home *** CD-ROM | disk | FTP | other *** search
- /* tea.c -- demo program for the MesaWS widget
- Copyright (C) 1995 Thorsten.Ohl @ Physik.TH-Darmstadt.de
-
- Parts Copyright (c) Mark J. Kilgard, 1994. See below.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id: tea.c,v 1.6 1996/09/27 10:21:53 ohl Exp $
-
- */
-
- /* No 3D graphics package is complete without a teapot demo.
- Use the cursor keys (and other MesaWorkstationWidget translations)
- to move the teapot around.
-
- FIXME: toggling the radiobuttons sends two expose events, which is
- a nuisance on affortable hardware ...
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdarg.h>
- #include <math.h>
- #ifndef M_PI
- #define M_PI 3.14159265358979323846
- #endif
- #include <X11/X.h>
- #include <X11/Intrinsic.h>
- #include <X11/StringDefs.h>
- #include <X11/Shell.h>
- #include <X11/Xaw/Command.h>
- #include <X11/Xaw/Form.h>
- #include <X11/Xaw/Toggle.h>
- #include <GL/xmesa.h>
- #include <GL/gl.h>
- #include <GL/glu.h>
- #include <GL/glx.h>
- #include <GL/MesaWorkstation.h>
-
- static char *RCS_Id =
- "@(#) $Id: tea.c,v 1.6 1996/09/27 10:21:53 ohl Exp $";
-
- void glutSolidTeapot (GLdouble scale);
- void glutWireTeapot (GLdouble scale);
-
- static GLint
- alloc_color (Widget w, Colormap cmap, int red, int green, int blue)
- {
- XColor xcolor;
- xcolor.red = red;
- xcolor.green = green;
- xcolor.blue = blue;
- xcolor.flags = DoRed | DoGreen | DoBlue;
- if (!XAllocColor (XtDisplay (w), cmap, &xcolor))
- {
- printf ("Couldn't allocate color!\n");
- exit (1);
- }
- return xcolor.pixel;
- }
-
- /* This is rather inefficient, but we don't mind for the moment,
- because it works. */
-
- static void
- translate_pixels (Widget to, Widget from, ...)
- {
- va_list ap;
- char *name;
- Colormap from_cmap, to_cmap;
- XColor xcolor;
-
- XtVaGetValues (from, XtNcolormap, &from_cmap, NULL);
- XtVaGetValues (to, XtNcolormap, &to_cmap, NULL);
-
- va_start (ap, from);
- for (name = va_arg (ap, char *); name != NULL; name = va_arg (ap, char *))
- {
- XtVaGetValues (from, name, &xcolor.pixel, NULL);
- XQueryColor (XtDisplay (from), from_cmap, &xcolor);
- if (!XAllocColor (XtDisplay (to), to_cmap, &xcolor))
- XtAppWarning (XtWidgetToApplicationContext (to),
- "Couldn't allocate color!\n");
- else
- XtVaSetValues (from, name, xcolor.pixel, NULL);
- }
- va_end (ap);
- }
-
- static Widget
- create_command (Widget parent, char *name, XtCallbackProc cb)
- {
- Widget ok;
- ok = XtVaCreateManagedWidget (name, commandWidgetClass, parent, NULL);
- XtAddCallback (ok, XtNcallback, cb, NULL);
- return ok;
- }
-
- GLuint light, material;
- Widget mesa;
-
- void
- setup_light (void)
- {
- GLfloat light_ambient[] = {0.0, 0.0, 0.0, 1.0};
- GLfloat light_diffuse[] = {1.0, 1.0, 1.0, 1.0};
- GLfloat light_specular[] = {1.0, 1.0, 1.0, 1.0};
-
- /* light_position is NOT default value */
- GLfloat light_position[] = {1.0, 0.0, 0.0, 0.0};
- GLfloat global_ambient[] = {0.75, 0.75, 0.75, 1.0};
-
- glLightfv (GL_LIGHT0, GL_AMBIENT, light_ambient);
- glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse);
