WEBVTT 00:02.510 --> 00:06.290 Hi and welcome to applying transforms. 00:06.740 --> 00:09.290 All is not how it seems. 00:09.320 --> 00:10.660 Intriguing hey. 00:10.850 --> 00:17.830 Well editing an object and transforming an object can look the same but underneath the properties are 00:17.840 --> 00:19.750 very very different. 00:19.850 --> 00:22.240 And we'll see this in action in a few moments. 00:22.490 --> 00:25.190 Transforms are not applied by default. 00:25.190 --> 00:31.910 We have to apply the manually and not applying these transforms can impact animation with your armatures 00:32.240 --> 00:37.400 particle systems physics bevelling and other modifiers as well. 00:37.400 --> 00:39.230 The list goes on and on. 00:39.320 --> 00:44.400 And a good rule of thumb is unless you have a very good reason to always apply your transforms. 00:45.120 --> 00:50.580 So in this video we're going to be looking at the same operations in both edit mode and object mode 00:50.610 --> 00:56.040 trying to grasp a difference between the two because conceptually it's quite difficult to get your head 00:56.040 --> 01:02.440 round and show you how to apply and even clear transformations that you've made. 01:02.580 --> 01:06.390 So let's go hop into a blender and explore transforms. 01:06.570 --> 01:09.280 Okay welcome back over into blender. 01:09.360 --> 01:13.600 So let's explore these transforms and what exactly they are you've already use them. 01:13.620 --> 01:20.270 But you might not have realized it so transforms are broken down into three main categories. 01:20.340 --> 01:24.020 Now we can actually see them down here on the three be head bar. 01:24.090 --> 01:29.120 We've got Translation We've got rotation. 01:30.090 --> 01:32.370 And we've got scale as well. 01:32.370 --> 01:38.220 Now I'm going to open up the properties panel of the 3D editor by pressing the N key and we can see 01:38.220 --> 01:44.250 that there's a section at the very top of this property panel we've got transport location rotation 01:44.310 --> 01:46.070 and scale. 01:46.080 --> 01:52.520 Now notice also we've got dimensions as well and we'll see how that is affected in a few moments. 01:52.800 --> 01:59.220 So we can change any of these by typing values into any of these fields but we can also use the modifier 01:59.220 --> 02:01.140 keys that we're accustomed to. 02:01.140 --> 02:04.810 S for scaling rotation. 02:05.070 --> 02:07.690 And of course after rotation n g. 02:07.800 --> 02:10.840 I like to call that grab to move things around. 02:10.860 --> 02:13.090 Now notice the little orange dot has moved. 02:13.090 --> 02:14.330 That's your origin. 02:14.340 --> 02:17.250 So now the object has a new location. 02:17.340 --> 02:19.930 It has a new rotation because we've moved it round. 02:19.950 --> 02:22.250 It also has a scale but wait a minute. 02:22.350 --> 02:29.070 That scale is negative which means that the object normals will actually be pointing inwards at the 02:29.070 --> 02:32.610 moment and we've got some dimensions here as well. 02:32.610 --> 02:36.100 Notice they now say eight point nine five five. 02:36.450 --> 02:37.030 Okay. 02:37.200 --> 02:42.360 Now that is purely linked to how it was originally when we scaled it. 02:42.420 --> 02:48.660 Nothing to do with how it is currently and we can prove that relatively straightforward with a bit of 02:49.170 --> 02:50.740 Pi faggots. 02:50.910 --> 02:53.380 So let's just delete our cube. 02:54.520 --> 02:58.690 And with the three cursor in the centre I'm going to add a new cube. 02:58.980 --> 03:01.950 That's better than just undoing all of those options. 03:01.970 --> 03:05.720 So we have our cube in the centre of our scene here. 03:05.720 --> 03:13.010 Now what happens if we look at it in detail and try and work out the diagonal distances so we can see 03:13.010 --> 03:15.070 what's happening here the dimensions. 