Came to say the same. Lee Unkrich, the director of Coco, talked about how much the animators grumbled about how hard it was to animate the fingers and fretwork all correctly, but they all agreed afterward about how happy they were with the result.
He’d gotten similar grumbles when he directed “Toy Story 3” and gave the animators the task of animating the trash bag sequence. The geometry of garbage bags turns out to be extremely tricky to get just right, and the animators all knew how much of a chore it would be.
But again, the results were worth it. Pixar maintained the excellent course when animating Joe Gardner’s hands to match the moves of Jon Batiste. Difficult and exacting work, but beautiful results.
