机构地区: 南京理工大学计算机科学与技术学院
出 处: 《计算机工程与设计》 2007年第14期3446-3448,3452,共4页
摘 要: 虚拟人是虚拟场景中最为活跃的因素,但是虚拟人的动作却不能由用户灵活的个性化的设计,为此设计了一个基于VRML的虚拟人动作描述语言(VHADL),采用H-Anim标准构建了虚拟人的模型,定义3个参照系使得用户更准确的描述动作、指定参数,使用反向动力学来确定肢体位置,并定义元动作和一些复合算子来合成复杂动作,最后给出了一个送咖啡的例子。 Virtual human is the most active element of the virtual reality, whereas the actions of virtual human cannot be designed individually by user-selves. A VRML-based action description language of virtual human (VHADL) is proposed. The model of virtual human is constructed by the H-Anita standard, and three reference systems are defined for users to describe actions or assign parameters accurately, and the positions of some parts of body are assigned by Inverse Kinetics, what is more, complex actions are composed of some mate actions defined previously and some operators for combining. At last, an example of delivering coffee is shown.
关 键 词: 虚拟现实 虚拟人 动作描述 虚拟人构造标准 虚拟人动作描述语言
领 域: [自动化与计算机技术] [自动化与计算机技术]