《我是傳奇》的場景是如何做到的？

那些雜草叢生的街道，斑駁的大樓

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看到這個問題我就分享一個視頻吧，這個視頻是國外童鞋模仿《我是傳奇》做的廢墟鏡頭的幕後花絮，他主要用的是C4D和AE。（視頻太晚先不傳優酷了，明天在上傳，先直接放下載地址）

Matte Painting - After Effects Breakdown (vfxinfo.net)視頻

簡單說下步驟：

原始素材

然後去除一些運動的物體，比如人或者飄動的國旗。方法一般就是roto，或者攝像機沒有動的話，可以使用ps的堆棧功能製作靜幀背景。

然後就通過攝像機反求軟體求出攝像機，以及進行建立和場景匹配的簡單模型，並製作一些想要的效果的材質

然後進入後期軟體中進行合成

基本就這些
視頻下載地址：
Matte Painting
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在發一個《我是傳奇》的幕後花絮I Am Legend- The Making of Shots_2（VFXinfo.net）視頻

最後就是加些細節了（細節，雜草什麼的）

final！

基本就這樣，這個也算是比較簡單的一個鏡頭的合成了。視頻下載地址：
I Am Legend- The Making of Shots（VFXinfo.net）.mp4_免費高速下載

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之前有在外網上看過這部電影的部分幕後，特此貼出僅供參考。
Building the Urban Jungle of "I Am Legend" -- New York Magazine

In I Am Legend, a virus hits in 2009, infecting everyone but Will Smith. By 2012, New York is rife with monsters at night yet empty during the day: a spookily beautiful dystopia. 「Most apocalyptic movies are very dark, with burnt-out cities,」 says director Francis Lawrence. 「The truth is that if people left, nature would start reclaiming the city pretty quickly.」 Creating the illusion of a verdant, depopulated Manhattan took $40 million of the film』s $150 million budget. And even with hundreds of assistants pushing pedestrians out of the frame, a visual-effects team still had to digitally remove each sign of life from shots, erasing people and darkening windows. Here』s how they constructed the opening scene, in which Smith hunts a deer in Times Square: Lasers mapped real buildings to within an inch, creating gray structures (1). Then the crew took thousands of digital photos, using them to add detail, while animators put in 3-D objects (2) that would eventually look like cars and billboards. The street itself, covered in grass, was practically the only thing built on a soundstage. The final result is what you see in (3). As for the TKTS booth (4), a hybrid of set design and CGI, it was based on plans for the unfinished renovation. And those billboards? 「We had to decide which Broadway shows would still be open in 2009,」 says visual-effects supervisor Janek Sirrs. And which Warner Bros. movies. 「We』ve got an ad forSuperman vs. Batman in there somewhere.」

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綠布加特技，duangduangduang

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