| 1 |
/* Copyright (c) 1996 Regents of the University of California */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* rmain.c - main for ray tracing programs |
| 9 |
* |
| 10 |
* 3/24/87 |
| 11 |
*/ |
| 12 |
|
| 13 |
/* for flaky pre-processors */ |
| 14 |
#ifndef RPICT |
| 15 |
#define RPICT 0 |
| 16 |
#endif |
| 17 |
#ifndef RTRACE |
| 18 |
#define RTRACE 0 |
| 19 |
#endif |
| 20 |
#ifndef RVIEW |
| 21 |
#define RVIEW 0 |
| 22 |
#endif |
| 23 |
|
| 24 |
#include "ray.h" |
| 25 |
|
| 26 |
#include "random.h" |
| 27 |
|
| 28 |
#include "resolu.h" |
| 29 |
|
| 30 |
#include "octree.h" |
| 31 |
|
| 32 |
#include <sys/types.h> |
| 33 |
|
| 34 |
#include <signal.h> |
| 35 |
|
| 36 |
#include "view.h" |
| 37 |
|
| 38 |
#include "paths.h" |
| 39 |
/* persistent processes define */ |
| 40 |
#ifdef F_SETLKW |
| 41 |
#if RPICT|RTRACE |
| 42 |
#define PERSIST 1 /* normal persist */ |
| 43 |
#define PARALLEL 2 /* parallel persist */ |
| 44 |
#define PCHILD 3 /* child of normal persist */ |
| 45 |
#endif |
| 46 |
#endif |
| 47 |
|
| 48 |
char *progname; /* argv[0] */ |
| 49 |
|
| 50 |
char *octname; /* octree name */ |
| 51 |
|
| 52 |
char *getlibpath(); /* library directory list */ |
| 53 |
|
| 54 |
char *sigerr[NSIG]; /* signal error messages */ |
| 55 |
|
| 56 |
char *shm_boundary = NULL; /* boundary of shared memory */ |
| 57 |
|
| 58 |
extern char VersionID[]; /* version ID string */ |
| 59 |
|
| 60 |
int (*trace)() = NULL; /* trace call */ |
| 61 |
int do_irrad = 0; /* compute irradiance? */ |
| 62 |
|
| 63 |
char *errfile = NULL; /* error output file */ |
| 64 |
|
| 65 |
extern time_t time(); |
| 66 |
time_t tstart; /* start time */ |
| 67 |
|
| 68 |
extern int ambnotify(); /* new object notify functions */ |
| 69 |
#if RTRACE |
| 70 |
extern int tranotify(); |
| 71 |
int (*addobjnotify[])() = {ambnotify, tranotify, NULL}; |
| 72 |
extern char *tralist[]; /* trace include/exclude list */ |
| 73 |
extern int traincl; /* include == 1, exclude == 0 */ |
| 74 |
#else |
| 75 |
int (*addobjnotify[])() = {ambnotify, NULL}; |
| 76 |
#endif |
| 77 |
|
| 78 |
CUBE thescene; /* our scene */ |
| 79 |
OBJECT nsceneobjs; /* number of objects in our scene */ |
| 80 |
|
| 81 |
extern unsigned long raynum, nrays; /* ray counts */ |
| 82 |
|
| 83 |
extern int imm_irrad; /* calculate immediate irradiance? */ |
| 84 |
extern int lim_dist; /* limit distance? */ |
| 85 |
|
| 86 |
extern int ralrm; /* seconds between reports */ |
| 87 |
|
| 88 |
extern int greyscale; /* map colors to brightness? */ |
| 89 |
extern char *devname; /* output device name */ |
| 90 |
extern double exposure; /* exposure compensation */ |
| 91 |
|
| 92 |
extern char *formstr(); /* string from format */ |
| 93 |
extern int inform; /* input format */ |
| 94 |
extern int outform; /* output format */ |
| 95 |
extern char *outvals; /* output values */ |
| 96 |
|
| 97 |
extern VIEW ourview; /* viewing parameters */ |
| 98 |
|
| 99 |
extern char rifname[]; /* rad input file name */ |
| 100 |
|
| 101 |
extern int hresolu; /* horizontal resolution */ |
| 102 |
extern int vresolu; /* vertical resolution */ |
| 103 |
extern double pixaspect; /* pixel aspect ratio */ |
| 104 |
|
| 105 |
extern int psample; /* pixel sample size */ |
| 106 |
extern double maxdiff; /* max. sample difference */ |
| 107 |
extern double dstrpix; /* square pixel distribution */ |
| 108 |
|
| 109 |
extern double mblur; /* motion blur parameter */ |
| 110 |
|
| 111 |
extern double dstrsrc; /* square source distribution */ |
| 112 |
extern double shadthresh; /* shadow threshold */ |
| 113 |
extern double shadcert; /* shadow testing certainty */ |
| 114 |
extern int directrelay; /* number of source relays */ |
| 115 |
extern int vspretest; /* virtual source pretest density */ |
| 116 |
extern int directvis; /* light sources visible to eye? */ |
| 117 |
extern double srcsizerat; /* maximum source size/dist. ratio */ |
