GLSL Programming/GLUT/Layers of Textures

#include <GL/gl.h> #include <GL/glu.h> #include <GL/glut.h> static int spin = 0; static int kanan = 0; static int kiri = 0; void init(void) { GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 }; GLfloat mat_shininess[] = { 50.0 }; GLfloat light_position[] = { 1.0, 1.0, 1.0, 0.0 }; glClearColor (0.1, 0.1, 0.0, 0.0); glShadeModel (GL_SMOOTH); glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess); glLightfv(GL_LIGHT0, GL_POSITION, light_position); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glEnable(GL_DEPTH_TEST); } void setViewport(int left, int bottom, int width, int height){ glViewport(left, bottom, width, height); } void display(void) { GLfloat position[] = {0.0, 0.0, 2.0, 0.5}; glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); glTranslatef(0.0, 0.0, -5.0); glPushMatrix(); glRotated((GLdouble) spin, spin, spin, 0.0); glLightfv(GL_LIGHT0, GL_POSITION, position); glTranslated(0.0, 0.0, 1.5); glDisable(GL_LIGHTING); glColor3f(1.0, 1.0, 0.0); glutWireSphere(0.1,50,16); glEnable(GL_LIGHTING); glPopMatrix();

   //membuat bumi

glutSolidSphere (0.5, 100, 32); glPopMatrix(); glFlush (); } void reshape (int w, int h) { glViewport (0, 0, (GLsizei) w, (GLsizei) h); glMatrixMode (GL_PROJECTION); glLoadIdentity(); if (w <= h) glOrtho (-1.5, 1.5, -1.5*(GLfloat)h/(GLfloat)w, 1.5*(GLfloat)h/(GLfloat)w, -10.0, 10.0); else glOrtho (-1.5*(GLfloat)w/(GLfloat)h, 1.5*(GLfloat)w/(GLfloat)h, -1.5, 1.5, -10.0, 10.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } void mouse(int button, int state, int x, int y) { switch (button) { case GLUT_LEFT_BUTTON: if (state == GLUT_DOWN) { spin = (spin + 10) % 360; glutPostRedisplay(); } break; default: break; } } void update(int value){ glutPostRedisplay(); glutTimerFunc(10,update,0); spin = (spin + 1) % 360; glutPostRedisplay(); } int main(int argc, char** argv) { glutInit(&argc, argv); glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); glutInitWindowSize (700, 500); glutInitWindowPosition (100, 100); glutCreateWindow (argv[0]); init (); glutTimerFunc(100,update,0); glutDisplayFunc(display); glutReshapeFunc(reshape); glutMouseFunc(mouse); glutKeyboardFunc(keyPressed); glutMainLoop(); return 0; }