5 |
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* Plot 3-D BSDF output based on scattering interpolant or XML representation |
6 |
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*/ |
7 |
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|
8 |
– |
#include <stdio.h> |
9 |
– |
#include <string.h> |
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#include <stdlib.h> |
9 |
+ |
#include "rtio.h" |
10 |
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#include "paths.h" |
11 |
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#include "rtmath.h" |
13 |
– |
#include "resolu.h" |
12 |
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#include "bsdfrep.h" |
13 |
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|
14 |
+ |
#ifndef NINCIDENT |
15 |
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#define NINCIDENT 37 /* number of samples/hemisphere */ |
16 |
< |
|
16 |
> |
#endif |
17 |
> |
#ifndef GRIDSTEP |
18 |
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#define GRIDSTEP 2 /* our grid step size */ |
19 |
+ |
#endif |
20 |
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#define SAMPRES (GRIDRES/GRIDSTEP) |
21 |
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|
22 |
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int front_comp = 0; /* front component flags (SDsamp*) */ |
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double min_log10; /* smallest log10 value for plotting */ |
26 |
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double overall_max = .0; /* overall maximum BSDF value */ |
27 |
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|
28 |
< |
char ourTempDir[TEMPLEN] = ""; /* our temporary directory */ |
28 |
> |
char ourTempDir[TEMPLEN+1] = ""; /* our temporary directory */ |
29 |
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|
30 |
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const char frpref[] = "rf"; |
31 |
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const char ftpref[] = "tf"; |
78 |
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static char * |
79 |
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tfile_name(const char *prefix, const char *suffix, int i) |
80 |
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{ |
81 |
< |
static char buf[128]; |
81 |
> |
static char buf[256]; |
82 |
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|
83 |
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if (!ourTempDir[0]) { /* create temporary directory */ |
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mktemp(strcpy(ourTempDir,TEMPLATE)); |
276 |
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{ |
277 |
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const double arrow_len = 1.2*bsdf_rad; |
278 |
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const double tip_len = 0.2*bsdf_rad; |
279 |
+ |
static int cnt = 1; |
280 |
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FVECT refl; |
281 |
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int i; |
282 |
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|
284 |
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refl[1] = 2.*nrm[2]*nrm[1]; |
285 |
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refl[2] = 2.*nrm[2]*nrm[2] - 1.; |
286 |
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|
287 |
< |
printf("\n# Mirror arrow\n"); |
288 |
< |
printf("\nshaft_mat cylinder inc_dir\n0\n0\n7"); |
287 |
> |
printf("\n# Mirror arrow #%d\n", cnt); |
288 |
> |
printf("\nshaft_mat cylinder inc_dir%d\n0\n0\n7", cnt); |
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printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
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origin[0], origin[1], origin[2]+arrow_len, |
291 |
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origin[0], origin[1], origin[2], |
292 |
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arrow_rad); |
293 |
< |
printf("\nshaft_mat cylinder mir_dir\n0\n0\n7"); |
293 |
> |
printf("\nshaft_mat cylinder mir_dir%d\n0\n0\n7", cnt); |
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printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
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origin[0], origin[1], origin[2], |
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origin[0] + arrow_len*refl[0], |
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origin[1] + arrow_len*refl[1], |
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origin[2] + arrow_len*refl[2], |
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arrow_rad); |
300 |
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printf("\ntip_mat cone mir_tip\n0\n0\n8"); |
300 |
> |
printf("\ntip_mat cone mir_tip%d\n0\n0\n8", cnt); |
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printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", |
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origin[0] + (arrow_len-.5*tip_len)*refl[0], |
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origin[1] + (arrow_len-.5*tip_len)*refl[1], |
