三维仿真中高速物体的速度感表现方法研究

Methods Study on Representing the Sence of Speed of the High-Speed Object in 3D Simulation Animation

在拍摄战斗机等物体的高速飞行和旋转过程中,真实的拍摄受制于环境等因素一般为固定拍摄或跟踪拍摄,三维虚拟场景下的仿真高速运动和虚拟拍摄可以不受环境等因素影响,有更多的速度表现方式,但目前没有比较通用的速度感表现规律。基于人类对运动的视觉感知理论,将真实相机的拍摄方式应用于虚拟摄像机,研究不同的单镜头下如何通过虚拟摄像机的拍摄与取景将三维场景中仿真物体的高速运动更好地加以表现,实验过程中以战斗机直线飞行仿真动画及离心机旋转仿真动画为例,采用控制变量法与等级排列法,最终得到一系列较为实用的速度感表现方法。

In the process of shooting high-speed flight and rotation of objects such as fighter jets,limited by envi-ronmental factors,real shooting is generally fixed shooting or tracking shooting.The simulation of high-speed motion and virtual shooting in 3D virtual scene can be independent of environment and other factors,so there are more ways of speed expression,but there is no universal law of speed perception expression at present.Based on the theory of human visual perception of motion,this paper applied the shooting mode of real camera to virtual camera,and studied how to better express the high-speed motion of simulated objects in 3d scenes through the shooting and framing of vir-tual cameras under different single lenses.The experiment used control variable method and ranking method,and the simulation animations of straight flight of fighter jet and centrifuge rotation were taken as examples.Finally,a series of more practical methods to express the sense of speed were obtained.