10 |
|
* |
11 |
|
*/ |
12 |
|
|
13 |
+ |
#define _USE_MATH_DEFINES |
14 |
|
#include <stdio.h> |
15 |
|
#include <stdlib.h> |
16 |
+ |
#include <string.h> |
17 |
|
#include <math.h> |
18 |
+ |
#include <ctype.h> |
19 |
|
#include "ezxml.h" |
20 |
|
#include "hilbert.h" |
21 |
|
#include "bsdf.h" |
109 |
|
if ((geom = ezxml_child(wdb, "Geometry")) == NULL || |
110 |
|
(mgfstr = ezxml_txt(geom)) == NULL) |
111 |
|
return SDEnone; |
112 |
+ |
while (isspace(*mgfstr)) |
113 |
+ |
++mgfstr; |
114 |
+ |
if (!*mgfstr) |
115 |
+ |
return SDEnone; |
116 |
|
if ((fmt = ezxml_attr(geom, "format")) != NULL && |
117 |
|
strcasecmp(fmt, "MGF")) { |
118 |
|
sprintf(SDerrorDetail, |
171 |
|
} |
172 |
|
/* load geometry if present */ |
173 |
|
lastErr = SDloadGeometry(sd, ezxml_child(wtl, "Material")); |
174 |
< |
if (lastErr) |
174 |
> |
if (lastErr) { |
175 |
> |
ezxml_free(fl); |
176 |
|
return lastErr; |
177 |
+ |
} |
178 |
|
/* try loading variable resolution data */ |
179 |
|
lastErr = SDloadTre(sd, wtl); |
180 |
|
/* check our result */ |
181 |
< |
switch (lastErr) { |
173 |
< |
case SDEformat: |
174 |
< |
case SDEdata: |
175 |
< |
case SDEsupport: /* possibly we just tried the wrong format */ |
181 |
> |
if (lastErr == SDEsupport) /* try matrix BSDF if not tree data */ |
182 |
|
lastErr = SDloadMtx(sd, wtl); |
183 |
< |
break; |
178 |
< |
default: /* variable res. OK else serious error */ |
179 |
< |
break; |
180 |
< |
} |
183 |
> |
|
184 |
|
/* done with XML file */ |
185 |
|
ezxml_free(fl); |
186 |
|
|
252 |
|
return; |
253 |
|
SDfreeCumulativeCache(df); |
254 |
|
for (n = df->ncomp; n-- > 0; ) |
255 |
< |
(*df->comp[n].func->freeSC)(df->comp[n].dist); |
255 |
> |
if (df->comp[n].dist != NULL) |
256 |
> |
(*df->comp[n].func->freeSC)(df->comp[n].dist); |
257 |
|
free(df); |
258 |
|
} |
259 |
|
|
409 |
|
|
410 |
|
/* Sample an individual BSDF component */ |
411 |
|
SDError |
412 |
< |
SDsampComponent(SDValue *sv, FVECT outVec, const FVECT inVec, |
409 |
< |
double randX, SDComponent *sdc) |
412 |
> |
SDsampComponent(SDValue *sv, FVECT ioVec, double randX, SDComponent *sdc) |
413 |
|
{ |
414 |
|
float coef[SDmaxCh]; |
415 |
|
SDError ec; |
416 |
+ |
FVECT inVec; |
417 |
|
const SDCDst *cd; |
418 |
|
double d; |
419 |
|
int n; |
420 |
|
/* check arguments */ |
421 |
< |
if ((sv == NULL) | (outVec == NULL) | (inVec == NULL) | (sdc == NULL)) |
421 |
> |
if ((sv == NULL) | (ioVec == NULL) | (sdc == NULL)) |
422 |
|
return SDEargument; |
423 |
|
/* get cumulative distribution */ |
424 |
+ |
VCOPY(inVec, ioVec); |
425 |
|
cd = (*sdc->func->getCDist)(inVec, sdc); |
426 |
|
if (cd == NULL) |
427 |
|
return SDEmemory; |
428 |
< |
if (cd->cTotal <= 1e-7) { /* anything to sample? */ |
428 |
> |
if (cd->cTotal <= 1e-6) { /* anything to sample? */ |
429 |
|
sv->spec = c_dfcolor; |
430 |
|
sv->cieY = .0; |
431 |
< |
memset(outVec, 0, 3*sizeof(double)); |
431 |
> |
memset(ioVec, 0, 3*sizeof(double)); |
432 |
|
return SDEnone; |
