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Blender Basic Texturing Tutorial (Donut Part 5) — Transcript

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0:00It's time to texture these bad boys.
0:03Finally, after hinting at it for so
0:05long.
0:06Um so, we added some simple materials
0:09and uh that is actually fine for some
0:12types of objects. Like, you might
0:13actually have a plate and go like, it's
0:15just white plate. Doesn't need any
0:17texture. But, most things need texture.
0:20So, I'm going to select my uh table
0:22floor here. I'm going to go to the
0:24material panel right here. And I'm going
0:27to add a new material since it doesn't
0:28have one. And um let's look at how to
0:32add a texture. So, right here where
0:34we've got base color, if we want to add
0:36a color texture, we just click on this
0:39little uh yellow dot next to it. I know
0:41that's not clear. It will become clear
0:43when I show you nodes. Um but, when I
0:44click this, you get this uh slide-out
0:46menu with a bunch of different options
0:48here. Um and the one that I'm looking
0:50for says image texture. Okay. So, now I
0:53can hit um open.
0:55And just to demonstrate this, I'm going
0:57to select a wood texture that I
0:58downloaded off the internet just to show
1:00you how this works. Now, on this note,
1:03if you happen to see this, if you use an
1:05image texture that you find online, it's
1:07because there is a new feature feature.
1:10Uh
1:10it that there's a purpose. There's a
1:12There's a new feature in Blender 5.0
1:14where if it identifies in the name
1:17anything from the number 1,000 to 2,000,
1:19I think, um it'll think that is a UDIM,
1:23which is a completely whole, you know,
1:25production professional workflow kind of
1:27thing.
1:28Um it'll think it's a UDIM. And it
1:31Anyways, what you need to do is then
1:32change this to single image. But, most
1:34of the time, most images, if it doesn't
1:36have those numbers uh a string at the
1:39end, it should just load in fine.
1:41Anyways, let's say you had an image like
1:43this. Um you wanted the table to look uh
1:45wood, right? We're not going to do that,
1:47but you know, just just to show you.
1:49Um
1:50you would see it it's okay, right? But,
1:53there is no bump information. Okay? Um
1:56and that is because, of course, the 3D
1:58software doesn't know that there's
2:01supposed to be crevices here, right?
2:03Little dips in between the table, the
2:05the fine tooth uh grain of it. It has no
2:08idea because it's just taken with a
2:10single camera. It would have no idea how
2:12to guest guest what that true
2:14information should be. I mean, there is
2:16technically a way to guess it, but it
2:17never really turns out well. Um so, I'm
2:19not even going to bother showing you. Um
2:21so, most of the time, when you're
2:23talking about texturing in 3D um and
2:25using image textures, like textures from
2:27the real world, um you don't just grab a
2:30random image texture that you find
2:32online. You need to use a PBR textures,
2:35which stands for physically based
2:37rendering textures. And there are many
2:40different places that you can get PBR
2:41textures from. The best website that I
2:43think is Polygon, p o l i i g o n dot
2:48com. The link is below.
2:50Um and I think it's the best website
2:51because it's my website. It's my
2:54company.
2:55Um which I created 10 years ago, and it
2:57is now the fastest growing texture
3:00library
3:01um online. Um so, we've got
3:03photographers all over the world, and
3:05they use specialized equipment to go out
3:07into the world and they capture surfaces
3:10um usually like photograph the surface
3:12like hundreds of times, which is what
3:14enables you to actually capture all of
3:17that height information, the bump, uh
3:19the shininess reflectiveness of
3:21materials.
3:22Um and actually capture all of the maps
3:24that you can see here, for example.
3:26These weird-looking maps um is exactly
3:28what Blender um needs to
3:31uh to to make the material look
3:33realistic. So, we've got a bunch of
3:34different categories, obviously like
3:36almost anything you want to create, um
3:38you can find the textures um on here.
3:40But, for just this tutorial, if you go
3:43to polygon.com/a
3:45donut, the link for that is also below.
3:47Um but, this has the uh six textures
3:51that you'll actually need to follow
3:52along for this video.