03:15.110 --> 03:21.710 So as we can see here it's to blend the units across it occupies two of these grid spaces by two by 03:21.710 --> 03:25.450 two which is why we've got the dimensions two by two by two. 03:25.640 --> 03:32.930 And in scale we've got a scale of one now in object mode if we stay an object for a moment mode for 03:32.930 --> 03:43.730 a moment and rotate it around the z axis by 45 degrees so that the two corners are laying along Xome 03:43.790 --> 03:44.990 wine now. 03:45.440 --> 03:47.270 And let's also rotate it. 03:47.270 --> 03:54.680 I don't know by how much I'm going to go in to rotate mode and just move it around until it's roughly 03:54.680 --> 04:02.540 right it's and we will see we've now got a cube that's on the x direction is going to be a lot more 04:02.600 --> 04:06.890 than two across yet is still reading to him. 04:06.950 --> 04:08.170 So what's going on here. 04:08.180 --> 04:15.740 We can see he's got a rotation applied let's create a new mesh object so you shift and away and add 04:15.800 --> 04:20.040 in another cube so we can compare. 04:20.060 --> 04:25.770 Now I'm going to move this one across here so we're going to have a location on there of minus three. 04:25.790 --> 04:28.570 We will apply that location first of all. 04:28.640 --> 04:31.130 So we've got zeros throughout. 04:31.430 --> 04:35.250 So on the object menu we can see we've got apply. 04:35.600 --> 04:39.020 And then we can go up to location. 04:39.020 --> 04:44.110 Now notice that has moved the origin back to 0 0 0. 04:45.120 --> 04:49.900 That may not be ideal because the origin is used for lots of other things as well. 04:50.160 --> 04:52.230 But we'll play with it for a moment. 04:53.100 --> 04:58.120 With this new cube I'm going to do exactly the same operation I did with our other cube. 04:59.010 --> 05:05.160 So let's go into edit mode first of all because now we're editing the mesh data itself. 05:05.160 --> 05:11.020 Notice that it's location from the origin its average location because everything is selected. 05:11.190 --> 05:15.240 We can see it's minus three point zero six again in the transformer. 05:15.240 --> 05:17.090 Pierce there's another transform here. 05:17.220 --> 05:22.090 But we'll see what actually happens when we get to doing stuff with this cube. 05:22.230 --> 05:26.140 So let's do the same thing again so we are rotating on the z axis by 45. 05:26.310 --> 05:31.510 And I think it was a rotation on the wire by 35 or thereabouts gebel tank. 05:31.650 --> 05:35.580 Now this cueball vs cubes and then go back into object mode. 05:35.580 --> 05:44.140 Here we can see we've now got an X dimension of three point four six for every Do the maths. 05:44.140 --> 05:47.150 This cube here is two by two. 05:47.220 --> 05:54.790 So two squared plus two squared this diagonal across here across this face becomes route 8. 05:55.020 --> 05:57.110 That's just Pythagoras's. 05:57.150 --> 06:02.760 So we've got let's go to wireframe mowen with the Z key. 06:02.760 --> 06:09.460 This corner to this corner is made up of a side that is two in length here. 06:09.870 --> 06:13.620 And Route 8 here. 06:13.620 --> 06:17.960 So again that's eight Oh over here so we square roots eight. 06:17.970 --> 06:20.620 We get eight in every square two we get four. 06:20.670 --> 06:26.590 So this diagonal here following the z axis should be Route 12. 06:26.730 --> 06:33.480 And if you do the maths Route 12 is three point four six Okay and then the present to go back into solid 06:33.480 --> 06:34.380 mode. 06:36.110 --> 06:38.800 We selects this other cube with the right mouse button. 06:38.810 --> 06:41.080 See the dimensions haven't changed. 06:41.540 --> 06:43.160 Okay. 06:43.160 --> 06:50.030 So this is something to bear in mind that if you've actually played with your cube like this and haven't 06:50.030 --> 06:56.330 applied your relocation rotations scale you can end up with some very weird artefacts. 