diff options
Diffstat (limited to 'progs/redbook/material.c')
| -rw-r--r-- | progs/redbook/material.c | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/progs/redbook/material.c b/progs/redbook/material.c index f8d6a918f4..f9a4fc5928 100644 --- a/progs/redbook/material.c +++ b/progs/redbook/material.c @@ -3,14 +3,14 @@ /* * (c) Copyright 1993, Silicon Graphics, Inc. - * ALL RIGHTS RESERVED - * Permission to use, copy, modify, and distribute this software for + * 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 + * 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. + * 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, @@ -24,8 +24,8 @@ * 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 + * + * 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 @@ -46,7 +46,7 @@ #include <stdlib.h> #include <GL/glut.h> -/* Initialize z-buffer, projection matrix, light source, +/* Initialize z-buffer, projection matrix, light source, * and lighting model. Do not specify a material property here. */ void myinit(void) @@ -72,7 +72,7 @@ void myinit(void) glClearColor(0.0, 0.1, 0.1, 0.0); } -/* Draw twelve spheres in 3 rows with 4 columns. +/* Draw twelve spheres in 3 rows with 4 columns. * The spheres in the first row have materials with no ambient reflection. * The second row has materials with significant ambient reflection. * The third row has materials with colored ambient reflection. @@ -102,7 +102,7 @@ void display(void) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); /* draw sphere in first row, first column - * diffuse reflection only; no ambient or specular + * diffuse reflection only; no ambient or specular */ glPushMatrix(); glTranslatef (-3.75, 3.0, 0.0); @@ -154,7 +154,7 @@ void display(void) glPopMatrix(); /* draw sphere in second row, first column - * ambient and diffuse reflection; no specular + * ambient and diffuse reflection; no specular */ glPushMatrix(); glTranslatef (-3.75, 0.0, 0.0); @@ -206,7 +206,7 @@ void display(void) glPopMatrix(); /* draw sphere in third row, first column - * colored ambient and diffuse reflection; no specular + * colored ambient and diffuse reflection; no specular */ glPushMatrix(); glTranslatef (-3.75, -3.0, 0.0); @@ -266,16 +266,29 @@ void myReshape(int w, int h) glMatrixMode(GL_PROJECTION); glLoadIdentity(); if (w <= (h * 2)) - glOrtho (-6.0, 6.0, -3.0*((GLfloat)h*2)/(GLfloat)w, + glOrtho (-6.0, 6.0, -3.0*((GLfloat)h*2)/(GLfloat)w, 3.0*((GLfloat)h*2)/(GLfloat)w, -10.0, 10.0); else - glOrtho (-6.0*(GLfloat)w/((GLfloat)h*2), + glOrtho (-6.0*(GLfloat)w/((GLfloat)h*2), 6.0*(GLfloat)w/((GLfloat)h*2), -3.0, 3.0, -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, + * Open window with initial window size, title bar, * RGBA display mode, and handle input events. */ int main(int argc, char** argv) @@ -287,7 +300,7 @@ int main(int argc, char** argv) myinit(); glutReshapeFunc(myReshape); glutDisplayFunc(display); + glutKeyboardFunc(key); glutMainLoop(); return 0; /* ANSI C requires main to return int. */ } - |