From "Star Wars" to "Happy Feet," many beloved films contain scenes that were made possible by motion capture technology, which records movement of objects or people through video. Further, applications for this tracking, which involve complicated interactions between physics, geometry, and perception, extend beyond Hollywood to the military, sports training, medical fields, and computer vision and robotics, allowing engineers to understand and simulate action happening within real-world environments.
source https://www.lifetechnology.com/blogs/life-technology-technology-news/trained-neural-network-pipeline-simulates-physical-systems-of-rigid-and-deformable-bodies-and-environmental-conditions