433 |
|
} |
434 |
|
sv->cieY = cd->cTotal; |
435 |
|
/* compute sample direction */ |
436 |
< |
ec = (*sdc->func->sampCDist)(outVec, randX, cd); |
436 |
> |
ec = (*sdc->func->sampCDist)(ioVec, randX, cd); |
437 |
|
if (ec) |
438 |
|
return ec; |
439 |
|
/* get BSDF color */ |
440 |
< |
n = (*sdc->func->getBSDFs)(coef, outVec, inVec, sdc->dist); |
440 |
> |
n = (*sdc->func->getBSDFs)(coef, ioVec, inVec, sdc); |
441 |
|
if (n <= 0) { |
442 |
|
strcpy(SDerrorDetail, "BSDF sample value error"); |
443 |
|
return SDEinternal; |
500 |
|
SDError ec; |
501 |
|
int i; |
502 |
|
/* check arguments */ |
503 |
< |
if ((projSA == NULL) | (v1 == NULL)) |
503 |
> |
if ((projSA == NULL) | (v1 == NULL) | (sd == NULL)) |
504 |
|
return SDEargument; |
505 |
|
/* initialize extrema */ |
506 |
|
switch (qflags) { |
520 |
|
rdf = sd->rf; |
521 |
|
else |
522 |
|
rdf = sd->rb; |
523 |
< |
tdf = NULL; /* transmitted component? */ |
524 |
< |
if (v2 != NULL && v1[2] > 0 ^ v2[2] > 0) { |
525 |
< |
rdf = NULL; |
526 |
< |
tdf = sd->tf; |
527 |
< |
} |
523 |
> |
tdf = sd->tf; |
524 |
> |
if (v2 != NULL) /* bidirectional? */ |
525 |
> |
if (v1[2] > 0 ^ v2[2] > 0) |
526 |
> |
rdf = NULL; |
527 |
> |
else |
528 |
> |
tdf = NULL; |
529 |
|
ec = SDEdata; /* run through components */ |
530 |
|
for (i = (rdf==NULL) ? 0 : rdf->ncomp; i--; ) { |
531 |
|
ec = (*rdf->comp[i].func->queryProjSA)(projSA, v1, v2, |
532 |
< |
qflags, rdf->comp[i].dist); |
532 |
> |
qflags, &rdf->comp[i]); |
533 |
|
if (ec) |
534 |
|
return ec; |
535 |
|
} |
536 |
|
for (i = (tdf==NULL) ? 0 : tdf->ncomp; i--; ) { |
537 |
|
ec = (*tdf->comp[i].func->queryProjSA)(projSA, v1, v2, |
538 |
< |
qflags, tdf->comp[i].dist); |
538 |
> |
qflags, &tdf->comp[i]); |
539 |
|
if (ec) |
540 |
|
return ec; |
541 |
|
} |
577 |
|
i = (sdf != NULL) ? sdf->ncomp : 0; |
578 |
|
while (i-- > 0) { |
579 |
|
nch = (*sdf->comp[i].func->getBSDFs)(coef, outVec, inVec, |
580 |
< |
sdf->comp[i].dist); |
580 |
> |
&sdf->comp[i]); |
581 |
|
while (nch-- > 0) { |
582 |
|
c_cmix(&sv->spec, sv->cieY, &sv->spec, |
583 |
|
coef[nch], &sdf->comp[i].cspec[nch]); |
632 |
|
|
633 |
|
/* Sample BSDF direction based on the given random variable */ |
634 |
|
SDError |
635 |
< |
SDsampBSDF(SDValue *sv, FVECT outVec, const FVECT inVec, |
630 |
< |
double randX, int sflags, const SDData *sd) |
635 |
> |
SDsampBSDF(SDValue *sv, FVECT ioVec, double randX, int sflags, const SDData *sd) |
636 |
|
{ |
637 |
|
SDError ec; |
638 |
+ |
FVECT inVec; |
639 |
|
int inFront; |
640 |
|
SDSpectralDF *rdf; |
641 |
|
double rdiff; |
644 |
|
SDComponent *sdc; |
645 |
|
const SDCDst **cdarr = NULL; |
646 |
|
/* check arguments */ |
647 |
< |
if ((sv == NULL) | (outVec == NULL) | (inVec == NULL) | (sd == NULL) | |
647 |
> |
if ((sv == NULL) | (ioVec == NULL) | (sd == NULL) | |
648 |
|
(randX < 0) | (randX >= 1.)) |
649 |
|
return SDEargument; |
650 |
|
/* whose side are we on? */ |
651 |
+ |
VCOPY(inVec, ioVec); |
652 |
