Fichier source : ParametragesGLUt3.cpp
Modules utilitaires
/* Fonction executee lorsqu'aucun evenement */
/* n'est en file d'attente */
static float r0 = 0.0F;
static float r1 = 0.0F;
static float r2 = 0.0F;
static void idle(void) {
r0 += 0.3355F;
r1 += 0.6117F;
r2 += 0.4174F;
glutPostRedisplay();
}
static int mode = 1;
/* Scene dessinee */
static void scene1(void) {
glPushMatrix();
glPushMatrix();
glTranslatef(2.0F,0.0F,2.0F);
glutSolidCube(2.0);
glPopMatrix();
glPushMatrix();
glTranslatef(2.0F,0.0F,-2.0F);
glutSolidCube(2.0);
glPopMatrix();
glPushMatrix();
glTranslatef(-2.0F,0.0F,2.0F);
glutSolidCube(2.0);
glPopMatrix();
glPushMatrix();
glTranslatef(-2.0F,0.0F,-2.0F);
glutSolidCube(2.0);
glPopMatrix();
glPopMatrix();
}
static void scene2(void) {
glPushMatrix();
glPushMatrix();
glTranslatef(2.0F,0.0F,2.0F);
glutSolidSphere(1.0,36,18);
glPopMatrix();
glPushMatrix();
glTranslatef(2.0F,0.0F,-2.0F);
glutSolidSphere(1.0,36,18);
glPopMatrix();
glPushMatrix();
glTranslatef(-2.0F,0.0F,2.0F);
glutSolidSphere(1.0,36,18);
glPopMatrix();
glPushMatrix();
glTranslatef(-2.0F,0.0F,-2.0F);
glutSolidSphere(1.0,36,18);
glPopMatrix();
glPopMatrix();
}
/* Fonction executee lors d'un rafraichissement */
/* de la fenetre de dessin */
static void display1(void) {
glClearColor(0.3F,0.3F,0.3F,0.5F);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
const GLfloat light0_position[] = { 0.0,0.0,0.0,1.0 };
const GLfloat light1_position[] = { -1.0,1.0,1.0,0.0 };
const GLfloat light2_position[] = { 1.0,-1.0,1.0,0.0 };
glLightfv(GL_LIGHT0,GL_POSITION,light0_position);
glLightfv(GL_LIGHT1,GL_POSITION,light1_position);
glLightfv(GL_LIGHT2,GL_POSITION,light2_position);
glPolygonMode(GL_FRONT_AND_BACK,( mode ) ? GL_FILL : GL_LINE);
glPushMatrix();
glRotatef(r0,1.0,0.0,0.0);
glRotatef(r1,0.0,1.0,0.0);
glRotatef(r2,0.0,0.0,1.0);
scene1();
glPopMatrix();
glFlush();
glutSwapBuffers();
int error = glGetError();
if ( error != GL_NO_ERROR )
printf("Attention erreur %d\n",error);
}
static void display2(void) {
glClearColor(0.3F,0.3F,0.3F,0.5F);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
const GLfloat light0_position[] = { 0.0,0.0,0.0,1.0 };
const GLfloat light1_position[] = { -1.0,1.0,1.0,0.0 };
const GLfloat light2_position[] = { 1.0,-1.0,1.0,0.0 };
glLightfv(GL_LIGHT0,GL_POSITION,light0_position);
glLightfv(GL_LIGHT1,GL_POSITION,light1_position);
glLightfv(GL_LIGHT2,GL_POSITION,light2_position);
glPolygonMode(GL_FRONT_AND_BACK,( mode ) ? GL_FILL : GL_LINE);
glPushMatrix();
glRotatef(r0,1.0,0.0,0.0);
glRotatef(r1,0.0,1.0,0.0);
glRotatef(r2,0.0,0.0,1.0);
scene2();
glPopMatrix();
glFlush();
glutSwapBuffers();
int error = glGetError();
if ( error != GL_NO_ERROR )
printf("Attention erreur %d\n",error);
}
/* 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 anim = 0;
anim = !anim;
glutIdleFunc(( anim ) ? idle : NULL); }
break;
case 0x20 :
{ static int objet = 1;
objet = !objet;
glutDisplayFunc(( objet ) ? display1 : display2); }
glutPostRedisplay();
break;
case 'm' :
{ mode = !mode; }
glutPostRedisplay();
break;
case 0x1B :
exit(0);
break; }
}