| 1 |
#ifndef lint
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| 2 |
static const char RCSid[] = "$Id: mkillum.c,v 2.29 2007/09/14 21:29:08 greg Exp $";
|
| 3 |
#endif
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| 4 |
/*
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| 5 |
* Make illum sources for optimizing rendering process
|
| 6 |
*/
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| 7 |
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| 8 |
#include <signal.h>
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| 9 |
#include <ctype.h>
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| 10 |
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| 11 |
#include "platform.h"
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| 12 |
#include "mkillum.h"
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| 13 |
#include "random.h"
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| 14 |
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| 15 |
/* default parameters */
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| 16 |
#define SAMPDENS 48 /* points per projected steradian */
|
| 17 |
#define NSAMPS 32 /* samples per point */
|
| 18 |
#define DFLMAT "illum_mat" /* material name */
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| 19 |
#define DFLDAT "illum" /* data file name */
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| 20 |
/* selection options */
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| 21 |
#define S_NONE 0 /* select none */
|
| 22 |
#define S_ELEM 1 /* select specified element */
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| 23 |
#define S_COMPL 2 /* select all but element */
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| 24 |
#define S_ALL 3 /* select all */
|
| 25 |
|
| 26 |
struct illum_args thisillum = { /* our illum and default values */
|
| 27 |
0,
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| 28 |
UDzpos,
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| 29 |
DFLMAT,
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| 30 |
DFLDAT,
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| 31 |
0,
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| 32 |
VOIDID,
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| 33 |
SAMPDENS,
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NSAMPS,
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NULL,
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0.,
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};
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| 38 |
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| 39 |
char matcheck[MAXSTR]; /* current material to include or exclude */
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| 40 |
int matselect = S_ALL; /* selection criterion */
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| 41 |
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| 42 |
int gargc; /* global argc */
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| 43 |
char **gargv; /* global argv */
|
| 44 |
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| 45 |
int doneheader = 0; /* printed header yet? */
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| 46 |
#define checkhead() if (!doneheader++) printhead(gargc,gargv)
|
| 47 |
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| 48 |
int warnings = 1; /* print warnings? */
|
| 49 |
|
| 50 |
void init(char *octnm, int np);
|
| 51 |
void filter(register FILE *infp, char *name);
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| 52 |
void xoptions(char *s, char *nm);
|
| 53 |
void printopts(void);
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| 54 |
void printhead(register int ac, register char **av);
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| 55 |
void xobject(FILE *fp, char *nm);
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| 56 |
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| 57 |
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| 58 |
int
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main( /* compute illum distributions using rtrace */
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| 60 |
int argc,
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| 61 |
char *argv[]
|
| 62 |
)
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| 63 |
{
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| 64 |
int nprocs = 1;
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| 65 |
FILE *fp;
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| 66 |
int rval;
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| 67 |
register int i;
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| 68 |
/* set global arguments */
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| 69 |
gargv = argv;
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progname = gargv[0];
