WEBVTT 00:00.180 --> 00:07.860 Welcome to Smart's Yuri Projekt in this video you'll understand some more about unwrapping by the end 00:07.860 --> 00:15.030 you'll be able to unwrap more complex models and realize that this is a great starting point for a lot 00:15.090 --> 00:20.920 of meshes and see that it gives a basic unwrap that we can work with straight away. 00:21.000 --> 00:27.000 And that is really important at this point in our modelling we don't want to spend ages doing any modelling 00:27.390 --> 00:30.550 until we know what we're going to end up with at the end. 00:30.600 --> 00:36.390 And we also don't spend ages unwrapping things because the moment we change our mesh we'll need to re 00:36.390 --> 00:38.960 unwrap and optimize anyway. 00:39.330 --> 00:42.670 So just a few points on why we need to unwrap. 00:42.780 --> 00:50.810 So a reminder here that a UV map is a projection of the 3D mesh to a 2D space so that often accompanies 00:50.820 --> 00:54.720 with a lot of distortion as well especially with all gammick models. 00:54.720 --> 00:58.850 And we'll work on optimizing those maps later on. 00:58.920 --> 01:06.210 Now whilst unwrapping is actually necessary in order to project an image onto a three dimensional surface 01:06.480 --> 01:10.940 we can let blend guess how to unwrap our model. 01:11.370 --> 01:18.210 Now unwrapping gives us control over how your model is mapped in to these space and obviously letting 01:18.220 --> 01:26.360 blender guess how that works can end up horribly horribly wrong or it might just be the perfect unwrap. 01:26.430 --> 01:31.150 Following on from that it is essential when using assets outside of blender. 01:31.320 --> 01:38.130 If you haven't performed any unwraps then someone outside of Blender's not going to be able to reconstruct 01:38.130 --> 01:39.180 your model. 01:39.600 --> 01:47.480 It's also essential in blender when using textures so that blender knows where to apply them properly. 01:47.640 --> 01:55.290 It is necessary if you want full control over how something is looking and just a quick example before 01:55.290 --> 01:56.910 we hop into a blender. 01:56.910 --> 02:04.190 This is one way in order to unwrap a cube so we can see their 3D object is becoming two dimensional 02:04.200 --> 02:05.650 it's becoming flat. 02:05.670 --> 02:08.480 Now that is just one way to unwrap a cube. 02:08.730 --> 02:17.100 So long as the faces of the 3D object now lie on a 2D plane it doesn't matter how it's unwrapped. 02:17.100 --> 02:22.890 Apart from the point that it unrra if it's unwrapped in an in an awkward way it will be awkward and 02:22.890 --> 02:29.010 a nightmare to work with later but will go into more about optimizing the maps and how to actually unwrap 02:29.310 --> 02:30.310 later on. 02:30.450 --> 02:35.960 So let's go hop over into blender and play with the Smart you reproject. 02:36.240 --> 02:39.580 Okay so we're over in a default scene in blender. 02:39.680 --> 02:45.240 I'm just going to change my propertys panel here to a U.S. image editor so I can see the u v as it's 02:45.240 --> 02:46.500 produced. 02:46.500 --> 02:53.070 Now let's just recap if we hop into edit mode and unwrap our model by pressing you. 02:53.070 --> 02:54.510 We can just click unwrap. 02:54.570 --> 03:01.800 And that applies each face in its entirety to our entire image it lies underneath. 03:01.880 --> 03:05.450 And that in most cases is going to be unsuitable. 03:05.460 --> 03:10.290 There are occasions when that might be suitable and that's if we've got a repeating texture here that 03:10.290 --> 03:12.210 repeats all over our particular model. 03:12.210 --> 03:17.340 Perhaps it's a bump map to make it look slightly bumpy in which case that might be an appropriate way 03:17.340 --> 03:22.680 of getting it there providing it doesn't cause any graphical artefacts that might be one thing you could 03:22.680 --> 03:24.860 do very quick to a map like that. 03:25.380 --> 03:30.660 So some one way of unwrapping a cubic can be unwrapped into that sort of cross shape. 03:30.870 --> 03:37.950 But if we unwrap a new smart e.v. Project which is the second option down there it gives us a series 03:37.950 --> 03:38.550 of options. 