2 * Copyright (c) 1993-1997, Silicon Graphics, Inc.
4 * Permission to use, copy, modify, and distribute this software for
5 * any purpose and without fee is hereby granted, provided that the above
6 * copyright notice appear in all copies and that both the copyright notice
7 * and this permission notice appear in supporting documentation, and that
8 * the name of Silicon Graphics, Inc. not be used in advertising
9 * or publicity pertaining to distribution of the software without specific,
10 * written prior permission.
12 * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
13 * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
14 * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
15 * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
16 * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
17 * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
18 * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
19 * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
20 * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
21 * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
22 * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
23 * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
25 * US Government Users Restricted Rights
26 * Use, duplication, or disclosure by the Government is subject to
27 * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
28 * (c)(1)(ii) of the Rights in Technical Data and Computer Software
29 * clause at DFARS 252.227-7013 and/or in similar or successor
30 * clauses in the FAR or the DOD or NASA FAR Supplement.
31 * Unpublished-- rights reserved under the copyright laws of the
32 * United States. Contractor/manufacturer is Silicon Graphics,
33 * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
35 * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
40 * This program shows how to composite modeling transformations
41 * to draw translated and rotated models.
42 * Interaction: pressing the d and y keys (day and year)
43 * alters the rotation of the planet around the sun.
48 static int year
= 0, day
= 0;
50 static void init(void)
52 glClearColor (0.0, 0.0, 0.0, 0.0);
53 glShadeModel (GL_FLAT
);
56 static void display(void)
58 glClear (GL_COLOR_BUFFER_BIT
);
59 glColor3f (1.0, 1.0, 1.0);
62 glutWireSphere(1.0, 20, 16); /* draw sun */
63 glRotatef ((GLfloat
) year
, 0.0, 1.0, 0.0);
64 glTranslatef (2.0, 0.0, 0.0);
65 glRotatef ((GLfloat
) day
, 0.0, 1.0, 0.0);
66 glutWireSphere(0.2, 10, 8); /* draw smaller planet */
71 static void reshape (int w
, int h
)
73 glViewport (0, 0, (GLsizei
) w
, (GLsizei
) h
);
74 glMatrixMode (GL_PROJECTION
);
76 gluPerspective(60.0, (GLfloat
) w
/(GLfloat
) h
, 1.0, 20.0);
77 glMatrixMode(GL_MODELVIEW
);
79 gluLookAt (0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
83 static void keyboard (unsigned char key
, int x
, int y
)
87 day
= (day
+ 10) % 360;
91 day
= (day
- 10) % 360;
95 year
= (year
+ 5) % 360;
99 year
= (year
- 5) % 360;
110 int main(int argc
, char** argv
)
112 glutInit(&argc
, argv
);
113 glutInitDisplayMode (GLUT_DOUBLE
| GLUT_RGB
);
114 glutInitWindowSize (500, 500);
115 glutInitWindowPosition (100, 100);
116 glutCreateWindow (argv
[0]);
118 glutDisplayFunc(display
);
119 glutReshapeFunc(reshape
);
120 glutKeyboardFunc(keyboard
);