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root/Development/ray/src/util/rfluxmtx.c

Comparing ray/src/util/rfluxmtx.c (file contents):
Revision 2.51 by greg, Mon Mar 2 22:00:05 2020 UTC vs.
Revision 2.62 by greg, Mon Oct 20 18:55:19 2025 UTC

#	Line 22 | Line 22 | static const char RCSid[] = "$Id$";
22		#define MAXRCARG        10000
23		#endif
24
25	<	char            *progname;              /* global argv[0] */
25	>	#define         NOWARN          1
26	>	#define         VERBO           2
27
28	<	int             verbose = 0;            /* verbose mode (< 0 no warnings) */
28	>	int             verbose = 0;            /* verbose/warning mode */
29
30		char            *rcarg[MAXRCARG+1] = {"rcontrib", "-fo+"};
31		int             nrcargs = 2;
#	Line 41 | Line 42 | char           *shirchiufn = "disk2square.cal";
42		char            *kfullfn = "klems_full.cal";
43		char            *khalffn = "klems_half.cal";
44		char            *kquarterfn = "klems_quarter.cal";
45	+	char            *ciefn = "cieskyscan.cal";
46
47		/* string indicating parameters */
48	<	const char      PARAMSTART[] = "@rfluxmtx";
48	>	#define PARAMSTART      "@rfluxmtx"
49
50		/* surface type IDs */
51		#define ST_NONE         0
#	Line 108 | Line 110 | clear_params(PARAMS *p, int reset_only)
110		free(sdel);
111		}
112		if (reset_only) {
113	+	p->slist = NULL;
114		p->nsurfs = 0;
115		memset(p->nrm, 0, sizeof(FVECT));
116		memset(p->vup, 0, sizeof(FVECT));
#	Line 140 | Line 143 | oconv_command(int ac, char *av[])
143
144		if (ac-- <= 0)
145		return(NULL);
146	<	if (verbose < 0) {      /* turn off warnings */
146	>	if (verbose & NOWARN) { /* warnings off? */
147		strcpy(cp, "-w ");
148		cp += 3;
149		}
#	Line 191 | Line 194 | popen_arglist(char *av[], char *mode)
194		fputs(": command line too long in popen_arglist()\n", stderr);
195		return(NULL);
196		}
197	<	if (verbose > 0)
197	>	if (verbose & VERBO)
198		fprintf(stderr, "%s: opening pipe %s: %s\n",
199		progname, (*mode=='w') ? "to" : "from", cmd);
200		return(popen(cmd, mode));
#	Line 210 | Line 213 | my_exec(char *av[])
213		fputs(": command line too long in my_exec()\n", stderr);
214		return(1);
215		}
216	<	if (verbose > 0)
216	>	if (verbose & VERBO)
217		fprintf(stderr, "%s: running: %s\n", progname, cmd);
218		return(system(cmd));
219		}
#	Line 229 | Line 232 | popen_arglist(char *av[], char *mode)
232		fprintf(stderr, "%s: only one i/o pipe at a time!\n", progname);
233		return(NULL);
234		}
235	<	if (verbose > 0) {
235	>	if (verbose & VERBO) {
236		char    cmd[4096];
237		if (!convert_commandline(cmd, sizeof(cmd), av))
238		strcpy(cmd, "COMMAND TOO LONG TO SHOW");
#	Line 274 | Line 277 | my_exec(char *av[])
277		fprintf(stderr, "%s: cannot locate %s\n", progname, av[0]);
278		return(1);
279		}
280	<	if (verbose > 0) {
280	>	if (verbose & VERBO) {
281		char    cmd[4096];
282		if (!convert_commandline(cmd, sizeof(cmd), av))
283		strcpy(cmd, "COMMAND TOO LONG TO SHOW");
#	Line 499 | Line 502 | finish_receiver(void)
502		calfn = kquarterfn; kquarterfn = NULL;
503		binf = "kqbin";
504		nbins = "Nkqbins";
505	+	} else if (!strcasecmp(curparams.hemis, "cie")) {
506	+	calfn = ciefn; ciefn = NULL;
507	+	sprintf(sbuf, "rNx=%g,rNy=%g,rNz=%g,Ux=%g,Uy=%g,Uz=%g,RHS=%c1",
508	+	curparams.nrm[0], curparams.nrm[1], curparams.nrm[2],
509	+	curparams.vup[0], curparams.vup[1], curparams.vup[2],
510	+	curparams.sign);
511	+	params = savqstr(sbuf);
512	+	binv = "cbin";
513	+	nbins = "Ncbins";
514		} else {
515		fprintf(stderr, "%s: unrecognized hemisphere sampling: h=%s\n",
516		progname, curparams.hemis);
