hey everyone Josh powers here with quick 嘿大家Josh很快就在这里
cyl and in this breakdown I'll be 我会在这个崩溃中
walking you through some of the 带你走过一些
techniques I use to construct this 我用来构建这个技术
post-apocalyptic suburban street scene 后世界末日的郊区街景
the scene is almost entirely made up of 场景几乎全部由
mega scans assets that I not only mega扫描资产，我不仅
exported straight from the library but 直接从图书馆出口但是
also leveraged inside quick so mixer to 内部也快速利用混音器
create unique environment textures for 为...创建独特的环境纹理
the street and sidewalk and though 街道和人行道虽然
creating such a detailed environment is 创造这样一个详细的环境是
always a challenge the task was much 总是挑战任务的重要性
easier to achieve thanks to the gigantic 由于巨大的变化，更容易实现
list of assets available on the mega 巨型资产清单
scans library which allowed me to focus 扫描图书馆，让我专注
my efforts on the environment art itself 我对环境艺术本身的努力
and not the monotonous technical work 而不是单调的技术工作
also be sure to join us on the 23rd of 也一定要加入我们23日
this month at 7 p.m. CET for a live 这个月中欧时间晚上7点开始现场直播
stream where I'll be going over some 在我要去的地方
additional techniques in greater depth 更深入的其他技术
and also answering any questions you 并回答你的任何问题
might have and on that note let's jump 可能有，并在那个说明让我们跳
right in 就在
ordinarily I would probably build this 通常我可能会建立这个
scene with modular assets that I could 我可以使用模块化资产的场景
snap together to lay out a larger level 合在一起布置更大的水平
however since the scope of this level is 但是因为这个级别的范围是
fairly limited I built out the street 相当有限的我建在街上
and sidewalks as unique meshes with 和人行道作为独特的网格
pretty basic you v's 非常基本的你v
okay I've imported my geometry and 好吧我已经导入了我的几何体
unreal but now I need some asphalt 不真实，但现在我需要一些沥青
materials to apply to the street there 材料适用于那里的街道
are numerous asphalt materials and 有很多沥青材料和
decals to choose from in the mega scans 贴花可在大型扫描中选择
library but I wanted to add some custom 库但我想添加一些自定义
details to these textures so I decided 细节到这些纹理所以我决定
to take the asphalt scans and load them 进行沥青扫描并加载它们
up in the mixer to create my own 在混音器中创建我自己的
surfaces the base asphalt covers most of 表面基础沥青覆盖了大部分
the scene so I wanted something that was 现场，所以我想要的东西
a little weathered but didn't have a lot 有点风化，但没有很多
of unique details that would become 将成为独特的细节
obviously repeated throughout the scene 整个场景显然都在重复
I then duplicated the mix and made a 然后我复制混合物并制作了一个
couple variants of the texture 几种变体的纹理
increasing the damage and adding more 增加伤害并增加更多
grime by blending an additional scan 通过混合额外的扫描污垢
data and adding decals once I finished I 数据并在我完成后添加贴花
could either export the texture Maps 可以导出纹理贴图
through the export tab or as Viktor 通过导出选项卡或Viktor
demonstrated in the dust to breakdown 在尘埃中证明了崩溃
video which if you haven't seen it yet I 视频，如果你还没有看到它我
highly recommend you watch it I can save 强烈建议你看它我可以保存
the mix to mega scans library and export 混合到大型扫描库和导出
straight into unreal from bridge 从桥上直接变成虚幻的
to do this I'll go into bridge and click 要做到这一点，我将进入桥梁并单击
on the mixer category where I'll find 在我会找到的混音器类别
the three asphalt mixes I just saved out 我刚刚救了三个沥青混合料
from mixer if I hold down control I can 从混音器，如果我按住控制，我可以
select all three of them and export them 选择所有这三个并导出它们
at once back in unreal I now have a 我现在有了一个不真实的回归
