Method and system for simulating atmosphere

An atmosphere and color technology, applied in the field of virtual three-dimensional earth, can solve problems such as high system performance requirements, difficult real-time implementation, complex algorithms, etc., achieve good rendering effect, and simulate the effect of atmospheric color in real time

Active Publication Date: 2012-10-24
北京锦颂创逸技术科技有限公司
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Problems solved by technology

[0005] The algorithm is relatively complex, the amount of calculation is large, the req

Method used

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  • Method and system for simulating atmosphere
  • Method and system for simulating atmosphere
  • Method and system for simulating atmosphere

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] Embodiment 1 of the present invention provides a method for simulating the atmosphere, such as figure 1 shown, including the following steps:

[0045] Step S101, acquiring initial colors of collection points in the atmosphere.

[0046] Step S102, generating a color factor according to the RGB value of the initial color, specifically including: obtaining the maximum component value and the minimum component value of the RGB value of the initial ...

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Abstract

The embodiment of the invention discloses a method and system for simulating the atmosphere. The method comprises the following steps: the initial color of a collection point in the atmosphere is obtained; a color factor is generated according to an RGB (red green blue) value of the initial color; a first intersection point and a second intersection point are obtained; a color imitating factor is generated according to a point of sight, the collection point, the first intersection point and the second intersection point; the imitated color of the collection point is generated according to the initial color, the color factor and the color imitating factor; and the imitated color is filled in the collection point. According to the embodiment of the invention, the imitated color is generated by calculating the color imitating factor of the atmosphere collection point in a geography atmosphere model, the color of the atmosphere is simulated efficiently in real time, and a better rendering effect is obtained.

Description

technical field [0001] The invention relates to the field of virtual three-dimensional earth, in particular to a method and system for simulating the atmosphere. Background technique [0002] The atmosphere is also called the atmosphere, and the earth is surrounded by this thick layer of atmosphere. The composition of the atmosphere is mainly nitrogen, accounting for 78.1%; oxygen accounting for 20.9%; argon accounting for 0.93%; there are also a small amount of carbon dioxide, rare gases (helium, neon, argon, krypton, xenon, radon) and water steam. The air density of the atmosphere decreases with altitude, the higher the air the thinner it is. The thickness of the atmosphere is about 1000 kilometers or more, but there is no obvious boundary. [0003] The simulation of the atmosphere is very important to the virtual three-dimensional earth system. The more commonly used atmospheric simulation methods are to use the Rayleigh scattering model and the MIE scattering model. ...

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Application Information

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IPC IPC(8): G06T17/05
Inventor 胡守刚
Owner 北京锦颂创逸技术科技有限公司
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