Editing Openai/6946bb9e-0850-8002-a6b4-d858a8fdc880 (section)

==== 後製 3D 電影（2D → 3D） ====

!https://www\.researchgate\.net/publication/228577796/figure/fig1/AS%3A301832137134081%401448973797698/Flowchart\-of\-the\-overall\-system\-for\-2D\-to\-stereoscopic\-3D\-video\-conversion\-of\-scenes\-with\.png?utm\_source=chatgpt\.com<ref>{{cite web|title=https://www\.researchgate\.net/publication/228577796/figure/fig1/AS%3A301832137134081%401448973797698/Flowchart\-of\-the\-overall\-system\-for\-2D\-to\-stereoscopic\-3D\-video\-conversion\-of\-scenes\-with\.png?utm\_source=chatgpt\.com|url=https://images.openai.com/thumbnails/url/TIhhJnicu5mZUVJSUGylr5-al1xUWVCSmqJbkpRnoJdeXJJYkpmsl5yfq5-Zm5ieWmxfaAuUsXL0S7F0Tw7yyC02ytUNcQsyCE0vMAqKMMgqMsvyNQopz_HwiDBKNTOwNDAL8C5JKTQyDfUIc3dUKwYAPCMknA|publisher=images.openai.com|access-date=2025-12-21}}</ref>
!https://www\.xaviermartinvfx\.com/wp\-content/uploads/2014/11/ZDepth3\-00000\-min\.jpg?utm\_source=chatgpt\.com<ref>{{cite web|title=https://www\.xaviermartinvfx\.com/wp\-content/uploads/2014/11/ZDepth3\-00000\-min\.jpg?utm\_source=chatgpt\.com|url=https://www.xaviermartinvfx.com/wp-content/uploads/2014/11/ZDepth3-00000-min.jpg|publisher=xaviermartinvfx.com|access-date=2025-12-21}}</ref>
!https://miro\.medium\.com/v2/resize%3Afit%3A1400/1%2Ads5NlQwvpmKTg\-LsmkGFcA\.png?utm\_source=chatgpt\.com<ref>{{cite web|title=https://miro\.medium\.com/v2/resize%3Afit%3A1400/1%2Ads5NlQwvpmKTg\-LsmkGFcA\.png?utm\_source=chatgpt\.com|url=https://miro.medium.com/v2/resize%3Afit%3A1400/1%2Ads5NlQwvpmKTg-LsmkGFcA.png|publisher=miro.medium.com|access-date=2025-12-21}}</ref>

===== 怎麼做？ =====
* 原本只拍 單一 2D 畫面
* 後期用軟體 + 人工： - 切割物件 - 製作 Depth Map（深度圖） - 人為「猜」前後距離

===== 優點 =====
* ✅ 成本相對低
* ✅ 舊電影也能變 3D
* ✅ 拍攝時不用顧慮 3D

===== 缺點 =====
* ❌ 立體感較假
* ❌ 容易有紙片感
* ❌ 快速動作、髮絲、透明物容易破功
* ❌ 觀影較容易疲勞

===== 你看到的感覺 =====

: 像把 2D 圖層一層一層拉開
: 物體有前後，但「厚度」不自然