- glLightfv (GL_LIGHT0, GL_SPECULAR, light_specular);
- glLightfv (GL_LIGHT0, GL_POSITION, light_position);
-
- glLightModelfv (GL_LIGHT_MODEL_AMBIENT, global_ambient);
- }
-
- static XtTranslations toggle_translations;
- static char toggle_translation_string[] =
- "<Btn1Down>,<Btn1Up>: set() notify()";
-
- enum light_source { FIX_OBJ, FIX_OBS };
-
- static void
- light_cb (Widget w, XtPointer client_data, XtPointer junk)
- {
- switch ((enum light_source) client_data)
- {
- case FIX_OBJ:
- /* Fixed wrt object: perform the light setup in the the LIGHT list. */
- glNewList (light, GL_COMPILE);
- setup_light ();
- glEndList ();
- break;
- case FIX_OBS:
- /* Fixed wrt observer: nuke the LIGHT list and setup the
- light in the default coordinate system. */
- glNewList (light, GL_COMPILE);
- glEndList ();
- glPushMatrix ();
- glLoadIdentity ();
- setup_light ();
- glPopMatrix ();
- break;
- }
- GLwRedrawObjects (mesa);
- }
-
- enum material_mode { MAT_GOLD, MAT_RUBY, MAT_EMERALD };
-
- static void
- material_cb (Widget w, XtPointer client_data, XtPointer junk)
- {
- GLfloat gold_ambient[] = {0.24725, 0.1995, 0.0745, 1.0};
- GLfloat gold_diffuse[] = {0.75164, 0.60648, 0.22648, 1.0};
- GLfloat gold_specular[] = {0.628281, 0.555802, 0.366065, 1.0};
- GLfloat gold_shine = 0.4;
-
- GLfloat ruby_ambient[] = {0.1745, 0.01175, 0.01175, 1.0};
- GLfloat ruby_diffuse[] = {0.61424, 0.04136, 0.04136, 1.0};
- GLfloat ruby_specular[] = {0.727811, 0.626959, 0.626959, 1.0};
- GLfloat ruby_shine = 0.6;
-
- GLfloat emerald_ambient[] = {0.0215, 0.1745, 0.0215, 1.0};
- GLfloat emerald_diffuse[] = {0.07568, 0.61424, 0.07568, 1.0};
- GLfloat emerald_specular[] = {0.633, 0.727811, 0.633, 1.0};
- GLfloat emerald_shine = 0.6;
-
- glNewList (material, GL_COMPILE);
- {
- switch ((enum material_mode) client_data)
- {
- case MAT_GOLD:
- glMaterialfv (GL_FRONT, GL_AMBIENT, gold_ambient);
- glMaterialfv (GL_FRONT, GL_DIFFUSE, gold_diffuse);
- glMaterialfv (GL_FRONT, GL_SPECULAR, gold_specular);
- glMaterialf (GL_FRONT, GL_SHININESS, gold_shine*128.0);
- break;
- case MAT_RUBY:
- glMaterialfv (GL_FRONT, GL_AMBIENT, ruby_ambient);
- glMaterialfv (GL_FRONT, GL_DIFFUSE, ruby_diffuse);
- glMaterialfv (GL_FRONT, GL_SPECULAR, ruby_specular);
- glMaterialf (GL_FRONT, GL_SHININESS, ruby_shine*128.0);
- break;
- case MAT_EMERALD:
- glMaterialfv (GL_FRONT, GL_AMBIENT, emerald_ambient);
- glMaterialfv (GL_FRONT, GL_DIFFUSE, emerald_diffuse);
- glMaterialfv (GL_FRONT, GL_SPECULAR, emerald_specular);
- glMaterialf (GL_FRONT, GL_SHININESS, emerald_shine*128.0);
- break;
- }
- }
- glEndList ();
- GLwRedrawObjects (mesa);
- }
-
- void
- quit_function (Widget w, XtPointer closure, XtPointer call_data)
- {
- exit (0);
- }
-
- static String fallback_resources[] =
- {
- "*MesaWorkstation.debug: false",
- "*MesaWorkstation.installColormap: true",
- "*MesaWorkstation.ximage: true",
- "*MesaWorkstation.doublebuffer: false",
- "*quit.label: Exit",
- "*mesa.width: 400",
- "*mesa.height: 400",
- NULL
- };
-
- int
- main (int argc, char *argv[])
- {
