home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Amiga Format CD 52
/
Amiga Format AFCD52 (Issue 136, May 2000).iso
/
-serious-
/
programming
/
other
/
mesa
/
mesa-aux
/
book.aux
/
accum.c
< prev
next >
Wrap
C/C++ Source or Header
|
2000-02-23
|
8KB
|
329 lines
/*
* (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* Unpublished-- rights reserved under the copyright laws of the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.
*/
/*
* accum.c
*/
#include <GL/gl.h>
#include <GL/glu.h>
#include <stdio.h>
#include <stdlib.h>
#include <GL/glaux.h>
GLsizei width, height;
void myinit(void)
{
GLfloat ambient[] =
{0.4, 0.4, 0.4, 1.0};
GLfloat diffuse[] =
{1.0, 1.0, 1.0, 1.0};
GLfloat specular[] =
{1.0, 1.0, 1.0, 1.0};
GLfloat position[] =
{0.0, 2.0, 2.0, 0.0};
GLfloat mat_ambient[] =
{0.2, 0.2, 0.2, 1.0};
GLfloat mat_diffuse[] =
{0.7, 0.7, 0.7, 1.0};
GLfloat mat_specular[] =
{0.9, 0.9, 0.9, 1.0};
GLfloat mat_shininess[] =
{50.0};
GLfloat lmodel_ambient[] =
{0.2, 0.2, 0.2, 1.0};
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
glLightfv(GL_LIGHT0, GL_POSITION, position);
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);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_AUTO_NORMAL);
glEnable(GL_NORMALIZE);
glEnable(GL_CULL_FACE);
glCullFace(GL_FRONT);
glClearAccum(0.0, 0.0, 0.0, 0.0);
}
#define ACSIZE 16
GLfloat dx[ACSIZE], dy[ACSIZE];
GLfloat jitter3[3][2] =
{
{0.5, 0.5},
{1.35899e-05, 0.230369},
{0.000189185, 0.766878},
};
GLfloat jitter11[11][2] =
{
{0.5, 0.5},
{0.406537, 0.135858},
{0.860325, 0.968558},
{0.680141, 0.232877},
{0.775694, 0.584871},
{0.963354, 0.309056},
{0.593493, 0.864072},
{0.224334, 0.415055},
{0.0366643, 0.690884},
{0.139685, 0.0313988},
{0.319861, 0.767097},
};
GLfloat jitter16[16][2] =
{
{0.4375, 0.4375},
{0.1875, 0.5625},
{0.9375, 1.1875},
{0.4375, 0.9375 - 1},
{0.6875, 0.5625},
{0.1875, 0.0625},
{0.6875, 0.3125},
{0.1875, 0.3125},
{0.4375, 0.1875},
{0.9375 - 1, 0.4375},
{0.6875, 0.8125},
{0.4375, 0.6875},
{0.6875, 0.0625},
{0.9375, 0.9375},
{1.1875, 0.8125},
{0.9375, 0.6875},
};
GLfloat jitter29[29][2] =
{
{0.5, 0.5},
{0.498126, 0.141363},
{0.217276, 0.651732},
{0.439503, 0.954859},
{0.734171, 0.836294},
{0.912454, 0.79952},
{0.406153, 0.671156},
{0.0163892, 0.631994},
{0.298064, 0.843476},
{0.312025, 0.0990405},
{0.98135, 0.965697},
{0.841999, 0.272378},
{0.559348, 0.32727},
{0.809331, 0.638901},
{0.632583, 0.994471},
{0.00588314, 0.146344},
{0.713365, 0.437896},
{0.185173, 0.246584},
{0.901735, 0.474544},
{0.366423, 0.296698},
{0.687032, 0.188184},
{0.313256, 0.472999},
{0.543195, 0.800044},
{0.629329, 0.631599},
{0.818263, 0.0439354},
{0.163978, 0.00621497},
{0.109533, 0.812811},
{0.131325, 0.471624},
{0.0196755, 0.331813},
};
GLfloat jitter90[90][2] =
{
{0.5, 0.5},
{0.784289, 0.417355},
{0.608691, 0.678948},
{0.546538, 0.976002},
{0.972245, 0.270498},
{0.765121, 0.189392},
{0.513193, 0.743827},
{0.123709, 0.874866},
{0.991334, 0.745136},
