WEBVTT 00:00.180 --> 00:05.670 In this lesson, we're going to fix the issue we ran into and the previous lesson we were learning about 00:05.670 --> 00:13.020 skinning and finding the geometry to the joints where the the bones themselves were running into each 00:13.020 --> 00:14.010 other here on the knee. 00:14.760 --> 00:18.000 And let's think about why that's actually happening. 00:18.480 --> 00:25.050 If we take a look at our rig and we look from profile of you on the side, we're slowing down, spacebar 00:25.050 --> 00:30.960 left clicking and then dragging and dropping my mouse over the right camera there. 00:32.620 --> 00:38.080 If you take a look, let's consider what we've created here, we created a joint whose pivot point is 00:38.080 --> 00:40.740 out in front, right out here. 00:41.260 --> 00:47.590 So if you think about this, like the hinge on a door or something and this bottom bone was the door, 00:48.730 --> 00:50.470 it's going to swing from this pivot. 00:50.860 --> 00:53.020 So this is going to swing around this way. 00:53.530 --> 00:57.560 You can see pretty quickly that this edge is going to smash into this one. 00:58.030 --> 01:01.360 So let's think about what if we brought this pivot in? 01:01.810 --> 01:03.700 We brought it closer to the middle. 01:04.390 --> 01:11.020 When it swings, it will take a much greater distance of swing for it to the bones to begin to hit each 01:11.020 --> 01:11.290 other. 01:11.680 --> 01:13.330 So that that's how we're going to fix this. 01:13.330 --> 01:14.890 We're going to move these joints in. 01:15.160 --> 01:20.740 And hopefully that helps you kind of think about how and where to place the actual joints themselves 01:21.040 --> 01:24.060 for their pivot points to work with the model. 01:24.730 --> 01:25.120 Cool. 01:25.150 --> 01:32.110 So let's go to the skin menu up here and we'll go down to move the skin joints. 01:32.920 --> 01:35.410 And when we click that, it kind of looks like nothing happened. 01:35.410 --> 01:41.830 But if you look over here on the left, you can see the economy that selected over here is the last 01:41.830 --> 01:46.150 tool used, but it's also the current one, because if we went to something like this now that's blue. 01:46.150 --> 01:49.150 So we know the blue is what we have selected. 01:49.510 --> 01:56.380 And this is the movie Skin Joints Tool, but it kind of looks similar to the movie tool, but it's specific 01:56.380 --> 01:57.300 to joints. 01:57.310 --> 01:58.380 So let's click and drag. 01:58.390 --> 02:04.900 So we have both joints, the left and right knees, and then let's make sure that we are in the world 02:04.900 --> 02:08.830 setting because we want to push this directly backward and worldspace. 02:09.460 --> 02:12.580 So let's click and drag both of those joints back. 02:12.700 --> 02:17.920 As we do that, you can see the geometry begins to move on parent those first. 02:18.400 --> 02:26.740 So I'll just go up here and look, click the geometry and hit shift and do that for both sides. 02:32.140 --> 02:39.640 Now we go back into the right view and we select the joints and deselect the geometry here, oh, I 02:39.640 --> 02:43.840 think that's still parented there, so I unpermitted it. 02:44.320 --> 02:47.620 So I'm clicking and dragging both the knee joints, the left and the right. 02:47.980 --> 02:54.130 And now I can get back to that tool just by simply clicking this icon over here, the last moved last 02:54.130 --> 02:54.750 used tool. 02:55.090 --> 03:01.810 So if I hold on W and make sure I'm in WorldSpace and then now I can move both of these joints back 03:02.470 --> 03:09.760 and I don't want to go past 180 degrees, they should still be in front of vertical because otherwise 03:09.760 --> 03:12.900 they the joints will start rotating and flipping around. 03:12.910 --> 03:15.850 They're not going to be sure which way is forward. 03:16.120 --> 03:19.120 If we go past 180 degrees, some wonky things could happen. 03:19.120 --> 03:23.320 So I'm just going to leave this right in front of vertical. 03:23.530 --> 03:23.950 All right. 03:23.950 --> 03:25.150 And I'm just thinking vertical. 03:25.480 --> 03:26.830 You know, look at these grid lines. 03:26.830 --> 03:28.390 I don't want to go past this vertical. 03:28.390 --> 03:34.890 I don't want the joint to go past, you know, this imaginary vertical line from one joint to the other. 