1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: mkpmap.c,v 2.5 2016/05/17 17:39:47 rschregle Exp $"; |
3 |
#endif |
4 |
|
5 |
|
6 |
/* |
7 |
====================================================================== |
8 |
Photon map generator |
9 |
|
10 |
Roland Schregle (roland.schregle@{hslu.ch, gmail.com}) |
11 |
(c) Fraunhofer Institute for Solar Energy Systems, |
12 |
Lucerne University of Applied Sciences & Arts |
13 |
(c) Lucerne University of Applied Sciences and Arts, |
14 |
supported by the Swiss National Science Foundation (SNSF, #147053) |
15 |
====================================================================== |
16 |
|
17 |
$Id: mkpmap.c,v 2.5 2016/05/17 17:39:47 rschregle Exp $ |
18 |
*/ |
19 |
|
20 |
|
21 |
#include "pmap.h" |
22 |
#include "pmapmat.h" |
23 |
#include "pmapcontrib.h" |
24 |
#include "pmaprand.h" |
25 |
#include "paths.h" |
26 |
#include "ambient.h" |
27 |
#include "resolu.h" |
28 |
#include "source.h" |
29 |
#include <string.h> |
30 |
#include <sys/stat.h> |
31 |
|
32 |
|
33 |
extern char VersionID []; |
34 |
|
35 |
|
36 |
char* progname; /* argv[0] */ |
37 |
int dimlist [MAXDIM]; /* sampling dimensions */ |
38 |
int ndims = 0; /* number of sampling dimenshunns */ |
39 |
char* octname = NULL; /* octree name */ |
40 |
CUBE thescene; /* scene top-level octree */ |
41 |
OBJECT nsceneobjs; /* number of objects in scene */ |
42 |
double srcsizerat = 0.01; /* source partition size ratio */ |
43 |
int backvis = 1; /* back face visibility */ |
44 |
int clobber = 0; /* overwrite output */ |
45 |
COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
46 |
COLOR salbedo = BLKCOLOR; /* global scattering albedo */ |
47 |
double seccg = 0; /* global scattering eccentricity */ |
48 |
int ambincl = -1; /* photon port flag */ |
49 |
char *amblist [AMBLLEN + 1]; /* photon port list */ |
50 |
char *diagFile = NULL; /* diagnostics output file */ |
51 |
int rand_samp = 1; /* uncorrelated random sampling */ |
52 |
unsigned nproc = 1; /* number of parallel processes */ |
53 |
#ifdef EVALDRC_HACK |
54 |
char *angsrcfile = NULL; /* angular source file for EvalDRC */ |
55 |
#endif |
56 |
|
57 |
|
58 |
/* Dummies for linkage */ |
59 |
|
60 |
COLOR ambval = BLKCOLOR; |
61 |
double shadthresh = .05, ambacc = 0.2, shadcert = .5, minweight = 5e-3, |
62 |
ssampdist = 0, dstrsrc = 0.0, specthresh = 0.15, specjitter = 1.0, |
63 |
avgrefl = 0.5; |
64 |
int ambvwt = 0, ambssamp = 0, ambres = 32, ambounce = 0, directrelay = 1, |
65 |
directvis = 1, samplendx, do_irrad = 0, ambdiv = 128, vspretest = 512, |
66 |
maxdepth = 6, contrib = 0; |
67 |
char *shm_boundary = NULL, *ambfile = NULL, *RCCONTEXT = NULL; |
68 |
void (*trace)() = NULL, (*addobjnotify [])() = {ambnotify, NULL}; |
69 |
|
70 |
|
71 |
void printdefaults() |
72 |
/* print default values to stdout */ |
