Le source : ExamTD120052006Exo4.cpp
/* Auteur: Nicolas JANEY */
/* nicolas.janey@univ-fcomte.fr */
/* Novembre 2005 */
/* Animation de lumieres en OpenGL */
#include <stdio.h>
#include <math.h>
#include <GL/glut.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include "ModuleManipulateur.h"
#include "ModuleMenus.h"
#include "ModuleAxes.h"
#include "ModuleReshape.h"
#include "ModuleFont.h"
#include "ModuleCouleurs.h"
static float a = 0;
static int f1;
static int fv;
void myinit(void) {
static float blanc[] = { 1.0F,1.0F,1.0F,1.0F };
glClearColor(0.75F,0.75F,0.75F,1.0F);
glLightfv(GL_LIGHT0,GL_DIFFUSE,blanc);
glLightfv(GL_LIGHT0,GL_SPECULAR,blanc);
glEnable(GL_LIGHTING);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
static float gris[] = { 0.9F,0.9F,0.9F,1.0F };
glMaterialfv(GL_FRONT,GL_DIFFUSE,gris);
glMaterialfv(GL_FRONT,GL_SPECULAR,gris);
glMaterialf(GL_FRONT,GL_SHININESS,120);
}
void scene(void) {
glPushMatrix();
for ( int i = 0 ; i < 10 ; i++ ) {
glPushMatrix();
glRotatef(i*36,0.0F,0.0F,1.0F);
glTranslatef(10.0F,0.0F,0.0F);
glutSolidSphere(3,180,180);
glPopMatrix(); }
glPopMatrix();
}
void display(void) {
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
/* ****** */
manipulateurSouris();
manipulateurClavier();
glDisable(GL_LIGHTING);
axes();
glPushMatrix();
glTranslatef(5.0F,0.0F,0.0F);
glColor3fv(couleurBlanc());
glutSolidSphere(0.3,30,30);
glRotatef(a,0.0F,0.0F,1.0F);
float x = 30.0F*cos(30.0F*3.14159F/180.0F);
float y = 30.0F*sin(30.0F*3.14159F/180.0F);
glBegin(GL_LINES);
glVertex3f(0.0F,0.0F,0.0F);
glVertex3f(x,y,0.0F);
glVertex3f(0.0F,0.0F,0.0F);
glVertex3f(x,-y,0.0F);
glEnd();
glPopMatrix();
glEnable(GL_LIGHTING);
/* ****** */
glPushMatrix();
glLightf(GL_LIGHT0,GL_SPOT_CUTOFF,30.0F);
GLfloat lDir[] = { 1.0F,0.0F,0.0F };
GLfloat lPos[] = { 5.0F,0.0F,0.0F,1.0F };
glLightfv(GL_LIGHT0,GL_POSITION,lPos);
glRotatef(a,0.0F,0.0F,1.0F);
glLightfv(GL_LIGHT0,GL_SPOT_DIRECTION,lDir);
glPopMatrix();
glPushMatrix();
scene();
glPopMatrix();
glPopMatrix();
glFlush();
glutSwapBuffers();
glutPostWindowRedisplay(fv);
}
void idle(void) {
a += 2.0F;
if ( a > 360.0F )
a = 0.0F;
glutPostWindowRedisplay(f1);
}
void reshapeV(int w,int h) {
glViewport(0,0,w,h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0,w,-h,0,-1.0,1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void displayV() {
glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT);
glClearColor(0.0F,0.0F,0.0F,1.0F);
glPushMatrix();
glColor4fv(couleurBlanc());
float pos = 1.0F;
placeFontCursor(5.0F,-pos*20.0F,0.0F);
simpleBitmapOutput(1,REGULAR8x13,"ANGLE : %6.3f",a);
glPopMatrix();
glutSwapBuffers();
}
void key(unsigned char key,int x,int y) {
if ( keyManipulateur(key,x,y) )
glutPostWindowRedisplay(f1);
else
switch ( key ) {
case ' ' : { static int anim = 1;
anim = !anim;
glutIdleFunc(( anim ) ? idle : NULL); }
break; }
}
int main(int argc,char **argv) {
glutInit(&argc,argv);
{ glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
glutInitWindowSize(300,300);
glutInitWindowPosition(50,50);
f1 = glutCreateWindow("Une lumière animée");
myinit();
creationMenuBasique();
setParametresOrthoBasique(-15.0,15.0,-15.0,15.0,-500.0,500.0);
setManipulateurDistance(1.0F);
glutReshapeFunc(reshapeOrthoBasique);
glutKeyboardFunc(key);
glutDisplayFunc(display);
glutMotionFunc(motionBasique);
glutMouseFunc(sourisBasique); }
{ glutInitWindowSize(300,30);
glutInitWindowPosition(50,380);
glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
fv = glutCreateWindow("Valeurs");
creationMenuBasique();
glutDisplayFunc(displayV);
glutReshapeFunc(reshapeV);
glutKeyboardFunc(key); }
glutIdleFunc(idle);
glutMainLoop();
return(0);
}