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root/radiance/ray/src/rt/rpmain.c
Revision: 2.30
Committed: Wed Jan 17 01:31:08 2024 UTC (15 months, 2 weeks ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.29: +6 -1 lines
Log Message:
fix(rpict,rvu,rcontrib): Fixed luminance estimate during spectral rendering

File Contents

# User Rev Content
1 greg 2.1 #ifndef lint
2 greg 2.30 static const char RCSid[] = "$Id: rpmain.c,v 2.29 2023/11/17 20:02:07 greg Exp $";
3 greg 2.1 #endif
4     /*
5     * rpmain.c - main for rpict batch rendering program
6     */
7    
8 greg 2.2 #include "copyright.h"
9 greg 2.1
10 greg 2.10 #include <time.h>
11 schorsch 2.3 #include <signal.h>
12    
13     #include "platform.h"
14 schorsch 2.6 #include "rtprocess.h" /* getpid() */
15 greg 2.1 #include "ray.h"
16     #include "source.h"
17     #include "ambient.h"
18     #include "random.h"
19     #include "paths.h"
20     #include "view.h"
21 greg 2.16 #include "pmapray.h"
22 greg 2.1
23     /* persistent processes define */
24     #ifdef F_SETLKW
25     #define PERSIST 1 /* normal persist */
26     #define PARALLEL 2 /* parallel persist */
27     #define PCHILD 3 /* child of normal persist */
28     #endif
29    
30     char *progname; /* argv[0] */
31     char *octname; /* octree name */
32     char *sigerr[NSIG]; /* signal error messages */
33     char *shm_boundary = NULL; /* boundary of shared memory */
34     char *errfile = NULL; /* error output file */
35    
36     extern time_t time();
37     extern time_t tstart; /* start time */
38    
39     extern int ralrm; /* seconds between reports */
40    
41     extern VIEW ourview; /* viewing parameters */
42    
43     extern int hresolu; /* horizontal resolution */
44     extern int vresolu; /* vertical resolution */
45     extern double pixaspect; /* pixel aspect ratio */
46    
47     extern int psample; /* pixel sample size */
48     extern double maxdiff; /* max. sample difference */
49     extern double dstrpix; /* square pixel distribution */
50    
51     extern double mblur; /* motion blur parameter */
52    
53 greg 2.9 extern double dblur; /* depth-of-field blur parameter */
54    
55 greg 2.28 RGBPRIMP out_prims = stdprims; /* output color primitives */
56     static RGBPRIMS our_prims; /* private output color primitives */
57    
58 schorsch 2.8 static void onsig(int signo);
59     static void sigdie(int signo, char *msg);
60     static void printdefaults(void);
61 greg 2.21 /* rpict additional features */
62     #ifdef PERSIST
63     #define RPICT_FEATURES "Persist\nParallelPersist\n" \
64 greg 2.29 "ParticipatingMedia=Mist\n" \
65 greg 2.22 "Recovery\nIrradianceCalc\nViewTypes=v,l,a,h,s,c\n" \
66     "HessianAmbientCache\nAmbientAveraging\nAmbientValueSharing\n" \
67     "PixelJitter\nPixelSampling\nPixelMotion\nPixelDepthOfField\n" \
68     "SmallSourceDrawing\nViewSequence\nProgressReporting\n" \
69 greg 2.23 "AdaptiveShadowTesting\nOutputs=v,l\n"
70 greg 2.21 #else
71     #define RPICT_FEATURES "Recovery\nIrradianceCalc\nViewTypes=v,l,a,h,s,c\n" \
72 greg 2.29 "ParticipatingMedia=Mist\n" \
73 greg 2.22 "HessianAmbientCache\nAmbientAveraging\nAmbientValueSharing\n" \
74     "PixelJitter\nPixelSampling\nPixelMotion\nPixelDepthOfField\n" \
75     "SmallSourceDrawing\nViewSequence\nProgressReporting\n" \
76 greg 2.23 "AdaptiveShadowTesting\nOutputs=v,l\n"
77 greg 2.21 #endif
78 greg 2.1
79    
80     int
81 schorsch 2.8 main(int argc, char *argv[])
82 greg 2.1 {
83     #define check(ol,al) if (argv[i][ol] || \
84     badarg(argc-i-1,argv+i+1,al)) \
85     goto badopt