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origin[1] + (arrow_len+.5*tip_len)*refl[1], |
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origin[2] + (arrow_len+.5*tip_len)*refl[2], |
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2.*arrow_rad); |
309 |
+ |
++cnt; |
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} |
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|
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/* Put out transmitted direction arrow for the given incident vector */ |
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{ |
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const double arrow_len = 1.2*bsdf_rad; |
317 |
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const double tip_len = 0.2*bsdf_rad; |
318 |
+ |
static int cnt = 1; |
319 |
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int i; |
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|
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printf("\n# Transmission arrow\n"); |
322 |
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printf("\nshaft_mat cylinder trans_dir\n0\n0\n7"); |
321 |
> |
printf("\n# Transmission arrow #%d\n", cnt); |
322 |
> |
printf("\nshaft_mat cylinder trans_dir%d\n0\n0\n7", cnt); |
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printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", |
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origin[0], origin[1], origin[2], |
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origin[0], origin[1], origin[2]-arrow_len, |
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arrow_rad); |
327 |
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printf("\ntip_mat cone trans_tip\n0\n0\n8"); |
327 |
> |
printf("\ntip_mat cone trans_tip%d\n0\n0\n8", cnt); |
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printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", |
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origin[0], origin[1], origin[2]-arrow_len+.5*tip_len, |
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origin[0], origin[1], origin[2]-arrow_len-.5*tip_len, |
331 |
< |
2.*arrow_rad); |
331 |
> |
2.*arrow_rad); |
332 |
> |
++cnt; |
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} |
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|
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/* Compute rotation (x,y,z) => (xp,yp,zp) */ |
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if (front_comp) { |
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printf( |
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"\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", |
521 |
< |
sph_fmat, nsegs, sph_rad, 0.495*PI, sph_xoffset); |
521 |
> |
sph_fmat, nsegs, sph_rad, 0.5*PI, sph_xoffset); |
522 |
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printf("\nvoid brighttext front_text\n3 helvet.fnt . FRONT\n0\n"); |
523 |
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printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", |
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-.22*sph_rad + sph_xoffset, -1.4*sph_rad, |
534 |
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if (back_comp) { |
535 |
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printf( |
536 |
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"\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", |
537 |
< |
sph_bmat, nsegs, sph_rad, 0.495*PI, -sph_xoffset); |
537 |
> |
sph_bmat, nsegs, sph_rad, 0.5*PI, -sph_xoffset); |
538 |
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printf("\nvoid brighttext back_text\n3 helvet.fnt . BACK\n0\n"); |
539 |
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printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", |
540 |
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-.22*sph_rad - sph_xoffset, -1.4*sph_rad, |
674 |
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static int |
675 |
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rbf_headline(char *s, void *p) |
676 |
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{ |
677 |
< |
char fmt[64]; |
677 |
> |
char fmt[MAXFMTLEN]; |
678 |
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|
679 |
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if (formatval(fmt, s)) { |
680 |
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if (strcmp(fmt, BSDFREP_FMT)) |
708 |
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main(int argc, char *argv[]) |
709 |
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{ |
710 |
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int inpXML = -1; |
711 |
+ |
double myLim[2]; |
712 |
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SDData myBSDF; |
713 |
< |
int n; |
713 |
> |
int a, n; |
714 |
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/* check arguments */ |
715 |
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progname = argv[0]; |
716 |
< |
if (argc > 1 && (n = strlen(argv[1])-4) > 0) { |
717 |
< |
if (!strcasecmp(argv[1]+n, ".xml")) |
716 |
> |
a = 1; |
717 |
> |
myLim[0] = -1; myLim[1] = -2; /* specified BSDF range? */ |
718 |
> |
