Research Of Virtual Ocean Scene Based On Realistic Graph Technology

Simulation of natural scenes is one of the greatest challenges in computer graphics, and it is applied widely in CG cartoon,games,films,texture making,virtual reality and engineering domain. Ocean waves are an important part of natural scenes.The simulation of ocean water has become the most important tool of computer games, virtual reality and films making.On the other hand, the research of ocean water simulation is significant not only for computer graphics but also for hydraulics, hydrodynamics, wave mechanics and oceanography research.With the development and application of virtual-reality, real-time 3D graphics system and programmable GPU on personal computer platform, the research of ocean water simulation have been made great progress. First of all, the thesis introduces the process of virtual reality and the research of real-time ocean water rendering. With that, the author analyzes the current ocean water models, and then puts the algorithm: First of all, Perlin noises of different frequencies and cosine waves are introduced to create the ocean height field, then to calculate the ocean height through interpolation, and then, through Projective Grid algorithm to improve the performance of the demo, finally, we can make the noticeable ocean scenes by adding the lighting model. At last, according to above methods, an ocean waves demo system is realized.Experiment results show that, this method can make the noticeable image and considerable FPS as well.