Animation Wrinkling: Augmenting Coarse Cloth Simulations with Realistic-Looking Wrinkles

Abstract : Moving garments and other cloth objects exhibit dynamic, complex wrinkles. Generating such wrinkles in a virtual environment currently requires either a time-consuming manual design process, or a computationally expensive simulation, often combined with accurate parameter-tuning requiring specialized animator skills. Our work presents an alternative approach for wrinkle generation which combines coarse cloth animation with a post-processing step for efficient generation of realistic-looking fine dynamic wrinkles. Our method uses the stretch tensor of the coarse animation output as a guide for wrinkle placement. To ensure temporal coherence, the placement mechanism uses a space-time approach allowing not only for smooth wrinkle appearance and disappearance, but also for wrinkle motion, splitting, and merging over time. Our method generates believable wrinkle geometry using specialized curve-based implicit deformers. The method is fully automatic and has a single user control parameter that enables the user to mimic different fabrics.
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Submitted on : Saturday, September 25, 2010 - 4:25:22 PM
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Damien Rohmer, Tiberiu Popa, Marie-Paule Cani, Stefanie Hahmann, Sheffer Alla. Animation Wrinkling: Augmenting Coarse Cloth Simulations with Realistic-Looking Wrinkles. ACM Transactions on Graphics, Association for Computing Machinery, 2010, 29 (5), pp.157. ⟨10.1145/1882261.1866183⟩. ⟨hal-00516411v3⟩



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