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

Comparing ray/src/util/rfluxmtx.c (file contents):
Revision 2.62 by greg, Mon Oct 20 18:55:19 2025 UTC vs.
Revision 2.63 by greg, Mon Oct 20 19:01:32 2025 UTC

#	Line 908 | Line 908 | sample_klems(PARAMS *p, int b, FILE *fp)
908		static int
909		prepare_sampler(PARAMS *p)
910		{
911	<	if (p->slist == NULL) {         /* missing sample surface! */
912	<	error(USER, "no sender surface");
911	>	if (p->slist == NULL) { /* missing sample surface! */
912	>	fputs(progname, stderr);
913	>	fputs(": no sender surface!\n", stderr);
914		return(-1);
915		}
916		/* misplaced output file spec. */
917	<	if (p->outfn[0]) {
918	<	sprintf(errmsg, "ignoring output file in sender ('%s')",
919	<	p->outfn);
919	<	error(WARNING, errmsg);
920	<	}
917	>	if ((p->outfn != NULL) & !(verbose & NOWARN))
918	>	fprintf(stderr, "%s: warning - ignoring output file in sender ('%s')\n",
919	>	progname, p->outfn);
920		/* check/set basis hemisphere */
921		if (!p->hemis[0]) {
922	<	error(USER, "missing sender sampling type");
922	>	fputs(progname, stderr);
923	>	fputs(": missing sender sampling type!\n", stderr);
924		return(-1);
925		}
926		if (normalize(p->nrm) == 0) {
927	<	error(USER, "undefined normal for sender sampling");
927	>	fputs(progname, stderr);
928	>	fputs(": undefined normal for sender sampling\n", stderr);
929		return(-1);
930		}
931		if (normalize(p->vup) == 0) {
#	Line 935 | Line 936 | prepare_sampler(PARAMS *p)
936		}
937		fcross(p->udir, p->vup, p->nrm);
938		if (normalize(p->udir) == 0) {
939	<	error(USER, "up vector coincides with sender normal");
939	>	fputs(progname, stderr);
940	>	fputs(": up vector coincides with sender normal\n", stderr);
941		return(-1);
942		}
943		fcross(p->vdir, p->nrm, p->udir);
944	<	if (p->sign == '-') {           /* left-handed coordinate system? */
944	>	if (p->sign == '-') {   /* left-handed coordinate system? */
945		p->udir[0] *= -1.;
946		p->udir[1] *= -1.;
947		p->udir[2] *= -1.;

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