WEBVTT 00:00.840 --> 00:06.720 In this lesson, we're going to learn about creating control for the foot and what is called set driven 00:06.720 --> 00:09.290 keys or SDK for short. 00:09.840 --> 00:16.230 So let's create the control for the right foot right now and we'll create a circle curve here by going 00:16.230 --> 00:17.790 to the curved shelf. 00:17.790 --> 00:20.480 And we want the pivot of this to be at the ankle. 00:20.490 --> 00:24.960 So we're going to hold down V and middle mouse drag and try to vertically snap that to the middle of 00:24.960 --> 00:25.500 this joint. 00:26.520 --> 00:27.300 Now we have that. 00:27.300 --> 00:31.320 Let's right click on the curve and go to control vertex and drag that to the bottom. 00:31.740 --> 00:39.990 If we try to click, like drag that, we won't be able to because it's trying to grab the AK and the 00:39.990 --> 00:40.350 joint. 00:40.360 --> 00:43.020 So let's turn off the visibility for that. 00:43.380 --> 00:45.200 And now we can grab that with no problem. 00:45.570 --> 00:52.980 Let's go to the right view and we can just hold on X and snap that to the bottom to the zero of the 00:52.980 --> 00:53.610 WorldSpace. 00:54.010 --> 00:55.220 Let's go back to perspective. 00:55.230 --> 01:02.610 And now let's turn back on polygons and we can see where we need to drag these points to to create our 01:03.480 --> 01:06.210 control rig for the heel and the and the foot. 01:06.840 --> 01:11.790 So I'm just going to take a second to create my own little curve here. 01:20.170 --> 01:25.630 So the one the one thing I'm going to do is just lift up the heel here, just a touch so that we actually 01:25.630 --> 01:29.290 have something to select when the foot is flat on the ground. 01:29.290 --> 01:31.170 Otherwise the foot's flat on the ground. 01:31.180 --> 01:32.800 Might be hard to see and select this thing. 01:32.800 --> 01:35.350 So that's why I'm just going to grab the heel and put up. 01:35.350 --> 01:40.420 You can you can make any kind of design that you'd like, but this is just one little kind of variation 01:40.420 --> 01:47.260 I'm going to do so that I can actually see and select this control when it's flush with the ground. 01:47.860 --> 01:50.710 So that actually has something sticking up in the Y axis. 01:51.670 --> 01:53.470 So now we have that control. 01:54.070 --> 01:58.330 Let's constrain the joints down to that. 01:58.330 --> 02:03.940 So let's turn off the polygons again so we can see what we're going to be working with and turn back 02:03.940 --> 02:07.420 on the joints and we can turn on like a handles as well. 02:08.780 --> 02:11.890 So we want all of this to follow. 02:11.890 --> 02:12.930 This I can handle. 02:13.270 --> 02:21.130 So we need to constrain this heel to the like controller as well. 02:21.140 --> 02:22.510 So, OK, let's do that. 02:22.900 --> 02:25.780 So let's constrain the heel to the control. 02:26.320 --> 02:28.300 And I'm just going to change the color here. 02:28.300 --> 02:33.280 So it's a little easier to see like we did before, go to drawing overrides and enable that. 02:33.280 --> 02:36.400 And for the left side, I like to use Ballou's. 02:37.210 --> 02:39.790 So I'm going to find the blue color and use that. 02:41.560 --> 02:47.050 So like before, we want to try to keep the rotation open on this joint because we're going to use this 02:47.050 --> 02:50.560 later so we don't want to constrain the actual joint itself. 02:50.860 --> 02:55.960 So you guessed it, that means we need to create a group for this heel so that we can constrain it in 02:55.960 --> 02:56.410 the group. 02:56.920 --> 03:05.020 So I'm going to click that and I'm going to copy it and then I'm going to group it. 03:05.470 --> 03:13.780 We can just use control gear and I'm going to go left heel group and now I'm going to use that group 03:14.050 --> 03:15.520 to constrain to the heel. 03:15.520 --> 03:17.530 So I'm going to select the control curve first. 03:17.830 --> 03:24.460 And before actually before I do that, I want to zero this out before we went to modify for these transformations. 03:24.700 --> 03:29.590 Let's do that before we start making constraints as well, so that when we hit zero on everything, 03:29.590 --> 03:31.250 it'll get back to where we expect it to be. 03:31.690 --> 03:35.110 So with that selected, I'm going to actually just rename it real quick. 03:35.530 --> 03:43.570 So I'm going to say left foot gone and I'm going to constrain that group to that. 03:43.570 --> 03:45.970 So I'm going to parent to it parent constrained. 03:45.970 --> 03:50.740 So when we rotate this, it will rotate with the control and it will move with it. 03:50.950 --> 03:51.340 Cool. 03:51.640 --> 03:57.970 So now we need to hook up through set driven keys the rotation of these joints so that we can have all 03:57.970 --> 03:58.990 of these different pivots. 