Extended interactive and procedural modeling method for ancient chinese architecture
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Extended interactive and procedural modeling method for ancient chinese architecture Zhongtian Hu1 · Xujia Qin1 Received: 11 March 2020 / Revised: 15 August 2020 / Accepted: 26 August 2020 / © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract The manual modeling of ancient Chinese architecture is long and tedious work for artists due to the strict and complex construction rules. Existing procedural modeling methods can reduce the modeling workload; however, only limited types of ancient buildings can be made, and users can only edit the building frame and not the components. Therefore, we have improved the existing methods to solve these problems. In addition, we propose an ancient building frame extraction method that can extract a building frame from an existing nonsegmented building mesh, thereby providing users with an editable initial frame. Furthermore, we propose an automatic level of detail (LOD) method; building models made by our method can be automatically simplified without prefabricated low-poly proxies. The experimental results show that our method can be used to model different styles of ancient Chinese architecture. The building frames and components are easy to edit and can allow nonexpert users to construct a target architecture in minutes. The size of the saved file is greatly reduced compared to that of existing methods. Building frame extraction can significantly accelerate the modeling speed and improve the quality of users’ work. The proposed LOD method exhibits a higher performance than the existing method based on mesh simplification. Keywords Interactive modeling · Procedural modeling · Ancient chinese architecture · Level of detail
1 Introduction Ancient Chinese buildings are very special and important cultural markers in the long history of ancient China. The architecture of ancient buildings embodies the science, technology, culture, art and moral law of that time and plays an important role in world cultural Xujia Qin
[email protected] Zhongtian Hu [email protected] 1
College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou, China
Multimedia Tools and Applications
heritage. The forms of ancient Chinese buildings are complex and exquisite. For instance, the roof is one of the remarkable characteristics of Chinese architectural style and includes nine types, as shown in Fig. 1. Ancient Chinese craftsmen made full use of the wood to create the cornice structure of the roof. The cornice not only expands the area of the room to be illuminated but also facilitates drainage of rainwater and creates the unique charm of ancient Chinese architecture. In addition to roofs, ancient Chinese buildings can be classified into eight categories according to different body structures: ting, tai, lou, ge, xuan, xie, lang and fang, as shown in Fig. 2. Among them, ting is generally an open structure without walls and is mostly built on the roadside for pedestrians to rest, enjoy the shade or view the scenery; tai refers to open buildings b
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