| 25 |
|
/* super-sampling threshold */ |
| 26 |
|
const double ssamp_thresh = 0.35; |
| 27 |
|
/* number of super-samples */ |
| 28 |
< |
const int nssamp = 100; |
| 28 |
> |
#ifndef NSSAMP |
| 29 |
> |
#define NSSAMP 100 |
| 30 |
> |
#endif |
| 31 |
|
/* limit on number of RBF lobes */ |
| 32 |
|
static int lobe_lim = 15000; |
| 33 |
+ |
/* progress bar length */ |
| 34 |
+ |
static int do_prog = 79; |
| 35 |
|
|
| 36 |
+ |
|
| 37 |
+ |
/* Start new progress bar */ |
| 38 |
+ |
#define prog_start(s) if (do_prog) fprintf(stderr, "%s: %s...\n", progname, s); else |
| 39 |
+ |
|
| 40 |
+ |
/* Draw progress bar of the appropriate length */ |
| 41 |
+ |
static void |
| 42 |
+ |
prog_show(double frac) |
| 43 |
+ |
{ |
| 44 |
+ |
static unsigned call_cnt = 0; |
| 45 |
+ |
static char lastc[] = "-\\|/"; |
| 46 |
+ |
char pbar[256]; |
| 47 |
+ |
int nchars; |
| 48 |
+ |
|
| 49 |
+ |
if (do_prog <= 1) return; |
| 50 |
+ |
if (do_prog > sizeof(pbar)-2) |
| 51 |
+ |
do_prog = sizeof(pbar)-2; |
| 52 |
+ |
if (frac < 0) frac = 0; |
| 53 |
+ |
else if (frac >= 1) frac = .9999; |
| 54 |
+ |
nchars = do_prog*frac; |
| 55 |
+ |
pbar[0] = '\r'; |
| 56 |
+ |
memset(pbar+1, '*', nchars); |
| 57 |
+ |
pbar[nchars+1] = lastc[call_cnt++ & 3]; |
| 58 |
+ |
memset(pbar+2+nchars, '-', do_prog-nchars-1); |
| 59 |
+ |
pbar[do_prog+1] = '\0'; |
| 60 |
+ |
fputs(pbar, stderr); |
| 61 |
+ |
} |
| 62 |
+ |
|
| 63 |
+ |
/* Finish progress bar */ |
| 64 |
+ |
static void |
| 65 |
+ |
prog_done(void) |
| 66 |
+ |
{ |
| 67 |
+ |
int n = do_prog; |
| 68 |
+ |
|
| 69 |
+ |
if (n <= 1) return; |
| 70 |
+ |
fputc('\r', stderr); |
| 71 |
+ |
while (n--) |
| 72 |
+ |
fputc(' ', stderr); |
| 73 |
+ |
fputc('\r', stderr); |
| 74 |
+ |
} |
| 75 |
+ |
|
| 76 |
|
/* Output XML prologue to stdout */ |
| 77 |
|
static void |
| 78 |
|
xml_prologue(int ac, char *av[]) |
| 179 |
|
exit(1); |
| 180 |
|
} |
| 181 |
|
SET_FILE_BINARY(ofp); |
| 182 |
+ |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
| 183 |
+ |
flockfile(ofp); |
| 184 |
+ |
#endif |
| 185 |
|
} else |
| 186 |
|
fputs("{\n", stdout); |
| 187 |
|
/* need to assign Dx, Dy, Dz? */ |
| 202 |
|
iovec[5] = output_orient * |
| 203 |
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 204 |
|
if (funame == NULL) |
| 205 |
< |
bsdf = eval_rbfrep(rbf, iovec+3) * |
| 159 |
< |
output_orient/iovec[5]; |
| 205 |
> |
bsdf = eval_rbfrep(rbf, iovec+3); |
| 206 |
|
else { |
| 161 |
– |
double ssa[3], ssvec[6], sum; |
| 162 |
– |
int ssi; |
| 207 |
|
if (assignD) { |
| 208 |
|
varset("Dx", '=', -iovec[3]); |
| 209 |
|
varset("Dy", '=', -iovec[4]); |
| 211 |
|
++eclock; |
| 212 |
|
} |
| 213 |
|
bsdf = funvalue(funame, 6, iovec); |
| 214 |
+ |
#if (NSSAMP > 0) |
| 215 |
|
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
| 216 |
< |
sum = 0; /* super-sample voxel */ |
| 217 |
< |
for (ssi = nssamp; ssi--; ) { |
| 218 |
< |
SDmultiSamp(ssa, 3, (ssi+frandom())/nssamp); |
| 216 |
> |
int ssi; |
| 217 |
> |
double ssa[3], ssvec[6], sum = 0; |
| 218 |
> |
/* super-sample voxel */ |
| 219 |
> |
for (ssi = NSSAMP; ssi--; ) { |
