Perlin Noise/zh CN: what changed

Revision 1 to 2. Removed lines have a minus sign; added lines have a plus sign.

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1	1		This page is the start of a tutorial about using Perlin Noise on LCL applications to generate natural looking images. It will cover both basic theory and real usage examples, with a focus on compilable examples.
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3	3		~~这个页面是关于LCL应用程序使用柏林噪声来生成自然图像的教程。它包括基础理论和实际使用的例子，重点是编译的例子。~~
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5	5		Perlin Noise was invented by [Ken Perlin](http://mrl.nyu.edu/~perlin/) to generate textures for a movie called Tron. Today it is widely used on movies and video games to produce natural looking smoke, landscapes, clouds and any texture including marble, irregular glass, etc.
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7	7		~~[Ken Perlin](http://mrl.nyu.edu/~perlin/) 在为电影Tron生成纹理时发明了柏林噪声。如今，它被广泛应用于电影和视频游戏中的自然烟雾，山水、云和任何纹理，包括大理石、不规则玻璃等。~~
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9	9		## 入门
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11	11		Perlin Noise is based on the idea of fractals, that things in nature show different degrees of change. On a rocky mountain landscape for example when can see changes with a very big amplitude, which are the mountains themselves. Smaller changes represent irregularities on those mountains and even smaller ones represent rocks.
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13	13		~~柏林噪声是基于分形的思想，事物在本质上呈现出不同程度的变化。以岩石山为例，可以看到非常大的幅度变化，这是山本身。较小的变化代表了那些山的凹凸，甚至更小的代表岩石。~~ ![](/wiki-images/b/b6/Mountain_landscape.png)
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15	15		## 第一个例子
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17	17		This application demonstrates a simple noise function with the following properties: ~~这个应用程序演示了一个简单的噪声函数，它具有以下属性：~~
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19	19		- Only 1 harmonic present~~只呈现1个谐波~~
20	20		- 振幅 250 像素
21	21		- 波长 20 像素
22	22		- 频率 0.05
23	23		- You can use a combo box to choose between Linear, Cossine and Cubic interpolation
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25	25		~~你可以在组合框中选择线性，余弦、三次插值。~~
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27		-	~~<figure>~~
28		-	~~<img src="Noise1D.png" title="Noise1D.png" />~~
29		-	~~<figcaption>Noise1D.png</figcaption>~~
30		-	~~</figure>~~
	27	+	![](/wiki-images/8/86/Noise1D.png)
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32	29		文件:
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34	31		- noise1d.lpi
35	32		- noise1d.dpr
36	33		- noise.pas
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38	35		## 持续示例
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40	37		This application demonstrates how to sum many noise functions to get a perlin noise function. ~~这个应用程序演示了多个噪声函数实现的柏林噪声。~~ 它有以下属性：
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42	39		- 3 harmonics present~~显现3个谐波~~
43	40		- 振幅 250, 125 和 62 像素
44	41		- 波长 20, 10, 和 5 像素
45	42		- 频率 0.05, 0.1, 0.2
46	43		- You can use a combo box to choose between Linear, Cossine and Cubic interpolation
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48	45		~~你可以在组合框中选择线性，余弦、三次插值。~~
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50		-	~~<figure>~~
51		-	~~<img src="Perlin1D.png" title="Perlin1D.png" />~~
52		-	~~<figcaption>Perlin1D.png</figcaption>~~
53		-	~~</figure>~~
	47	+	![](/wiki-images/8/85/Perlin1D.png)
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55	49		文件:
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57	51		- perlin1d.lpi
58	52		- perlin1d.dpr
59	53		- noise.pas
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61	55		## 使用柏林噪声创建纹理
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63	57		It is possible to create tilable textures of stone, water, wood... with Perlin noise. ~~它可以创建tilable纹理的石头、水、木头...与柏林噪声。~~
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65	59		这里是如何做到这一点的教程: [[BGRABitmap tutorial 8]]
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67	61		## SVN
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69	63		你可以使用下面的命令下载源代码、示例：
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71	65		svn co <https://lazarus-ccr.svn.sourceforge.net/svnroot/lazarus-ccr/examples/noise> noise
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73	67		## 外部链接
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75	69		- [柏林噪声理论](http://freespace.virgin.net/hugo.elias/models/m_perlin.htm)。
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77	71		---
78	72		From the Free Pascal wiki, page "Perlin Noise/zh CN", as it stood on 2015-07-09 after a change by FTurtle, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).
79	73		Category: Game Development/zh CN
80	74		Category: Graphics/zh CN
81	75		Category: Lazarus-CCR/zh CN
82	76		Category: SciTech/zh CN
83	77		Category: Tutorials/zh CN
84	78		Category: zh

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