3:54Um they're all free. We've made them
3:55free. All you need to do is get a free
3:57account, um and you can download all of
3:59those by just clicking them and then
4:01hitting uh download. And also, if you
4:03scroll down, uh we've got some premium
4:05textures here if you have uh a
4:06subscription with us um that you could
4:09use for the cafe scene that we're making
4:11to kind of spruce it up, make it your
4:13own, add some variation there. Um so,
4:15we've included some ones here that go
4:17well uh with the scene. Um and if you
4:19use this link, you'll get 10% off uh any
4:21any uh plan you choose. So, the first
4:23texture I want you to start with is uh
4:26it's going to be our cafe table. Um and
4:28obviously, you could, you know, you
4:30could use any texture that. You could
4:31use, you know, some of the ones down
4:32there if you wanted to. Um but, I want
4:34you to start with this one, this
4:35concrete texture. Um because we're going
4:38to make this look like a concrete table,
4:39something that, you know, a lot of cafes
4:41can sometimes have. Now, we actually
4:43have a Blender add-on, which makes
4:45downloading and importing these things
4:46even simpler. But, I want to give you
4:48the traditional way to import PBR
4:50textures first, so that you know how to
4:52use PBR textures just flat. Um and then
4:54I want to show you the easy way after.
4:56So, once you've got your free account,
4:58you can come back here, and you can
4:59click on download, this big download
5:01button. So, that'll give you an 8K uh
5:04texture. You probably don't need it. You
5:05could probably get by with four, but I'm
5:07going to get the 8K just to show you how
5:09it looks. Now, this will download a zip
5:11file like here. Okay? So, it should be
5:13fairly quick. It's about 289 megs. Once
5:16you've downloaded this texture, I need
5:18you to unzip it. So, with Windows, you
5:20just right-click and go uh extract all.
5:22Uh if you're on a Mac, you just
5:24double-click it, and it should just
5:25unzip itself. Now that I've got that,
5:27you can
5:30It's the stuff that's in here. This is
5:32the good stuff. This is the one we
5:33actually need to use. So, I'm going to
5:36uh just copy this folder uh location,
5:39and then uh back in Blender, for my
5:42selected plane here, underneath base
5:44color, I'm just going to uh just like
5:46before, you know, select image texture
5:48if you haven't already. Then, I'm going
5:50to click open. And then, a lot of these
5:52images look pretty similar. There's very
5:54little detail across them. There is
5:55some, uh but the one we're looking for
5:57is _base color. So, that is the one
6:00we're going to start with. Okay. So,
6:02this has given us a nice clean de-lit
6:06concrete floor texture, but the same
6:08problem. We don't have that height
6:10information there. And that's because,
6:11just like before, we've only loaded in
6:13information into the base color. So,
6:15it's it's almost like this has been
6:16printed on cardboard. That's kind of the
6:18appearance there. So, we need to load in
6:20the other PBR texture uh maps, they're
6:23called uh all of those uh different uh
6:26images that we downloaded. And we could,
6:29you know, import and do them the same
6:30way by clicking these little dot and
6:31then go image texture. But, it's very
6:33fiddly. And this view here, you can
6:35probably tell is like it's not designed
6:37for like complex texturing work. If you
6:40want to do complex texturing work, you
6:42should click on the shading tab at the
6:44top of your screen. Now, this view looks
6:46completely different. You've got a 3D
6:48view at the top. You've got these nodes
6:50here, which are very useful. And then,
6:52you got two over here that I think are
6:53kind of pointless. I don't really think
6:56they should be here.
6:57Um I've never really wanted them. So,
6:59I'm going to right-click on the uh
7:01like the divider between these little
7:03windows here. I'm going to say join
7:05left. And then, I'm going to do the same
7:07for the bottom, join left. And then, I
7:09also I want to flip it because I haven't
7:12I don't really like having like the top
7:14view and this. It's like it's too
7:16wide-screen to like look at things like
7:18this. So, instead, I'm going to
7:19right-click this, say join uh down. And
7:23then, at the top of my screen here, the
7:25top of the little uh divider there,
7:27until I get that little uh little
7:28arrows, I'm going to right-click, and
7:30then I'm going to say vertical split.
7:32And then, to make this one on the
7:33right-hand side, those same shader nodes
7:35that we had from before, click from this
7:37little drop-down at the top. Uh by the
7:39way, if you don't see it, um you just
7:40have to like middle mouse like grab and
7:43pull across, and you will get uh all the
7:45way to the end there.
