Ground surface modifier drawing optimizing method

An optimization method and modification technology, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as slow sorting, achieve the effects of improving efficiency, preventing GPU waiting, and improving drawing efficiency

Inactive Publication Date: 2012-07-04
DALIAN ZHAOYANG SOFTWARE TECH
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AI Technical Summary

Problems solved by technology

And to achieve the correct blending effect, it is also necessary to sort the drawn objects according to the distance from the camera, which is also very slow

Method used

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Embodiment Construction

[0022] one A drawing optimization method for ground surface modifiers, which provides an alpha channel for adjusting grass with noise texture, and uses alpha testing technology to draw; since the ground surface modifier is different from the distance of the camera, the effect of each modifier is different, by adjusting the alpha The threshold value of the test is linearly interpolated according to the distance to achieve better results; and in order to ensure the batch drawing, this value is stored in an apha map corresponding to the surface modification number one by one, and the shader is used to Perform batch surface modifier painting.

[0023] The steps of the drawing optimization method of the surface modifier are as follows:

[0024] (1) Number all surface modifications in the terrain;

[0025] (2) Store the adjusted alpha in the vertex stream;

[0026] (3) According to the desired drawing effect, make a noise texture to adjust the alpha channel of the grass;

[0027...

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Abstract

The invention relates to the technical field of the computer graph, in particular to the large-scale simulated terrain system drawing optimization. Compared with the traditional alpha mixing method, the merging method provided by the invention has the advantages that the drawn model dose not need to be sequenced so that the efficiency is greatly improved, all the ground surface modifiers of the same type can be drawn by batch by adopting the multiflow so that the GPU calling times is reduced, the GPU waiting is prevented and the drawing efficiency is improved, the imperfect alpha testing method is adopted so that the traditional alpha mixing effect is also achieved to some extent, a channel graph is adopted so that any distortion effect can be completely covered, and the calculating speed of the alpha testing method is higher than the calculating speed of the alpha mixing method.

Description

[0001] technical field [0002] The invention relates to the technical field of computer graphics, and more specifically, relates to the rendering optimization of a large-scale rendering simulation terrain system. Background technique [0003] Terrain system is an important part of computer rendering simulation at this stage, and it has been playing an important role in the production of various large-scale 3D online games and various simulation rendering software. [0004] With the continuous improvement of the rendering effect, the terrain becomes more and more complex, and various rendering techniques appear to improve the rendering effect of the terrain. Such as terrain highlights, terrain shadow drawing, adding surface modifiers, etc. But with the addition of these rendering technologies, terrain rendering has higher and higher hardware requirements. Although the improvement of computer hardware capabilities and the improvement of rendering technology, it is still no...

Claims

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Application Information

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IPC IPC(8): G06T17/05
Inventor 温宏梅
Owner DALIAN ZHAOYANG SOFTWARE TECH
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