Volume 39 (2020): Recent submissions
Now showing items 61-80 of 297
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A Finite Element Formulation of Baraff-Witkin Cloth
(The Eurographics Association and John Wiley & Sons Ltd., 2020)The Baraff-Witkin [BW98] model has been a popular formulation for cloth for 20 years. However, its relationship to the finite element method (FEM) has always been unclear, because the model resists being written as an ... -
Higher-Order Time Integration for Deformable Solids
(The Eurographics Association and John Wiley & Sons Ltd., 2020)Visually appealing and vivid simulations of deformable solids represent an important aspect of physically based computer animation. For the temporal discretization, it is customary in computer animation to use first-order ... -
Fully Convolutional Graph Neural Networks for Parametric Virtual Try-On
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present a learning-based approach for virtual try-on applications based on a fully convolutional graph neural network. In contrast to existing data-driven models, which are trained for a specific garment or mesh topology, ... -
A Pixel-Based Framework for Data-Driven Clothing
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We propose a novel approach to learning cloth deformation as a function of body pose, recasting the graph-like triangle mesh data structure into image-based data in order to leverage popular and well-developed convolutional ... -
Cloth and Skin Deformation with a Triangle Mesh Based Convolutional Neural Network
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We introduce a triangle mesh based convolutional neural network. The proposed network structure can be used for problems where input and/or output are defined on a manifold triangle mesh with or without boundary. We ... -
Distant Collision Response in Rigid Body Simulations
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We use a finite element model to predict the vibration response of objects in a rigid body simulation, such that rigid objects are augmented to provide a plausible elastic collision response between distant objects due to ... -
Detailed Rigid Body Simulation with Extended Position Based Dynamics
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present a rigid body simulation method that can resolve small temporal and spatial details by using a quasi explicit integration scheme that is unconditionally stable. Traditional rigid body simulators linearize constraints ... -
Primal/Dual Descent Methods for Dynamics
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We examine the relationship between primal, or force-based, and dual, or constraint-based formulations of dynamics. Variational frameworks such as Projective Dynamics have proved popular for deformable simulation, however ... -
Particle-based Liquid Control using Animation Templates
(The Eurographics Association and John Wiley & Sons Ltd., 2020)It is notoriously difficult for artists to control liquids while generating plausible animations. We introduce a new liquid control tool that allows users to load, transform, and apply precomputed liquid simulation templates ... -
A Divergence-free Mixture Model for Multiphase Fluids
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present a novel divergence free mixture model for multiphase flows and the related fluid-solid coupling. The new mixture model is built upon a volume-weighted mixture velocity so that the divergence free condition is ... -
Effective Time Step Restrictions for Explicit MPM Simulation
(The Eurographics Association and John Wiley & Sons Ltd., 2020)Time steps for explicit MPM simulation in computer graphics are often selected by trial and error due to the challenges in automatically selecting stable time step sizes. Our time integration scheme uses time step restrictions ... -
Making Procedural Water Waves Boundary-aware
(The Eurographics Association and John Wiley & Sons Ltd., 2020)The ''procedural'' approach to animating ocean waves is the dominant algorithm for animating larger bodies of water in interactive applications as well as in off-line productions - it provides high visual quality with a ... -
Interactive Sound Propagation For Dynamic Scenes Using 2d Wave Simulation
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present a technique to model wave-based sound propagation to complement visual animation in fully dynamic scenes. We employ 2D wave simulation that captures geometry-based diffraction effects such as obstruction, ... -
Efficient 2D Simulation on Moving 3D Surfaces
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present a method to simulate fluid flow on evolving surfaces, e.g., an oil film on a water surface. Given an animated surface (e.g., extracted from a particle-based fluid simulation) in three-dimensional space, we add ... -
Latent Space Subdivision: Stable and Controllable Time Predictions for Fluid Flow
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We propose an end-to-end trained neural network architecture to robustly predict the complex dynamics of fluid flows with high temporal stability. We focus on single-phase smoke simulations in 2D and 3D based on the ... -
A Hybrid Lagrangian/Eulerian Collocated Velocity Advection and Projection Method for Fluid Simulation
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present a hybrid particle/grid approach for simulating incompressible fluids on collocated velocity grids. Our approach supports both particle-based Lagrangian advection in very detailed regions of the flow and efficient ... -
Multi‐Level Memory Structures for Simulating and Rendering Smoothed Particle Hydrodynamics
(© 2020 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltd, 2020)In this paper, we present a novel hash map‐based sparse data structure for Smoothed Particle Hydrodynamics, which allows for efficient neighbourhood queries in spatially adaptive simulations as well as direct ray tracing ... -
Stereo Inverse Brightness Modulation for Guidance in Dynamic Panorama Videos in Virtual Reality
(© 2020 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltd, 2020)The peak of virtual reality offers new exciting possibilities for the creation of media content but also poses new challenges. Some areas of interest might be overlooked because the visual content fills up a large portion ... -
Progressive Acquisition of SVBRDF and Shape in Motion
(© 2020 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltd, 2020)To estimate appearance parameters, traditional SVBRDF acquisition methods require multiple input images to be captured with various angles of light and camera, followed by a post‐processing step. For this reason, subjects ... -
Data‐Driven Facial Simulation
(© 2020 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltd, 2020)In Visual Effects, the creation of realistic facial performances is still a challenge that the industry is trying to overcome. Blendshape deformation is used to reproduce the action of different groups of muscles, which ...