Name: 3D 電影為何無法帶來沉浸感？🤔 揭開背後的真實原因！ (Why 3D Movies Are Not Immersive)
Uploaded: 2026-01-19T17:07:30.000Z
Duration: 7 min 58 s

情態副詞

我最近看了《水之道》的3D版本。

It's been a long time since I've seen a 3D movie.

13 years, actually, since Avatar 1 in 2009.

其實是13年前了，自從2009年的《阿凡達》第一集。

Sitting there in the theater watching blue people do stuff, I was suddenly reminded of something that I realized 13 years ago.

坐在電影院裡看著藍色人種做事情，我突然想起13年前我領悟到的某件事。

The 3D was an obstacle to my immersion in the story, which is a problem, because the whole selling point of 3D in film is that it's supposed to carry you further into the action on screen.

3D反而阻礙了我對劇情的沉浸，這很糟糕，因為3D電影的賣點就是 supposed to carry you further into the action on screen。

So here are four reasons why it does the reverse.

所以，這裡有四個原因解釋為什麼它會適得其反。

Reason number one, the focus convergence issue.

This is actually something that this little baby covered on the channel 11 years ago ago.

這其實是這個頻道11年前就講過的內容了。

The basic problem is when we look at an object, our eyes change the shape of their lens to focus at the distance of that object.

基本上，問題在於當我們看一個物體時，我們的眼睛會改變鏡片的形狀來對焦在那個物體的距離上。

Think of it as a plane moving toward and away from the eyes, depending on what you're looking at.

你可以想像成一個平面，根據你看的東西，會朝著眼睛靠近或遠離。

But to facilitate our depth perception, our two eyes also converge on that object, rotating slightly inwards to create a triangle drawn by the object and each eye.

但為了讓我們能感知深度，我們的兩隻眼睛也會匯聚到那個物體上，稍微向內旋轉，形成一個由物體和每隻眼睛構成的三角形。

Now, for all of human history, the focus distance and the convergence point were in the same place.

在人類歷史上，焦點距離和匯聚點一直都在同一個地方。

But 3D movies complicate that, because the focus distance is fixed at the theater screen, say 60ft away from you, and

但3D電影讓情況變得複雜，因為焦點距離固定在電影螢幕上，假設離你60英尺遠，

doesn't change while the convergence point is moving back and forth with the 3D image.

而匯聚點卻隨著3D影像來回移動，焦點距離卻不變。

This separation between focus and convergence takes your brain a little extra time to compensate, which over a 2, 3 movie, can cause headaches or eye fatigue.

焦點和匯聚點之間的這種分離，會讓你的大腦花費額外的時間來補償，看一部2、3小時的電影下來，可能會造成頭痛或眼睛疲勞。

Regular 2D movies are projected at 16 foot lamberts, which are units of luminance.

一般的2D電影投影亮度是16英尺朗伯，這是亮度的單位。

3D movies are significantly dimmer than this, and

that has to do with those special glasses that you wear.

這跟你要戴的那副特殊眼鏡有關。

Basically, 3D movies project two different images onto the screen, and

基本上，3D 電影會在螢幕上投影兩張不同的影像，

each lens of the glasses is polarized to see just one of those images blocking out the other.

眼鏡的每一片鏡片都經過偏振處理，只能看到其中一張影像，擋掉另一張。

The brain puts the two images back together, and in doing so, creates the illusion of depth.

大腦會把這兩張影像重新組合起來，藉此創造出深度錯覺。

The problem is that each eye only gets half the full image, and

問題是，你的每隻眼睛只看到完整的影像的一半，

so the brightness of the movie is effectively halved as well.

所以電影的亮度也有效地減半了。

Then the lenses themselves being filters, cut the light even more, and

接著鏡片本身又像濾鏡一樣，進一步削弱了光線，

3D movies get projected at only around 3.55 foot lamberts, at which point we start to lose color perception.

3D 電影的投影亮度大約只有 3.55 英尺朗伯，這時候我們就開始失去色彩感知了。

So filmmakers have to do special color grades to compensate.

所以電影製作人必須進行特別的色彩分級來補償。

Some great theaters can push it a little bit brighter, but the vast majority can't, and

有些很棒的影廳可以稍微調亮一點，但絕大多數不行，

As Christopher Nolan said on an Experiential level, I find the dimness of the image extremely alienating.

就像 Christopher Nolan 說的，從體驗層面來說，我覺得影像的昏暗感非常疏離。

Reason number three, 3D, makes three theater screens look smaller.

第三個原因，3D 讓三個劇院螢幕看起來更小了。

I saw Avatar 2 on a nice big screen at my local theater.

我在我常去的電影院的大螢幕上看了《阿凡達 2》。

I was sitting middle row, center seat, ready to be engulfed in the world of Pandora.

我坐在中間排、中間的位子，準備好要被潘朵拉的世界給吞噬。

Then I put my 3D glasses on and the screen instantly shrank.

然後我戴上 3D 眼鏡，螢幕瞬間就縮小了。

Well, it almost seemed like the size of my TV at home.

嗯，它幾乎看起來跟我家電視的大小差不多。

Legendary film editor Walter Murch described having the same reaction to 3D in a letter to Roger Eber.

傳奇電影剪輯師 Walter Murch 在寫給 Roger Ebert 的信中，也描述了對 3D 有著同樣的反應。

Somehow the glasses gather in the image, even on a huge IMAX screen, and

不管是多大的 IMAX 螢幕，眼鏡都會把影像聚集起來，即使在 IMAX 螢幕上也是如此，

make it seem half the scope of the same image when looked at without the glasses.