| 220 |
> |
SDmultiSamp(ssa, 3, (ssi+frandom()) * |
| 221 |
> |
(1./NSSAMP)); |
| 222 |
|
ssvec[0] = 2.*(ix+ssa[0])/sqres - 1.; |
| 223 |
|
ssvec[1] = .0; |
| 224 |
|
ssvec[2] = input_orient * |
| 229 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
| 230 |
|
ssvec[4]*ssvec[4]); |
| 231 |
|
if (assignD) { |
| 232 |
< |
varset("Dx", '=', -iovec[3]); |
| 233 |
< |
varset("Dy", '=', -iovec[4]); |
| 234 |
< |
varset("Dz", '=', -iovec[5]); |
| 232 |
> |
varset("Dx", '=', -ssvec[3]); |
| 233 |
> |
varset("Dy", '=', -ssvec[4]); |
| 234 |
> |
varset("Dz", '=', -ssvec[5]); |
| 235 |
|
++eclock; |
| 236 |
|
} |
| 237 |
|
sum += funvalue(funame, 6, ssvec); |
| 238 |
|
} |
| 239 |
< |
bsdf = sum/nssamp; |
| 239 |
> |
bsdf = sum/NSSAMP; |
| 240 |
|
} |
| 241 |
+ |
#endif |
| 242 |
|
} |
| 243 |
|
if (pctcull >= 0) |
| 244 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
| 249 |
|
} |
| 250 |
|
if (rbf != NULL) |
| 251 |
|
free(rbf); |
| 252 |
+ |
prog_show((ix+1.)*(2./sqres)); |
| 253 |
|
} |
| 254 |
|
if (pctcull >= 0) { /* finish output */ |
| 255 |
|
if (pclose(ofp)) { |
| 263 |
|
fputs("}\n", stdout); |
| 264 |
|
} |
| 265 |
|
data_epilogue(); |
| 266 |
+ |
prog_done(); |
| 267 |
|
} |
| 268 |
|
|
| 269 |
|
/* Interpolate and output anisotropic BSDF data */ |
| 290 |
|
progname); |
| 291 |
|
exit(1); |
| 292 |
|
} |
| 293 |
+ |
SET_FILE_BINARY(ofp); |
| 294 |
+ |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
| 295 |
+ |
flockfile(ofp); |
| 296 |
+ |
#endif |
| 297 |
|
} else |
| 298 |
|
fputs("{\n", stdout); |
| 299 |
|
/* need to assign Dx, Dy, Dz? */ |
| 315 |
|
iovec[5] = output_orient * |
| 316 |
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 317 |
|
if (funame == NULL) |
| 318 |
< |
bsdf = eval_rbfrep(rbf, iovec+3) * |
| 264 |
< |
output_orient/iovec[5]; |
| 318 |
> |
bsdf = eval_rbfrep(rbf, iovec+3); |
| 319 |
|
else { |
| 266 |
– |
double ssa[4], ssvec[6], sum; |
| 267 |
– |
int ssi; |
| 320 |
|
if (assignD) { |
| 321 |
|
varset("Dx", '=', -iovec[3]); |
| 322 |
|
varset("Dy", '=', -iovec[4]); |
| 324 |
|
++eclock; |
| 325 |
|
} |
| 326 |
|
bsdf = funvalue(funame, 6, iovec); |
| 327 |
+ |
#if (NSSAMP > 0) |
| 328 |
|
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
| 329 |
< |
sum = 0; /* super-sample voxel */ |
| 330 |
< |
for (ssi = nssamp; ssi--; ) { |
| 331 |
< |
SDmultiSamp(ssa, 4, (ssi+frandom())/nssamp); |
| 329 |
> |
int ssi; |
| 330 |
> |
double ssa[4], ssvec[6], sum = 0; |
| 331 |
> |
/* super-sample voxel */ |
| 332 |
> |
for (ssi = NSSAMP; ssi--; ) { |
| 333 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom()) * |
| 334 |
> |
(1./NSSAMP)); |
| 335 |
|
SDsquare2disk(ssvec, 1.-(ix+ssa[0])/sqres, |
| 336 |
|
1.-(iy+ssa[1])/sqres); |
| 337 |
< |
ssvec[2] = output_orient * |
| 337 |
> |
ssvec[2] = input_orient * |
| 338 |
|
sqrt(1. - ssvec[0]*ssvec[0] - |
| 339 |
|
ssvec[1]*ssvec[1]); |
| 340 |
|
SDsquare2disk(ssvec+3, (ox+ssa[2])/sqres, |
| 343 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
| 344 |
|
ssvec[4]*ssvec[4]); |
| 345 |
|
if (assignD) { |
| 346 |
< |
varset("Dx", '=', -iovec[3]); |
