Animation Technique

What technique is this when it comes to animation. I’ve saw this one time on a Blizzard cinematic breakdown. The character is broken up to pieces, but I don’t know how it works and if their are tutorials on this? https://www.youtube.com/watch?v=eAPxQEuAIEA

I think this is some preview kind of thing. It seems like you skip the weightpainting. All the pieces are parented to a single bone each, they don’t deform. Or, it does use weightpainting, but then a simple 1.0 weight targeting one bone per piece.

it’s a pretty common technique to speed up the playback of your rig. Skinning can be expensive so parenting non deforming geometry to bones helps for preview purposes.

It’s this solution to viewport performance: