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如何绘制腹肌 – 外形和动态 – 译学馆
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如何绘制腹肌 - 外形和动态

How to Draw Abs - Form and Motion

大家好 我是史丹·菠萝 欢迎观看菠萝系列视频
Hello I’m Stan Prokopenko. Welcome to Proko.
这是如何画腹肌课的第二部分
This is Part 2 of Drawing the Abs.
请确保你看过第一部分:腹肌的解剖结构
Make sure to watch Part 1 where we learn about the anatomical structure of the abs.
现在 让我们来谈谈腹肌的外形
Now let’s move on to Form.
外形
Form
一个经典理想化的腹肌剖面看起来像字母B
A classic idealization of the abs in profile resembles the letter B.
它从一个向上的平面开始在肋骨之上向外凸出
It starts with an upward plane bulging outward over the ribs.
然后它会反向向内弯曲直到40盎司处
Then it curves back in until it hits the 40 oz.
有时候你会看到这里是一个垂直的平面
Sometimes you’ll see a flatter vertical plane here,
有时候这个平面会向内弯曲
sometimes it will keep curving inward,
但通常情况下 它在40盎司向外凸起之前就会凹陷
but usually it will be recessed in someway before the 40 oz bulges outward
然后朝向盆骨处继续凸起
and then back in toward pelvis.
有时候不是B的形状 而是C的形状
Sometimes instead of a B, you’ll see the letter C.
一条从胸腔到盆骨的平滑曲线
One flowing curve from the rib cage to the pelvis.
它的形状会受到遗传 生活方式的影响而改变
The shape will change depending on genetics, lifestyle,
或者因一个人弯曲或伸展身体而改变
or whether the person is flexing or relaxing.
画女人的时候 你可以在腹部画一个小提琴的形状
When drawing females, you can play up a violin shape in the abdomen,
让所有的过渡 都保持优美和圆滑
keeping all of the transitions graceful and round.
当然 你在姿势放松的女性身上不太可能看到清晰的六块腹肌
Also, on females you’re much less likely to see a clear 6-pack in a relaxed pose.
不绝对 只是不太可能
It’s possible, just less likely.
之前我曾经介绍过 但我还想提醒你关于
I touched on it before, but I want to remind you about
腹肌会怎样影响胸廓弓的外观
how the abs modify the appearance of the thoracic arch.
在我继续说之前 我想阐明我怎样定义这三个词
And before I continue, I want to clarify how I use these 3 words.
骨架弓是由胸腔的的骨头和软骨构成的的形状
Skeletal Arch is the shape created by the bones and cartilage of the rib cage.
希腊弓是由骨头和在顶端的一对腹肌构成的形状
Greek Arch is the shape created by the bones and top pair of abs.
一会儿我再解释它
I’ll explain this in a second.
胸廓弓是两只之一的任何一个
Thoracic Arch is either one of these
就是那个出现在你正在画的身体的表面的
whichever is seen on the surface of the body you’re drawing.
好了 接下来说说希腊弓
Ok, let’s talk about the Greek Arch.
最上方的腹肌位于骨架弓上方和下方之间
The top pair of abs starts above the skeletal arch and ends below.
所以 顶部腹肌的外形会覆盖住胸腔的上部边界处
So, the form of this top pair will cover the top border of the rib cage.
它将尖锐的骨架弓软化成位置更低 形状更圆的希腊弓
It softens the sharp skeletal arch of the ribs into the slightly lower and rounder greek arch.
这有一个很好的骨架弓例子 这也有一个很好的希腊弓例子
Here’s a great example of a skeletal arch. And here’s an example of a greek arch.
如果你在一个希腊雕塑上看到这条弧线
When you see this curve on a greek sculpture,
这其实是顶部腹肌的底部边缘线
that’s the bottom border of the top pair of abs,
而不是胸廓的边缘线
not the border of the rib cage.
能证明这点的线索是这个剑状软骨的位置
The main clue that gives this away is the location of the xiphoid.
骨骼上的剑突位于胸骨下方
On the skeleton the xiphoid is located below the sternum
以及骨架弓的拐角处的下方
and below the corner of the skeletal arch.
所以它才能定位骨架弓 在这个雕塑上的位置
That would place the skeletal arch here on this sculpture.
这条线肯定是腹肌
This line has to be the abs.
动态
Motion
当然 身体的扭曲和弯曲也会影响腹肌的外形
Of course, how the body is twisted and bent will affect the form of the abs as well.