- Widget top, frame, quit;
- Widget fix_obj, fix_obs;
- Widget gold, ruby, emerald;
- XtAppContext app_context;
- Boolean cmap_installed;
- GLuint teapot;
-
- XtSetLanguageProc (NULL, NULL, NULL);
- top = XtVaAppInitialize (&app_context, "Tea", NULL, 0,
- &argc, argv, fallback_resources, NULL);
-
- frame = XtVaCreateManagedWidget ("frame", formWidgetClass,
- top,
- NULL);
- mesa = XtVaCreateManagedWidget ("mesa", mesaWorkstationWidgetClass,
- frame,
- GLwNrgba, True,
- NULL);
-
- fix_obj = XtVaCreateManagedWidget ("fix_obj", toggleWidgetClass,
- frame,
- XtNlabel, "light fixed wrt object",
- XtNstate, False,
- XtNfromHoriz, mesa, XtNhorizDistance, 10,
- NULL);
- fix_obs = XtVaCreateManagedWidget ("fix_obs", toggleWidgetClass,
- frame,
- XtNlabel, "light fixed wrt observer",
- XtNstate, True,
- XtNradioGroup, fix_obj,
- XtNfromVert, fix_obj, XtNvertDistance, 0,
- XtNfromHoriz, mesa, XtNhorizDistance, 10,
- NULL);
- toggle_translations = XtParseTranslationTable (toggle_translation_string);
- XtOverrideTranslations (fix_obj, toggle_translations);
- XtOverrideTranslations (fix_obs, toggle_translations);
- XtAddCallback (fix_obj, XtNcallback, light_cb, (XtPointer) FIX_OBJ);
- XtAddCallback (fix_obs, XtNcallback, light_cb, (XtPointer) FIX_OBS);
-
- gold = XtVaCreateManagedWidget ("gold", toggleWidgetClass,
- frame,
- XtNlabel, "gold",
- XtNstate, True,
- XtNfromVert, fix_obs, XtNvertDistance, 20,
- XtNfromHoriz, mesa, XtNhorizDistance, 10,
- NULL);
- ruby = XtVaCreateManagedWidget ("ruby", toggleWidgetClass,
- frame,
- XtNlabel, "ruby",
- XtNstate, False,
- XtNradioGroup, gold,
- XtNfromVert, gold, XtNvertDistance, 0,
- XtNfromHoriz, mesa, XtNhorizDistance, 10,
- NULL);
- emerald = XtVaCreateManagedWidget ("emerald", toggleWidgetClass,
- frame,
- XtNlabel, "emerald",
- XtNstate, False,
- XtNradioGroup, gold,
- XtNfromVert, ruby, XtNvertDistance, 0,
- XtNfromHoriz, mesa, XtNhorizDistance, 10,
- NULL);
- XtOverrideTranslations (gold, toggle_translations);
- XtOverrideTranslations (ruby, toggle_translations);
- XtOverrideTranslations (emerald, toggle_translations);
- XtAddCallback (gold, XtNcallback, material_cb, (XtPointer) MAT_GOLD);
- XtAddCallback (ruby, XtNcallback, material_cb, (XtPointer) MAT_RUBY);
- XtAddCallback (emerald, XtNcallback, material_cb, (XtPointer) MAT_EMERALD);
-
- quit = XtVaCreateManagedWidget ("quit", commandWidgetClass,
- frame,
- XtNfromVert, emerald, XtNvertDistance, 50,
- XtNfromHoriz, mesa, XtNhorizDistance, 10,
- NULL);
- XtAddCallback (quit, XtNcallback, quit_function, NULL);
-
- XtRealizeWidget (top);
-
- XtVaGetValues (mesa, GLwNinstallColormap, &cmap_installed, NULL);
- if (cmap_installed)
- {
- translate_pixels (mesa, quit,
- XtNbackground, XtNforeground, XtNborder, NULL);
- translate_pixels (mesa, fix_obj,
- XtNbackground, XtNforeground, XtNborder, NULL);
- translate_pixels (mesa, fix_obs,
- XtNbackground, XtNforeground, XtNborder, NULL);
- translate_pixels (mesa, gold,
- XtNbackground, XtNforeground, XtNborder, NULL);
- translate_pixels (mesa, ruby,
- XtNbackground, XtNforeground, XtNborder, NULL);
