3D Objects in OpenGL

College of Science 

Computer Department 

2011 - 2012 

3D Objects in OpenGL 

Lecturer: Jamal A. Hussein 

1

GLUT 3D Shapes 

import com.sun.opengl.util.gl2.*; 

//Enable Lighting 

glEnable(GL_LIGHTING); 

glEnable(GL_LIGHT0); 

glEnable(GL_COLOR_MATERIAL); 

… 

GLUT glut = new GLUT(); 

… 

glut.glutSolidTeapot(0.5); 

glut.glutWireCube(1.0f); 

glut.glutSolidTorus(0.2, 0.5, 10, 20); 

glut.glutWireIcosahedron(); 

Creating a GLUT 

object usually 

inside display() 

2

Drawing 3D Object 

void glutWireSphere(double radius, 

int slices, int stacks); 

void glutSolidSphere(double radius, 


For example: glutWireSphere(0.5, 20, 16); 

glutSolidSphere(0.5, 20, 16); 

3


void glutWireCube(double size); 

void glutSolidCube(double size); 

For example: 

glutWireCube(1.0f); 

glutSolidCube(1.0f); 

4


void glutWireTorus(double innerRadius, 

double outerRadius, int nsides, int rings) ; 

void glutSolidTorus(double innerRadius, 

double outerRadius, intnsides, int rings) ; 

For example: glutSolidTorus(0.2, 0.5, 10, 20); 

glutWireTorus(0.2, 0.5, 10, 20); 

5


void glutWireIcosahedron(void); 

void glutSolidlcosahedron(void); 

For example: glutWireIcosahedron(); 

glutSolidIcosahedron(); 

6


void glutWireOctahedron(void); 

void glutSolidOctahedron(void); 

For example: 

glutWireOctahedron(); 

glutSolidOctahedron(); 

7


void glutWireTetrahedron(void); 

void glutSolidTetrahedron(void); 

For example: glutWireTetrahedron(); 

glutSolidTetrahedron(); 

8


void glutWireDodecahedron(); 

void glutSolidDodecahedron(); 

For example: glutWireDodecahedron(); 

glutSolidDodecahedron(); 

9


void glutWireCone(double radius, double height, 


void glutSolidCone(double radius, double height, 


For example: glutWireCone(1.0, 2.0, 15, 12); 

glutSolidCone(1.0, 2.0, 15, 12); 

10


void glutWireTeapot(double size); 

void glutSolidTeapot(double size); 

For example: 

glutWireTeapot(0.6); 

glutSolidTeapot(0.6); 

11

GLU 3D Objects 

12


GLUquadric gluNewQuadric(void); 

Creates a new quadrics object and returns a pointer to it. A 

null pointer is returned if the routine fails. 

void gluDeleteQuadric(GLUquadric qobj); 

Destroys the quadrics object qobj and frees up any memory 

used by it. 

GLUquadric qobj = gluNewQuadric(); 

13


Controlling Quadrics Attributes 

void gluQuadricDrawStyle( 

GLUquadric qobj, GLenum drawStyle); 

 

For the quadrics object qobj, drawStyle controls the rendering 

style. Legal values for drawStyle are GLU_POINT, GLU_LINE, 

GLU_SILHOUETTE, and GLU_FILL. 


gluQuadricDrawStyle(qobj, GLU_LINE); 

14


void gluSphere( 

GLUquadric qobj, double radius, 


Draws a sphere of the given radius, centered around the 

origin, (0, 0, 0). The sphere is subdivided around the z-axis into 

a number of slices (similar to longitude) and along the z- 

axis into a number of stacks (latitude). 


gluQuadricDrawStyle(qobj, GLU_FILL); 

gluSphere(qobj, 0.75, 15, 10); 

15


void gluCylinder( GLUquadric qobj, 

double baseRadius, double topRadius, 

double height, int slices, int stacks); 

Draws a cylinder oriented along the z-axis, with the base of the cylinder at z = 0 

and the top at z = height. Like a sphere, the cylinder is subdivided around the z-axis 

into a number of slices and along the z-axis into a number of stacks. 

baseRadius is the radius of the cylinder at z = 0. topRadius is the radius of 

the cylinder at z = height. If topRadius is set to 0, then a cone is generated. 



gluCylinder(qobj, 0.5, 0.3, 1.0, 15, 5); 

16


void gluDisk( GLUquadric qobj, 

double innerRadius, double outerRadius, 

int slices, int rings); 

 

Draws a disk on the z = 0 plane, with a radius of outerRadius and a 

concentric circular hole with a radius of innerRadius. If 

innerRadius is 0, then no hole is created. The disk is subdivided 

around the z-axis into a number of slices and also about the z-axis into a 

number of concentric rings. 



gluDisk(qobj, 0.25, 1.0, 20, 4); 

17


void gluPartialDisk( GLUquadric qobj, 

 

double innerRadius, double outerRadius, 

int slices, int rings, 

double startAngle, double sweepAngle); 

Draws a partial disk on the z = 0 plane. A partial disk is similar to a complete 

disk, in terms of outerRadius, innerRadius, slices, and rings. 

The difference is that only a portion of a partial disk is drawn, starting from 

startAngle through startAngle + sweepAngle. 



gluPartialDisk(qobj, 0.0, 1.0, 20, 4, 0.0, 225.0); 

18

References 

Donald Hearn, M. Pauline Baker, Computer Graphics 

with OpenGL, 3 rd edition, Prentice Hall, 2004 

• Chapter 8: Three-Dimensional Object 

Representations 

The OpenGL Programmer's Guide (the 

Redbook), Addison-Wesley 

• Chapter 11: Tessellators and Quadrics 

19

3D Objects in OpenGL

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