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

A 3D scene and ocean technology, applied in 3D image processing, details involving 3D image data, image data processing, etc., can solve problems such as difficulty in meeting real-time requirements, increasing data volume, and limited resource consumption, and achieve accurate simulation. The effect of the sea wave effect

Inactive Publication Date: 2017-10-24
ZHEJIANG KELAN INFORMATION TECH CO LTD
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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 transformat

Method used

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

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Embodiment Construction

[0035] The concrete realization of the present invention is as follows.

[0036] 1) The establishment of the marker layer.

[0037] In the global image, set the pixel value of the ocean area or the apha value of the apha channel of the image to 1, and set the apha value of the corresponding land area to 0. Based on the global image with ocean marks, create a mark layer to realize the tile cutting of the mark map, and then let it be dispatched as a layer when displaying the earth scene. The process of creating tiles is as follows for the labeled image figure 1 Create a quadtree in the form of quartering in the shown way, where the left side is the process of quartering an image, and the right side is the quadtree structure generated by layer-by-layer quartering of the image. The scheduling is based on tiles The tile level and position use the generated quadtree to call tiles at different locations to the scene for display.

[0038] After initializing the spherical data, add ...

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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...

Claims

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Application Information

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IPC IPC(8): G06T17/05G06T15/04G06T15/00G06T15/50G06T19/20
CPCG06T15/005G06T15/04G06T15/506G06T17/05G06T19/20G06T2200/04G06T2207/10016G06T2219/2012
Inventor 张延冰俞蔚
Owner ZHEJIANG KELAN INFORMATION TECH CO LTD
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