73 |
{ |
74 |
puts("-apg file nPhotons\t\t# global photon map"); |
75 |
puts("-apc file nPhotons\t\t# caustic photon map"); |
76 |
puts("-apd file nPhotons\t\t# direct photon map"); |
77 |
puts("-app file nPhotons bwidth\t# precomputed global photon map"); |
78 |
puts("-apv file nPhotons\t\t# volume photon map"); |
79 |
puts("-apC file nPhotons\t\t# contribution photon map"); |
80 |
|
81 |
printf("-apD %f\t\t\t# predistribution factor\n", preDistrib); |
82 |
printf("-apM %d\t\t\t\t# max predistrib passes\n", maxPreDistrib); |
83 |
printf("-apm %ld\t\t\t# max photon bounces\n", photonMaxBounce); |
84 |
puts("-apo mod\t\t\t# photon port modifier"); |
85 |
puts("-apO file\t\t\t# photon port file"); |
86 |
printf("-apP %f\t\t\t# precomputation factor\n", finalGather); |
87 |
printf("-apr %d\t\t\t\t# random seed\n", randSeed); |
88 |
puts("-aps mod\t\t\t# antimatter sensor modifier"); |
89 |
puts("-apS file\t\t\t# antimatter sensor file"); |
90 |
|
91 |
printf(backvis ? "-bv+\t\t\t\t# back face visibility on\n" |
92 |
: "-bv-\t\t\t\t# back face visibility off\n"); |
93 |
printf("-dp %.1f\t\t\t# PDF samples / sr\n", pdfSamples); |
94 |
printf("-ds %f\t\t\t# source partition size ratio\n", srcsizerat); |
95 |
printf("-e %s\t\t\t# diagnostics output file\n", diagFile); |
96 |
printf(clobber ? "-fo+\t\t\t\t# force overwrite\n" |
97 |
: "-fo-\t\t\t\t# do not overwrite\n"); |
98 |
printf("-ma %.2f %.2f %.2f\t\t# scattering albedo\n", |
99 |
colval(salbedo,RED), colval(salbedo,GRN), colval(salbedo,BLU)); |
100 |
printf("-me %.2e %.2e %.2e\t# extinction coefficient\n", |
101 |
colval(cextinction,RED), colval(cextinction,GRN), |
102 |
colval(cextinction,BLU)); |
103 |
printf("-mg %.2f\t\t\t# scattering eccentricity\n", seccg); |
104 |
#if NIX |
105 |
/* Multiprocessing on NIX only */ |
106 |
printf("-n %d\t\t\t\t# number of parallel processes\n", nproc); |
107 |
#endif |
108 |
printf("-t %-9d\t\t\t# time between reports\n", photonRepTime); |
109 |
printf(verbose ? "-v+\t\t\t\t# verbose console output\n" |
110 |
: "-v-\t\t\t\t# terse console output\n"); |
111 |
#ifdef PMAP_ROI |
112 |
/* Ziss option for ze egg-spurtz only! */ |
113 |
puts("-api xmin ymin zmin\n xmax ymax zmax\t\t# region of interest"); |
114 |
#endif |
115 |
#ifdef EVALDRC_HACK |
116 |
/* ... and ziss one... */ |
117 |
puts("-A\t\t\t\t# angular source file"); |
118 |
#endif |
119 |
} |
120 |
|
121 |
|
122 |
int main (int argc, char* argv []) |
123 |
{ |
124 |
#define check(ol, al) if (argv [i][ol] || \ |
125 |
badarg(argc - i - 1,argv + i + 1, al)) \ |
126 |
goto badopt |
127 |
|
128 |
#define check_bool(olen, var) switch (argv [i][olen]) { \ |
129 |
case '\0': var = !var; break; \ |
130 |
case 'y': case 'Y': case 't': case 'T': \ |
131 |
case '+': case '1': var = 1; break; \ |
132 |
case 'n': case 'N': case 'f': case 'F': \ |