| 118 |
|
| 119 |
extern double specthresh; /* specular sampling threshold */ |
| 120 |
extern double specjitter; /* specular sampling jitter */ |
| 121 |
|
| 122 |
extern COLOR cextinction; /* global extinction coefficient */ |
| 123 |
extern COLOR salbedo; /* global scattering albedo */ |
| 124 |
extern double seccg; /* global scattering eccentricity */ |
| 125 |
extern double ssampdist; /* scatter sampling distance */ |
| 126 |
|
| 127 |
extern int backvis; /* back face visibility */ |
| 128 |
|
| 129 |
extern int maxdepth; /* maximum recursion depth */ |
| 130 |
extern double minweight; /* minimum ray weight */ |
| 131 |
|
| 132 |
extern COLOR ambval; /* ambient value */ |
| 133 |
extern int ambvwt; /* initial weight for ambient value */ |
| 134 |
extern double ambacc; /* ambient accuracy */ |
| 135 |
extern int ambres; /* ambient resolution */ |
| 136 |
extern int ambdiv; /* ambient divisions */ |
| 137 |
extern int ambssamp; /* ambient super-samples */ |
| 138 |
extern int ambounce; /* ambient bounces */ |
| 139 |
extern char *amblist[]; /* ambient include/exclude list */ |
| 140 |
extern int ambincl; /* include == 1, exclude == 0 */ |
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|
| 142 |
|
| 143 |
main(argc, argv) |
| 144 |
int argc; |
| 145 |
char *argv[]; |
| 146 |
{ |
| 147 |
#define check(ol,al) if (argv[i][ol] || \ |
| 148 |
badarg(argc-i-1,argv+i+1,al)) \ |
| 149 |
goto badopt |
| 150 |
#define bool(olen,var) switch (argv[i][olen]) { \ |
| 151 |
case '\0': var = !var; break; \ |
| 152 |
case 'y': case 'Y': case 't': case 'T': \ |
| 153 |
case '+': case '1': var = 1; break; \ |
| 154 |
case 'n': case 'N': case 'f': case 'F': \ |
| 155 |
case '-': case '0': var = 0; break; \ |
| 156 |
default: goto badopt; } |
| 157 |
char *err; |
| 158 |
char *recover = NULL; |
| 159 |
char *outfile = NULL; |
| 160 |
char *zfile = NULL; |
| 161 |
char *ambfile = NULL; |
| 162 |
int loadflags = ~IO_FILES; |
| 163 |
int seqstart = 0; |
| 164 |
int persist = 0; |
| 165 |
char **amblp; |
| 166 |
char **tralp; |
| 167 |
int duped1; |
| 168 |
int rval; |
| 169 |
int i; |
| 170 |
/* record start time */ |
| 171 |
tstart = time((time_t *)NULL); |
| 172 |
/* global program name */ |
| 173 |
progname = argv[0] = fixargv0(argv[0]); |
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/* initialize object types */ |
| 175 |
initotypes(); |
| 176 |
/* initialize urand */ |
| 177 |
initurand(2048); |
| 178 |
/* option city */ |
| 179 |
for (i = 1; i < argc; i++) { |
| 180 |
/* expand arguments */ |
| 181 |
while (rval = expandarg(&argc, &argv, i)) |
| 182 |
if (rval < 0) { |
| 183 |
sprintf(errmsg, "cannot expand '%s'", argv[i]); |
| 184 |
error(SYSTEM, errmsg); |
| 185 |
} |
| 186 |
if (argv[i] == NULL || argv[i][0] != '-') |
| 187 |
break; /* break from options */ |
| 188 |
if (!strcmp(argv[i], "-version")) { |
| 189 |
puts(VersionID); |
| 190 |
quit(0); |
| 191 |
} |
| 192 |
if (!strcmp(argv[i], "-defaults") || |
| 193 |
!strcmp(argv[i], "-help")) { |
| 194 |
printdefaults(); |
| 195 |
quit(0); |
| 196 |
} |
| 197 |
#if RVIEW |
| 198 |
if (!strcmp(argv[i], "-devices")) { |
| 199 |
printdevices(); |
| 200 |
quit(0); |
| 201 |
} |
| 202 |
#endif |
| 203 |
#if RPICT|RVIEW |
| 204 |
rval = getviewopt(&ourview, argc-i, argv+i); |
| 205 |
if (rval >= 0) { |
| 206 |
i += rval; |
| 207 |
continue; |
| 208 |
} |
| 209 |
#endif |
| 210 |
switch (argv[i][1]) { |
| 211 |
#if RPICT|RVIEW |
| 212 |
case 'v': /* view file */ |
| 213 |
if (argv[i][2] != 'f') |
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goto badopt; |
| 215 |
check(3,"s"); |
| 216 |
rval = viewfile(argv[++i], &ourview, NULL); |
| 217 |
if (rval < 0) { |
| 218 |
sprintf(errmsg, |
| 219 |
"cannot open view file \"%s\"", |
| 220 |
argv[i]); |
| 221 |
error(SYSTEM, errmsg); |
| 222 |
} else if (rval == 0) { |
| 223 |
sprintf(errmsg, |
| 224 |
"bad view file \"%s\"", |
| 225 |
argv[i]); |
