WEBVTT 00:00.680 --> 00:04.190 Welcome to the boolean modifier in this video. 00:04.190 --> 00:08.530 We're going to experiment with a boolean modifier understanding how it works. 00:08.540 --> 00:15.230 We're going to understand how to apply it to our model learn that it can be used constructively and 00:15.260 --> 00:17.000 destructively. 00:17.000 --> 00:20.300 It can and will work in edit mode if you choose. 00:20.420 --> 00:23.570 And also is real time and alive which is exciting. 00:23.570 --> 00:25.430 Not all modifiers are. 00:25.730 --> 00:27.920 So let's hop over straight into blender. 00:28.220 --> 00:32.440 Hello everybody and welcome to this lecture on the boolean operator. 00:32.450 --> 00:36.540 And we're going to talk specifically about the boolean modifier in this case. 00:36.560 --> 00:41.330 There are a couple of things we need to do a bit of housekeeping to make sure that the boolean modifier 00:41.630 --> 00:43.670 works as we expect it to. 00:43.850 --> 00:49.280 If you forget these two items you will end up at some point scratching your head wondering what has 00:49.280 --> 00:50.350 gone on. 00:50.360 --> 00:57.230 So firstly let's just hide the properties panel and the tall shelf and have a look at our lovely bishop 00:57.230 --> 00:58.470 and how it's coming together. 00:58.580 --> 01:02.950 Okay so the first thing that we need to look for is any inverted Normal's. 01:03.020 --> 01:07.640 So in order to make sure we've got that all sorted I'm going to hop into edit mode select all of my 01:07.640 --> 01:13.730 mesh and go control and n never had tall shelf still open we can see that the operator panel make normal 01:13.790 --> 01:14.930 consistent. 01:14.990 --> 01:15.790 There we go. 01:15.800 --> 01:21.490 Now we didn't have any normal flips going on there but if you did that should have fixed those. 01:21.500 --> 01:27.110 The next thing to do is whilst you're in object mode we can see that there is a scale applied to our 01:27.110 --> 01:28.040 model. 01:28.040 --> 01:32.690 Fair enough we scaled a top in order to make sure that the boolean operators going to work as we would 01:32.690 --> 01:33.650 expect it to. 01:33.740 --> 01:37.760 I'm going to go to object apply and apply that scale. 01:37.760 --> 01:38.690 Right there we go. 01:38.690 --> 01:46.050 I'm really happy with how that is all set up now and I'm ready and happy to add in the bouley a modifier. 01:46.100 --> 01:47.000 So go ahead and do that. 01:47.000 --> 01:53.210 Let's go ahead to the modifiers tab add a modifier and go to a Boolean which is on the Generate were 01:53.210 --> 01:56.910 generating new geometry and boolean. 01:57.040 --> 02:02.390 We can see once this opens up it's got a series of operations intersect Union and difference. 02:02.390 --> 02:03.930 We'll see what those two in a moment. 02:03.930 --> 02:09.860 And it's got an option for selecting another object so I'm going to need something for it to have a 02:09.860 --> 02:10.870 difference with too. 02:10.880 --> 02:14.320 It's a unified two or it intersects with. 02:14.330 --> 02:15.880 Let's go ahead and do that. 02:15.890 --> 02:21.140 Now I'm going to turn off snapping before I do anything else and then place my thrilly cursor over here 02:21.440 --> 02:22.840 and add in a new mesh. 02:22.850 --> 02:26.960 It doesn't really matter what we add in I'm going to add in an eco sphere because it's this kind of 02:26.960 --> 02:27.600 cool. 02:27.830 --> 02:29.390 Now for this to really work. 02:29.390 --> 02:35.110 We need these two models to intersect one another so let's just put them close enough together that 02:35.120 --> 02:39.520 they eat into one and have an enormous scale that one up ever so slightly and push out. 02:39.540 --> 02:42.580 It's just cheap taking a chunk out of our model. 02:42.680 --> 02:43.740 There we go. 02:44.240 --> 02:51.380 Okay let's go back to our low poly bishop and under the object and the boolean modifier select the IKO 02:51.370 --> 02:53.990 sphere rule when it's disappeared straight away. 02:53.990 --> 02:56.010 This is what I mean by it's interactive. 02:56.060 --> 02:57.570 It has changed itself. 