/* Auteur: Nicolas JANEY */
/* nicolas.janey@univ-fcomte.fr */
/* Janvier 2002 */
/* Illustration de la decomposition */
/* de la lumiere en differentes */
/* composantes au niveau de */
/* l'interface entre deux milieux */
#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 "ModuleFleche.h"
#include "ModuleMatriceVecteur.h"
#include "ModuleFont.h"
#include "ModuleManipulateur.h"
#include "ModuleMenus.h"
#include "ModuleReshape.h"
static vecteur p = { -9.0F,9.0F,0.0F,1.0F } ;
static vecteur r ;
static vecteur t ;
static vecteur i ;
static vecteur n = { 0.0F,1.0F,0.0F } ;
static int rtt = 1;
static float dif ;
static float nfact=1.0F ;
static float thetai ;
static float thetat ;
static int f1;
static int f2;
void myinit(void) {
GLfloat light_position0[] = { 1.0F,0.0F,1.0F,0.0F };
GLfloat light_position1[] = { -1.0F,0.0F,1.0F,0.0F };
glLightfv(GL_LIGHT0,GL_AMBIENT,couleurNoir());
glLightfv(GL_LIGHT0,GL_DIFFUSE,couleurBlanc());
glLightfv(GL_LIGHT1,GL_DIFFUSE,couleurBlanc());
glLightfv(GL_LIGHT0,GL_SPECULAR,couleurNoir());
glLightfv(GL_LIGHT0,GL_POSITION,light_position0);
glLightfv(GL_LIGHT1,GL_POSITION,light_position1);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
glEnable(GL_AUTO_NORMAL);
glEnable(GL_NORMALIZE);
glDepthFunc(GL_LESS);
glEnable(GL_ALPHA_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE,GL_TRUE);
}
void reflexion(vecteur p) {
glColor4fv(couleurRouge()) ;
r[0] = -p[0] ;
r[1] = p[1] ;
r[2] = -p[2] ;
normalise(r) ;
flecheEnVolume(10*r[0],10*r[1],10*r[2],0.35F,1.5F,0.07F);
placeFontCursor(5*r[0],5*r[1],5*r[2]) ;
deplacementCursor(5,15,0) ;
simpleBitmapOutput(1,REGULAR8x13,"R") ;
deplacementCursor(2,10,0) ;
simpleBitmapOutput(1,DESSIN,"TF") ;
}
void diffusion(vecteur p) {
vecteur rd ;
rd[0] = -p[0] ;
rd[1] = -p[1] ;
rd[2] = -p[2] ;
normalise(rd) ;
dif = -rd[1] ;
thetai = acos(dif)*180.0F/3.14159F ;
thetat = asin(nfact*sin(thetai*3.14159F/180.0F))*180.0F/3.14159F;
glColor4fv(couleurVert()) ;
for ( int j = 15 ; j < 90 ; j += 30 ) {
float anglex = j * 3.14159F / 180.0F ;
float daz = (((j-15)/30)%2 == 0) ? 20.0F : 0.0F ;
for ( int k = 0 ; k < 360 ; k += 40 ) {
float anglez = (k+daz) * 3.14159F / 180.0F ;
float x =(float) (cos(anglez)*cos(anglex)*5*dif) ;
float z =(float) (sin(anglez)*cos(anglex)*5*dif) ;
float y =(float) (sin(anglex)*5*dif) ;
flecheEnVolume(x,y,z,0.1F,0.5F,0.03F); } }
}
void transmission(vecteur p) {
i[0] = p[0];
i[1] = p[1];
i[2] = p[2];
normalise(i);
float ni = produitScalaire(i,n) ;
float v = 1-nfact*nfact*(1-ni*ni) ;
if ( v > 0.0F ) {
rtt = 1;
float tt = nfact*ni-(float) sqrt(v) ;
t[0] = tt*n[0] - nfact*i[0] ;