| 226 |
error(USER, errmsg); |
| 227 |
} |
| 228 |
break; |
| 229 |
#endif |
| 230 |
case 'b': /* back face vis. */ |
| 231 |
if (argv[i][2] == 'v') { |
| 232 |
bool(3,backvis); |
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break; |
| 234 |
} |
| 235 |
#if RVIEW |
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bool(2,greyscale); |
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break; |
| 238 |
#else |
| 239 |
goto badopt; |
| 240 |
#endif |
| 241 |
case 'd': /* direct */ |
| 242 |
switch (argv[i][2]) { |
| 243 |
case 't': /* threshold */ |
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check(3,"f"); |
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shadthresh = atof(argv[++i]); |
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break; |
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case 'c': /* certainty */ |
| 248 |
check(3,"f"); |
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shadcert = atof(argv[++i]); |
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break; |
| 251 |
case 'j': /* jitter */ |
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check(3,"f"); |
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dstrsrc = atof(argv[++i]); |
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break; |
| 255 |
case 'r': /* relays */ |
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check(3,"i"); |
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directrelay = atoi(argv[++i]); |
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break; |
| 259 |
case 'p': /* pretest */ |
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check(3,"i"); |
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vspretest = atoi(argv[++i]); |
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break; |
| 263 |
case 'v': /* visibility */ |
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bool(3,directvis); |
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break; |
| 266 |
case 's': /* size */ |
| 267 |
check(3,"f"); |
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srcsizerat = atof(argv[++i]); |
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break; |
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default: |
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goto badopt; |
| 272 |
} |
| 273 |
break; |
| 274 |
case 's': /* specular */ |
| 275 |
switch (argv[i][2]) { |
| 276 |
case 't': /* threshold */ |
| 277 |
check(3,"f"); |
| 278 |
specthresh = atof(argv[++i]); |
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break; |
| 280 |
case 'j': /* jitter */ |
| 281 |
check(3,"f"); |
| 282 |
specjitter = atof(argv[++i]); |
| 283 |
break; |
| 284 |
default: |
| 285 |
goto badopt; |
| 286 |
} |
| 287 |
break; |
| 288 |
#if RPICT|RVIEW |
| 289 |
case 'p': /* pixel */ |
| 290 |
switch (argv[i][2]) { |
| 291 |
case 's': /* sample */ |
| 292 |
check(3,"i"); |
| 293 |
psample = atoi(argv[++i]); |
| 294 |
break; |
| 295 |
case 't': /* threshold */ |
| 296 |
check(3,"f"); |
| 297 |
maxdiff = atof(argv[++i]); |
| 298 |
break; |
| 299 |
#if RPICT |
| 300 |
case 'j': /* jitter */ |
| 301 |
check(3,"f"); |
| 302 |
dstrpix = atof(argv[++i]); |
| 303 |
break; |
| 304 |
case 'a': /* aspect */ |
| 305 |
check(3,"f"); |
| 306 |
pixaspect = atof(argv[++i]); |
| 307 |
break; |
| 308 |
case 'm': /* motion */ |
| 309 |
check(3,"f"); |
| 310 |
mblur = atof(argv[++i]); |
| 311 |
break; |
| 312 |
#endif |
| 313 |
#if RVIEW |
| 314 |
case 'e': /* exposure */ |
| 315 |
check(3,"f"); |
| 316 |
exposure = atof(argv[++i]); |
| 317 |
if (argv[i][0] == '+' || argv[i][0] == '-') |
| 318 |
exposure = pow(2.0, exposure); |
| 319 |
break; |
| 320 |
#endif |
| 321 |
default: |
| 322 |
goto badopt; |
| 323 |
} |
| 324 |
break; |
| 325 |
#endif |
| 326 |
#if RPICT|RTRACE |
| 327 |
case 'x': /* x resolution */ |
| 328 |
check(2,"i"); |
| 329 |
hresolu = atoi(argv[++i]); |
| 330 |
break; |
| 331 |