03:59.410 --> 04:01.600 And so we have essentially three different pivots. 04:01.600 --> 04:06.760 We have the heel pivot, we have the toe pivot and we have the ball pivot. 04:07.240 --> 04:12.310 But I want to create a control that controls all of these from one. 04:12.670 --> 04:17.770 So let's go click on the controller and let's go to edit add attribute. 04:18.100 --> 04:20.830 We get a new menu and we can give it a name. 04:22.750 --> 04:24.040 Let's call it foot roll. 04:27.190 --> 04:31.840 And we want it to be a float because it's going to be a number and there's no minimum maximum. 04:31.870 --> 04:33.250 Right now, we can change all that later. 04:33.820 --> 04:36.730 OK, so now you can see we actually have a new value here. 04:36.940 --> 04:37.680 Middle mouse, drag it. 04:37.720 --> 04:39.290 Nothing happens because we need to hook it up. 04:39.910 --> 04:41.200 So let's go to edit. 04:42.930 --> 04:44.100 Set driven key. 04:45.300 --> 04:51.060 So now we get another new menu, so the driver is going to be this controller, so we need to load this 04:51.060 --> 04:52.050 as the driver right now. 04:52.050 --> 04:53.940 It's the driven and that's wrong. 04:53.950 --> 04:55.040 We want it to be the driver. 04:55.050 --> 04:57.400 So let's say load driver, OK? 04:57.420 --> 05:01.560 And let's select the actual attribute, because we need to select which one we're saying is the driver 05:01.560 --> 05:10.080 of this object here and now we can select the heel and we need to add that as the driven and we want 05:10.110 --> 05:13.110 the let's see which axes we're talking about. 05:13.110 --> 05:13.960 It looks like the Z. 05:14.100 --> 05:15.270 So we want the Z axis. 05:15.270 --> 05:16.890 We can see it changing over here. 05:17.610 --> 05:19.340 So let's say rotate Z. 05:19.740 --> 05:28.680 And right now with the foot roll at zero and the rotate Z at zero, we want to set a key select set 05:28.710 --> 05:29.020 of key. 05:29.790 --> 05:36.630 Now let's change the value of the foot roll to be something in the negative. 05:37.380 --> 05:45.870 So let's go maybe 90 or let's go maybe 60 and well, let's just go to 90. 05:45.870 --> 05:48.470 Let's go do something further than what we're going to need it to be. 05:49.050 --> 05:50.070 So let's go to ninety. 05:50.340 --> 05:54.540 And then under rotate Z we can actually double click this and get back to the joint or we can selected 05:54.540 --> 06:01.830 there and we can change this to be rotate 90. 06:04.370 --> 06:11.450 So it's way beyond what we'll ever need, and now it's Seddiqui, so what do we just do if we go back 06:11.450 --> 06:14.450 to the foot roll and we middle mouse drag this? 06:14.450 --> 06:20.920 Now, we actually have mapped the rotation of that joint to a new attribute and our controller. 06:21.650 --> 06:29.180 But if you notice, this kind of slows down when we're at the either end, and that's because the tangents 06:29.180 --> 06:31.910 are kind of beziers blind. 06:32.300 --> 06:37.570 So let's open that up and take a look at what's actually happening in the animation of this connection. 06:37.910 --> 06:42.320 So I'll go to the graph editor and let's go to the left heel. 06:44.130 --> 06:49.860 Which actually has the animation and you can see, in fact, it is slowing down at the beginning and 06:49.860 --> 06:55.540 at the end, let's select both of these key frames and go do a linear interpolation. 06:55.830 --> 07:01.970 So now when we select the con and we do a foot roll, it's going to be a straight interpolation. 07:01.980 --> 07:03.870 It's not going to try to slow down at either end. 07:04.320 --> 07:04.680 Cool. 07:05.040 --> 07:08.720 So now let's do the same thing for the ball and the toe rotation. 07:09.300 --> 07:15.720 So I'm going to load in these joints as the driven. 07:16.180 --> 07:17.610 So we've already got the heel done. 07:17.640 --> 07:19.650 Let's load the driven of the left ball. 07:21.330 --> 07:23.370 Let's make sure that the foot roll is at zero. 07:24.060 --> 07:29.560 And let's a want to make sure, too, that we're working on the right axes of this joint. 07:29.580 --> 07:33.730 So again, it's going to be rotate Z, let's select, rotate and inadequate. 07:34.110 --> 07:35.620 So now we have a zero position. 07:36.120 --> 07:45.300 Now let's go back to the foot roll and let's increase this to maybe 45, I believe. 07:45.660 --> 07:46.380 I guess negative. 07:46.380 --> 07:47.100 Forty five. 07:48.570 --> 07:54.880 And then let's go to the joint here and let's do the same thing here. 07:54.900 --> 07:55.950 Let's go 45 07:58.680 --> 07:59.340 and looks. 