| 14 |
|
#include <math.h> |
| 15 |
|
#include "platform.h" |
| 16 |
|
#include "bsdfrep.h" |
| 17 |
+ |
#include "resolu.h" |
| 18 |
|
/* global argv[0] */ |
| 19 |
|
char *progname; |
| 20 |
|
|
| 25 |
|
long dstart; /* data start offset in file */ |
| 26 |
|
} PGINPUT; |
| 27 |
|
|
| 28 |
+ |
const double ANGLE_EPS = 180./2./GRIDRES; |
| 29 |
+ |
|
| 30 |
|
PGINPUT *inpfile; /* input files sorted by incidence */ |
| 31 |
|
int ninpfiles; /* number of input files */ |
| 32 |
|
|
| 37 |
|
const PGINPUT *inp1 = (const PGINPUT *)p1; |
| 38 |
|
const PGINPUT *inp2 = (const PGINPUT *)p2; |
| 39 |
|
|
| 40 |
< |
if (inp1->theta > inp2->theta+FTINY) |
| 40 |
> |
if (inp1->theta > inp2->theta+ANGLE_EPS) |
| 41 |
|
return(1); |
| 42 |
< |
if (inp1->theta < inp2->theta-FTINY) |
| 42 |
> |
if (inp1->theta < inp2->theta-ANGLE_EPS) |
| 43 |
|
return(-1); |
| 44 |
< |
if (inp1->phi > inp2->phi+FTINY) |
| 44 |
> |
if (inp1->phi > inp2->phi+ANGLE_EPS) |
| 45 |
|
return(1); |
| 46 |
< |
if (inp1->phi < inp2->phi-FTINY) |
| 46 |
> |
if (inp1->phi < inp2->phi-ANGLE_EPS) |
| 47 |
|
return(-1); |
| 48 |
|
return(0); |
| 49 |
|
} |
| 73 |
|
fclose(fp); |
| 74 |
|
return(0); |
| 75 |
|
} |
| 76 |
+ |
if (sscanf(buf, "sample_name \"%[^\"]\"", bsdf_name) == 1) |
| 77 |
+ |
continue; |
| 78 |
|
if (sscanf(buf, "format: theta phi %s", typ) == 1) { |
| 79 |
|
if (!strcasecmp(typ, "DSF")) { |
| 80 |
|
inpfile[i].isDSF = 1; |
| 150 |
|
return(1); |
| 151 |
|
} |
| 152 |
|
|
| 153 |
< |
#if 1 |
| 153 |
> |
#ifndef TEST_MAIN |
| 154 |
|
/* Read in PAB-Opto BSDF files and output RBF interpolant */ |
| 155 |
|
int |
| 156 |
|
main(int argc, char *argv[]) |
| 219 |
|
return(1); |
| 220 |
|
/* reduce data set */ |
| 221 |
|
make_rbfrep(); |
| 222 |
< |
/* produce spheres at meas. */ |
| 222 |
> |
#ifdef DEBUG |
| 223 |
> |
fprintf(stderr, "Minimum BSDF = %.4f\n", bsdf_min); |
| 224 |
> |
#endif |
| 225 |
> |
min_log = log(bsdf_min*.5 + 1e-5); |
| 226 |
> |
#if 1 /* produce spheres at meas. */ |
| 227 |
|
puts("void plastic yellow\n0\n0\n5 .6 .4 .01 .04 .08\n"); |
| 219 |
– |
min_log = log(bsdf_min*.5); |
| 228 |
|
n = 0; |
| 229 |
|
for (i = 0; i < GRIDRES; i++) |
| 230 |
|
for (j = 0; j < GRIDRES; j++) |
| 231 |
< |
if (dsf_grid[i][j].nval > 0) { |
| 231 |
> |
if (dsf_grid[i][j].sum.n > 0) { |
| 232 |
|
ovec_from_pos(dir, i, j); |
| 233 |
< |
