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Diffstat (limited to 'progs/redbook/depthcue.c')
-rw-r--r-- | progs/redbook/depthcue.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/progs/redbook/depthcue.c b/progs/redbook/depthcue.c deleted file mode 100644 index d4b604baf1..0000000000 --- a/progs/redbook/depthcue.c +++ /dev/null @@ -1,115 +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 - * Unpublished-- rights reserved under the copyright laws of the - * United States.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. - */ -/* - * depthcue.c - * This program draws a wireframe model, which uses - * intensity (brightness) to give clues to distance. - * Fog is used to achieve this effect. - */ -#include <stdlib.h> -#include <GL/glut.h> - -/* Initialize linear fog for depth cueing. - */ -static void myinit(void) -{ - GLfloat fogColor[4] = {0.0, 0.0, 0.0, 1.0}; - - glEnable(GL_FOG); - glFogi (GL_FOG_MODE, GL_LINEAR); - glHint (GL_FOG_HINT, GL_NICEST); /* per pixel */ - glFogf (GL_FOG_START, 3.0); - glFogf (GL_FOG_END, 5.0); - glFogfv (GL_FOG_COLOR, fogColor); - glClearColor(0.0, 0.0, 0.0, 1.0); - - glDepthFunc(GL_LESS); - glEnable(GL_DEPTH_TEST); - glShadeModel(GL_FLAT); -} - -/* display() draws an icosahedron. - */ -static void display(void) -{ - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - glColor3f (1.0, 1.0, 1.0); - glutWireIcosahedron(); - glFlush(); -} - -static void myReshape(int w, int h) -{ - glViewport(0, 0, w, h); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluPerspective (45.0, (GLfloat) w/(GLfloat) h, 3.0, 5.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity (); - glTranslatef (0.0, 0.0, -4.0); /* move object into view */ -} - -static void -key(unsigned char k, int x, int y) -{ - switch (k) { - case 27: /* Escape */ - exit(0); - break; - default: - return; - } - glutPostRedisplay(); -} - -/* Main Loop - */ -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. */ -} |