WEBVTT 00:00.060 --> 00:05.640 In this lesson, let's continue to break down this walk cycle so we can see that we have some keyframes 00:05.640 --> 00:08.910 over here and we have a big gap here where there are no keyframe. 00:08.930 --> 00:14.850 So when in doubt, you can always go to the middle keyframe or set a metal keyframe between two large 00:14.850 --> 00:20.160 distances between keys and then evaluate what's wrong with it and fix it on that keyframe. 00:20.430 --> 00:25.560 And you can break it down in half again and do the same thing until you get to the previous key frame 00:25.560 --> 00:26.520 that you know is correct. 00:26.910 --> 00:32.100 So that's one way to kind of breakdown animation into pieces and not get overwhelmed with, you know, 00:32.130 --> 00:32.910 what do I do next? 00:32.910 --> 00:33.900 I'm not sure what to do next. 00:33.930 --> 00:34.830 Well, you know what? 00:34.830 --> 00:37.470 Go in between those two key frames and start setting keys. 00:37.860 --> 00:43.740 So the one thing we need to look at first is the fact that we might not have keys on every key frame. 00:44.010 --> 00:48.300 So we want to make sure that when we select everything shifts like the locator off. 00:48.300 --> 00:55.050 And let me just turn off the joints and the geometry selection up there and dislike the locator. 00:55.320 --> 01:00.790 I just want to make sure I have a key on everything on frame 10 and a key on everything on frame 20. 01:01.180 --> 01:03.000 Same thing on 30 and 40. 01:03.070 --> 01:05.970 So I'm just going through and hitting s on those when I go to 15. 01:05.970 --> 01:12.390 I know that there's a landmark here and there's a landmark here so that if I start making some any changes 01:12.390 --> 01:18.210 on the screen 15, it's not going to be trying to interpolate from the first frame all the way through 01:18.210 --> 01:21.720 to this frame will have a landmark key frame here. 01:22.120 --> 01:23.850 OK, so we take a look at this. 01:23.850 --> 01:26.340 Like I said, this is going to be the middle key frame. 01:26.340 --> 01:31.170 And again, so I can select everything, deselect, select the shift, select the locator deselected 01:31.590 --> 01:37.620 and s I can already see that, you know, this is wrong, that the heel should still be on the ground 01:37.620 --> 01:38.880 so I can go here and hit zero. 01:39.480 --> 01:40.770 So I know that's right now. 01:41.040 --> 01:45.120 And the other thing I need to look at is the fact that this foot is starting to get a little wonky. 01:45.480 --> 01:45.800 Right. 01:45.810 --> 01:52.470 The distance it's off of the ground is quite a bit and its position is a little weird because we have 01:52.470 --> 01:56.460 an image of the foot roll and we've animated this rotate X. 01:56.940 --> 02:04.470 So we know that on this key frame we have foot roll initiated and we have rotate x our kind of combating 02:04.470 --> 02:04.980 each other. 02:05.400 --> 02:07.800 So I'm going to create these panels again. 02:07.800 --> 02:12.180 Go Layout's two panes stacked and I'm going to bring in the graph editor. 02:15.140 --> 02:21.180 And what we can do is we can kind of force this to be what we want it to be, right. 02:21.230 --> 02:27.420 We know you want this foot roll to be what takes over, but we don't want to take over just yet. 02:27.440 --> 02:32.810 This it's kind of still be flat footed a little bit as it transitions into that role. 02:33.140 --> 02:35.720 And this foot is way too high off the ground. 02:35.970 --> 02:42.920 So let's bring this down a little bit and let's bring back this rotation. 02:42.920 --> 02:43.660 Just a touch. 02:44.630 --> 02:48.050 So it's still dragging across the ground pretty closely. 02:48.200 --> 02:55.880 OK, so now we can see that in this transition, this toe is just grazing the top of the ground and 02:55.880 --> 03:00.350 it could even maybe do a better job here and stay a little bit closer to the ground. 