Computergrafik

Computergrafik
Ein minimales OpenGL Programm
glMatrixMode(GL_PROJECTION); //Matrix auswählen
glLoadIdentity(); //Matrix initialisieren
gluPerspective(90.0f, 1.0f,0.1f,1000.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClearColor(1.0f,1.0f,1.0f,1.0f); //Hintergrundsetzen
glEnable(GL_DEPTH_TEST); //Tiefentest einschalten
glMatrixMode(GL_MODELVIEW);
gluLookAt(0.0f,0.0f, 3.0f, //Betrachterposition
0.0f,0.0f,-1.0f,//Point of Interest
0.0f,1.0f,0.0f);//Wo ist Oben
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glColor3f(0.5f,0.5f,0.5f);
glVertex3f(-1.0f,-1.0f, 0.0f);
glVertex3f( 1.0f,-1.0f, 0.0f);
glVertex3f( 0.0f, 1.0f, 0.0f);
glEnd();
SDL_GL_SwapBuffers();