A virtual simulation system and method for real-time representation of meteorological changes based on shaders

Abstract

The invention discloses a virtual simulation system and method for real-time representation of meteorological changes based on a shader. The method steps are as follows: S1 starts; S2 obtains weather data in a designated area; S3 parameterizes the weather data into parameter strings; S4 converts parameter characters The string is passed to the shader; S5 imports the 3D vegetation model and texture map into the 3D engine; S6 3D engine obtains the material object of the 3D vegetation model; S7 3D engine renders the 3D scene; S8 outputs the rendering result; S9 ends; the coloring The controller calculates and maps the vertices and pixel performance of the 3D vegetation model according to the parameterized meteorological data, so as to obtain different performances of the 3D vegetation model under different meteorological conditions. The present invention realizes the three-dimensional representation of various weather conditions based on a shader, solves the trouble of manually dragging and modifying the shader or prefabricating a large number of three-dimensional models under different weather conditions when the existing weather conditions change, saves manpower and material resources, and is in line with people's understanding of weather conditions Habits of perception of information.

Description

technical field [0001] The invention belongs to the technical field of meteorological visualization, and in particular relates to a virtual simulation system and method for real-time representation of meteorological changes based on a shader. Background technique [0002] With the vigorous advancement of meteorological informatization, 3D visualization has gradually demonstrated its advantages over 2D display, such as more intuitive and vivid, and more accurate and accurate representation of the weather. [0003] At present, the 3D visualization technology is becoming more and more mature. There are many professional 3D engines on the market, which can be used to realize the display, interaction and data processing of 3D visualization. In the 3D engine, all graphics drawing must be realized through shaders. Shader technology is widely used in computer graphics and can be used to enhance the performance of 3D visualization. The shader is actually a program, which is responsi...

AI Technical Summary

Problems solved by technology

[0004] At present, the meteorological performance is mostly through two-dimensional performance. The existing system based on two-dimensional dynamic image display weather needs to set up many different models for different seasons and weather in advance. , People in summer, people in autumn, people in winter, in the same season, you need to set up people in rainy days, people in sunny days, people in cloudy days, etc., the system is cumbersome; although the method of displaying weather based on two-dimensional dynamic images , the swing amplitude and frequency of the vegetation model can also be adjusted according to the wind force and direction, but the adjustments that can be made are limited to the swing amplitude and frequency. It is difficult to change the shape of the model itself, which is not intuitive enough. The model displays wind force, wind direction, rainfall and other meteorological information at the same time, so it is necessary to prepare a variety of two-dimensional dynamic models in advance, and display different meteorological information through different models, which increases the complexity of the system

[0005] There are very few existing 3D-based meteorological performances, and the existing 3D representations only achieve individual wind performance effects or separate humidity performance effects through shaders, and they are basically adjusted in the 3D engine and cannot be dynamically modified. effect, or set different 3D models in advance for sunny days, rainy days, cloudy days, snowy days, etc., and set up different 3D rendering modules for each model, and switch between different 3D models for display according to changes in weather information , and even sometimes, it is necessary to manually drag and drop to modify the shader, the system is complex, the performance of weather information is not good, and the work efficiency is low.

It can be seen that there is currently no independent system of meteorological performance files, which is very unfavorable for the development of 3D visualization of meteorological performance

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