|
inFront = (inVec[2] > 0); |
653 |
|
/* remember diffuse portions */ |
654 |
|
if (inFront) { |
687 |
|
} |
688 |
|
sv->cieY += cdarr[i]->cTotal; |
689 |
|
} |
690 |
< |
if (sv->cieY <= 1e-7) { /* anything to sample? */ |
690 |
> |
if (sv->cieY <= 1e-6) { /* anything to sample? */ |
691 |
|
sv->cieY = .0; |
692 |
< |
memset(outVec, 0, 3*sizeof(double)); |
692 |
> |
memset(ioVec, 0, 3*sizeof(double)); |
693 |
|
return SDEnone; |
694 |
|
} |
695 |
|
/* scale random variable */ |
696 |
|
randX *= sv->cieY; |
697 |
|
/* diffuse reflection? */ |
698 |
|
if (randX < rdiff) { |
699 |
< |
SDdiffuseSamp(outVec, inFront, randX/rdiff); |
699 |
> |
SDdiffuseSamp(ioVec, inFront, randX/rdiff); |
700 |
|
goto done; |
701 |
|
} |
702 |
|
randX -= rdiff; |
704 |
|
if ((sflags & SDsampDf+SDsampT) == SDsampDf+SDsampT) { |
705 |
|
if (randX < sd->tLamb.cieY) { |
706 |
|
sv->spec = sd->tLamb.spec; |
707 |
< |
SDdiffuseSamp(outVec, !inFront, randX/sd->tLamb.cieY); |
707 |
> |
SDdiffuseSamp(ioVec, !inFront, randX/sd->tLamb.cieY); |
708 |
|
goto done; |
709 |
|
} |
710 |
|
randX -= sd->tLamb.cieY; |
716 |
|
return SDEinternal; |
717 |
|
/* compute sample direction */ |
718 |
|
sdc = (i < nr) ? &rdf->comp[i] : &sd->tf->comp[i-nr]; |
719 |
< |
ec = (*sdc->func->sampCDist)(outVec, randX/cdarr[i]->cTotal, cdarr[i]); |
719 |
> |
ec = (*sdc->func->sampCDist)(ioVec, randX/cdarr[i]->cTotal, cdarr[i]); |
720 |
|
if (ec) |
721 |
|
return ec; |
722 |
|
/* compute color */ |
723 |
< |
j = (*sdc->func->getBSDFs)(coef, outVec, inVec, sdc->dist); |
723 |
> |
j = (*sdc->func->getBSDFs)(coef, ioVec, inVec, sdc); |
724 |
|
if (j <= 0) { |
725 |
|
sprintf(SDerrorDetail, "BSDF \"%s\" sampling value error", |
726 |
|
sd->name); |
817 |
|
|
818 |
|
#include "standard.h" |
819 |
|
#include "paths.h" |
813 |
– |
#include <ctype.h> |
820 |
|
|
821 |
|
#define MAXLATS 46 /* maximum number of latitudes */ |
822 |
|
|
936 |
|
{ |
937 |
|
ANGLE_BASIS *ab = (ANGLE_BASIS *)p; |
938 |
|
int li, ndx; |
939 |
< |
double pol, azi, d; |
939 |
> |
double pol, azi; |
940 |
|
|
941 |
|
if ((v[2] < -1.0) | (v[2] > 1.0)) |
942 |
|
return(-1); |
1176 |
|
) |
1177 |
|
{ |
1178 |
|
double *omega_iarr, *omega_oarr; |
1179 |
< |
double dom, contrib, hemi_total, full_total; |
1179 |
> |
double dom, hemi_total, full_total; |
1180 |
|
int nneg; |
1181 |
|
FVECT v; |
1182 |
|
int i, o; |
1326 |
|
error(WARNING, errmsg); |
1327 |
|
ezxml_free(fl); |
1328 |
|
return(NULL); |
1329 |
< |
} |
1330 |
< |
load_angle_basis(ezxml_child(ezxml_child(wtl, |
1331 |
< |
"DataDefinition"), "AngleBasis")); |
1329 |
> |
} |
1330 |
> |
for (wld = ezxml_child(ezxml_child(wtl, |
1331 |
> |
"DataDefinition"), "AngleBasis"); |
1332 |
> |
wld != NULL; wld = wld->next) |
1333 |
> |
load_angle_basis(wld); |
1334 |
|
dp = (struct BSDF_data *)calloc(1, sizeof(struct BSDF_data)); |
1335 |
|
load_geometry(dp, ezxml_child(wtl, "Material")); |
1336 |
|
for (wld = ezxml_child(wtl, "WavelengthData"); |