track suit are a special type of clothing with little balls on them i will tell you how games are made with a bodysuit and why it's so useful to compenies like rockstar games
what the image is explaining is that the guy is wearing ceansors suit what that means is those little balls track all the motion that there making and thats why they are called motion capture suits or for short mocap
Motion capture suits are very expensive they are usually 20,000 dollar and it needs a lot of space for the suit because if you are going to do insane stunts usually by mortal combat franchise. Or simply go outside but inside is better. It depends on how long the video would be and what service are required for the motion capture suit
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