06:56.330 --> 07:00.880 Scaling does impact particle systems and the physics engine. 07:00.890 --> 07:03.730 And so there's rotation in fact a lot of the time. 07:03.740 --> 07:10.830 So do bear that in mind if you are operating in object mode doing all your scales and re sizing. 07:10.830 --> 07:15.930 Now in general I tend to do all of that when I'm editing a mesh object. 07:16.040 --> 07:21.280 I am in edit mode rather than object mode. 07:21.290 --> 07:27.070 Now let's go ahead and apply all of the transforms using the shortcut key we just learn which is control 07:27.230 --> 07:34.430 and a we get the menu up that we have before and when we click any of these let's say location here 07:34.970 --> 07:39.040 we can apply it's location that's already at 0 0 0 so that's fine. 07:39.200 --> 07:45.380 But in the operator panel in the lower left we can also apply the rotation and scale straight away and 07:45.380 --> 07:48.920 have a look that we can toggle these on and off whilst we're here. 07:48.920 --> 07:55.040 So we toggle the rotation on and off we see that the rotation flicks in the properties panel here from 07:55.040 --> 07:57.490 0 degrees to where we positioned it. 07:57.620 --> 08:02.410 But also the dimensions change to something more like it. 08:02.420 --> 08:06.770 So once we've done that that's it we can clear off and do whatever else we want to do. 08:06.770 --> 08:12.650 So if you scale something rotate something or indeed just move it. 08:12.650 --> 08:19.640 Notice here now we're rotating this cube because we moved it and then applied the location earlier. 08:19.640 --> 08:25.940 It's now rotating around its origin which is smack bang in the middle whereas this one when we rotate 08:25.940 --> 08:30.680 it is rotating around its origin still but in a completely different way so you can see the impacts 08:30.680 --> 08:34.750 of applying rotation relocation and scale. 08:35.180 --> 08:43.270 The final thing here and let's get rid of these two cubes and add a brand new cube a new cube. 08:43.310 --> 08:44.180 Excellent. 08:44.180 --> 08:45.870 So now the new cube is here. 08:46.010 --> 08:49.590 Let's play with doing everything we need to do. 08:49.620 --> 08:52.030 But this time only in edit mode. 08:52.100 --> 08:55.290 So we need to scale something by that much. 08:55.370 --> 08:56.840 Rotate it by this much. 08:56.840 --> 09:00.670 This is all arbitrary of course and move it over here. 09:00.770 --> 09:05.430 That's a completely different thing to doing it in object mode. 09:05.440 --> 09:08.310 It's very important to note those differences. 09:08.330 --> 09:16.580 Notice that our location our rotations scale are all While one zero and zero respectively but the dimensions 09:16.580 --> 09:17.390 have changed. 09:17.480 --> 09:25.040 Getting rid of that cube again if you do decide that your scale in rotation and your moving of an object 09:25.070 --> 09:33.410 i.e. transforming it if that's not good enough for you you can clear that rotation location and scale 09:34.170 --> 09:35.440 the short cuts. 09:35.450 --> 09:43.010 I'll go through in a moment but in the menu we can go to object clear and we can see here location rotation 09:43.010 --> 09:45.940 scale and we've also got origin as well and Oulton. 09:45.960 --> 09:52.190 Oh now it's strange that the other shortcut keys aren't actually listed here but we know that moving 09:52.700 --> 09:59.930 rotation and scale is location is geegaws we're moving it rotation are scale. 09:59.990 --> 10:01.270 S okay. 10:01.430 --> 10:07.560 So let's hold down oltz and at the same time press s There we go we've cleared the scale. 10:07.790 --> 10:11.420 If we go out g it will clear the transform. 10:11.420 --> 10:12.170 And if you do. 10:12.290 --> 10:12.620 Oh. 10:12.650 --> 10:15.640 And ah it will clear the rotation. 10:16.010 --> 10:18.700 So I said transform and then translate. 