Hello, been following this thread as I was really interested in dynamic foliage collision as well. The physics driven systems look really impressive until I saw how the NaughtyDog guys did their dynamic foliage in Uncharted4. They spoke about physics solutions being way too heavy for a game. So as far as I can tell it sounds like they’ve gone for a material approach instead. You can watch the video here: Technical Art with Naughty Dog - Pt. 3 - YouTube. perhaps to get the grass/foliage to stay down after passing through would be to leave a trail of spheres/capsules behind the character that also influence the material bending, then scale down over time to let the foliage lift up again?