7:46Uh but yeah, if I click that and then go
7:48shader editor,
7:49then close this by hitting the N key.
7:52It's a lot of steps. Uh but now, I have
7:56my shader nodes. So, the shader nodes
7:58over here, this is actually the same
8:00information as what we have in our
8:03material over here. For example, if I
8:05was to uh adjust this roughness, you can
8:08see that it's adjusting both of those
8:10values there. And when we added in this,
8:12and we we clicked image texture, it was
8:15basically in the background adding in
8:17this node here, which loaded in the
8:19image texture. So, this is a it's a
8:21simplified view. If you want to do like
8:23small changes to a material, you use
8:25this panel here. If you want to do
8:27anything more complex than that, you use
8:30the shader nodes here. And it's pretty
8:32self-explanatory to understand how
8:34shader nodes work. It's like over here,
8:37this is your material output. It's the
8:39final material. And generally, you have
8:41a shader, which is something like this,
8:43principled BSDF, that is the shader that
8:45you use for like 99% of materials now.
8:48And then, you just have a bunch of
8:50values. And then, you can connect things
8:52into this um to do different things. And
8:54I'm going to show you how we can like
8:55tweak this texture and do a bunch of
8:56stuff. Um but, first, let's load in some
8:59of those PBR texture maps. By the way,
9:01if you're wondering uh the one the view
9:03on the left-hand side of the screen
9:04here, why does this look different? This
9:06is because, and again, a middle mouse
9:07drag along the top there, um
9:10we we talked about the 3D viewport. We
9:12talked about the rendered view mode. We
9:14didn't talk about this one. This is the
9:15material preview mode. And it's
9:17literally designed for previewing
9:19materials because it loads in a like
9:21fake world view around a called an HDR,
9:25which you can actually swap out here, so
9:27you can see, you know, different types
9:29of uh environments. But, it's a way to
9:31like quickly visualize a material
9:34um without having to like change a bunch
9:36of lighting to understand how the
9:38material's going to look cuz materials
9:39look very different in different uh
9:41lighting setups. So, it's actually a
9:42very useful mode, um and it makes sense.
9:45It's called material preview. So, let's
9:46load in another image. So, I'm going to
9:48hit uh uh I could hit shift A, or I
9:50could just go add at the top of the
9:51screen there. It's cool. The Blender's
9:53hot keys are the exact same ones
9:54everywhere. So, shift A is the same as
9:56shift A over there, right? Add.
9:58And I'm going to go texture and I'm
10:00going to say image texture. Okay. And
10:02now it's just asking where do you want
10:03to drop it, so I can just drop it
10:05anywhere. And I'm going to click open.
10:07Then I'm going to navigate to that
10:08folder where all of the images are. And
10:10the first one I'm going to load in is
10:12this one called underscore normal, the
10:14purple one.
10:16And it's you can remember it as the
10:17normal map because it's normal to ask
10:20why is that purple? That's how I
10:22remember it.
10:23>> [laughter]
10:25>> Then yeah, just hit open on that.
10:28And the place that you would put that,
10:30you could guess, is the normal input,
10:32that little purple input there on our
10:35shader there. So, the way you connect
10:38something to something else is you just
10:40where there's a point, you just click
10:42that point and you just drag out and
10:44connect it to another point and then you
10:46release. And then it is connected.
10:49Now, you can see that there is some bump
10:51information now. But you wouldn't know
10:53it, but this is actually the wrong
10:55What's It's partly the way to connect
10:57something, but we need to do something
10:59else. First of all, you can see that
11:01between here and here Whoops.
11:04We've gone from a yellow input to a
11:07purple input. Now, it's okay to go from
11:09like yellow to gray because gray just
11:11means gray scale, so you can go from
11:13color information to gray information,
11:14that's fine. But normal is like vector
11:17information. Yeah, without getting
11:19technical, like the normal is the way
11:21the faces, like that invisible line of
11:23the faces, and this is like faking which
11:25direction each of those pixels has.