case 'y': /* y resolution */ |
| 332 |
check(2,"i"); |
| 333 |
vresolu = atoi(argv[++i]); |
| 334 |
break; |
| 335 |
#endif |
| 336 |
case 'w': /* warnings */ |
| 337 |
rval = erract[WARNING].pf != NULL; |
| 338 |
bool(2,rval); |
| 339 |
if (rval) erract[WARNING].pf = wputs; |
| 340 |
else erract[WARNING].pf = NULL; |
| 341 |
break; |
| 342 |
case 'e': /* error file */ |
| 343 |
check(2,"s"); |
| 344 |
errfile = argv[++i]; |
| 345 |
break; |
| 346 |
case 'l': /* limit */ |
| 347 |
switch (argv[i][2]) { |
| 348 |
case 'r': /* recursion */ |
| 349 |
check(3,"i"); |
| 350 |
maxdepth = atoi(argv[++i]); |
| 351 |
break; |
| 352 |
case 'w': /* weight */ |
| 353 |
check(3,"f"); |
| 354 |
minweight = atof(argv[++i]); |
| 355 |
break; |
| 356 |
#if RTRACE |
| 357 |
case 'd': /* distance */ |
| 358 |
bool(3,lim_dist); |
| 359 |
break; |
| 360 |
#endif |
| 361 |
default: |
| 362 |
goto badopt; |
| 363 |
} |
| 364 |
break; |
| 365 |
case 'i': /* irradiance */ |
| 366 |
bool(2,do_irrad); |
| 367 |
break; |
| 368 |
#if RPICT |
| 369 |
case 'S': /* slave index */ |
| 370 |
check(2,"i"); |
| 371 |
seqstart = atoi(argv[++i]); |
| 372 |
break; |
| 373 |
case 'o': /* output file */ |
| 374 |
check(2,"s"); |
| 375 |
outfile = argv[++i]; |
| 376 |
break; |
| 377 |
case 'z': /* z file */ |
| 378 |
check(2,"s"); |
| 379 |
zfile = argv[++i]; |
| 380 |
break; |
| 381 |
case 'r': /* recover file */ |
| 382 |
if (argv[i][2] == 'o') { /* +output */ |
| 383 |
check(3,"s"); |
| 384 |
outfile = argv[i+1]; |
| 385 |
} else |
| 386 |
check(2,"s"); |
| 387 |
recover = argv[++i]; |
| 388 |
break; |
| 389 |
case 't': /* timer */ |
| 390 |
check(2,"i"); |
| 391 |
ralrm = atoi(argv[++i]); |
| 392 |
break; |
| 393 |
#endif |
| 394 |
case 'a': /* ambient */ |
| 395 |
switch (argv[i][2]) { |
| 396 |
case 'v': /* value */ |
| 397 |
check(3,"fff"); |
| 398 |
setcolor(ambval, atof(argv[i+1]), |
| 399 |
atof(argv[i+2]), |
| 400 |
atof(argv[i+3])); |
| 401 |
i += 3; |
| 402 |
break; |
| 403 |
case 'w': /* weight */ |
| 404 |
check(3,"i"); |
| 405 |
ambvwt = atoi(argv[++i]); |
| 406 |
break; |
| 407 |
case 'a': /* accuracy */ |
| 408 |
check(3,"f"); |
| 409 |
ambacc = atof(argv[++i]); |
| 410 |
break; |
| 411 |
case 'r': /* resolution */ |
| 412 |
check(3,"i"); |
| 413 |
ambres = atoi(argv[++i]); |
| 414 |
break; |
| 415 |
case 'd': /* divisions */ |
| 416 |
check(3,"i"); |
| 417 |
ambdiv = atoi(argv[++i]); |
| 418 |
break; |
| 419 |
case 's': /* super-samp */ |
| 420 |
check(3,"i"); |
| 421 |
ambssamp = atoi(argv[++i]); |
| 422 |
break; |
| 423 |
case 'b': /* bounces */ |
| 424 |
check(3,"i"); |
| 425 |
ambounce = atoi(argv[++i]); |
| 426 |
break; |
| 427 |
case 'i': /* include */ |
| 428 |
case 'I': |
| 429 |
check(3,"s"); |
| 430 |
if (ambincl != 1) { |
| 431 |
ambincl = 1; |
| 432 |
amblp = amblist; |
| 433 |
} |
| 434 |
if (argv[i][2] == 'I') { /* file */ |
| 435 |
rval = wordfile(amblp, |
| 436 |
getpath(argv[++i],getlibpath(),R_OK)); |
| 437 |
if (rval < 0) { |
| 438 |
sprintf(errmsg, |
| 439 |
"cannot open ambient include file \"%s\"", |
| 440 |
argv[i]); |
| 441 |
error(SYSTEM, errmsg); |
| 442 |
} |
| 443 |
amblp += rval; |
| 444 |
} else { |
| 445 |
*amblp++ = argv[++i]; |
| 446 |
*amblp = NULL; |
| 447 |
} |
| 448 |
break; |
| 449 |
case 'e': /* exclude */ |
| 450 |
case 'E': |
| 451 |
check(3,"s"); |
| 452 |
if (ambincl != 0) { |
| 453 |
ambincl = 0; |
| 454 |
amblp = amblist; |
| 455 |
} |
| 456 |
if (argv[i][2] == 'E') { /* file */ |
| 457 |
rval = wordfile(amblp, |
| 458 |
getpath(argv[++i],getlibpath(),R_OK)); |
| 459 |
if (rval < 0) { |
| 460 |
sprintf(errmsg, |
| 461 |
"cannot open ambient exclude file \"%s\"", |
| 462 |
argv[i]); |
| 463 |
error(SYSTEM, errmsg); |
| 464 |
} |
| 465 |
amblp += rval; |
| 466 |
} else { |
| 467 |
*amblp++ = argv[++i]; |
| 468 |
*amblp = NULL; |
| 469 |
} |
| 470 |
break; |
| 471 |
case 'f': /* file */ |
| 472 |
check(3,"s"); |
| 473 |
