真实感三维头发的建模及动态模拟算法研究
发布时间：2019-01-21 19:20
【摘要】： 当前计算机技术迅速发展,计算机创造的虚拟人在电影、游戏、广告等领域都有着极其广泛的应用。作为虚拟人研究的一个部分,头发的仿真和动态实现十分复杂,几乎涉及了计算机图形学技术的各个方面,具有非常重要的理论价值。如何实现头发的绘制以及如何进行头发造型和动态模拟一直是计算机图形学领域的一个非常具有挑战性的问题。 本文主要内容包括头发建模、发型设计、头发的动态模拟等,设计了一个可支持多种发型的框架,实现了一种实时性强仿真度高的头发动态模拟算法,并且能够在图形硬件的支持下获得更快的速度。在头发建模方面,采用了发线模型来表示头发,把头发视为马尔可夫链。在发型设计方面,使用了点约束、轨迹约束、方向约束三种约束方法对头发进行造型,模型的结构简单,能够支持多种发型。在头发的动态模拟方面,使用了Byoungwon Choe的弹簧头发丝模型,在原来的头发丝模型基础上,添加了线性弹簧和角度弹簧,这是一种基于物理的动态模拟技术。 本文算法简洁,效率高,可以实现多种发型的高质量实时绘制以及发型的动态模拟。算法实现时,使用了OpenGL、wildMagic4席和0sg为作为开发工具,具有较好的可移植性,经实验表明,能在普通的硬件配置上,实现高质量的发型设计和动态模拟。
[Abstract]:With the rapid development of computer technology, virtual human created by computer has been widely used in film, game, advertisement and so on. As a part of the research of virtual human, the simulation and dynamic realization of hair is very complicated, which almost involves all aspects of computer graphics technology, and has very important theoretical value. How to realize the drawing of hair and how to model and simulate the hair dynamically has been a very challenging problem in the field of computer graphics. The main contents of this paper include hair modeling, hairstyle design, hair dynamic simulation and so on. And can get faster speed with the support of graphics hardware. In the aspect of hair modeling, the hair line model is used to represent the hair, and the hair is regarded as a Markov chain. In hairstyle design, three constraint methods, point constraint, locus constraint and direction constraint, are used to shape hair. The model is simple in structure and can support multiple hairstyles. In the aspect of dynamic simulation of hair, Byoungwon Choe's spring hair model is used. Linear spring and angle spring are added on the basis of the original hair model, which is a kind of dynamic simulation technology based on physics. The algorithm is simple and efficient. It can realize high quality real-time rendering of multiple hairstyles and dynamic simulation of hairstyles. When the algorithm is implemented, OpenGL,wildMagic4 and 0sg are used as development tools, which has good portability. Experiments show that it can achieve high quality hairstyle design and dynamic simulation in common hardware configuration.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TP391.41
本文编号：2412954
[Abstract]:With the rapid development of computer technology, virtual human created by computer has been widely used in film, game, advertisement and so on. As a part of the research of virtual human, the simulation and dynamic realization of hair is very complicated, which almost involves all aspects of computer graphics technology, and has very important theoretical value. How to realize the drawing of hair and how to model and simulate the hair dynamically has been a very challenging problem in the field of computer graphics. The main contents of this paper include hair modeling, hairstyle design, hair dynamic simulation and so on. And can get faster speed with the support of graphics hardware. In the aspect of hair modeling, the hair line model is used to represent the hair, and the hair is regarded as a Markov chain. In hairstyle design, three constraint methods, point constraint, locus constraint and direction constraint, are used to shape hair. The model is simple in structure and can support multiple hairstyles. In the aspect of dynamic simulation of hair, Byoungwon Choe's spring hair model is used. Linear spring and angle spring are added on the basis of the original hair model, which is a kind of dynamic simulation technology based on physics. The algorithm is simple and efficient. It can realize high quality real-time rendering of multiple hairstyles and dynamic simulation of hairstyles. When the algorithm is implemented, OpenGL,wildMagic4 and 0sg are used as development tools, which has good portability. Experiments show that it can achieve high quality hairstyle design and dynamic simulation in common hardware configuration.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2010
【分类号】：TP391.41
【引证文献】
相关期刊论文 前1条
1 於俊;汪增福;;极低码率下的2D-3D人脸视频编解码[J];电子学报;2013年01期
，本文编号：2412954
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