11:28Um
11:29But basically, we need to add something
11:30between here and here to convert this
11:33from color information into vector
11:35information. And we can do that by
11:37hitting shift A to add again, and then
11:40going to displacement in this drop-down
11:42and clicking normal map. You can also,
11:45if you can't find it, you can go to the
11:46search bar and you can type in normal
11:48map as well. All right, once you've got
11:50this normal map, you then just need to
11:51drag it over that line until it lights
11:54up, and then you just want to do a
11:55single click and it will connect it.
11:57Okay. So, now it is correctly connected.
12:01But it But still, it's just not quite
12:03right. There are There is a lot of steps
12:05to like manually connecting PBR texture
12:07maps, which is why I want to show you
12:08the fast way to do this after this. But
12:11I need to show you this because you
12:12might be using PBR texture maps from
12:13elsewhere or from like production files
12:15and stuff, and you need to know how to
12:16actually manually connect them. So, when
12:19you're working with PBR texture maps,
12:22the only texture that should have the
12:25color space sRGB is your base color,
12:28okay?
12:30Every other map should have the color
12:31space set to non-color. And again,
12:34without going technical I keep saying
12:36that because you shaders are very
12:37technical.
12:39It It basically it's it's it's
12:41converting it to linear space. So, it's
12:43using that
12:44Or it's actually not doing any
12:45conversion. It's just saying like let's
12:47use the raw values from that and
12:50just use it linear. I don't Yeah,
12:52anyway.
12:53>> [laughter]
12:54>> Other Other software sometimes call
12:56those maps, but our Blender's is a
12:58non-color data. Okay. So, now that we've
13:00got that, look, we've got bump across
13:03our concrete there. And if we went into
13:05the rendered view at the top there,
13:07you could see if I took my lamp at the
13:09top there, and then I brought this like
13:11way down to the
13:13plane that you can see we get this like
13:14nice gritty shadows cast across the
13:18surface there.
13:19Um
13:20And this is how you make materials that
13:21look realistic. You can't get this
13:24information any other way than by
13:27very expensively capturing these
13:30surfaces, and I know that because I've
13:32seen the bills. I know how much it costs
13:34to capture surfaces like this.
13:36And it can be thousands. That's where we
13:38started, and over the years we've got
13:40that price way way down.
13:42But it's it's a very expensive capturing
13:45process. It's not easy to do. It's not
13:47fun. It's very boring to do. So, unless
13:50you really want to go into that space,
13:52it's not something you want to try to
13:54do.
13:55Anyways, so that's the normal map, but
13:56there is another map which is useful.
13:59So, I'm going to hit shift A to add
14:01another map, and I'm going to say
14:03texture, and I'm looking for image
14:06texture. Okay. And then I'm going to
14:08click open on this, and this time I'm
14:10looking for the one with underscore
14:12roughness at the end of the name.
14:15Okay. And then just like before, I need
14:17to make sure my color space is set to
14:18non-color data. And then finally, I want
14:21to drag this out to plug into my
14:24roughness input.
14:26Now, when you do that, you'll see the
14:27material goes very very dull. So, it was
14:30like, you know, before when we set this
14:32to like shiny like this,
14:34when we connect this in here it goes
14:35dull because concrete is dull. So, this
14:37is actually like the correct value for
14:39concrete. We like calibrated it to make
14:41sure. So, this is is that. Now, it's
14:44very often that you actually want to
14:46customize something. Like, for example,
14:48cafe tables often have concrete that has
14:51been like buffed or like coated in some
14:53sort of gloss or something like that or
14:56an epoxy. So, it can It It's totally
14:58fine to just want to have like the free
15:01control of the slider there and not use
15:03it. Like, the maps are there if you need
15:06them, right? If you really want to go
15:07for something realistic, you would use
15:09them all, but sometimes you don't, and
15:11it's totally fine to just disconnect
15:12them. Now, the other maps here, by the
15:14way, if you're curious, this yellow one,
15:15ORM, we don't use that in Blender,
15:18that's used by game engines. Polygon
15:20provides them because we, you know,
15:21serve all the different renderers and
15:23softwares out there. Displacement is a
15:25different method than normal map. We're
15:28actually going to use that on the donut.
15:30Metallic is if the material contains
15:32metal, that's the only time you would
15:34use that. And then the other one is
15:35occlusion map, an ambient occlusion map.
15:38That's if it there's like deep crevices,
15:40like if it's like a pebble pathway or
15:41something like that. This is the actual
15:43like shadows that like collects inside
15:45of crevices.