133 |
case '-': case '0': var = 0; break; \ |
134 |
default: goto badopt; \ |
135 |
} |
136 |
|
137 |
int loadflags = IO_CHECK | IO_SCENE | IO_TREE | IO_BOUNDS, rval, i; |
138 |
char **portLp = NULL, **sensLp = photonSensorList; |
139 |
struct stat pmstat; |
140 |
|
141 |
/* Global program name */ |
142 |
progname = fixargv0(argv [0]); |
143 |
/* Initialize object types */ |
144 |
initotypes(); |
145 |
|
146 |
/* Parse options */ |
147 |
for (i = 1; i < argc; i++) { |
148 |
/* Eggs-pand arguments */ |
149 |
while ((rval = expandarg(&argc, &argv, i))) |
150 |
if (rval < 0) { |
151 |
sprintf(errmsg, "cannot eggs-pand '%s'", argv [i]); |
152 |
error(SYSTEM, errmsg); |
153 |
} |
154 |
|
155 |
if (argv[i] == NULL) |
156 |
break; |
157 |
|
158 |
if (!strcmp(argv [i], "-version")) { |
159 |
puts(VersionID); |
160 |
quit(0); |
161 |
} |
162 |
|
163 |
if (!strcmp(argv [i], "-defaults") || !strcmp(argv [i], "-help")) { |
164 |
printdefaults(); |
165 |
quit(0); |
166 |
} |
167 |
|
168 |
/* Get octree */ |
169 |
if (i == argc - 1) { |
170 |
octname = argv [i]; |
171 |
break; |
172 |
} |
173 |
|
174 |
switch (argv [i][1]) { |
175 |
case 'a': |
176 |
if (!strcmp(argv [i] + 2, "pg")) { |
177 |
/* Global photon map */ |
178 |
check(4, "ss"); |
179 |
globalPmapParams.fileName = argv [++i]; |
180 |
globalPmapParams.distribTarget = |
181 |
parseMultiplier(argv [++i]); |
182 |
if (!globalPmapParams.distribTarget) |
183 |
goto badopt; |
184 |
globalPmapParams.minGather = globalPmapParams.maxGather = 0; |
185 |
} |
186 |
|
187 |
else if (!strcmp(argv [i] + 2, "pm")) { |
188 |
/* Max photon bounces */ |
189 |
check(4, "i"); |
190 |
photonMaxBounce = atol(argv [++i]); |
191 |
if (photonMaxBounce <= 0) |
192 |
error(USER, "max photon bounces must be > 0"); |
193 |
} |
194 |
|
195 |
else if (!strcmp(argv [i] + 2, "pp")) { |
196 |
/* Precomputed global photon map */ |
197 |
check(4, "ssi"); |
198 |
preCompPmapParams.fileName = argv [++i]; |
199 |
preCompPmapParams.distribTarget = |
200 |
parseMultiplier(argv [++i]); |
201 |
if (!preCompPmapParams.distribTarget) |
202 |
goto badopt; |
203 |
preCompPmapParams.minGather = preCompPmapParams.maxGather = |
204 |
atoi(argv [++i]); |
205 |
if (!preCompPmapParams.maxGather) |
206 |
goto badopt; |
207 |
} |
208 |
|
209 |
else if (!strcmp(argv [i] + 2, "pc")) { |
210 |
/* Caustic photon map */ |
211 |
check(4, "ss"); |
212 |
causticPmapParams.fileName = argv [++i]; |
213 |
causticPmapParams.distribTarget = |
214 |
parseMultiplier(argv [++i]); |
215 |
if (!causticPmapParams.distribTarget) |
216 |
goto badopt; |
217 |
} |
218 |
|
219 |
else if (!strcmp(argv [i] + 2, "pv")) { |
220 |
/* Volume photon map */ |
221 |
check(4, "ss"); |
222 |
volumePmapParams.fileName = argv [++i]; |
223 |
volumePmapParams.distribTarget = |
224 |
parseMultiplier(argv [++i]); |
