1 files changed, 220 insertions, 0 deletions
diff --git a/progs/redbook/teapots.c b/progs/redbook/teapots.c
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+
+/* 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+ * Unpublished-- rights reserved under the copyright laws of the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.
+ */
+/**
+ *  teapots.c
+ *  This program demonstrates lots of material properties.
+ *  A single light source illuminates the objects.
+ */
+#include <stdlib.h>
+#include <GL/glut.h>
+
+/*
+ * Initialize depth buffer, projection matrix, light source, and lighting
+ * model.  Do not specify a material property here.
+ */
+void
+myinit(void)
+{
+  GLfloat ambient[] =
+  {0.0, 0.0, 0.0, 1.0};
+  GLfloat diffuse[] =
+  {1.0, 1.0, 1.0, 1.0};
+  GLfloat position[] =
+  {0.0, 3.0, 3.0, 0.0};
+
+  GLfloat lmodel_ambient[] =
+  {0.2, 0.2, 0.2, 1.0};
+  GLfloat local_view[] =
+  {0.0};
+
+  glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
+  glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
+  glLightfv(GL_LIGHT0, GL_POSITION, position);
+  glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
+  glLightModelfv(GL_LIGHT_MODEL_LOCAL_VIEWER, local_view);
+
+  glFrontFace(GL_CW);
+  glEnable(GL_LIGHTING);
+  glEnable(GL_LIGHT0);
+  glEnable(GL_AUTO_NORMAL);
+  glEnable(GL_NORMALIZE);
+  glEnable(GL_DEPTH_TEST);
+  glDepthFunc(GL_LESS);
+}
+
+/*
+ * Move object into position.  Use 3rd through 12th parameters to specify the
+ * material property.  Draw a teapot.
+ */
+void
+renderTeapot(GLfloat x, GLfloat y,
+  GLfloat ambr, GLfloat ambg, GLfloat ambb,
+  GLfloat difr, GLfloat difg, GLfloat difb,
+  GLfloat specr, GLfloat specg, GLfloat specb, GLfloat shine)
+{
+  float mat[4];
+
+  glPushMatrix();
+  glTranslatef(x, y, 0.0);
+  mat[0] = ambr;
+  mat[1] = ambg;
+  mat[2] = ambb;
+  mat[3] = 1.0;
+  glMaterialfv(GL_FRONT, GL_AMBIENT, mat);
+  mat[0] = difr;
+  mat[1] = difg;
+  mat[2] = difb;
+  glMaterialfv(GL_FRONT, GL_DIFFUSE, mat);
+  mat[0] = specr;
+  mat[1] = specg;
+  mat[2] = specb;
+  glMaterialfv(GL_FRONT, GL_SPECULAR, mat);
+  glMaterialf(GL_FRONT, GL_SHININESS, shine * 128.0);
+  glutSolidTeapot(1.0);
+  glPopMatrix();
+}
+
+/**
+ *  First column:  emerald, jade, obsidian, pearl, ruby, turquoise
+ *  2nd column:  brass, bronze, chrome, copper, gold, silver
+ *  3rd column:  black, cyan, green, red, white, yellow plastic
+ *  4th column:  black, cyan, green, red, white, yellow rubber
+ */
+void
+display(void)
+{
+  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+  renderTeapot(2.0, 17.0, 0.0215, 0.1745, 0.0215,
+    0.07568, 0.61424, 0.07568, 0.633, 0.727811, 0.633, 0.6);
+  renderTeapot(2.0, 14.0, 0.135, 0.2225, 0.1575,
+    0.54, 0.89, 0.63, 0.316228, 0.316228, 0.316228, 0.1);
