Vik Wiki Grafika - Gömb

#include <math.h>
#include <stdlib.h>

#if defined(__APPLE__)
  #include <OpenGL/gl.h>
  #include <OpenGL/glu.h>
  #include <GLUT/glut.h>
#else
  #if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
    #include <windows.h>
  #endif
  #include <GL/gl.h>
  #include <GL/glu.h>
  #include <GL/glut.h>
#endif

void onDisplay() {
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

  glutSolidSphere(1.0f, 16, 16);

  glutSwapBuffers();
}

void onIdle() {
  static bool first_call = true;
  if(first_call) {
    glutPostRedisplay();
    first_call = false;
  }
}

void onInitialization() {
  glEnable(GL_DEPTH_TEST);
  glMatrixMode(GL_PROJECTION);
  gluPerspective(60, 1, 0.1, 10);
  glMatrixMode(GL_MODELVIEW);
  gluLookAt(-3, 2, -2, 0, 0, 0, 0, 1, 0);
  glEnable(GL_LIGHTING);
  glEnable(GL_COLOR_MATERIAL);
  glEnable(GL_LIGHT0);
  float p[4] = {-1.1f, 2.0f, -1.2f, 1};
  glLightfv(GL_LIGHT0, GL_POSITION, p);
  float c[4] = {0.7f, 0.8f, 0.9f, 1.0f};
  glLightfv(GL_LIGHT0, GL_DIFFUSE, c);
  glShadeModel(GL_SMOOTH);

  glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0.0f);
  glLightf(GL_LIGHT0, GL_QUADRATIC_ATTENUATION, 0.5f);

  glFrontFace(GL_CCW);
  glCullFace(GL_BACK);
  glEnable(GL_CULL_FACE);
}

void onKeyboard(unsigned char key, int, int) {}

void onKeyboardUp(unsigned char key, int, int) {}

void onMouse(int, int, int, int) {}

void onMouseMotion(int, int) {}

int main(int argc, char **argv) {
  glutInit(&argc, argv);
  glutInitWindowSize(300, 300);
  glutInitWindowPosition(100, 100);
  glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);

  glutCreateWindow("Grafika pelda program");

  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();

  onInitialization();

  glutDisplayFunc(onDisplay);
  glutMouseFunc(onMouse);
  glutIdleFunc(onIdle);
  glutKeyboardFunc(onKeyboard);
  glutKeyboardUpFunc(onKeyboardUp);
  glutMotionFunc(onMouseMotion);

  glutMainLoop();

  return 0;
}