diff options
Diffstat (limited to 'progs/redbook/nurbs.c')
| -rw-r--r-- | progs/redbook/nurbs.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/progs/redbook/nurbs.c b/progs/redbook/nurbs.c deleted file mode 100644 index fe03ce667ed..00000000000 --- a/progs/redbook/nurbs.c +++ /dev/null @@ -1,190 +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 - * Unpublished-- rights reserved under the copyright laws of the - * United States.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. - */ -/* - * nurbs.c - * This program shows a NURBS (Non-uniform rational B-splines) - * surface, shaped like a heart. - */ -#include <stdlib.h> -#include <GL/glut.h> - -#define S_NUMPOINTS 13 -#define S_ORDER 3 -#define S_NUMKNOTS (S_NUMPOINTS + S_ORDER) -#define T_NUMPOINTS 3 -#define T_ORDER 3 -#define T_NUMKNOTS (T_NUMPOINTS + T_ORDER) -#define SQRT2 1.41421356237309504880 - -/* initialized local data */ - -GLfloat sknots[S_NUMKNOTS] = - {-1.0, -1.0, -1.0, 0.0, 1.0, 2.0, 3.0, 4.0, - 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 9.0, 9.0}; -GLfloat tknots[T_NUMKNOTS] = {1.0, 1.0, 1.0, 2.0, 2.0, 2.0}; - -GLfloat ctlpoints[S_NUMPOINTS][T_NUMPOINTS][4] = { -{ {4.,2.,2.,1.},{4.,1.6,2.5,1.},{4.,2.,3.0,1.} }, -{ {5.,4.,2.,1.},{5.,4.,2.5,1.},{5.,4.,3.0,1.} }, -{ {6.,5.,2.,1.},{6.,5.,2.5,1.},{6.,5.,3.0,1.} }, -{ {SQRT2*6.,SQRT2*6.,SQRT2*2.,SQRT2}, - {SQRT2*6.,SQRT2*6.,SQRT2*2.5,SQRT2}, - {SQRT2*6.,SQRT2*6.,SQRT2*3.0,SQRT2} }, -{ {5.2,6.7,2.,1.},{5.2,6.7,2.5,1.},{5.2,6.7,3.0,1.} }, -{ {SQRT2*4.,SQRT2*6.,SQRT2*2.,SQRT2}, - {SQRT2*4.,SQRT2*6.,SQRT2*2.5,SQRT2}, - {SQRT2*4.,SQRT2*6.,SQRT2*3.0,SQRT2} }, -{ {4.,5.2,2.,1.},{4.,4.6,2.5,1.},{4.,5.2,3.0,1.} }, -{ {SQRT2*4.,SQRT2*6.,SQRT2*2.,SQRT2}, - {SQRT2*4.,SQRT2*6.,SQRT2*2.5,SQRT2}, - {SQRT2*4.,SQRT2*6.,SQRT2*3.0,SQRT2} }, -{ {2.8,6.7,2.,1.},{2.8,6.7,2.5,1.},{2.8,6.7,3.0,1.} }, -{ {SQRT2*2.,SQRT2*6.,SQRT2*2.,SQRT2}, - {SQRT2*2.,SQRT2*6.,SQRT2*2.5,SQRT2}, - {SQRT2*2.,SQRT2*6.,SQRT2*3.0,SQRT2} }, -{ {2.,5.,2.,1.},{2.,5.,2.5,1.},{2.,5.,3.0,1.} }, -{ {3.,4.,2.,1.},{3.,4.,2.5,1.},{3.,4.,3.0,1.} }, -{ {4.,2.,2.,1.},{4.,1.6,2.5,1.},{4.,2.,3.0,1.} } -}; - -GLUnurbsObj *theNurb; - -/* Initialize material property, light source, lighting model, - * and depth buffer. - */ -static void myinit(void) -{ - GLfloat mat_ambient[] = { 1.0, 1.0, 1.0, 1.0 }; - GLfloat mat_diffuse[] = { 1.0, 0.2, 1.0, 1.0 }; - GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 }; - GLfloat mat_shininess[] = { 50.0 }; - - GLfloat light0_position[] = { 1.0, 0.1, 1.0, 0.0 }; - GLfloat light1_position[] = { -1.0, 0.1, 1.0, 0.0 }; - - GLfloat lmodel_ambient[] = { 0.3, 0.3, 0.3, 1.0 }; - - glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient); - glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); - glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); - glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess); - glLightfv(GL_LIGHT0, GL_POSITION, light0_position); - glLightfv(GL_LIGHT1, GL_POSITION, light1_position); - glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); - - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - glEnable(GL_LIGHT1); - glDepthFunc(GL_LESS); - glEnable(GL_DEPTH_TEST); - glEnable(GL_AUTO_NORMAL); - - theNurb = gluNewNurbsRenderer(); - - gluNurbsProperty(theNurb, GLU_SAMPLING_TOLERANCE, 25.0); - gluNurbsProperty(theNurb, GLU_DISPLAY_MODE, GLU_FILL); -} - -static void display(void) -{ - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - glPushMatrix(); - glTranslatef (4., 4.5, 2.5); - glRotatef (220.0, 1., 0., 0.); - glRotatef (115.0, 0., 1., 0.); - glTranslatef (-4., -4.5, -2.5); - - gluBeginSurface(theNurb); - gluNurbsSurface(theNurb, - S_NUMKNOTS, sknots, - T_NUMKNOTS, tknots, - 4 * T_NUMPOINTS, - 4, - &ctlpoints[0][0][0], - S_ORDER, T_ORDER, - GL_MAP2_VERTEX_4); - gluEndSurface(theNurb); - - glPopMatrix(); - glFlush(); -} - -static void myReshape(int w, int h) -{ - glViewport(0, 0, w, h); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glFrustum(-1.0, 1.0, -1.5, 0.5, 0.8, 10.0); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - gluLookAt(7.0,4.5,4.0, 4.5,4.5,2.0, 6.0,-3.0,2.0); -} - -static void -key(unsigned char k, int x, int y) -{ - switch (k) { - case 27: /* Escape */ - exit(0); - break; - default: - return; - } - glutPostRedisplay(); -} - -/* Main Loop - * Open window with initial window size, title bar, - * RGBA display mode, and handle input events. - */ -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. */ -} |