SFMLApplication(): contextSettings(32), 
         window(sf::VideoMode(800, 600), "Skeletal Animation Library", sf::Style::Default, contextSettings),
         astroBoyMovingGlasses(astroBoy.model), astroBoyHeadBanging(astroBoy.model) {
     //Output bone hierarchy of astroBoy model:
     printBoneHierarchy(astroBoy.model);
     
     window.setFramerateLimit(144);
     window.setVerticalSyncEnabled(true);
     
     //Various settings
     glClearColor(0.5, 0.5, 0.5, 0.0f);
     glEnable(GL_DEPTH_TEST);
     glDepthFunc(GL_LESS);
     glEnable(GL_TEXTURE_2D);
     
     //Lighting
     GLfloat light_color[] = {0.9, 0.9, 0.9, 1.f};
     glMaterialfv(GL_FRONT, GL_DIFFUSE, light_color);
     glEnable(GL_LIGHTING);
     glEnable(GL_LIGHT0);
     
     //Setup projection matrix
     glMatrixMode(GL_PROJECTION);
     glLoadIdentity();
     //45° Field of View, 4:3 ratio, display range : 0.1 unit <-> 100 units
     gluPerspective(45.0, 4.0 / 3.0, 0.1, 100.0);
     
     glMatrixMode(GL_MODELVIEW);
 }
 SFMLApplication(): contextSettings(32), 
         window(sf::VideoMode(800, 640), "Skeletal Animation Library", sf::Style::Default, contextSettings),
         astroBoyMovingGlasses(astroBoy.model), astroBoyHeadBanging(astroBoy.model) {
     //Output bone hierarchy of astroBoy model:
     printBoneHierarchy(astroBoy.model);
 }