custom surface folder with all three of 自定义表面文件夹与所有三个
the materials I just imported from 我刚从中导入的材料
bridge I'll copy each of the materials 桥我会复制每一种材料
into the route custom surface folder now 现在进入路线自定义表面文件夹
I could manually make a vertex blending 我可以手动进行顶点混合
material myself but thanks to the mega 材料自己，但感谢巨型
scans live link I don't have to all I 扫描实时链接我不需要所有我
need to do is open up live link and then 需要做的是打开实时链接然后
I'll select the three asphalt materials 我会选择三种沥青材料
and then I'll click create material 然后我会点击创建素材
blend on live link if I look in a folder 如果我查看文件夹，请混合实时链接
called blend underscore materials I see 我看到称为混合下划线材料
that I have a blend material 我有一个混合材料
automatically generated for me all I 我自动为我生成
have to do now is drag and drop it onto 现在要做的就是拖放它
the road and I'm ready to paint with the 这条路，我准备好了
vertex painting tool selected I switch 选择顶点绘画工具我切换
between the r and g channels to paint 在r和g通道之间绘画
down the different asphalt materials i 不同的沥青材料我
just imported each color channel reveals 刚导入的每个颜色通道都显示出
a texture set based on how they're 基于它们如何设置的纹理
assigned in the material and you can 在材料中分配，你可以
even paint down puddles using the blue 甚至用蓝色涂抹水坑
channel however in this case i chose to 然而在这种情况下，我选择了
implement the puddles through mixers so 通过搅拌机实现水坑
i don't use the blue channel as i said 我没有像我说的那样使用蓝色通道
before i'm primarily relying on the base 在我主要依靠基地之前
texture and then using the secondary and 纹理，然后使用辅助和
tertiary texture sets sporadically to 三级纹理偶尔设置
add some visual interest and textural 添加一些视觉兴趣和纹理
breakup to the street this is looking 分手到街上看
pretty good but it could definitely use 相当不错，但绝对可以使用
a lot more details so now i'm ready to 更多细节所以我现在准备好了
start adding some decals decals are a 开始添加一些贴花贴花是一个
simple but powerful way to add a 添加一个简单但功能强大的方法
tremendous amount of depth and detail to 巨大的深度和细节
any environment it's also perfect for 任何环境，它也是完美的
hiding repetitive features in your 隐藏重复的功能
textures and it will help make every 纹理，它将有助于使每一个
pixel in the environment feel unique I 像素在环境中感觉独特我
like to layer decals which I can do by 喜欢贴花贴花，我可以做
adjusting the sort order so I can 我可以调整排序顺序
quickly construct new unique details for 快速构建新的独特细节
a higher level of visual fidelity as 更高水平的视觉保真度
well as help me get the most mileage out 以及帮助我​​获得最大的里程数
of each decal for example by placing 例如，通过放置每个贴花
some grass Tufts just over this crack 一些草丛就在这个裂缝上
I'm not only adding a subtle depth of 我不仅添加了一个微妙的深度
realism to the shot but I'm also 射击的现实主义，但我也是
disguising how often I use this same 伪装我经常使用同样的东西
crack decal and other parts of the scene 裂缝贴花和场景的其他部分
and of course decals can also be used in 当然贴花也可用于
much more subtle ways such as asphalt 更多微妙的方式，如沥青
debris dirt 碎屑污垢
grime and leaves which will allow you to 污垢和叶子，这将允许你
really transform the look and feel of 真正改变了外观和感觉
your scene after following the same 你的场景跟着一样
process for the sidewalks the scene is 现场人行道的过程
really starting to come together 真的开始走到一起了
so now it's time to drop in some props I 所以现在是时候放下一些道具了
jump back into Bridge and select 跳回Bridge并选择
multiple props by holding ctrl and then 通过按住ctrl然后再多个道具
export them into unreal with a single 用单一的方式将它们导出为虚幻
click 点击
