2018
MotionBuilder version of the famous Maya tool « TweenMachine »

Done:

Python scripting

Download link

So here is my version for MotionBuilder of the famous Maya tool « TweenMachine », so an animator can quickly set keyframes and in-betweens depending on his previous/next poses.
I wanted to use the most of the software and its rig :

- It works on any kind of nodes ( markers, nulls, multiple selection, control rigs…).
- choose your character and set in-betweens directly on the full body,…
- you can go beyond the previous/next poses to make your anticipation/follow through…
- …and tweak your poses using the different body parts of your control rig.