/* Auteur: Nicolas JANEY */
/* nicolas.janey@univ-fcomte.fr */
/* Avril 2001 */
/* Utilisation des cameras en OpenGL */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <GL/glut.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include "ModuleCouleurs.h"
#include "ModuleMenus.h"
static float anglex = 0.0F ;
static int scene = 0 ;
static int width ;
static int height ;
void wireCylindre(float r,float h,int n,int m) {
glPushMatrix();
GLUquadricObj *qobj = gluNewQuadric();
gluQuadricDrawStyle(qobj,GLU_LINE);
gluCylinder(qobj,r,r,h,n,m);
gluDeleteQuadric(qobj);
glPopMatrix();
}
void display(void) {
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(3.0f,3.0f,0.0f);
glRotatef(anglex,1.0F,0.0F,0.0F) ;
glutWireCube(2.0);
glPopMatrix();
glPushMatrix();
glTranslatef(-3.0f,3.0f,0.0f);
glRotatef(anglex,1.0F,0.0F,0.0F) ;
glutWireSphere(1.0,18,18);
glPopMatrix();
glPushMatrix();
glTranslatef(3.0f,-3.0f,0.0f);
glRotatef(anglex,1.0F,0.0F,0.0F) ;
wireCylindre(1.0,2.0,18,18);
glPopMatrix();
glPushMatrix();
glTranslatef(-3.0f,-3.0f,0.0f);
glRotatef(anglex,1.0F,0.0F,0.0F) ;
glutWireCone(1.0,2.0,18,18);
glPopMatrix();
glFlush();
glutSwapBuffers();
}
void myinit (void) {
glClearColor(0.5F,0.5F,0.5F,0.0F);
glColor4fv(couleurBlanc());
glEnable(GL_DEPTH_TEST);
}
void reshape(int w, int h) {
glViewport(0,0,w,h);
width = w;
height = h;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(30,(double) w/h,5.0,40.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
switch ( scene ) {
case 0 : glTranslatef(0.0f,0.0f,-20.0f);
break;
case 1 : glRotatef(-90.0f,0.0f,1.0f,0.0f);
glTranslatef(-20.0f,0.0f,0.0f);
break;
case 2 : glRotatef(90.0f,1.0f,0.0f,0.0f);
glTranslatef(0.0f,-20.0f,0.0f);
break;
case 3 : glRotatef(-45.0f,0.0f,1.0f,0.0f);
glTranslatef(-20.0f,0.0f,-20.0f);
break;
case 4 : glRotatef(45.0f,1.0f,0.0f,0.0f);
glTranslatef(0.0f,-20.0f,-20.0f);
break;
case 5 : glRotatef(-90.0f,-1.0f,1.0f,0.0f);
glTranslatef(-20.0f,-20.0f,0.0f);
break;
case 6 : glRotatef(180.0f,-0.325f,-0.325f,-0.888f);
glTranslatef(-20.0f,-20.0f,-20.0f);
break;
case 7 : glRotatef(-54.7356f,-1.0f,1.0f,0.0f);
glTranslatef(-20.0f,-20.0f,-20.0f);
break;
case 8 : gluLookAt(20.0,20.0,20.0,0.0,0.0,0.0,0.0,1.0,0.0);
break; }
}
void key(unsigned char key,int x,int y) {
switch ( key) {
case 0x0D : scene = (scene+1) % 9 ;
reshape(width,height);
glutPostRedisplay();
break ;
case 0x1B : exit(0) ;
break; }
}
void idle(void) {
anglex++ ;
glutPostRedisplay() ;
}
int main(int argc,char **argv) {
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
glutInitWindowSize(300,300);
glutInitWindowPosition(50,50);
glutCreateWindow("Camera pour la perspective");
myinit();
creationMenuBasique();
glutKeyboardFunc(key);
glutIdleFunc(idle);
glutReshapeFunc(reshape);
glutDisplayFunc(display);
glutMainLoop();
return(0);
}
RETOUR