11 |
|
#include <stdlib.h> |
12 |
|
#include "rtio.h" |
13 |
|
#include "rtmath.h" |
14 |
+ |
#include "rtprocess.h" |
15 |
|
#include "bsdf.h" |
16 |
|
#include "bsdf_m.h" |
17 |
|
#include "random.h" |
402 |
|
fputs(": undefined normal for hemisphere sampling\n", stderr); |
403 |
|
exit(1); |
404 |
|
} |
405 |
< |
if (normalize(curparams.vup) == 0) |
405 |
> |
if (normalize(curparams.vup) == 0) { |
406 |
|
if (fabs(curparams.nrm[2]) < .7) |
407 |
|
curparams.vup[2] = 1; |
408 |
|
else |
409 |
|
curparams.vup[1] = 1; |
410 |
+ |
} |
411 |
|
/* determine sample type/bin */ |
412 |
|
if (tolower(curparams.hemis[0]) == 'u' | curparams.hemis[0] == '1') { |
413 |
|
binv = "0"; /* uniform sampling -- one bin */ |
421 |
|
exit(1); |
422 |
|
} |
423 |
|
calfn = shirchiufn; shirchiufn = NULL; |
424 |
< |
sprintf(sbuf, "SCdim=%d,Nx=%g,Ny=%g,Nz=%g,Ux=%g,Uy=%g,Uz=%g", |
424 |
> |
sprintf(sbuf, "SCdim=%d,rNx=%g,rNy=%g,rNz=%g,Ux=%g,Uy=%g,Uz=%g", |
425 |
|
curparams.hsiz, |
426 |
|
curparams.nrm[0], curparams.nrm[1], curparams.nrm[2], |
427 |
|
curparams.vup[0], curparams.vup[1], curparams.vup[2]); |
431 |
|
} else if ((tolower(curparams.hemis[0]) == 'r') | |
432 |
|
(tolower(curparams.hemis[0]) == 't')) { |
433 |
|
calfn = reinhfn; reinhfn = NULL; |
434 |
< |
sprintf(sbuf, "MF=%d,Nx=%g,Ny=%g,Nz=%g,Ux=%g,Uy=%g,Uz=%g", |
434 |
> |
sprintf(sbuf, "MF=%d,rNx=%g,rNy=%g,rNz=%g,Ux=%g,Uy=%g,Uz=%g", |
435 |
|
curparams.hsiz, |
436 |
|
curparams.nrm[0], curparams.nrm[1], curparams.nrm[2], |
437 |
|
curparams.vup[0], curparams.vup[1], curparams.vup[2]); |
608 |
|
} |
609 |
|
ptp->ntris = 0; |
610 |
|
v2l->p = (void *)ptp; |
611 |
< |
if (!polyTriangulate(v2l, add_triangle)) |
611 |
> |
if (!polyTriangulate(v2l, add_triangle)) { |
612 |
> |
fprintf(stderr, |
613 |
> |
"%s: cannot triangulate polygon '%s'\n", |
614 |
> |
progname, sp->sname); |
615 |
|
return(0); |
616 |
+ |
} |
617 |
|
for (i = ptp->ntris; i--; ) { |
618 |
|
int a = ptp->tri[i].vndx[0]; |
619 |
|
int b = ptp->tri[i].vndx[1]; |
662 |
|
/* special case for lone surface */ |
663 |
|
if (p->nsurfs == 1) { |
664 |
|
sp = p->slist; |
665 |
< |
if (DOT(sp->snrm, rdir) >= -FTINY) |
666 |
< |
return(0); /* behind surface! */ |
665 |
> |
if (DOT(sp->snrm, rdir) >= -FTINY) { |
666 |
> |
fprintf(stderr, |
667 |
> |
"%s: internal - sample behind sender '%s'\n", |
668 |
> |
progname, sp->sname); |
669 |
> |
return(0); |
670 |
> |
} |
671 |
|
return((*orig_in_surf[sp->styp])(orig, sp, x)); |
672 |
|
} |
673 |
|
if (p->nsurfs > nall) { /* (re)allocate surface area cache */ |
681 |
|
projsa[i] = -DOT(sp->snrm, rdir) * sp->area; |
682 |
|
tarea += projsa[i] *= (double)(projsa[i] > FTINY); |
683 |
|
} |
684 |
< |
if (tarea <= FTINY) /* wrong side of sender? */ |
684 |
> |
if (tarea <= FTINY) { /* wrong side of sender? */ |
685 |
> |