ambfile= argv[++i]; |
| 474 |
break; |
| 475 |
default: |
| 476 |
goto badopt; |
| 477 |
} |
| 478 |
break; |
| 479 |
case 'm': /* medium */ |
| 480 |
switch (argv[i][2]) { |
| 481 |
case 'e': /* extinction */ |
| 482 |
check(3,"fff"); |
| 483 |
setcolor(cextinction, atof(argv[i+1]), |
| 484 |
atof(argv[i+2]), |
| 485 |
atof(argv[i+3])); |
| 486 |
i += 3; |
| 487 |
break; |
| 488 |
case 'a': /* albedo */ |
| 489 |
check(3,"fff"); |
| 490 |
setcolor(salbedo, atof(argv[i+1]), |
| 491 |
atof(argv[i+2]), |
| 492 |
atof(argv[i+3])); |
| 493 |
i += 3; |
| 494 |
break; |
| 495 |
case 'g': /* eccentr. */ |
| 496 |
check(3,"f"); |
| 497 |
seccg = atof(argv[++i]); |
| 498 |
break; |
| 499 |
case 's': /* sampling */ |
| 500 |
check(3,"f"); |
| 501 |
ssampdist = atof(argv[++i]); |
| 502 |
break; |
| 503 |
default: |
| 504 |
goto badopt; |
| 505 |
} |
| 506 |
break; |
| 507 |
#if RTRACE |
| 508 |
case 'I': /* immed. irradiance */ |
| 509 |
bool(2,imm_irrad); |
| 510 |
break; |
| 511 |
case 'f': /* format i/o */ |
| 512 |
switch (argv[i][2]) { |
| 513 |
case 'a': /* ascii */ |
| 514 |
case 'f': /* float */ |
| 515 |
case 'd': /* double */ |
| 516 |
inform = argv[i][2]; |
| 517 |
break; |
| 518 |
default: |
| 519 |
goto badopt; |
| 520 |
} |
| 521 |
switch (argv[i][3]) { |
| 522 |
case '\0': |
| 523 |
outform = inform; |
| 524 |
break; |
| 525 |
case 'a': /* ascii */ |
| 526 |
case 'f': /* float */ |
| 527 |
case 'd': /* double */ |
| 528 |
case 'c': /* color */ |
| 529 |
check(4,""); |
| 530 |
outform = argv[i][3]; |
| 531 |
break; |
| 532 |
default: |
| 533 |
goto badopt; |
| 534 |
} |
| 535 |
break; |
| 536 |
case 'o': /* output */ |
| 537 |
outvals = argv[i]+2; |
| 538 |
break; |
| 539 |
case 'h': /* header output */ |
| 540 |
rval = loadflags & IO_INFO; |
| 541 |
bool(2,rval); |
| 542 |
loadflags = rval ? loadflags | IO_INFO : |
| 543 |
loadflags & ~IO_INFO; |
| 544 |
break; |
| 545 |
case 't': /* trace */ |
| 546 |
switch (argv[i][2]) { |
| 547 |
case 'i': /* include */ |
| 548 |
case 'I': |
| 549 |
check(3,"s"); |
| 550 |
if (traincl != 1) { |
| 551 |
traincl = 1; |
| 552 |
tralp = tralist; |
| 553 |
} |
| 554 |
if (argv[i][2] == 'I') { /* file */ |
| 555 |
rval = wordfile(tralp, |
| 556 |
getpath(argv[++i],getlibpath(),R_OK)); |
| 557 |
if (rval < 0) { |
| 558 |
sprintf(errmsg, |
| 559 |
"cannot open trace include file \"%s\"", |
| 560 |
argv[i]); |
| 561 |
error(SYSTEM, errmsg); |
| 562 |
} |
| 563 |
tralp += rval; |
| 564 |
} else { |
| 565 |
*tralp++ = argv[++i]; |
| 566 |
*tralp = NULL; |
| 567 |
} |
| 568 |
break; |
| 569 |
case 'e': /* exclude */ |
| 570 |
case 'E': |
| 571 |
check(3,"s"); |
| 572 |
if (traincl != 0) { |
| 573 |
traincl = 0; |
| 574 |
tralp = tralist; |
| 575 |
} |
| 576 |
if (argv[i][2] == 'E') { /* file */ |
| 577 |
rval = wordfile(tralp, |
| 578 |
getpath(argv[++i],getlibpath(),R_OK)); |
| 579 |
if (rval < 0) { |
| 580 |
sprintf(errmsg, |
| 581 |
"cannot open trace exclude file \"%s\"", |
| 582 |
argv[i]); |
| 583 |
error(SYSTEM, errmsg); |
| 584 |
} |
| 585 |
tralp += rval; |
| 586 |
} else { |
| 587 |
*tralp++ = argv[++i]; |
| 588 |
*tralp = NULL; |
| 589 |
} |
| 590 |
break; |
| 591 |
default: |
| 592 |
goto badopt; |
| 593 |
} |
| 594 |
break; |
| 595 |
#endif |
| 596 |
#if RVIEW |
| 597 |
case 'o': /* output device */ |
| 598 |
check(2,"s"); |
| 599 |
devname = argv[++i]; |
| 600 |
break; |
| 601 |
case 'R': /* render input file */ |
| 602 |
check(2,"s"); |
| 603 |
strcpy(rifname, argv[++i]); |
| 604 |
break; |
| 605 |
#endif |
| 606 |
#ifdef PERSIST |
| 607 |
case 'P': /* persist file */ |
| 608 |
if (argv[i][2] == 'P') { |
| 609 |
check(3,"s"); |
| 610 |
persist = PARALLEL; |
| 611 |
} else { |
| 612 |
check(2,"s"); |
| 613 |
persist = PERSIST; |
| 614 |
} |
| 615 |
persistfile(argv[++i]); |
| 616 |
break; |
| 617 |
#endif |
| 618 |
default: |
| 619 |
goto badopt; |
| 620 |
} |
| 621 |
} |
| 622 |
#if RPICT|RVIEW |
| 623 |