03:38.550 --> 03:43.560 ANGLE limit Island marking an area weights and a tick in the correct box. 03:43.590 --> 03:48.360 Now for the moment we're going to forget that it has those options there and literally go ahead and 03:48.360 --> 03:49.880 click okay. 03:50.140 --> 03:56.880 Now we can see in the movie image editor here that the unwrap is not quite like you would expect it 03:56.880 --> 04:01.560 to be because you can't fold the shape back up into that cube. 04:01.890 --> 04:09.240 Now if we go in to face select and go start you know start polling these these actual faces and seeing 04:09.240 --> 04:10.290 where they exist. 04:10.500 --> 04:14.000 We can see those two faces there like next to one another. 04:14.430 --> 04:17.280 But this one here is diagonally opposite. 04:17.400 --> 04:24.700 So that would cause some problems if we had a line running over the top of this cube from minus X. 04:24.870 --> 04:28.080 Positive x as it goes over the top there. 04:28.110 --> 04:33.990 You'd have a problem because the u v image here would be very difficult to make it start in one place 04:34.020 --> 04:40.380 and then continue over here imagining there's an image underneath and that will be very confusing to 04:40.380 --> 04:41.270 work with. 04:41.310 --> 04:42.910 So that wouldn't be a great. 04:42.940 --> 04:46.250 You ve unwrap for this particular cube. 04:46.380 --> 04:49.540 Something like the cross we saw earlier would be better. 04:49.770 --> 04:51.880 So let's go try this now. 04:51.900 --> 04:59.820 Over on our door some going to go ahead and open up the door that we've been working on and now hop. 05:00.080 --> 05:02.670 The 3D view so I can see what's going on. 05:02.810 --> 05:10.040 Now I can see here that we haven't quite nailed down every other bits yet have made our fall elodie 05:10.220 --> 05:11.740 level be. 05:11.900 --> 05:15.010 But let's leave that for the moment and hide everything else. 05:15.020 --> 05:15.730 But the A. 05:15.740 --> 05:20.920 Let's work on a more complex shape than our wall but nothing too complex at the moment. 05:20.920 --> 05:23.300 Somewhere to hide everything else from the scene. 05:23.300 --> 05:25.970 I could have also selected it and press shift H. 05:26.010 --> 05:32.150 I'll just do that now to make sure everything else is hidden and I'm going to open up a UV image editor 05:32.240 --> 05:35.010 as well so we can see what's going on. 05:36.490 --> 05:43.510 Now once that's open let's first of all just try what we've done before which is selecting everything 05:43.510 --> 05:47.180 in edit mode and then just unwrapping. 05:47.680 --> 05:50.540 Then we need something here it's currently stuck on render results. 05:50.560 --> 05:53.860 So let's close the render result down and we've got this. 05:53.860 --> 05:57.130 Now I have no idea how our brick text is going to map to that. 05:57.280 --> 06:05.180 So let's go ahead and open up the brick texture that we've used before the cinderblock and apply material 06:05.200 --> 06:06.840 to our object. 06:08.460 --> 06:15.390 Gone are anteriorly in our scene at the moment and I'm gonna call this wall door and the colour of that 06:15.420 --> 06:21.570 is going to be the image texture and because it's loaded into memory we can click on it from the drop 06:21.630 --> 06:22.070 up. 06:22.090 --> 06:23.720 There is not a drop down. 06:23.790 --> 06:26.090 So now we've got vats in the scene. 06:26.100 --> 06:31.980 What we should be able to do is hop over to rendered mode to turn my son back on so I can at least see 06:31.980 --> 06:32.620 it properly. 06:32.620 --> 06:35.800 Oh well well well that's not that's not looking too good is it. 06:35.850 --> 06:37.950 Dunno if you are going for that effect yet. 06:37.980 --> 06:41.610 It might be perfect for you but here looks an absolute mess. 06:41.610 --> 06:44.540 That's not how we want it laid out at all. 06:44.640 --> 06:50.640 However smart you project might be able to get us part of the way there or even all of the way there. 06:50.820 --> 06:57.000 So I'm going to select all of my model make in edit mode and unwrap that to reset the unwrap and then 06:57.000 --> 06:59.550 I'm going to use smart CV projects. 06:59.570 --> 07:05.330 I'm going to leave the default settings and click okay okay but starting to look better. 07:05.340 --> 07:11.550 But I can see straightaway that if a whole face is only mapped to around a quarter of this image the 07:11.550 --> 07:13.840 bricks are probably going to be quite large. 