eli5 How have we made animated movies with fluid, realistic human movement, but the same still can’t be achieved in video games?

Question

eli5 How have we made animated movies with fluid, realistic human movement, but the same still can’t be achieved in video games?

In: Technology

Answer 1

The short answer, the video games don’t know what you’re gonna do, so it has to animate on the fly, which is hard to do. Real time is hard to keep up with!

An animated movie though, might be 2h long but takes literal days to render.