FLIP: A method for adaptively zoned, particle-in-cell calculations of fluid flows in two dimensions
Journal of Computational Physics
Simulating free surface flows with SPH
Journal of Computational Physics
SPH without a tensile instability
Journal of Computational Physics
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Particle-based fluid simulation for interactive applications
Proceedings of the 2003 ACM SIGGRAPH/Eurographics symposium on Computer animation
ACM SIGGRAPH 2005 Papers
Particle-based simulation of granular materials
Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation
Particle-based viscoelastic fluid simulation
Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation
Journal of Visual Communication and Image Representation
Weakly compressible SPH for free surface flows
SCA '07 Proceedings of the 2007 ACM SIGGRAPH/Eurographics symposium on Computer animation
ACM SIGGRAPH 2008 papers
Screen space fluid rendering with curvature flow
Proceedings of the 2009 symposium on Interactive 3D graphics and games
Predictive-corrective incompressible SPH
ACM SIGGRAPH 2009 papers
ACM SIGGRAPH 2011 papers
SPH granular flow with friction and cohesion
SCA '11 Proceedings of the 2011 ACM SIGGRAPH/Eurographics Symposium on Computer Animation
Hybrid smoothed particle hydrodynamics
SCA '11 Proceedings of the 2011 ACM SIGGRAPH/Eurographics Symposium on Computer Animation
Mass and momentum conservation for fluid simulation
SCA '11 Proceedings of the 2011 ACM SIGGRAPH/Eurographics Symposium on Computer Animation
IEEE Transactions on Visualization and Computer Graphics
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
Versatile rigid-fluid coupling for incompressible SPH
ACM Transactions on Graphics (TOG) - SIGGRAPH 2012 Conference Proceedings
Reconstructing surfaces of particle-based fluids using anisotropic kernels
ACM Transactions on Graphics (TOG)
Versatile surface tension and adhesion for SPH fluids
ACM Transactions on Graphics (TOG)
Physics-based animation of large-scale splashing liquids
ACM Transactions on Graphics (TOG)
Optimizing neighborhood projection with relaxation factor for inextensible cloth simulation
The Visual Computer: International Journal of Computer Graphics
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In fluid simulation, enforcing incompressibility is crucial for realism; it is also computationally expensive. Recent work has improved efficiency, but still requires time-steps that are impractical for real-time applications. In this work we present an iterative density solver integrated into the Position Based Dynamics framework (PBD). By formulating and solving a set of positional constraints that enforce constant density, our method allows similar incompressibility and convergence to modern smoothed particle hydro-dynamic (SPH) solvers, but inherits the stability of the geometric, position based dynamics method, allowing large time steps suitable for real-time applications. We incorporate an artificial pressure term that improves particle distribution, creates surface tension, and lowers the neighborhood requirements of traditional SPH. Finally, we address the issue of energy loss by applying vorticity confinement as a velocity post process.