WEBVTT 00:00.180 --> 00:07.470 In this lesson, we're going to cover something that's really like a puzzle and that is reducing the 00:07.470 --> 00:10.580 number of edges like we saw coming into the eye. 00:10.920 --> 00:14.700 So we have an area of high density of loops into an area of low density. 00:14.700 --> 00:17.760 And we saw that was resolved right here in this face. 00:18.300 --> 00:23.250 OK, and we're going to learn how to do this and we're going to simplify it and we're going to use planes. 00:23.640 --> 00:28.890 So let's create a plane, go to the poly modeling menu and click the plane. 00:28.920 --> 00:33.020 I'll head F to frame up on it and then I'll hit G and make another one. 00:33.330 --> 00:39.170 And of course, G is the shortcut for just doing the previous operation again. 00:39.180 --> 00:45.330 So then I'll move these kind of close together to make our job easier here in a minute and drag these 00:45.330 --> 00:46.790 kind of back in the center here. 00:47.430 --> 00:52.620 So the two planes we have have the exact same number of loops. 00:53.490 --> 00:59.190 And so if we wanted to combine them and be pretty straightforward, we just need to merge these edges 00:59.190 --> 00:59.550 down. 00:59.580 --> 00:59.970 Right. 01:00.480 --> 01:02.470 So that they would all line up perfectly. 01:03.300 --> 01:08.160 That's not what happens in modeling, especially in organic modeling, where you have an area of high 01:08.160 --> 01:13.260 density like the head that have a larger surface area. 01:13.260 --> 01:19.560 So there's more edges to describe it and it needs to all feed into the eyeball or the eyelid into an 01:19.560 --> 01:21.970 area of much smaller area. 01:21.990 --> 01:24.210 So not all the edge loops can fit in there. 01:24.630 --> 01:29.220 So let's take this kind of simplified version here of these two planes. 01:29.580 --> 01:35.940 And first, we'll do this one on the left has ten edge loops and let's do this one on the right has 01:35.940 --> 01:36.300 eight. 01:37.290 --> 01:42.900 So try to follow along if you can, because it'll make a lot more sense because this can be very confusing. 01:43.200 --> 01:50.370 And you probably don't want to bookmark this video specifically to revisit because you're going to run 01:50.370 --> 01:56.880 into this issue again and again and an organic modeling and you're going to have to remember all the 01:56.880 --> 01:57.290 time. 01:57.300 --> 01:57.570 All right. 01:57.580 --> 01:58.380 How do I resolve this? 01:58.380 --> 02:02.390 How do I, you know, combine an area of higher density of loops into lower? 02:02.640 --> 02:07.430 So fortunately, this first example is going to be the easiest type. 02:07.740 --> 02:12.670 So we have both even number of objectives we have over here and eight over here. 02:13.050 --> 02:18.090 So before we can start combining edges, we need to merge these two meshes down. 02:18.420 --> 02:20.910 We can see in outliner there's plain one in plain to. 02:20.910 --> 02:23.850 So there are two different pieces of meshes. 02:23.850 --> 02:24.720 They're not the same. 02:25.020 --> 02:26.040 So we need to combine them. 02:26.040 --> 02:27.140 So I'll shift select. 02:27.150 --> 02:31.200 So I have both of them selected and I'll go to Mesh Combine. 02:33.570 --> 02:39.000 And you can see that now there's one plane that we have selected and it has both sides selected, so 02:39.000 --> 02:41.810 we know it's combined, but we have these empty groups over here. 02:41.820 --> 02:42.750 It looks kind of messy. 02:42.750 --> 02:44.850 And this is part of the history that Maya creates. 02:44.850 --> 02:49.200 When you do a big operation like combine, you can see it has the inputs over here. 02:49.210 --> 02:50.570 There's there's the Unite one. 02:50.940 --> 02:54.060 And so to get rid of these empty groups, you could just delete them. 02:54.060 --> 02:57.390 But the cleaner way to do it is to delete the history which we've done before. 02:57.660 --> 03:01.650 So let's go to edit, delete by type. 03:01.650 --> 03:03.540 And again, let's just do this one, not the bottom. 03:03.540 --> 03:04.890 And this will delete everything in the scene. 