06.066 vertices that make up those edges, which make up that face. 64 00:04:06.066 --> 00:04:10.066 Now we can start manipulating our model! 65 00:04:10.066 --> 00:04:14.066 So how do we do that? Well over here, 66 00:04:14.066 --> 00:04:18.066 on the left-hand side, we have some options, 67 00:04:18.066 --> 00:04:22.066 Translate, and if we hover over... 68 00:04:22.066 --> 00:04:26.066 Ooh I'm already doing it, I'm just going to escape out of that. With Translate, 69 00:04:26.066 --> 00:04:30.066 if we hover over it, you can see it's got the shortcut G. Rotate 70 00:04:30.066 --> 00:04:34.066 has the shortcut R, Scale has the shortcut 71 00:04:34.066 --> 00:04:38.066 S, etc. So if you ever want to know what a shortcut 72 00:04:38.066 --> 00:04:42.066 key is, and it's not apparent straight away, if you hover over any of these 73 00:04:42.066 --> 00:04:46.066 buttons, if there is a shortcut you can see what it is. 74 00:04:46.066 --> 00:04:50.066 So now, if I press G I can move all of those vertices up 75 00:04:50.066 --> 00:04:54.066 and down, or indeed, we're moving that face at the same 76 00:04:54.066 --> 00:04:58.066 time, it's the same thing. If we press the R key to rotate, 77 00:04:58.066 --> 00:05:02.066 we can rotate that face around. At the moment, it's 78 00:05:02.066 --> 00:05:06.066 around an arbitrary point in space, and scale 79 00:05:06.066 --> 00:05:10.066 with S, we can make the top much much smaller. 80 00:05:10.066 --> 00:05:14.066 Excellent! So we've got some sort of funky pyramid going on there! 81 00:05:14.066 --> 00:05:18.066 Now what happens if we don't want that shape, if we want to actually 82 00:05:18.066 --> 00:05:22.066 edit the shape itself? Well we can start going in and deleting 83 00:05:22.066 --> 00:05:26.066 stuff. So let's select edge, click this 84 00:05:26.066 --> 00:05:30.066 edge, and then go to the menu Mesh, 85 00:05:30.066 --> 00:05:34.066 and we can see Delete and we've got an X there, so we can hit 86 00:05:34.066 --> 00:05:38.066 X and select Edges. Now that's deleted that 87 00:05:38.066 --> 00:05:42.066 edge there. Now because these two faces 88 00:05:42.066 --> 00:05:46.066 relied on the edge existing, it's now 89 00:05:46.066 --> 00:05:50.066 gone. So with this we could make a brand new 90 00:05:50.066 --> 00:05:54.066 shape. Let's delete this vertex down 91 00:05:54.066 --> 00:05:58.066 here. I'm going to press X and delete the vertices. 92 00:05:58.066 --> 00:06:02.066 Now I'm going to join up 93 00:06:02.066 --> 00:06:06.066 this vertex here and this one here, by holding down Shift, 94 00:06:06.066 --> 00:06:10.066 while selecting. I'm going to go to Mesh, 95 00:06:10.066 --> 00:06:14.066 Edges, Make Edge or 96 00:06:14.066 --> 00:06:18.066 Face, and it's got the shortcut key F. 97 00:06:18.066 --> 00:06:22.066 So that has made an edge there. If I now 98 00:06:22.066 --> 00:06:26.066 highlight these two vertices and press F, 99 00:06:26.066 --> 00:06:30.066 it will make an edge there, and if I highlight these two 100 00:06:30.066 --> 00:06:34.066 and press F but there's no faces left. 101 00:06:34.066 --> 00:06:38.066 Well we can simply select the third. 102 00:06:38.066 --> 00:06:42.066 Remember a face must exist of at least three 103 00:06:42.066 --> 00:06:46.066 vertices and three edges. 104 00:06:46.066 --> 00:06:50.066 And press F, it actually fills that space in with a 105 00:06:50.066 --> 00:06:54.066 face. I would do it there 106 00:06:54.066 --> 00:06:58.066 and we'll do it here as well. 107 00:06:58.066 --> 00:07:02.066 So there we go, we've filled in all of those. Ah no, 108 00:07:02.066 --> 00:07:06.066 we haven't, we've forgotten the bottom! 109 00:07:06.066 --> 00:07:10.066 There we go, so we've now got a completely solid 110 00:07:10.066 --> 00:07:13.700 and new shape from our cube! 111 00:07:13.700 --> 00:07:17.533 It's challenge time! I'd like you to create a wedge! 112 00:07:17.533 --> 00:07:21.533 So starting with a cube, create a wedge. Make 113 00:07:21.533 --> 00:07:25.533 sure you name your mesh Wedge, and finally, 114 00:07:25.533 --> 00:07:29.533 it should look something like that. 115 00:07:29.533 --> 00:07:33.533 Variations on the theme are accepted. So pause the video now, go off, 116 00:07:33.533 --> 00:07:37.533 and try and make your first wedge! 117 00:07:37.533 --> 00:07:41.533 Welcome back! How did you get on? Well in 118 00:07:41.533 --> 00:07:45.533 the next lecture, we'll show you the process for making that wedge!