Wrinkling Coarse Meshes on the GPU

Abstract

The simulation of complex layers of folds of cloth can be handled through algorithms which take the physical dynamics into account. In many cases, however, it is sufficient to generate wrinkles on a piece of garment which mostly appears spread out. This paper presents a corresponding fully GPU-based, easy-to-control, and robust method to generate and render plausible and detailed folds. This simulation is generated from an animated mesh. A relaxation step ensures that the behavior remains globally consistent. The resulting wrinkle field controls the lighting and distorts the texture in a way which closely simulates an actually deformed surface. No highly tessellated mesh is required to compute the position of the folds or to render them. Furthermore, the solution provides a 3D paint interface through which the user may bias the computation in such a way that folds already appear in the rest pose.

Impact of Expressive Wrinkles on Perception of a Virtual Character’s Facial Expressions of Emotions

“…As generative models require more computation time, some use the GPU to generate wrinkles [19]. The method is similar to Larboulette's work [17], but the wrinkle pattern is dynamically generated in the GPU.…”

A survey on CAD methods in 3D garment design

“…In [66] a GPU-based method is proposed to generate and render detailed folds on garment. The core of this parallel technique is to determine in a controllable way a highly detailed, globally consistent wrinkle field from arbitrary geometric deformations of a cloth mesh.…”

Artist-Oriented Real-Time Skin Deformation Using Dynamic Patterns

“…Li et al [10] presented a method to generate wrinkles on a face based on the deformation of the keynodes and wrinkle lines specified by the user. Loviscach [11] developed a method to generate wrinkles over a cloth mesh using sinusoidal curves based on the wrinkle magnitude and direction computed for each vertex from the compression of the cloth mesh. These methods generate wrinkles based on the compression of the geometry.…”