225 |
if (!volumePmapParams.distribTarget) |
226 |
goto badopt; |
227 |
} |
228 |
|
229 |
else if (!strcmp(argv [i] + 2, "pd")) { |
230 |
/* Direct photon map */ |
231 |
check(4, "ss"); |
232 |
directPmapParams.fileName = argv [++i]; |
233 |
directPmapParams.distribTarget = |
234 |
parseMultiplier(argv [++i]); |
235 |
if (!directPmapParams.distribTarget) |
236 |
goto badopt; |
237 |
} |
238 |
|
239 |
else if (!strcmp(argv [i] + 2, "pC")) { |
240 |
/* Light source contribution photon map */ |
241 |
check(4, "ss"); |
242 |
contribPmapParams.fileName = argv [++i]; |
243 |
contribPmapParams.distribTarget = |
244 |
parseMultiplier(argv [++i]); |
245 |
if (!contribPmapParams.distribTarget) |
246 |
goto badopt; |
247 |
} |
248 |
|
249 |
else if (!strcmp(argv [i] + 2, "pD")) { |
250 |
/* Predistribution factor */ |
251 |
check(4, "f"); |
252 |
preDistrib = atof(argv [++i]); |
253 |
if (preDistrib <= 0) |
254 |
error(USER, "predistribution factor must be > 0"); |
255 |
} |
256 |
|
257 |
else if (!strcmp(argv [i] + 2, "pM")) { |
258 |
/* Max predistribution passes */ |
259 |
check(4, "i"); |
260 |
maxPreDistrib = atoi(argv [++i]); |
261 |
if (maxPreDistrib <= 0) |
262 |
error(USER, "max predistribution passes must be > 0"); |
263 |
} |
264 |
|
265 |
#ifdef PMAP_ROI |
266 |
/* Add region of interest; for ze egg-spurtz only! */ |
267 |
else if (!strcmp(argv [i] + 2, "pi")) { |
268 |
unsigned j, n = pmapNumROI; |
269 |
check(4, "ffffff"); |
270 |
|
271 |
pmapROI = realloc(pmapROI, |
272 |
++pmapNumROI * sizeof(PhotonMapROI)); |
273 |
if (!pmapROI) |
274 |
1 error(SYSTEM, "failed to allocate ROI"); |
275 |
|
276 |
pmapROI [n].min [0] = atof(argv [++i]); |
277 |
pmapROI [n].min [1] = atof(argv [++i]); |
278 |
pmapROI [n].min [2] = atof(argv [++i]); |
279 |
pmapROI [n].max [0] = atof(argv [++i]); |
280 |
pmapROI [n].max [1] = atof(argv [++i]); |
281 |
pmapROI [n].max [2] = atof(argv [++i]); |
282 |
|
283 |
for (j = 0; j < 3; j++) |
284 |
if (pmapROI [n].min [j] >= pmapROI [n].max [j]) |
285 |
error(USER, |
286 |
"invalid region of interest (swapped min/max?)"); |
287 |
} |
288 |
#endif |
289 |
|
290 |
else if (!strcmp(argv [i] + 2, "pP")) { |
291 |
/* Global photon precomputation factor */ |
292 |
check(4, "f"); |
293 |
finalGather = atof(argv [++i]); |
294 |
if (finalGather <= 0 || finalGather > 1) |
295 |
error(USER, "global photon precomputation factor " |
296 |
"must be in range ]0, 1]"); |
297 |
} |
298 |
|
299 |
else if (!strcmp(argv [i] + 2, "po") || |
300 |
!strcmp(argv [i] + 2, "pO")) { |
301 |
/* Photon port */ |
302 |
check(4, "s"); |
303 |
|
304 |
if (ambincl != 1) { |
305 |
ambincl = 1; |
306 |
portLp = amblist; |
307 |
} |
308 |
|
309 |
if (argv[i][3] == 'O') { |
310 |
/* Get port modifiers from file */ |
311 |
rval = wordfile(portLp, AMBLLEN-(portLp-amblist), |
