WEBVTT 00:00.620 --> 00:06.200 So before we get started into learning dynamics, I want to set up a scene and introduce you to MASH. 00:06.530 --> 00:10.420 MASH is the motion graphics kind of set up for Maya. 00:10.670 --> 00:12.810 So we're going to use it to actually model a brick wall. 00:13.130 --> 00:15.800 Let's create a cube and zoom in on that. 00:16.220 --> 00:21.950 And I'm going to hold down deep drag of the pivot to the bottom while holding V so it snaps to the bottom 00:22.520 --> 00:27.980 and then hold X and snap that to the floor of the scene. 00:28.410 --> 00:36.520 Then I'm going to increase the scale and let's choose the Z direction by two so that it makes a brick 00:36.620 --> 00:37.020 shape. 00:37.550 --> 00:43.190 One thing I have to keep in mind about MASH is you need to freeze the transformations of everything 00:43.190 --> 00:49.430 before you get started because it will not respect this type of pivot moving and all this stuff if it's 00:49.430 --> 00:50.200 not frozen. 00:50.540 --> 00:54.920 So if we were to make a MASH network so that we could duplicate these all these out and make bricks, 00:55.250 --> 00:59.230 you would think the center pivot like is where we made it originally. 00:59.240 --> 01:04.490 So we do freeze transformations first because you modify freeze transformation. 01:04.510 --> 01:05.420 So that's all set. 01:05.720 --> 01:10.040 Sort of MASH won't create MASH network and so. 01:10.880 --> 01:15.420 By default, it just gives you these kinds of rules because it has to choose something. 01:15.440 --> 01:19.000 OK, so let's look at the mash Ed. 01:19.130 --> 01:24.830 So we got this new little window and an outline and you can see there's there's this MASH network and 01:24.830 --> 01:26.120 then there's a group from Mesh. 01:26.510 --> 01:29.930 So basically there's two types of networks you can make. 01:30.350 --> 01:36.680 And when you open up the option box, you can choose MASH, for instance, for instance, or is basically 01:36.680 --> 01:37.220 an instance. 01:37.220 --> 01:41.020 It's not its own independent piece of geometry, whereas MASH creates a mesh. 01:41.420 --> 01:43.200 So it would look different. 01:43.220 --> 01:48.230 If we want to, you know, decide to switch later, we could actually go to utilities and switch mash 01:48.230 --> 01:49.070 geometry type. 01:49.640 --> 01:53.290 We actually have to have the MASH waiter selected is what the thing said. 01:53.720 --> 01:55.530 So switch mash jamshid type. 01:55.560 --> 01:59.840 So now you can see it's an instance where it has a different icon and that means a couple of different 01:59.840 --> 02:02.060 things for how we're going to use it. 02:02.060 --> 02:04.550 But what we need is the geometry. 02:04.550 --> 02:06.730 So we need to switch back to the repro mesh. 02:07.130 --> 02:10.150 And so that's why I didn't go in here, because we didn't need that. 02:10.400 --> 02:12.470 So now we have MASH. 02:12.530 --> 02:17.120 When we click on it in here, we should get to the MASH waiter kind of menu here. 02:17.120 --> 02:18.200 We have all these different options. 02:18.210 --> 02:23.600 We're not going to cover everything right now, but we're going to cover maybe a little bit more later. 02:24.740 --> 02:28.930 So those two kind of big things to think about right now. 02:29.210 --> 02:32.240 And that's the difference from distribute, which is what we're given by default. 02:33.380 --> 02:38.420 We can increase the amount of objects here and distribute, but the endpoint doesn't change. 02:38.490 --> 02:39.970 That's controlled by the distance here. 02:40.010 --> 02:43.640 OK, so it makes it a little harder to keep. 02:43.860 --> 02:48.260 Let's say we like the distance between these bricks for some reason and we just want to add more of 02:48.260 --> 02:48.420 them. 02:48.440 --> 02:53.750 Well, that makes that's pretty difficult with distribute because whatever we want to add more bricks, 02:53.900 --> 02:54.610 we add more bricks. 