Research On Modeling Technology Of Virtual Ocean Scene

The simulation of the ocean environment has played an important role in the scientific research and project application.attention.Compared with other natural phenomena,the simulation of ocean waves motion shows its significant advantages.People pay more and more attention on how to develop the ocean environment both has the vivid effect and real time.According to these demands,the article studies the generating of the virtual ocean environment.The ocean rendering is used to be operated slowly,to solve this problem,this paper take LOD technology which could reduce the complexity of the grid to improve the speed of the picture drawing frame.The experimental results prove LOD technology can effectively improve the frame rate.FFT spectrum has been formed and simulated.Compared with these two models at the scene's effect and the rate of the frame,the simulation results indicates that the wave model based on FFT has the higher caculation efficiency,and can show the wave's form at all kinds conditions of the sea.Then,from the key formulas in last part,I have generated wave curves by utilizing Matlab.These curves expose many features of wave disturbance,all of analysis results are listed in the third chapter.Adding the lighting and the texture effect to the sea surface base on the FFT model,because of the magnitude caculation of the effect's rendering,the Cg technology is used to compile the program for GPU,some caculation is carried out by the GPU,so the CPU's burden is shared.It can both insure the simulation's real time and the picture's reality.For providing a more vivid and thoroughly virtual ocean scene,sky sphere is adopted instead of sky box to improve the effect of the ocean sky.At last,I accomplished my final result on my PC.In this process,Virtual Reality API and C++provide many components to achieve the final model.Also,LynX GUI performed the render and shade options.In the end,3D ocean waves motion model and rendering are realized in Visual Studio 2008.We developed a new extending wave module for Vega Prime.