16 Creating wall textures using UV projections — Transcript

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1. 0:07[music]
2. 0:14[music]
3. 0:15>> Hello and welcome back everyone to
4. 0:16Unreal Engine 5 beginners guide to
5. 0:18building an environment. In the last
6. 0:20lesson we left it off by getting
7. 0:21ourselves to a roof set up with the
8. 0:23texture and in this lesson we're going
9. 0:25to continue on setting up the surface
10. 0:27textures especially for the base of the
11. 0:30house. So let's get it into it and right
12. 0:32away think on the way we're going to set
13. 0:34it up. Actually, I'm just going to grab
14. 0:36all of these cubes and maybe instead of
15. 0:39just setting up the planes we might be
16. 0:40able to make use out of this mesh
17. 0:42itself. So let's go ahead and try making
18. 0:45use out of this mesh and
19. 0:48try to maybe get ourselves a single mesh
20. 0:52out of them. I'm going to duplicate it
21. 0:54just to put it on the side and see how
22. 0:56they look like.
23. 0:57Just going to drag this.
24. 0:59Oh, my I need to make a selection again.
25. 1:02There you go.
26. 1:03Just going to all day duplicate it and
27. 1:05see how they look like together.
28. 1:07And just by looking at it
29. 1:10that might actually work out pretty
30. 1:13well.
31. 1:14We have a bit of a gap here. I'm not
32. 1:16sure how that's going to turn out. We
33. 1:18might need to set them up to be a little
34. 1:20bit different.
35. 1:22So I'm actually just going to
36. 1:24grab both of them, delete it and
37. 1:26see how it's going to look like on this
38. 1:28end.
39. 1:30So I think
40. 1:31I'll try maybe moving it back just a
41. 1:33little bit like so. I think that's going
42. 1:35to look better.
43. 1:36And yeah, let's go ahead and actually
44. 1:39fix up this
45. 1:40gap a little bit so
46. 1:42the easiest way might be just to slide
47. 1:44it up back like so
48. 1:47and we're just going to make sure that
49. 1:49the edge is actually positioned at the
50. 1:50very corner and we're going to use a
51. 1:53sort of a wood pile or something to hide
52. 1:56the edges that away. Anyway, to break
53. 1:58the entire shape, so I'm actually just
54. 1:59going to grab this entire shape and just
55. 2:02kind of hold
56. 2:04this stretching bit and just
57. 2:07stretch it out. Of course, the snapping
58. 2:08tool, let's disable that. And now we're
59. 2:10just going to reposition this entire
60. 2:12section just like that.
61. 2:14So, I think
62. 2:16Yeah, let's go ahead and do that. Make
63. 2:17sure that
64. 2:19this edge is going to look quite nice.
65. 2:21Maybe we need to do it a little bit less
66. 2:23of that.
67. 2:25So, I'm just going to stretch it back
68. 2:26down.
69. 2:27Put it to the side like so, and I think
70. 2:30we're going to get a nice gap over here,
71. 2:32and we're going to get a nice gap over
72. 2:34here. I think that's going to look quite
73. 2:35nice. Maybe it's a little bit too much,
74. 2:37though.
75. 2:38Maybe it's not enough, actually. Let's
76. 2:40shrink it down even more.
77. 2:42Like so. Kind of want to have a bit of a
78. 2:45hanging area for the house, so it'll
79. 2:49break up the edges a little bit more for
80. 2:52our
81. 2:53environment. And I think that's going to
82. 2:55look quite nice. Just even more,
83. 2:56actually.
84. 2:58Like so.
85. 3:00Let's check this out now.
86. 3:02Of course, because we're scaling it in
87. 3:04from the center, we've got to move it a
88. 3:05little bit to the left as well, and that
89. 3:08might actually look quite nice.
90. 3:10I'm thinking that maybe this hedge needs
91. 3:12a little bit of a hanging area as well.
92. 3:14So, what I might do is I might just
93. 3:17squish down this section instead.
94. 3:20Just like that.
95. 3:22And get a nice hanging overhang like so.
96. 3:26So, all in all, I think this will look
97. 3:28much nicer. We might need to make a bit
98. 3:31of a hanging area over here.
99. 3:33So, just going to kind of squish this up
100. 3:35a little bit as well. Like so.
