WEBVTT 00:00.270 --> 00:03.480 Welcome to constraining bones movement. 00:03.480 --> 00:09.540 So in this video you'll be able to lock movement to a single axis if that's necessary and you're going 00:09.540 --> 00:13.990 to be able to constrain the degree of movement that is possible. 00:14.280 --> 00:16.940 So let's hop straight on over into a blender. 00:18.210 --> 00:24.190 Okay so the first thing we want to do is let's work on this bottom bone here. 00:24.240 --> 00:30.680 So the moment when we try and rotate it obviously we can rotate it manually and limit its the Z levels 00:30.780 --> 00:33.200 access and that spin round like that. 00:33.330 --> 00:35.920 That's kind of the movement we want to constrain it too. 00:36.270 --> 00:43.370 So looking over here at the transform properties on the property shelf over on the right hand side if 00:43.380 --> 00:48.240 it's not enabled press N and bring it in we can click the little plus up there. 00:48.360 --> 00:53.370 So once that's open we can literally put a padlock against the axes. 00:53.370 --> 00:55.890 We want to lock. 00:56.190 --> 01:00.350 Now this is also available in the Bowen properties over here. 01:00.630 --> 01:06.230 We have a series of transform locks just here it's just hidden at the moment. 01:06.420 --> 01:12.070 And we've got the same padlocks here so we turn lights on turns on here and vice versa. 01:12.590 --> 01:12.960 Brilliant. 01:12.960 --> 01:17.280 So let's turn on some and see what happens so we got the z axis here. 01:17.280 --> 01:17.790 Yes. 01:17.790 --> 01:20.520 So we'll leave that one unlocked and lock the other two. 01:20.880 --> 01:22.940 Let's try rotating and see what happens. 01:23.100 --> 01:24.020 Okay. 01:24.450 --> 01:31.690 So that is not locked on what I would think would have been said access sons cannot undo that. 01:31.710 --> 01:37.800 Now going to go to the armature and turn on axes under the display options. 01:38.060 --> 01:45.990 And if we look at the top of this bohren It doesn't see Z as upwards it sees why is upwards so great. 01:46.000 --> 01:51.750 There's a good use of having the axes on because we can see how it's applying in this case we unlock 01:51.780 --> 01:54.400 the Y and lock the Z. 01:54.420 --> 01:56.320 Now let's just try him the Arky. 01:56.340 --> 01:56.760 There we go. 01:56.760 --> 01:57.840 It's completely locked. 01:57.840 --> 02:00.010 It's not wobbling about a place. 02:00.390 --> 02:00.950 OK guys. 02:00.960 --> 02:02.660 A micro challenge for you. 02:02.660 --> 02:06.320 So there will be more to this with you after this slide. 02:06.510 --> 02:10.980 So lock the axis of the lobar arm bone. 02:11.970 --> 02:13.940 Supposedly an out and give that a go. 02:16.990 --> 02:17.730 Welcome back. 02:17.800 --> 02:22.970 Let's hop back into blender and just lock the axis of the lower arm bone right. 02:22.990 --> 02:28.870 Let's select this bone here and we're looking at but that we've got the axes on it's the x axis that 02:28.870 --> 02:32.770 we need to leave open so let's do Y and Z. 02:32.770 --> 02:33.250 Excellent. 02:33.250 --> 02:35.650 Now let's try and rotate it. 02:35.680 --> 02:36.130 Excellent. 02:36.130 --> 02:38.780 It's going round and round and round and round. 02:38.790 --> 02:39.240 Excellent. 02:39.310 --> 02:42.620 It's not disappearing and wandering about. 02:42.850 --> 02:49.030 So now that we've locked the axes on here what we don't want to do is this want to pass all the way 02:49.030 --> 02:52.920 through the base so we need to constrain the movement of that bone. 02:53.260 --> 02:58.570 Oh and by the way I just thought this may have been a reason why the mirror modifier was being all crazy 02:58.770 --> 03:05.530 at the mirror access's of course moving away and when it was a free movement and not a lot movement 03:05.770 --> 03:07.640 it wouldn't be in the centre of this long. 03:07.650 --> 03:10.320 So that's possibly what was causing that artefact earlier. 03:10.720 --> 03:10.990 Right. 03:10.990 --> 03:13.390 So let's constrain this movement. 03:13.390 --> 03:17.830 So we need to constrain that a long it's x x-axis. 03:17.830 --> 03:21.790 Now there is a chain icon over in the Properties window for constraints. 03:21.790 --> 03:26.260 But fortunately if we click on that says go to the bone constraints tab and there's a button there. 