#	Line 508 | Line 520 | finish_receiver(void)
520		sprintf(sbuf, "RHS=%c1", curparams.sign);
521		params = savqstr(sbuf);
522		}
523	<	if (!uniform & (curparams.slist->styp == ST_SOURCE)) {
523	>	if (!uniform) {
524		SURF    *sp;
525		for (sp = curparams.slist; sp != NULL; sp = sp->next)
526	<	if (fabs(sp->area - PI) > 1e-3) {
526	>	if (sp->styp == ST_SOURCE && fabs(sp->area - PI) > 1e-3) {
527		fprintf(stderr, "%s: source '%s' must be 180-degrees\n",
528		progname, sp->sname);
529		exit(1);
#	Line 720 | Line 732 | sample_origin(PARAMS *p, FVECT orig, const FVECT rdir,
732		/* compute projected areas */
733		for (i = 0, sp = p->slist; sp != NULL; i++, sp = sp->next) {
734		projsa[i] = -DOT(sp->snrm, rdir) * sp->area;
735	<	tarea += projsa[i] *= (double)(projsa[i] > FTINY);
735	>	tarea += projsa[i] *= (double)(projsa[i] > 0);
736		}
737	<	if (tarea < 0) {                /* wrong side of sender? */
737	>	if (tarea < FTINY*FTINY) {      /* wrong side of sender? */
738		fputs(progname, stderr);
739		fputs(": internal - sample behind all sender elements!\n",
740		stderr);
#	Line 740 | Line 752 | sample_uniform(PARAMS *p, int b, FILE *fp)
752		{
753		int     n = sampcnt;
754		double  samp3[3];
755	<	double  duvw[3];
744	<	FVECT   orig_dir[2];
755	>	FVECT   duvw, orig_dir[2];
756		int     i;
757
758		if (fp == NULL)                 /* just requesting number of bins? */
#	Line 749 | Line 760 | sample_uniform(PARAMS *p, int b, FILE *fp)
760
761		while (n--) {                   /* stratified hemisphere sampling */
762		SDmultiSamp(samp3, 3, (n+frandom())/sampcnt);
763	<	SDsquare2disk(duvw, samp3[1], samp3[2]);
763	>	square2disk(duvw, samp3[1], samp3[2]);
764		duvw[2] = -sqrt(1. - duvw[0]*duvw[0] - duvw[1]*duvw[1]);
765		for (i = 3; i--; )
766		orig_dir[1][i] = duvw[0]*p->udir[i] +
#	Line 769 | Line 780 | sample_shirchiu(PARAMS *p, int b, FILE *fp)
780		{
781		int     n = sampcnt;
782		double  samp3[3];
783	<	double  duvw[3];
773	<	FVECT   orig_dir[2];
783	>	FVECT   duvw, orig_dir[2];
784		int     i;
785
786		if (fp == NULL)                 /* just requesting number of bins? */
#	Line 778 | Line 788 | sample_shirchiu(PARAMS *p, int b, FILE *fp)
788
789		while (n--) {                   /* stratified sampling */
790		SDmultiSamp(samp3, 3, (n+frandom())/sampcnt);
791	<	SDsquare2disk(duvw, (b/p->hsiz + samp3[1])/curparams.hsiz,
791	>	square2disk(duvw, (b/p->hsiz + samp3[1])/curparams.hsiz,
792		(b%p->hsiz + samp3[2])/curparams.hsiz);
793		duvw[2] = sqrt(1. - duvw[0]*duvw[0] - duvw[1]*duvw[1]);
794		for (i = 3; i--; )
#	Line 896 | Line 906 | sample_klems(PARAMS *p, int b, FILE *fp)
906
907		/* Prepare hemisphere basis sampler that will send rays to rcontrib */
908		static int
909	<	prepare_sampler(void)
909	>	prepare_sampler(PARAMS *p)
910		{
911	<	if (curparams.slist == NULL) {  /* missing sample surface! */
912	<	fputs(progname, stderr);
903	<	fputs(": no sender surface!\n", stderr);
911	>	if (p->slist == NULL) {         /* missing sample surface! */
912	>	error(USER, "no sender surface");
913		return(-1);
914		}
915		/* misplaced output file spec. */
916	<	if ((curparams.outfn != NULL) & (verbose >= 0))
917	<	fprintf(stderr, "%s: warning - ignoring output file in sender ('%s')\n",
918	<	progname, curparams.outfn);
916	>	if (p->outfn[0]) {
917	>	sprintf(errmsg, "ignoring output file in sender ('%s')",
918	>	p->outfn);
919	>	error(WARNING, errmsg);
920	>	}
921		/* check/set basis hemisphere */
922	<	if (!curparams.hemis[0]) {
923	<	fputs(progname, stderr);
913	<	fputs(": missing sender sampling type!\n", stderr);
922	>	if (!p->hemis[0]) {