fputs(progname, stderr); |
686 |
> |
fputs(": internal - sample behind all sender elements!\n", |
687 |
> |
stderr); |
688 |
|
return(0); |
689 |
+ |
} |
690 |
|
tarea *= x; /* get surface from list */ |
691 |
|
for (i = 0, sp = p->slist; tarea > projsa[i]; sp = sp->next) |
692 |
|
tarea -= projsa[i++]; |
759 |
|
#define T_NALT 7 |
760 |
|
static const int tnaz[T_NALT] = {30, 30, 24, 24, 18, 12, 6}; |
761 |
|
const int RowMax = T_NALT*p->hsiz + 1; |
762 |
< |
const double RAH = (.25*PI)/(RowMax-.5); |
762 |
> |
const double RAH = (.5*PI)/(RowMax-.5); |
763 |
|
#define rnaz(r) (r >= RowMax-1 ? 1 : p->hsiz*tnaz[r/p->hsiz]) |
764 |
|
int n = sampcnt; |
765 |
|
int row, col; |
784 |
|
SDmultiSamp(samp3, 3, (n+frandom())/sampcnt); |
785 |
|
alt = (row+samp3[1])*RAH; |
786 |
|
azi = (2.*PI)*(col+samp3[2]-.5)/rnaz(row); |
787 |
< |
duvw[2] = tcos(alt); /* measured from horizon */ |
787 |
> |
duvw[2] = cos(alt); /* measured from horizon */ |
788 |
|
duvw[0] = tcos(azi)*duvw[2]; |
789 |
|
duvw[1] = tsin(azi)*duvw[2]; |
790 |
|
duvw[2] = sqrt(1. - duvw[2]*duvw[2]); |
874 |
|
fputs(": undefined normal for sender sampling\n", stderr); |
875 |
|
return(-1); |
876 |
|
} |
877 |
< |
if (normalize(curparams.vup) == 0) |
877 |
> |
if (normalize(curparams.vup) == 0) { |
878 |
|
if (fabs(curparams.nrm[2]) < .7) |
879 |
|
curparams.vup[2] = 1; |
880 |
|
else |
881 |
|
curparams.vup[1] = 1; |
882 |
+ |
} |
883 |
|
VCROSS(curparams.udir, curparams.vup, curparams.nrm); |
884 |
|
if (normalize(curparams.udir) == 0) { |
885 |
|
fputs(progname, stderr); |
1003 |
|
case ST_SOURCE: |
1004 |
|
if (snew->nfargs != 4) |
1005 |
|
goto badcount; |
1006 |
< |
VCOPY(snew->snrm, snew->farg); |
1006 |
> |
for (n = 3; n--; ) /* need to reverse "normal" */ |
1007 |
> |
snew->snrm[n] = -snew->farg[n]; |
1008 |
|
if (normalize(snew->snrm) == 0) |
1009 |
|
goto badnorm; |
1010 |
|
snew->area = sin((PI/180./2.)*snew->farg[3]); |
1023 |
|
curparams.nsurfs++; |
1024 |
|
return; |
1025 |
|
badcount: |
1026 |
< |
fprintf(stderr, "%s: bad argument count for surface '%s'\n", |
1026 |
> |
fprintf(stderr, "%s: bad argument count for surface element '%s'\n", |
1027 |
|
progname, oname); |
1028 |
|
exit(1); |
1029 |
|
badnorm: |
1030 |
< |
fprintf(stderr, "%s: bad orientation for surface '%s'\n", |
1030 |
> |
fprintf(stderr, "%s: bad orientation for surface element '%s'\n", |
1031 |
|
progname, oname); |
1032 |
|
exit(1); |
1033 |
|
} |
1067 |
|
return(1); |
1068 |
|
} |
1069 |
|
/* else skip arguments */ |
1070 |
< |
if (!fscanf(fp, "%d", &n)) return; |
1070 |
> |
if (!fscanf(fp, "%d", &n)) return(0); |
1071 |
|
while (n-- > 0) fscanf(fp, "%*s"); |
1072 |
< |
if (!fscanf(fp, "%d", &n)) return; |
1072 |
> |
if (!fscanf(fp, "%d", &n)) return(0); |
1073 |
|
while (n-- > 0) fscanf(fp, "%*d"); |
1074 |
< |
