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

Animated movies are animated over many months by experts, who tweak them to make everything perfect. Video games are animated by algorithms that can run quickly in the minimum PC a casual gamer might have.

Fast algorithms are not as good as humans. Not even close.

The rendering of a movie is also of almost unlimited complexity, where the rendering in a game needs to be done in real time by an average video card.