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Physically-based Modeling, Simulation, and Animation   

Simulation of the natural world is a rich and difficult research problem. The GAMMA research group investigates a wide variety of techniques for efficient physically-based simulation and animation.

Projects include automatic simplification of articulated body dynamics, efficient cloth simulation using chromatic decomposition, simulation of hair dynamics, simulation of painting, simulation of lightning, and simulation of ice formation. Past projects include automatic simplification of particle systems, and fast penetration depth calculation using deformed distance fields.

Projects

• A GPU-based Streaming Algorithm for High-Resolution Cloth Simulation
• Large-scale Fluid Simulation using Velocity-Vorticity Domain Decomposition
• Continuous Penalty Forces: Improved collision response using penalty based methods
• Simulation of free-flowing granular materials with two-way solid coupling 
• Simulation and animation of massive traffic flows using continuum dynamics 
• Soft articulated characters with fast contact handling
• Simulation of shockwaves in gases 
• Motion synthesis for deformable models
• Haptic rendering of high-resolution deformable objects
• Fast simulation of deformable models in contact using dynamic deformation textures
• Parallelizable simulation of compressible fluid/elastic coupling
• Fast simulation of Laplacian-growth-driven phenomena
• Adaptive dynamics of articulated bodies
• Cloth simulation using chromatic decomposition
• Efficient, error-bounded approximate simulation for quasi-statics of complex linkages
• Paint simulation, including an interactive brush model, the DAB painting system, the IMPASTO painting system, and an interactive viscous paint model 
• Physically-based simulation, animation, and rendering of lightning
• Hair modeling using level-of-detail representations, adaptive grouping and subdivision, and water and styling product effects
• Simulation of ice crystal growth using phase fields and a hybrid approach
• Simulation levels of detail for automatic simplification of particle systems
• Fast penetration depth estimation for elastic bodies using deformable distance fields
• Implicit finite element method for elastic solids in contact
• Fast volume-preserving free-form deformation using multi-level optimization
• 3D morphing using feature-based surface decomposition

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