312 |
getpath(argv [++i], getrlibpath(), R_OK)); |
313 |
|
314 |
if (rval < 0) { |
315 |
sprintf(errmsg, "cannot open photon port file %s", |
316 |
argv [i]); |
317 |
error(SYSTEM, errmsg); |
318 |
} |
319 |
|
320 |
portLp += rval; |
321 |
} |
322 |
|
323 |
else { |
324 |
/* Append modifier to port list */ |
325 |
*portLp++ = argv [++i]; |
326 |
*portLp = NULL; |
327 |
} |
328 |
} |
329 |
|
330 |
else if (!strcmp(argv [i] + 2, "pr")) { |
331 |
/* Random seed */ |
332 |
check(4, "i"); |
333 |
randSeed = atoi(argv [++i]); |
334 |
} |
335 |
|
336 |
else if (!strcmp(argv [i] + 2, "ps") || |
337 |
!strcmp(argv [i] + 2, "pS")) { |
338 |
/* Antimatter sensor */ |
339 |
check(4, "s"); |
340 |
|
341 |
if (argv[i][3] == 'S') { |
342 |
/* Get sensor modifiers from file */ |
343 |
rval = wordfile(sensLp, MAXSET-(sensLp-photonSensorList), |
344 |
getpath(argv [++i], getrlibpath(), R_OK)); |
345 |
|
346 |
if (rval < 0) { |
347 |
sprintf(errmsg, "cannot open antimatter sensor file %s", |
348 |
argv [i]); |
349 |
error(SYSTEM, errmsg); |
350 |
} |
351 |
|
352 |
sensLp += rval; |
353 |
} |
354 |
|
355 |
else { |
356 |
/* Append modifier to sensor list */ |
357 |
*sensLp++ = argv [++i]; |
358 |
*sensLp = NULL; |
359 |
} |
360 |
} |
361 |
|
362 |
else goto badopt; |
363 |
break; |
364 |
|
365 |
case 'b': |
366 |
if (argv [i][2] == 'v') { |
367 |
/* Back face visibility */ |
368 |
check_bool(3, backvis); |
369 |
} |
370 |
|
371 |
else goto badopt; |
372 |
break; |
373 |
|
374 |
case 'd': /* Direct */ |
375 |
switch (argv [i][2]) { |
376 |
case 'p': /* PDF samples */ |
377 |
check(3, "f"); |
378 |
pdfSamples = atof(argv [++i]); |
379 |
break; |
380 |
|
381 |
case 's': /* Source partition size ratio */ |
382 |
check(3, "f"); |
383 |
srcsizerat = atof(argv [++i]); |
384 |
break; |
385 |
|
386 |
default: goto badopt; |
387 |
} |
388 |
break; |
389 |
|
390 |
case 'e': /* Diagnostics file */ |
391 |
check(2, "s"); |
392 |
diagFile = argv [++i]; |
393 |
break; |
394 |
|
395 |
case 'f': |
396 |
if (argv [i][2] == 'o') { |
397 |
/* Force overwrite */ |
398 |
check_bool(3, clobber); |
399 |
} |
400 |
|
401 |
else goto badopt; |
402 |
break; |
403 |
|
404 |
case 'm': /* Medium */ |
405 |
switch (argv[i][2]) { |
406 |
case 'e': /* Eggs-tinction coefficient */ |
407 |
check(3, "fff"); |
408 |
setcolor(cextinction, atof(argv [i + 1]), |
409 |
atof(argv [i + 2]), atof(argv [i + 3])); |
410 |
i += 3; |
411 |
break; |
412 |
|
413 |
case 'a': /* Albedo */ |
414 |
check(3, "fff"); |
415 |
setcolor(salbedo, atof(argv [i + 1]), |
416 |
atof(argv [i + 2]), atof(argv [i + 3])); |
417 |
i += 3; |
418 |
break; |
419 |
|
420 |
case 'g': /* Scattering eccentricity */ |
421 |
check(3, "f"); |
422 |
seccg = atof(argv [++i]); |
423 |
break; |
424 |
|
425 |
default: goto badopt; |
426 |
} |
427 |
break; |
428 |