86 schorsch 2.18 #define check_bool(olen,var) switch (argv[i][olen]) { \
87 greg 2.1 case '\0': var = !var; break; \
88     case 'y': case 'Y': case 't': case 'T': \
89     case '+': case '1': var = 1; break; \
90     case 'n': case 'N': case 'f': case 'F': \
91     case '-': case '0': var = 0; break; \
92     default: goto badopt; }
93     char *err;
94     char *recover = NULL;
95     char *outfile = NULL;
96     char *zfile = NULL;
97     int loadflags = ~IO_FILES;
98     int seqstart = 0;
99     int persist = 0;
100 greg 2.15 int duped1 = -1;
101 greg 2.1 int rval;
102     int i;
103     /* record start time */
104     tstart = time((time_t *)NULL);
105     /* global program name */
106     progname = argv[0] = fixargv0(argv[0]);
107 greg 2.21 /* feature check only? */
108     strcat(RFeatureList, RPICT_FEATURES);
109 greg 2.25 if (argc > 1 && !strcmp(argv[1], "-features"))
110 greg 2.21 return feature_status(argc-2, argv+2);
111 greg 2.1 /* option city */
112     for (i = 1; i < argc; i++) {
113     /* expand arguments */
114     while ((rval = expandarg(&argc, &argv, i)) > 0)
115     ;
116     if (rval < 0) {
117     sprintf(errmsg, "cannot expand '%s'", argv[i]);
118     error(SYSTEM, errmsg);
119     }
120     if (argv[i] == NULL || argv[i][0] != '-')
121     break; /* break from options */
122     if (!strcmp(argv[i], "-version")) {
123     puts(VersionID);
124     quit(0);
125     }
126     if (!strcmp(argv[i], "-defaults") ||
127     !strcmp(argv[i], "-help")) {
128     printdefaults();
129     quit(0);
130     }
131     rval = getrenderopt(argc-i, argv+i);
132     if (rval >= 0) {
133     i += rval;
134     continue;
135     }
136     rval = getviewopt(&ourview, argc-i, argv+i);
137     if (rval >= 0) {
138     i += rval;
139     continue;
140     }
141     /* rpict options */
142     switch (argv[i][1]) {
143     case 'v': /* view file */
144     if (argv[i][2] != 'f')
145     goto badopt;
146     check(3,"s");
147     rval = viewfile(argv[++i], &ourview, NULL);
148     if (rval < 0) {
149     sprintf(errmsg,
150     "cannot open view file \"%s\"",
151     argv[i]);
152     error(SYSTEM, errmsg);
153     } else if (rval == 0) {
154     sprintf(errmsg,
155     "bad view file \"%s\"",
156     argv[i]);
157     error(USER, errmsg);
158     }
159     break;
160     case 'p': /* pixel */
161     switch (argv[i][2]) {
162     case 's': /* sample */
163     check(3,"i");
164     psample = atoi(argv[++i]);
165     break;
166     case 't': /* threshold */
167     check(3,"f");
168     maxdiff = atof(argv[++i]);
169     break;
170     case 'j': /* jitter */
171     check(3,"f");
172     dstrpix = atof(argv[++i]);
173     break;
174     case 'a': /* aspect */
175     check(3,"f");
176     pixaspect = atof(argv[++i]);
177     break;
178     case 'm': /* motion */
179     check(3,"f");
180     mblur = atof(argv[++i]);
181     break;
182 greg 2.9 case 'd': /* aperture */
183     check(3,"f");
184     dblur = atof(argv[++i]);
185     break;
186 greg 2.28 case 'R': /* standard RGB output */
187     if (strcmp(argv[i]+2, "RGB"))
188     goto badopt;
189     out_prims = stdprims;
190     break;
191     case 'X': /* XYZ output */
192     if (strcmp(argv[i]+2, "XYZ"))
193     goto badopt;
194     out_prims = xyzprims;
195     break;
196     case 'c': { /* chromaticities */
197     int j;
198     check(3,"ffffffff");
199     rval = 0;
200     for (j = 0; j < 8; j++) {
201     our_prims[0][j] = atof(argv[++i]);
202     rval |= fabs(our_prims[0][j]-stdprims[0][j]) > .001;
203     }
204     if (rval) {
205     if (!colorprimsOK(our_prims))