- translate_pixels (mesa, emerald,
- XtNbackground, XtNforeground, XtNborder, NULL);
- translate_pixels (mesa, frame, XtNbackground, XtNborder, NULL);
- XWarpPointer (XtDisplay (mesa), None, XtWindow (mesa),
- 0, 0, 0, 0, 0, 0);
- }
-
- GLwMakeCurrent (mesa);
-
- glFrontFace (GL_CW);
- glEnable (GL_LIGHTING);
- glEnable (GL_LIGHT0);
- glEnable (GL_AUTO_NORMAL);
- glEnable (GL_NORMALIZE);
- glEnable (GL_DEPTH_TEST);
- glDepthFunc (GL_LESS);
-
- GLwSetFrustumProjection (mesa, -1.0, 1.0, -1.0, 1.0, 1.0, 10.0);
- GLwSetPolarView (mesa, 3.0, 2*M_PI/3, -M_PI/3);
-
- teapot = glGenLists (1);
- glNewList (teapot, GL_COMPILE);
- {
- glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glutSolidTeapot (1.0);
- }
- glEndList ();
-
- light = glGenLists (1);
- glNewList (light, GL_COMPILE);
- glEndList ();
-
- material = glGenLists (1);
- glNewList (material, GL_COMPILE);
- glEndList ();
-
- material_cb (NULL, (XtPointer) MAT_GOLD, NULL);
- light_cb (NULL, (XtPointer) FIX_OBS, NULL);
-
- GLwPostObject (mesa, light);
- GLwPostObject (mesa, material);
- GLwPostObject (mesa, teapot);
-
- XtAppMainLoop (app_context);
- return (0);
- }
-
-
- /* Copyright (c) Mark J. Kilgard, 1994. */
-
- /**
- (c) Copyright 1993, Silicon Graphics, Inc.
-
- ALL RIGHTS RESERVED
-
- Permission to use, copy, modify, and distribute this software
- for any purpose and without fee is hereby granted, provided
- that the above copyright notice appear in all copies and that
- both the copyright notice and this permission notice appear in
- supporting documentation, and that the name of Silicon
- Graphics, Inc. not be used in advertising or publicity
- pertaining to distribution of the software without specific,
- written prior permission.
-
- THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU
- "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR
- OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF
- MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO
- EVENT SHALL SILICON GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE
- ELSE FOR ANY DIRECT, SPECIAL, INCIDENTAL, INDIRECT OR
- CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER,
- INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSS OF USE,
- SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD PARTIES, WHETHER OR
- NOT SILICON GRAPHICS, INC. HAS BEEN ADVISED OF THE POSSIBILITY
- OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE OR
- PERFORMANCE OF THIS SOFTWARE.
-
- US Government Users Restricted Rights
-
- Use, duplication, or disclosure by the Government is subject to
- restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
- (c)(1)(ii) of the Rights in Technical Data and Computer
- Software clause at DFARS 252.227-7013 and/or in similar or
- successor clauses in the FAR or the DOD or NASA FAR
- Supplement. Unpublished-- rights reserved under the copyright
- laws of the United States. Contractor/manufacturer is Silicon
- Graphics, Inc., 2011 N. Shoreline Blvd., Mountain View, CA
- 94039-7311.
-
- OpenGL(TM) is a trademark of Silicon Graphics, Inc.
