Particle system based on GPU to simulate rain and snow is widely used in virtual scene simulation for its high efficiency.
在虚拟场景中采用基于GPU的粒子系统来模拟雨雪，因其效率较高，得到了广泛的应用。
In distributed simulation system, one node connects with the others through message. In many simulation systems, 3d terrain virtual scene takes part in the whole process as a very important part.
分布式仿真系统中，各节点之间通过消息互相交流信息，3维地形虚拟场景通常在大量的仿真系统中作为重要的对象参与仿真。
This paper introduces the concept and classification of the Virtual Manufacturing and explanes its key technologies, including 3d modeling, displaying of the 3d scene and simulation of the 3d motion.
文章介绍了虚拟制造的概念和分类，并阐述了其关键技术，包括三维建模、三维场景显示和三维运动模拟。
The rendering of 3D terrain scene is playing a key role in many research fields such as virtual reality, geographic information system and simulation system, etc.
三维地形场景实时绘制在虚拟现实、地理信息系统、仿真系统等领域中占有十分重要的地位。
Now better fog effect has been gained in practice and the archivement has far-reaching significance to the study of the fog simulation in 3D virtual scene.
在目前的实际应用中，我们已经取得了较好的雾化效果，这对虚拟场景中雾的模拟的研究有着深远的意义。
The thesis studies the VR modeling techniques of virtual scene and 3D sound according to the development of Visual Vehicle Simulation System.
论文结合汽车驾驶模拟器视景系统的开发，对虚拟场景中的几何建模技术、声音建模技术进行了研究。
A typical VR system can realize simulation of real scene in which visitors inaccessible to the real site can enter a virtual environment and interact with it.
典型的虚拟现实系统可以实现实景仿真，让无法到实地参观的人走入虚拟环境，并与虚拟环境产生交互。
A typical VR system can realize simulation of real scene in which visitors inaccessible to the real site can enter a virtual environment and interact with it.
典型的虚拟现实系统可以实现实景仿真，让无法到实地参观的人走入虚拟环境，并与虚拟环境产生交互。
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