A laide eclairage et texturing opengl !!Problemes!!

Question

Bonjour a tous, voila je suis en train de developper un petit doom like (je suis debutant sous opengl) .Jai fais un cube map et lorsque j applique ma texture sur le sol, plus moyen d avoir d &#233;clairage,jai vraiment besoin d aide MERCI d avance voici mon code

zerailkiller · Answer

#include <gl/glut.h>
#include "loadppm.c"


char texFileName[] = "sol.ppm";
PPMImage *image;


GLfloat minX=0.0,maxX=1.0;



void Reshape (int w, int h)
{
 glMatrixMode( GL_PROJECTION ); //on veut d&#233;finir la projection
 glLoadIdentity();
 glFrustum( -1., 1., -1., 1., 1.5, 300);
 gluLookAt(0,0,10,0,0,0,0,1,1);
 glMatrixMode( GL_MODELVIEW ); //retour mod&#233;lisation - visualisation
 glViewport( 0, 0, 640  , 480 );
}



void InitGL() 
{ 
image = LoadPPM(texFileName);


    
    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LESS);


   /* glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
       glTexImage2D(GL_TEXTURE_2D, 1, 3, image->sizeX, image->sizeY,
   0, GL_RGB, GL_UNSIGNED_BYTE, image->data);
    */
    gluBuild2DMipmaps(GL_TEXTURE_2D, 3, image->sizeX, image->sizeY,GL_RGB, GL_UNSIGNED_BYTE, image->data);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
    glEnable(GL_TEXTURE_2D);
 //glEnable(GL_FOG);
 GLfloat color[4] = {0.1,0.01,0.01,0.01};
 GLfloat lightpos[4] = { 20,20,20,0};
 GLfloat amb[4] = {0,0,0,1};
 GLfloat dif[4] = {1,1,1,1};
 GLfloat spec[4] = {1,1,1,1};


 GLfloat matamb[4] = {0,0,0,1};
 GLfloat matdif[4] = {1,1,1,1};
 GLfloat matspec[4] = {1,1,1,1};
 GLfloat emiss[4] = {0.3,0.1,0.1,1};
 
 
 glFogf(GL_FOG_START,200);
 glFogfv(GL_FOG_COLOR,color);
 glFogf(GL_FOG_END,600);
 glFogf (GL_FOG_DENSITY, .03);
 glHint (GL_FOG_HINT, GL_DONT_CARE);
 glEnable(GL_LIGHTING);
 glEnable(GL_LIGHT0);
 glLightfv(GL_LIGHT0,GL_POSITION,lightpos);
 glLightfv(GL_LIGHT0,GL_AMBIENT,amb);
 glLightfv(GL_LIGHT0,GL_DIFFUSE,dif);
 glLightfv(GL_LIGHT0,GL_SPECULAR,spec);


 glMaterialfv(GL_FRONT,GL_AMBIENT,matamb);
 glMaterialfv(GL_FRONT,GL_DIFFUSE,matdif);
 glMaterialfv(GL_FRONT,GL_SPECULAR,matspec);
 glMaterialfv(GL_FRONT,GL_EMISSION,emiss);
 glMaterialf(GL_FRONT,GL_SHININESS,100);
 glShadeModel(GL_SMOOTH);
 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}

zerailkiller · Answer

void Draw() 
{ 


  glClearColor(0,0.3,0.9,0);


  glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); //Efface le framebuffer et le depthbuffer 


 
  glLoadIdentity();
  glColor3f(0.0,0.5,0.5);//arme
  railgun();
  
  if (tir>0)
  {
   glPushMatrix();


   glBegin(GL_LINES);
   glColor3f(1,0.0,0.1);
   glVertex3i(8,-3,0);
   glVertex3i(1,-3,-3000);
   glEnd();
   glBegin(GL_LINES);
   glColor3f(1,0.1,0.1);
   glVertex3i(9,-3,0);
   glVertex3i(2,-3,-3000);
   glEnd();
   glBegin(GL_LINES);
   glColor3f(1,0.1,0.1);
   glVertex3i(8,-4,0);
   glVertex3i(1,-4,-3000);
   glEnd();
   glBegin(GL_LINES);
   glColor3f(1,0.1,0.1);
   glVertex3i(9,-4,0);
   glVertex3i(1,-4,-3000);
   glEnd();
   
   glPopMatrix();
   tir+=-0.1;
  }
    
 
  
  glRotatef(camanglex,1,0,0);
  glRotatef(camangley,0,1,0);
  glTranslatef(coordx,coordy-25,coordz);//camera
  