当你向前弯曲身体时 腹肌会缩短和膨胀
When you bend forward by flexing the abs, they will shorten and inflate.
这是它在模特身上的样子
Here it is on a model.
重力可以让腹肌继续弯曲 然后折叠的像一台手风琴一样
Allowing gravity to continue the forward bend farther bunches the abs like an accordion.
随着弯曲的程度加深 皮肤将开始折叠
Depending on how deep the bend is, the skin will start to fold
并将腹肌的外形覆盖在肚脐的水平线附近
and cover up the forms of the abs around the level of the belly button.
在拉伸时 肌肉和脂肪伸展开来
During extension, the muscle and fat stretch and flatten out.
腹肌的外形变薄并裹在胸腔上
The form of the abs is thinned and wrapped over the rib cage,
让像骨架弓这样的本就标志性的骨头变得更加明显
causing bony landmarks like the skeletal arch to become more visible.
横向卷曲不太会影响腹肌的外形 只会让它们弯曲一点
Lateral bending won’t affect the abs much, just curving them a bit.
最后 吸气到肺部会使腹部凸出
Finally, inhaling fills the lungs causing the abdomen to protrude.
呼气使腹部变瘦 但是在健身房自拍过得人都知道
Exhaling slims the abdomen, but anyone who’s ever taken a gym selfie knows that.
不只是呼气可以让腰部变瘦
It’s not just exhaling that slims the waist.
当你吸你的胃时
When you suck in your stomach,
通常能看到横腹肌
that’s mostly the transversus abdominis muscle,
我们在下一个集“肚脐及其他”里会讲到它
which we’ll go over in the premium episode ‘Belly Buttons and More’.
作业
Assignment
你这周的作业就是给不同姿势的模特的画一些速写
Your assignment for this week is to do some quick sketches of models in various poses.
一定要注意腹肌的动态和外形
Make sure to focus on the motion and form of the abs.
有时候为了更好表现出外形
Sometimes to show the forms,
你可以给画上一些调子
it might make sense to indicate some tone.
但别上太多
But don’t go overboard.
这项作业的目的不是为了花费数小时来刻画一个形态
The assignment is not to spend hours rendering a single pose.
而是为了通过速写来学习
It’s to do a lot of quick studies.
有时候 用正确的形状和边缘线标记出暗部
Sometimes an indication of a core shadow with the right shape and edge
就足以表示外形了
will be enough to indicate the form.
如果你才刚学习上调子 请跳过这个练习 因为它会干扰你
If you’re new to shading, skip it for this exercise since it will be a distraction.
其实 我们还为那些想学更多东西的同学准备了一个付费部分
So, we have a premium section for students that want to learn more.
这个付费部分里包含了这个主题的拓展课程
The premium section has extended lessons with more information about the topic.
以及一些额外的绘画示范
It also has additional drawing demonstrations.
如果你完成了每节课的作业
If you do the assignments for each lesson,
这些示范可以作为作业的答案
these demos serve as the answers for the assignment,
供你检查作业
so you can check your work.
你还可以下载每节课的PDF电子书文件
There’s an ebook version of each lesson that you can download as a PDF.
打印或在保存在你的设备上以便快速浏览复习
Print them out or keep them on your device so you can quickly review the lessons.
最后一点 这个付费部分里还含3D模型
And finally the Premium section has 3d models
你可以旋转模型 学习 练习不同角度的绘画
that you can spin around, study, and draw from any angle.
如果你不希望你的画看起来是这样的
If you don’t want your drawings to look like this,
就去登录 proko.com/anatomy吧
go to proko.com/anatomy.
如果你喜欢这个视频 不要自私哦
If you like this video, don’t be all selfish.
分享给你的朋友吧 如果你想看下期视频的更新
Share it with your friends, and if you want to be updated about new videos.
点击这个订阅按钮或者去proko.com/subscribe订阅吧
Click this button or go to proko.com/subscribe

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视频概述

本片将讲解腹肌外形的形成原因,并分析不同动态。

听录译者

收集自网络

翻译译者

萨默之光

审核员

知易行难

视频来源

https://www.youtube.com/watch?v=OkXqYwonses

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