03:35.440 --> 03:35.810 Cool. 03:36.700 --> 03:46.840 So now let's repair these pieces of geometry here and take a look at what we've made, the changes we've 03:46.840 --> 03:47.260 made. 03:47.610 --> 03:50.590 I'm just going to parent this joint to the bottom one. 03:51.670 --> 04:01.720 Sorry, I'm going to parent the patella bone is what it's called to the lower leg bone, the shin bone. 04:02.260 --> 04:10.810 So now with that change, you can see we can move the leg up a lot higher before they start to run into 04:10.810 --> 04:11.290 each other. 04:12.840 --> 04:16.300 Looks pretty cool, and that might be enough for us. 04:16.920 --> 04:22.650 You know, it's kind of a turn off the joint so we can see I'm going to go to show and turn off joints 04:22.650 --> 04:23.000 here. 04:24.030 --> 04:28.140 You know, I'm not that doesn't really bother me as much as the other one was very obvious that they 04:28.140 --> 04:30.120 were breaking, you know, going into each other. 04:32.310 --> 04:34.860 And we could still maybe do some fixes here. 04:34.860 --> 04:41.790 But I think for the most part that this is working pretty well now and now. 04:41.790 --> 04:45.120 All we have to fix is this patella bone. 04:45.690 --> 04:49.800 And the way that we can do that, there's several different ways we could do that. 04:49.800 --> 04:54.120 But what I think I would like to do is to do a set Gervin Key. 04:54.450 --> 05:00.480 So I'm going to click any of the attributes over here so I can access the set driven key menu here from 05:00.480 --> 05:02.010 the edit menu. 05:02.010 --> 05:04.350 And now I'm going to load that as the driven. 05:04.350 --> 05:05.400 It's loaded as the driven. 05:05.880 --> 05:11.010 I'm just going to select all of these attributes here because I'm not sure which ones I'm exactly going 05:11.010 --> 05:11.940 to effect yet. 05:12.420 --> 05:20.520 So then I'm going to OK, let's think about what we want to drive this just so that we understand how 05:20.520 --> 05:22.380 and why how to think about this. 05:23.070 --> 05:23.790 Sure. 05:24.030 --> 05:25.590 The controller, right. 05:25.590 --> 05:27.900 Is what's controlling that joint. 05:28.350 --> 05:33.060 So if we use this as the driver, what would actually be the driver? 05:33.090 --> 05:33.660 You know what I mean? 05:33.660 --> 05:39.090 If you start to think about this, because it could bend in all different types of directions. 05:39.090 --> 05:39.420 Right. 05:39.810 --> 05:42.290 So it'd be much more difficult to use this as a driver. 05:42.660 --> 05:44.220 Let's think about the joint. 05:44.520 --> 05:45.720 Let's show the joint. 05:46.590 --> 05:55.680 When we move the foot control what's happening to the joints, OK, the joints aren't actually moving 05:55.680 --> 05:56.580 positions. 05:57.000 --> 05:58.440 They're simply just rotating. 05:58.470 --> 05:58.920 Right. 05:59.850 --> 06:01.950 So they get a different rotation value. 06:01.950 --> 06:03.630 Let's let's have it be straight. 06:03.960 --> 06:04.860 Let's look at this bone. 06:05.970 --> 06:10.400 You know, we basically have zeros on the rotation's, there's this little one point seven, six, six, 06:10.410 --> 06:13.350 whatever, but basically the rotations are zero. 06:13.740 --> 06:15.440 So now let's lift this up. 06:16.110 --> 06:17.710 Let's take a look at the rotations again. 06:18.600 --> 06:21.770 Now we have a big value and rotate Z, right. 06:22.560 --> 06:23.070 So. 06:24.230 --> 06:30.950 We could use just this one value to use as the driver for the sedative and key instead of the controller, 06:30.950 --> 06:36.110 which is kind of would be very difficult to use that as the driver of that makes sense why we're choosing 06:36.110 --> 06:37.750 the bone instead of anything else. 06:39.050 --> 06:44.430 So let's load that in as the driver and then choose Rotate Z and Will Seddiqui. 06:45.260 --> 06:52.220 And now let's move up the leg, the foot, rather, to whatever kind of a height you'd like to. 06:54.220 --> 07:00.970 Kind of like to go to like the max, you know, the most change in the shortest amount of time, and 07:01.360 --> 07:07.330 then all I have to do is just move this in the position that I'd like it to be in. 07:09.310 --> 07:12.880 Somewhere in here to stay in front of the knee joint. 07:16.170 --> 07:18.660 And maybe push it and a little bit. 07:19.790 --> 07:21.240 And now I'll hit key there. 07:22.520 --> 07:31.180 So when we move this up and down now the patella bone joint stays in front of the knee. 07:31.970 --> 07:32.560 It's pretty cool. 07:32.660 --> 07:34.760 So go ahead and do that for the other leg. 07:35.210 --> 07:41.480 And in the next lesson, we will move up the rest of the body and finish skinning the model. 07:41.930 --> 07:42.560 Thanks for watching.