Copyright by Danny Kodicek, John Patrick Flynt

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Chapter 20. Lighting and Textures

Overview

In this chapter, instead of looking at mathematical essentials of objects as abstract entities in space, you’re going to look at how an object is made to come to life on a monitor. At the heart of this matter is lighting, for to create the illusion of solidity, you need to understand the nature of light and how it can be simulated in real time.

Light

Before a 3-D scene can be drawn to the screen, you must know the position of each polygon that makes up the objects in the scene and what colors to use when drawing the polygons. Colors are made possible by lighting. Color is simply a use of light in the context of the monitor. To understand how this is so, in the ...

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