02:57.580 --> 03:02.180 And as we can see if we move our model it's changing what's going on. 03:02.180 --> 03:04.950 If we go to wireframe mode we can see that even more. 03:04.970 --> 03:09.820 I'm lifting the low poly Bishop up and down and we can see the base of it there. 03:10.150 --> 03:15.920 So what it is doing at this point is it's intersecting the low polybe ship with the Ika sphere and it's 03:15.920 --> 03:24.830 keeping the low poly bishop any part of the load poly bishop that intersects with this sphere and if 03:24.830 --> 03:31.490 we were to go ahead and apply that and have a look after hiding the eicas sphere we can see that this 03:31.490 --> 03:34.490 is a chunk of the bottom of that model. 03:34.490 --> 03:38.780 And on this side it's going to look like an outer spear because that's that's that's the the where it 03:38.780 --> 03:41.860 was terminated where it had been cut off before. 03:42.230 --> 03:44.680 Now before we go any further. 03:44.720 --> 03:50.440 One thing to mention whenever you use the boolean modifier is is very messy. 03:50.540 --> 03:53.180 It will destroy a nice apology. 03:53.180 --> 03:58.850 So whereas we had edged loops running up and down our model before and face loops for that matter they're 03:58.850 --> 04:04.460 now pretty much destroyed where ever this is intersected now there is going to be one I think just here 04:04.810 --> 04:07.870 when we go we've got a face loop that extends three faces. 04:07.880 --> 04:13.460 So what that really means is going to be much more difficult to modify your geometry if you've gone 04:13.460 --> 04:18.680 ahead and destroyed it like that and we'll cover read topology later on in the course where it comes 04:18.680 --> 04:26.360 to taking the mess you got in front of us here and making it better in terms of animation and for editing 04:26.360 --> 04:27.780 later on. 04:27.800 --> 04:31.290 Now I'm going to undo a couple of steps here until it all comes back. 04:31.310 --> 04:31.760 Excellent. 04:31.760 --> 04:38.450 And I'm going to unhide the like asrar again and labrie my bishop back down to about here and let's 04:38.450 --> 04:43.720 have a look at the other options so boolean objects intersecting with the IKEA sphere. 04:43.850 --> 04:45.560 Well soak it so it's intersecting. 04:45.560 --> 04:46.280 We know what that does. 04:46.280 --> 04:48.400 Now what about Union. 04:48.710 --> 04:54.760 Okay so we can see both of our models here and the sphere itself has this horrible hashing over it. 04:54.770 --> 05:00.060 Now if you ever see this horrible hashing of a mesh object going on that's called. 05:00.180 --> 05:01.520 Said fighting. 05:01.520 --> 05:06.740 Basically there are two objects on top of one another and blender literally does not know which one 05:06.740 --> 05:07.730 to display. 05:07.730 --> 05:12.640 So it kind of displays a mess of both of them and you can end up with some horrible rendering artefacts 05:12.650 --> 05:14.110 if we go into rendering mode here. 05:14.120 --> 05:14.380 Yes. 05:14.390 --> 05:21.530 Look at this absolutely horrible in terms of what's going on there that doesn't look like a decent surface. 05:21.530 --> 05:27.200 However if we go ahead and hide our ecosphere it's nice and clean again if we hide hid our Ike. 05:27.280 --> 05:31.580 Our probably Bishop It would also be nice and clean but the two together because they're exactly the 05:31.580 --> 05:35.900 same they're intersecting with one another and causing this horrible geometry. 05:35.900 --> 05:42.650 However if we have a look at the wireframe mode we can see that whilst it's all together we've now got 05:42.650 --> 05:48.490 a chunk being taken out of ah ah or what looks like a chunk being taken out of our bishop. 05:48.500 --> 05:53.810 But it's not if we go ahead and hide our low poly Bisha OK sorry if we go ahead and hide our ecosphere 05:54.110 --> 05:55.230 we can see what's happened. 05:55.260 --> 06:01.430 There is these two mesh objects have been joined together perfectly and we go into solid mode and not 06:01.430 --> 06:06.880 rendered mode but solid mode and then we see that it has joined them together perfectly. 