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/* set up rendering defaults */
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dstrsrc = 0.25;
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directrelay = 3;
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| 74 |
directvis = 0;
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ambounce = 2;
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/* get options from command line */
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for (i = 1; i < argc; i++) {
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| 78 |
while ((rval = expandarg(&argc, &argv, i)) > 0)
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;
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| 80 |
if (rval < 0) {
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| 81 |
sprintf(errmsg, "cannot expand '%s'", argv[i]);
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| 82 |
error(SYSTEM, errmsg);
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| 83 |
}
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| 84 |
if (argv[i][0] != '-')
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break;
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| 86 |
if (!strcmp(argv[i], "-w")) {
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| 87 |
warnings = 0;
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| 88 |
continue;
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| 89 |
}
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| 90 |
if (!strcmp(argv[i], "-n")) {
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| 91 |
nprocs = atoi(argv[++i]);
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| 92 |
if (nprocs <= 0)
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| 93 |
error(USER, "illegal number of processes");
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| 94 |
continue;
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| 95 |
}
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| 96 |
if (!strcmp(argv[i], "-defaults")) {
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| 97 |
printopts();
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| 98 |
print_rdefaults();
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| 99 |
quit(0);
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| 100 |
}
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| 101 |
rval = getrenderopt(argc-i, argv+i);
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| 102 |
if (rval < 0) {
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| 103 |
sprintf(errmsg, "bad render option at '%s'", argv[i]);
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| 104 |
error(USER, errmsg);
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}
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| 106 |
i += rval;
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| 107 |
}
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gargc = ++i;
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| 109 |
/* add "mandatory" render options */
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do_irrad = 0;
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if (gargc > argc || argv[gargc-1][0] == '-')
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| 112 |
error(USER, "missing octree argument");
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/* else initialize and run our calculation */
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init(argv[gargc-1], nprocs);
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| 115 |
if (gargc < argc) {
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| 116 |
if (gargc == argc-1 || argv[gargc][0] != '<' || argv[gargc][1])
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| 117 |
error(USER, "use '< file1 file2 ..' for multiple inputs");
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| 118 |
for (i = gargc+1; i < argc; i++) {
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| 119 |
if ((fp = fopen(argv[i], "r")) == NULL) {
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| 120 |
sprintf(errmsg,
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"cannot open scene file \"%s\"", argv[i]);
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| 122 |
error(SYSTEM, errmsg);
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}
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filter(fp, argv[i]);
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fclose(fp);
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}
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} else
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filter(stdin, "standard input");
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quit(0);
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return 0; /* pro forma return */
