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Diffstat (limited to 'progs/samples/fog.c')
-rw-r--r-- | progs/samples/fog.c | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/progs/samples/fog.c b/progs/samples/fog.c deleted file mode 100644 index 3f3ffdbcc7..0000000000 --- a/progs/samples/fog.c +++ /dev/null @@ -1,311 +0,0 @@ -/* - * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the name of - * Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "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 BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <GL/glut.h> - -GLenum rgb, doubleBuffer; - -#include "tkmap.c" - -double plane[4] = { - 1.0, 0.0, -1.0, 0.0 -}; -float rotX = 5.0, rotY = -5.0, zTranslate = -65.0; -float fogDensity = 0.02; -GLint cubeList = 1; - -float scp[18][3] = { - { - 1.000000, 0.000000, 0.000000 - }, - { - 1.000000, 0.000000, 5.000000 - }, - { - 0.707107, 0.707107, 0.000000 - }, - { - 0.707107, 0.707107, 5.000000 - }, - { - 0.000000, 1.000000, 0.000000 - }, - { - 0.000000, 1.000000, 5.000000 - }, - { - -0.707107, 0.707107, 0.000000 - }, - { - -0.707107, 0.707107, 5.000000 - }, - { - -1.000000, 0.000000, 0.000000 - }, - { - -1.000000, 0.000000, 5.000000 - }, - { - -0.707107, -0.707107, 0.000000 - }, - { - -0.707107, -0.707107, 5.000000 - }, - { - 0.000000, -1.000000, 0.000000 - }, - { - 0.000000, -1.000000, 5.000000 - }, - { - 0.707107, -0.707107, 0.000000 - }, - { - 0.707107, -0.707107, 5.000000 - }, - { - 1.000000, 0.000000, 0.000000 - }, - { - 1.000000, 0.000000, 5.000000 - }, -}; - - -static void Build_lists(void) -{ - - glNewList(cubeList, GL_COMPILE); - glBegin(GL_TRIANGLE_STRIP); - glNormal3fv(scp[0]); glVertex3fv(scp[0]); - glNormal3fv(scp[0]); glVertex3fv(scp[1]); - glNormal3fv(scp[2]); glVertex3fv(scp[2]); - glNormal3fv(scp[2]); glVertex3fv(scp[3]); - glNormal3fv(scp[4]); glVertex3fv(scp[4]); - glNormal3fv(scp[4]); glVertex3fv(scp[5]); - glNormal3fv(scp[6]); glVertex3fv(scp[6]); - glNormal3fv(scp[6]); glVertex3fv(scp[7]); - glNormal3fv(scp[8]); glVertex3fv(scp[8]); - glNormal3fv(scp[8]); glVertex3fv(scp[9]); - glNormal3fv(scp[10]); glVertex3fv(scp[10]); - glNormal3fv(scp[10]); glVertex3fv(scp[11]); - glNormal3fv(scp[12]); glVertex3fv(scp[12]); - glNormal3fv(scp[12]); glVertex3fv(scp[13]); - glNormal3fv(scp[14]); glVertex3fv(scp[14]); - glNormal3fv(scp[14]); glVertex3fv(scp[15]); - glNormal3fv(scp[16]); glVertex3fv(scp[16]); - glNormal3fv(scp[16]); glVertex3fv(scp[17]); - glEnd(); - glEndList(); -} - -static void Init(void) -{ - static float ambient[] = {0.1, 0.1, 0.1, 1.0}; - static float diffuse[] = {1.0, 1.0, 1.0, 1.0}; - static float position[] = {90.0, 90.0, 0.0, 0.0}; - static float front_mat_shininess[] = {30.0}; - static float front_mat_specular[] = {0.0, 0.0, 0.0, 1.0}; - static float front_mat_diffuse[] = {0.0, 1.0, 0.0, 1.0}; - static float back_mat_shininess[] = {50.0}; - static float back_mat_specular[] = {0.0, 0.0, 1.0, 1.0}; - static float back_mat_diffuse[] = {1.0, 0.0, 0.0, 1.0}; - static float lmodel_ambient[] = {0.0, 0.0, 0.0, 1.0}; - static float fog_color[] = {0.8, 0.8, 0.8, 