03:26.360 --> 03:31.870 It's this one over here so I just pull this out a little so next to what looks like a textured tab. 03:31.870 --> 03:37.300 There's the bone constraints and there's a big long list in these constraints and we want to limit its 03:37.300 --> 03:38.320 rotation. 03:38.770 --> 03:44.860 Now something that's very important is getting a the right axis in it we know it's the x axis in this 03:44.860 --> 03:50.370 point so we're going to limit it on X and with the minimum and maximum as zero. 03:50.380 --> 03:55.420 When we try and rotate it nothing will happen so it's actually now locked in place. 03:55.600 --> 04:02.650 Now in general what I would do here is I'd set the minimum as minus 80 and the maximum as one 80 to 04:02.650 --> 04:05.160 help you alleviate the problems. 04:05.220 --> 04:08.000 And now it should spin freely round and round. 04:08.250 --> 04:10.720 Well we need to work out what the minimum would be. 04:10.720 --> 04:12.200 Now I've been playing about with this. 04:12.220 --> 04:16.660 I'm going to fake around minus 30. 04:16.780 --> 04:18.270 So let's just try rotating again. 04:18.280 --> 04:21.050 Yes it locks in place there it won't go any lower. 04:21.220 --> 04:25.400 But what I did notice as I was move from rallis getting this horrible snapping effect. 04:25.450 --> 04:31.540 Now the reason that is happening basically is because it is using the world space. 04:31.540 --> 04:34.750 If I change that to a local space. 04:35.080 --> 04:38.440 Now when I rotate it it will be much smoother. 04:38.440 --> 04:40.890 But these change. 04:40.990 --> 04:48.190 So now I think it's at minus 80 or thereabouts you can play with fingers to your heart's content and 04:48.280 --> 04:52.480 the set the maximum here I'm not going to have it go all the way round I'm going to have it. 04:53.140 --> 04:55.200 I think around 130. 04:55.190 --> 05:00.000 Let's just try and rotate it to all the way around here and stops about there. 05:00.070 --> 05:04.820 That's absolutely fine if it goes much further than that lampl starts looking a bit silly. 05:05.020 --> 05:10.420 Obviously if you go over the side it will flip back round the other way and start rotating round again. 05:10.970 --> 05:11.600 OK. 05:11.620 --> 05:12.510 Brilliant. 05:12.820 --> 05:13.450 Okay guys. 05:13.450 --> 05:19.900 The second challenge of this lecture is a bit of a big one I'd like you to build the upper arm and create 05:19.990 --> 05:23.890 a bone make the upper arm a child of that bone. 05:23.890 --> 05:28.270 Lock it into the appropriate axis constrain its movement. 05:28.270 --> 05:35.110 Now it's up to you how much you constrain it by and remember to name your meshes and bones. 05:35.110 --> 05:37.690 Pause the video now and give that a go. 05:37.690 --> 05:38.580 Welcome back. 05:38.830 --> 05:41.440 Let's hop straight on over into blender. 05:41.890 --> 05:47.470 Right so let's go ahead and create the rest of this space clap I'm going to hop into edit mode as that's 05:47.470 --> 05:55.180 the best place to work on our model now our topic here I'm going to simply make it the same width as 05:55.250 --> 05:58.810 whatever that is there or almost that width. 05:58.810 --> 06:01.790 So let's place the three cursor somewhere around there. 06:01.790 --> 06:07.880 I know because we're on the x y we created it literally from the centre of our model. 06:07.990 --> 06:14.990 We can literally go down here find our 3-d cursor and set the x y positions to. 06:16.260 --> 06:16.820 Zero. 06:16.830 --> 06:18.530 And let's just see where that ends up. 06:18.540 --> 06:19.950 Nowhere near our model. 06:19.950 --> 06:20.680 Great. 06:20.830 --> 06:24.040 Actually the y position we don't want to be zero and nor the Z. 06:24.060 --> 06:26.430 We just want the X to be zero. 06:26.550 --> 06:33.330 So let's just try that again and create x 0 and it's bang in the middle that's close enough for me and 06:33.330 --> 06:35.900 I'm going to create a small cube there. 06:35.910 --> 06:43.020 Of course I don't want to be in edit mode of our armature here so let's hop out of there and I'm going 06:43.020 --> 06:49.640 to reset our pose in object mode create ourselves a mesh that's a cube. 06:49.770 --> 06:53.190 And I'm just simply going to scale it down quite a bit. 06:59.800 --> 07:01.810 Oh that was remarkable. 07:01.810 --> 07:03.770 I've actually made it exactly what I wanted. 07:03.850 --> 07:04.420 Right. 07:04.480 --> 07:05.590 So I'm going to rotate. 