Name: 如何畫出一個球體！ (How to Draw a Sphere)
Uploaded: 2026-03-14T09:02:46.000Z
Duration: 8 min 31 s

現在進行式

Hi there, Matt here with the virtualinstructor.com and in this lesson, we're going to be drawing a sphere.

哈囉，我是 Matt，來自 virtualinstructor.com，這堂課我們要來畫一個圓形。

to 不定詞

Aren't there more interesting things out there to draw other than a sphere?

除了畫圓形，難道沒有更有趣的東西可以畫嗎？

Of course there are, but we draw a sphere as a practical drawing exercise.

當然有，但我們畫圓形是為了做一個實用的繪畫練習。

And this exercise is important for a couple of reasons.

One, spheres typically have a full range of value associated with them.

第一，圓形通常會有完整的色調範圍。

This means they have the darkest darks and the lightest lights and all the middle values in between.

這表示它有最深的暗部、最亮的高光，以及中間所有的中間調。

So we can practice seeing those in our reference and putting those in our drawing.

所以我們可以練習在參考圖裡看到這些，並把它們畫出來。

Now, the second practical reason why we draw a sphere is that those locations of value are easily recognized.

好，我們畫圓形的第二個實用原因是，這些色調的位置很容易辨識。

And these locations are very important in creating the illusion of light in a drawing and the illusion of form.

而且這些位置在創造畫作中的光影錯覺和形體錯覺上非常重要。

So we can practice locating those locations of value.

所以我們可以練習找出這些色調的位置。

And we can also practice creating that full range of value by drawing a sphere.

我們也可以透過畫一個圓形來練習創造完整的色調範圍。

And when we nail that down and we do a good job with this, then we can move on to all of those exciting things out there to draw in the world besides a sphere.

當我們掌握了這一點，並且做得很好，就可以開始畫世界上除了圓形之外的各種令人興奮的東西了。

So grab that pencil and let's get ready to draw a sphere.

所以拿起你的鉛筆，準備好畫個圓形吧。

I bet you'll find that this exercise is a little bit more interesting and more challenging than you might expect.

我打賭你會發現這個練習比你預期的更有趣、更有挑戰性。

We've got the darkest darks and we've got the lightest lights.

我們有最深的暗部，也有最亮的高光。

It may be hard to see here in the video, but

雖然在這裡影片裡可能不太清楚，

there is an area of highlight that is pretty much white.

但有一個高光區域幾乎是全白的。

In fact, we're going to try to make it white in our drawing.

事實上，我們在畫裡會試著把它畫成白色。

It's not completely white, but it's white enough to leave white.

它不是完全的白色，但已經足夠留白了。

And then we have that full gradation of value progressively getting darker as we go over to this area.

然後我們有完整的色調漸變，越往這個區域顏色越深。

Now, another reason why spheres are so good to explain value and the importance of value is because there are very defined areas on the sphere where light is hitting it, which is leading to the illusion of form.

現在，球體之所以很適合用來解釋色調和色調的重要性，另一個原因是因為球體上有明顯被光照射到的區域，這就產生了形體的錯覺。

Where we have an area up here which is the highlight.

Then we have this middle area right here, which is called the midtone.

然後我們這裡中間有一個區域，叫做中間調。

And then we have this darker area that exists on the object, which is called core shadow.

接著物體上還有一個較暗的區域，叫做暗部。

And then we have this area behind it, which is called cast shadow.

然後它後面還有一個區域，叫做投影。

And light actually comes down in this case and bounces off of the surface of the table and bounces back up here.

而且光線實際上是從上面下來，然後反射到桌子的表面，再反射上來這裡。

And you can see how this area right here is lighter in value, and

你可以看到這裡的色調比較亮，

So we've Got all of these things going on on a sphere.

所以我們在球體上可以看到所有這些東西。

And it's very easy to explain what things are when we're working with a curved object like this.

當我們處理像這樣的曲面物體時，很容易解釋這些東西是什麼。

So we're going to start by drawing a circle.

所以我們要從畫一個圓形開始。

I'm going to start by kind of locking my wrist and holding the pencil a couple of inches away from the paper.

我會先固定手腕，然後把鉛筆離紙面幾英吋。

And then I'm going to rotate my shoulder.

It may look like I'm rotating my wrist, but I'm not.

看起來好像是我在轉動手腕，但其實不是。

If I pull it up like this, my wrist is nice and tight and my palm is just rolling over the surface of the paper.

如果我這樣把它拉上來，我的手腕會很緊，我的手掌只是在紙面上滾動。

And I'm going to start making several circles.

Then I'm gonna slowly bring my pencil down to the surface.

接著我會慢慢地把鉛筆移到紙面上。

It's not a perfect science and you're not gonna get a perfect circle every time.

這不是一門精確的科學，你不可能每次都畫出完美的圓形。

你可以畫出一個很不錯的圓形。

And I drew several lines here and you know, the reason why I like to draw several lines is you have a better chance of getting the correct line when you draw several of them.

然後我這裡畫了好幾條線，你知道，我喜歡畫好幾條線的原因是，當你畫好幾條線時，你會有比較大的機會畫出正確的線條。

And then you can kind of erase and remove extra lines.

然後你可以稍微擦掉多餘的線條。

Now I'm going to go ahead and give an indication of the cast shadow.

現在我要來畫出投射陰影的訓示。

So I'm going to go ahead and draw an ellipse and I'll draw several lines for that as well.

所以我要畫一個橢圓形，我也會為它畫好幾條線。

Obviously, our light source is originating from the upper left hand corner up here.

很明顯，我們的光源是來自左上角這裡。

Alright, so we want to be sure that we're creating the illusion of light and value is what's going to create that illusion.