206     error(USER, "illegal primary chromaticities");
207     out_prims = our_prims;
208     } else
209     out_prims = stdprims;
210     } break;
211 greg 2.1 default:
212     goto badopt;
213     }
214     break;
215     case 'x': /* x resolution */
216     check(2,"i");
217     hresolu = atoi(argv[++i]);
218     break;
219     case 'y': /* y resolution */
220     check(2,"i");
221     vresolu = atoi(argv[++i]);
222     break;
223     case 'S': /* slave index */
224     check(2,"i");
225     seqstart = atoi(argv[++i]);
226     break;
227     case 'o': /* output file */
228     check(2,"s");
229     outfile = argv[++i];
230     break;
231     case 'z': /* z file */
232     check(2,"s");
233     zfile = argv[++i];
234     break;
235     case 'r': /* recover file */
236     if (argv[i][2] == 'o') { /* +output */
237     check(3,"s");
238     outfile = argv[i+1];
239     } else
240     check(2,"s");
241     recover = argv[++i];
242     break;
243     case 't': /* timer */
244     check(2,"i");
245     ralrm = atoi(argv[++i]);
246     break;
247     #ifdef PERSIST
248     case 'P': /* persist file */
249     if (argv[i][2] == 'P') {
250     check(3,"s");
251     persist = PARALLEL;
252     } else {
253     check(2,"s");
254     persist = PERSIST;
255     }
256     persistfile(argv[++i]);
257     break;
258     #endif
259     case 'w': /* warnings */
260     rval = erract[WARNING].pf != NULL;
261 schorsch 2.18 check_bool(2,rval);
262 greg 2.1 if (rval) erract[WARNING].pf = wputs;
263     else erract[WARNING].pf = NULL;
264     break;
265     case 'e': /* error file */
266     check(2,"s");
267     errfile = argv[++i];
268     break;
269     default:
270     goto badopt;
271     }
272     }
273 greg 2.30 /* set/check spectral sampling */
274     rval = setspectrsamp(CNDX, WLPART);
275     if (rval < 0)
276     error(USER, "unsupported spectral sampling");
277    
278 greg 2.1 err = setview(&ourview); /* set viewing parameters */
279     if (err != NULL)
280     error(USER, err);
281     /* initialize object types */
282     initotypes();
283     /* initialize urand */
284 greg 2.12 if (rand_samp) {
285     srandom((long)time(0));
286     initurand(0);
287     } else {
288     srandom(0L);
289     initurand(2048);
290     }
291 greg 2.1 /* set up signal handling */
292     sigdie(SIGINT, "Interrupt");
293 schorsch 2.4 #ifdef SIGHUP
294 greg 2.1 sigdie(SIGHUP, "Hangup");
295 schorsch 2.4 #endif
296 greg 2.1 sigdie(SIGTERM, "Terminate");
297 schorsch 2.4 #ifdef SIGPIPE
298 greg 2.1 sigdie(SIGPIPE, "Broken pipe");
299 schorsch 2.4 #endif
300     #ifdef SIGALRM
301 greg 2.1 sigdie(SIGALRM, "Alarm clock");
302 schorsch 2.4 #endif
303 greg 2.1 #ifdef SIGXCPU
304     sigdie(SIGXCPU, "CPU limit exceeded");
305     sigdie(SIGXFSZ, "File size exceeded");
306     #endif
307     /* open error file */
308     if (errfile != NULL) {
309     if (freopen(errfile, "a", stderr) == NULL)
310     quit(2);
311     fprintf(stderr, "**************\n*** PID %5d: ",
312     getpid());
313     printargs(argc, argv, stderr);
314     putc('\n', stderr);
315     fflush(stderr);
316     }
317     #ifdef NICE
318     nice(NICE); /* lower priority */
319     #endif
320     /* get octree */
321     if (i == argc)
322     octname = NULL;
323     else if (i == argc-1)
324     octname = argv[i];
325     else
326     goto badopt;
327     if (seqstart > 0 && octname == NULL)
328     error(USER, "missing octree argument");
329     /* set up output */
330     #ifdef PERSIST
331     if (persist) {
332     if (recover != NULL)
