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Progressive Dynamics for Cloth and Shell Animation
Progressive simulation framework for cloth and thin shells dynamically balancing accuracy and speed during animation production workflows.
Abstract
We propose Progressive Dynamics, a coarse-to-fine, level-of-detail simulation method for the physics-based animation of complex frictionally contacting thin shell and cloth dynamics. Progressive Dynamics provides tight-matching consistency and progressive improvement across levels, with comparable quality and realism to high-fidelity, IPC-based shell simulations [Li et al. 2021] at finest resolutions. Together these features enable an efficient animation-design pipeline with predictive coarse-resolution previews providing rapid design iterations for a final, to-be-generated, high-resolution animation. In contrast, previously, to design such scenes with comparable dynamics would require prohibitively slow design iterations via repeated direct simulations on high-resolution meshes. We evaluate and demonstrate Progressive Dynamics's features over a wide range of challenging stress-tests, benchmarks, and animation design tasks. Here Progressive Dynamics efficiently computes consistent previews at costs comparable to coarsest-level direct simulations. Its matching progressive refinements across levels then generate rich, high-resolution animations with high-speed dynamics, impacts, and the complex detailing of the dynamic wrinkling, folding, and sliding of frictionally contacting thin shells and fabrics.
How to read this
- Category
- Method: level-of-detail physics simulation for cloth and thin shells
- Contributions
- Progressive Dynamics, a coarse-to-fine simulation method for frictionally contacting thin shells and cloth
- Tight-matching consistency and progressive refinement across levels, enabling fast coarse previews that refine to high-resolution animation
- Evaluation across stress-tests, benchmarks, and animation-design tasks
- Context
- A physics-based cloth and shell method in the discrete-shell and IPC-contact lineage, building on Discrete Shells (Grinspun 2003) and referencing IPC-based shell simulation (Li et al. 2021).Builds on: Discrete Shells
- Correctness
- Claims quality comparable to high-fidelity IPC-based simulation at the finest level while giving consistent coarse previews; consistency across levels is the central assumption, and a reader should keep in mind that preview cost is comparable to coarsest-level direct simulation rather than free.
- Clarity
- Dense; a first pass conveys the coarse-to-fine design intent, but the consistency and refinement guarantees need a careful second or third pass.
- How to read it
- First pass for the design-iteration motivation and the preview-to-final workflow; reserve a deeper pass for how cross-level consistency is enforced and how it relates to IPC contact.
Builds on
- Discrete Shells 2003
Built upon by
Nothing yet.
Related work
- Multi-Resolution Isotropic Strain Limiting 2010 / SIGGRAPH Asia
- Codimensional Incremental Potential Contact 2021 / SIGGRAPH
- An Implicit Frictional Contact Solver for Adaptive Cloth Simulation 2018 / SIGGRAPH
- Continuum-based Strain Limiting 2009 / Eurographics
Keywords
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