err = setview(&ourview); /* set viewing parameters */ |
| 624 |
if (err != NULL) |
| 625 |
error(USER, err); |
| 626 |
#endif |
| 627 |
/* set up signal handling */ |
| 628 |
sigdie(SIGINT, "Interrupt"); |
| 629 |
sigdie(SIGHUP, "Hangup"); |
| 630 |
sigdie(SIGTERM, "Terminate"); |
| 631 |
sigdie(SIGPIPE, "Broken pipe"); |
| 632 |
sigdie(SIGALRM, "Alarm clock"); |
| 633 |
#ifdef SIGXCPU |
| 634 |
sigdie(SIGXCPU, "CPU limit exceeded"); |
| 635 |
sigdie(SIGXFSZ, "File size exceeded"); |
| 636 |
#endif |
| 637 |
/* open error file */ |
| 638 |
if (errfile != NULL) { |
| 639 |
if (freopen(errfile, "a", stderr) == NULL) |
| 640 |
quit(2); |
| 641 |
fprintf(stderr, "**************\n*** PID %5d: ", |
| 642 |
getpid()); |
| 643 |
printargs(argc, argv, stderr); |
| 644 |
putc('\n', stderr); |
| 645 |
fflush(stderr); |
| 646 |
} |
| 647 |
#ifdef NICE |
| 648 |
nice(NICE); /* lower priority */ |
| 649 |
#endif |
| 650 |
/* get octree */ |
| 651 |
#if RVIEW |
| 652 |
loadflags &= ~IO_INFO; |
| 653 |
#endif |
| 654 |
if (i == argc) |
| 655 |
octname = NULL; |
| 656 |
else if (i == argc-1) |
| 657 |
octname = argv[i]; |
| 658 |
else |
| 659 |
goto badopt; |
| 660 |
if ( |
| 661 |
#if RPICT |
| 662 |
seqstart > 0 && |
| 663 |
#endif |
| 664 |
octname == NULL) |
| 665 |
error(USER, "missing octree argument"); |
| 666 |
/* set up output */ |
| 667 |
#ifdef PERSIST |
| 668 |
if (persist) { |
| 669 |
#if RPICT |
| 670 |
if (recover != NULL) |
| 671 |
error(USER, "persist option used with recover file"); |
| 672 |
if (seqstart <= 0) |
| 673 |
error(USER, "persist option only for sequences"); |
| 674 |
if (outfile == NULL) |
| 675 |
#endif |
| 676 |
duped1 = dup(fileno(stdout)); /* don't lose our output */ |
| 677 |
openheader(); |
| 678 |
} |
| 679 |
#if RPICT |
| 680 |
else |
| 681 |
#endif |
| 682 |
#endif |
| 683 |
#if RPICT |
| 684 |
if (outfile != NULL) |
| 685 |
openheader(); |
| 686 |
#endif |
| 687 |
#ifdef MSDOS |
| 688 |
#if RTRACE |
| 689 |
if (outform != 'a') |
| 690 |
#endif |
| 691 |
setmode(fileno(stdout), O_BINARY); |
| 692 |
if (octname == NULL) |
| 693 |
setmode(fileno(stdin), O_BINARY); |
| 694 |
#endif |
| 695 |
readoct(octname, loadflags, &thescene, NULL); |
| 696 |
nsceneobjs = nobjects; |
| 697 |
|
| 698 |
if (loadflags & IO_INFO) { /* print header */ |
| 699 |
printargs(i, argv, stdout); |
| 700 |
printf("SOFTWARE= %s\n", VersionID); |
| 701 |
#if RTRACE |
| 702 |
fputformat(formstr(outform), stdout); |
| 703 |
putchar('\n'); |
| 704 |
#endif |
| 705 |
} |
| 706 |
|
| 707 |
marksources(); /* find and mark sources */ |
| 708 |
|
| 709 |
setambient(ambfile); /* initialize ambient calculation */ |
| 710 |
|
| 711 |
#ifdef PERSIST |
| 712 |
if (persist) { |
| 713 |
fflush(stdout); |
| 714 |
if (outfile == NULL) { /* reconnect stdout */ |
| 715 |
dup2(duped1, fileno(stdout)); |
| 716 |
close(duped1); |
| 717 |
} |
| 718 |
if (persist == PARALLEL) { /* multiprocessing */ |
| 719 |
preload_objs(); /* preload scene */ |
| 720 |
strcpy(shm_boundary=bmalloc(16), "SHM_BOUNDARY"); |
| 721 |
while ((rval=fork()) == 0) { /* keep on forkin' */ |
| 722 |
pflock(1); |
| 723 |
pfhold(); |
| 724 |
tstart = time((time_t *)NULL); |
| 725 |
} |
| 726 |
if (rval < 0) |
| 727 |
error(SYSTEM, "cannot fork child for persist function"); |
| 728 |
pfdetach(); /* parent exits */ |
| 729 |
} |
| 730 |
} |
| 731 |
runagain: |
| 732 |
if (persist) |
| 733 |
if (outfile == NULL) /* if out to stdout */ |
| 734 |
dupheader(); /* send header */ |
| 735 |
else /* if out to file */ |
| 736 |
duped1 = dup(fileno(stdout)); /* hang onto pipe */ |
| 737 |
#endif |
| 738 |
#if RPICT |
| 739 |
rpict(seqstart, outfile, zfile, recover); |
| 740 |
#endif |
| 741 |
#if RTRACE |
| 742 |
rtrace(NULL); |
| 743 |
#endif |
| 744 |
#if RVIEW |
| 745 |
rview(); |
| 746 |
#endif |
| 747 |
ambsync(); /* flush ambient file */ |
| 748 |
#ifdef PERSIST |
| 749 |
if (persist == PERSIST) { /* first run-through */ |