06:07.040 --> 06:14.210 And it's one mesh object one continuous mesh object so if we were to go in and apply vats and go into 06:14.240 --> 06:19.820 edit mode we grab this vertex here we can see it's manipulating the surface of that face. 06:19.820 --> 06:27.200 Now once again it has destroyed our geometry whereas we did have some face loops going up and down and 06:27.200 --> 06:29.710 we had them going round while they still do go round. 06:29.720 --> 06:34.700 But they dont continue round our our ecosphere in this case. 06:34.700 --> 06:39.790 And again thats not useful for this notch that we want to put in the top. 06:39.800 --> 06:42.380 But it is useful when youre joining things together. 06:42.620 --> 06:46.240 So that of course we come back out and. 06:48.100 --> 06:50.290 Have a look at our boolean modifier again. 06:50.290 --> 06:53.630 That leaves one option left which is this difference and our ha. 06:53.650 --> 06:59.570 Weve taken a chunk out of it and because the eicas is hidden I can go ahead and select it and move it 06:59.580 --> 07:04.130 about if it was not hidden and take out different chunks of our model. 07:04.210 --> 07:04.980 There we go. 07:05.170 --> 07:09.700 So there's lots of options there lots of cool things you could see that potentially if you were to acclimate 07:09.700 --> 07:16.810 the movement of the Ika sphere and make it transparent in your scene or not render it and then have 07:16.810 --> 07:21.870 the low poly bishop there you could probably eat away at the surface of a model. 07:21.910 --> 07:26.530 Very exciting perhaps thats something you want to try later on in the course when we learn a bit more 07:26.530 --> 07:27.710 about animation. 07:28.000 --> 07:34.960 But that should give you all you need to do to go ahead and make the notch in the top of our bishop. 07:34.960 --> 07:37.020 So its time for a challenge. 07:38.020 --> 07:44.890 I would like you to cut a notch in the bishop so using an boolean modifier cut a notch from the bishop's 07:44.890 --> 07:45.930 hat in the top. 07:46.090 --> 07:50.830 If you need to have a look at reference material to make sure its placement is good then go ahead and 07:50.860 --> 07:51.910 do that. 07:52.630 --> 07:57.070 And before you get into the challenge just another reminder I did mention it earlier but I've seen so 07:57.070 --> 07:59.140 many people fall short on this. 07:59.140 --> 08:03.970 Remember you've got your Normal's to look out make sure they're outward facing and also make sure you 08:04.060 --> 08:05.750 have the scale of your model. 08:05.770 --> 08:10.690 If you don't do that you may have some interesting effects happening Paul's video now and give that 08:10.690 --> 08:11.330 a go. 08:12.960 --> 08:13.640 Okay guys. 08:13.680 --> 08:14.850 Welcome back. 08:14.850 --> 08:17.760 Let's go cut and notch in the bishop's hat. 08:18.150 --> 08:22.980 Okay so we need a notch rather than a big chunk of ecosphere taken out. 08:22.980 --> 08:27.900 So let's go ahead here and I'm going to delete my ecosphere from the scene all together. 08:28.110 --> 08:30.150 Making sure I can see it before I do that. 08:30.150 --> 08:34.470 And then it's just a matter of going ahead and giving this a new mesh object. 08:34.590 --> 08:40.350 Now I think at this point in time we're looking at let's look at it from the front to begin with. 08:40.380 --> 08:46.260 So we start setting things up as read expect so and I'm going to look at it in orthographic perspective. 08:46.770 --> 08:50.820 Okay so that looks like it's gone a bit funny. 08:50.820 --> 08:52.050 Looks like he's got really small. 08:52.050 --> 08:54.490 I swear I scaled that up before. 08:54.690 --> 08:58.900 So looks like I've made it much smaller than it should have been. 08:58.920 --> 08:59.630 Whoops. 09:01.320 --> 09:04.050 Okay well let's go ahead here and scale this up. 09:04.050 --> 09:06.170 By one point three three four three. 09:06.260 --> 09:06.860 Ah ha. 09:07.080 --> 09:11.840 Relative to the cursor at the bottom of its shift. 09:11.910 --> 09:15.310 An S cursor to centre. 09:15.360 --> 09:20.430 So then we can scale around that amazing the things you pick up as you're going through to scale by 09:20.430 --> 09:23.790 one point three three three three. 