Abstract
The simulation technology of 3D cloud can be the ideal method to meet both making human visual scenes realistic and generating weather radar images in flight simulations. This paper describes a 3D cloud simulation method and technology that focuses in three aspects of cloud modeling, lighting and rendering. Firstly, the 3D cloud was modeled in a particle system to specify the atmosphere characteristics of cloud in natural world, then the textures were mapped to the particles to improve the cloud authentic and the lighting model was established to make the cloud environments realistic. Finally, the impostor technology was used to accelerate the rendering speed. The implementation on PC platform shows that the method and technology can generate realistic 3D cloud and the real time ability is satisfied.
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