Fichier source : Animation-Objets.cpp
/* Une animation en OpenGL */
/* */
/* Auteur: Nicolas JANEY */
/* nicolas.janey@univ-fcomte.fr */
/* Septembre 2012 */
#include <stdlib.h>
#include <stdio.h>
#include <GL/glut.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include "Mobile.h"
#include "Damier.h"
/* Variables et constantes globales */
/* pour les angles et les couleurs utilises */
static float r0 = 0.0F;
static float r1 = 0.0F;
static float r2 = 0.0F;
static const float noir[] = { 0.0F,0.0F,0.0F,1.0F };
static const float blanc[] = { 1.0F,1.0F,1.0F,1.0F };
static const float jaune[] = { 1.0F,1.0F,0.0F,1.0F };
static const float rouge[] = { 1.0F,0.0F,0.0F,1.0F };
static const float vert[] = { 0.0F,1.0F,0.0F,1.0F };
static const float bleu[] = { 0.0F,0.0F,1.0F,1.0F };
static const GLfloat light0_position[] = { 0.0, 1.0, 0.0, 1.0 };
static const GLfloat light1_position[] = { -1.0, 1.0, 1.0, 0.0 };
static const GLfloat light2_position[] = { 1.0,-1.0, 1.0, 0.0 };
/* Fonction d'initialisation des parametres */
/* OpenGL ne changeant pas au cours de la vie */
/* du programme */
static void init(void) {
const GLfloat shininess[] = { 50.0 };
glMaterialfv(GL_FRONT,GL_SPECULAR,noir);
glMaterialfv(GL_FRONT,GL_SHININESS,shininess);
glLightfv(GL_LIGHT0,GL_DIFFUSE,rouge);
glLightfv(GL_LIGHT1,GL_DIFFUSE,jaune);
glLightfv(GL_LIGHT2,GL_DIFFUSE,bleu);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
glEnable(GL_LIGHT2);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
glEnable(GL_NORMALIZE);
glEnable(GL_AUTO_NORMAL);
}
/* Fonction executee lors d'un rafraichissement */
/* de la fenetre de dessin */
static void display1(void) {
glClearColor(0.5F,0.5F,0.5F,0.5F);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
gluLookAt(0.0,0.0,7.0,0.0,0.0,0.0,0.0,1.0,0.0);
glLightfv(GL_LIGHT0,GL_POSITION,light0_position);
glLightfv(GL_LIGHT1,GL_POSITION,light1_position);
glLightfv(GL_LIGHT2,GL_POSITION,light2_position);
glRotatef(r0,0.0F,0.0F,1.0F);
glRotatef(r1,0.0F,1.0F,0.0F);
glRotatef(r2,1.0F,0.0F,0.0F);
roue();
glPopMatrix();
glFlush();
glutSwapBuffers();
int error = glGetError();
if ( error != GL_NO_ERROR )
printf("Attention erreur %d\n",error);
}
static void display2(void) {
glClearColor(0.5F,0.5F,0.5F,0.5F);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
gluLookAt(0.0,0.0,10.0,0.0,0.0,0.0,0.0,1.0,0.0);
glLightfv(GL_LIGHT0,GL_POSITION,light0_position);
glLightfv(GL_LIGHT1,GL_POSITION,light1_position);
glLightfv(GL_LIGHT2,GL_POSITION,light2_position);
glRotatef(r0,0.0F,0.0F,1.0F);
glRotatef(r1,0.0F,1.0F,0.0F);
glRotatef(r2,1.0F,0.0F,0.0F);
essieu();
glPopMatrix();
glFlush();
glutSwapBuffers();
int error = glGetError();
if ( error != GL_NO_ERROR )
printf("Attention erreur %d\n",error);
}
static void display3(void) {
glClearColor(0.5F,0.5F,0.5F,0.5F);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
gluLookAt(0.0,0.0,18.0,0.0,0.0,0.0,0.0,1.0,0.0);
glLightfv(GL_LIGHT0,GL_POSITION,light0_position);
glLightfv(GL_LIGHT1,GL_POSITION,light1_position);
glLightfv(GL_LIGHT2,GL_POSITION,light2_position);
glRotatef(r0,0.0F,0.0F,1.0F);
glRotatef(r1,0.0F,1.0F,0.0F);
glRotatef(r2,1.0F,0.0F,0.0F);
mobile();
glPopMatrix();
glFlush();
glutSwapBuffers();
int error = glGetError();
if ( error != GL_NO_ERROR )
printf("Attention erreur %d\n",error);
}
static void display4(void) {
glClearColor(0.5F,0.5F,0.5F,0.5F);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
gluLookAt(0.0,0.0,150.0,0.0,0.0,0.0,0.0,1.0,0.0);
glLightfv(GL_LIGHT0,GL_POSITION,light0_position);
glLightfv(GL_LIGHT1,GL_POSITION,light1_position);
glLightfv(GL_LIGHT2,GL_POSITION,light2_position);
glRotatef(r0,0.0F,0.0F,1.0F);
glRotatef(r1,0.0F,1.0F,0.0F);
glRotatef(r2,1.0F,0.0F,0.0F);
damier();
glPopMatrix();
glFlush();
glutSwapBuffers();
int error = glGetError();
if ( error != GL_NO_ERROR )
printf("Attention erreur %d\n",error);
}
/* Fonction executee lorsqu'aucun evenement */
/* n'est en file d'attente */
static void idle(void) {
r0 += 1.3355F;
r1 += 1.6117F;
r2 += 1.4174F;
glutPostRedisplay();
}
/* Fonction executee lors d'un changement */
/* de la taille de la fenetre OpenGL */
static void reshape(int x,int y) {
glViewport(0,0,x,y);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(20.0F,(float) x/y,1.0,1000.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
/* Fonction executee lors de l'appui */
/* d'une touche alphanumerique du clavier */
static void keyboard(unsigned char key,int x,int y) {
switch (key) {
case 0x0D :
{ static int scn = 0;
scn = (scn+1)%4;
switch (scn) {
case 0 :
glutDisplayFunc(display1);
break;
case 1 :
glutDisplayFunc(display2);
break;
case 2 :
glutDisplayFunc(display3);
break;
case 3 :
glutDisplayFunc(display4);
break; } }
break;
case ' ' :
{ static int anim = 1;
anim = !anim;
glutIdleFunc(( anim ) ? idle : NULL); }
break;
case 0x1B :
exit(0);
break; }
}
/* Fonction principale */
int main(int argc,char **argv) {
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
glutInitWindowSize(300,300);
glutInitWindowPosition(50,50);
glutCreateWindow("Un mobile");
init();
glutKeyboardFunc(keyboard);
glutReshapeFunc(reshape);
glutIdleFunc(idle);
glutDisplayFunc(display1);
glutMainLoop();
return(0);
}
RETOUR