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透视法关节的简化画法—人体艺术解剖 – 译学馆
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透视法关节的简化画法—人体艺术解剖

Simplifying Joints In Perspective - Human Anatomy

透视法的简化关节画法作业范例
让我们用一些真正的骨头做参考
Let’s use some real bones as reference.
最好是有全套的人体骨骼
It’s good to have a full sized human skeleton,
从真实骨头的投影中
one cast from real bones, so that you can
你可以把它和你的实际身体来比较
compare this to your actual body.
但有个问题是有些骨头是被铆接起来的
But the problem is that these thing are riveted
所以它们不能像人体骨骼一样移动
so that it doesn’t move like a human skeleton moves.
这里有一个铰链关节
There is a spool
它可以让这个脚进入背屈和前屈状态
in here that allows a foot to go into dorsiflexion and plantar flexion
我们在这里做不了因为它被粘住了
that we can’t do on this because it’s stucktogether.
不过我们在绘画或者做3D模型的时候
But we don’t have that limitation when
不会有这种限制
we draw and when we have the 3D model.
这是一个伸展的脚
This is an extended foot.
我喜欢从一个大致比例结构的草图开始
I like to begin with a rough something to contain the proportions.
如果你愿意花点时间在这上面是可以的
It’s okay if you take some time with that.
不过要让它看上去像三维的
But to make it look three dimensional,
即使是在画草图的时候
even when I do that rough something, I’m thinking
我在考虑它的高度 宽度和深度
of height, width, and depth.
然后我们把它们标为X Y和Z
And we letter those systems as X, Y, and Z.
利用这些坐标 我们可以勾勒出一个站着的不伸展的乐高形状的脚
And with just those coordinates, we can build a Lego foot standing non-extended. Which,
即便它看上去不太像一只脚
even if it doesn’t look like a foot,
它看上去是3D的
it looks 3D.
然后我们在这里画一个圆柱体
Then when we put this cylinder in there,
要顺着X轴 再画一个椭圆出来
it runs along X which helps us draw the ellipse,
要知道这个是脚的支点
and we know that that is the fulcrum of thefoot.
这意味着脚旋转的中心轴
That means it’s the center axle of the foot’srotation.
如果我从这边来画
If I draw it from the side,
你可以看到这边是我们的深度
you’ll see that we have the depth.
在Z轴线上
That’s the Z line.
高度是在Y轴线上
The height, that’s the Y line.
如果我们从X轴线直接往下看就是踝关节的地方
And then we’re looking straight down on X where that ankle joint is.
这时候我们的脚可以在这个铰链关节上做一个弧线样的活动
And when that foot moves on that hinge joint and makes an arc,
当它进入伸展状态的时候
goes into extension, we
我们可以看到脚的Z轴线不是完全位于这个Z轴上的
can see that Z will not line up on Z.
它有点向上的
It will aim up.
所以我们把这里修一下
So when we do this refined foot,
接下来我要雕琢一下这个平面
I’m going to chisel some of the plane so it looks a
让它看上去更像一个脚
little bit more like a foot.
它并不全都是角度的
It’s not all right angles.
这个大脚
And the big foot,
我们把它放在一个伸展的姿势
we’ll put into an extended position rather than a straight up and down
而不是直接上下的姿势
position.
所以让我们先来画一个踝骨
So let’s get the ankle bones.
这是胫骨和腓骨
That would be the tibia and the fibula.
然后往下
And they come down kind
有点像一个扳手夹紧距骨的铰链关节
of like a wrench to grip that spool bone of the talus.
不行 我得重新画一下这个
I’ll refine this a bit, badly.
不好意思
Sorry about that, I’m a bad influence
我经常被我的不佳草图线所影响
with my hunt and scratch lines.
我以后会在专门时间表达我的歉意
I’ll offer my excuse for it later.
但现在我只能说声对不起
Right now, I just apologize for it.
让我们把铰链关节放在这里
Let’s put that spool in there.
因为它是伸展的
Since it’s extended,
所以Y轴的线条并不是垂直上下的
the Y lines won’t point straight up and down.
它们是向着这个角度的
They’ll aim off in that direction.
然后画出十字型的轮廓线来勾勒出形状
And cross contours make us sure of the form,
在这里我们还没有画出所有正确的角度
and we don’t have all right angles there.
所以我们来画一些有斜面角度的线
We’ve got some beveled, slanted lines.
在我把它变成一个令人讨厌的东西前
Before I turn this into an abomination,
被你们看到我这个
it is so embarrassing to be seen in the privacy
糊里糊涂的私人作品真的很尴尬
of one’s hesitations.
我希望我能更快一些
I wish we could just speed it up.
继续……好了
Segue into the… There,
这样好多了
that’s better.
现在这个已经
There we are,
可以出来见人了
all dressed up for the debut and no embarrassing personal scratching.
非常感谢 马歇尔
Thank you very much, Marshall!
这是一个很棒的演示
That was a great little demo.
有关马歇尔的其它一些关节作业演示
Marshall’s other demos for the Joint assignment are
也可以在解剖学课程的精选部分获得
in the Premium section of the Anatomy Course.
如果你想看更多
If you’d like to see
有关马歇尔中用透视原理来构建这些关节的视频
Marshall construct these joints while explaining some perspective principles
请到proko.com/anatomy访问所有其它的解剖学精选内容
plus all the other Anatomy premium contentgo to proko.com/anatomy.

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视频来源

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