Divergence-Free Smoothed Particle Hydrodynamics

Jan Bender, Dan Koschier In this paper we introduce an efficient and stable implicit SPH method for the physically-based simulation of incompressible fluids. In the area of computer graphics the most efficient SPH approaches focus solely on the correction of the density error to prevent volume compression. However, the continuity equation for incompressible flow also […]

Functional Thin Films on Surfaces

Omri Azencot, Orestis Vantzos, Max Wardetzky, Martin Rumpf, Mirela Ben-Chen The motion of a thin viscous film of fluid on a curved surface exhibits many intricate visual phenomena, which are challenging to simulate using existing techniques. A possible alternative is to use a reduced model, involving only the temporal evolution of the mass density of […]

Multifarious Hierarchies of Mechanical Models for Artist Assigned Levels-of-Detail

Richard Malgat, Benjamin Gilles, David I.W. Levin, Mathieu Nesme, Francois Faure We present a new framework for artist driven level of detail in solid simulations. Simulated objects are simultaneously embedded in several, separately designed deformation models with their own independent degrees of freedom. The models are ordered to apply their deformations hierarchically, and we enforce […]

SCA 2015

Symposium on Computer Animation, 2015 edition: Illuminating Ideas! A new sharp-crease bending element for folding and wrinkling surfaces and volumes Real-Time Dynamic Wrinkling of Coarse Animated Cloth Fully Momentum-Conserving Reduced Deformable Bodies with Collision, Contact, Articulation, and Skinning Efficient Simulation of Knitted Cloth Using Persistent Contacts Multifarious Hierarchies of Mechanical Models for Artist Assigned Level-of-Detail […]

LazyFluids: Appearance Transfer for Fluid Animations

Ondrej Jamriska, Jakub Fiser, Paul Asente, Jingwan Lu, Eli Shechtman, Daniel Sykora In this paper we present a novel approach to appearance transfer for fluid animations based on flow-guided texture synthesis. In contrast to common practice where pre-captured sets of fluid elements are combined in order to achieve desired motion and look, we bring the […]

Nonlinear Material Design Using Principal Stretches

Hongyi Xu, Funshing Sin, Yufeng Zhu, Jernej Barbic The Finite Element Method is widely used for solid deformable object simulation in film, computer games, virtual reality and medicine. Previous applications of nonlinear solid elasticity employed materials from a few standard families such as linear corotational, nonlinear St.Venant-Kirchhoff, Neo-Hookean, Ogden or Mooney-Rivlin materials. However, the spaces […]

An Implicit Viscosity Formulation for SPH Fluids

Andreas Peer, Markus Ihmsen, Jens Cornelis, Matthias Teschner We present a novel implicit formulation for highly viscous fluids simulated with Smoothed Particle Hydrodynamics SPH. Compared to explicit methods, our formulation is significantly more efficient and handles a larger range of viscosities. Differing from existing implicit formulations, our approach reconstructs the velocity field from a target velocity gradient. This gradient encodes […]

Fluid Volume Modeling from Sparse Multi-view Images by Appearance Transfer

Makoto Okabe, Yoshinori Dobashi, Ken Anjyo, Rikio Onai We propose a method of three-dimensional (3D) modeling of volumetric fluid phenomena from sparse multi-view images (e.g., only a single-view input or a pair of front- and side-view inputs). The volume determined from such sparse inputs using previous methods appears blurry and unnatural with novel views; however, […]