/* Main Loop
* Open window with initial window size, title bar,
* RGBA display mode, depth buffer, and handle input events.
*/
int mainFog(int argc, char** argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(500, 500);
glutCreateWindow(argv[0]);
initFog();
glutReshapeFunc(reshapeFog);
glutKeyboardFunc(keyboardFog);
glutDisplayFunc(displayFog);
glutMainLoop();
return 0;
}
void init(void){
initFog();
// glClearColor(1, 1, 1, 0);
glColor3f(1, 1, 1);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_LIGHTING);
glLightfv(GL_LIGHT0, GL_POSITION, lightpos);
// glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, lightDir);
glLightfv(GL_LIGHT1, GL_POSITION, lightpos1);
// glLightfv(GL_LIGHT1, GL_SPOT_DIRECTION, lightDir);
glLightfv(GL_LIGHT1, GL_DIFFUSE, lightDif);
glLightfv(GL_LIGHT1, GL_SPECULAR, lightSpec);
glLightfv(GL_LIGHT2, GL_POSITION, lightpos2);
// glLightfv(GL_LIGHT1, GL_SPOT_DIRECTION, lightDir);
glLightfv(GL_LIGHT2, GL_DIFFUSE, lightDif);
glLightfv(GL_LIGHT2, GL_SPECULAR, lightSpec);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
// glEnable(GL_LIGHT2);
gluPerspective(45, 1, 1, 100);
glEnable(GL_TEXTURE_2D); // enable texture mapping
glShadeModel(GL_SMOOTH); // enable smooth shading
// glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // black background
glClearDepth(1.0f); // depth buffer setup
glDepthFunc(GL_LEQUAL); // configure depth testing
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // really nice perspective calculations
}
void
initGLEnv(Bool doFog)
{
GLfloat spc[4] = {1.0, 1.0, 1.0, 1.0};
glClearColor(0.0, 0.0, 0.0, 0.0);
glClearDepth(1.0);
glDepthFunc(GL_LESS);
glEnable(GL_COLOR_MATERIAL);
glMateriali(GL_FRONT, GL_SHININESS, 128);
glMaterialfv(GL_FRONT, GL_SPECULAR, spc);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, spc);
glEnable(GL_NORMALIZE);
glEnable(GL_DEPTH_TEST);
glShadeModel(GL_SMOOTH);
glEnable(GL_CULL_FACE);
initLights();
if (doFog) initFog();
Quadratic = gluNewQuadric();
}