t[1] = tt*n[1] - nfact*i[1] ;
t[2] = tt*n[2] - nfact*i[2] ;
glColor4fv(couleurBleu()) ;
placeFontCursor(5*t[0],5*t[1],5*t[2]) ;
deplacementCursor(5,0,0) ;
simpleBitmapOutput(1,REGULAR8x13,"T") ;
deplacementCursor(2,-5,0) ;
simpleBitmapOutput(1,DESSIN,"TF") ;
flecheEnVolume(10*t[0],10*t[1],10*t[2],0.35F,1.5F,0.07F); }
else
rtt = 0;
}
void displayRayons(void) {
glPushMatrix();
glEnable(GL_LIGHTING);
glPushMatrix();
glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurJaune()) ;
glTranslatef(p[0],p[1],p[2]) ;
glEnable(GL_CULL_FACE);
glutSolidSphere(0.5,10,10);
glDisable(GL_CULL_FACE);
glDisable(GL_LIGHTING);
glColor4fv(couleurJaune()) ;
placeFontCursor(-p[0]/2.0F,-p[1]/2.0F,-p[2]/2.0F) ;
deplacementCursor(5,-5,0) ;
simpleBitmapOutput(1,REGULAR8x13,"I") ;
deplacementCursor(2,-10,0) ;
simpleBitmapOutput(1,DESSIN,"TF") ;
flecheEnVolume(-p[0],-p[1],-p[2],0.35F,1.5F,0.07F);
glPopMatrix();
glColor4fv(couleurMagenta()) ;
placeFontCursor(0.0F,5.0F,0.0F) ;
deplacementCursor(10,0,0) ;
simpleBitmapOutput(1,REGULAR8x13,"N") ;
deplacementCursor(7,-5,0) ;
simpleBitmapOutput(1,DESSIN,"TF") ;
flecheEnVolume(0.0F,10.0F,0.0F,0.35F,1.5F,0.07F);
diffusion(p);
reflexion(p);
transmission(p);
glPopMatrix();
}
void display(void) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
glPushMatrix() ;
glTranslatef(0.0F,-2.0F,0.0F);
manipulateurSouris();
manipulateurClavier();
displayRayons() ;
glEnable(GL_LIGHTING);
glPushMatrix();
glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurBlanc(0.5F)) ;
glScalef(16.0F,0.0001F,14.0F) ;
glEnable(GL_CULL_FACE);
glutSolidCube(1.0) ;
glDisable(GL_CULL_FACE);
glPopMatrix();
glDisable(GL_LIGHTING);
glPopMatrix() ;
glDisable(GL_DEPTH_TEST);
glFlush();
glutSwapBuffers() ;
glutPostWindowRedisplay(f2);
}
void key2(unsigned char key,int x,int y) {
switch ( key ) {
case 'n' : nfact *= 1.01F ;
glutPostWindowRedisplay(f1);
break;
case 'N' : nfact /= 1.01F ;
glutPostWindowRedisplay(f1);
break;
case 'm' : nfact *= 1.001F ;
glutPostWindowRedisplay(f1);
break;
case 'M' : nfact /= 1.001F ;
glutPostWindowRedisplay(f1);
break;
case '1' : p[0] -= 0.2F ;
glutPostWindowRedisplay(f1);
break;
case '4' : p[0] += 0.2F ;
glutPostWindowRedisplay(f1);
break;
case '2' : p[1] -= 0.2F ;
glutPostWindowRedisplay(f1);
break;
case '5' : p[1] += 0.2F ;
glutPostWindowRedisplay(f1);
break;
case '3' : p[2] -= 0.2F ;
glutPostWindowRedisplay(f1);
break;
case '6' : p[2] += 0.2F ;
glutPostWindowRedisplay(f1);
break;
case 0x1B : exit(0);
break; }
}
void key(unsigned char key,int x,int y) {
if ( keyManipulateur(key,x,y) )
glutPostWindowRedisplay(f1);
else