I start off by placing down some of the 我首先放下一些
larger prop assets like jersey barriers 更大的支柱资产，如球衣障碍
trees road signs barrels etc 树木路标桶等
I then move down to some smaller props 然后我转向一些较小的道具
such as trash food containers and broken 如垃圾食品容器和破碎
masonry 石工
here I'm layering decals with props to 在这里，我用道具分层贴花
really help blend this asphalt rubble 真的有助于混合这种沥青瓦砾
pile into the scene because the place 因为这个地方堆成了场景
decal will bleed onto the rubble 贴花会流到废墟上
geometry 几何
it really helps soften the transition 它确实有助于缓和转型
from the prop to the ground as I 从我的支柱到地面
mentioned with the decals when you layer 分层时用贴花提到
assets you can get some really 您可以获得一些资产
great-looking results okay so the scene 看起来很棒的结果还好现场
is really coming along but it's still 真的来了，但它仍然存在
feeling a little stale and one of the 感觉有点陈旧和其中一个
reasons for that is because there's a 原因是因为有一个
lack of vegetation in the scene in any 任何场景都缺乏植被
post civilized environment we would 我们会发布文明环境
expect to see nature reclaiming anything 期待看到大自然回收任何东西
constructed by humans to help me achieve 由人类构建来帮助我实现
this look I heavily rely on unreal 这看起来我非常依赖虚幻
scatter tool also known as the foliage 散射工具也称为叶子
tool back in bridge I have quite a large 工具回到桥我有相当大的
list of 3d plants that I can choose from 我可以选择的3d植物列表
that will fit this scene nicely I'll 我会很好地适应这个场景
again select multiple assets by holding 再次选择多个资产
down ctrl and then batch export them 按下ctrl然后批量导出它们
into unreal I can actually have live 变得不真实我真的可以活着
link automatically propagate these plant 链接自动传播这些植物
assets into the foliage tool for me just 资产进入树叶工具对我而言
by checking these settings here but I 通过检查这些设置，但我
want to start out with just a few 想要从一些开始
specific assets so I left that off this 具体的资产，所以我离开了这个
time I manually dragged those assets 我手动拖动那些资产的时间
into the foliage tool window and then 进入树叶工具窗口然后
adjust some of the settings so that it 调整一些设置以便它
can start painting them down in the 可以开始画它们了
grassy areas next to the sidewalk I then 我在人行道旁边的草地区
take a few more plants such as some dead 多带一些植物，比如死了一些
grass clovers and some weeds and more 草三叶草和一些杂草等
sparsely populated the area to mimic 这个地区人口稀少，模仿
seasonal die off and overgrowth of other 季节性死亡和其他的过度生长
non Graf's vegetation this not only adds 非Graf的植被不仅增加了
more interest to the lawn from an 对草坪的兴趣更大
aesthetic standpoint but also adds 审美立场但也增加了
another layer of realism I like to place 我喜欢放置另一层现实主义
some of the plants by hand particularly 特别是一些手工植物
in areas where I need to be mindful of 在我需要注意的领域
the composition of the camera shot or in 镜头的组成或拍摄
places where I need specific scale and 我需要特定规模的地方
rotation to match up with the 旋转以匹配
environment such as grassy decals cracks 环境如草地贴花裂缝
and the curb so the scene is really 和路边所以现场真的
shaping up but I need to make sure that 塑造但我需要确保
I have sufficient detail on the ground 我有足够的细节
especially for some of the closer camera 特别是对于一些更近的​​相机
angles I have I'll pop back into the 我有的角度我会回到原点
library and grab some small rocks and 图书馆，并抓住一些小石头和
pebbles to spread around the scene 鹅卵石在场景中传播
because these will be no larger than a 因为这些不会比a大
couple of inches in world space and in 几英寸的世界空间和在
some cases even smaller than that I can 有些情况比我还要小