02:54.620 --> 02:55.930 Now the spacing is all messed up. 02:55.940 --> 02:58.070 Now, we got to go here and try to figure out the spacing again. 02:58.550 --> 03:03.620 So instead of doing that, I like to use the replicator node here. 03:03.950 --> 03:07.370 So to use that, we need to go to distribute and just get this down to one. 03:07.920 --> 03:08.360 All right. 03:08.360 --> 03:09.590 And then zero that out. 03:09.740 --> 03:12.140 So we just we don't want to mess with the distribution. 03:12.290 --> 03:18.770 OK, so we'll go to MASH and then we'll say at the replicator, I'm just left clicking on all this. 03:19.160 --> 03:20.270 So that's another node here. 03:20.270 --> 03:22.220 You can see there's a new tab up here. 03:22.700 --> 03:30.590 And for the replicator, we want to go in the Z position and let's add replicants. 03:31.500 --> 03:38.940 Let's do maybe 10, and so now the difference with the replicant versus the or the replicator versus 03:38.940 --> 03:45.380 distribute is that we can add as many as we want, let's say like the spacing. 03:45.390 --> 03:47.500 So same example like the spacing now. 03:47.730 --> 03:48.650 And we want to add more. 03:48.770 --> 03:50.360 I guess what we can just add as many as we want. 03:50.380 --> 03:52.310 We don't have to worry about the spacing changing. 03:52.680 --> 03:54.530 So that's super helpful. 03:54.960 --> 04:02.330 So we know the distance of the break is too across because we scale it by two. 04:02.640 --> 04:09.570 So if we say one or like let's say one point one hour, sorry, two point one, let's say two point 04:09.570 --> 04:13.110 zero one, because we want like a tiny little gap, so. 04:15.160 --> 04:19.390 You know, that's based off the fact that we scale it by two, so it's going to be two here. 04:19.870 --> 04:23.380 So the geometry is all one piece and that's OK for now. 04:24.670 --> 04:26.650 What we're going to want to do is add another replicator. 04:26.650 --> 04:28.990 So let's add another stack of bricks on top of this. 04:29.320 --> 04:32.290 So I'm clicking this to go back to kind of this little main menu area. 04:32.530 --> 04:40.030 I'll add another replicator and let's go up by one position or one. 04:40.420 --> 04:42.310 And we had replicants here. 04:42.310 --> 04:49.790 We just want one and offset the position as well and the Z. 04:49.810 --> 04:52.750 So let's say we want to offset up by one as well. 04:52.750 --> 04:55.450 So it's right in the middle of this. 04:56.650 --> 05:00.610 And we do want to give it a little bit of a gap because when we use this bullett system, we're going 05:00.610 --> 05:09.270 to use we need just a tiny little gap so things don't explode when it's trying to simulate the collision. 05:09.280 --> 05:10.240 So it's already colliding. 05:10.240 --> 05:13.410 When you start, it's going to blow up and it's not going to be useful. 05:13.780 --> 05:16.180 So that's why we need to create these little gaps between everything. 05:16.450 --> 05:16.760 Cool. 05:17.050 --> 05:22.240 So now we have one layer and there's a couple different ways we could duplicate this out to make a wall 05:22.240 --> 05:23.060 to go vertical. 05:23.440 --> 05:28.610 I'm actually just going to kind of get super, super inception. 05:28.630 --> 05:29.490 Have you seen the movie? 05:29.490 --> 05:31.120 You get kind of Inception with this stuff. 05:31.450 --> 05:36.460 So I'm going to click the repro mesh and actually make a massive network of that. 05:36.490 --> 05:38.530 So this itself is a mesh network. 05:38.830 --> 05:43.620 So we can kind of make another massive network of this one because it's geometry. 