15:46But we don't need that. Honestly, most
15:49of the time these three maps, the base
15:50color, the normal map, and the
15:52roughness, that is like 90% materials.
15:55And that's really all that you need for
15:56those. But it is still very finicky to
16:00do this, right? Am I wrong? Like, having
16:02to remember the color space and connect
16:04this and convert that and like even just
16:06these three things was like 30 clicks.
16:09So, that is why most people that are
16:12dealing with PBR textures don't want to
16:14have to do this. They want to use an
16:16add-on like
16:18the Polygon add-on. So, at the top of
16:20the page on polygon.com {slash} donut,
16:23you can click this link that says
16:24download Polygon add-on, or you can just
16:26go to {slash} Blender. This will show
16:29you how to install it. If you don't want
16:30to read that, I'll show you how to do it
16:32right now. Unlike before, when you have
16:35your zip file, do not unzip it. Blender
16:37actually needs this zip in order to
16:40properly install it. So, what you do is
16:42you drag out and you release the zip
16:44file from anywhere on the computer, and
16:47then it will say install this because
16:49it'll recognize it as an add-on, and
16:50then you say yep, install, and you say
16:52okay. Now, if you go to edit
16:55preferences, then go to add-ons, you
16:57should see one there called Polygon at
16:59the top there, which means it has been
17:01successfully installed. If it didn't
17:03successfully install, maybe you're on a
17:04Mac and maybe it actually automatically
17:06unzipped itself, in which case you need
17:08to rezip it and then drag it over. But
17:11yeah, it should install if it is
17:12properly zipped. Now, once you have done
17:15that, in your 3D viewport over here, if
17:18you hit N, which brings up your
17:21properties, you should see a tab there
17:23that says Polygon. Then if you just like
17:25one-click login, this will take you here
17:28and then it will just say login
17:29confirmed. Go back into Blender and you
17:32should see now we've got materials in a
17:36scroll bar, right? Which is pretty cool,
17:38and I can type in anything I want. Let's
17:40say
17:41sprinkles cuz I know there's some
17:43sprinkles materials here, for example.
17:45But you can also browse by category,
17:48right? You can look at all the different
17:49ones. And importantly, this will
17:51actually download it. So, one-click
17:54download like this, and then one-click
17:56apply, and look at this.
17:59All of this has been set up
18:00automatically. All of these are
18:02automatically set to non-color. We've
18:04got the exact precise
18:08correct use of every single map that is
18:11ready to go.
18:12But anyway, go back to my previous
18:14material here, and let's go to
18:18free category, and then let's use
18:21another one. So, this speckled glazed
18:25ceramic plate.
18:27And by the way, you can like click the
18:28little drop-down there if you want to
18:30see something online to get like better
18:32picture for it,
18:33you can quickly view it that way. But
18:36this is the one we want to apply to our
18:38plate here. So, with my plate selected,
18:41I need to first of all hit download.
18:43I've already done it, which is why I
18:44don't see it, but you hit download and
18:46it'll just save it to your folder, which
18:48is in your preferences. And then with an
18:51object selected, you should be able to
18:53hit apply. If you don't see the apply
18:55box, it means that you haven't got an
18:57object selected, so make sure one is
18:58selected in order to click that box.
19:01Okay. So, we have correctly
19:04applied it. You can see all the nodes
19:05are there. It's the correct material.
19:07Why isn't it showing up on our object?
19:09Now, this isn't a fault of the texture
19:10or anything like that. This is to do
19:13with texture mapping, which is the next
19:16thing to understand when it comes to
19:18textures. Is textures are 2D, right? 2D.
19:21And our objects are obviously 3D. So,
19:24how do you apply a texture to an object?