07:59.640 --> 08:03.480 Let's take a look at that, because what we're going to make, we're going to build in the kind of heel 08:03.480 --> 08:04.140 to tell action. 08:04.140 --> 08:05.260 I think that's too much. 08:05.550 --> 08:10.070 I think we actually want it to be something like maybe thirty, let's say, with that selected, let's 08:10.080 --> 08:10.800 choose 30. 08:11.820 --> 08:15.780 And I think that's probably closer to what we would expect a foot roll to be. 08:16.090 --> 08:26.880 So let's go to the Khan and let's change that to negative thirty and it change the the left ball because 08:26.880 --> 08:28.440 it's thinking it's trying to follow that. 08:28.440 --> 08:31.320 So we just need to get that back to thirty and now. 08:32.640 --> 08:40.080 So now when we get a foot roll and we go back and forth, we can see that we go from a heel to it to 08:40.080 --> 08:43.080 a flat foot to now the the ball of the foot starts lifting. 08:43.080 --> 08:43.290 Right. 08:43.290 --> 08:44.880 The heel starts lifting up this way. 08:44.910 --> 08:47.100 So we have this type of motion. 08:47.430 --> 08:50.070 So now it gets to thirty, it stops. 08:50.610 --> 08:53.370 So let's go to thirty or negative thirty. 08:54.600 --> 08:56.610 And you can you could do this in negative or positive. 08:56.610 --> 08:58.110 It doesn't really matter which way you do it. 08:58.110 --> 08:59.490 It's just whatever you prefer. 09:00.150 --> 09:05.430 I just chose I guess, you know, this is positive for me and the heel touch down there. 09:05.880 --> 09:14.460 So let's let's go to negative thirty and the foot roll and then let's add in the toe for the driven 09:14.490 --> 09:14.790 here. 09:15.690 --> 09:19.200 So let's set a key on let's make sure to rotate Z again. 09:19.230 --> 09:19.710 It is. 09:19.890 --> 09:25.110 Let's choose the rotate Z and with the foot roll at negative thirty let's add a key. 09:25.140 --> 09:31.710 Basically what we're saying is we want the toe to pick up where the ball the foot leaves off, OK? 09:32.280 --> 09:37.350 And now that we have that, we can rotate this. 09:37.380 --> 09:40.950 Let's see, let's see what we want it to go to, because I think probably 90 is too much. 09:42.240 --> 09:43.340 Let's do something. 09:44.010 --> 09:45.480 I mean, I guess we could do ninety. 09:45.740 --> 09:49.290 Let's just do ninety because I'm kind of like the heel. 09:49.290 --> 09:52.650 We will never do ninety, but it's nice to have, like, the extremes. 09:53.280 --> 09:54.540 So let's go negative ninety. 09:56.520 --> 10:02.990 And with that we can rotate this up ninety and we can key. 10:04.080 --> 10:10.560 Now the other thing we need to do is to also set a key for the ball, the foot, because we don't want 10:10.560 --> 10:11.970 it, we want it to straighten out here. 10:11.970 --> 10:14.250 We don't want it to continue to stay at this angle. 10:14.520 --> 10:18.930 So let's load back in the ball and go to Z in zero that out. 10:22.030 --> 10:24.160 And now we can seddiqui for that. 10:25.460 --> 10:28.070 And what we get. 10:30.810 --> 10:33.720 Is a foot roll from the heel? 10:36.580 --> 10:37.420 To the TEL. 10:39.430 --> 10:40.110 Check that out. 10:41.720 --> 10:46.090 And it's all in one control, we don't have to, you know. 10:47.260 --> 10:49.210 Animate three different joints. 10:49.240 --> 10:51.880 We get that all in one control, I'm just sliding this around. 10:53.230 --> 10:59.530 We just need to fix the animation of these joints because they're also a kind of smooth transition. 10:59.530 --> 11:00.910 So let's go back to the animation. 11:00.910 --> 11:01.870 Ed Graf Ed. 11:04.360 --> 11:06.970 Let's look up this control here. 11:07.510 --> 11:08.630 Let's just make that linear. 11:08.710 --> 11:10.360 Let's do the same thing for the ball of the foot. 11:11.920 --> 11:12.850 We'll make that linear. 11:13.750 --> 11:19.970 And now for this attribute on the curve, let's make the positive the min max niños. 11:20.010 --> 11:21.340 So let's go edit. 11:22.800 --> 11:31.530 Let's go to edit, edit attribute, and we can select the attribute and say has a minimum and has maximum, 11:31.860 --> 11:36.420 the minimum is going to be negative 90 and the maximum positive is going to be 90. 11:36.960 --> 11:41.180 So let's say close and now it won't let us go past those values. 11:41.760 --> 11:43.800 So now it'll go to 90 and stop. 11:47.230 --> 11:52.810 Great, so let's do this reverse foot rig setup for the other side and then let's finish out the foot 11:52.810 --> 11:55.600 rig and create a separate control just for the toe. 11:56.040 --> 11:57.040 I'll see you the next lesson. 11:57.100 --> 11:57.790 Thanks for watching.