07:05.610 --> 07:13.090 That's that was far more luck than anything else by 45 and I'm going to grab this bit here this face 07:13.090 --> 07:16.770 here and a minute she just gonna move it. 07:16.840 --> 07:20.590 And I'm going to lock it to local Y. 07:20.620 --> 07:20.910 Yeah. 07:20.920 --> 07:22.310 Okay that's good. 07:22.420 --> 07:26.160 That's for view that from the side see how it looks. 07:26.290 --> 07:31.830 Actually I quite like that there that's I think these are coming just ever so slightly out there. 07:33.710 --> 07:34.310 Perfect. 07:34.470 --> 07:41.440 Okay so we've got that there so let's hop over to our armature and select it in the outliner here. 07:41.450 --> 07:42.580 Lamp rag. 07:43.720 --> 07:45.670 Click on this one here and extrude. 07:45.880 --> 07:52.960 I do want that locked so x axis shift and X and I don't know if I've placed that in the right place. 07:52.960 --> 07:57.550 I'm going to shift around to the side doesn't matter which side zoomed in and again at this point in 07:57.550 --> 08:00.010 time I can just adjust it roughly. 08:00.460 --> 08:01.020 Okay. 08:01.030 --> 08:04.560 Let's hop into Poe's mode and then back into edit mode. 08:05.710 --> 08:09.430 Suppose mode stop into Poe's mode. 08:09.720 --> 08:15.380 Click on here click on click on our mesh objects which you have not named yet. 08:15.390 --> 08:23.300 And I must do that and our bone and control P and sets the parents to the bone. 08:23.370 --> 08:25.770 Let's name cube up. 08:27.190 --> 08:28.860 CAPS LOCK ON A must have hit that earlier. 08:28.880 --> 08:30.880 Upper arm. 08:31.130 --> 08:33.270 And let's also name our bone. 08:35.610 --> 08:36.750 Or arms to receive one. 08:36.760 --> 08:37.170 Nope. 08:37.230 --> 08:39.060 It's upper arm I'm afraid. 08:39.060 --> 08:40.210 Good guess though. 08:41.240 --> 08:42.820 Right so you've got the bone named. 08:42.840 --> 08:43.190 Ah. 08:43.190 --> 08:46.310 Scroll down deform we need to turn deform off. 08:46.310 --> 08:47.480 Have I done that with this one. 08:47.480 --> 08:48.650 No I haven't. 08:48.650 --> 08:53.710 Whoops forgot about that earlier we don't want the meche deforming right so now we've got that linked 08:53.720 --> 08:56.380 him we just need to constrain its movement. 08:56.540 --> 08:59.130 So I believe it also be the x axis. 08:59.130 --> 09:08.770 TS So let's go up here with this bone selected only allow it to move round the x axis and in the constraints. 09:09.870 --> 09:13.920 Let's limit rotation local space and limits. 09:13.950 --> 09:15.110 X again. 09:15.120 --> 09:18.690 Now let's just grab that and see what that looks like it's zero position. 09:18.690 --> 09:19.810 Great. 09:20.270 --> 09:25.080 So probably 45 down and 130 up or something. 09:25.080 --> 09:26.870 So a minimum let's say. 09:26.910 --> 09:28.200 I don't know which way this is going to go. 09:28.200 --> 09:36.960 Some just going to go minus 30 and plus 90 and to see how far it moves so that's in 90. 09:37.030 --> 09:40.320 Yep and that's if 30 perfect. 09:40.390 --> 09:43.790 And of course we can add more detail to all of this later on. 09:43.790 --> 09:46.820 I just want to keep it nice and simple to demonstrate armatures. 09:46.830 --> 09:56.510 I'm just going to increase that ever so slightly to 120 and try minus 45 then to see what it looks like 09:56.520 --> 09:58.710 from the side. 09:58.710 --> 10:02.460 Hey that's rotate that it goes back to there and forward to here. 10:02.450 --> 10:09.390 Essence that's not not going too far and not pushing through anything else excellence. 10:09.390 --> 10:16.470 Now we should be able to rotate things around and everything moves all together. 10:16.470 --> 10:17.550 I take that one round. 10:17.550 --> 10:18.880 Perfect and move. 10:18.900 --> 10:19.660 This one here. 10:19.680 --> 10:20.440 Excellent. 10:20.520 --> 10:24.870 And of course I'm just going to reset what I've just moved so it goes back to the rest position so we 10:24.870 --> 10:27.780 can continue modelling later on. 10:27.780 --> 10:28.270 Great. 10:28.350 --> 10:29.610 How are you guys getting on. 10:29.610 --> 10:31.500 I'd love to see your lamp at the moment. 10:31.500 --> 10:35.840 Perhaps you've added more a bit more detail than I have in these short sessions we've got. 10:35.940 --> 10:39.960 Please share in the discussions and I will see you in the next lecture.