923	>	error(USER, "missing sender sampling type");
924		return(-1);
925		}
926	<	if (normalize(curparams.nrm) == 0) {
927	<	fputs(progname, stderr);
918	<	fputs(": undefined normal for sender sampling\n", stderr);
926	>	if (normalize(p->nrm) == 0) {
927	>	error(USER, "undefined normal for sender sampling");
928		return(-1);
929		}
930	<	if (normalize(curparams.vup) == 0) {
931	<	if (fabs(curparams.nrm[2]) < .7)
932	<	curparams.vup[2] = 1;
930	>	if (normalize(p->vup) == 0) {
931	>	if (fabs(p->nrm[2]) < .7)
932	>	p->vup[2] = 1;
933		else
934	<	curparams.vup[1] = 1;
934	>	p->vup[1] = 1;
935		}
936	<	fcross(curparams.udir, curparams.vup, curparams.nrm);
937	<	if (normalize(curparams.udir) == 0) {
938	<	fputs(progname, stderr);
930	<	fputs(": up vector coincides with sender normal\n", stderr);
936	>	fcross(p->udir, p->vup, p->nrm);
937	>	if (normalize(p->udir) == 0) {
938	>	error(USER, "up vector coincides with sender normal");
939		return(-1);
940		}
941	<	fcross(curparams.vdir, curparams.nrm, curparams.udir);
942	<	if (curparams.sign == '-') {    /* left-handed coordinate system? */
943	<	curparams.udir[0] *= -1.;
944	<	curparams.udir[1] *= -1.;
945	<	curparams.udir[2] *= -1.;
941	>	fcross(p->vdir, p->nrm, p->udir);
942	>	if (p->sign == '-') {           /* left-handed coordinate system? */
943	>	p->udir[0] *= -1.;
944	>	p->udir[1] *= -1.;
945	>	p->udir[2] *= -1.;
946		}
947	<	if ((tolower(curparams.hemis[0]) == 'u') | (curparams.hemis[0] == '1'))
948	<	curparams.sample_basis = sample_uniform;
949	<	else if (tolower(curparams.hemis[0]) == 's' &&
950	<	tolower(curparams.hemis[1]) == 'c')
951	<	curparams.sample_basis = sample_shirchiu;
952	<	else if ((tolower(curparams.hemis[0]) == 'r') |
953	<	(tolower(curparams.hemis[0]) == 't'))
954	<	curparams.sample_basis = sample_reinhart;
955	<	else if (tolower(curparams.hemis[0]) == 'k') {
956	<	switch (curparams.hemis[1]) {
947	>	if ((tolower(p->hemis[0]) == 'u') | (p->hemis[0] == '1'))
948	>	p->sample_basis = sample_uniform;
949	>	else if (tolower(p->hemis[0]) == 's' &&
950	>	tolower(p->hemis[1]) == 'c')
951	>	p->sample_basis = sample_shirchiu;
952	>	else if ((tolower(p->hemis[0]) == 'r') |
953	>	(tolower(p->hemis[0]) == 't'))
954	>	p->sample_basis = sample_reinhart;
955	>	else if (tolower(p->hemis[0]) == 'k') {
956	>	switch (p->hemis[1]) {
957		case '1':
958		case '2':
959		case '4':
#	Line 953 | Line 961 | prepare_sampler(void)
961		case 'f':
962		case 'F':
963		case '\0':
964	<	curparams.hemis[1] = '1';
964	>	p->hemis[1] = '1';
965		break;
966		case 'h':
967		case 'H':
968	<	curparams.hemis[1] = '2';
968	>	p->hemis[1] = '2';
969		break;
970		case 'q':
971		case 'Q':
972	<	curparams.hemis[1] = '4';
972	>	p->hemis[1] = '4';
973		break;
974		default:
975		goto unrecognized;
976		}
977	<	curparams.hemis[2] = '\0';
978	<	curparams.sample_basis = sample_klems;
977	>	p->hemis[2] = '\0';
978	>	p->sample_basis = sample_klems;
979		} else
980		goto unrecognized;
981		/* return number of bins */
982	<	return((*curparams.sample_basis)(&curparams,0,NULL));
982	>	return((*p->sample_basis)(p,0,NULL));
983		unrecognized:
984		fprintf(stderr, "%s: unrecognized sender sampling: h=%s\n",
985	<	progname, curparams.hemis);
985	>	progname, p->hemis);
986		return(-1);
987		}
988
#	Line 997 | Line 1005 | finish_polygon(SURF *p)
1005		VCOPY(e1, e2);
1006		}
1007		p->area = normalize(p->snrm)*0.5;
1008	<	return(p->area > FTINY);
1008	>	return(p->area > FTINY*FTINY);
1009		}
1010
1011		/* Add a surface to our current parameters */
#	Line 1060 | Line 1068 | add_surface(int st, const char *oname, FILE *fp)
1068		snew->area *= PI*snew->area;
