4 * Teapot(tm) rendering code.
6 * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
7 * Written by Pawel W. Olszta, <olszta@sourceforge.net>
8 * Creation date: Fri Dec 24 1999
10 * Permission is hereby granted, free of charge, to any person obtaining a
11 * copy of this software and associated documentation files (the "Software"),
12 * to deal in the Software without restriction, including without limitation
13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 * and/or sell copies of the Software, and to permit persons to whom the
15 * Software is furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included
18 * in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 * Original teapot code copyright follows:
33 * (c) Copyright 1993, Silicon Graphics, Inc.
37 * Permission to use, copy, modify, and distribute this software
38 * for any purpose and without fee is hereby granted, provided
39 * that the above copyright notice appear in all copies and that
40 * both the copyright notice and this permission notice appear in
41 * supporting documentation, and that the name of Silicon
42 * Graphics, Inc. not be used in advertising or publicity
43 * pertaining to distribution of the software without specific,
44 * written prior permission.
46 * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU
47 * "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR
48 * OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF
49 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO
50 * EVENT SHALL SILICON GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE
51 * ELSE FOR ANY DIRECT, SPECIAL, INCIDENTAL, INDIRECT OR
52 * CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER,
53 * INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSS OF USE,
54 * SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD PARTIES, WHETHER OR
55 * NOT SILICON GRAPHICS, INC. HAS BEEN ADVISED OF THE POSSIBILITY
56 * OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
57 * ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE OR
58 * PERFORMANCE OF THIS SOFTWARE.
60 * US Government Users Restricted Rights
62 * Use, duplication, or disclosure by the Government is subject to
63 * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
64 * (c)(1)(ii) of the Rights in Technical Data and Computer
65 * Software clause at DFARS 252.227-7013 and/or in similar or
66 * successor clauses in the FAR or the DOD or NASA FAR
67 * Supplement. Unpublished-- rights reserved under the copyright
68 * laws of the United States. Contractor/manufacturer is Silicon
69 * Graphics, Inc., 2011 N. Shoreline Blvd., Mountain View, CA
72 * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
79 #define G_LOG_DOMAIN "freeglut-teapot"
81 #include "../include/GL/freeglut.h"
82 #include "freeglut_internal.h"
84 /* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
87 * Rim, body, lid, and bottom data must be reflected in x and y;
88 * handle and spout data across the y axis only.
90 static int patchdata[][16] =
92 { 102, 103, 104, 105, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, /* rim */
93 { 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 }, /* body */
94 { 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 },
95 { 96, 96, 96, 96, 97, 98, 99, 100, 101, 101, 101, 101, 0, 1, 2, 3 }, /* lid */
96 { 0, 1, 2, 3, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117 },
97 { 118, 118, 118, 118, 124, 122, 119, 121, 123, 126, 125, 120, 40, 39, 38, 37 }, /* bottom */
98 { 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56 }, /* handle */
99 { 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 28, 65, 66, 67 },
100 { 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83 }, /* spout */
101 { 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95 }
104 static double cpdata[][3] =
106 {0.2, 0, 2.7}, {0.2, -0.112, 2.7}, {0.112, -0.2, 2.7}, {0,
107 -0.2, 2.7}, {1.3375, 0, 2.53125}, {1.3375, -0.749, 2.53125},
108 {0.749, -1.3375, 2.53125}, {0, -1.3375, 2.53125}, {1.4375,
109 0, 2.53125}, {1.4375, -0.805, 2.53125}, {0.805, -1.4375,
110 2.53125}, {0, -1.4375, 2.53125}, {1.5, 0, 2.4}, {1.5, -0.84,