utilize a really handy feature in bridge 利用桥中非常方便的功能
to set the LOD of the asset to four or 将资产的LOD设置为4或
five since they won't need to be too 五，因为他们不需要太过
detailed 详细
this will save me a lot of time and 这将节省我很多时间
headache when it comes to performance 在性能方面令人头疼
and it's all done automatically with 这一切都是自动完成的
live link okay with the rocks loaded up 直播链接好了，岩石装满了
I'll do a quick pass with my scale set a 我会用我的比例设定快速通过
bit larger and the density a bit lower 比特大，密度稍低
once I'm good with that I scale it down 一旦我很好，我就把它缩小
a little as well as increase the density 一点点，以及增加密度
and finally I scale it down even further 最后我将它进一步缩小
and make the density quite high and 并使密度相当高
begin painting and erasing the pebbles 开始绘画和擦除鹅卵石
to try and replicate a lot of the subtle 尝试复制很多微妙的东西
detail we see on the ground in the real 我们在真实中看到的细节
world though I'm painting all around the 世界虽然我在周围画画
shot I try to keep the bulk of the 拍摄我试图保持大部分
brushstrokes close to the camera or 笔触靠近相机或
around contrasting surfaces like garbage 围绕对比的表面，如垃圾
props so that I'm not wasting Polly's on 道具，这样我就不会浪费波莉了
pebbles that will blend in with the 鹅卵石将融入其中
surface right behind it I then do a 表面就在它后面然后我做了一个
quick pass with additional detail props 快速通过额外的细节道具
such as small branches and cigarette 比如小枝和香烟
butts though quality textures and decals 虽然质量纹理和贴花，但对接
can really take your scene far there's 真的可以把你的场景带到那里
no substitute for 3d geometry especially 尤其不能替代3d几何
on a low angle up close shot like this 在这样一个低角度近距离拍摄
where the effects of a normal map really 真正的地图的影响真的
start to break down the reflected 开始打破反映
lighting in addition to the screen space 照明除了屏幕空间
ambient occlusion and contact shadows 环境遮挡和接触阴影
that geometry provides adds a boost of 几何提供增加了
realism that simply is impossible to 现实主义根本不可能
achieve with textures alone though we 虽然我们只用纹理来实现
only covered a few techniques in this 只介绍了一些技巧
video the rest of the scene was built 视频其余部分已构建完成
using the same methods we just went over 使用相同的方法，我们刚刚过去
and as you can see in the time-lapse 正如你在延时中看到的那样
footage I was able to take a very 我能够拍摄的镜头
simplistic block out consisting of just 简单的阻止由刚刚组成
a street and sidewalk and transform it 街道和人行道并改造它
into a highly detailed believable 变得非常详细可信
environment that's running at a smooth 运行平稳的环境
frame rate even on an older PC and 帧率甚至在较旧的PC和
thanks to the mega scans library along 感谢大型扫描库
with bridge mixer and the live link 使用桥式混音器和实时链接
plug-in getting the content I needed to 插件获取我需要的内容
assemble this level inside Unreal was 在Unreal里面组装这个级别
quick and painless 快速无痛
being able to import ready-to-use assets 能够导入现成资产
with just a few clicks lets me focus 只需点击几下，我就可以专注
more on the artistic side of the scene 更多的是在艺术方面
and less on the tedious technical tasks 而不是繁琐的技术任务
I really hope you enjoyed this video and 我真的希望你喜欢这个视频和
that it was helpful for you in some way 它在某种程度上对你有帮助
don't forget to tune in on the 23rd at 7 不要忘记在23日7点收听
p.m. CET for the live stream and if you 下午CET直播，如果你
have any questions be sure to leave them 有任何问题一定要留下他们
in the comments below and I'll try to 在下面的评论中，我会尝试
answer them in the live stream thanks so 在实况流中回答他们，谢谢
much for tuning in and we'll see you 很多调整，我们会看到你
next time 下次