101. 3:39And yeah, I think this turned out quite
102. 3:40nice. Let's just make sure that this
103. 3:43edge is being Yeah, we need to make sure
104. 3:46we fix this up a little bit now as well.
105. 3:48So, just going to squish it down and
106. 3:50pull it to the side.
107. 3:52So, the corner is going to be positioned
108. 3:54to the side of this over here. So, the
109. 3:57reason we're doing it, I haven't
110. 3:58explained it properly, is because now we
111. 4:00can grab both of these and we're
112. 4:02actually going to be using modeling mode
113. 4:04again. And this time we're just going to
114. 4:06combine these two meshes together. So,
115. 4:08let's go into the modeling mode. Let's
116. 4:10go for the select mode tab and go into
117. 4:13modeling mode. And this time we're going
118. 4:14to drag it down until we find Yeah, once
119. 4:18we have both of these selected, it's
120. 4:19actually
121. 4:21because some of them are going to be
122. 4:23unselected and since we can't make use
123. 4:25out of them, so we just got to drag it
124. 4:27down until we see the mesh boolean. So,
125. 4:29with this selected,
126. 4:31we're going to make use out of it, which
127. 4:33allows us to sometimes cut off the
128. 4:34shapes and sometimes it allows us to get
129. 4:37some nicer results out of our shapes.
130. 4:39So, instead of the operation being A
131. 4:42minus B, we're going to make a union.
132. 4:46And what this will do is just it'll
133. 4:48combine both these meshes together. So,
134. 4:49if now hit accept, which by the way
135. 4:52should put it into our auto-generated
136. 4:54folder that is world relative. And now
137. 4:57if you hit accept, it should give us a
138. 5:00boolean static mesh. So, now this is
139. 5:03just one mesh.
140. 5:05And the reason we're doing it is because
141. 5:07we're now able to have a really nice UV
142. 5:10projection onto this entire environment.
143. 5:13And this way we'll be able to cover up
144. 5:15our material in a really nice and simple
145. 5:18way. So, let's go ahead and actually do
146. 5:20that. So, I'm thinking about just making
147. 5:24use out of UV projection first because
148. 5:27right away we're actually not going to
149. 5:29get the right kind of results. The
150. 5:31default UVs, I think right now are going
151. 5:33to be stretched out and although we
152. 5:34could do a similar kind of a way that we
153. 5:36did for the roofs, for this area because
154. 5:39right now we're having a single mesh, it
155. 5:41might be a little bit harder because the
156. 5:43ratio of where the stretched out areas
157. 5:45would be
158. 5:47they would have basically different
159. 5:48results and of course we don't want this
160. 5:49to have for our textures we don't want
161. 5:52them to look like they're just
162. 5:54completely stressed out. So, by going
163. 5:56all the way down to the modeling mode,
164. 5:58we're going to have a UV tab. And within
165. 6:01the UV tab, we're going to project our
166. 6:04UVs onto this static mesh. So, if we
167. 6:07select project, we have a couple of
168. 6:09options and the one that we want is
169. 6:11actually going to be a box version. So,
170. 6:14if we select this, it'll basically uh
171. 6:16project the best angles and give us the
172. 6:19nicest kind of results for those um
173. 6:22shapes because this is such a basic type
174. 6:24of a shape, all of the angles are in
175. 6:2690°. It's going to get us the best kind
176. 6:29of results for this particular shape.
177. 6:32So, by having it set as a default with
178. 6:35the default kind of values, I think it's
179. 6:37going to be fine. If we're having a box
180. 6:40that doesn't exactly fit our entire
181. 6:42shape, just make sure to hit with in the
182. 6:45actions tab, auto fill, and that'll just
183. 6:47bring it to a like a proper projection
184. 6:51box for our entire set.
185. 6:54So, now that we have it set up like
186. 6:56that, all we got to do is hit accept.
187. 6:58Oh, and also make sure that the material
188. 7:00mode is just
189. 7:02set to original. If you want to see how
190. 7:04the projection would turn out to be, we
191. 7:06can visualize using this material mode
192. 7:09by clicking on the checkerboard and
193. 7:11you'll get this sort of result, which
194. 7:13might be quite nice. And actually, that
195. 7:15was a good thing thing to do because I
196. 7:18see that the checkerboard is not
197. 7:20actually completely square. So, I'm
198. 7:23trying to figure out what is going on
199. 7:25with that. Maybe I'll
200. 7:27try playing around with the values.