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| 131 |
}
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| 133 |
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void
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init(char *octnm, int np) /* start rendering process(es) */
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| 136 |
{
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/* set up signal handling */
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signal(SIGINT, quit);
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| 139 |
#ifdef SIGHUP
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| 140 |
signal(SIGHUP, quit);
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| 141 |
#endif
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| 142 |
#ifdef SIGTERM
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| 143 |
signal(SIGTERM, quit);
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| 144 |
#endif
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| 145 |
#ifdef SIGPIPE
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| 146 |
signal(SIGPIPE, quit);
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| 147 |
#endif
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/* start rendering process(es) */
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| 149 |
ray_pinit(octnm, np);
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}
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void
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eputs( /* put string to stderr */
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| 155 |
register char *s
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| 156 |
)
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{
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| 158 |
static int midline = 0;
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| 159 |
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| 160 |
if (!*s) return;
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| 161 |
if (!midline) {
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| 162 |
fputs(progname, stderr);
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fputs(": ", stderr);
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}
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| 165 |
fputs(s, stderr);
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midline = s[strlen(s)-1] != '\n';
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}
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| 169 |
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| 170 |
void
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| 171 |
wputs(s) /* print warning if enabled */
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| 172 |
char *s;
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| 173 |
{
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| 174 |
if (warnings)
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| 175 |
eputs(s);
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| 176 |
}
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| 177 |
|
| 178 |
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| 179 |
void
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filter( /* process stream */
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register FILE *infp,
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| 182 |
char *name
|
| 183 |
)
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| 184 |
{
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| 185 |
char buf[512];
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| 186 |
FILE *pfp;
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| 187 |
register int c;
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| 188 |
|
| 189 |
while ((c = getc(infp)) != EOF) {
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| 190 |
if (isspace(c))
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| 191 |
continue;
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| 192 |
if (c == '#') { /* comment/options */
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| 193 |
buf[0] = c;
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| 194 |
fgets(buf+1, sizeof(buf)-1, infp);
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| 195 |
xoptions(buf, name);
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| 196 |
} else if (c == '!') { /* command */
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| 197 |
buf[0] = c;
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| 198 |
fgetline(buf+1, sizeof(buf)-1, infp);
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| 199 |
if ((pfp = popen(buf+1, "r")) == NULL) {
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| 200 |
sprintf(errmsg, "cannot execute \"%s\"", buf);