1.0}; - - glFrontFace(GL_CW); - - glEnable(GL_DEPTH_TEST); - - 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); - glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - - glMaterialfv(GL_FRONT, GL_SHININESS, front_mat_shininess); - glMaterialfv(GL_FRONT, GL_SPECULAR, front_mat_specular); - glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse); - glMaterialfv(GL_BACK, GL_SHININESS, back_mat_shininess); - glMaterialfv(GL_BACK, GL_SPECULAR, back_mat_specular); - glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse); - - glEnable(GL_FOG); - glFogi(GL_FOG_MODE, GL_EXP); - glFogf(GL_FOG_DENSITY, fogDensity); - if (rgb) { - glFogfv(GL_FOG_COLOR, fog_color); - glClearColor(0.8, 0.8, 0.8, 1.0); - } else { - glFogi(GL_FOG_INDEX, 1<<5); - SetFogRamp(5, 3); - glClearIndex(128); - } - - Build_lists(); -} - -static void Reshape(int width, int height) -{ - - glViewport(0, 0, (GLint)width, (GLint)height); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluPerspective(45.0, 1.0, 1.0, 200.0); - glMatrixMode(GL_MODELVIEW); -} - -static void Key2(int key, int x, int y) -{ - - switch (key) { - case GLUT_KEY_UP: - rotX -= 5; - break; - case GLUT_KEY_DOWN: - rotX += 5; - break; - case GLUT_KEY_LEFT: - rotY -= 5; - break; - case GLUT_KEY_RIGHT: - rotY += 5; - break; - default: - return; - } - - glutPostRedisplay(); -} - -static void Key(unsigned char key, int x, int y) -{ - - switch (key) { - case 27: - exit(1); - case 'D': - if (rgb) { - fogDensity *= 1.10; - glFogf(GL_FOG_DENSITY, fogDensity); - } - break; - case 'd': - if (rgb) { - fogDensity /= 1.10; - glFogf(GL_FOG_DENSITY, fogDensity); - } - break; - default: - return; - } - - glutPostRedisplay(); -} - -static void Draw(void) -{ - - glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); - - glPushMatrix(); - - glTranslatef(0, 0, zTranslate); - glRotatef(rotY, 0,1,0); - glRotatef(rotX, 1,0,0); - glScalef(1.0, 1.0, 10.0); - - glCallList(cubeList); - - glPopMatrix(); - - glFlush(); - - if (doubleBuffer) { - glutSwapBuffers(); - } -} - -static GLenum Args(int argc, char **argv) -{ - GLint i; - - rgb = GL_TRUE; - doubleBuffer = GL_TRUE; - - for (i = 1; i < argc; i++) { - if (strcmp(argv[i], "-ci") == 0) { - rgb = GL_FALSE; - } else if (strcmp(argv[i], "-rgb") == 0) { - rgb = GL_TRUE; - } else if (strcmp(argv[i], "-sb") == 0) { - doubleBuffer = GL_FALSE; - } else if (strcmp(argv[i], "-db") == 0) { - doubleBuffer = GL_TRUE; - } else { - printf("%s (Bad option).\n", argv[i]); - return GL_FALSE; - } - } - return GL_TRUE; -} - -int main(int argc, char **argv) -{ - GLenum type; - - glutInit(&argc, argv); - - if (Args(argc, argv) == GL_FALSE) { - exit(1); - } - - glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300); - - type = GLUT_DEPTH; - type |= (rgb) ? GLUT_RGB : GLUT_INDEX; - type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; - glutInitDisplayMode(type); - - if (glutCreateWindow("Fog Test") == GL_FALSE) { - exit(1); - } - - InitMap(); - - Init(); - - glutReshapeFunc(Reshape); - glutKeyboardFunc(Key); - glutSpecialFunc(Key2); - glutDisplayFunc(Draw); - glutMainLoop(); - return 0; -} |