201. 7:29Trying to figure out why that is the
202. 7:31case. Maybe Yes, let's go ahead. There
203. 7:34you go. By switching on the uniform
204. 7:37dimensions, it'll give us the right kind
205. 7:40of dimensions for this checkerboard
206. 7:43right away. It's one B stretching out
207. 7:44and as you can see the squares within
208. 7:46these textures are going to be set as
209. 7:48proper now. So that is going to be quite
210. 7:50nice. We can now finally hit accept and
211. 7:53that is going to apply the UV
212. 7:56coordinates onto this entire asset which
213. 7:59is going to be quite nice once we're
214. 8:01going to be starting to apply our
215. 8:03texture map. And so I think we can just
216. 8:06go back onto the select mode just to
217. 8:08hide away the toolbar kit and open up
218. 8:11the Quixel Bridge just like we did
219. 8:13previously. And within this we're going
220. 8:15to search for cracked
221. 8:18wooden planks.
222. 8:21Like so.
223. 8:23So this will give us a couple of options
224. 8:25to use and I'm thinking that maybe the
225. 8:28best choice would be to make use Yeah,
226. 8:32there you go. I already have this
227. 8:33downloaded. So this is the one that I
228. 8:35used and this is a real nice texture for
229. 8:38we want to get some additional detail
230. 8:40out of the size of the walls. So I
231. 8:42recommend you using this one as I really
232. 8:44like this one. So
233. 8:46yeah, make sure to download this one
234. 8:48then add it onto your project and once
235. 8:50you had it have it added you can close
236. 8:52this down. Make sure to go onto the
237. 8:54surface folder and then we'll have a
238. 8:56weathered wood slate Oh, sorry. Cracked
239. 8:59wooden planks folder and then once we
240. 9:01open up we get this material instance
241. 9:04and I think we can just use the default
242. 9:05one for now. Just drag it onto the asset
243. 9:08and see how this looks. And already it
244. 9:10is looking quite nice but it's too large
245. 9:14for this scale. So we're actually going
246. 9:16to
247. 9:17open this up or rather Yeah, let's just
248. 9:20in case let's make a duplicate out of
249. 9:22it. So control C control V and I'll
250. 9:23think I'll just leave this as is. Open
251. 9:26up the
252. 9:27original one since we already have this
253. 9:28assigned
254. 9:30and just going to lower this entire
255. 9:31window like so to the bottom and
256. 9:35enable the tiling offset and I'm
257. 9:37thinking about just
258. 9:39making it by 4 by 4 and seeing how this
259. 9:42looks like and it's actually a little
260. 9:43bit too much. So, 2 by 2 maybe? Yeah, I
261. 9:46think 2 by 2 is going to give us the
262. 9:48right kind of results. It's going to
263. 9:51look quite chunky and quite cracked but
264. 9:54at the same time it has that really nice
265. 9:57look for the house and I think that
266. 9:59definitely makes it look quite nice.
267. 10:02We might want to increase the ambient
268. 10:04occlusion strength though because right
269. 10:06now it looks quite flat as a texture.
270. 10:08So, what ambient occlusion strength does
271. 10:10is it simulates kind of the depth within
272. 10:12the PBR texture and it just kind of
273. 10:15gives a bit more shadows in the deeper
274. 10:17areas and it kind of works with the
275. 10:18normal maps and in regards to where uh
276. 10:22for example the light is hitting on an
277. 10:24object. So, by enabling the ambient
278. 10:27occlusion strength and setting this to a
279. 10:2910 for example just to exaggerate it a
280. 10:30little bit, we're going to get much
281. 10:32different results and actually it's a
282. 10:34little bit hard to see
283. 10:36but let's go ahead. It's quite obvious
284. 10:38in this one. So, let's just
285. 10:41get it to set it to a 10 and I'm trying
286. 10:43to figure out why it's not being
287. 10:45affected in this one over here. Hmm,
288. 10:48okay. It's a little bit hard to see.
289. 10:50Maybe it's because of the way the sun is
290. 10:51hitting
291. 10:52but I think for now we're going to be
292. 10:54done and uh in the next lesson we're
293. 10:57actually going to continue working I
294. 10:59think with
295. 11:01this section over here. We're going to
296. 11:03replace these areas and so yeah, thanks
297. 11:06so much for watching and I'll see you in
298. 11:07the next one.
299. 11:11>> [music]