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| 201 |
error(SYSTEM, errmsg);
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| 202 |
}
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| 203 |
filter(pfp, buf);
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| 204 |
pclose(pfp);
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| 205 |
} else { /* object */
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| 206 |
ungetc(c, infp);
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| 207 |
xobject(infp, name);
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| 208 |
}
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| 209 |
}
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| 210 |
}
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| 211 |
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| 212 |
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| 213 |
void
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xoptions( /* process options in string s */
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| 215 |
char *s,
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| 216 |
char *nm
|
| 217 |
)
|
| 218 |
{
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| 219 |
extern FILE *freopen();
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| 220 |
char buf[64];
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| 221 |
int negax;
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| 222 |
int nerrs = 0;
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| 223 |
register char *cp;
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| 224 |
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| 225 |
if (strncmp(s, "#@mkillum", 9) || !isspace(s[9])) {
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fputs(s, stdout); /* not for us */
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return;
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| 228 |
}
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| 229 |
cp = s+10;
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| 230 |
while (*cp) {
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| 231 |
switch (*cp) {
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| 232 |
case ' ':
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| 233 |
case '\t':
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| 234 |
case '\n':
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| 235 |
case '\r':
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| 236 |
case '\f':
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| 237 |
cp++;
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continue;
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| 239 |
case 'm': /* material name */
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| 240 |
if (*++cp != '=')
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| 241 |
break;
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| 242 |
if (!*++cp || isspace(*cp))
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break;
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| 244 |
atos(thisillum.matname, MAXSTR, cp);
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| 245 |
cp = sskip(cp);
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| 246 |
if (!(thisillum.flags & IL_DATCLB)) {
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| 247 |
strcpy(thisillum.datafile, thisillum.matname);
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| 248 |
thisillum.dfnum = 0;
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| 249 |
}
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| 250 |
continue;
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| 251 |
case 'f': /* data file name */
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| 252 |
if (*++cp != '=')
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break;
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| 254 |
if (!*++cp || isspace(*cp)) {
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| 255 |
strcpy(thisillum.datafile,thisillum.matname);
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| 256 |
thisillum.dfnum = 0;
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| 257 |
thisillum.flags &= ~IL_DATCLB;
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continue;
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| 259 |
}
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| 260 |
atos(thisillum.datafile, MAXSTR, cp);
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cp = sskip(cp);
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| 262 |
thisillum.dfnum = 0;
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| 263 |
thisillum.flags |= IL_DATCLB;
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| 264 |
continue;
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| 265 |