bsdf = dsf_grid[i][j].vsum/(dsf_grid[i][j].nval*dir[2]); |
| 233 |
> |
bsdf = dsf_grid[i][j].sum.v / |
| 234 |
> |
(dsf_grid[i][j].sum.n*output_orient*dir[2]); |
| 235 |
|
if (bsdf <= bsdf_min*.6) |
| 236 |
|
continue; |
| 237 |
< |
bsdf = log(bsdf) - min_log; |
| 237 |
> |
bsdf = log(bsdf + 1e-5) - min_log; |
| 238 |
|
ovec_from_pos(dir, i, j); |
| 239 |
|
printf("yellow sphere s%04d\n0\n0\n", ++n); |
| 240 |
|
printf("4 %.6g %.6g %.6g %.6g\n\n", |
| 241 |
|
dir[0]*bsdf, dir[1]*bsdf, dir[2]*bsdf, |
| 242 |
|
.007*bsdf); |
| 243 |
|
} |
| 244 |
< |
/* output continuous surface */ |
| 244 |
> |
#endif |
| 245 |
> |
#if 1 /* spheres at RBF peaks */ |
| 246 |
> |
puts("void plastic red\n0\n0\n5 .8 .01 .01 .04 .08\n"); |
| 247 |
> |
for (n = 0; n < dsf_list->nrbf; n++) { |
| 248 |
> |
RBFVAL *rbf = &dsf_list->rbfa[n]; |
| 249 |
> |
ovec_from_pos(dir, rbf->gx, rbf->gy); |
| 250 |
> |
bsdf = eval_rbfrep(dsf_list, dir) / (output_orient*dir[2]); |
| 251 |
> |
bsdf = log(bsdf + 1e-5) - min_log; |
| 252 |
> |
printf("red sphere p%04d\n0\n0\n", ++n); |
| 253 |
> |
printf("4 %.6g %.6g %.6g %.6g\n\n", |
| 254 |
> |
dir[0]*bsdf, dir[1]*bsdf, dir[2]*bsdf, |
| 255 |
> |
.011*bsdf); |
| 256 |
> |
} |
| 257 |
> |
#endif |
| 258 |
> |
#if 1 /* output continuous surface */ |
| 259 |
|
puts("void trans tgreen\n0\n0\n7 .7 1 .7 .04 .04 .9 1\n"); |
| 260 |
|
fflush(stdout); |
| 261 |
|
sprintf(buf, "gensurf tgreen bsdf - - - %d %d", GRIDRES-1, GRIDRES-1); |
| 262 |
|
pfp = popen(buf, "w"); |
| 263 |
|
if (pfp == NULL) { |
| 264 |
< |
fputs(buf, stderr); |
| 242 |
< |
fputs(": cannot start command\n", stderr); |
| 264 |
> |
fprintf(stderr, "%s: cannot open '| %s'\n", argv[0], buf); |
| 265 |
|
return(1); |
| 266 |
|
} |
| 267 |
|
for (i = 0; i < GRIDRES; i++) |
| 268 |
|
for (j = 0; j < GRIDRES; j++) { |
| 269 |
|
ovec_from_pos(dir, i, j); |
| 270 |
< |
bsdf = eval_rbfrep(dsf_list, dir) / dir[2]; |
| 271 |
< |
bsdf = log(bsdf) - min_log; |
| 270 |
> |
bsdf = eval_rbfrep(dsf_list, dir) / (output_orient*dir[2]); |
| 271 |
> |
bsdf = log(bsdf + 1e-5) - min_log; |
| 272 |
|
fprintf(pfp, "%.8e %.8e %.8e\n", |
| 273 |
|
dir[0]*bsdf, dir[1]*bsdf, dir[2]*bsdf); |
| 274 |
|
} |
| 275 |
< |
return(pclose(pfp)==0 ? 0 : 1); |
| 275 |
> |
if (pclose(pfp) != 0) |
| 276 |
> |
return(1); |
| 277 |
> |
#endif |
| 278 |
> |
return(0); |
| 279 |
|
} |
| 280 |
|
#endif |