09:23.810 --> 09:24.460 There we go. 09:24.570 --> 09:25.900 Let's look at it from the front again. 09:25.920 --> 09:27.120 Yeah that's much better. 09:27.120 --> 09:34.770 So let's go ahead and apply that scale that's now done and dusted apart from it look like it was slightly 09:34.770 --> 09:36.790 above the floor as well. 09:36.840 --> 09:37.350 Did I. 09:37.360 --> 09:45.530 I think I must have saved the porn as a bishop before I got round to actually lowering that back to 09:45.540 --> 09:47.490 housing and I have to do that as well. 09:47.490 --> 09:48.330 Whoops. 09:48.330 --> 09:49.020 Whoops indeed. 09:49.040 --> 09:58.340 Okay so I know the value of this by selecting its face cursor to selected origin to the cursor. 09:59.100 --> 10:02.560 And then in the properties panel we can bring that back down to zero. 10:02.880 --> 10:04.050 Okay that looks good. 10:04.110 --> 10:07.880 And then I'm going to move the origin back to the geometry itself. 10:08.040 --> 10:12.930 Okay so let's have a look at that and we're going to have to scale this slightly with the pivot point 10:12.930 --> 10:16.670 being the 3D cursor on the z axis and there we go. 10:16.670 --> 10:19.620 And that's pretty much in that part all sorted out. 10:19.620 --> 10:22.160 There are some additional things we can modify there. 10:22.200 --> 10:27.170 So we've got a shape here and it comes down it's like a wedge but it's got a curve in it. 10:27.330 --> 10:34.110 So I think I'm going to move the 3D cursor up here and start with the cube and scale the cube in ever 10:34.110 --> 10:36.390 so slightly so that's roughly the right shape. 10:36.390 --> 10:44.250 Apply the scale on that Q and hop into edit mode and select this top face move background to the front. 10:44.250 --> 10:50.580 And I can just move it up in this case in roughly the right direction and I'm going to intersect all 10:50.580 --> 10:53.630 the parts all the bits of geometry of what I wanted to. 10:53.700 --> 10:55.770 I think it's going to be narrower at the bottom. 10:55.770 --> 11:03.250 In fact I'm going to add a loop going round this model so I can have it pointy at the very bottom. 11:03.360 --> 11:05.200 I'm not sure if this is going to work. 11:05.230 --> 11:10.900 Always always up for an experimentation and I'm going to move that edge down so it's pointy. 11:10.940 --> 11:14.080 Okay so that's the basic shape there. 11:14.100 --> 11:21.150 There's a few tweaks I need to do here this this face here can come in ever so slightly and that's pretty 11:21.150 --> 11:21.670 good. 11:21.690 --> 11:27.750 It needs to be extended this way so I'm going to select both of those faces and extrude through and 11:27.750 --> 11:32.790 the other thing to bear in mind is this model itself and look at it from the side now so the image won't 11:32.790 --> 11:38.940 be correct and we can see here that the notch itself goes sideways through our model with the bottom 11:38.940 --> 11:42.510 of its being at the front and the top being at the back. 11:42.510 --> 11:49.440 So I should be able to line this up if I select my entire mesh and then go for the pivot point here 11:50.310 --> 11:52.740 and select roughly around there. 11:52.740 --> 11:59.670 The middle point of this notch and then we rotate its wall and then probably have to shift it up as 11:59.700 --> 12:00.780 well. 12:00.840 --> 12:03.700 We can get it to roughly the right area. 12:04.760 --> 12:06.770 That looks good to me. 12:06.770 --> 12:12.230 The only thing I don't like at the moment is how much of this sphere at the top is being cut off. 12:12.230 --> 12:19.020 So no grab the edge here and push it in ever so slightly so as more of that sphere. 12:19.370 --> 12:23.210 And you know what I think I'm ready to do a cut. 12:23.430 --> 12:27.250 So back into object mode I'm going to select my bishop. 12:27.350 --> 12:30.030 So the object that is currently called Cube. 12:30.050 --> 12:31.350 I'm going to call it a notch. 12:31.370 --> 12:37.880 So we know what's going on and then make the notch a child of the bishop by clicking and dragging it 12:37.880 --> 12:39.470 up to low poly bishop. 