if (argc > a+3 && argv[a][0] == '-' && argv[a][1] == 'r') { |
719 |
> |
myLim[0] = atof(argv[++a]); |
720 |
> |
myLim[1] = atof(argv[++a]); |
721 |
> |
++a; |
722 |
> |
} |
723 |
> |
if (argc > a && (n = strlen(argv[a])-4) > 0) { |
724 |
> |
if (!strcasecmp(argv[a]+n, ".xml")) |
725 |
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inpXML = 1; |
726 |
< |
else if (!strcasecmp(argv[1]+n, ".sir")) |
726 |
> |
else if (!strcasecmp(argv[a]+n, ".sir")) |
727 |
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inpXML = 0; |
728 |
|
} |
729 |
< |
if (inpXML < 0 || inpXML & (argc > 2)) { |
730 |
< |
fprintf(stderr, "Usage: %s bsdf.xml > output.rad\n", progname); |
731 |
< |
fprintf(stderr, " Or: %s hemi1.sir hemi2.sir .. > output.rad\n", progname); |
729 |
> |
if (inpXML < 0 || inpXML & (argc > a+1)) { |
730 |
> |
fprintf(stderr, "Usage: %s [-r min max] bsdf.xml > output.rad\n", progname); |
731 |
> |
fprintf(stderr, " Or: %s [-r min max] hemi1.sir hemi2.sir .. > output.rad\n", progname); |
732 |
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return(1); |
733 |
|
} |
734 |
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fputs("# ", stdout); /* copy our command */ |
735 |
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printargs(argc, argv, stdout); |
736 |
|
/* evaluate BSDF */ |
737 |
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if (inpXML) { |
738 |
< |
SDclearBSDF(&myBSDF, argv[1]); |
739 |
< |
if (SDreportError(SDloadFile(&myBSDF, argv[1]), stderr)) |
738 |
> |
SDclearBSDF(&myBSDF, argv[a]); |
739 |
> |
if (SDreportError(SDloadFile(&myBSDF, argv[a]), stderr)) |
740 |
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return(1); |
741 |
|
if (myBSDF.rf != NULL) front_comp |= SDsampR; |
742 |
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if (myBSDF.tf != NULL) front_comp |= SDsampT; |
744 |
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if (myBSDF.tb != NULL) back_comp |= SDsampT; |
745 |
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if (!front_comp & !back_comp) { |
746 |
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fprintf(stderr, "%s: nothing to plot in '%s'\n", |
747 |
< |
progname, argv[1]); |
747 |
> |
progname, argv[a]); |
748 |
|
return(1); |
749 |
|
} |
750 |
< |
if (front_comp & SDsampR && myBSDF.rLambFront.cieY < overall_min*PI) |
751 |
< |
overall_min = myBSDF.rLambFront.cieY/PI; |
752 |
< |
if (back_comp & SDsampR && myBSDF.rLambBack.cieY < overall_min*PI) |
753 |
< |
overall_min = myBSDF.rLambBack.cieY/PI; |
754 |
< |
if ((front_comp|back_comp) & SDsampT && |
755 |
< |
myBSDF.tLamb.cieY < overall_min*PI) |
756 |
< |
overall_min = myBSDF.tLamb.cieY/PI; |
750 |
> |
if (myLim[0] >= 0) |
751 |
> |
overall_min = myLim[0]; |
752 |
> |
else { |
753 |
> |
if (front_comp & SDsampR && myBSDF.rLambFront.cieY < overall_min*PI) |
754 |
> |
overall_min = myBSDF.rLambFront.cieY/PI; |
755 |
> |
if (back_comp & SDsampR && myBSDF.rLambBack.cieY < overall_min*PI) |
756 |
> |
overall_min = myBSDF.rLambBack.cieY/PI; |
757 |
> |
if ((front_comp|back_comp) & SDsampT && |
758 |
> |
myBSDF.tLamb.cieY < overall_min*PI) |
759 |
> |
overall_min = myBSDF.tLamb.cieY/PI; |
760 |
> |
} |
761 |
|
set_minlog(); |
762 |
|
if (!build_wBSDF(&myBSDF)) |
763 |
|
return(1); |
766 |
|
else |
767 |
|
strcpy(bsdf_name, myBSDF.name); |
768 |
|
strcpy(bsdf_manuf, myBSDF.makr); |
769 |
< |
put_matBSDF(argv[1]); |
769 |
> |
put_matBSDF(argv[a]); |
770 |
|
} else { |
771 |
|
FILE *fp[4]; |
772 |
< |
if (argc > 5) { |
772 |
> |
if (argc > a+4) { |
773 |
|
fprintf(stderr, "%s: more than 4 hemispheres!\n", progname); |
774 |
|
return(1); |
775 |
|
} |
776 |
< |
for (n = 1; n < argc; n++) { |
777 |
< |
fp[n-1] = fopen(argv[n], "rb"); |
778 |
< |
if (fp[n-1] == NULL) { |
776 |
> |
for (n = a; n < argc; n++) { |
777 |
> |
fp[n-a] = fopen(argv[n], "rb"); |
778 |
> |
if (fp[n-a] == NULL) { |
779 |
|
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
780 |
|
progname, argv[n]); |
781 |
|
return(1); |
782 |
|
} |
783 |
< |
if (getheader(fp[n-1], rbf_headline, NULL) < 0) { |
783 |
> |
if (getheader(fp[n-a], rbf_headline, NULL) < 0) { |
784 |
|
fprintf(stderr, "%s: bad BSDF interpolant '%s'\n", |
785 |
|
progname, argv[n]); |
786 |
|
return(1); |
787 |
|
} |
788 |
|
} |
789 |
+ |
if (myLim[0] >= 0) |
790 |
+ |
overall_min = myLim[0]; |
791 |
|
set_minlog(); |
792 |
< |
for (n = 1; n < argc; n++) { |
793 |
< |
if (fseek(fp[n-1], 0L, SEEK_SET) < 0) { |
792 |
> |
for (n = a; n < argc; n++) { |
793 |
> |
if (fseek(fp[n-a], 0L, SEEK_SET) < 0) { |
794 |
|
fprintf(stderr, "%s: cannot seek on '%s'\n", |
795 |
|
progname, argv[n]); |
796 |
|
return(1); |
797 |
|
} |
798 |
< |
if (!load_bsdf_rep(fp[n-1])) |
798 |
> |
if (!load_bsdf_rep(fp[n-a])) |
799 |
|
return(1); |
800 |
< |
fclose(fp[n-1]); |
800 |
> |
fclose(fp[n-a]); |
801 |
|
if (!build_wRBF()) |
802 |
|
return(1); |
803 |
|
} |
804 |
|
put_matBSDF(NULL); |
805 |
|
} |
806 |
+ |
if (myLim[1] > myLim[0]) /* override maximum BSDF? */ |
807 |
+ |
overall_max = myLim[1]; |
808 |
|
put_source(); /* before hemispheres & labels */ |
809 |
|
put_hemispheres(); |
810 |
|
put_scale(); |