111 2.4}, {0.84, -1.5, 2.4}, {0, -1.5, 2.4}, {1.75, 0, 1.875},
112 {1.75, -0.98, 1.875}, {0.98, -1.75, 1.875}, {0, -1.75,
113 1.875}, {2, 0, 1.35}, {2, -1.12, 1.35}, {1.12, -2, 1.35},
114 {0, -2, 1.35}, {2, 0, 0.9}, {2, -1.12, 0.9}, {1.12, -2,
115 0.9}, {0, -2, 0.9}, {-2, 0, 0.9}, {2, 0, 0.45}, {2, -1.12,
116 0.45}, {1.12, -2, 0.45}, {0, -2, 0.45}, {1.5, 0, 0.225},
117 {1.5, -0.84, 0.225}, {0.84, -1.5, 0.225}, {0, -1.5, 0.225},
118 {1.5, 0, 0.15}, {1.5, -0.84, 0.15}, {0.84, -1.5, 0.15}, {0,
119 -1.5, 0.15}, {-1.6, 0, 2.025}, {-1.6, -0.3, 2.025}, {-1.5,
120 -0.3, 2.25}, {-1.5, 0, 2.25}, {-2.3, 0, 2.025}, {-2.3, -0.3,
121 2.025}, {-2.5, -0.3, 2.25}, {-2.5, 0, 2.25}, {-2.7, 0,
122 2.025}, {-2.7, -0.3, 2.025}, {-3, -0.3, 2.25}, {-3, 0,
123 2.25}, {-2.7, 0, 1.8}, {-2.7, -0.3, 1.8}, {-3, -0.3, 1.8},
124 {-3, 0, 1.8}, {-2.7, 0, 1.575}, {-2.7, -0.3, 1.575}, {-3,
125 -0.3, 1.35}, {-3, 0, 1.35}, {-2.5, 0, 1.125}, {-2.5, -0.3,
126 1.125}, {-2.65, -0.3, 0.9375}, {-2.65, 0, 0.9375}, {-2,
127 -0.3, 0.9}, {-1.9, -0.3, 0.6}, {-1.9, 0, 0.6}, {1.7, 0,
128 1.425}, {1.7, -0.66, 1.425}, {1.7, -0.66, 0.6}, {1.7, 0,
129 0.6}, {2.6, 0, 1.425}, {2.6, -0.66, 1.425}, {3.1, -0.66,
130 0.825}, {3.1, 0, 0.825}, {2.3, 0, 2.1}, {2.3, -0.25, 2.1},
131 {2.4, -0.25, 2.025}, {2.4, 0, 2.025}, {2.7, 0, 2.4}, {2.7,
132 -0.25, 2.4}, {3.3, -0.25, 2.4}, {3.3, 0, 2.4}, {2.8, 0,
133 2.475}, {2.8, -0.25, 2.475}, {3.525, -0.25, 2.49375},
134 {3.525, 0, 2.49375}, {2.9, 0, 2.475}, {2.9, -0.15, 2.475},
135 {3.45, -0.15, 2.5125}, {3.45, 0, 2.5125}, {2.8, 0, 2.4},
136 {2.8, -0.15, 2.4}, {3.2, -0.15, 2.4}, {3.2, 0, 2.4}, {0, 0,
137 3.15}, {0.8, 0, 3.15}, {0.8, -0.45, 3.15}, {0.45, -0.8,
138 3.15}, {0, -0.8, 3.15}, {0, 0, 2.85}, {1.4, 0, 2.4}, {1.4,
139 -0.784, 2.4}, {0.784, -1.4, 2.4}, {0, -1.4, 2.4}, {0.4, 0,
140 2.55}, {0.4, -0.224, 2.55}, {0.224, -0.4, 2.55}, {0, -0.4,
141 2.55}, {1.3, 0, 2.55}, {1.3, -0.728, 2.55}, {0.728, -1.3,
142 2.55}, {0, -1.3, 2.55}, {1.3, 0, 2.4}, {1.3, -0.728, 2.4},
143 {0.728, -1.3, 2.4}, {0, -1.3, 2.4}, {0, 0, 0}, {1.425,
144 -0.798, 0}, {1.5, 0, 0.075}, {1.425, 0, 0}, {0.798, -1.425,
145 0}, {0, -1.5, 0.075}, {0, -1.425, 0}, {1.5, -0.84, 0.075},
149 static double tex[2][2][2] =
151 { {0.0, 0.0}, {1.0, 0.0} },
152 { {0.0, 1.0}, {1.0, 1.0} }
155 static void teapot( GLint grid, GLdouble scale, GLenum type )
157 double p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3];
160 glPushAttrib( GL_ENABLE_BIT | GL_EVAL_BIT );
161 glEnable( GL_AUTO_NORMAL );
162 glEnable( GL_NORMALIZE );
163 glEnable( GL_MAP2_VERTEX_3 );
164 glEnable( GL_MAP2_TEXTURE_COORD_2 );
167 glRotated(270.0, 1.0, 0.0, 0.0);
168 glScaled(0.5 * scale, 0.5 * scale, 0.5 * scale);
169 glTranslated(0.0, 0.0, -1.5);
171 for (i = 0; i < 10; i++) {
172 for (j = 0; j < 4; j++) {
173 for (k = 0; k < 4; k++) {
174 for (l = 0; l < 3; l++) {
175 p[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
176 q[j][k][l] = cpdata[patchdata[i][j * 4 + (3 - k)]][l];
181 cpdata[patchdata[i][j * 4 + (3 - k)]][l];
184 s[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
194 glMap2d(GL_MAP2_TEXTURE_COORD_2, 0.0, 1.0, 2, 2, 0.0, 1.0, 4, 2,
196 glMap2d(GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 4, 0.0, 1.0, 12, 4,
198 glMapGrid2d(grid, 0.0, 1.0, grid, 0.0, 1.0);
199 glEvalMesh2(type, 0, grid, 0, grid);
200 glMap2d(GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 4, 0.0, 1.0, 12, 4,
202 glEvalMesh2(type, 0, grid, 0, grid);
204 glMap2d(GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 4, 0.0, 1.0, 12, 4,
206 glEvalMesh2(type, 0, grid, 0, grid);
207 glMap2d(GL_MAP2_VERTEX_3, 0.0, 1.0, 3, 4, 0.0, 1.0, 12, 4,
209 glEvalMesh2(type, 0, grid, 0, grid);
218 /* -- INTERFACE FUNCTIONS -------------------------------------------------- */
221 * Renders a beautiful wired teapot...
223 void FGAPIENTRY glutWireTeapot( GLdouble size )
226 * We will use the general teapot rendering code
228 teapot( 10, size, GL_LINE );
232 * Renders a beautiful filled teapot...
234 void FGAPIENTRY glutSolidTeapot( GLdouble size )
237 * We will use the general teapot rendering code
239 teapot( 7, size, GL_FILL );
242 /*** END OF FILE ***/