333     error(USER, "persist option used with recover file");
334     if (seqstart <= 0)
335     error(USER, "persist option only for sequences");
336     if (outfile == NULL)
337     duped1 = dup(fileno(stdout)); /* don't lose our output */
338     openheader();
339     } else
340     #endif
341     if (outfile != NULL)
342     openheader();
343 schorsch 2.3 SET_FILE_BINARY(stdout);
344 greg 2.1 if (octname == NULL)
345 schorsch 2.3 SET_FILE_BINARY(stdin);
346 greg 2.1 readoct(octname, loadflags, &thescene, NULL);
347     nsceneobjs = nobjects;
348    
349     if (loadflags & IO_INFO) { /* print header */
350     printargs(i, argv, stdout);
351     printf("SOFTWARE= %s\n", VersionID);
352     }
353 greg 2.16
354     ray_init_pmap(); /* PMAP: set up & load photon maps */
355 greg 2.1
356     marksources(); /* find and mark sources */
357    
358     setambient(); /* initialize ambient calculation */
359 greg 2.16
360 greg 2.20 fflush(stdout); /* in case we're duplicating header */
361    
362 greg 2.1 #ifdef PERSIST
363     if (persist) {
364     if (outfile == NULL) { /* reconnect stdout */
365     dup2(duped1, fileno(stdout));
366     close(duped1);
367     }
368     if (persist == PARALLEL) { /* multiprocessing */
369     preload_objs(); /* preload scene */
370     shm_boundary = (char *)malloc(16);
371     strcpy(shm_boundary, "SHM_BOUNDARY");
372     while ((rval=fork()) == 0) { /* keep on forkin' */
373     pflock(1);
374     pfhold();
375     tstart = time((time_t *)NULL);
376 greg 2.13 ambsync(); /* load new values */
377 greg 2.1 }
378     if (rval < 0)
379     error(SYSTEM, "cannot fork child for persist function");
380 greg 2.13 pfdetach(); /* parent will run then exit */
381 greg 2.1 }
382     }
383     runagain:
384 schorsch 2.7 if (persist) {
385 greg 2.1 if (outfile == NULL) /* if out to stdout */
386     dupheader(); /* send header */
387     else /* if out to file */
388     duped1 = dup(fileno(stdout)); /* hang onto pipe */
389 schorsch 2.7 }
390 greg 2.1 #endif
391     /* batch render picture(s) */
392     rpict(seqstart, outfile, zfile, recover);
393     /* flush ambient file */
394     ambsync();
395     #ifdef PERSIST
396     if (persist == PERSIST) { /* first run-through */
397     if ((rval=fork()) == 0) { /* child loops until killed */
398     pflock(1);
399     persist = PCHILD;
400     } else { /* original process exits */
401     if (rval < 0)
402     error(SYSTEM, "cannot fork child for persist function");
403     pfdetach(); /* parent exits */
404     }
405     }
406     if (persist == PCHILD) { /* wait for a signal then go again */
407     if (outfile != NULL)
408     close(duped1); /* release output handle */
409     pfhold();
410     tstart = time((time_t *)NULL); /* reinitialize */
411     raynum = nrays = 0;
412     goto runagain;
413     }
414     #endif
415 greg 2.16
416    
417     ray_done_pmap(); /* PMAP: free photon maps */
418    
419 greg 2.1 quit(0);
420    
421     badopt:
422     sprintf(errmsg, "command line error at '%s'", argv[i]);
423     error(USER, errmsg);
424 schorsch 2.8 return 1; /* pro forma return */
425 greg 2.1
426     #undef check
427 schorsch 2.18 #undef check_bool
428 greg 2.1 }
429    
430    
431     void
432 schorsch 2.8 wputs( /* warning output function */
433 greg 2.26 const char *s
434 schorsch 2.8 )
435 greg 2.1 {
436     int lasterrno = errno;
437     eputs(s);
438     errno = lasterrno;
439     }
440    
441    
442     void
443 schorsch 2.8 eputs( /* put string to stderr */
444 greg 2.26 const char *s
445 schorsch 2.8 )
446 greg 2.1 {
447     static int midline = 0;
448    