| 750 |
if ((rval=fork()) == 0) { /* child loops until killed */ |
| 751 |
pflock(1); |
| 752 |
persist = PCHILD; |
| 753 |
} else { /* original process exits */ |
| 754 |
if (rval < 0) |
| 755 |
error(SYSTEM, "cannot fork child for persist function"); |
| 756 |
pfdetach(); /* parent exits */ |
| 757 |
} |
| 758 |
} |
| 759 |
if (persist == PCHILD) { /* wait for a signal then go again */ |
| 760 |
if (outfile != NULL) |
| 761 |
close(duped1); /* release output handle */ |
| 762 |
pfhold(); |
| 763 |
tstart = time((time_t *)NULL); /* reinitialize */ |
| 764 |
raynum = nrays = 0; |
| 765 |
goto runagain; |
| 766 |
} |
| 767 |
#endif |
| 768 |
quit(0); |
| 769 |
|
| 770 |
badopt: |
| 771 |
sprintf(errmsg, "command line error at '%s'", argv[i]); |
| 772 |
error(USER, errmsg); |
| 773 |
|
| 774 |
#undef check |
| 775 |
#undef bool |
| 776 |
} |
| 777 |
|
| 778 |
|
| 779 |
wputs(s) /* warning output function */ |
| 780 |
char *s; |
| 781 |
{ |
| 782 |
int lasterrno = errno; |
| 783 |
eputs(s); |
| 784 |
errno = lasterrno; |
| 785 |
} |
| 786 |
|
| 787 |
|
| 788 |
eputs(s) /* put string to stderr */ |
| 789 |
register char *s; |
| 790 |
{ |
| 791 |
static int midline = 0; |
| 792 |
|
| 793 |
if (!*s) |
| 794 |
return; |
| 795 |
if (!midline++) { |
| 796 |
fputs(progname, stderr); |
| 797 |
fputs(": ", stderr); |
| 798 |
} |
| 799 |
fputs(s, stderr); |
| 800 |
if (s[strlen(s)-1] == '\n') { |
| 801 |
fflush(stderr); |
| 802 |
midline = 0; |
| 803 |
} |
| 804 |
} |
| 805 |
|
| 806 |
|
| 807 |
onsig(signo) /* fatal signal */ |
| 808 |
int signo; |
| 809 |
{ |
| 810 |
static int gotsig = 0; |
| 811 |
|
| 812 |
if (gotsig++) /* two signals and we're gone! */ |
| 813 |
_exit(signo); |
| 814 |
|
| 815 |
alarm(15); /* allow 15 seconds to clean up */ |
| 816 |
signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
| 817 |
eputs("signal - "); |
| 818 |
eputs(sigerr[signo]); |
| 819 |
eputs("\n"); |
| 820 |
quit(3); |
| 821 |
} |
| 822 |
|
| 823 |
|
| 824 |
sigdie(signo, msg) /* set fatal signal */ |
| 825 |
int signo; |
| 826 |
char *msg; |
| 827 |
{ |
| 828 |
if (signal(signo, onsig) == SIG_IGN) |
| 829 |
signal(signo, SIG_IGN); |
| 830 |
sigerr[signo] = msg; |
| 831 |
} |
| 832 |
|
| 833 |
|
| 834 |
printdefaults() /* print default values to stdout */ |
| 835 |
{ |
| 836 |
register char *cp; |
| 837 |
|
| 838 |
#if RTRACE |
| 839 |
if (imm_irrad) |
| 840 |
printf("-I+\t\t\t\t# immediate irradiance on\n"); |
| 841 |
else |
| 842 |
#endif |
| 843 |
printf(do_irrad ? "-i+\t\t\t\t# irradiance calculation on\n" : |
| 844 |
"-i-\t\t\t\t# irradiance calculation off\n"); |
| 845 |
#if RVIEW |
| 846 |
printf(greyscale ? "-b+\t\t\t\t# greyscale on\n" : |
| 847 |
"-b-\t\t\t\t# greyscale off\n"); |
| 848 |
#endif |
| 849 |
#if RPICT|RVIEW |
| 850 |
printf("-vt%c\t\t\t\t# view type %s\n", ourview.type, |
| 851 |
ourview.type==VT_PER ? "perspective" : |
| 852 |
ourview.type==VT_PAR ? "parallel" : |
| 853 |
ourview.type==VT_HEM ? "hemispherical" : |
| 854 |
ourview.type==VT_ANG ? "angular" : |
| 855 |
ourview.type==VT_CYL ? "cylindrical" : |
| 856 |
"unknown"); |
| 857 |
printf("-vp %f %f %f\t# view point\n", |
| 858 |
ourview.vp[0], ourview.vp[1], ourview.vp[2]); |
| 859 |
printf("-vd %f %f %f\t# view direction\n", |
| 860 |
ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]); |
| 861 |
printf("-vu %f %f %f\t# view up\n", |
| 862 |
ourview.vup[0], ourview.vup[1], ourview.vup[2]); |
| 863 |
printf("-vh %f\t\t\t# view horizontal size\n", ourview.horiz); |
| 864 |
printf("-vv %f\t\t\t# view vertical size\n", ourview.vert); |
| 865 |
printf("-vo %f\t\t\t# view fore clipping plane\n", ourview.vfore); |
| 866 |
printf("-va %f\t\t\t# view aft clipping plane\n", ourview.vaft); |
| 867 |
printf("-vs %f\t\t\t# view shift\n", ourview.hoff); |
| 868 |
printf("-vl %f\t\t\t# view lift\n", ourview.voff); |
| 869 |
#endif |
| 870 |
#if RPICT|RTRACE |
