Topology-Aware Neighborhoods for Point-Based Simulation and Reconstruction
BARTHE, Loic
Structural Models and Tools in Computer Graphics [IRIT-STORM]
Université Toulouse III - Paul Sabatier [UT3]
Structural Models and Tools in Computer Graphics [IRIT-STORM]
Université Toulouse III - Paul Sabatier [UT3]
BARTHE, Loic
Structural Models and Tools in Computer Graphics [IRIT-STORM]
Université Toulouse III - Paul Sabatier [UT3]
< Réduire
Structural Models and Tools in Computer Graphics [IRIT-STORM]
Université Toulouse III - Paul Sabatier [UT3]
Langue
en
Communication dans un congrès avec actes
Ce document a été publié dans
Eurographics/ ACM SIGGRAPH Symposium on Computer Animation, 2016-07-11, Zurich. 2016
Résumé en anglais
Particle based simulations are widely used in computer graphics. In this field, several recent results have improved the simula- tion itself or improved the tension of the final fluid surface. In current particle based ...Lire la suite >
Particle based simulations are widely used in computer graphics. In this field, several recent results have improved the simula- tion itself or improved the tension of the final fluid surface. In current particle based implementations, the particle neighborhood is computed by considering the Euclidean distance between fluid particles only. Thus particles from different fluid components interact, which generates both local incorrect behavior in the simulation and blending artifacts in the reconstructed fluid sur- face. Our method introduces a better neighborhood computation for both the physical simulation and surface reconstruction steps. We track and store the local fluid topology around each particle using a graph structure. In this graph, only particles within the same local fluid component are neighbors and other disconnected fluid particles are inserted only if they come into contact. The graph connectivity also takes into account the asymmetric behavior of particles when they merge and split, and the fluid surface is reconstructed accordingly, thus avoiding their blending at distance before a merge. In the simulation, this neighborhood information is exploited for better controlling the fluid density and the force interactions at the vicinity of its boundaries. For instance, it prevents the introduction of collision events when two distinct fluid components are crossing without contact, and it avoids fluid interactions through thin waterproof walls. This leads to an overall more consistent fluid simulation and reconstruction.< Réduire
Project ANR
Modèles et Maillages Implicites - ANR-11-JS02-0007
Université Fédérale de Toulouse - ANR-11-IDEX-0002
Université Fédérale de Toulouse - ANR-11-IDEX-0002
Origine
Importé de halUnités de recherche