好，所以我們要確保我們創造出光影的錯覺，而色調就是能創造出這個錯覺的關鍵。

It's not only going to create the illusion of light, but

it's also going to create the illusion that it's a round spherical ball sitting on the surface.

還會創造出它是一個圓形球體坐在表面上的錯覺。

So since we're working on white paper, we're going to be adding the darker value.

所以既然我們是在白紙上作畫，我們要開始添加較深的色調。

So it only makes sense to start in the areas that are the darkest.

所以從最深的區域開始是最合理的。

Now we're starting with values that are a little bit lighter than what they actually are.

現在我們要開始畫比實際顏色稍微淺一點的色調。

In our reference here, we're going to progressively get darker with these applications.

在我們的參考圖中，我們會一層一層地加深這些筆觸。

Of course, it's always better to start light and go dark rather than to go too dark too quickly.

當然，從淺色開始畫到深色，總是比太快畫得太深來得好。

I'm kind of changing directions here with my strokes here and there just to try to make it as smooth and even of an application as possible.

我在這裡的筆觸會稍微改變方向，試著讓它盡可能平滑均勻。

We've got to learn to recognize those very subtle changes in value where it gets very, very light in areas, but

我們必須學會辨識那些非常細微的色調變化，在某些區域會變得非常、非常淺，但是

Alright, now let's start pushing some of these values darker.

好的，現在我們要開始把一些色調畫得更深一點。

Now that we've got some of our initial applications on here, we can get a little Bit darker.

既然我們已經在這裡畫了一些初步的筆觸，我們可以再畫得深一點。

Now to make these darker values, we'll switch over to the 2B pencil, which is a little bit softer.

為了畫出這些更深的色調，我們要換成 2B 鉛筆，它會比較軟一點。

And, and for that reason it's going to be a little bit darker than the HB pencil.

也因為這樣，它會比 HB 鉛筆顏色再深一點。

You just lift some of the value off without really affecting the texture.

你可以把一些色調擦掉，而不會真的影響到紋理。

I'm going to switch over to the 4B pencil now and we're going to go ahead and make the area of core shadow pretty dark.

我現在要換成 4B 鉛筆，我們要把暗部畫得很深。

Now in the area of cast shadow, a lot of times that's the darkest area and sometimes it's, sometimes it is the second darkest.

在投影的區域，很多時候那裡是最深的，有時候，有時候它是第二深的。

Sometimes the area, of course, shadow is actually the darkest, but

有時候暗部區域，其實是最深的，但是

in this case we know that this area is the darkest.

在這種情況下，我們知道這個區域是最深的。

So just to save time, I'm going to go ahead and continue with the 4B pencil.

所以為了節省時間，我會繼續使用 4B 鉛筆。

Now you might notice here that we're not using any blending tools at all.

現在你可能會注意到，我們根本沒有使用任何塗抹工具。

We're just relying on the pressure that we place on the pencil to create the gradations of value.

我們只依靠鉛筆的壓力來創造色調漸變。

Alright, now using the kneaded eraser, I'm just going to kind of clean up that edge a little bit.

好的，現在我用可塑橡皮擦，稍微把那個邊緣清理一下。

Alright, now I'm going to put a little bit of value behind here just so we can see the contrast.

好的，現在我會在後面加一點色調，這樣我們就能看到對比。

You can see that the object is sitting on a table here.

你可以看到這個物體是放在桌子上的。

So I'm just going to go ahead and give an indication of that as well.

And then we can put a little bit of indication of the value behind it so that these highlighted areas stand out a little bit more.

然後我們可以在後面加一點示意，讓這些高光區域更突出一些。

The way we perceive value, after all, is all determined by the relationships of the value around it.

我們看待色調的方式，終究是取決於周圍色調的關係。

So by adding this darker value in the background, we better understand the highlights and midtones.

所以透過在背景加入較深的色調，我們能更瞭解高光和中間調。

So now we have our locations of value in place.

現在我們已經把色調的位置都設定好了。

We have the area of cast shadow underneath the sphere.

我們有球體下方投射的陰影區域。

We have the area of coarse shadow where it's the darkest value on the object.

我們有粗糙陰影區域，也就是物體上最深的色調。

And then we have the reflected highlight where light is bouncing off of the surface of the table back onto the underside of the sphere.

然後我們有反射高光，光線從桌子表面反射到球體下方。

And then we have the area of midtone or middle value around the center portion of the sphere.

然後我們有球體中間部分的中間調或中間色調區域。

And then of course we have the area where the light is hitting the strongest, which of course is the highlight.

然後當然，我們有光線最強烈照射的區域，也就是高光。

And now our drawing of a sphere is complete.

現在我們的球體繪圖就完成了。

Thank you so much for watching this video.

If you enjoyed it and you were able to pick up a thing or two, make sure that you subscribe to the channel.

如果你喜歡這個影片，並且學到了一些東西，記得訂閱我們的頻道喔。

And if you want to check out all the resources associated with this lesson, like the photo reference that I worked from, just click on the link right up here and it will take you to that page.

如果你想看看這個課程相關的所有資源，像是我們一開始用的參考圖，就點擊這裡的連結，它會帶你到那個頁面。

If you're ready to learn more about drawing and painting, then why not check out our comprehensive membership program?

如果你準備好學習更多關於繪畫和上色的知識，為什麼不看看我們完整的會員計畫呢？

There you'll find comprehensive video courses, weekly live lessons, ebooks, and much, much more.

在那裡你會找到豐富的影音課程、每週的直播課程、電子書，還有更多更多。

Just click on the button on the center of your screen to learn more, or click on the card in the upper right hand corner.

點擊你螢幕中間的按鈕就可以瞭解更多，或者點擊右上角的卡片。