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Terrain Tutorial
地形教程

Simulating Lighting - Implementation Details
模拟光照 - 实现细节

The terrain library has a set of functions to deal with this problem. The following variables were defined to store the required values.
地形库里有一个函数集来处理这个问题。下面的变量储存了相关的需求值。...

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Terrain Tutorial
地形教程

Simulating Lighting Computations
模拟光照计算

Lighting a surface can be a costly operation. In this section it will be shown how to compute the colors of a vertex as if it was being lit by a light source. For the sake of simplicity only the diffuse component will be taken into account. Two types of light sources will be considered: Directional and Point lights.
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Terrain Tutorial
地形教程

Computing Normals
法线的计算

To apply lighting to a terrain, either using OpenGL lights, or simulating them, it is necessary to first compute normals. A normal is a vector that defines how a surface responds to lighting, i.e. how it is lit. The amount of light reflected by a surface is proportional ...

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Terrain Tutorial
地形教程

Height Maps From Images
从图像到高度图

Now that we know how to load an image lets see how to create and draw a height map. This section presents a set of functions from the terrain library that deal with height maps. First lets see how we can build a height map from an image.
既然我们知道如何加载一张图片了，让我们看看如何来创建和绘制高度图。这个章节展示了一些地形库中的函数，用来处理高度图。我们首先来看看如何从一张图像上创建高度图。
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Terrain Tutorial
地形教程

Source Code for the TGA library
TGA库源代码

You may use this library for whatever you want. This library is provide as is, meaning that I won't take any responsability for any damages that you may incur from its usage.
你可以随便怎么使用这个库，但我不承担这个库的bug给你带了的损失。...

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Terrain Tutorial

A TGA library
一个TGA库


This library is introduced here in order to make this tutorial self-contained. The library is pretty simple, handling only uncompressed images, RGBA or greyscale. No support for color palettes is provided. If you're interested in a full-blown TGA library I would suggest a ...

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原文来自:http://www.lighthouse3d.com/opengl/terrain/index.php3?introduction
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Terrain Tutorial
地形教程

Introduction
介绍

Terrain in computer graphics is certainly a hot topic. Since this is a fast growing field and there are many algorithms, this tutorial will always be work in progress. ...

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