03:04.890 --> 03:05.460 We don't want that. 03:05.460 --> 03:10.890 We want this top one delete by type history and then that gets rid of those empty groups and it cleans 03:10.890 --> 03:11.690 up the outliner. 03:12.000 --> 03:13.320 And so now let's get to work. 03:13.960 --> 03:17.730 Let's go to the edge operation here, right. 03:17.730 --> 03:22.920 Clicking and dragging to it and click and drag these two edges that are kind of matched up together. 03:23.580 --> 03:32.220 And let's go to the edit mesh and I'm going to tear this menu off and we're going to go down to the 03:32.220 --> 03:33.990 merge option here. 03:34.620 --> 03:36.520 And there's a couple different ways you could do it. 03:36.520 --> 03:37.290 You get hit, merge. 03:38.250 --> 03:39.120 Nothing happens. 03:39.660 --> 03:40.680 Why did nothing happened? 03:41.070 --> 03:42.630 Well, let's look at this tolerance value. 03:42.630 --> 03:44.070 It's it's set at zero right now. 03:44.070 --> 03:47.820 But as soon as we drag that up a little bit, a tolerance value is a distance. 03:48.000 --> 03:52.980 And when you increase the distance it's looking for, it's going to start to find that distance. 03:52.980 --> 03:57.300 So we can see it's probably these two pieces are like point to units apart. 03:57.300 --> 03:58.860 So that's when it starts to merge them. 03:59.550 --> 04:03.870 So let's click and drag and do that for all of the edges down here. 04:03.870 --> 04:09.330 We're going to bring up the merge tool again and merge these down. 04:10.360 --> 04:16.270 And again, you may have to increase that tolerance value each time you go. 04:18.660 --> 04:24.270 Energy and just increased tolerance, so you can do more than one at a time, but you'll see as soon 04:24.270 --> 04:28.500 as you start to get where, you know there's two right next to each other that you don't want to be 04:28.500 --> 04:28.770 Marje. 04:28.770 --> 04:31.020 You have to do them by themselves, of course. 04:31.440 --> 04:33.720 So then what do we do here? 04:33.900 --> 04:35.610 This is what the lesson is all about. 04:35.770 --> 04:39.800 OK, we need to figure out a way to deal with this. 04:40.260 --> 04:41.730 So how do we do that? 04:41.970 --> 04:47.770 Why can't we just merge, pull us over to see over and just have that be what it is? 04:47.790 --> 04:52.770 Well, in animation, when that starts happening and defamations happen, you'll get a gap here. 04:52.800 --> 04:59.970 You'll be able to see through the model or this will bend in a weird way so that shadows and reflections 04:59.970 --> 05:01.890 will look very odd. 05:02.310 --> 05:07.590 So that's why in modeling and organic modeling, you always want to have Quad's, and that means each 05:07.590 --> 05:09.120 face needs four sides. 05:09.540 --> 05:13.020 You never want to have a face with five sides, which is called an end gone. 05:13.530 --> 05:15.090 That's in Geon. 05:15.480 --> 05:19.590 And you don't want to have a face that has three sides, which is a try a triangle. 05:20.280 --> 05:23.280 So those are the parameters you need to work in. 05:23.280 --> 05:24.600 Everything has to be acquired. 05:24.630 --> 05:30.330 That's why we can't just pull this over and call it a day, because if we try to merge this here, then 05:30.360 --> 05:32.850 that would create a new edge for this face right here. 05:33.600 --> 05:38.730 And instead of this face having four edges now, it would have five and now and making it an in gone, 05:39.030 --> 05:44.760 we would have an edge at the top here, an edge right here and then three more. 05:44.760 --> 05:45.890 So I'd make it five. 05:46.350 --> 05:54.370 So we need to figure out how to keep it to four edges so that each face is acquired, OK. 05:54.510 --> 05:57.900 So without understanding, we need to figure out how to resolve this. 05:58.350 --> 06:01.800 And this is very similar to the example we saw above. 06:02.250 --> 06:05.040 So I'm going to show you how to do that now. 06:06.930 --> 06:07.850 So I'm going to show you how to do that. 06:07.860 --> 06:12.990 Now, let's select both of these and scale them in. 06:14.420 --> 06:22.850 So now we can merge all three of these vertices down, let's merge these down and you'll see where I'm 06:22.850 --> 06:24.010 going with this here in a second. 