I'm trying to get this walk cycle to work with a movie clip and it's hard to stop the feet from going through the floor. However, when I keyframe the clip to move up when the feet go through, and down when they are parallel to the floor, it has this weird hopping effect.
Here is a gif of it keyframed (sorry about the quality...this site has a 2mb image limit):
Here is what happens if I leave the z location constant
Here is a link to the .blend
https://drive.google.com/file/d/1ZUTU2ZJkQT7UCdWYh2Z8MXgfY-HB-3vU/view?usp=sharing
Here is a link to the .mov file (couldn't pack it)
https://drive.google.com/file/d/1hBfK1ik4euPLOrHYDmD_DM19IxidOQAS/view?usp=sharing