|
With the development of computer graphics, computer graphics has become a fast, high-quality simulation of things solid theoretical foundation. The realistic graphics simulation computer hygiene has been the focus of research in computer graphics, more realistic simulation of irregular objects and phenomena is one of the research focus. The particle system has become one of the simulated irregular objects recognized as the most successful method, its advantages of intuitive, efficient, mature and stable technology. Realistic graphics simulation is based model, thus the fuzzy objects analog has been one of the difficulties of the graphics. Especially for some of the simulation of natural phenomena, such as flame, water, rain, snow, and this type of natural phenomenon due to its own characteristics with randomness, fuzziness, making it difficult to achieve with conventional physical modeling and geometric modeling method. However, these phenomena in the simulation of realistic graphics is an important and indispensable elements, thus irregular things analog has been one of the hot spots of realistic graphics simulation. Despite the difficulties, but efforts to explore the domestic and foreign scholars, has made considerable progress. This study is a particle system to simulate the precipitation phenomena, the focus of research to produce a chemical reaction simulation of precipitation phenomena in the liquid. The one hand, taking into account the reaction occurs in the liquid, a pronounced effect of the movement of the liquid will have a fine precipitate particles, based on the well-known formula Navier - Stokes formula (Navier-Stokes Equation) solving fluid movement phenomenon as research focus one. By studying the existing sedimentation model, analyze their advantages and disadvantages, and based on the precipitation of a new model (GFS) model. The model not only a detailed analysis of the forces of the particles in the precipitation phenomenon, also added to the instrument models and water effects, realistic simulation. Irregular object simulation has been one of the difficulties of realistic graphics simulation To simulate precipitation phenomenon is even more challenging. Navier - Stokes equation (Navier-Stokes Equation) the real analog motion law of the liquid to ensure the accuracy of the simulation. This method is simple and intuitive, and can greatly reduce the computational complexity for precipitation particles to ensure that the speed of calculation, simulation irregular things has important scientific significance and research value.
|