12:39.590 --> 12:46.670 And that means if we move the bishop around the notch follows whiff and then we need to go ahead and 12:46.670 --> 12:50.990 selects that as ARM boolean operator has a difference. 12:51.080 --> 12:58.240 And then we can hide it from our scene and excellent book that has come across really well. 12:58.340 --> 13:04.820 Now I would quite like to have a bit more of a better kirven it's I can go back into my notch this is 13:04.820 --> 13:07.800 the great thing about a modifier This is why we use modifiers. 13:07.820 --> 13:14.390 It enables us to be creative and experiment without risk of damaging our model essentially suck and 13:14.420 --> 13:18.320 add another loop cuts in roughly there and one on the other side as well. 13:18.350 --> 13:25.520 And what that will enable me to do is grab the edge that runs down here and down here and whizz back 13:25.520 --> 13:32.540 around to the beginning and move and down slightly on the z axis to give it a more rounded appearance 13:32.600 --> 13:34.580 rather than it just jutting out. 13:34.610 --> 13:39.470 And again now we've done that we can remove the notch or hide the notch from our scene with the low 13:39.470 --> 13:45.980 poly bishop there we've got the notch in and there we go we have tab in an hour of edit mode that does 13:45.980 --> 13:50.770 happen sometimes that's a much better notch and it's not quite smooth on this side. 13:50.780 --> 13:56.600 Again now we're starting to get a bit picky and criticizing our own work but that's essentially the 13:56.600 --> 13:58.790 challenge done now. 13:58.940 --> 14:05.180 One final thing because I know someone's going to do this if we have a look at the outliner itself even 14:05.180 --> 14:06.900 though we've hidden it from view. 14:06.950 --> 14:13.460 If we go ahead and render an image to show with everybody and the camera is not in the right place. 14:13.470 --> 14:15.550 So let's go and sort that out. 14:15.680 --> 14:19.970 If we go ahead and render that what we'll find is that notch is still in the render So let's go back 14:19.970 --> 14:21.340 to the 3D view. 14:22.590 --> 14:29.520 Don't select the camera go to the view itself go to cameras and go to the active camera. 14:29.520 --> 14:32.490 We can see why that can't be seen at the moment. 14:32.490 --> 14:39.150 Now I'm going to use shift and F to go into first person mode to lift this upsets roughly in the right 14:39.150 --> 14:43.630 place you could of course move around for cameras propertys itself. 14:43.630 --> 14:47.900 And now we go to far off file and render render and render image. 14:47.910 --> 14:49.960 We see that notch is still in there. 14:50.100 --> 14:55.500 Now in order to make sure the notch is not rendered in the outline you need to turn off the camera icon 14:55.590 --> 14:56.610 as well. 14:56.610 --> 14:58.770 And then you go to render and render image. 14:58.770 --> 15:00.720 It's not in the scene. 15:00.780 --> 15:01.730 Brilliant. 15:01.750 --> 15:02.170 Okay. 15:02.190 --> 15:04.360 Well that's almost ready to share apart from. 15:04.370 --> 15:07.780 It's not got light on this side we can go ahead and add that later on. 15:07.870 --> 15:10.340 But I'm happy with how that turned out. 15:10.350 --> 15:17.100 Let's go into a 3D view and you know what the only thing that I want to fix is this back bit here and 15:17.100 --> 15:23.400 again I can show the notch again find the bits that I want to edit which will be this bit here in fact 15:23.430 --> 15:30.240 I could probably grab that Vertex and go Gee Z on that Vertex and just bring it down. 15:30.240 --> 15:36.750 So it's got more of a curve coming through in fact I could move in 3-d space here and not worry too 15:36.750 --> 15:39.560 much about everything else hide it again. 15:39.600 --> 15:41.710 Tab in and out of edit mode. 15:41.820 --> 15:43.130 And there we go. 15:43.590 --> 15:44.090 Excellent. 15:44.100 --> 15:45.570 That's all sorted. 15:45.570 --> 15:47.070 How are you guys getting on. 15:47.070 --> 15:48.600 What do your bishops look like. 15:48.600 --> 15:49.980 Did you go for this type of watch. 15:49.980 --> 15:51.360 Did you do something else. 15:51.390 --> 15:56.830 Looking forward to seeing your work over in the discussions and I'll see you all in the next lecture.