26 |
|
int |
27 |
|
main(int argc, char *argv[]) |
28 |
|
{ |
29 |
+ |
int showPeaks = 0; |
30 |
|
char buf[128]; |
31 |
|
FILE *fp; |
32 |
|
RBFNODE *rbf; |
35 |
|
int i, j, n; |
36 |
|
|
37 |
|
progname = argv[0]; |
38 |
+ |
if (argc > 1 && !strcmp(argv[1], "-p")) { |
39 |
+ |
++showPeaks; |
40 |
+ |
++argv; --argc; |
41 |
+ |
} |
42 |
|
if (argc < 4) { |
43 |
< |
fprintf(stderr, "Usage: %s bsdf.sir theta1 phi1 .. > output.rad\n", argv[0]); |
43 |
> |
fprintf(stderr, "Usage: %s [-p] bsdf.sir theta1 phi1 .. > output.rad\n", progname); |
44 |
|
return(1); |
45 |
|
} |
46 |
|
/* load input */ |
47 |
|
if ((fp = fopen(argv[1], "rb")) == NULL) { |
48 |
|
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
49 |
< |
argv[0], argv[1]); |
49 |
> |
progname, argv[1]); |
50 |
|
return(1); |
51 |
|
} |
52 |
|
if (!load_bsdf_rep(fp)) |
53 |
|
return(1); |
54 |
|
fclose(fp); |
55 |
|
min_log = log(bsdf_min*.5); |
56 |
< |
/* output surface(s) */ |
56 |
> |
/* output BSDF rep. */ |
57 |
|
for (n = 0; (n < 6) & (2*n+3 < argc); n++) { |
53 |
– |
printf("void trans tmat\n0\n0\n7 %f %f %f .04 .04 .9 1\n", |
54 |
– |
colarr[n][0], colarr[n][1], colarr[n][2]); |
55 |
– |
fflush(stdout); |
56 |
– |
sprintf(buf, "gensurf tmat bsdf - - - %d %d", GRIDRES-1, GRIDRES-1); |
57 |
– |
fp = popen(buf, "w"); |
58 |
– |
if (fp == NULL) { |
59 |
– |
fprintf(stderr, "%s: cannot open '| %s'\n", argv[0], buf); |
60 |
– |
return(1); |
61 |
– |
} |
58 |
|
dir[2] = sin((M_PI/180.)*atof(argv[2*n+2])); |
59 |
|
dir[0] = dir[2] * cos((M_PI/180.)*atof(argv[2*n+3])); |
60 |
|
dir[1] = dir[2] * sin((M_PI/180.)*atof(argv[2*n+3])); |
66 |
|
fputs("NULL RBF\n", stderr); |
67 |
|
else |
68 |
|
fprintf(stderr, "Hemispherical reflectance: %.3f\n", rbf->vtotal); |
69 |
+ |
printf("void trans tmat\n0\n0\n7 %f %f %f .04 .04 .9 1\n", |
70 |
+ |
colarr[n][0], colarr[n][1], colarr[n][2]); |
71 |
+ |
if (showPeaks && rbf != NULL) { |
72 |
+ |
printf("void plastic pmat\n0\n0\n5 %f %f %f .04 .08\n", |
73 |
+ |
1.-colarr[n][0], 1.-colarr[n][1], 1.-colarr[n][2]); |
74 |
+ |
for (i = 0; i < rbf->nrbf; i++) { |
75 |
+ |
ovec_from_pos(dir, rbf->rbfa[i].gx, rbf->rbfa[i].gy); |
76 |
+ |
bsdf = eval_rbfrep(rbf, dir) / (output_orient*dir[2]); |
77 |
+ |
bsdf = log(bsdf) - min_log; |
78 |
+ |
printf("pmat sphere p%d\n0\n0\n4 %f %f %f %f\n", |
79 |
+ |
i+1, dir[0]*bsdf, dir[1]*bsdf, dir[2]*bsdf, |
80 |
+ |
.007*bsdf); |
81 |
+ |
} |
82 |
+ |
} |
83 |
+ |
fflush(stdout); |
84 |
+ |
sprintf(buf, "gensurf tmat bsdf - - - %d %d", GRIDRES-1, GRIDRES-1); |
85 |
+ |
fp = popen(buf, "w"); |
86 |
+ |
if (fp == NULL) { |
87 |
+ |
fprintf(stderr, "%s: cannot open '| %s'\n", progname, buf); |
88 |
+ |
return(1); |
89 |
+ |
} |
90 |
|
for (i = 0; i < GRIDRES; i++) |
91 |
|
for (j = 0; j < GRIDRES; j++) { |
92 |
|
ovec_from_pos(dir, i, j); |