讓影像看起來只有戴眼鏡時的一半大小。

After doing a lot of research, I'm still not entirely sure why this happens.

做了很多研究後，我還是不太確定為什麼會這樣。

But the lack of bigness, the characters that sometimes look miniaturized, like they're in a tilt shift image, diminishes the scale and scope and decreases the immersion.

但這種「不夠大」的感覺，角色有時看起來像縮小了一樣，就像在看縮時攝影，這削弱了規模和視野，也降低了沉浸感。

It didn't feel like I was in Pandora, but watching it through a window in the distance.

感覺不像置身於潘朵拉星球，而是像透過遠方的窗戶在觀看。

Reason number four 3D forces you to look only at what's in focus.

原因四：3D 會迫使你只注意在焦點上的東西。

Now, this is an example of something I didn't realize I missed until it was gone.

這是我直到失去後才意識到自己錯過的。

Cameras like our eyes have what's called depth of field, that plane of distance from the lens within which objects are in focus.

像我們眼睛一樣的攝影機，有稱為「景深」的東西，也就是從鏡頭開始，物體都清晰可見的那個距離平面。

If the depth of field is sufficiently deep, the whole image can be in focus.

如果景深夠深，整個影像都可以是清晰的。

If it's shallow, only a small plane will be in focus, and

如果景深很淺，只有一個小平面會是清晰的，

the stuff in front of and behind that plane will blur.

而那個平面前後的東西就會模糊。

Cinematographers use shallow depth of field for aesthetic reasons, but

攝影師會因為美學考量而使用淺景深，

also to direct our attention to something in the frame.

也會用來引導我們的注意力到畫面中的某個東西。

When depth of field is deep, you're invited to scan and analyze and admire the whole image, not just the main action, but

當景深很深的時候，你會被邀請去掃描、分析和欣賞整個畫面，而不只是主要的動作，

you can also do this when depth of field is shallower.

但當景深比較淺的時候，你也可以做到這點。

Just because something's out of focus doesn't mean you can't tell what it is or shouldn't look at it.

只是因為某樣東西失焦了，並不代表你無法辨識它，或是不該去看它。

Taking in the whole composition, choosing what to look at in the frame and when is part of what makes the viewing experience immersive.

欣賞整個構圖，選擇畫面中要看什麼以及何時看，是讓觀影體驗變得沉浸式的一部分。

Watching Avatar, when I tried to scan the frame, I noticed that what was out of focus wasn't just blurry, but

觀看《阿凡達》時，我試著掃描畫面，我注意到失焦的部分不只是模糊，

dizzying, uncomfortable to look at for more than a second.

而是令人頭暈目眩，看超過一秒就會很不舒服。

Because my eyes were trying to focus the blur.

因為我的眼睛試圖去聚焦那片模糊。

This woozy discomfort effectively traps you inside the depth of field, letting you appreciate only a fraction of the frame.

這種暈眩的不適感有效地將你困在景深裡，讓你只能欣賞畫面的一小部分。

And with each new shot, you need to take a couple of milliseconds to find the critical focus.

而且每一幕，你都需要花幾毫秒的時間去找到關鍵的焦點。

And it's not always automatically obvious.

I found this extremely distracting and constricting.

我發現這極大地分散了注意力，而且讓人感到受限。

You know, I realize I've been talking a lot about cinematic immersion in recent videos, and

你知道，我最近的影片裡講了很多關於電影沉浸感的事，

that's because it's the highest goal of every filmmaker.

因為這是每個電影製作人的最高目標。

You want the audience to have a deep involvement in the narrative on screen.

你希望觀眾能深度參與螢幕上的敘事。

That involvement can be physical, can be emotional, intellectual, or all three at once.

這種參與可以是身體上的、情感上的、智力上的，或是三者兼具。

For a long time, 3D has been billed as an aid to immersion and intensifier of it.

長期以來，3D 一直被宣傳為輔助沉浸感和增強沉浸感的工具。

Hey everybody, thank you so much for watching.

By the way, if you enjoy 3D movies, more power to you.

順帶一提，如果你很喜歡 3D 電影，那當然很棒。

This episode was brought to you by Squarespace.

這一集的內容是由 Squarespace 贊助播出。

If you don't know, you can use Squarespace to make websites for anything you might need.

如果你不知道的話，你可以用 Squarespace 來建立任何你需要的網站。

Want to make a site for your video content?

想為你的影音內容建立一個網站嗎？

Well, you can upload your video library directly to Squarespace and even sell access to that content.

沒錯，你可以直接把你的影片庫上傳到 Squarespace，甚至可以販售內容的觀看權限。

Or you can use the Squarespace Video Studio app to make pro level videos within Squarespace and host your content on beautiful pages designed with their easy to use blogging tools.

或者，你可以使用 Squarespace Video Studio app 在 Squarespace 內製作專業級的影片，並將你的內容託管在他們易於使用的部落格工具所設計的美觀頁面上。

Basically, a Squarespace site is going to make whatever you're sharing or selling look professional, and

基本上，Squarespace 網站能讓你想分享或販售的任何東西看起來都很專業，

that's going to help you get the word out, whatever that word actually is.

而且這能幫助你宣傳出去，不管你想宣傳的內容是什麼。

Head over to squarespace.com for a free trial and when you're ready to Launch, go to squarespace.com nerdwriter for 10% off your first purchase.

前往 squarespace.com 註冊免費試用，當你準備好上線時，前往 squarespace.com nerdwriter 即可享有首次購買 10% 的折扣。