5 |
|
* Plot 3-D BSDF output based on scattering interpolant or XML representation |
6 |
|
*/ |
7 |
|
|
8 |
– |
#include <stdio.h> |
9 |
– |
#include <string.h> |
8 |
|
#include <stdlib.h> |
9 |
+ |
#include "rtio.h" |
10 |
|
#include "paths.h" |
11 |
|
#include "rtmath.h" |
13 |
– |
#include "resolu.h" |
12 |
|
#include "bsdfrep.h" |
13 |
|
|
14 |
+ |
#ifndef NINCIDENT |
15 |
|
#define NINCIDENT 37 /* number of samples/hemisphere */ |
16 |
< |
|
16 |
> |
#endif |
17 |
> |
#ifndef GRIDSTEP |
18 |
|
#define GRIDSTEP 2 /* our grid step size */ |
19 |
+ |
#endif |
20 |
|
#define SAMPRES (GRIDRES/GRIDSTEP) |
21 |
|
|
22 |
|
int front_comp = 0; /* front component flags (SDsamp*) */ |
25 |
|
double min_log10; /* smallest log10 value for plotting */ |
26 |
|
double overall_max = .0; /* overall maximum BSDF value */ |
27 |
|
|
28 |
< |
char ourTempDir[TEMPLEN] = ""; /* our temporary directory */ |
28 |
> |
char ourTempDir[TEMPLEN+1] = ""; /* our temporary directory */ |
29 |
|
|
30 |
|
const char frpref[] = "rf"; |
31 |
|
const char ftpref[] = "tf"; |
41 |
|
#define bsdf_rad (sph_rad*.25) |
42 |
|
#define arrow_rad (bsdf_rad*.015) |
43 |
|
|
44 |
< |
#define FEQ(a,b) ((a)-(b) <= 1e-7 && (b)-(a) <= 1e-7) |
44 |
> |
#define set_minlog() overall_min = (overall_min < 1e-5) ? 1e-5 : overall_min; \ |
45 |
> |
min_log10 = log10(overall_min) - .1 |
46 |
|
|
45 |
– |
#define set_minlog() (min_log10 = log10(overall_min + 1e-5) - .1) |
46 |
– |
|
47 |
|
char *progname; |
48 |
|
|
49 |
|
/* Get Fibonacci sphere vector (0 to NINCIDENT-1) */ |
76 |
|
static char * |
77 |
|
tfile_name(const char *prefix, const char *suffix, int i) |
78 |
|
{ |
79 |
< |
static char buf[128]; |
79 |
> |
static char buf[256]; |
80 |
|
|
81 |
|
if (!ourTempDir[0]) { /* create temporary directory */ |
82 |
|
mktemp(strcpy(ourTempDir,TEMPLATE)); |
144 |
|
SDValue sval; |
145 |
|
double bsdf; |
146 |
|
ovec_from_pos(ovec, i*GRIDSTEP, j*GRIDSTEP); |
147 |
< |
if (SDreportError(SDevalBSDF(&sval, ovec, |
148 |
< |
ivec, sd), stderr)) |
147 |
> |
if (SDreportError(SDevalBSDF(&sval, ivec, |
148 |
> |
ovec, sd), stderr)) |
149 |
|
return(0); |
150 |
|
if (sval.cieY > overall_max) |
151 |
|
overall_max = sval.cieY; |
274 |
|
{ |
275 |
|
const double arrow_len = 1.2*bsdf_rad; |
276 |
|
const double tip_len = 0.2*bsdf_rad; |
277 |
+ |
static int cnt = 1; |
278 |
|
FVECT refl; |
279 |
|
int i; |
280 |
|
|
282 |
|
refl[1] = 2.*nrm[2]*nrm[1]; |
283 |
|
refl[2] = 2.*nrm[2]*nrm[2] - 1.; |
284 |
|
|
285 |
< |
printf("\n# Mirror arrow\n"); |
286 |
< |