06:24.590 --> 06:27.290 So we'll create some problems for ourselves and then we'll solve them. 06:27.350 --> 06:31.240 OK, so now we can at least combine these two edges. 06:31.820 --> 06:34.040 So let's select those and G to merge those. 06:34.640 --> 06:36.260 Oh, that G over here to merge that. 06:37.350 --> 06:39.100 So what did I say earlier. 06:39.110 --> 06:41.320 We don't want triangles and what do I have here. 06:41.330 --> 06:42.680 I have two triangles. 06:43.190 --> 06:44.750 They happen to be right next to each other. 06:45.020 --> 06:46.040 So what does that mean. 06:46.550 --> 06:49.640 That means we can delete the edge in the middle. 06:50.690 --> 06:51.320 Let's do that. 06:52.130 --> 06:54.170 So we've deleted this edge in the middle and the middle. 06:54.440 --> 06:56.090 It's still looks like a triangle. 06:56.360 --> 06:58.840 But if we count the number of edges, it's actually four. 06:58.850 --> 07:01.040 There's one here, one here, one here and one here. 07:01.040 --> 07:01.580 That's four. 07:02.270 --> 07:04.880 So even though it looks like a triangle, it has four edges. 07:05.210 --> 07:06.320 So it's acquired. 07:06.950 --> 07:13.490 And we can do we can make this look like a quad just by going to the vertices here and pulling this 07:13.490 --> 07:13.870 one out. 07:13.880 --> 07:16.940 Now, we can see a little better that there are, in fact, four edges. 07:17.630 --> 07:26.420 So that's how we get down to reducing an area of high density of wedge flow into a low density of flow. 07:26.930 --> 07:29.570 And there's one other little tool I'll show just very briefly. 07:29.580 --> 07:32.330 We can talk about this a little later as well. 07:32.750 --> 07:38.900 But if I wanted to resolve this kind of messy look to the edge flow here with a different tool, we 07:38.900 --> 07:41.720 could go to sculpting and choose this one right here. 07:41.720 --> 07:43.280 This is the relaxed tool. 07:43.850 --> 07:46.950 If I click this, I need to select the polygon mesh. 07:46.970 --> 07:48.130 I'll select the face. 07:48.140 --> 07:50.960 You can see everything kind of grays out the edge flow does. 07:51.440 --> 07:56.030 And it tells me I'm sculpting on this shape, this plane here. 07:57.290 --> 08:00.560 And what the relaxed tool does is it will not change. 08:00.860 --> 08:03.200 It will not sculpt on this polygon. 08:03.200 --> 08:06.140 I won't raise or lower it or deform it in any way. 08:06.350 --> 08:09.260 What it will do is relax the edge flow. 08:09.710 --> 08:14.660 And if your brush size is too big, you can hold down B and Middle Mouse Dragon will change the brush 08:14.660 --> 08:14.900 size. 08:14.900 --> 08:15.800 So it's way too big. 08:16.100 --> 08:22.100 Just scale it down here with the middle mouse and holding B and if I click and just kind of hold down 08:22.100 --> 08:25.700 my mouse and drag around, you can see it just relaxing the edge flow here. 08:26.150 --> 08:30.650 So it makes it flow into the next area a lot more cleanly. 08:31.250 --> 08:36.020 And it did that kind of pull out force here where this face, instead of looking like a triangle, looks 08:36.020 --> 08:39.650 more like a quad now and again, and it just doesn't look like it. 08:39.650 --> 08:43.670 But but by geometric components of its edges, it is, in fact a quad. 08:43.940 --> 08:48.740 That's how we do a reduction of air flow from an area of high to low. 08:49.040 --> 08:56.510 And the next lesson we're going to cover the more difficult version of this of odd number, and that 08:56.510 --> 09:01.610 will take a little more problem solving and puzzle solving. 09:02.000 --> 09:08.810 So some people find this very fun because it is like solving a puzzle and other times can be very frustrating 09:08.810 --> 09:10.160 when trying to figure this out. 09:10.550 --> 09:15.170 So I hope this makes sense and how to merge areas of high density and low density. 09:15.530 --> 09:18.650 Let's move on to a more advanced problem in the next lesson. 09:18.770 --> 09:19.430 Thanks for watching.