article published yes Georg Sperl author 4DD40360-F248-11E8-B48F-1D18A9856A87 Rahul Narain author Christopher J Wojtan author 3C61F1D2-F248-11E8-B48F-1D18A9856A870000-0001-6646-5546 ChWo department Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales project We present a method for animating yarn-level cloth effects using a thin-shell solver. We accomplish this through numerical homogenization: we first use a large number of yarn-level simulations to build a model of the potential energy density of the cloth, and then use this energy density function to compute forces in a thin shell simulator. We model several yarn-based materials, including both woven and knitted fabrics. Our model faithfully reproduces expected effects like the stiffness of woven fabrics, and the highly deformable nature and anisotropy of knitted fabrics. Our approach does not require any real-world experiments nor measurements; because the method is based entirely on simulations, it can generate entirely new material models quickly, without the need for testing apparatuses or human intervention. We provide data-driven models of several woven and knitted fabrics, which can be used for efficient simulation with an off-the-shelf cloth solver. https://research-explorer.ista.ac.at/download/8385/8794/2020_hylc_submitted.pdf application/pdfno Association for Computing Machinery2020 eng 07300301 15577368 00058370030002110.1145/3386569.3392412 394 https://research-explorer.ista.ac.at/record/12358 Sperl G, Narain R, Wojtan C. Homogenized yarn-level cloth. <i>ACM Transactions on Graphics</i>. 2020;39(4). doi:<a href="https://doi.org/10.1145/3386569.3392412">10.1145/3386569.3392412</a> G. Sperl, R. Narain, C. Wojtan, ACM Transactions on Graphics 39 (2020). Sperl, Georg, Rahul Narain, and Chris Wojtan. “Homogenized Yarn-Level Cloth.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2020. <a href="https://doi.org/10.1145/3386569.3392412">https://doi.org/10.1145/3386569.3392412</a>. G. Sperl, R. Narain, and C. Wojtan, “Homogenized yarn-level cloth,” <i>ACM Transactions on Graphics</i>, vol. 39, no. 4. Association for Computing Machinery, 2020. Sperl G, Narain R, Wojtan C. 2020. Homogenized yarn-level cloth. ACM Transactions on Graphics. 39(4), 48. Sperl, Georg, et al. “Homogenized Yarn-Level Cloth.” <i>ACM Transactions on Graphics</i>, vol. 39, no. 4, 48, Association for Computing Machinery, 2020, doi:<a href="https://doi.org/10.1145/3386569.3392412">10.1145/3386569.3392412</a>. Sperl, G., Narain, R., &#38; Wojtan, C. (2020). Homogenized yarn-level cloth. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href="https://doi.org/10.1145/3386569.3392412">https://doi.org/10.1145/3386569.3392412</a> 83852020-09-13T22:01:18Z2026-04-07T14:12:58Z