Research on the Application of Digital Modeling Technology to the Innovative Design of Traditional Ethnic Clothing

This study takes digital modeling technology as the core and explores its application in the innovative design of traditional ethnic clothing.By integrating particle dynamics model, triangular mesh delineation algorithm and dynamic feature point co-tracking technology, three major modules of fiber fabric simulation, garment-human body motion co-tracking and immersive virtual interaction system are constructed.Experimental validation shows that the fabric simulation method based on 3D mesh convolution outperforms the traditional physical simulation and deep learning model in terms of Hausdorff distance error (2.381 mm for flag, 5.318 mm for teapot, 5.343 mm for hanging cloth) and time consumption (3.62 s for flag, 2.84 s for teapot, 3.31 s for hanging cloth), and the efficiency of vertex extraction is improved by 40.5%, which significantly reduces the computational cost.Factor analysis further extracted the three core evaluation factors of "fabric characteristics", "sample structure" and "dynamic effect" (cumulative variance contribution rate of 90.17%).The results of subjective evaluation by users show that the page layout (4.35~4.88ratings by ordinary users and 4.78~4.94ratings by administrators) and the comprehensiveness of functions (4.27~4.84ratings by ordinary users and 4.57~4.88ratings by administrators) of the virtual interactive display system are highly recognized.The research results provide highly efficient technical support for the digital heritage and innovative design of ethnic costumes, with both theoretical and applied values.Index Terms particle dynamics modeling, triangular mesh partitioning, dynamic feature point cooperative tracking, traditional ethnic clothing I. IntroductionTraditional national costume is an important form of national culture, which has the characteristics of both material culture and spiritual culture [1], [2].However, with the rapid development of social economy, national culture has been influenced, eroded and assimilated in the social environment, gradually showing marginalized characteristics, and national costumes are facing the dilemma of being lost [3]- [5].Under the role of information technology, the protection and promotion of national culture has a new direction [6].Digital innovation design for traditional national costumes is the main means to ensure the cultural vitality of national costumes, expand cultural influence and strengthen the role of cultural protection, and it is also the necessary way [7]- [9].From the point of view of national costume culture protection, there is a serious shortage of technical input in China, especially for ethnic minorities that are relatively concentrated in the distribution area, the technical force that can really be invested in cultural protection and cultural development is very limited, and some of the means of cultural protection stays in the aspect of image data retention [10]- [13].Whether it is the collection of cultural phenomena or cultural dissemination, due to fragmentation and unsystematic, greatly affecting the vitality of cultural development [14], [15].In recent years, with the continuous development of science and technology and the continuous updating of the clothing industry, digital modeling technology has gradually become a hot topic in the innovative design of traditional ethnic clothing [16]- [18].Digital modeling technology, is a comprehensive technical system that generates, displays and manages the whole process of clothing design and other information through the computer, through the introduction of digital modeling technology, traditional ethnic clothing can realize the information management of the whole life cycle of apparel design, which not only improves the efficiency of the design and production of traditional ethnic clothing, but also enables the clothing industry to be more environmentally friendly and sustainable development [19]-[22].This research centers on three core modules, namely fabric simulation, dynamic feature tracking and virtual interaction system, to realize the precision, dynamization and immersion of dress design through multidisciplinary cross-methods.Aiming at the complex fabric structure and texture characteristics of traditional national costumes, a fiber fabric simulation method based on particle dynamics and triangular mesh division is proposed.The interweaving process of warp and weft yarns is simulated by particle dynamics model, and the light and shadow