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Diffstat (limited to 'progs/redbook/bezmesh.c')
| -rw-r--r-- | progs/redbook/bezmesh.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/progs/redbook/bezmesh.c b/progs/redbook/bezmesh.c deleted file mode 100644 index 1abc7488bc..0000000000 --- a/progs/redbook/bezmesh.c +++ /dev/null @@ -1,162 +0,0 @@ - -/* 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 - * Unpublished-- rights reserved under the copyright laws of the - * United States.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. - */ -/* bezsurf.c - * This program renders a lighted, filled Bezier surface, - * using two-dimensional evaluators. - */ -#include <stdlib.h> -#include <GL/glut.h> - -GLfloat ctrlpoints[4][4][3] = -{ - { - {-1.5, -1.5, 4.0}, - {-0.5, -1.5, 2.0}, - {0.5, -1.5, -1.0}, - {1.5, -1.5, 2.0}}, - { - {-1.5, -0.5, 1.0}, - {-0.5, -0.5, 3.0}, - {0.5, -0.5, 0.0}, - {1.5, -0.5, -1.0}}, - { - {-1.5, 0.5, 4.0}, - {-0.5, 0.5, 0.0}, - {0.5, 0.5, 3.0}, - {1.5, 0.5, 4.0}}, - { - {-1.5, 1.5, -2.0}, - {-0.5, 1.5, -2.0}, - {0.5, 1.5, 0.0}, - {1.5, 1.5, -1.0}} -}; - -static void -initlights(void) -{ - GLfloat ambient[] = - {0.2, 0.2, 0.2, 1.0}; - GLfloat position[] = - {0.0, 0.0, 2.0, 1.0}; - GLfloat mat_diffuse[] = - {0.6, 0.6, 0.6, 1.0}; - GLfloat mat_specular[] = - {1.0, 1.0, 1.0, 1.0}; - GLfloat mat_shininess[] = - {50.0}; - - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - - glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); - glLightfv(GL_LIGHT0, GL_POSITION, position); - - glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); - glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); - glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess); -} - -static void -display(void) -{ - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - glPushMatrix(); - glRotatef(85.0, 1.0, 1.0, 1.0); - glEvalMesh2(GL_FILL, 0, 20, 0, 20); - glPopMatrix(); - glFlush(); -} - -static void -myinit(void) -{ - glClearColor(0.0, 0.0, 0.0, 1.0); - glEnable(GL_DEPTH_TEST); - glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, - 0, 1, 12, 4, &ctrlpoints[0][0][0]); - glEnable(GL_MAP2_VERTEX_3); - glEnable(GL_AUTO_NORMAL); - glEnable(GL_NORMALIZE); - glMapGrid2f(20, 0.0, 1.0, 20, 0.0, 1.0); - initlights(); /* for lighted version only */ -} - -static void -myReshape(int w, int h) -{ - glViewport(0, 0, w, h); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - if (w <= h) - glOrtho(-4.0, 4.0, -4.0 * (GLfloat) h / (GLfloat) w, - 4.0 * (GLfloat) h / (GLfloat) w, -4.0, 4.0); - else - glOrtho(-4.0 * (GLfloat) w / (GLfloat) h, - 4.0 * (GLfloat) w / (GLfloat) h, -4.0, 4.0, -4.0, 4.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); -} - -static void -key(unsigned char k, int x, int y) -{ - switch (k) { - case 27: /* Escape */ - exit(0); - break; - default: - return; - } - glutPostRedisplay(); -} - -int -main(int argc, char **argv) -{ - glutInit(&argc, argv); - glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); - glutCreateWindow(argv[0]); - myinit(); - glutReshapeFunc(myReshape); - glutDisplayFunc(display); - glutKeyboardFunc(key); - glutMainLoop(); - return 0; /* ANSI C requires main to return int. */ -} |