Adaptive Position-Based Fluids: Improving Performance of Fluid Simulations for Real-Time Applications
Marcel Köster, Antonio Krüger · International Journal of Computer Graphics & Animation · 2016
The Position Based Fluids (PBF) method is a state-of-the-art approach for fluid simulations in the context of real-time applications like games.It uses an iterative solver concept that tries to maintain a constant fluid density (incompressibility) to realize incompressible fluids like water.However, larger fluid volumes that consist of several hundred thousand particles (e.g. for the simulation of oceans) require many iterations and a lot of simulation power.We present a lightweight and easy-to-integrate extension to PBF that adaptively adjusts the number of solver iterations on a fine-grained basis.Using a novel adaptivesimulation approach, we are able to achieve significant improvements in performance on our evaluation scenarios while maintaining high-quality results in terms of visualization quality, which makes it a perfect choice for game developers.Furthermore, our method does not weaken the advantages of prior work and seamlessly integrates into other position-based methods for physically-based simulations.