05:43.640 --> 05:44.290 We can do that. 05:44.290 --> 05:45.850 If this was an instance, we can do it. 05:46.210 --> 05:52.300 So that's that's the important reason why we're using the repro mesh and the geometry type that we are. 05:52.310 --> 05:53.980 So we say create mesh network. 05:54.370 --> 05:58.350 We get another, you know, match to it automatically hides the first one. 05:58.420 --> 05:59.790 That's just something Masche does. 06:00.400 --> 06:07.580 And so we can again, you know, choose to use the replicator instead of a distributor. 06:07.630 --> 06:12.120 So now, you know, we can see you have two networks we're going to want to work on the second one. 06:12.640 --> 06:14.770 So let's add a replicator. 06:15.460 --> 06:18.100 Let's make that down to one again. 06:18.100 --> 06:20.740 Let's, you know, zero the sound doesn't really matter because we only have one. 06:20.740 --> 06:23.830 But just to keep it clean, then let's go up. 06:23.830 --> 06:27.250 And I guess we need to go up in two because we have two layers. 06:27.520 --> 06:28.900 Really, it's going to be like two point. 06:29.710 --> 06:36.130 I figure what the offset is that we created so we can just go up a certain amount. 06:37.040 --> 06:37.780 I don't know why. 06:37.990 --> 06:41.020 On some random ones, it hides the bottom one. 06:41.260 --> 06:44.080 But luckily for us, you know, we're trying to make a square wall. 06:44.080 --> 06:44.800 It doesn't really matter. 06:44.800 --> 06:45.760 Doesn't do it there. 06:47.770 --> 06:49.180 I haven't spent time troubleshooting that. 06:50.530 --> 06:55.660 So the other thing we could do is just if we want to get this in the center, we could add a transform 06:56.050 --> 07:05.560 node, which is right here, and then we can just come command and clicking in the Z Channel box here, 07:05.950 --> 07:07.270 just kind of centering this up. 07:08.290 --> 07:15.070 And so let's double check the gaps here between it looks like that was pretty that was actually accurate. 07:15.070 --> 07:17.830 So we have an actual gap here which works. 07:18.790 --> 07:22.960 So now we can do is duplicate this out. 07:23.410 --> 07:25.600 So it kind of separated from a mesh network. 07:25.600 --> 07:27.880 So now we're kind of done with all the mesh stuff. 07:28.360 --> 07:32.320 And we have this is an independent piece of geometry now. 07:32.410 --> 07:32.710 All right. 07:32.710 --> 07:38.740 So when the original mesh network, when I call this wall and it actually didn't really matter that 07:38.740 --> 07:44.560 I'm renaming it, because what I'm going to do now, because this is all one piece for the bullet system, 07:44.890 --> 07:47.440 for this to work with the bullet system, we need to separate all this out. 07:47.440 --> 07:50.830 So let's go to modeling mesh separate. 07:51.070 --> 07:52.270 It's going to separate everything. 07:52.660 --> 07:58.570 And then we need to center the pivot of everything, because if you notice, it's all on zero zero. 07:58.870 --> 08:04.420 And we want the for the physics to work, it's going to figure out where each of these bricks should 08:04.420 --> 08:09.190 spin and rotate around for its mass is going to be based on where its center pivot is. 08:09.490 --> 08:14.460 So we need all of these center pivots to be accurate to each brick so we can go to modify center pivot. 08:14.650 --> 08:17.500 So now each one of the center pivots to each of the bricks. 08:17.650 --> 08:18.400 So that works. 08:18.910 --> 08:24.040 And just for fun, I'm also going to edit, delete by type the history. 08:25.030 --> 08:31.960 And now we've created a brick wall that we can use in our next lesson to destroy it. 08:32.470 --> 08:36.970 So I'll see in the next lesson where we will smash a ball through this wall. 08:37.150 --> 08:37.690 Thanks for watching.