虚拟交通环境中的树木仿真风效研究

Research on wind simulation of trees under the virtual traffic environment

将现实中的交通环境进行虚拟仿真时必须利用虚拟模型构建环境中实际存在的树木,为了提高其真实度,在建立契合实际的树木模型的同时,也需要考虑树木在风中的动态效果。为此,文章将选用Speed Tree三维植物建模软件所生成的树木模型导入到虚拟交通环境仿真系统中,并通过加载相关风场模型,利用过程法结合一系列的函数方程,模拟树木在风中的动态效果,使得整个虚拟交通环境场景的沉浸感得到大幅度增强。

Virtual reality simulation of the traffic environment must use the virtual model to build the environment in the actual existence of trees.In order to improve its authenticity,the dynamic effect of trees in the wind while establishing a practical tree model should be considered.SpeedTree 3D plant modeling software is chosen to create the tree model in this paper.The model will be imported into the virtual traffic environment simulation system and loaded the related wind field model.Then,the model will be dealt with the process method combined with a series of function equation to simulate the dynamic effect of trees in the wind,making the immersion of the entire virtual traffic environment scene has been greatly enhanced.