19:27There are so many different ways. And
19:29the most common way is to use UV
19:32unwrapping, which is the default method,
19:34which is what it's actually looking for
19:36right now. You can see that's the
19:37texture coordinate that it's called in
19:39is UVs. And for something like a plate,
19:42this is the most simplest thing ever cuz
19:44it's just creating UVs. So, in edit
19:47mode, so just tab, and then select your
19:50entire mesh like that. Then hit U, U for
19:54unwrap, and then select unwrap angle
19:57based. And look, now the texture has
20:00been applied. So, what did that actually
20:02do? If you go to your UV editing tab at
20:05the top of your screen there, just click
20:07that, you will see, and let's uh focus
20:09on our object, so number pad right
20:11there, and I'll just uh turn this off so
20:13we can see the mesh underneath it, and
20:15this one as well. And let's look at uh
20:17the wireframe. Okay, so when we UV
20:19unwrapped it, it basically took I mean,
20:21it in in the case of something as flat
20:23as this, it just took a snapshot of it,
20:25and then it put it into the 2D space
20:27over here. And from your drop down, you
20:29could actually change it to the color
20:30map, and you could see where it's
20:32actually applied to on it. So, if I
20:34select a point right here on the mesh,
20:36you can see which point is actually
20:37selected there. So, it's right next to
20:39this little spot, and you can see there
20:42is this spot in the ceramic there, okay?
20:44And as I uh
20:46if I was to select everything with A,
20:48and then if I was to hit uh to rotate,
20:51you can see that the texture is being
20:53updated over there. In fact, if I turn
20:55off the overlay there just to uh see it
20:57more clearly, and then I turn on the
20:58thickness, right?
21:00Watch this. As I select everything in
21:02edit mode, I can move this around, and
21:05the texture coordinates are updating in
21:07real time. Okay, I can also scale this
21:09by hitting S, and this is a really
21:11common thing you do, because like often
21:13a mesh is a completely different size to
21:15the captured size of the object. Um in
21:17Polygon's case, for like detailed
21:19textures like this, this is a 30 by 30
21:21cm texture, which is actually probably
21:23pretty perfect for a plate. Maybe a
21:25maybe a plate should be a little bit uh
21:28scaled in like that, so that the dots
21:30are a little bit bigger. But, you could
21:31see this is very, very easy to do. Let's
21:34go back to layout over here. I'm going
21:36to select the icing now, and let's do uh
21:39one that's a little bit more
21:40complicated. So, I'm going to hit N to
21:43bring up the properties again. I'm going
21:44to scroll down, so this is in the
21:46textures free category. Scrolling down,
21:48and I'm looking for the strawberry pink
21:50uh glaze. Okay, so we got this
21:52strawberry pink um texture, right? And
21:55this was actually captured um by
21:59literally pouring a bunch of icing into
22:01a pan, um and then using a stereoscopic
22:04scanner to capture it from all
22:05dimensions, so that you get this like
22:07really interesting like that height
22:09information there, the little bumps of
22:11like the sugar crystals and stuff
22:13popping through. Pretty cool. Anyways,
22:15let's hit apply on that.
22:18Okay, you could see there is some
22:21texture on here, unlike the plate which
22:23came in like nothing. And the reason for
22:25that is that when you add in um a torus,
22:28like certain primitives, we added in a
22:30torus, it actually comes in with UV
22:33unwrapping already created, okay? So,
22:34with this this one here.
22:36So, it's already got some UVs, but all
22:39that extra work that we did at the
22:40bottom there, like extruding some things
22:42down, that's all been missed, all of the
22:44way that things have been shifted,
22:45because now it's lumpy, all of that is
22:47missing as well. So, it would help to
22:49actually UV unwrap this again, and
22:52project these points in a way that
22:54actually match matches the mesh. So, the
22:58way to think about this is what if this
23:01mesh was made of paper, and we had to
23:03lay the paper flat over onto this
23:05texture on the left-hand side over here?
23:08Where would you place the cuts on the
23:11mesh in order to lay it flat? And in the
23:13case of something like this, where I
23:16would place the cuts would be
23:17essentially along the edge, right along
23:21here. Okay, so if I alt click along that
23:24edge there, that should select all the
23:26way around it. So, do check that it goes
23:28all the way around it. Um if it doesn't,
23:30then it just this next step will come
23:32out a little bit funny. Um anyways, now
23:35that I've selected that, to add a cut,
23:38we're going to hit control E,
23:40and then I'm going to select mark seam,
23:43okay? And now, if I was to go back into
23:46uh wireframe mode here, and then just
23:48turn off the selection, you should see
23:51that we've got a line here that is red.