+  renderTeapot(2.0, 11.0, 0.05375, 0.05, 0.06625,
+    0.18275, 0.17, 0.22525, 0.332741, 0.328634, 0.346435, 0.3);
+  renderTeapot(2.0, 8.0, 0.25, 0.20725, 0.20725,
+    1, 0.829, 0.829, 0.296648, 0.296648, 0.296648, 0.088);
+  renderTeapot(2.0, 5.0, 0.1745, 0.01175, 0.01175,
+    0.61424, 0.04136, 0.04136, 0.727811, 0.626959, 0.626959, 0.6);
+  renderTeapot(2.0, 2.0, 0.1, 0.18725, 0.1745,
+    0.396, 0.74151, 0.69102, 0.297254, 0.30829, 0.306678, 0.1);
+  renderTeapot(6.0, 17.0, 0.329412, 0.223529, 0.027451,
+    0.780392, 0.568627, 0.113725, 0.992157, 0.941176, 0.807843,
+    0.21794872);
+  renderTeapot(6.0, 14.0, 0.2125, 0.1275, 0.054,
+    0.714, 0.4284, 0.18144, 0.393548, 0.271906, 0.166721, 0.2);
+  renderTeapot(6.0, 11.0, 0.25, 0.25, 0.25,
+    0.4, 0.4, 0.4, 0.774597, 0.774597, 0.774597, 0.6);
+  renderTeapot(6.0, 8.0, 0.19125, 0.0735, 0.0225,
+    0.7038, 0.27048, 0.0828, 0.256777, 0.137622, 0.086014, 0.1);
+  renderTeapot(6.0, 5.0, 0.24725, 0.1995, 0.0745,
+    0.75164, 0.60648, 0.22648, 0.628281, 0.555802, 0.366065, 0.4);
+  renderTeapot(6.0, 2.0, 0.19225, 0.19225, 0.19225,
+    0.50754, 0.50754, 0.50754, 0.508273, 0.508273, 0.508273, 0.4);
+  renderTeapot(10.0, 17.0, 0.0, 0.0, 0.0, 0.01, 0.01, 0.01,
+    0.50, 0.50, 0.50, .25);
+  renderTeapot(10.0, 14.0, 0.0, 0.1, 0.06, 0.0, 0.50980392, 0.50980392,
+    0.50196078, 0.50196078, 0.50196078, .25);
+  renderTeapot(10.0, 11.0, 0.0, 0.0, 0.0,
+    0.1, 0.35, 0.1, 0.45, 0.55, 0.45, .25);
+  renderTeapot(10.0, 8.0, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0,
+    0.7, 0.6, 0.6, .25);
+  renderTeapot(10.0, 5.0, 0.0, 0.0, 0.0, 0.55, 0.55, 0.55,
+    0.70, 0.70, 0.70, .25);
+  renderTeapot(10.0, 2.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.0,
+    0.60, 0.60, 0.50, .25);
+  renderTeapot(14.0, 17.0, 0.02, 0.02, 0.02, 0.01, 0.01, 0.01,
+    0.4, 0.4, 0.4, .078125);
+  renderTeapot(14.0, 14.0, 0.0, 0.05, 0.05, 0.4, 0.5, 0.5,
+    0.04, 0.7, 0.7, .078125);
+  renderTeapot(14.0, 11.0, 0.0, 0.05, 0.0, 0.4, 0.5, 0.4,
+    0.04, 0.7, 0.04, .078125);
+  renderTeapot(14.0, 8.0, 0.05, 0.0, 0.0, 0.5, 0.4, 0.4,
+    0.7, 0.04, 0.04, .078125);
+  renderTeapot(14.0, 5.0, 0.05, 0.05, 0.05, 0.5, 0.5, 0.5,
+    0.7, 0.7, 0.7, .078125);
+  renderTeapot(14.0, 2.0, 0.05, 0.05, 0.0, 0.5, 0.5, 0.4,
+    0.7, 0.7, 0.04, .078125);
+  glFlush();
+}
+
+void
+myReshape(int w, int h)
+{
+  glViewport(0, 0, w, h);
+  glMatrixMode(GL_PROJECTION);
+  glLoadIdentity();
+  if (w <= h)
+    glOrtho(0.0, 16.0, 0.0, 18.0 * (GLfloat) h / (GLfloat) w,
+      -10.0, 10.0);
+  else
+    glOrtho(0.0, 16.0 * (GLfloat) w / (GLfloat) h, 0.0, 18.0,
+      -10.0, 10.0);
+  glMatrixMode(GL_MODELVIEW);
+}
+
+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. */
+}