Method of realizing earth ocean water effect in three-dimensional scene

Abstract

The invention provides a method of realizing earth ocean water effect in a three-dimensional scene. The method comprises steps that step1, a labeled graph layer is established; step2, ocean wave textures are generated and loaded; step3, vertex conversion is carried out by a vertex shader; step4, pixel shading is carried out by a fragment shader; step5, the fused and mixed calculation of the surface colors, the textures, the illumination of the ocean is carried out to acquire drawing data. Compared with the prior art, the ocean wave effect is simulated accurately, and the simulation effect is extremely vivid.

Description

technical field [0001] The invention relates to the application field of computer graphics in the geographic information system (GIS), in particular to a method for realizing the water effect of the earth's ocean in a three-dimensional scene. Background technique [0002] With the popularization of the digital earth and the promotion of smart cities, the geographic information industry has attracted the attention and support of the government and enterprises, and has made great progress. The display effect requirements of the earth platform are also getting higher and higher, and the ocean occupies 71% of the earth's surface area. %, the simulation of ocean waves also has a wide range of application value in engineering and commercial fields, and the simulation of ocean currents has reached the point where it cannot be ignored. The hardware is continuously updated and iterated. The existing rendering hardware supports programmable pipeline rendering to control different rend...

AI Technical Summary

Problems solved by technology

Vertex physical modeling and dynamic model modeling of the ocean model to simulate dynamic water effects require a large amount of node data, and the vertex data is simulated and transformed to produce the effect of sea water waves, but it is especially valuable for geographic information display platforms where data bandwidth. The resource consumption caused by using a large number of vertex transformations to simulate real water effects cannot be ignored, which increases the amount of data and reduces the rendering rate, making it difficult to meet real-time requirements. Therefore, the present invention uses a geometric modeling method for the geographic information platform Design a method of earth ocean water effect with limited resource consumption while satisfying people's high sense of experience

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