case 'i': /* include material */
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| 266 |
case 'e': /* exclude material */
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| 267 |
if (cp[1] != '=')
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break;
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| 269 |
matselect = (*cp == 'i') ? S_ELEM : S_COMPL;
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| 270 |
cp += 2;
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| 271 |
atos(matcheck, MAXSTR, cp);
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| 272 |
cp = sskip(cp);
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| 273 |
continue;
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| 274 |
case 'a': /* use everything */
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| 275 |
cp = sskip(cp);
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| 276 |
matselect = S_ALL;
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| 277 |
continue;
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| 278 |
case 'n': /* use nothing (passive) */
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| 279 |
cp = sskip(cp);
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| 280 |
matselect = S_NONE;
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| 281 |
continue;
|
| 282 |
case 'c': /* color calculation */
|
| 283 |
if (*++cp != '=')
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| 284 |
break;
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| 285 |
switch (*++cp) {
|
| 286 |
case 'a': /* average */
|
| 287 |
thisillum.flags = (thisillum.flags|IL_COLAVG)
|
| 288 |
& ~IL_COLDST;
|
| 289 |
break;
|
| 290 |
case 'd': /* distribution */
|
| 291 |
thisillum.flags |= (IL_COLDST|IL_COLAVG);
|
| 292 |
break;
|
| 293 |
case 'n': /* none */
|
| 294 |
thisillum.flags &= ~(IL_COLAVG|IL_COLDST);
|
| 295 |
break;
|
| 296 |
default:
|
| 297 |
goto opterr;
|
| 298 |
}
|
| 299 |
cp = sskip(cp);
|
| 300 |
continue;
|
| 301 |
case 'd': /* sample density / BSDF data */
|
| 302 |
if (*++cp != '=')
|
| 303 |
break;
|
| 304 |
if (thisillum.sd != NULL) {
|
| 305 |
free_BSDF(thisillum.sd);
|
| 306 |
thisillum.sd = NULL;
|
| 307 |
}
|
| 308 |
if (!*++cp || isspace(*cp))
|
| 309 |
continue;
|
| 310 |
if (isintd(++cp, " \t\n\r")) {
|
| 311 |
thisillum.sampdens = atoi(cp);
|
| 312 |
} else {
|
| 313 |
atos(buf, sizeof(buf), cp);
|
| 314 |
thisillum.sd = load_BSDF(buf);
|
| 315 |
if (thisillum.sd == NULL)
|
| 316 |
break;
|
| 317 |
}
|
| 318 |
cp = sskip(cp);
|
| 319 |
continue;
|
| 320 |
case 's': /* surface super-samples */
|
| 321 |
if (*++cp != '=')
|
| 322 |
break;
|
| 323 |
if (!isintd(++cp, " \t\n\r"))
|
| 324 |
break;
|
| 325 |
thisillum.nsamps = atoi(cp);
|
| 326 |
cp = sskip(cp);
|
| 327 |
continue;
|
| 328 |
case 'l': /* light sources */
|
| 329 |
cp++;
|
| 330 |
if (*cp == '+')
|
| 331 |
thisillum.flags |= IL_LIGHT;
|
| 332 |
else if (*cp == '-')
|
| 333 |
thisillum.flags &= ~IL_LIGHT;
|
| 334 |
else
|
| 335 |
break;
|
| 336 |
cp++;
|
| 337 |
continue;
|
| 338 |
case 'b': /* brightness */
|
| 339 |
if (*++cp != '=')
|
| 340 |
break;
|
| 341 |
if (!isfltd(++cp, " \t\n\r"))
|
| 342 |
break;
|
| 343 |
thisillum.minbrt = atof(cp);
|
| 344 |
if (thisillum.minbrt < 0.)
|
| 345 |
thisillum.minbrt = 0.;
|
| 346 |
cp = sskip(cp);
|
| 347 |
continue;
|
| 348 |
case 'o': /* output file */
|
| 349 |
if (*++cp != '=')
|
| 350 |
break;
|
| 351 |
if (!*++cp || isspace(*cp))
|
| 352 |
break;
|
| 353 |
atos(buf, sizeof(buf), cp);
|
| 354 |
cp = sskip(cp);
|
| 355 |
if (freopen(buf, "w", stdout) == NULL) {
|
| 356 |
sprintf(errmsg,
|
| 357 |
"cannot open output file \"%s\"", buf);
|
| 358 |
error(SYSTEM, errmsg);
|
| 359 |
}
|
| 360 |
doneheader = 0;
|
| 361 |
continue;
|
| 362 |
case 'u': /* up direction */
|
| 363 |
if (*++cp != '=')
|
| 364 |
break;
|
| 365 |
if (!*++cp || isspace(*cp)) {
|
| 366 |
thisillum.udir = UDunknown;
|
| 367 |
continue;
|
| 368 |
}
|
| 369 |
negax = 0;
|
| 370 |
if (*cp == '+')
|
| 371 |
cp++;
|
| 372 |
else if (*cp == '-') {
|
| 373 |
negax++;
|
| 374 |
cp++;
|
| 375 |
}
|
| 376 |
switch (*cp++) {
|
| 377 |
case 'x':
|
| 378 |
case 'X':
|
| 379 |
thisillum.udir = negax ? UDxneg : UDxpos;
|
| 380 |
break;
|
| 381 |
case 'y':
|
| 382 |
case 'Y':
|
| 383 |
thisillum.udir = negax ? UDyneg : UDypos;
|
| 384 |
break;
|
| 385 |
case 'z':
|
| 386 |
case 'Z':
|
| 387 |
thisillum.udir = negax ? UDxneg : UDxpos;
|
| 388 |
break;
|
| 389 |
default:
|
| 390 |
thisillum.udir = UDunknown;
|
| 391 |
break;
|
| 392 |
}
|
| 393 |
if (thisillum.udir == UDunknown || !isspace(*cp))
|
| 394 |
break;
|
| 395 |
continue;
|
| 396 |
case '!': /* processed file! */
|
| 397 |
sprintf(errmsg, "(%s): already processed!", nm);
|
| 398 |
error(WARNING, errmsg);
|
| 399 |
matselect = S_NONE;
|
| 400 |
return;
|
| 401 |
}
|
| 402 |
opterr: /* skip faulty option */
