nisalon_caje | Salut, j'ai encore un problème et comme d'habitude je trouve pas la solution : mon problème c'est que j'ai une brique qui clignote anormalement : de temps en temps elle semble s'éteindre !!!
Voici la source :
Code :
- #include <stdio.h>
- #include <stdlib.h>
- #include <GL/glut.h>
- #include <math.h>
- #define PI 3.14159265
- int theta=50;
- void changePerspective();
- void display();
- void brique(void);
- void calcTableCosSin();
- void rotation();
- float ang=0;
- float inca=4;
- int rotation_act=1;
- float Sin[360],Cos[360];
- /* Paramètres de lumière */
- GLfloat L0pos[]={-4.0,4.0,3.0};
- GLfloat L0dif[]={ 1.0,1.0,1.0};
- GLfloat L1pos[]={ 1.7,4.5,2.0};
- GLfloat L1dif[]={ 1.0,1.0,1.0};
- GLfloat Mspec[]={ 0.7,0.7,0.7};
- GLfloat Mshiny=5;
- /* Fin paramètres de lumière */
- int main(int argc,char **argv) {
- // Initialisation d'OpenGL
- glutInit(&argc,argv);
- glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
- glutInitWindowPosition(200,200);
- glutInitWindowSize(640,480);
- glutCreateWindow("essd" );
- calcTableCosSin();
- glClearColor(0.0,0.0,0.0,0.0);
- glPointSize(1.0);
- glShadeModel(GL_SMOOTH);
- glEnable(GL_DEPTH_TEST);
- /* Paramétrage des lumières */
- glShadeModel(GL_SMOOTH);
- glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER,GL_TRUE);
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glEnable(GL_LIGHT1);
- glLightfv(GL_LIGHT0,GL_DIFFUSE,L0dif);
- glLightfv(GL_LIGHT0,GL_SPECULAR,L0dif);
- glLightfv(GL_LIGHT1,GL_DIFFUSE,L1dif);
- glLightfv(GL_LIGHT1,GL_SPECULAR,L1dif);
- /* Paramétrage du matériau */
- glMaterialfv(GL_FRONT_AND_BACK,GL_SPECULAR,Mspec);
- glMaterialf(GL_FRONT_AND_BACK,GL_SHININESS,Mshiny);
- changePerspective();
- glMatrixMode(GL_MODELVIEW);
- // Fonctions de rappel
- glutDisplayFunc(display);
- // Entrée dans la boucle principale
- glutMainLoop();
- return 0;
- }
- void changePerspective()
- {
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(theta,1.0,0.1,40.0);
- glMatrixMode(GL_MODELVIEW);
- }
- void display()
- {
- /* effacement de l'image avec la couleur de fond */
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glLoadIdentity();
- /*Application des transfos de visualisation */
- /*CAMERA*/
- glTranslatef(-0.5,-0.75,-4.0);
- glRotated(20.0,0.60,-1.0,-0.06);
- /*CAMERA FIN */
- /*LUMIERES*/
- glLightfv(GL_LIGHT0,GL_POSITION,L0pos);
- glLightfv(GL_LIGHT1,GL_POSITION,L1pos);
- /*LUMIERES FIN*/
- glPushMatrix();
- if(rotation_act==1)
- glutTimerFunc(30,rotation,0);
- /* Dessin de la brique tournante */
- glLoadIdentity();
- glPopMatrix();
- glPushMatrix();
- glRotatef(ang,0.0,1.0,0.0);
- brique();
- glFlush();
- /* On echange les buffers */
- glutSwapBuffers();
- }
- void brique(void) {
- // Fonction permettant de dessiner une brique
- float tl2=25/100+.2;
- glBegin(GL_POLYGON);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2, 0.2, tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2, 0.0, tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2, 0.0, tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2, 0.2, tl2);
- glEnd();
- glBegin(GL_POLYGON);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2,0.2, tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2,0.0, tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2,0.0,-tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2,0.2,-tl2);
- glEnd();
- glBegin(GL_POLYGON);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2,0.2,-tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2,0.0,-tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2,0.0,-tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2,0.2 ,-tl2);
- glEnd();
- glBegin(GL_POLYGON);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2,0.2 ,-tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2,0.0,-tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2,0.0, tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2,0.2 , tl2);
- glEnd();
- glBegin(GL_POLYGON);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2, 0.2 ,-tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2, 0.2 , tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2, 0.2 , tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2, 0.2 ,-tl2);
- glEnd();
-
- glBegin(GL_POLYGON);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2,0,-tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f(-tl2,0, tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2,0, tl2);
- glColor3f(1.0,1.0,1.0); glVertex3f( tl2,0,-tl2);
- glEnd();
- }
- void calcTableCosSin()
- {
- /* calcul du tableau des sinus et cosinus */
- int i;
- for (i=0;i<360;i++) {
- Cos[i]=cos(((float)i)/180.0*PI);
- Sin[i]=sin(((float)i)/180.0*PI);
- }
- }
- void rotation()
- {
- ang=ang+inca;
- if (ang>360)
- ang=ang-360;
- glutPostRedisplay();
- }
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Voila, merci de me dire où ca ne va pas et aussi dites moi si mon utilisation de gluttimerfunc est correcte
NC
Message édité par nisalon_caje le 17-02-2006 à 14:45:37
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