07:13.890 --> 07:19.350 So let's go ahead and go to rended married or indeed we can go to textured mode as well. 07:19.350 --> 07:26.700 Down here we can go to the material mode and well that is it's getting there isn't it. 07:26.730 --> 07:30.260 The U.S. smart project has helped quite a lot here. 07:30.330 --> 07:35.760 So we need to select everything again and see if we can scale this up so it fits properly. 07:35.760 --> 07:41.100 Now at the moment if we go and scale it scaling around an arbitrary point and that is going to make 07:41.100 --> 07:47.370 it very difficult to actually work out how big it's supposed to be unless we've got some sort of guidance 07:47.400 --> 07:49.090 on the model itself. 07:49.320 --> 07:56.010 So in this case what we can do instead is use some of the very similar methods we've used in the 3D 07:56.010 --> 07:56.690 editor. 07:56.790 --> 07:59.140 But this time in the U.S. image editor. 07:59.280 --> 08:05.520 So we've got a series of selection methods on along the header bar at the bottom and you can also gain 08:05.520 --> 08:11.130 access to them with control and Tab much like you can over on the 3d editing where you can select the 08:11.130 --> 08:13.500 edge vertices and faces. 08:13.500 --> 08:17.940 So over here we've got a fourth option we got virtex Edge and face in Island. 08:17.940 --> 08:19.900 Now I don't think we've got any islands in here. 08:19.920 --> 08:24.150 Oh yes we do it has separated them out into individual islands. 08:24.180 --> 08:30.040 So what we can do here just to demonstrate whilst we're here is we can scale something under a scale 08:30.040 --> 08:33.300 and by something I can scale it back up by some scaled it by half. 08:33.450 --> 08:35.040 That must be the other side of the wall. 08:35.040 --> 08:37.410 And look we've got even bigger textures there. 08:37.410 --> 08:43.860 So that demonstrates how you can use different parts of your model slightly differently and map them 08:43.860 --> 08:48.660 onto an image completely differently even though you're not changing any of the model itself you're 08:48.660 --> 08:51.150 just changing the mapping of the model. 08:51.390 --> 08:56.050 I'm going to undo that rather than scaling it back up to this time select everything. 08:56.460 --> 09:00.830 Now I want to scale it but I want to really scale it around a point in the corner. 09:00.840 --> 09:05.630 So I got a bit of guidance over the size that I'm making this huge. 09:05.670 --> 09:07.670 Unwrap I'm going to select. 09:07.720 --> 09:13.260 Oh I don't want the island selects how one vertex going to select this of a takes in the corner. 09:13.280 --> 09:19.140 Now just to let you know I am fully aware that the 2D cursor that we're about to move is already in 09:19.140 --> 09:25.470 a corner and we could utilize that Botswana to show you guys how to move that to the cursor and how 09:25.470 --> 09:28.230 similar it is to when working in 3-d. 09:28.240 --> 09:35.550 Ed I'm now going to you shift an S to move the cursor to selected so much light we can move the 3-d 09:35.560 --> 09:38.050 cursor we can also move the 2d cursor. 09:38.340 --> 09:44.430 Finally if we set the pivot points when we've got everything selected ours the pivot point down here 09:44.490 --> 09:47.610 next to a view to the 2d cursor. 09:47.610 --> 09:53.790 Now when we scale we will be scaling up from that 2D cursor which made it a lot easier to fill the image 09:53.850 --> 09:54.350 up. 09:54.570 --> 09:56.980 Now that is looking pretty good. 09:57.820 --> 09:59.270 Apart from. 09:59.350 --> 09:59.920 No no. 09:59.920 --> 10:03.320 That is I'm not sure they're all there. 10:03.370 --> 10:07.470 I'm going to leave it there for the moment Michael's make minor adjustments later. 10:07.480 --> 10:10.900 Now some of you will be aware that this is obviously upside down. 10:10.900 --> 10:11.920 Does that matter. 10:11.920 --> 10:13.930 Probably not with this brick texture. 10:13.930 --> 10:20.740 It may matter when we start tesselated it with other wall pieces but also at the same time the scaling 10:20.740 --> 10:25.450 might be slightly off as well so that something would have to standardize and check against the other 10:25.450 --> 10:27.340 models as well. 10:27.340 --> 10:34.300 So there we have this now unwrapped starting from a smart you reproject we've got ourselves almost there 10:34.300 --> 10:36.870 then we've scaled it up so it fits properly. 