#include 
#include 
#include "3dMath.h"

GLfloat xrot = 0.0f;
GLfloat yrot = 0.0f;

//Define my cube triangles, 6 sides to a cube, so 12 triangles in all (with 3 vertices each)
float cube[12][3][3] = {
	{{-50, 50, -50},  {50, 50, -50},  {-50, -50, -50}}, //Triangle 1
	{{50, 50, -50},   {50, -50, -50}, {-50, -50, -50}}, //Triangle 2
	{{50, 50, -50},   {50, 50, 50},   {50, -50, -50}},  //Triangle 3
	{{50, 50, 50},    {50, -50, 50},  {50, -50, -50}},  //Triangle 4
	{{50, 50, 50},    {-50, -50, 50}, {50, -50, 50}},   //Triangle 5
	{{50, 50, 50},    {-50, 50, 50},  {-50, -50, 50}},  //Triangle 6
	{{-50, -50, 50},  {-50, 50, 50},  {-50, 50, -50}},  //Triangle 7
	{{-50, -50, 50},  {-50, 50, -50}, {-50, -50, -50}}, //Triangle 8
	{{50, 50, 50},    {50, 50, -50},  {-50, 50, -50}},  //Triangle 9
	{{50, 50, 50},    {-50, 50, -50}, {-50, 50, 50}},   //Triangle 10
	{{50, -50, 50},   {-50, -50, 50}, {-50, -50, -50}}, //Triangle 11
	{{50, -50, -50},  {50, -50, 50},  {-50, -50, -50}}};//Triangle 12

float cubeNormals[12][3]; //Contains one normal for each triangle in the cube.

void ChangeSize(GLsizei w, GLsizei h) {
	if(h == 0)
		h = 1;
	
	glViewport(0, 0, w, h);

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();

	gluPerspective(60, (GLfloat)w/(GLfloat)h, 1, 400);
	
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
}

void RenderScene() {
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();

	glPushMatrix();
	
	glTranslatef(0.0f, 0.0f, -10.0f);

	glRotatef(xrot, 1.0f, 0.0f, 0.0f);
	glRotatef(yrot, 0.0f, 1.0f, 0.0f);

	//Draw the cube

	/*glBegin(GL_TRIANGLES);
		int i = 0;
		for(i = 0; i<12; i++) {
			glNormal3f(cubeNormals[0], cubeNormals[1], cubeNormals[2]);
			glVertex3f(cube[0][0], cube[0][1], cube[0][2]);
			glVertex3f(cube[1][0], cube[1][1], cube[1][2]);
			glVertex3f(cube[2][0], cube[2][1], cube[2][2]);
		}
	glEnd();*/

	glColor3f(1.0, 0.0, 0.0);

	glutSolidCube(5.0);

	glPopMatrix();

	glutSwapBuffers();
}

void Keyboard(int key, int x, int y) {
	if(key == GLUT_KEY_UP) xrot -= 5;
	if(key == GLUT_KEY_DOWN) xrot += 5;
	if(key == GLUT_KEY_RIGHT) yrot += 5;
	if(key == GLUT_KEY_LEFT) yrot -= 5;

	glutPostRedisplay();
}

void SetupRC() {
	glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

	//Setup a few flags
	glEnable(GL_CULL_FACE);
	glEnable(GL_DEPTH_TEST);
	
	//Calculate all the normals in the cube
	for(int i = 0; i < 12; i++) {
		calcNormal(cube, cubeNormals);
		ReduceToUnit(cubeNormals);
	}

	//Setup polygons and lights
	glShadeModel(GL_SMOOTH);

	/// Light values and coordinates
	GLfloat  ambientLight[] = { 0.0, 0.3f, 0.0f, 1.0f };
	GLfloat  diffuseLight[] = { 0.0f, 0.7f, 0.0f, 1.0f };
	GLfloat  lightPos[] = {0.f, 50.0f, 0.0f, 1.0f};

	// Enable lighting
	glEnable(GL_LIGHTING);

	// Setup and enable light 0
	glLightfv(GL_LIGHT0,GL_AMBIENT,ambientLight);
	glLightfv(GL_LIGHT0,GL_DIFFUSE,diffuseLight);
	glLightfv(GL_LIGHT0,GL_POSITION,lightPos);
	glEnable(GL_LIGHT0);

	// Enable color tracking
	glEnable(GL_COLOR_MATERIAL);
	
	// Set Material properties to follow glColor values
	glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);

}

void main(void) {
	glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
	glutCreateWindow("Primitives");
	glutDisplayFunc(RenderScene);
	glutReshapeFunc(ChangeSize);
	glutSpecialFunc(Keyboard);

	SetupRC();

	glutMainLoop();
}
 </pre> 

Edited by - Blackstream on July 9, 2001 8:06:38 PM  </i>   

/// Light values and coordinates	GLfloat  ambientLight[] = { 0.0f, 0.0f, 1.0f, 1.0f };	GLfloat  diffuseLight[] = { 0.0f, 0.0f, 1.0f, 1.0f };	GLfloat  ambient[] = {1.0, 0.0, 0.0, 0.0};	GLfloat  diffuse[] = {1.0, 0.0, 0.0, 1.0};	GLfloat  specular[] = {1.0, 1.0, 1.0, 0.0};	GLfloat  lightPos[] = {0.f, 20.0f, 0.0f, 1.0f};	// Enable lighting	glEnable(GL_LIGHTING);	// Setup and enable light 0	glLightfv(GL_LIGHT0,GL_AMBIENT,ambientLight);	glLightfv(GL_LIGHT0,GL_DIFFUSE,diffuseLight);	glLightfv(GL_LIGHT0,GL_POSITION,lightPos);	glEnable(GL_LIGHT0);	glMaterialfv(GL_FRONT, GL_AMBIENT, ambient);	glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuse);	glMaterialfv(GL_FRONT, GL_SPECULAR, specular);	glMateriali(GL_FRONT, GL_SHININESS, 128);