100% animation of each frame died a long time ago, because people don’t notice much about individual frames.
But as shown in the video you still need to hand tweak a great deal even if you don’t mess with individual frames. Suppose someone is jumping through a window, you need the sound of breaking glass to sync with the glass being broken.
It’s hard to explain why some things the article suggests are really easy and other stuff is difficult, but context is still a hard problem for AI. https://xkcd.com/1425/
Try to name 3 top anime that was completely hand drawn and released in the last 5 years. It’s extremely rare for even key frames to be completely hand drawn, let alone every frame.
Mind you there is CGI in these animes, but the frames themselves are still hand drawn. How else would you expect them to be done?
There's no magic here.
Cartoons can do it because they just use rotations, translations and skews, anime does not have that luxury. The pro is that, imo, when done right, anime is just beautiful to see, mesmerising even.
But as shown in the video you still need to hand tweak a great deal even if you don’t mess with individual frames. Suppose someone is jumping through a window, you need the sound of breaking glass to sync with the glass being broken.
It’s hard to explain why some things the article suggests are really easy and other stuff is difficult, but context is still a hard problem for AI. https://xkcd.com/1425/