Cara membuat boneka salju 3D di OpenGL

Berikut merupakan script lengkap membuat boneka salju 3D :

1. #include <stdlib.h>
2. #include <glut.h>
3. int w=480, h=480, z=0;
4. int x1=0, y1=0, sudut=0, z1=0;
5.  
6. void bawah ()
7. {
8.      glColor3ub(255, 255, 255);
9.      glutWireSphere(5,100,100);
10. }
11. void tengah()
12. {
13.     glColor3ub(255, 255, 255);
14.     glutWireSphere(4,100,100);
15. }
16. void atas()
17. {
18.     glColor3ub(255, 255, 255);
19.     glutWireSphere(3,100,100);
20. }
21.  
22. void matakanan()
23. {
24.     glColor3ub(0, 0, 0);
25.     glutWireSphere(0.5,100,100);
26. }
27. void matakiri()
28. {
29.     glColor3ub(0, 0, 0);
30.     glutWireSphere(0.5,100,100);
31. }
32. void topi()
33. {
34.     glColor3ub(0, 55, 252);
35.     glutWireCone(3,5,100,100);
36. }
37.  
38. void renderScene(void){
39.  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
40.  glLoadIdentity();
41.  
42.  glPushMatrix();
43.  glTranslatef(0,-10,z);
44.  glRotatef(sudut,x1,y1,z1);
45.  bawah();
46.  glPopMatrix();
47.  
48.  glPushMatrix();
49.  glTranslatef(0,-5,z);
50.  glRotatef(sudut,x1,y1,z1);
51.  tengah();
52.  glPopMatrix();
53.  
54.  glPushMatrix();
55.  glTranslatef(0,0,z);
56.  glRotatef(sudut,x1,y1,z1);
57.  atas();
58.  glPopMatrix();
59.  
60.  glPushMatrix();
61.  glTranslatef(1.5,0.5,z);
62.  glRotatef(sudut,x1,y1,z1);
63.  matakanan();
64.  glPopMatrix();
65.  
66.  glPushMatrix();
67.  glTranslatef(-1.5,0.5,z);
68.  glRotatef(sudut,x1,y1,z1);
69.  matakiri();
70.  glPopMatrix();
71.  
72.  glPushMatrix();
73.  glTranslatef(0,2,z);
74.  glRotatef(280,100,y1,z1);
75.  topi();
76.  glPopMatrix();
77.  
78.  glutSwapBuffers();
79. }
80. void resize(int w1, int h1){
81.  glViewport(0,0,w1,h1);
82.  glMatrixMode(GL_PROJECTION);
83.  glLoadIdentity();
84.  gluPerspective(45.0,(float) w1/(float) h1, 1.0,300.0);
85.  glMatrixMode(GL_MODELVIEW);
86.  glLoadIdentity();
87. }
88.  
89. void myKeyboard(unsigned char key, int x, int y)
90. {
91.  if (key =='a') z+=5;
92.  else if (key == 'd') z-=5;
93. }
94. void init(){
95.  glClearColor(0,0,0,1);
96.  glEnable(GL_DEPTH_TEST);
97.  glMatrixMode(GL_PROJECTION);
98.  glLoadIdentity();
99.  gluPerspective(45.0,(GLdouble) w/(GLdouble) h, 1.0,300.0);
100.  glMatrixMode(GL_MODELVIEW);
101. }
102. void timer(int value){
103.  glutPostRedisplay();
104.  glutTimerFunc(50,timer,0);
105. }
106. void main (int argc, char **argv){
107.  glutInit(&argc, argv);
108.  glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH | GLUT_RGBA);
109.  glutInitWindowPosition(100,100);
110.  glutInitWindowSize(w,h);
111.  glutCreateWindow("Manusia Salju");
112.  gluOrtho2D(-w/2,w/2,-h/2,h/2);
113.  glutDisplayFunc(renderScene);
114.  glutReshapeFunc(resize);
115.  glutKeyboardFunc(myKeyboard);
116.  glutTimerFunc(1,timer,0);
117.  init();
118.  glutMainLoop();
119. }