#if NIX |
429 |
case 'n': /* Num parallel processes (NIX only) */ |
430 |
check(2, "i"); |
431 |
nproc = atoi(argv [++i]); |
432 |
|
433 |
if (nproc > PMAP_MAXPROC) { |
434 |
nproc = PMAP_MAXPROC; |
435 |
sprintf(errmsg, "too many parallel processes, clamping to " |
436 |
"%d\n", nproc); |
437 |
error(WARNING, errmsg); |
438 |
} |
439 |
break; |
440 |
#endif |
441 |
case 't': /* Timer */ |
442 |
check(2, "i"); |
443 |
photonRepTime = atoi(argv [++i]); |
444 |
break; |
445 |
|
446 |
case 'v': /* Verbosity */ |
447 |
check_bool(2, verbose); |
448 |
break; |
449 |
#ifdef EVALDRC_HACK |
450 |
case 'A': /* Angular source file */ |
451 |
check(2,"s"); |
452 |
angsrcfile = argv[++i]; |
453 |
break; |
454 |
#endif |
455 |
default: goto badopt; |
456 |
} |
457 |
} |
458 |
|
459 |
/* Open diagnostics file */ |
460 |
if (diagFile) { |
461 |
if (!freopen(diagFile, "a", stderr)) quit(2); |
462 |
fprintf(stderr, "**************\n*** PID %5d: ", getpid()); |
463 |
printargs(argc, argv, stderr); |
464 |
putc('\n', stderr); |
465 |
fflush(stderr); |
466 |
} |
467 |
|
468 |
#ifdef NICE |
469 |
/* Lower priority */ |
470 |
nice(NICE); |
471 |
#endif |
472 |
|
473 |
if (octname == NULL) |
474 |
error(USER, "missing octree argument"); |
475 |
|
476 |
/* Allocate photon maps and set parameters */ |
477 |
for (i = 0; i < NUM_PMAP_TYPES; i++) { |
478 |
setPmapParam(photonMaps + i, pmapParams + i); |
479 |
|
480 |
/* Don't overwrite existing photon map unless clobbering enabled */ |
481 |
if (photonMaps [i] && !stat(photonMaps [i] -> fileName, &pmstat) && |
482 |
!clobber) { |
483 |
sprintf(errmsg, "photon map file %s exists, not overwritten", |
484 |
photonMaps [i] -> fileName); |
485 |
error(USER, errmsg); |
486 |
} |
487 |
} |
488 |
|
489 |
for (i = 0; i < NUM_PMAP_TYPES && !photonMaps [i]; i++); |
490 |
if (i >= NUM_PMAP_TYPES) |
491 |
error(USER, "no photon maps specified"); |
492 |
|
493 |
readoct(octname, loadflags, &thescene, NULL); |
494 |
#ifdef EVALDRC_HACK |
495 |
if (angsrcfile) |
496 |
readobj(angsrcfile); /* load angular sources */ |
497 |
#endif |
498 |
nsceneobjs = nobjects; |
499 |
|
500 |
/* Get sources */ |
501 |
marksources(); |
502 |
|
503 |
/* Do forward pass and build photon maps */ |
504 |
if (contribPmap) |
505 |
/* Just build contrib pmap, ignore others */ |
506 |
distribPhotonContrib(contribPmap, nproc); |
507 |
else |
508 |
distribPhotons(photonMaps, nproc); |
509 |
|
510 |
/* Save photon maps; no idea why GCC needs an explicit cast here... */ |
511 |
savePmaps((const PhotonMap**)photonMaps, argc, argv); |
512 |
cleanUpPmaps(photonMaps); |
513 |
|
514 |
quit(0); |
515 |
|
516 |
badopt: |
517 |
sprintf(errmsg, "command line error at '%s'", argv[i]); |
518 |
error(USER, errmsg); |
519 |
|
520 |
#undef check |
521 |
#undef check_bool |
522 |
return 0; |
523 |
} |