449     if (!*s)
450     return;
451     if (!midline++) {
452     fputs(progname, stderr);
453     fputs(": ", stderr);
454     }
455     fputs(s, stderr);
456     if (s[strlen(s)-1] == '\n') {
457     fflush(stderr);
458     midline = 0;
459     }
460     }
461    
462    
463 schorsch 2.8 static void
464     onsig( /* fatal signal */
465     int signo
466     )
467 greg 2.1 {
468     static int gotsig = 0;
469    
470     if (gotsig++) /* two signals and we're gone! */
471     _exit(signo);
472    
473 schorsch 2.4 #ifdef SIGALRM /* XXX how critical is this? */
474 greg 2.1 alarm(15); /* allow 15 seconds to clean up */
475     signal(SIGALRM, SIG_DFL); /* make certain we do die */
476 schorsch 2.4 #endif
477 greg 2.1 eputs("signal - ");
478     eputs(sigerr[signo]);
479     eputs("\n");
480     quit(3);
481     }
482    
483    
484 schorsch 2.8 static void
485     sigdie( /* set fatal signal */
486     int signo,
487     char *msg
488     )
489 greg 2.1 {
490     if (signal(signo, onsig) == SIG_IGN)
491     signal(signo, SIG_IGN);
492     sigerr[signo] = msg;
493     }
494    
495    
496 schorsch 2.8 static void
497     printdefaults(void) /* print default values to stdout */
498 greg 2.1 {
499     printf("-vt%c\t\t\t\t# view type %s\n", ourview.type,
500     ourview.type==VT_PER ? "perspective" :
501     ourview.type==VT_PAR ? "parallel" :
502     ourview.type==VT_HEM ? "hemispherical" :
503     ourview.type==VT_ANG ? "angular" :
504     ourview.type==VT_CYL ? "cylindrical" :
505 greg 2.14 ourview.type==VT_PLS ? "planisphere" :
506 greg 2.1 "unknown");
507     printf("-vp %f %f %f\t# view point\n",
508     ourview.vp[0], ourview.vp[1], ourview.vp[2]);
509     printf("-vd %f %f %f\t# view direction\n",
510     ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]);
511     printf("-vu %f %f %f\t# view up\n",
512     ourview.vup[0], ourview.vup[1], ourview.vup[2]);
513     printf("-vh %f\t\t\t# view horizontal size\n", ourview.horiz);
514     printf("-vv %f\t\t\t# view vertical size\n", ourview.vert);
515     printf("-vo %f\t\t\t# view fore clipping plane\n", ourview.vfore);
516     printf("-va %f\t\t\t# view aft clipping plane\n", ourview.vaft);
517     printf("-vs %f\t\t\t# view shift\n", ourview.hoff);
518     printf("-vl %f\t\t\t# view lift\n", ourview.voff);
519     printf("-x %-9d\t\t\t# x resolution\n", hresolu);
520     printf("-y %-9d\t\t\t# y resolution\n", vresolu);
521 greg 2.28 if (out_prims == stdprims)
522     printf("-pRGB\t\t\t\t# standard RGB color output\n");
523     else if (out_prims == xyzprims)
524     printf("-pXYZ\t\t\t\t# CIE XYZ color output\n");
525     else if (out_prims != NULL)
526     printf("-pc %.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f\t# output color primaries and white point\n",
527     out_prims[RED][0], out_prims[RED][1],
528     out_prims[GRN][0], out_prims[GRN][1],
529     out_prims[BLU][0], out_prims[BLU][1],
530     out_prims[WHT][0], out_prims[WHT][1]);
531 greg 2.1 printf("-pa %f\t\t\t# pixel aspect ratio\n", pixaspect);
532     printf("-pj %f\t\t\t# pixel jitter\n", dstrpix);
533     printf("-pm %f\t\t\t# pixel motion\n", mblur);
534 greg 2.9 printf("-pd %f\t\t\t# pixel depth-of-field\n", dblur);
535 greg 2.1 printf("-ps %-9d\t\t\t# pixel sample\n", psample);
536     printf("-pt %f\t\t\t# pixel threshold\n", maxdiff);
537     printf("-t %-9d\t\t\t# time between reports\n", ralrm);
538     printf(erract[WARNING].pf != NULL ?
539     "-w+\t\t\t\t# warning messages on\n" :
540     "-w-\t\t\t\t# warning messages off\n");
541     print_rdefaults();
542     }