|
| 403 |
while (*cp && !isspace(*cp))
|
| 404 |
cp++;
|
| 405 |
nerrs++;
|
| 406 |
}
|
| 407 |
/* print header? */
|
| 408 |
checkhead();
|
| 409 |
/* issue warnings? */
|
| 410 |
if (nerrs) {
|
| 411 |
sprintf(errmsg, "(%s): %d error(s) in option line:",
|
| 412 |
nm, nerrs);
|
| 413 |
error(WARNING, errmsg);
|
| 414 |
wputs(s);
|
| 415 |
printf("# %s: the following option line has %d error(s):\n",
|
| 416 |
progname, nerrs);
|
| 417 |
}
|
| 418 |
/* print pure comment */
|
| 419 |
printf("# %s", s+2);
|
| 420 |
}
|
| 421 |
|
| 422 |
void
|
| 423 |
printopts(void) /* print out option default values */
|
| 424 |
{
|
| 425 |
printf("m=%-15s\t\t# material name\n", thisillum.matname);
|
| 426 |
printf("f=%-15s\t\t# data file name\n", thisillum.datafile);
|
| 427 |
if (thisillum.flags & IL_COLAVG)
|
| 428 |
if (thisillum.flags & IL_COLDST)
|
| 429 |
printf("c=d\t\t\t\t# color distribution\n");
|
| 430 |
else
|
| 431 |
printf("c=a\t\t\t\t# color average\n");
|
| 432 |
else
|
| 433 |
printf("c=n\t\t\t\t# color none\n");
|
| 434 |
if (thisillum.flags & IL_LIGHT)
|
| 435 |
printf("l+\t\t\t\t# light type on\n");
|
| 436 |
else
|
| 437 |
printf("l-\t\t\t\t# light type off\n");
|
| 438 |
printf("d=%d\t\t\t\t# density of points\n", thisillum.sampdens);
|
| 439 |
printf("s=%d\t\t\t\t# samples per point\n", thisillum.nsamps);
|
| 440 |
printf("b=%f\t\t\t# minimum average brightness\n", thisillum.minbrt);
|
| 441 |
switch (thisillum.udir) {
|
| 442 |
case UDzneg:
|
| 443 |
fputs("u=-Z\t\t\t\t# up is negative Z\n", stdout);
|
| 444 |
break;
|
| 445 |
case UDyneg:
|
| 446 |
fputs("u=-Y\t\t\t\t# up is negative Y\n", stdout);
|
| 447 |
break;
|
| 448 |
case UDxneg:
|
| 449 |
fputs("u=-X\t\t\t\t# up is negative X\n", stdout);
|
| 450 |
break;
|
| 451 |
case UDxpos:
|
| 452 |
fputs("u=+X\t\t\t\t# up is positive X\n", stdout);
|
| 453 |
break;
|
| 454 |
case UDypos:
|
| 455 |
fputs("u=+Y\t\t\t\t# up is positive Y\n", stdout);
|
| 456 |
break;
|
| 457 |
case UDzpos:
|
| 458 |
fputs("u=+Z\t\t\t\t# up is positive Z\n", stdout);
|
| 459 |
break;
|
| 460 |
case UDunknown:
|
| 461 |
break;
|
| 462 |
}
|
| 463 |
}
|
| 464 |
|
| 465 |
|
| 466 |
void
|
| 467 |
printhead( /* print out header */
|
| 468 |
register int ac,
|
| 469 |
register char **av
|
| 470 |
)
|
| 471 |
{
|
| 472 |
putchar('#');
|
| 473 |
while (ac-- > 0) {
|
| 474 |
putchar(' ');
|
| 475 |
fputs(*av++, stdout);
|
| 476 |
}
|
| 477 |
fputs("\n#@mkillum !\n", stdout);
|
| 478 |
}
|
| 479 |
|
| 480 |
|
| 481 |
void
|
| 482 |
xobject( /* translate an object from fp */
|
| 483 |
FILE *fp,
|
| 484 |
char *nm
|
| 485 |
)
|
| 486 |
{
|
| 487 |
OBJREC thisobj;
|
| 488 |
char str[MAXSTR];
|
| 489 |
int doit;
|
| 490 |
/* read the object */
|
| 491 |
if (fgetword(thisillum.altmat, MAXSTR, fp) == NULL)
|
| 492 |
goto readerr;
|
| 493 |
if (fgetword(str, MAXSTR, fp) == NULL)
|
| 494 |
goto readerr;
|
| 495 |
/* is it an alias? */
|
| 496 |
if (!strcmp(str, ALIASKEY)) {
|
| 497 |
if (fgetword(str, MAXSTR, fp) == NULL)
|
| 498 |
goto readerr;
|
| 499 |
printf("\n%s %s %s", thisillum.altmat, ALIASKEY, str);
|
| 500 |
if (fgetword(str, MAXSTR, fp) == NULL)
|
| 501 |
goto readerr;
|
| 502 |
printf("\t%s\n", str);
|
| 503 |
return;
|
| 504 |
}
|
| 505 |
thisobj.omod = OVOID; /* unused field */
|
| 506 |
if ((thisobj.otype = otype(str)) < 0) {
|
| 507 |
sprintf(errmsg, "(%s): unknown type \"%s\"", nm, str);
|
| 508 |
error(USER, errmsg);
|
| 509 |
}
|
| 510 |
if (fgetword(str, MAXSTR, fp) == NULL)
|
| 511 |
goto readerr;
|
| 512 |
thisobj.oname = str;
|
| 513 |
if (readfargs(&thisobj.oargs, fp) != 1)
|
| 514 |
goto readerr;
|
| 515 |
thisobj.os = NULL;
|
| 516 |
/* check for translation */
|
| 517 |
switch (matselect) {
|
| 518 |
case S_NONE:
|
| 519 |
doit = 0;
|
| 520 |
break;
|
| 521 |
case S_ALL:
|
| 522 |
doit = 1;
|
| 523 |
break;
|
| 524 |
case S_ELEM:
|
| 525 |
doit = !strcmp(thisillum.altmat, matcheck);
|
| 526 |
break;
|
| 527 |
case S_COMPL:
|
| 528 |
doit = strcmp(thisillum.altmat, matcheck);
|
| 529 |
break;
|
| 530 |
}
|
| 531 |
doit = doit && issurface(thisobj.otype);
|
| 532 |
/* print header? */
|
| 533 |
checkhead();
|
| 534 |
/* process object */
|
| 535 |
if (doit)
|
| 536 |
switch (thisobj.otype) {
|
| 537 |
case OBJ_FACE:
|
| 538 |
my_face(&thisobj, &thisillum, nm);
|
| 539 |
break;
|
| 540 |
case OBJ_SPHERE:
|
| 541 |
my_sphere(&thisobj, &thisillum, nm);
|
| 542 |
break;
|
| 543 |
case OBJ_RING:
|
| 544 |
my_ring(&thisobj, &thisillum, nm);
|
| 545 |
break;
|
| 546 |
default:
|
| 547 |
my_default(&thisobj, &thisillum, nm);
|
| 548 |
break;
|
| 549 |
}
|
| 550 |
else
|
| 551 |
printobj(thisillum.altmat, &thisobj);
|
| 552 |
/* free arguments */
|
| 553 |
freefargs(&thisobj.oargs);
|
| 554 |
return;
|
| 555 |
readerr:
|
| 556 |
sprintf(errmsg, "(%s): error reading input", nm);
|
| 557 |
error(USER, errmsg);
|
| 558 |
}
|
