OpenGL® SuperBible, Third Edition

Chapter 4. Geometric Transformations: The Pipeline

by Richard S. Wright, Jr.

WHAT YOU'LL LEARN IN THIS CHAPTER:

How To	Functions You'll Use
Establish your position in the scene	gluLookAt
Position objects within the scene	glTranslate/glRotate
Scale objects	glScale
Establish a perspective transformation	gluPerspective
Perform your own matrix transformations	glLoadMatrix/glMultMatrix
Use a camera to move around in a scene	gluLookAt

In Chapter 3, “Drawing in Space: Geometric Primitives and Buffers,” you learned how to draw points, lines, and various primitives in 3D. To turn a collection of shapes into a coherent scene, you must arrange them in relation to one another and to the viewer. In this chapter, you start moving shapes and objects around in your coordinate ...