- */
-
- #include <GL/gl.h>
- /* #include <GL/glut.h> */
-
- /* Rim, body, lid, and bottom data must be reflected in x
- and y; handle and spout data across the y axis only. */
-
- long patchdata[][16] =
- {
- /* rim */
- {102, 103, 104, 105, 4, 5, 6, 7, 8, 9, 10, 11,
- 12, 13, 14, 15},
- /* body */
- {12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
- 24, 25, 26, 27},
- {24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36,
- 37, 38, 39, 40},
- /* lid */
- {96, 96, 96, 96, 97, 98, 99, 100, 101, 101, 101,
- 101, 0, 1, 2, 3,},
- {0, 1, 2, 3, 106, 107, 108, 109, 110, 111, 112,
- 113, 114, 115, 116, 117},
- /* bottom */
- {118, 118, 118, 118, 124, 122, 119, 121, 123, 126,
- 125, 120, 40, 39, 38, 37},
- /* handle */
- {41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
- 53, 54, 55, 56},
- {53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
- 28, 65, 66, 67},
- /* spout */
- {68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
- 80, 81, 82, 83},
- {80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
- 92, 93, 94, 95}
- };
- /* *INDENT-OFF* */
-
- float cpdata[][3] =
- {
- {0.2, 0, 2.7}, {0.2, -0.112, 2.7}, {0.112, -0.2, 2.7}, {0,
- -0.2, 2.7}, {1.3375, 0, 2.53125}, {1.3375, -0.749, 2.53125},
- {0.749, -1.3375, 2.53125}, {0, -1.3375, 2.53125}, {1.4375,
- 0, 2.53125}, {1.4375, -0.805, 2.53125}, {0.805, -1.4375,
- 2.53125}, {0, -1.4375, 2.53125}, {1.5, 0, 2.4}, {1.5, -0.84,
- 2.4}, {0.84, -1.5, 2.4}, {0, -1.5, 2.4}, {1.75, 0, 1.875},
- {1.75, -0.98, 1.875}, {0.98, -1.75, 1.875}, {0, -1.75,
- 1.875}, {2, 0, 1.35}, {2, -1.12, 1.35}, {1.12, -2, 1.35},
- {0, -2, 1.35}, {2, 0, 0.9}, {2, -1.12, 0.9}, {1.12, -2,
- 0.9}, {0, -2, 0.9}, {-2, 0, 0.9}, {2, 0, 0.45}, {2, -1.12,
- 0.45}, {1.12, -2, 0.45}, {0, -2, 0.45}, {1.5, 0, 0.225},
- {1.5, -0.84, 0.225}, {0.84, -1.5, 0.225}, {0, -1.5, 0.225},
- {1.5, 0, 0.15}, {1.5, -0.84, 0.15}, {0.84, -1.5, 0.15}, {0,
- -1.5, 0.15}, {-1.6, 0, 2.025}, {-1.6, -0.3, 2.025}, {-1.5,
- -0.3, 2.25}, {-1.5, 0, 2.25}, {-2.3, 0, 2.025}, {-2.3, -0.3,
- 2.025}, {-2.5, -0.3, 2.25}, {-2.5, 0, 2.25}, {-2.7, 0,
- 2.025}, {-2.7, -0.3, 2.025}, {-3, -0.3, 2.25}, {-3, 0,
- 2.25}, {-2.7, 0, 1.8}, {-2.7, -0.3, 1.8}, {-3, -0.3, 1.8},
- {-3, 0, 1.8}, {-2.7, 0, 1.575}, {-2.7, -0.3, 1.575}, {-3,
- -0.3, 1.35}, {-3, 0, 1.35}, {-2.5, 0, 1.125}, {-2.5, -0.3,
- 1.125}, {-2.65, -0.3, 0.9375}, {-2.65, 0, 0.9375}, {-2,
- -0.3, 0.9}, {-1.9, -0.3, 0.6}, {-1.9, 0, 0.6}, {1.7, 0,
- 1.425}, {1.7, -0.66, 1.425}, {1.7, -0.66, 0.6}, {1.7, 0,
- 0.6}, {2.6, 0, 1.425}, {2.6, -0.66, 1.425}, {3.1, -0.66,
- 0.825}, {3.1, 0, 0.825}, {2.3, 0, 2.1}, {2.3, -0.25, 2.1},
- {2.4, -0.25, 2.025}, {2.4, 0, 2.025}, {2.7, 0, 2.4}, {2.7,
- -0.25, 2.4}, {3.3, -0.25, 2.4}, {3.3, 0, 2.4}, {2.8, 0,
- 2.475}, {2.8, -0.25, 2.475}, {3.525, -0.25, 2.49375},