key2(key,x,y);
}
void special(int key,int x,int y) {
if ( specialManipulateur(key,x,y) ) {
glutPostWindowRedisplay(f1); }
}
void reshape2(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 display2() {
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,"n = ni/nt : %6.3f",nfact) ;
pos += 1.0F;
glColor4fv(couleurJaune());
placeFontCursor(5.0F,-pos*20.0F,0.0F) ;
simpleBitmapOutput(1,REGULAR8x13,"INCIDENT : %6.3f %6.3f %6.3f",i[0],i[1],i[2]) ;
pos += 1.0F;
glColor4fv(couleurMagenta());
placeFontCursor(5.0F,-pos*20.0F,0.0F) ;
simpleBitmapOutput(1,REGULAR8x13,"NORMALE : %6.3f %6.3f %6.3f",n[0],n[1],n[2]) ;
pos += 1.0F;
glColor4fv(couleurVert());
placeFontCursor(5.0F,-pos*20.0F,0.0F) ;
simpleBitmapOutput(1,REGULAR8x13,"DIFFUSION : %6.3f",dif) ;
pos += 1.0F;
glColor4fv(couleurRouge());
placeFontCursor(5.0F,-pos*20.0F,0.0F) ;
simpleBitmapOutput(1,REGULAR8x13,"REFLEXION : %6.3f %6.3f %6.3f",r[0],r[1],r[2]) ;
pos += 1.0F;
glColor4fv(couleurBleu());
placeFontCursor(5.0F,-pos*20.0F,0.0F) ;
if ( rtt )
simpleBitmapOutput(1,REGULAR8x13,"TRANSMISSION : %6.3f %6.3f %6.3f",t[0],t[1],t[2]) ;
else
simpleBitmapOutput(1,REGULAR8x13,"TRANSMISSION : AUCUNE") ;
pos += 1.0F;
glColor4fv(couleurJaune());
placeFontCursor(5.0F,-pos*20.0F,0.0F) ;
simpleBitmapOutput(1,REGULAR8x13,"THETA I : %6.3f degres",thetai) ;
pos += 1.0F;
glColor4fv(couleurRouge());
placeFontCursor(5.0F,-pos*20.0F,0.0F) ;
simpleBitmapOutput(1,REGULAR8x13,"THETA R : %6.3f degres",thetai) ;
pos += 1.0F;
glColor4fv(couleurBleu());
placeFontCursor(5.0F,-pos*20.0F,0.0F) ;
if ( rtt )
simpleBitmapOutput(1,REGULAR8x13,"THETA T : %6.3f degres",thetat) ;
else
simpleBitmapOutput(1,REGULAR8x13,"THETA T : AUCUN") ;
glPopMatrix();
glutSwapBuffers();
}
int main(int argc,char **argv) {
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
glutInitWindowPosition(50,50);
glutInitWindowSize(310,250);
f1 = glutCreateWindow("Décomposition au niveau d'une interface");
myinit();
creationMenuBasique();
setParametresOrthoBasique(-10.0,10.0,-10.0,10.0,-500.0,500.0);
setManipulateurDistance(1.0F);
setManipulateurClavierAngle(25.0F,15.0F,0.0F);
glutReshapeFunc(reshapeOrthoBasique);
glutKeyboardFunc(key);
glutSpecialFunc(specialBasique);
glutDisplayFunc(display);
glutMotionFunc(motionBasique);
glutMouseFunc(sourisBasique);
glutInitWindowSize(360,190);
glutInitWindowPosition(60,340);
glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
f2 = glutCreateWindow("Valeurs");
creationMenuBasique();
glutDisplayFunc(display2);
glutReshapeFunc(reshape2);
glutKeyboardFunc(key2);
glutSpecialFunc(special);
glutMainLoop();
return(0);
}
RETOUR