Abstract
Fog simulation is an important research topic in the field of three-dimensional simulation.It puts forward high requirements on real-time performance as well as realistic rendering results for complex three-dimensional simulation system.By analyzing the traditional simulation methods of fog,the authors proposed a Graphic Processing Unit(GPU)-based method to simulate the fog effect in real-time.The basic idea was to employ an exponential function to simulate the fade of fog with height.Then a GPU implementation of this formula was presented.And finally the fog color was blended with the fragment color according to the fog factor.The experimental results show that the proposed method can generate strongly realistic fog in real-time.
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