printf("\narrow_mat cylinder inc_dir\n0\n0\n7"); |
285 |
> |
printf("\n# Mirror arrow #%d\n", cnt); |
286 |
> |
printf("\nshaft_mat cylinder inc_dir%d\n0\n0\n7", cnt); |
287 |
|
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
288 |
|
origin[0], origin[1], origin[2]+arrow_len, |
289 |
|
origin[0], origin[1], origin[2], |
290 |
|
arrow_rad); |
291 |
< |
printf("\narrow_mat cylinder mir_dir\n0\n0\n7"); |
291 |
> |
printf("\nshaft_mat cylinder mir_dir%d\n0\n0\n7", cnt); |
292 |
|
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
293 |
|
origin[0], origin[1], origin[2], |
294 |
|
origin[0] + arrow_len*refl[0], |
295 |
|
origin[1] + arrow_len*refl[1], |
296 |
|
origin[2] + arrow_len*refl[2], |
297 |
|
arrow_rad); |
298 |
< |
printf("\narrow_mat cone mir_tip\n0\n0\n8"); |
298 |
> |
printf("\ntip_mat cone mir_tip%d\n0\n0\n8", cnt); |
299 |
|
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", |
300 |
|
origin[0] + (arrow_len-.5*tip_len)*refl[0], |
301 |
|
origin[1] + (arrow_len-.5*tip_len)*refl[1], |
304 |
|
origin[1] + (arrow_len+.5*tip_len)*refl[1], |
305 |
|
origin[2] + (arrow_len+.5*tip_len)*refl[2], |
306 |
|
2.*arrow_rad); |
307 |
+ |
++cnt; |
308 |
|
} |
309 |
|
|
310 |
|
/* Put out transmitted direction arrow for the given incident vector */ |
313 |
|
{ |
314 |
|
const double arrow_len = 1.2*bsdf_rad; |
315 |
|
const double tip_len = 0.2*bsdf_rad; |
316 |
+ |
static int cnt = 1; |
317 |
|
int i; |
318 |
|
|
319 |
< |
printf("\n# Transmission arrow\n"); |
320 |
< |
printf("\narrow_mat cylinder trans_dir\n0\n0\n7"); |
319 |
> |
printf("\n# Transmission arrow #%d\n", cnt); |
320 |
> |
printf("\nshaft_mat cylinder trans_dir%d\n0\n0\n7", cnt); |
321 |
|
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
322 |
|
origin[0], origin[1], origin[2], |
323 |
|
origin[0], origin[1], origin[2]-arrow_len, |
324 |
|
arrow_rad); |
325 |
< |
printf("\narrow_mat cone trans_tip\n0\n0\n8"); |
325 |
> |
printf("\ntip_mat cone trans_tip%d\n0\n0\n8", cnt); |
326 |
|
printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", |
327 |
|
origin[0], origin[1], origin[2]-arrow_len+.5*tip_len, |
328 |
|
origin[0], origin[1], origin[2]-arrow_len-.5*tip_len, |
329 |
< |
2.*arrow_rad); |
329 |
> |
2.*arrow_rad); |
330 |
> |
++cnt; |
331 |
|
} |
332 |
|
|
333 |
|
/* Compute rotation (x,y,z) => (xp,yp,zp) */ |
346 |
|
return(4); |
347 |
|
} |
348 |
|
theta = atan2(yp[2], zp[2]); |
349 |
< |
if (!FEQ(theta,0.0)) { |
349 |
> |
if (!FABSEQ(theta,0.0)) { |
350 |
|
sprintf(xf, " -rx %f", theta*(180./PI)); |
351 |
|
while (*xf) ++xf; |