03:04.140 --> 03:09.390 Because if you remember, humans try to walk as efficiently as possible, if we're talking about a kind 03:09.390 --> 03:15.700 of a generic walk so that foot should not go very far off the ground tool. 03:16.440 --> 03:22.050 So now we can see that we've created a pretty decent breakdown for that frame and that little section 03:22.050 --> 03:22.710 of this walk. 03:30.180 --> 03:34.590 We also have to keep in mind that we animated the rotate why, but it looks like we also left out the 03:34.590 --> 03:36.030 ROTC on the other side. 03:36.300 --> 03:39.110 So we need to go down here and kind of mirror this. 03:39.120 --> 03:41.970 This is one thing that we forgot to do on this side. 03:41.980 --> 03:48.120 So if we look at frame 10, this is very ---eyed to the side as it tries to lift up this hip, this 03:48.120 --> 03:48.900 hip rises. 03:49.110 --> 03:51.170 So we need to do the same thing on frame 30 here. 03:51.180 --> 03:53.310 So let's take a look at this frame is nine. 03:53.640 --> 03:56.320 So let's go to nine down here. 03:56.350 --> 04:00.060 We have negative eight, negative nine ish. 04:01.020 --> 04:05.370 And so now that's also going to affect our keyframes and how this is animated. 04:05.670 --> 04:09.360 She can delete that key frame so I can kind of smoothly go in between each other. 04:09.630 --> 04:14.250 And same thing that we saw on the translate of the Kong back and forth. 04:14.550 --> 04:21.210 If we looked at this as Infinity got a curse post infinity cycle, there's no reason that these curves 04:21.420 --> 04:24.950 should slow down at this kind of middle junction here. 04:25.290 --> 04:29.750 They should stay consistent so we can go to a spline tangent and the curve. 04:29.760 --> 04:34.830 So now I can see that this continues nice and smooth through the cycle. 04:36.060 --> 04:36.420 Cool. 04:37.380 --> 04:41.010 So now let's play this back and see what else we need to be fixing. 04:42.480 --> 04:45.540 We need to do this for this other pose down here. 04:45.540 --> 04:49.370 We see 30 to 40 to 35 and do the same thing. 04:49.740 --> 04:57.690 So let's keep the heel in the ground, will go to zero that out and then we will fix this and we will 04:57.840 --> 04:59.790 zero out the roll. 05:00.900 --> 05:03.930 And that's actually pretty good. 05:03.930 --> 05:12.600 I think I want to bring the center of gravity down, just touch so that this leg doesn't get hyperextended. 05:13.090 --> 05:15.480 Do the same thing for its sister over here. 05:15.510 --> 05:21.750 That's brother sister, keyframe twin, I guess I should say, and make sure that the center of gravity 05:21.750 --> 05:22.710 is doing the right thing. 05:23.760 --> 05:25.080 And now let's take a look at this. 05:28.220 --> 05:30.080 It's already looking a lot better. 05:30.530 --> 05:41.350 We do have some props on these transitions so we can do is go in here and fix those with the foot roll. 05:41.840 --> 05:45.320 So if we think about a foot roll, it's kind of like a bouncing ball. 05:45.320 --> 05:48.530 The foot roll shouldn't necessarily slow down. 05:48.530 --> 05:52.220 So let's make that to be a linear tangent. 05:52.220 --> 05:53.800 So it comes in very fast. 05:54.470 --> 05:55.670 So it does that. 05:58.700 --> 06:05.510 We might have it fixed in EPOP force, let's make that linear, rather, and so now it's coming in straight. 06:05.690 --> 06:10.240 I can see it kind of bends here and then it gets straight and it bends again. 06:10.670 --> 06:13.450 So we want to fix that. 06:13.810 --> 06:15.760 And there's a couple different ways we could do that. 06:16.250 --> 06:19.420 I think the easiest might be with the center of gravity. 06:20.060 --> 06:24.020 Let's just fix this tangent here and go back to Spline on that. 06:24.020 --> 06:27.130 We had kind of done something a little different there. 06:27.140 --> 06:30.740 So let's maybe bring this down just a touch. 06:31.070 --> 06:34.340 And basically, there's no right way to go about doing this. 06:34.340 --> 06:38.720 But what I what catches my eye is what I'm trying to fix are these little knee pops. 06:39.500 --> 06:43.040 And right now, it's looking a lot better. 06:43.850 --> 06:50.390 When I see that knee not get so straight here, I'm going to bring that back. 06:50.390 --> 06:51.110 That translate. 06:51.110 --> 06:52.040 Why back down? 06:53.530 --> 06:57.250 And I think even there, it's getting to. 06:58.500 --> 07:04.760 Right, I want it to be consistent, it pops here to bend and then it should stay there or go further. 