10:36.970 --> 10:41.980 And if we have a quick look around our model Now lets us have a look of as anything else we need to 10:41.980 --> 10:42.420 do. 10:42.550 --> 10:45.680 So the sides line up reasonably well. 10:45.760 --> 10:47.020 How about the arch way. 10:47.020 --> 10:49.650 Can we get a look inside the arch. 10:49.650 --> 10:52.630 Well yes that's also lined up reasonably well. 10:52.630 --> 10:59.350 I'm quite impressed how quickly and easily this smart uni project has actually worked without causing 10:59.350 --> 11:04.650 some major problems which sometimes it can when your model gets more and more complex. 11:04.930 --> 11:12.100 Okay so now we've gone over the Smarts you've reproject feature I'd like you to try out this challenge. 11:13.590 --> 11:17.880 I would like you to go ahead and use smart TV projects. 11:18.030 --> 11:26.790 So try it out on your window model and map a texture to your window show your work in the discussions 11:27.240 --> 11:29.680 pause video now and give that a go. 11:31.450 --> 11:32.120 Okay guys. 11:32.140 --> 11:33.060 Welcome back. 11:33.130 --> 11:39.710 Let's go you smart Eevee projects to project our blockwork texture onto our window. 11:40.710 --> 11:44.140 Okay so let's go and try out the same thing on our window. 11:44.160 --> 11:45.490 Is it in my quick select. 11:45.510 --> 11:49.100 No it's not so let's go ahead and open it up window. 11:49.160 --> 11:49.920 There we go. 11:50.100 --> 11:55.110 So this is going to be very similar to the door apart from it's not a a join at the bottom so I'm going 11:55.100 --> 12:03.570 to select everything and let's have the U.S. image editor already open so I can monitor how things are 12:03.600 --> 12:04.170 going. 12:04.170 --> 12:05.620 Yuri image editor. 12:05.920 --> 12:13.810 Okay so I'm going to selects everything in edit mode and use smart use projecting click. 12:14.370 --> 12:20.100 Our Alice stuck Orenda results I'm just going to undo that and similar to that arch. 12:20.130 --> 12:24.480 It looks like we've got a pretty good unwrapped to start with. 12:24.480 --> 12:33.180 Now I'm going to straightaway highlight all of this and rotate it by one a T on the y axis. 12:33.180 --> 12:35.420 No it's not rotated around quite. 12:35.420 --> 12:36.680 Howard expect it to. 12:36.870 --> 12:38.630 So let's rotate. 12:41.410 --> 12:42.580 It's rotating fine. 12:42.580 --> 12:44.340 Now Mary get. 12:44.410 --> 12:48.550 So that's now rotated round and it needs scaling up. 12:48.550 --> 12:54.390 Now I'm going to first add the picture to what we're or the texture to what we're doing here. 12:54.410 --> 12:55.640 So the cinder block. 12:55.830 --> 13:02.710 Now that won't show up in here just yet until we are applied a material and I'm going to in fact these 13:02.710 --> 13:08.170 materials should really be called something like window cinderblock so I know what it is but I'm going 13:08.170 --> 13:12.510 to call it window wall again since they're all matching at the moment. 13:12.820 --> 13:17.300 Again sometimes you have to accept that you may have to go ahead and rename something. 13:17.410 --> 13:20.710 So that's now map then just like before. 13:20.860 --> 13:26.180 Let's go and turn the sun on so I can see where is the sun in my scene. 13:26.200 --> 13:26.610 Okay. 13:26.650 --> 13:30.160 This isn't really lighting up missing quite as I'd expect it to. 13:30.490 --> 13:32.650 But let's go scale this up. 13:32.650 --> 13:38.460 I can still see as much as I want to or need to if I can turn some material and just see how that's 13:38.470 --> 13:39.250 being mapped. 13:39.250 --> 13:46.180 Anyway I suspect that sun is on a layer that I currently don't have enabled so I can scale this up now 13:46.180 --> 13:49.220 and again I'm going to set my 3-d cursor. 13:49.220 --> 13:55.780 So let's do everything here and it's already in the corner but I really want it in this corner. 13:55.780 --> 13:58.940 So I'm going to move my three cursor to the corner. 13:59.840 --> 14:01.120 Oh move. 14:01.150 --> 14:03.370 Carl kasell Selected. 14:05.620 --> 14:07.180 Not selected to cursor. 