Lecture 3:
Basic Transformations

Contents

	Lecture Objectives	3-1
	Camera Analogy	3-2
	The Role of Matrices	3-3
	Modeling Transformations	3-4
	Lab: Modeling Transformation Exercise	3-5
	Translation	3-6
	Rotation	3-7
	The right-hand rule	3-8
	Scaling	3-9
	Example: transforms.c	3-10
	Projection Transformations	3-11
	Lab: Projection Transformation Exercise	3-12
	Orthographic Projections	3-13
	A 3D Experiment	3-14
	Example: orthoRotate.c	3-15
	Observations	3-16
	Perspective Projection Using glFrustum	3-17
	Perspective Projection Using gluPerspective	3-18
	Using Perspective Projections	3-19
	Example: perspectiveRotate.c	3-20
	Matrix Stacks	3-21
	Vertex Transformation	3-22
	Who's Who?	3-23
	Matrix Modes	3-24
	A Shortcut	3-25
	Matrix Stack Operations	3-26
	Loading the Identity Matrix	3-27
	Using the ModelView Matrix Stack	3-28
	Example: matrixmodes.c	3-29
	Lab: Modeling and Projection Transformations	3-30
	Lecture Summary	3-31
	Sample Solutions For Transformation Exercises	3-32
	OpenGL C Quick Reference	3-33