23:53By the way, the one next to it that is
23:54purple, that is the one that has the
23:56crease, which we added when we used the
23:58solidify thing to make it cling to the
24:00uh to the donut a little bit better. So,
24:02we've got this line that goes all the
24:04way around it, okay? And that has done a
24:07cut. Now, nothing has changed yet,
24:09because we still haven't UV unwrapped
24:10it, and that's okay, because we need to
24:12do one more
24:13right in the middle of our donut. If you
24:15just select like a random point on the
24:17inside of the donut there, then hit your
24:20focus key, um tilde three or numpad
24:23period,
24:24then you should be able to get in nice
24:26and close to it. Now that I'm here, I'm
24:28going to do the same thing, so hold down
24:30alt, and then select this line here, and
24:32now I'm going to hit control E, and do
24:35another seam. Okay, now that I've done
24:37that, select the entire mesh, and just
24:39like before, to unwrap it, it's U, U to
24:42unwrap, and unwrap angle based. Now,
24:45watch what happens.
24:47Ready?
24:50Well, that's taking a long time. I don't
24:51know why it took that long. [laughter]
24:52I've never seen it stall like that
24:54before, okay? Anyways, but look,
24:57that is perfect. That's pretty well
24:59perfect. I mean, there's probably a
25:01little bit of stretching there. There's
25:02always going to be stretching, guys.
25:04You'll never get it perfect, but as long
25:06as the stretching is minimal, like that
25:08is pretty well good. It's laid flat,
25:10like it looks almost like a cowhide rug,
25:12you know, like the and the dead animal
25:15that's been stretched out. It looks like
25:17that, but like that's that's how it
25:18works, right? So, now if I go into
25:20material view, look at this now.
25:23We no longer have I mean, you couldn't
25:25really see it clearly before, but you no
25:26longer have the stretching um that was
25:29happening there. It's now been properly
25:31um
25:32stretched across it. It's been properly
25:34mapped, and so we've got the texture
25:35going all the way in there. Now, the
25:37scale of this is probably wrong. So, um
25:40I like to like change the scale here,
25:41and I want to see it over there. So, I
25:43like to turn off my over uh overlays at
25:46the top there. So, you can just click
25:47that little box, that'll turn off
25:49everything, so you kind of can see
25:50what's selected, and now I can just
25:51change the scale here,
25:53um and I could make it bigger or
25:55smaller, um
25:57but yeah, you can play with the size,
25:59and and try and get it good. But, why
26:01does it look so pale and pink and like
26:03not as fun as it was before? Well, it's
26:05because when we added in that texture,
26:07right? When we clicked this, it overrode
26:10overrode um
26:13the material that we had before. So, if
26:15you go back to your shading tab, you'll
26:17see we got all these textures, and for
26:19example, before we had a pink color that
26:21was in the base color. Now, it's been
26:23overridden with the actual strawberry
26:25color, which was captured with the
26:26camera. However, that strawberry is a
26:28little paler than what I want. So, I'm
26:31actually going to disconnect it, because
26:32there's not actually that much
26:34information in color when it's something
26:36like this. All the information is in the
26:38bump. So, we can really just get by with
26:40Actually, we don't need metallic, cuz
26:42there's definitely no metal in it. Um
26:44I'm going to keep the roughness. That's
26:45okay to keep, because I just actually
26:47want to see that. I'm going to
26:48disconnect this, which is the subsurface
26:51amount, um because I want to control
26:53that myself as well. And I'm just going
26:55to leave the roughness and the normal,
26:57and that's it. Oh, I should explain how
26:58I was disconnecting those. So, if you
27:00hold down control and then right-click
27:03drag, that is how you can disconnect.
27:05You can also just click these points,
27:06and then just disconnect like that, but
27:08I prefer to control right-click drag,
27:10and that'll cut it. Um sever the tie.
27:14And now that I'm here, I'm just going to
27:15set these values to what I had before,
27:17you know, just playing it by eye, what
27:19pink color looks good. Set my subsurface
27:22amount radius to one, and then I'll
27:24change this uh scale value till it looks
27:27nice. But, there you go. I've now got my
27:29fleshy pink donut,
27:32um
27:32but I I now have this lovely bubbly um
27:36sugar crystals real glaze going on the
27:39donut.
27:40All right, now let's do another fun one.
