Casas, DanPérez, JesúsOtaduy, Miguel A.Romero, Cristian2021-10-262021-10-262021ACM Transactions on GraphicsVolume 40Issue 4August 2021 Article No.: 131pp 1–12https://doi.org/10.1145/3450626.3459875http://hdl.handle.net/10115/18253This paper introduces a novel subspace method for the simulation of dynamic deformations. The method augments existing linear handle-based subspace formulations with nonlinear learning-based corrections parameterized by the same subspace. Together, they produce a compact nonlinear model that combines the fast dynamics and overall contact-based interaction of subspace methods, with the highly detailed deformations of learning-based methods. We propose a formulation of the model with nonlinear corrections applied on the local undeformed setting, and decoupling internal and external contact-driven corrections. We define a simple mapping of these corrections to the global setting, an efficient implementation for dynamic simulation, and a training pipeline to generate examples that efficiently cover the interaction space. Altogether, the method achieves unprecedented combination of speed and contact-driven deformation detail.engAtribución-NoComercial-CompartirIgual 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-sa/4.0/Informáticainfo:eu-repo/semantics/preprint10.1145/3450626.3459875info:eu-repo/semantics/openAccess1203.17 Informática