World Labs 联创称 Atlas 可用三台 iPhone 复刻《矩阵》子弹时间镜头
a16z 转发 World Labs 联合创始人 Justin Johnson 的说法，介绍 Atlas 如何复刻《矩阵》著名的子弹时间镜头。他称原片需要绿幕影棚中数百台相机环绕拍摄，而现在用 Atlas 只需三台架在三脚架上的 iPhone 拍摄视频，无需影棚、绿幕和昂贵标定，即可从三段视频重新取景，实现冻结时间、镜头飞入等效果。
World Labs co-founder Justin Johnson says Atlas can recreate the famous "Bullet Time" shot from The Matrix with iPhones:
"The way they did that shot is they had a ring of hundreds of cameras. [Neo] fell over in the studio, they had hundreds of cameras viewing that angle on a green screen, and then they used those hundreds and hundreds of cameras to make that famous shot in The Matrix."
"Now with Atlas, we can do this with as few as three cameras. No studio capture, no green screen, no expensive calibration. We can literally stick three iPhones on tripods and use these to take video of something happening."
"From those three iPhone videos, we can then reframe the shot and imagine, like, freeze time, have the camera fly in as the milk is splashing up, and get these amazing frozen-time views. We can do this with just a couple cameras."
@jcjohnss
来源：a16z · x.com