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A method and device for generating crater terrain based on Wally noise

A technology for craters and topography, which is applied to instruments, calculations, image data processing, etc., can solve problems such as inappropriateness and cumbersome steps

Active Publication Date: 2021-04-20
SNAIL GAMES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when using the above method to generate a terrain scene with craters, the returned height value is not very suitable, and the required steps are very cumbersome

Method used

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  • A method and device for generating crater terrain based on Wally noise
  • A method and device for generating crater terrain based on Wally noise
  • A method and device for generating crater terrain based on Wally noise

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Embodiment Construction

[0036] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0037] figure 1 It is a flow chart of the crater terrain generation method based on Wally noise according to the present invention, and the following will refer to figure 1 , the method for generating crater terrain based on Wally noise of the present invention is described in detail.

[0038] In step 110, grid points are generated according to a fixed step size.

[0039] In this step, regular grid points are generated according to a fixed step length: the grid points generated under the two-dimensional plane are distributed in squares, and the grid points generated under the three-dimensional stereo are distributed in cubes.

[0040] At step 120, the grid points ...

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Abstract

A method and device for generating crater terrain based on Wally noise, the method comprising the steps of: generating grid points according to a fixed step; randomly moving the grid points, and the moving distance is less than half of the fixed step; One-half of the distance between the grid point and the nearest grid point is used as the radius of a random circle with each grid point as the center of the circle, and a random circle is generated; based on the preset coordinate position and the preset height ratio value, Calculate the height value of the preset coordinate position; generate the crater terrain according to the height value of the preset coordinate position and a random circle. The crater terrain generation method and device based on Wally noise of the present invention outputs a height value corresponding to the sampling point based on the input coordinate value of a sampling point, so that craters can be randomly generated in the terrain scene, and then used to simulate The effect of craters or volcanic craters.

Description

technical field [0001] The present invention relates to the technical field of terrain scene simulation, in particular to a method and device for generating crater terrain based on Wally noise. Background technique [0002] In computer graphics, the method for three-dimensional modeling of a flat terrain or a spherical planet is to give a plane position coordinate or the latitude and longitude coordinates of a spherical planet, and then return the height value corresponding to the given coordinate. [0003] The above method is based on Worley noise with certain modifications. Worley noise, also known as cell noise, is a method of dividing spatial regions according to the sphere of influence of grid control points. Wally noise is often used to generate textures for objects such as cells, water waves, and rocks. [0004] However, when using the above method to generate a terrain scene with craters, the returned height value is not very suitable, and the required steps are ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/05
CPCG06T17/05
Inventor 叶峰陆利民
Owner SNAIL GAMES
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