{0.56342, 0.0925047},
{0.662226, 0.143317},
{0.444563, 0.928535},
{0.248017, 0.981655},
{0.100115, 0.771923},
{0.593937, 0.559383},
{0.392095, 0.225932},
{0.428776, 0.812094},
{0.510615, 0.633584},
{0.836431, 0.00343328},
{0.494037, 0.391771},
{0.617448, 0.792324},
{0.688599, 0.48914},
{0.530421, 0.859206},
{0.0742278, 0.665344},
{0.979388, 0.626835},
{0.183806, 0.479216},
{0.151222, 0.0803998},
{0.476489, 0.157863},
{0.792675, 0.653531},
{0.0990416, 0.267284},
{0.776667, 0.303894},
{0.312904, 0.296018},
{0.288777, 0.691008},
{0.460097, 0.0436075},
{0.594323, 0.440751},
{0.876296, 0.472043},
{0.0442623, 0.0693901},
{0.355476, 0.00442787},
{0.391763, 0.361327},
{0.406994, 0.696053},
{0.708393, 0.724992},
{0.925807, 0.933103},
{0.850618, 0.11774},
{0.867486, 0.233677},
{0.208805, 0.285484},
{0.572129, 0.211505},
{0.172931, 0.180455},
{0.327574, 0.598031},
{0.685187, 0.372379},
{0.23375, 0.878555},
{0.960657, 0.409561},
{0.371005, 0.113866},
{0.29471, 0.496941},
{0.748611, 0.0735321},
{0.878643, 0.34504},
{0.210987, 0.778228},
{0.692961, 0.606194},
{0.82152, 0.8893},
{0.0982095, 0.563104},
{0.214514, 0.581197},
{0.734262, 0.956545},
{0.881377, 0.583548},
{0.0560485, 0.174277},
{0.0729515, 0.458003},
{0.719604, 0.840564},
{0.325388, 0.7883},
{0.26136, 0.0848927},
{0.393754, 0.467505},
{0.425361, 0.577672},
{0.648594, 0.0248658},
{0.983843, 0.521048},
{0.272936, 0.395127},
{0.177695, 0.675733},
{0.89175, 0.700901},
{0.632301, 0.908259},
{0.782859, 0.53611},
{0.0141421, 0.855548},
{0.0437116, 0.351866},
{0.939604, 0.0450863},
{0.0320883, 0.962943},
{0.341155, 0.895317},
{0.952087, 0.158387},
{0.908415, 0.820054},
{0.481435, 0.281195},
{0.675525, 0.25699},
{0.585273, 0.324454},
{0.156488, 0.376783},
{0.140434, 0.977416},
{0.808155, 0.77305},
{0.282973, 0.188937},
};
void loaddxdy(void)
{
long i;
for (i = 0; i < ACSIZE; i++) {
dx[i] = jitter16[i][0] * 10 / width;
dy[i] = jitter16[i][1] * 10 / height;
}
}
void display(void)
{
int i;
glClear(GL_ACCUM_BUFFER_BIT);
loaddxdy();
for (i = 0; i < (ACSIZE); i++) {
printf("Pass %d\n", i);
glPushMatrix();
glTranslatef(dx[i], dy[i], 0.0);
glRotatef(45.0, 1.0, 1.0, 1.0);
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
auxSolidTeapot(1.0);
glPopMatrix();
glAccum(GL_ACCUM, 1.0 / (ACSIZE));
}
printf("final job\n");
glAccum(GL_RETURN, 1.0);
printf("done\n");
glFlush();
}
void myReshape(int w, int h)
{
width = w;
height = h;
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (w <= h)
glOrtho(-3.0, 3.0, -3.0 * (GLfloat) h / (GLfloat) w,
3.0 * (GLfloat) h / (GLfloat) w, -15.0, 15.0);
else
glOrtho(-3.0 * (GLfloat) w / (GLfloat) h,
3.0 * (GLfloat) w / (GLfloat) h, -3.0, 3.0, -15.0, 15.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
int main(int argc, char **argv)
{
auxInitDisplayMode(AUX_SINGLE | AUX_RGB
| AUX_ACCUM | AUX_DEPTH);
auxInitPosition(0, 0, 300, 300);
if (!auxInitWindow(argv[0]))
auxQuit();
myinit();
auxReshapeFunc(myReshape);
auxMainLoop(display);
return 0;
}