1069		break;
1070		}
1071	<	if ((snew->area <= FTINY) & (verbose >= 0)) {
1071	>	if ((snew->area <= FTINY*FTINY) & !(verbose & NOWARN)) {
1072		fprintf(stderr, "%s: warning - zero area for surface '%s'\n",
1073		progname, oname);
1074		free(snew);
#	Line 1097 | Line 1105 | add_recv_object(FILE *fp)
1105		}
1106		/* is it a new receiver? */
1107		if ((st = surf_type(otype)) != ST_NONE) {
1100	–	if (curparams.slist != NULL && (st == ST_SOURCE) ^
1101	–	(curparams.slist->styp == ST_SOURCE)) {
1102	–	fputs(progname, stderr);
1103	–	fputs(": cannot mix source/non-source receivers!\n", stderr);
1104	–	return(-1);
1105	–	}
1108		if (strcmp(thismod, curmod)) {
1109		if (curmod[0]) {        /* output last receiver? */
1110		finish_receiver();
#	Line 1238 | Line 1240 | main(int argc, char *argv[])
1240		FILE    *rcfp;
1241		int     nsbins;
1242		int     a, i;
1243	+	/* set global progname */
1244	+	fixargv0(argv[0]);
1245		/* screen rcontrib options */
1242	–	progname = argv[0];
1246		for (a = 1; a < argc-2; a++) {
1247		int     na;
1248		/* check for argument expansion */
#	Line 1255 | Line 1258 | main(int argc, char *argv[])
1258		na = 1;
1259		switch (argv[a][1]) {   /* !! Keep consistent !! */
1260		case 'v':               /* verbose mode */
1261	<	verbose = 1;
1261	>	verbose ^= VERBO;
1262		na = 0;
1263		continue;
1264		case 'f':               /* special case for -fo, -ff, etc. */
#	Line 1285 | Line 1288 | main(int argc, char *argv[])
1288		yrs = argv[++a];
1289		na = 0;
1290		continue;
1291	<	case 'c':               /* number of samples */
1292	<	sampcnt = atoi(argv[++a]);
1293	<	if (sampcnt <= 0)
1294	<	goto userr;
1295	<	na = 0;         /* we re-add this later */
1296	<	continue;
1291	>	case 'c':               /* spectral sampling or count */
1292	>	switch (argv[a][2]) {
1293	>	case 's':
1294	>	na = 2;
1295	>	break;
1296	>	case 'w':
1297	>	na = 3;
1298	>	break;
1299	>	case '\0':
1300	>	sampcnt = atoi(argv[++a]);
1301	>	if (sampcnt <= 0)
1302	>	goto userr;
1303	>	na = 0;         /* we re-add this later */
1304	>	continue;
1305	>	}
1306	>	break;
1307		case 'I':               /* only for pass-through mode */
1308		case 'i':
1309		iropt = argv[a];
1310		na = 0;
1311		continue;
1312		case 'w':               /* options without arguments */
1313	<	if (!argv[a][2] || strchr("+1tTyY", argv[a][2]) == NULL)
1314	<	verbose = -1;
1313	>	if (!argv[a][2])
1314	>	verbose ^= NOWARN;
1315	>	else if (strchr("+1tTyY", argv[a][2]) != NULL)
1316	>	verbose &= ~NOWARN;
1317	>	else
1318	>	verbose |= NOWARN;
1319		break;
1320		case 'V':
1321		case 'u':
#	Line 1308 | Line 1325 | main(int argc, char *argv[])
1325		case 'n':               /* options with 1 argument */
1326		case 's':
1327		case 'o':
1328	+	case 't':
1329		na = 2;
1330		break;
1331		case 'b':               /* special case */
#	Line 1402 | Line 1420 | main(int argc, char *argv[])
1420		curmod[0] = '\0';
1421		if (load_scene(sendfn, add_send_object) < 0)
1422		return(1);
1423	<	if ((nsbins = prepare_sampler()) <= 0)
1423	>	if ((nsbins = prepare_sampler(&curparams)) <= 0)
1424		return(1);
1425		CHECKARGC(3);                   /* add row count and octree */
1426		rcarg[nrcargs++] = "-y";
#	Line 1417 | Line 1435 | main(int argc, char *argv[])
1435		#ifdef getc_unlocked
1436		flockfile(rcfp);
1437		#endif
1438	<	if (verbose > 0) {
1438	>	if (verbose & VERBO) {
1439		fprintf(stderr, "%s: sampling %d directions", progname, nsbins);
1440		if (curparams.nsurfs > 1)
1441		fprintf(stderr, " (%d elements)\n", curparams.nsurfs);

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines (old)
>	Changed lines (new)