if (!fscanf(fp, "%d", &n)) return; |
1074 |
> |
if (!fscanf(fp, "%d", &n)) return(0); |
1075 |
|
while (n-- > 0) fscanf(fp, "%*f"); |
1076 |
|
return(0); |
1077 |
|
} |
1103 |
|
return(0); |
1104 |
|
} |
1105 |
|
/* else skip arguments */ |
1106 |
< |
if (!fscanf(fp, "%d", &n)) return; |
1106 |
> |
if (!fscanf(fp, "%d", &n)) return(0); |
1107 |
|
while (n-- > 0) fscanf(fp, "%*s"); |
1108 |
< |
if (!fscanf(fp, "%d", &n)) return; |
1108 |
> |
if (!fscanf(fp, "%d", &n)) return(0); |
1109 |
|
while (n-- > 0) fscanf(fp, "%*d"); |
1110 |
< |
if (!fscanf(fp, "%d", &n)) return; |
1110 |
> |
if (!fscanf(fp, "%d", &n)) return(0); |
1111 |
|
while (n-- > 0) fscanf(fp, "%*f"); |
1112 |
|
return(0); |
1113 |
|
} |
1150 |
|
strcat(newparams, inpbuf); |
1151 |
|
continue; |
1152 |
|
} |
1153 |
< |
while ((c = getc(fp)) != EOF && c != '\n'); |
1153 |
> |
while ((c = getc(fp)) != EOF && c != '\n') |
1154 |
|
; /* else skipping comment */ |
1155 |
|
continue; |
1156 |
|
} |
1175 |
|
{ |
1176 |
|
char fmtopt[6] = "-faa"; /* default output is ASCII */ |
1177 |
|
char *xrs=NULL, *yrs=NULL, *ldopt=NULL; |
1178 |
+ |
char *iropt = NULL; |
1179 |
|
char *sendfn; |
1180 |
|
char sampcntbuf[32], nsbinbuf[32]; |
1181 |
|
FILE *rcfp; |
1223 |
|
goto userr; |
1224 |
|
na = 0; /* we re-add this later */ |
1225 |
|
continue; |
1226 |
+ |
case 'I': /* only for pass-through mode */ |
1227 |
+ |
case 'i': |
1228 |
+ |
iropt = argv[a]; |
1229 |
+ |
na = 0; |
1230 |
+ |
continue; |
1231 |
|
case 'V': /* options without arguments */ |
1232 |
|
case 'w': |
1233 |
|
case 'u': |
1212 |
– |
case 'i': |
1234 |
|
case 'h': |
1235 |
|
case 'r': |
1236 |
|
break; |
1278 |
|
if (sendfn[0] == '-') { /* user wants pass-through mode? */ |
1279 |
|
if (sendfn[1]) goto userr; |
1280 |
|
sendfn = NULL; |
1281 |
+ |
if (iropt) { |
1282 |
+ |
CHECKARGC(1); |
1283 |
+ |
rcarg[nrcargs++] = iropt; |
1284 |
+ |
} |
1285 |
|
if (xrs) { |
1286 |
|
CHECKARGC(2); |
1287 |
|
rcarg[nrcargs++] = "-x"; |
1297 |
|
rcarg[nrcargs++] = ldopt; |
1298 |
|
} |
1299 |
|
if (sampcnt <= 0) sampcnt = 1; |
1300 |
< |
} else { /* else FVECT determines input format */ |
1300 |
> |
} else { /* else in sampling mode */ |
1301 |
> |
if (iropt) { |
1302 |
> |
fputs(progname, stderr); |
1303 |
> |
fputs(": -i, -I supported for pass-through only\n", stderr); |
1304 |
> |
return(1); |
1305 |
> |
} |
1306 |
|
fmtopt[2] = (sizeof(RREAL)==sizeof(double)) ? 'd' : 'f'; |
1307 |
|
if (sampcnt <= 0) sampcnt = 10000; |
1308 |
|
} |
1342 |
|
if (verbose) { |
1343 |
|
fprintf(stderr, "%s: sampling %d directions", progname, nsbins); |
1344 |
|
if (curparams.nsurfs > 1) |
1345 |
< |
fprintf(stderr, " (%d surfaces)\n", curparams.nsurfs); |
1345 |
> |
fprintf(stderr, " (%d elements)\n", curparams.nsurfs); |
1346 |
|
else |
1347 |
|
fputc('\n', stderr); |
1348 |
|
} |