07:05.130 --> 07:12.060 So I think we do need to bring this down even more or even our changes tangent handle. 07:12.060 --> 07:12.450 Right. 07:12.730 --> 07:13.930 We can do that as well. 07:14.670 --> 07:16.620 So now it bends. 07:17.490 --> 07:19.830 Yeah, we really need this to go down more. 07:20.310 --> 07:23.710 Just bring this back down as we did originally in previous lesson. 07:24.300 --> 07:32.730 So now we can see this cycle over here and where my cursor is and it's dragging down and now the knee 07:32.730 --> 07:37.020 doesn't pop as much and now we can do the same thing for this side. 07:41.950 --> 07:48.910 And we can see that he kind of gets a little straight here so we can drag this down and adjust this 07:48.910 --> 07:49.680 curve as well. 07:54.790 --> 08:03.310 So I want to make sure that this leg is also getting pretty straight so we can maybe bring back the 08:03.310 --> 08:05.100 translate Z a little bit here. 08:05.620 --> 08:08.970 So just like we're going forward with that, we could also bring it back. 08:09.340 --> 08:11.440 So on this frame. 08:12.600 --> 08:15.280 Let's see if we can't bring the translator back. 08:20.010 --> 08:24.900 Almost like an equal distance of this value, so we have a point three, so this will be like point 08:24.900 --> 08:25.920 to something. 08:26.700 --> 08:30.900 So now we have it goes backwards, now it goes forwards. 08:32.200 --> 08:37.330 And that's looking pretty good, and now it definitely gets straight here, so let's see if we have 08:37.330 --> 08:38.980 translate Z in the right spot. 08:42.300 --> 08:48.540 And after this frame, we wanted to keep it going down, if we remember right, so here is going to 08:48.540 --> 08:54.840 be the equivalent of this frame so we can actually just hit command, see, and we could go four frames 08:54.840 --> 08:59.490 forward from frame twenty one to three, four and pace that. 08:59.790 --> 09:00.210 All right. 09:01.230 --> 09:03.540 So now we have the equivalent on that frame. 09:05.010 --> 09:11.430 So now that definitely helps out that knee part, but it looks like it's getting a little too straight 09:11.430 --> 09:16.620 there so we could even bring this foot roll up just a touch and that'll help in the knee a little bit. 09:17.200 --> 09:24.240 We can also make sure, I suspect, that this translate why maybe isn't as far as knees go, you have 09:24.240 --> 09:29.910 negative 14, that's negative 14, and you bring it down just a little bit more. 09:30.750 --> 09:36.450 Let's go to translate X here and for the Kog and make sure that that is right. 09:36.510 --> 09:37.620 Yeah, that's on zero. 09:38.140 --> 09:42.750 And it looks like this didn't take from the previous lesson, so I'm just going to make sure that's 09:42.750 --> 09:43.320 correct. 09:44.640 --> 09:47.040 And now we can see that. 09:48.390 --> 09:55.770 This kind of surges forward here, you make sure that the the foot itself on the translator is doing 09:55.770 --> 09:56.400 what it should do. 09:56.560 --> 09:57.480 It looks like it is. 09:58.740 --> 10:01.080 And the foot roll is doing what it is. 10:01.080 --> 10:04.700 It looks like maybe here is the problem. 10:07.120 --> 10:08.750 Let's see, let's scrub through here. 10:09.820 --> 10:13.420 I mean, it's not super far off, but it should be doing. 10:22.250 --> 10:28.220 But you can see where this the knee, if we if we take, you know, one one thing I like to do is to 10:28.220 --> 10:31.250 turn on this kind of field chart. 10:31.250 --> 10:32.870 So we click this little button here. 10:33.230 --> 10:34.130 We get a grid. 10:34.530 --> 10:39.860 So if we move our camera with a position, this kind of crosshairs to be wherever we want it to be. 10:40.670 --> 10:47.030 And so we can kind of see and screen space, where does that nego doing what it should do, see how 10:47.030 --> 10:51.890 it goes straight and then it goes down and then it goes for its surges forward there. 10:52.400 --> 10:53.370 That's what I'm trying. 10:53.390 --> 10:55.220 That's what's catching my eye and I'm trying to prevent. 