Simulating Human Physical Behavior using Unreal Engine Full Body Inverse Kinematics

Extracting, analyzing, and simulating human physical behavior have proven to be challenging tasks for researchers all over the world for many years. If developed successfully, they can generate important results that will contribute to progress in many fields. These results can change many people's lives, aiding in a handful of domains, such as security, medicine, autonomous robots, and many more. A direct outcome is to obtain the data necessary to train and validate advanced neural network models implied by many of today's solutions. We propose here an approach that uses Unreal Engine 5 to reproduce the movements characteristic to normal human behavior in a simulated environment, considering restrictions of body joints. This method can be used to aid in creating flawless body animation, both procedural and AI generated. It can be included in healthcare-related body simulations, video game development, and in some other fields involving research on physical human or animal behavior.