- {3.525, 0, 2.49375}, {2.9, 0, 2.475}, {2.9, -0.15, 2.475},
- {3.45, -0.15, 2.5125}, {3.45, 0, 2.5125}, {2.8, 0, 2.4},
- {2.8, -0.15, 2.4}, {3.2, -0.15, 2.4}, {3.2, 0, 2.4}, {0, 0,
- 3.15}, {0.8, 0, 3.15}, {0.8, -0.45, 3.15}, {0.45, -0.8,
- 3.15}, {0, -0.8, 3.15}, {0, 0, 2.85}, {1.4, 0, 2.4}, {1.4,
- -0.784, 2.4}, {0.784, -1.4, 2.4}, {0, -1.4, 2.4}, {0.4, 0,
- 2.55}, {0.4, -0.224, 2.55}, {0.224, -0.4, 2.55}, {0, -0.4,
- 2.55}, {1.3, 0, 2.55}, {1.3, -0.728, 2.55}, {0.728, -1.3,
- 2.55}, {0, -1.3, 2.55}, {1.3, 0, 2.4}, {1.3, -0.728, 2.4},
- {0.728, -1.3, 2.4}, {0, -1.3, 2.4}, {0, 0, 0}, {1.425,
- -0.798, 0}, {1.5, 0, 0.075}, {1.425, 0, 0}, {0.798, -1.425,
- 0}, {0, -1.5, 0.075}, {0, -1.425, 0}, {1.5, -0.84, 0.075},
- {0.84, -1.5, 0.075}
- };
-
- static float tex[2][2][2] =
- {
- { {0, 0},
- {1, 0}},
- { {0, 1},
- {1, 1}}
- };
-
- /* *INDENT-ON* */
-
- static void
- teapot(GLint grid, GLdouble scale, GLenum type)
- {
- float p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3];
- long i, j, k, l;
-
- glPushAttrib(GL_ENABLE_BIT | GL_EVAL_BIT);
- glEnable(GL_AUTO_NORMAL);
- glEnable(GL_NORMALIZE);
- glEnable(GL_MAP2_VERTEX_3);
- glEnable(GL_MAP2_TEXTURE_COORD_2);
- glPushMatrix();
- /* glRotatef(270.0, 1.0, 0.0, 0.0); */
- /* Rotate it upwards in the standard MesaWorkstation
- coordinate system. */
- glRotatef(90.0, 0.0, 1.0, 0.0);
- glRotatef(90.0, 1.0, 0.0, 0.0);
- glScalef(0.5 * scale, 0.5 * scale, 0.5 * scale);
- glTranslatef(0.0, 0.0, -1.5);
- for (i = 0; i < 10; i++) {
- for (j = 0; j < 4; j++) {
- for (k = 0; k < 4; k++) {
- for (l = 0; l < 3; l++) {
- p[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
- q[j][k][l] = cpdata[patchdata[i][j * 4 + (3 - k)]][l];
- if (l == 1)
- q[j][k][l] *= -1.0;
- if (i < 6) {
- r[j][k][l] =
- cpdata[patchdata[i][j * 4 + (3 - k)]][l];
- if (l == 0)
- r[j][k][l] *= -1.0;
- s[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
- if (l == 0)
- s[j][k][l] *= -1.0;
- if (l == 1)
- s[j][k][l] *= -1.0;
- }
- }
- }
- }
- glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, 0, 1, 4, 2,
- &tex[0][0][0]);
- glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
- &p[0][0][0]);
- glMapGrid2f(grid, 0.0, 1.0, grid, 0.0, 1.0);
- glEvalMesh2(type, 0, grid, 0, grid);
- glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
- &q[0][0][0]);
- glEvalMesh2(type, 0, grid, 0, grid);
- if (i < 6) {
- glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
- &r[0][0][0]);
- glEvalMesh2(type, 0, grid, 0, grid);
- glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
- &s[0][0][0]);
- glEvalMesh2(type, 0, grid, 0, grid);
- }
- }
- glPopMatrix();
- glPopAttrib();
- }
-
- /* CENTRY */
- void
- glutSolidTeapot(GLdouble scale)
- {
- teapot(14, scale, GL_FILL);
- }
-
- void
- glutWireTeapot(GLdouble scale)
- {
- teapot(10, scale, GL_LINE);
- }
- /* ENDCENTRY */
-