10:55.910 --> 10:58.940 So if we look at the other leg, let's see if the other leg does. 10:58.940 --> 11:01.390 It goes forward, it goes down. 11:01.400 --> 11:06.160 And then for it's not as bad, really kind of has a much better motion there. 11:06.530 --> 11:07.820 So it's really just this other knee. 11:07.820 --> 11:09.430 We need to figure out why is that happening? 11:09.440 --> 11:17.840 I think what it is, is this let's take a look at the two foot rolls so we can isolate those in the 11:17.840 --> 11:18.140 graph. 11:18.140 --> 11:18.510 Editor. 11:18.530 --> 11:20.530 I'm going to roll here and roll there. 11:21.350 --> 11:25.130 So, yeah, they look they definitely look different. 11:26.990 --> 11:34.300 And we can see that, OK, at this stage of the game for this foot is right almost to 20. 11:34.760 --> 11:38.650 So we know the equivalent of that for this other foot as far as that this frame over here. 11:40.130 --> 11:40.670 So. 11:41.960 --> 11:48.920 It's this one, so it should be going up there, so for this one over here, it should be doing the 11:48.920 --> 11:54.120 same thing and it pretty much is, which is what's confusing. 11:54.770 --> 11:57.800 Why is this not behaving the way I want it to? 12:00.710 --> 12:03.740 And I think what we need to do is just. 12:04.840 --> 12:09.880 Make this work for us and bring this foot roll down, see how that's straightening out the knee. 12:11.220 --> 12:12.900 I think that's going to be their best bet. 12:23.120 --> 12:29.390 Let's get a keyframe here and then let's go forward and set it to be what we want it to over here. 12:30.230 --> 12:33.170 So now it keeps it from popping the knee a little bit. 12:38.270 --> 12:38.560 Cool. 12:39.150 --> 12:44.900 So it's sort of looking a lot better in terms of field guide there, aren't we, to play back? 12:45.680 --> 12:50.840 And you can see from the first lesson to now, we have made a huge, huge improvement. 12:51.080 --> 12:52.990 And again, like, look at the hips, right. 12:53.180 --> 12:54.910 It's swaying side to side. 12:54.920 --> 12:57.620 The weight is being transferred properly to each foot. 12:57.980 --> 13:03.400 The other thing we could do on these feet is we can actually bring them to the center right. 13:03.710 --> 13:09.170 So when we're walking, we actually have our weight more over the center. 13:09.170 --> 13:10.270 So let's look at that. 13:10.280 --> 13:14.570 Let's go to translate X, we notes translate X because of this red arrow here. 13:15.110 --> 13:21.950 And when the foot is moving, when it's on the ground, rather, it should be a little closer to the 13:21.950 --> 13:22.460 middle. 13:22.670 --> 13:27.320 OK, so let's just grab everything and bring it closer to the middle. 13:27.500 --> 13:27.730 All right. 13:27.740 --> 13:29.090 Because that's where our center of gravity is. 13:29.300 --> 13:33.160 Our center gravity should be trying to get over our foot and our foot should be trying to get under 13:33.160 --> 13:33.980 our center of gravity. 13:33.980 --> 13:36.990 So it's kind of a team effort there between those two things. 13:36.990 --> 13:42.290 So I just moved I selected all the key frames and I middle mouse drag them. 13:42.470 --> 13:46.810 So now all the animations getting moved over, OK, and I want to go all the way to the middle. 13:46.820 --> 13:49.940 We can see the grid here, which is this little button. 13:50.780 --> 13:52.760 We can see this line is the middle. 13:52.960 --> 13:59.000 And I want to go all the way to the middle with it so we can just make sure we're not just on the other 13:59.000 --> 14:00.110 side of the middle. 14:01.130 --> 14:06.830 And then we can figure out when is it off of the ground. 14:08.100 --> 14:16.560 Which is over here and now on this in between, which will be maybe frame 30 ish, we can move it over 14:16.560 --> 14:18.180 to the side, back to where it was. 14:18.190 --> 14:20.550 So let's go to frame 25, hit a key frame. 14:21.990 --> 14:27.360 And that's kind of the last point where it lifts off the ground and then we can move this back over. 14:27.360 --> 14:31.540 So it gives room for this foot to to be in the middle when it's at its turn. 14:32.460 --> 14:35.610 So then it goes back towards the middle where it's going to land again. 