352 |
|
n += 2; |
353 |
|
} |
354 |
|
theta = Asin(-xp[2]); |
355 |
< |
if (!FEQ(theta,0.0)) { |
355 |
> |
if (!FABSEQ(theta,0.0)) { |
356 |
|
sprintf(xf, " -ry %f", theta*(180./PI)); |
357 |
|
while (*xf) ++xf; |
358 |
|
n += 2; |
359 |
|
} |
360 |
|
theta = atan2(xp[1], xp[0]); |
361 |
< |
if (!FEQ(theta,0.0)) { |
361 |
> |
if (!FABSEQ(theta,0.0)) { |
362 |
|
sprintf(xf, " -rz %f", theta*(180./PI)); |
363 |
|
/* while (*xf) ++xf; */ |
364 |
|
n += 2; |
382 |
|
printf("\n# Gensurf output corresponding to %d incident directions\n", |
383 |
|
NINCIDENT); |
384 |
|
|
385 |
< |
printf("\nvoid glow arrow_glow\n0\n0\n4 1 0 1 0\n"); |
386 |
< |
printf("\nvoid mixfunc arrow_mat\n4 arrow_glow void 0.25 .\n0\n0\n"); |
385 |
> |
printf("\nvoid glow tip_mat\n0\n0\n4 1 0 1 0\n"); |
386 |
> |
printf("\nvoid mixfunc shaft_mat\n4 tip_mat void 0.25 .\n0\n0\n"); |
387 |
|
|
388 |
|
for (i = 0; i < NINCIDENT; i++) { |
389 |
|
get_ivector(ivec, i); |
474 |
|
} |
475 |
|
switch (XMLfile[0]) { /* avoid RAYPATH search */ |
476 |
|
case '.': |
477 |
+ |
case '~': |
478 |
|
CASEDIRSEP: |
479 |
|
curdir = ""; |
480 |
|
break; |
516 |
|
if (front_comp) { |
517 |
|
printf( |
518 |
|
"\n!genrev %s Front \"R*sin(A*t)\" \"R*cos(A*t)\" %d -e \"R:%g;A:%f\" -s | xform -t %g 0 0\n", |
519 |
< |
sph_fmat, nsegs, sph_rad, 0.495*PI, sph_xoffset); |
519 |
> |
sph_fmat, nsegs, sph_rad, 0.5*PI, sph_xoffset); |
520 |
|
printf("\nvoid brighttext front_text\n3 helvet.fnt . FRONT\n0\n"); |
521 |
|
printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", |
522 |
|
-.22*sph_rad + sph_xoffset, -1.4*sph_rad, |
532 |
|
if (back_comp) { |
533 |
|
printf( |
534 |
|
"\n!genrev %s Back \"R*cos(A*t)\" \"R*sin(A*t)\" %d -e \"R:%g;A:%f\" -s | xform -t %g 0 0\n", |
535 |
< |
sph_bmat, nsegs, sph_rad, 0.495*PI, -sph_xoffset); |
535 |
> |
sph_bmat, nsegs, sph_rad, 0.5*PI, -sph_xoffset); |
536 |
|
printf("\nvoid brighttext back_text\n3 helvet.fnt . BACK\n0\n"); |
537 |
|
printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", |
538 |
|
-.22*sph_rad - sph_xoffset, -1.4*sph_rad, |
672 |
|
static int |
673 |
|
rbf_headline(char *s, void *p) |
674 |
|
{ |
675 |
< |
char fmt[64]; |
675 |
> |
char fmt[MAXFMTLEN]; |
676 |
|
|
677 |
|
if (formatval(fmt, s)) { |
678 |
|
if (strcmp(fmt, BSDFREP_FMT)) |
706 |
|
main(int argc, char *argv[]) |
707 |
|
{ |
708 |
|
int inpXML = -1; |
709 |
+ |
double myLim[2]; |
710 |
|
SDData myBSDF; |
711 |
< |
int n; |
711 |
> |
int a, n; |
712 |
|
/* check arguments */ |
713 |
|
progname = argv[0]; |
714 |
< |
