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About aspic

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  1. aspic

    SDL/OpenGL screen

    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(); }
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