14:07.210 --> 14:08.650 I misread that. 14:08.740 --> 14:17.300 So cursor to selected select all and make sure the pivot point is set to the 2d cursor and scale up. 14:17.440 --> 14:25.180 Now I'm fully aware here that it is likely that I need to also shift it slightly this way as well of 14:25.180 --> 14:30.010 a whole dot shift for a bit more granularity and it's more likely to be like that. 14:30.010 --> 14:34.620 I think where the whole face is covered up then we've got these extra bits either side. 14:34.630 --> 14:36.450 I think that's much better that way. 14:36.460 --> 14:41.920 So let's go and check around the model that things are lining up as we expect them to go. 14:42.230 --> 14:45.960 So I'm going to hop out of edit most of my got lines everywhere. 14:46.030 --> 14:48.540 So this one is a little more problematic. 14:48.550 --> 14:53.420 Doesn't look that great around the window itself and that might be because there's not enough detail 14:53.430 --> 14:58.750 there but also you very rarely make a window out of a block in that manner. 14:59.050 --> 15:04.660 So a couple of ways that we can sort this out is number one move the mesh make it slightly wider so 15:04.660 --> 15:07.890 it fits in the brick work itself. 15:07.890 --> 15:13.490 So this this point in the archway seems to line up pretty well if this morter line at the top. 15:13.510 --> 15:18.940 However this bit down here so that's where you would start making your geometry match or textures which 15:18.940 --> 15:20.660 is a slightly different workflow. 15:20.740 --> 15:26.170 But if we're working with textures that we haven't created we may have to do that a bit of artistic 15:26.170 --> 15:31.450 licence if you will in order to make sure that the texture maps well to our model. 15:31.480 --> 15:37.270 In fact then we're making our model map well to the texture as well so it's awesome biotic relationship 15:37.690 --> 15:39.870 now we have a look on the inside. 15:39.880 --> 15:42.550 It's not as neat as before either. 15:42.550 --> 15:48.970 So that's something we can work on again not at the moment because yes it's a bit unsightly but that's 15:48.970 --> 15:53.410 the detail we don't know what this window is going to end up looking like. 15:53.530 --> 15:58.260 We may end up covering up those details with other bits of geometry. 15:58.390 --> 16:01.030 So at the moment they they really are superfluous. 16:01.030 --> 16:02.920 They do not matter at all. 16:03.920 --> 16:09.930 Now looking around the other side of the texture it does appear like this is much much better matched 16:09.940 --> 16:11.860 up to the image itself. 16:11.860 --> 16:18.520 So this is another example of well let's give it a go now this is lying over here and I'm presuming 16:18.520 --> 16:23.760 if we select one of these faces that's Go to face selects and select here. 16:23.890 --> 16:27.560 Yes this is the one that we've actually lined up properly over the top. 16:27.700 --> 16:32.640 So we go to Ireland select on our model and select this island. 16:32.800 --> 16:35.400 We should be able to move it so it's almost. 16:36.370 --> 16:38.120 Right on top of the other one. 16:38.170 --> 16:43.020 If I turn off snapping that's going to give me much or rather turn on snapping. 16:43.030 --> 16:50.620 But we want it locked to a vertex and now we can overlap these perfectly. 16:50.710 --> 16:55.640 And then when we spin around our model the other side looks exactly the same. 16:55.780 --> 17:00.250 And doesn't that look much better now that it's mapped with the block. 17:00.250 --> 17:00.810 Why is that. 17:00.820 --> 17:04.090 That's not planned by the way that looks near enough perfect. 17:04.140 --> 17:09.780 In fact we can get the geometry slightly wider all the mappings slightly wider so we can go in here. 17:09.790 --> 17:15.280 And of course all to these mapping points so that the texture is mapped slightly differently across 17:15.280 --> 17:16.110 these faces. 17:16.240 --> 17:20.980 I'm not going to muck around with that at the moment because that's too much detail as I've mentioned 17:20.980 --> 17:22.150 at this point in time. 17:22.330 --> 17:27.370 But that small alignment there has made all the difference and I feel much better already about the 17:27.370 --> 17:29.370 texture fitting the model. 17:29.380 --> 17:30.760 How did you guys get on. 17:30.880 --> 17:32.260 I'd love to see your progress. 17:32.260 --> 17:36.920 Please share in the discussions and I will see you guys in the next lecture.