27:41Let's do the donut itself. Now, this is
27:44a an interesting one that I had my team
27:46do um before we did
27:48uh before I started recording. Um I had
27:50them go out and scan a real donut, scan
27:53it all the way around, and then map it
27:55to a torus, and then just get the
27:56extracted data. And because this has
27:59been already UV unwrapped to map the
28:02exact square, just like what we um uh
28:05sorry.
28:07Yeah, just like what is captured for
28:09this this type of map here, now I can
28:11just apply this, and it'll automatically
28:13do it. So, let's do that. Hit apply, and
28:15that's pretty good. Like that's nice
28:17color, we've got nice bump there. If we
28:19bring back our icing, you can see that's
28:21already pretty good, right? But, there
28:24is something else that we can do,
28:25because when I was talking about
28:27shading, you might remember I mentioned
28:29that there is two different ways of um
28:32uh creating normal I sorry, creating
28:35bumps, right? And the the the normal
28:37one, the purple one, that's the one
28:39we've been using uh thus far. But,
28:41there's another one here, which comes in
28:42disconnected, and it's the displacement
28:45map. Now, in the newer versions of um
28:48the Polygon add-on, like the next
28:50version that's coming out after this,
28:52you'll be able to in this last use box
28:54here, you'll have an option that says um
28:56displacement and I sorry, displacement
28:59type. You can currently see it in
29:01Cycles, so if you use that, you can
29:03change it here to displacement and bump.
29:05But, because Eevee only just came with
29:08this feature to enable displacement,
29:09it's not yet there.
29:11Um so, we would have to connect it um
29:13ourselves. But, essentially all it's
29:15doing is when you change that little
29:17drop down there, if I grab all these
29:19things here, hit G to move them down,
29:21and then I sever this tie with the
29:23normal, and then I take my displacement,
29:26don't put it in the normal input though,
29:28put it in the displacement output of the
29:30material here. And what this is doing
29:33now
29:35is well, it's it's still a fake bump,
29:36but the other setting that it would
29:38enable is here in your material
29:40properties, right down here at the
29:42bottom, where it says displacement, it
29:43would change that to displacement and
29:45bump. And now, if I select my icing, it
29:48H to hide it, um you can see that the
29:51mesh has changed, right? This is the
29:53underlying mesh. It's now kind of
29:54expanded. And this is actually the
29:57captured data of the height, and it's
29:59being projected out of the donut. But,
30:01it can only use the actual data, which
30:04is on the mesh, okay? So, it currently
30:07looks kind of like chunky, um because
30:10there's not enough information. So, if
30:11you go to your modifier panel here, and
30:14then what would we add to more add more
30:15geometry? We would add in another
30:18subdivision surface.
30:20And now, when we do that, if I increase
30:22this,
30:23you can see if I increase it two, three,
30:25four times in the viewport, you can see
30:27I get a lot more data come through.
30:30Okay, I I think three is about it. Um
30:32I'm just going to I'll I'll set render
30:34to three or four. Yeah, I'll set it to
30:36three. That should be fine.
30:38Um it comes in a little bit projected.
30:40If you want to change the scale of it,
30:41you can also do that
30:43um here. I could change the scale from
30:45.2 to about .15.
30:48Also, you should see how it looks with
30:49your icing. So, I'm going to hit Alt H.
30:52Um you can see it's actually, yeah,
30:53clipping through it. So, I'll select my
30:55donut again, and I'll change the scale
30:57here to about
30:58.12.
31:01Like that. And then, of course, the
31:02other value that this is missing is the
31:04subsurface scattering, because again, we
31:06overrode the the placeholder stuff that
31:09we had there before. So, in here, I'm
31:11going to sever this connection, and then
31:12I'm going to set this to one, and then
31:14I'll just make this, you know, whatever.
31:16And look, you can make this look like so
31:18buttery nice. Like look at how soft and
31:20fluffy this donut looks.
31:23How cool is that?
31:26Like that.
31:27Bring it back. Look at that. We've got
31:29real icing with the real crystals. We've
31:31got real donut that has been captured
31:34and projected onto our torus.
31:36Um and that's just two materials, which
31:38is really cool. The final object to
31:40texture is our mug, and I'm going to do
31:43that in the next part, because we need
31:45to go much deeper into UV unwrapping and
31:47show how to unwrap a custom object. So,
31:50join me in the next video.

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