14:35.880 --> 14:36.300 Cool. 14:36.660 --> 14:38.100 So it's the same thing for the side. 14:38.730 --> 14:44.880 I'll take translate X and we'll just grab everything and get to where it's on the ground actually. 14:45.270 --> 14:47.730 And let's just move it towards the center. 14:50.770 --> 14:56.560 And then when it's off the ground, let's just move that keyframe, which will be looks like in here 14:56.590 --> 15:02.380 frame tends to keep him, you know, I'm always doing the middle part, right, like one to 10. 15:02.380 --> 15:07.150 So I'm going to five and hitting key, which is kind of like the one of the last points. 15:07.150 --> 15:08.440 It's off the ground back here. 15:08.650 --> 15:09.580 I guess not really. 15:09.580 --> 15:16.000 Like, if we look at from this other side, it could even start moving to, you know, we can even just 15:16.000 --> 15:22.060 delete that and oops, I mean, hit delete without selecting a key frame there. 15:22.460 --> 15:28.660 I'm going to actually go right click delete on from the timeline and now we can drag this over. 15:29.200 --> 15:30.280 So it's out of the way. 15:30.280 --> 15:33.280 You can see how now the the feet are running into each other. 15:34.900 --> 15:38.290 So we need to make sure that this is kind of clearing that foot. 15:39.880 --> 15:46.270 And now when it goes back towards the middle, we can actually bring that keyframe back up. 15:47.170 --> 15:49.840 So we're only only worried about contacts. 15:49.840 --> 15:53.970 As soon as this contacts the ground, it should not translate side to side anymore. 15:54.010 --> 15:54.340 Right. 15:54.640 --> 15:55.520 So it's the same thing. 15:55.540 --> 15:58.150 Make sure we're getting it at the right point on this side. 15:58.150 --> 16:00.730 So it's got to translate X and. 16:00.730 --> 16:09.610 Yeah, and here I think we can get rid of this key frame and then now it goes to the front. 16:10.430 --> 16:14.050 As soon as it lands then we'll be good call. 16:15.570 --> 16:16.830 And let's take a look at that. 16:23.430 --> 16:24.870 So it's looking a lot better. 16:28.100 --> 16:33.890 So we can see to that it looks like this is maybe snapping a little bit so we can bring this down and 16:33.920 --> 16:38.930 just kind of massage the stuff, you know, we don't want to ever have any pops be the most distracting 16:38.930 --> 16:39.890 thing about a walk. 16:40.880 --> 16:42.230 So let's just go through this. 16:42.230 --> 16:42.920 And again. 16:44.770 --> 16:47.730 Kind of imagine what should really be happening here. 16:48.680 --> 16:53.190 And once we get the body going, well, we can further refine this as well. 16:53.750 --> 16:59.870 I think we might want the role to start happening maybe a little bit here so we can drag the foot roll 16:59.870 --> 17:00.530 down. 17:01.910 --> 17:03.140 That'll help that from. 17:06.650 --> 17:07.880 Snapping too much, 17:11.120 --> 17:16.970 and if I ever affect a key frame on the end, I need to do it at the beginning as well, because this 17:16.970 --> 17:18.030 is the cycle, right? 17:18.050 --> 17:19.490 These are the two key frames. 17:19.490 --> 17:25.730 If we move one, it will break the cycle because it's going to these should be the same keys, because 17:25.730 --> 17:28.850 as we play through, it's going to loop back to that key frame. 17:29.090 --> 17:31.330 If those don't match up, it's going to break the cycle. 17:31.850 --> 17:34.460 So we can just adjust that a bit. 17:35.150 --> 17:36.860 And that's negative 30. 17:36.890 --> 17:38.860 I just want to make sure that I'm in the ballpark. 17:39.290 --> 17:40.520 That's the negative 28. 17:40.520 --> 17:41.830 So it's pretty, pretty close. 17:48.160 --> 17:54.670 Yeah, so now we have a walk cycle of the legs of the skeleton and the next lesson, we are going to 17:54.670 --> 17:59.200 turn on the upper body and make that work force and we can further refine this a little bit. 17:59.200 --> 18:04.450 It looks like we still have some knee pops, which is the bane of any animator's existence. 18:04.780 --> 18:09.940 And if you do much animation, you will be fixing knee pops for quite some time. 18:10.330 --> 18:13.600 But, yeah, we'll continue to refine this now with the upper body in the next lesson. 18:13.630 --> 18:14.290 Thanks for watching.