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SDL/OpenGL screen

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#1 aspic   Members   

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Posted 28 October 2013 - 08:27 PM

Help when i add texture to my quad the screen only pops and close
but when i remove the texture function the quad screen would run.

i dont think there's problem with the code
and the lighting and color works fine! 
help i don't know what to do in this

here's the code
 

float angle = 0.0;
const int triangle = 1;

/*unsigned  int loadTexture(const char* filename)
{
        SDL_Surface* img = SDL_LoadBMP(filename);
        unsigned int id;
        glGenTextures(1, &id);
        glBindTexture(GL_TEXTURE_2D, id);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->w, img->h, 0, GL_RGB,GL_UNSIGNED_BYTE, img->pixels);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        SDL_FreeSurface(img);
        return id;
}
*/
unsigned int tex;

void init()
{
        glClearColor(0.0,0.0,0.0,1.0);  //background color and alpha
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        gluPerspective(45,640.0/480.0,1.0,500.0);
        glMatrixMode(GL_MODELVIEW);
        glEnable(GL_DEPTH_TEST);
        glEnable(GL_TEXTURE_2D);
        //tex = loadTexture("brink.bmp");
}

void display()
{
        glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
        glLoadIdentity();
        glTranslatef(0.0,0.0,-5.0);
        glRotatef(angle,1.0,1.0,1.0);   // angle, x-axis, y-axis, z-axis
        glBindTexture(GL_TEXTURE_2D, tex);
        glBegin(GL_QUADS);
                glTexCoord2f(0.0,2.0);
                glVertex3f(-2.0,2.0,0.0);
                glTexCoord2f(0.0,0.0);
                glVertex3f(-2.0,-2.0,0.0);
                glTexCoord2f(2.0,0.0);
                glVertex3f(2.0,-2.0,0.0);
                glTexCoord2f(2.0,2.0);
                glVertex3f(2.0,2.0,0.0);
        glEnd();
}

Edited by aspic, 28 October 2013 - 08:33 PM.





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