Tracking / ReTarget'ing, Real Body Pose To Skeleton Pose

anyone knows whats the name of that suit, used for tracking or retargeting to make emote animation?

if you know any keywords that gonna help me to find or search on internet, I’m so gladness!!.

share any related videos if you know any.

where you can buy a full set of Tracking / Retargeting tools? whats the name of it actually.

I found some, they call it Motion Capture

so now need to find out how to do that with UE :cool: