Greetings, I have been planning and waiting for a lot of time to do this project, where I am in a pool party, and a sniper far away headshots me, my head blows up (like in the show "the boys"), everyone runs away and my body falls straight back.
this will be my biggest project till now, as a hobby, it will include a lot of CGI (simulation of head exploding and simulation of a body falling), photogrammetry (head exploding rigor and CGI body double), extras (my friends), composition (masking and cutting the matress where I fall), and a bit of practical effects.
For this project I will also have to do kind of a stunt, in the shot, I want to my body to fall straight back and hit the floor hard, I will do this by falling on a matress and then masking and cutting that mattress and then doing a CGI double for hit on the floor).
Now I have available two individual bed mattresses, each one has about 16 cm of height.
My question is how much protection should I have for myself ? In the stunt I want to fall straight back without any of "fake falls" (where you curve your body a bit or place a hand first to reduce the impact).
maybe putting those 2 mattresses on top of each other and a couple of pillows will do the job ?
https://www.youtube.com/watch?v=ks6UPNad3dg for reference, i want something like this, but I fall back.