Wrinkle synthesis for cloth mesh with hermite radial basis functions
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Wrinkle synthesis for cloth mesh with hermite radial basis functions A. Ait Mouhou1
· A. Saaidi1 · M. Ben Yakhlef1 · K. Abbad2
Received: 22 November 2019 / Revised: 20 August 2020 / Accepted: 26 August 2020 / © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Designing virtual clothing has received much attention recently due to the increasing need for synthesizing realistically dressed digital humans for various applications. Wrinkles are an important appearance feature of the garment in virtual environments. Generating such wrinkles currently requires a computationally expensive simulation or specialized design skills. We present a new geometric method for adding believable wrinkles to existing virtual clothing. The key novelty of our work is to use Hermite Radial Based Functions (HRBF) to reconstruct an approximation of the clothing mesh. Our method takes advantage of angles between gradients of adjacent HRBF scalar fields to trace spatially and temporally coherent wrinkle curves on a cloth mesh. We generate plausible wrinkle geometry using implicit deformers following the wrinkle curves. Our method can be used as a post-processing step on any garment simulation system. The results obtained demonstrate that our approach produces believable wrinkles and it is very satisfactory in terms of performance. The method is fully automatic and provides a large set of parameters that can be modified by the user in order to control the appearance of the resulting wrinkles in real-time and thus obtain the desired result. Keywords Cloth simulation · Wrinkle augmentation · Mesh deformation · Implicit modeling
A. Ait Mouhou
[email protected] A. Saaidi [email protected] M. Ben Yakhlef [email protected] K. Abbad [email protected] 1
FP of Taza/ Sidi Mohamed Ben Abdellah University, Tinghir, Morocco
2
FST/ Sidi Mohamed Ben Abdellah University, Tinghir, Morocco
Multimedia Tools and Applications
1 Introduction Wrinkles are an important appearance feature of the garment; they show the realistic deformation of the cloth. The cloth wrinkles represent a complex mechanical phenomenon. This phenomenon is characterized by non-linear behaviors and a high level of dynamics. One possible solution to this problem is physics-based virtual simulation [12, 13, 16]. These methods generate various types of cloth and achieve impressive high-quality results. However, they require costly numerical iterative computation and no longer allow for real-time wrinkles simulation. As alternative, the methods of wrinkles simulation using the interpolation of pre-existing samples have been proposed to overcome the complexity of physical methods [29, 33]. However, these approaches require an important database and tedious work by the artist. In addition, the direct control of the final model seems difficult. Geometric wrinkles augmentation methods are post-processing approaches that use compression analysis to add wrinkles to the cloth mesh [5, 25]. They formulate wrinkle synthe
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