if (argc > 1 && (n = strlen(argv[1])-4) > 0) { |
715 |
< |
if (!strcasecmp(argv[1]+n, ".xml")) |
714 |
> |
a = 1; |
715 |
> |
myLim[0] = -1; myLim[1] = -2; /* specified BSDF range? */ |
716 |
> |
if (argc > a+3 && argv[a][0] == '-' && argv[a][1] == 'r') { |
717 |
> |
myLim[0] = atof(argv[++a]); |
718 |
> |
myLim[1] = atof(argv[++a]); |
719 |
> |
++a; |
720 |
> |
} |
721 |
> |
if (argc > a && (n = strlen(argv[a])-4) > 0) { |
722 |
> |
if (!strcasecmp(argv[a]+n, ".xml")) |
723 |
|
inpXML = 1; |
724 |
< |
else if (!strcasecmp(argv[1]+n, ".sir")) |
724 |
> |
else if (!strcasecmp(argv[a]+n, ".sir")) |
725 |
|
inpXML = 0; |
726 |
|
} |
727 |
< |
if (inpXML < 0 || inpXML & (argc > 2)) { |
728 |
< |
fprintf(stderr, "Usage: %s bsdf.xml > output.rad\n", progname); |
729 |
< |
fprintf(stderr, " Or: %s hemi1.sir hemi2.sir .. > output.rad\n", progname); |
727 |
> |
if (inpXML < 0 || inpXML & (argc > a+1)) { |
728 |
> |
fprintf(stderr, "Usage: %s [-r min max] bsdf.xml > output.rad\n", progname); |
729 |
> |
fprintf(stderr, " Or: %s [-r min max] hemi1.sir hemi2.sir .. > output.rad\n", progname); |
730 |
|
return(1); |
731 |
|
} |
732 |
|
fputs("# ", stdout); /* copy our command */ |
733 |
|
printargs(argc, argv, stdout); |
734 |
|
/* evaluate BSDF */ |
735 |
|
if (inpXML) { |
736 |
< |
SDclearBSDF(&myBSDF, argv[1]); |
737 |
< |
if (SDreportError(SDloadFile(&myBSDF, argv[1]), stderr)) |
736 |
> |
SDclearBSDF(&myBSDF, argv[a]); |
737 |
> |
if (SDreportError(SDloadFile(&myBSDF, argv[a]), stderr)) |
738 |
|
return(1); |
739 |
|
if (myBSDF.rf != NULL) front_comp |= SDsampR; |
740 |
|
if (myBSDF.tf != NULL) front_comp |= SDsampT; |
742 |
|
if (myBSDF.tb != NULL) back_comp |= SDsampT; |
743 |
|
if (!front_comp & !back_comp) { |
744 |
|
fprintf(stderr, "%s: nothing to plot in '%s'\n", |
745 |
< |
progname, argv[1]); |
745 |
> |
progname, argv[a]); |
746 |
|
return(1); |
747 |
|
} |
748 |
< |
if (front_comp & SDsampR && myBSDF.rLambFront.cieY < overall_min*PI) |
749 |
< |
overall_min = myBSDF.rLambFront.cieY/PI; |
750 |
< |
if (back_comp & SDsampR && myBSDF.rLambBack.cieY < overall_min*PI) |
751 |
< |
overall_min = myBSDF.rLambBack.cieY/PI; |
752 |
< |
if ((front_comp|back_comp) & SDsampT && |
753 |
< |
myBSDF.tLamb.cieY < overall_min*PI) |
754 |
< |
overall_min = myBSDF.tLamb.cieY/PI; |
748 |
> |
if (myLim[0] >= 0) |
749 |
> |
overall_min = myLim[0]; |
750 |
> |
else { |
751 |
> |
if (front_comp & SDsampR && myBSDF.rLambFront.cieY < overall_min*PI) |
752 |
> |
overall_min = myBSDF.rLambFront.cieY/PI; |
753 |
> |
