The underlying film was shot and edited by Daniel Redding and I added the veg.
It is a mixture of Cinema 4d and After Effects work. A lot of masking and tracking. I created virtual spaces in C4D which I then added the veg particles too. The veggies then bounce around and move in relation to the invisible 3d version of Ivo and friends. I then composited this back together with the original footage in After Effects.