| 871 |
printf("-x %-9d\t\t\t# x resolution\n", hresolu); |
| 872 |
printf("-y %-9d\t\t\t# y resolution\n", vresolu); |
| 873 |
#endif |
| 874 |
#if RPICT |
| 875 |
printf("-pa %f\t\t\t# pixel aspect ratio\n", pixaspect); |
| 876 |
printf("-pj %f\t\t\t# pixel jitter\n", dstrpix); |
| 877 |
printf("-pm %f\t\t\t# pixel motion\n", mblur); |
| 878 |
#endif |
| 879 |
#if RVIEW |
| 880 |
printf("-pe %f\t\t\t# pixel exposure\n", exposure); |
| 881 |
#endif |
| 882 |
#if RPICT|RVIEW |
| 883 |
printf("-ps %-9d\t\t\t# pixel sample\n", psample); |
| 884 |
printf("-pt %f\t\t\t# pixel threshold\n", maxdiff); |
| 885 |
#endif |
| 886 |
printf(backvis ? "-bv+\t\t\t\t# back face visibility on\n" : |
| 887 |
"-bv-\t\t\t\t# back face visibility off\n"); |
| 888 |
printf("-dt %f\t\t\t# direct threshold\n", shadthresh); |
| 889 |
printf("-dc %f\t\t\t# direct certainty\n", shadcert); |
| 890 |
printf("-dj %f\t\t\t# direct jitter\n", dstrsrc); |
| 891 |
printf("-ds %f\t\t\t# direct sampling\n", srcsizerat); |
| 892 |
printf("-dr %-9d\t\t\t# direct relays\n", directrelay); |
| 893 |
printf("-dp %-9d\t\t\t# direct pretest density\n", vspretest); |
| 894 |
printf(directvis ? "-dv+\t\t\t\t# direct visibility on\n" : |
| 895 |
"-dv-\t\t\t\t# direct visibility off\n"); |
| 896 |
printf("-sj %f\t\t\t# specular jitter\n", specjitter); |
| 897 |
printf("-st %f\t\t\t# specular threshold\n", specthresh); |
| 898 |
printf("-av %f %f %f\t# ambient value\n", colval(ambval,RED), |
| 899 |
colval(ambval,GRN), colval(ambval, BLU)); |
| 900 |
printf("-aw %-9d\t\t\t# ambient value weight\n", ambvwt); |
| 901 |
printf("-ab %-9d\t\t\t# ambient bounces\n", ambounce); |
| 902 |
printf("-aa %f\t\t\t# ambient accuracy\n", ambacc); |
| 903 |
printf("-ar %-9d\t\t\t# ambient resolution\n", ambres); |
| 904 |
printf("-ad %-9d\t\t\t# ambient divisions\n", ambdiv); |
| 905 |
printf("-as %-9d\t\t\t# ambient super-samples\n", ambssamp); |
| 906 |
printf("-me %.2e %.2e %.2e\t# mist extinction coefficient\n", |
| 907 |
colval(cextinction,RED), |
| 908 |
colval(cextinction,GRN), |
| 909 |
colval(cextinction,BLU)); |
| 910 |
printf("-ma %f %f %f\t# mist scattering albedo\n", colval(salbedo,RED), |
| 911 |
colval(salbedo,GRN), colval(salbedo,BLU)); |
| 912 |
printf("-mg %f\t\t\t# mist scattering eccentricity\n", seccg); |
| 913 |
printf("-ms %f\t\t\t# mist sampling distance\n", ssampdist); |
| 914 |
printf("-lr %-9d\t\t\t# limit reflection\n", maxdepth); |
| 915 |
printf("-lw %f\t\t\t# limit weight\n", minweight); |
| 916 |
#if RTRACE |
| 917 |
printf(lim_dist ? "-ld+\t\t\t\t# limit distance on\n" : |
| 918 |
"-ld-\t\t\t\t# limit distance off\n"); |
| 919 |
#endif |
| 920 |
#if RPICT |
| 921 |
printf("-t %-9d\t\t\t# time between reports\n", ralrm); |
| 922 |
#endif |
| 923 |
#if RVIEW |
| 924 |
printf("-o %s\t\t\t\t# output device\n", devname); |
| 925 |
#endif |
| 926 |
#if RTRACE |
| 927 |
printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n", |
| 928 |
inform, outform, formstr(inform), formstr(outform)); |
| 929 |
printf("-o%s\t\t\t\t# output", outvals); |
| 930 |
for (cp = outvals; *cp; cp++) |
| 931 |
switch (*cp) { |
| 932 |
case 't': printf(" trace"); break; |
| 933 |
case 'o': printf(" origin"); break; |
| 934 |
case 'd': printf(" direction"); break; |
| 935 |
case 'v': printf(" value"); break; |
| 936 |
case 'l': printf(" length"); break; |
| 937 |
case 'L': printf(" first_length"); break; |
| 938 |
case 'p': printf(" point"); break; |
| 939 |
case 'n': printf(" normal"); break; |
| 940 |
case 'N': printf(" unperturbed_normal"); break; |
| 941 |
case 's': printf(" surface"); break; |
| 942 |
case 'w': printf(" weight"); break; |
| 943 |
case 'm': printf(" modifier"); break; |
| 944 |
} |
| 945 |
putchar('\n'); |
| 946 |
#endif |
| 947 |
printf(erract[WARNING].pf != NULL ? |
| 948 |
"-w+\t\t\t\t# warning messages on\n" : |
| 949 |
"-w-\t\t\t\t# warning messages off\n"); |
| 950 |
} |