10:18.920 --> 10:19.430 Okay. 10:19.430 --> 10:26.330 So now we got our cube back in its default position so you can both apply and clear transforms. 10:26.330 --> 10:34.040 Now this will become very important later on especially in the animated lamp section and also in the 10:34.040 --> 10:35.810 fluffy bunny section. 10:35.810 --> 10:39.230 And when we get to physics much much later on in the course. 10:39.380 --> 10:41.240 So do take note of this. 10:41.240 --> 10:46.070 This is one of the key things that can go wrong when you're especially when you're animating of that 10:46.080 --> 10:48.290 early stage in the animated lamp. 10:48.290 --> 10:53.930 It can be really confusing because your model will blow apart on the fluffy bunny for instance. 10:53.930 --> 10:59.420 You'll end up with hair not looking right or looking too thin or too thick because it thinks it's a 10:59.420 --> 11:04.970 much smaller model than it is if we just scale this up blender still sees that as a two by two by two 11:04.970 --> 11:05.540 cube. 11:05.690 --> 11:12.590 Despite it being huge at the moment or almost a now almost a 10 by 10 by 10 cube think it's nine across. 11:12.590 --> 11:13.000 No. 11:13.290 --> 11:14.060 Yes. 11:14.220 --> 11:16.310 Yes almost 10 by 10 by 10 cube. 11:16.820 --> 11:22.770 But blend all see that as a two by two by two cubes so act completely differently. 11:23.000 --> 11:25.490 Okay so a quick summary before we finish off. 11:25.550 --> 11:32.360 When you're in object mode you are adjusting the object data itself you can transform it you can rotate 11:32.360 --> 11:35.210 it you can scale it etc. however you. 11:35.350 --> 11:41.930 Are not changing the underlying mesh but rather how the mesh is displayed essentially. 11:42.220 --> 11:47.890 If you are doing exactly the same thing but in edit mode you would actually be moving the mesh data 11:47.890 --> 11:53.020 around so you would be doing the equivalent of change in the real position of those vertices edges and 11:53.020 --> 11:54.040 faces. 11:54.040 --> 12:00.550 Now there are many situations where you don't want to touch the objects scale but rather go into edit 12:00.550 --> 12:02.880 mode and adjust the mesh data itself. 12:03.040 --> 12:08.060 A great example of this is physics simulations if you have not applied your transforms. 12:08.170 --> 12:10.120 Then things can go a bit haywire. 12:10.120 --> 12:14.270 It also affects things like particle systems and you will see later on. 12:14.350 --> 12:17.770 Some of you will make a mistake when we get to our fluffy bunny section. 12:17.770 --> 12:23.420 If you don't apply the scale of an object you will find that your hairs are not distributed how you 12:23.430 --> 12:24.730 think they would be. 12:24.910 --> 12:30.970 And you may of course ask why bother making any of these transforms whilst in object mode to begin with. 12:30.970 --> 12:33.980 Well it certainly speeds up your workflow if you can do that. 12:34.000 --> 12:39.920 Just remember the end to apply those transforms unless you've got a really good reason not to. 12:40.150 --> 12:41.160 Excellent well done. 12:41.170 --> 12:46.110 You've sat through this and hopefully your brain hasn't turned to noodle soup. 12:46.360 --> 12:50.620 Now there isn't a specific challenge with this particular lecture because this is something that's going 12:50.620 --> 12:57.660 to be with you through out the rest of your blender usage whether it's on this course or in your personal 12:57.660 --> 12:59.090 or professional life. 12:59.110 --> 13:02.920 So do remember if unless you've got a very good reason. 13:02.980 --> 13:07.460 Always apply your rotation your location and scale. 13:07.480 --> 13:13.510 Do be careful with the location however because it can move the origin so you may have to move the origin 13:13.510 --> 13:15.630 back to the object afterwards. 13:15.850 --> 13:19.220 But that said I will see you guys in the next lecture.