| 347 |
< |
varset("Dy", '=', -iovec[4]); |
| 348 |
< |
varset("Dz", '=', -iovec[5]); |
| 346 |
> |
varset("Dx", '=', -ssvec[3]); |
| 347 |
> |
varset("Dy", '=', -ssvec[4]); |
| 348 |
> |
varset("Dz", '=', -ssvec[5]); |
| 349 |
|
++eclock; |
| 350 |
|
} |
| 351 |
|
sum += funvalue(funame, 6, ssvec); |
| 352 |
|
} |
| 353 |
< |
bsdf = sum/nssamp; |
| 353 |
> |
bsdf = sum/NSSAMP; |
| 354 |
|
} |
| 355 |
+ |
#endif |
| 356 |
|
} |
| 357 |
|
if (pctcull >= 0) |
| 358 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
| 363 |
|
} |
| 364 |
|
if (rbf != NULL) |
| 365 |
|
free(rbf); |
| 366 |
+ |
prog_show((ix*sqres+iy+1.)/(sqres*sqres)); |
| 367 |
|
} |
| 368 |
|
if (pctcull >= 0) { /* finish output */ |
| 369 |
|
if (pclose(ofp)) { |
| 374 |
|
} else |
| 375 |
|
fputs("}\n", stdout); |
| 376 |
|
data_epilogue(); |
| 377 |
+ |
prog_done(); |
| 378 |
|
} |
| 379 |
|
|
| 380 |
|
/* Read in BSDF and interpolate as tensor tree representation */ |
| 424 |
|
case 'l': |
| 425 |
|
lobe_lim = atoi(argv[++i]); |
| 426 |
|
break; |
| 427 |
+ |
case 'p': |
| 428 |
+ |
do_prog = atoi(argv[i]+2); |
| 429 |
+ |
break; |
| 430 |
|
default: |
| 431 |
|
goto userr; |
| 432 |
|
} |
| 445 |
|
if (dofwd) { |
| 446 |
|
input_orient = -1; |
| 447 |
|
output_orient = -1; |
| 448 |
< |
(*evf)(argv[i]); /* outside reflectance */ |
| 448 |
> |
prog_start("Evaluating outside reflectance"); |
| 449 |
> |
(*evf)(argv[i]); |
| 450 |
|
output_orient = 1; |
| 451 |
< |
(*evf)(argv[i]); /* outside -> inside */ |
| 451 |
> |
prog_start("Evaluating outside->inside transmission"); |
| 452 |
> |
(*evf)(argv[i]); |
| 453 |
|
} |
| 454 |
|
if (dobwd) { |
| 455 |
|
input_orient = 1; |
| 456 |
|
output_orient = 1; |
| 457 |
< |
(*evf)(argv[i]); /* inside reflectance */ |
| 457 |
> |
prog_start("Evaluating inside reflectance"); |
| 458 |
> |
(*evf)(argv[i]); |
| 459 |
|
output_orient = -1; |
| 460 |
< |
(*evf)(argv[i]); /* inside -> outside */ |
| 460 |
> |
prog_start("Evaluating inside->outside transmission"); |
| 461 |
> |
(*evf)(argv[i]); |
| 462 |
|
} |
| 463 |
|
xml_epilogue(); /* finish XML output & exit */ |
| 464 |
|
return(0); |
| 466 |
|
if (i < argc) { /* open input files if given */ |
| 467 |
|
int nbsdf = 0; |
| 468 |
|
for ( ; i < argc; i++) { /* interpolate each component */ |
| 469 |
+ |
char pbuf[256]; |
| 470 |
|
FILE *fpin = fopen(argv[i], "rb"); |
| 471 |
|
if (fpin == NULL) { |
| 472 |
|
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
| 478 |
|
fclose(fpin); |
| 479 |
|
if (!nbsdf++) /* start XML on first dist. */ |
| 480 |
|
xml_prologue(argc, argv); |
| 481 |
+ |
sprintf(pbuf, "Interpolating component '%s'", argv[i]); |
| 482 |
+ |
prog_start(pbuf); |
| 483 |
|
if (single_plane_incident) |
| 484 |
|
eval_isotropic(NULL); |
| 485 |
|
else |
| 492 |
|
if (!load_bsdf_rep(stdin)) |
| 493 |
|
return(1); |
| 494 |
|
xml_prologue(argc, argv); /* start XML output */ |
| 495 |
+ |
prog_start("Interpolating from standard input"); |
| 496 |
|
if (single_plane_incident) /* resample dist. */ |
| 497 |
|
eval_isotropic(NULL); |
| 498 |
|
else |