SwinGar: Spectrum-Inspired Neural Dynamic Deformation for Free-Swinging Garments

TL;DR

This paper introduces SwinGar, a spectrum-inspired neural framework for realistic, dynamic clothing deformation prediction that handles diverse garment types and topologies with high-frequency detail control.

Contribution

It proposes a unified spectral approach with frequency control, spectral descriptors, and a neural estimator for versatile, realistic garment animation.

Findings

Outperforms state-of-the-art methods in realism and versatility.

Effectively generates high-frequency deformation details.

Handles diverse garment topologies and looseness.

Abstract

Our work presents a novel spectrum-inspired learning-based approach for generating clothing deformations with dynamic effects and personalized details. Existing methods in the field of clothing animation are limited to either static behavior or specific network models for individual garments, which hinders their applicability in real-world scenarios where diverse animated garments are required. Our proposed method overcomes these limitations by providing a unified framework that predicts dynamic behavior for different garments with arbitrary topology and looseness, resulting in versatile and realistic deformations. First, we observe that the problem of bias towards low frequency always hampers supervised learning and leads to overly smooth deformations. To address this issue, we introduce a frequency-control strategy from a spectral perspective that enhances the generation of high-frequency details of the deformation. In addition, to make the network highly generalizable and able to learn various clothing deformations effectively, we propose a spectral descriptor to achieve a generalized description of the global shape information. Building on the above strategies, we develop a dynamic clothing deformation estimator that integrates frequency-controllable attention mechanisms with long short-term memory. The estimator takes as input expressive features from garments and human bodies, allowing it to automatically output continuous deformations for diverse clothing types, independent of mesh topology or vertex count. Finally, we present a neural collision handling method to further enhance the realism of garments. Our experimental results demonstrate the effectiveness of our approach on a variety of free-swinging garments and its superiority over state-of-the-art methods.