  /* monde tout mettre 
  ici
  */ 
 
    glBegin(GL_QUADS);
    glTexCoord2f(0, 0); glVertex3f(-100,0 , -100);
    glTexCoord2f(5, 0); glVertex3f(-100,0 , 100);
    glTexCoord2f(5, 5); glVertex3f(100, 0, 100);
    glTexCoord2f(0, 5); glVertex3f(100, 0, -100);


    glEnd();
 
glBegin(GL_QUADS);
    glTexCoord2f(0, 0); glVertex3f(-100,50 , -100);
    glTexCoord2f(5, 0); glVertex3f(-100,50 , 100);
    glTexCoord2f(5, 5); glVertex3f(100, 50, 100);
    glTexCoord2f(0, 5); glVertex3f(100, 50, -100);


    glEnd();


 glPushMatrix();
 
    glBegin(GL_QUADS);
    glTexCoord2f(0, 0); glVertex3f(-100,50 , -100);
    glTexCoord2f(1, 0); glVertex3f(-100,0 , -100);
    glTexCoord2f(1, 5); glVertex3f(-100, 0, 100);
    glTexCoord2f(0, 5); glVertex3f(-100, 50, 100);


    glEnd();
 glBegin(GL_QUADS);
    glTexCoord2f(0, 0); glVertex3f(100,50 , -100);
    glTexCoord2f(1, 0); glVertex3f(100,0 , -100);
    glTexCoord2f(1, 5); glVertex3f(-100, 0, -100);
    glTexCoord2f(0, 5); glVertex3f(-100, 50, -100);


    glEnd();
  glBegin(GL_QUADS);
    glTexCoord2f(0, 0); glVertex3f(100,50 , 100);
    glTexCoord2f(5, 0); glVertex3f(-100, 50, 100);
    glTexCoord2f(5, 1); glVertex3f(-100, 0, 100);
    glTexCoord2f(0, 1); glVertex3f(100,0 , 100);


    glEnd();
 glBegin(GL_QUADS);
    glTexCoord2f(0, 0); glVertex3f(100,50 ,-100);
    glTexCoord2f(1, 0); glVertex3f(100,0 , -100);
    glTexCoord2f(1, 5); glVertex3f(100, 0, 100);
    glTexCoord2f(0, 5); glVertex3f(100, 50, 100);


    glEnd();
 glPopMatrix();



glPopMatrix(); 


  
  glPushMatrix();
  glColor3f(1,1,0);
  glTranslatef(10,250,-200);
  glutSolidSphere(10,20,20);
  glPopMatrix();
  glPushMatrix();
  glColor3f(0,0,0.1);
  doom();
  glPopMatrix();
  


  
  normalise(camanglex);
  normalise(camangley);
  mousecam();
  calculs();


  glutSwapBuffers(); 
  glutPostRedisplay(); //Uniquement pour GLUT 
} 



int main( int argc, char *argv[ ], char *envp[ ] )
 
{ 
glutInit(&argc, argv); 
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH); 
glutInitWindowSize(640 ,480);  //Optionnel 
glutInitWindowPosition(0,0); 
glutCreateWindow("DOOM 9");
glutWarpPointer(320,240);
glutKeyboardFunc(trucavecdestouches);


glutPassiveMotionFunc(madafakamouse);
glutPassiveMotionFunc(madafakamouse2);
glutMouseFunc(boutonsouris);


InitGL();
  
glutReshapeFunc(Reshape);
glutDisplayFunc(Draw);
  
//glutFullScreen();
  
glutMainLoop(); 


 
return 0; 
  
}

luhtor · Answer

Je crois qu'un petit glGenTextures, et glBindTexture seraient les bienvenu.



variable globale: GLuint texture_id;





glGenTextures (1, &texture_id);

glBindTexture(GL_TEXTURE_2D, texture_id);



   gluBuild2DMipmaps(GL_TEXTURE_2D, 3, image->sizeX, image->sizeY,GL_RGB, GL_UNSIGNED_BYTE, image->data);

    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);

    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);

    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);

    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);

    glEnable(GL_TEXTURE_2D);

zerailkiller · Answer

MErci beaucoup luhtor ,Je vais essayer. :)

zerailkiller · Answer

Par contre une derniere chose ,
coment dire a opengl quelle texture on veux mapper dans le draw() (ma fonction de dessin) lorsquon applique les coordonn&#233;es de la texture aux vertex?

merci :)

zerailkiller · Answer

c est bon jai trouv&#233; , merci eaucoup luthor de m avoir appris ces trucs, j aurais mis des heures a trouver sinon,allez tcho ++++++++++++++

cs_keil · Answer

la fonction glBindTexture(int Type, int Texture_ID) te permet de s&#233;lectionner la texture &#224; appliquer.

Si tu veux d&#233;sactiver l'application de texture sur une surface, utilise glDisable(GL_TEXTURE_2D);

glGenLists(int nb) te renvoi un entier si nb = 1 ou sinon un tableau
d'entier qui te serviront &#224; attribuer un ID aux textures que tu
chargeras avec ce que luthor t'as donn&#233;

A laide eclairage et texturing opengl !!Problemes!!

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