Real-time flood disaster visual simulation method based on OpenGL

Abstract

The invention discloses a real-time flood disaster visual simulation method based on an OpenGL. A multi-phase fluid interaction simulation method combining a fluid simulation method based on texture change and a fluid simulation method based on a two-dimensional height field comprises the steps that firstly, the evolution of a flood water surface and the rolling effect of a cloud layer in the skyare achieved through the double-cache technology of OpenGL; then, particles in all the models are solved through a hydrodynamic equation, and a random process is established and used for generating rain and snow particles and controlling irregular movement of the particles; and finally, a three-dimensional simulation terrain is generated by using the grey-scale map file, and a terrain scene basedon real data is created. Real-time visual simulation based on real terrain data is carried out on flood disasters, and the sense of reality of the simulation effect is improved.

Description

Technical field [0001] The invention relates to the technical field of fluid simulation based on physics, and is oriented to the practical application of computer animation and visual simulation, and aims to realize the visual simulation of flood disasters, and provides a fluid simulation method based on texture change and a fluid simulation method based on a two-dimensional height field The method of combined multiphase fluid interaction simulation. Background technique [0002] With the development of virtual reality technology, the natural landscape simulation technology in virtual scenes has increasingly penetrated into people's daily work, study and life. Natural landscape simulation based on virtual reality belongs to the field of computer graphics and virtual reality. [0003] In the field of graphics, people have been trying to use computers to reproduce the real world around them. However, although the real world looks simple, it is extremely complicated. For some natura...

AI Technical Summary

Problems solved by technology

[0003] In the field of graphics, people have been trying to use computers to reproduce the real world around them. However, although the real world looks simple, it is extremely complex.

For some natural phenomena, people can use process description to obtain a certain effect, but for some phenomena, people cannot find a simple model to describe it. A more accurate physical description can truly reproduce its external visual phenomena

Images