if (back_comp & SDsampR && myBSDF.rLambBack.cieY < overall_min*PI) |
754 |
> |
overall_min = myBSDF.rLambBack.cieY/PI; |
755 |
> |
if (front_comp & SDsampT && myBSDF.tLambFront.cieY < overall_min*PI) |
756 |
> |
overall_min = myBSDF.tLambFront.cieY/PI; |
757 |
> |
if (back_comp & SDsampT && myBSDF.tLambBack.cieY < overall_min*PI) |
758 |
> |
overall_min = myBSDF.tLambBack.cieY/PI; |
759 |
> |
} |
760 |
|
set_minlog(); |
761 |
|
if (!build_wBSDF(&myBSDF)) |
762 |
|
return(1); |
765 |
|
else |
766 |
|
strcpy(bsdf_name, myBSDF.name); |
767 |
|
strcpy(bsdf_manuf, myBSDF.makr); |
768 |
< |
put_matBSDF(argv[1]); |
768 |
> |
put_matBSDF(argv[a]); |
769 |
|
} else { |
770 |
< |
FILE *fp; |
771 |
< |
for (n = 1; n < argc; n++) { |
772 |
< |
fp = fopen(argv[n], "rb"); |
773 |
< |
if (fp == NULL) { |
770 |
> |
FILE *fp[4]; |
771 |
> |
if (argc > a+4) { |
772 |
> |
fprintf(stderr, "%s: more than 4 hemispheres!\n", progname); |
773 |
> |
return(1); |
774 |
> |
} |
775 |
> |
for (n = a; n < argc; n++) { |
776 |
> |
fp[n-a] = fopen(argv[n], "rb"); |
777 |
> |
if (fp[n-a] == NULL) { |
778 |
|
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
779 |
|
progname, argv[n]); |
780 |
|
return(1); |
781 |
|
} |
782 |
< |
if (getheader(fp, rbf_headline, NULL) < 0) { |
782 |
> |
if (getheader(fp[n-a], rbf_headline, NULL) < 0) { |
783 |
|
fprintf(stderr, "%s: bad BSDF interpolant '%s'\n", |
784 |
|
progname, argv[n]); |
785 |
|
return(1); |
786 |
|
} |
765 |
– |
fclose(fp); |
787 |
|
} |
788 |
+ |
if (myLim[0] >= 0) |
789 |
+ |
overall_min = myLim[0]; |
790 |
|
set_minlog(); |
791 |
< |
for (n = 1; n < argc; n++) { |
792 |
< |
fp = fopen(argv[n], "rb"); |
793 |
< |
if (!load_bsdf_rep(fp)) |
791 |
> |
for (n = a; n < argc; n++) { |
792 |
> |
if (fseek(fp[n-a], 0L, SEEK_SET) < 0) { |
793 |
> |
fprintf(stderr, "%s: cannot seek on '%s'\n", |
794 |
> |
progname, argv[n]); |
795 |
|
return(1); |
796 |
< |
fclose(fp); |
796 |
> |
} |
797 |
> |
if (!load_bsdf_rep(fp[n-a])) |
798 |
> |
return(1); |
799 |
> |
fclose(fp[n-a]); |
800 |
|
if (!build_wRBF()) |
801 |
|
return(1); |
802 |
|
} |
803 |
|
put_matBSDF(NULL); |
804 |
|
} |
805 |
+ |
if (myLim[1] > myLim[0]) /* override maximum BSDF? */ |
806 |
+ |
overall_max = myLim[1]; |
807 |
|
put_source(); /* before hemispheres & labels */ |
808 |
|
put_hemispheres(); |
809 |
|
put_scale(); |
810 |
|
if (inpXML && myBSDF.mgf) |
811 |
|
convert_mgf(myBSDF.mgf); |
812 |
< |
if (!put_BSDFs()) |
812 |
> |
if (!put_BSDFs()) /* most of the output happens here */ |
813 |
|
return(1); |
814 |
|
cleanup_tmp(); |
815 |
|
return(0); |