mixedphysics

Mixedphysics refers to a computational technique used in various fields, particularly in scientific simulations and video game development, where different physical behaviors are simulated using distinct and often specialized methods within a single environment. This approach allows for greater efficiency and accuracy by applying the most appropriate simulation model to different aspects of a system. For example, in a video game, rigid body dynamics might be used for solid objects while fluid dynamics are employed for water or smoke. Similarly, in scientific modeling, a complex system might involve both electromagnetic interactions and thermal diffusion, each requiring its own set of equations and numerical solvers.

The core idea behind mixedphysics is to avoid using a single, computationally expensive, and potentially less accurate method for all phenomena. Instead, developers and scientists identify distinct components or behaviors within a system and assign them to specialized physics engines or solvers. This can involve combining discrete element methods for granular materials with continuum mechanics for solid structures, or integrating particle-based simulations for explosions with finite element analysis for structural deformation. The challenge lies in ensuring seamless interaction and data exchange between these disparate simulation models, often requiring sophisticated interface layers and synchronization protocols. By leveraging the strengths of different physics simulation techniques, mixedphysics enables more realistic and performant digital representations of complex real-world scenarios.