| 8 |
|
*/ |
| 9 |
|
|
| 10 |
|
#define _USE_MATH_DEFINES |
| 11 |
– |
#include <stdio.h> |
| 11 |
|
#include <stdlib.h> |
| 12 |
|
#include <math.h> |
| 13 |
+ |
#include <ctype.h> |
| 14 |
|
#include "random.h" |
| 15 |
|
#include "platform.h" |
| 16 |
|
#include "paths.h" |
| 19 |
|
#include "bsdfrep.h" |
| 20 |
|
/* global argv[0] */ |
| 21 |
|
char *progname; |
| 22 |
+ |
/* reciprocity averaging option */ |
| 23 |
+ |
static const char *recip = " -a"; |
| 24 |
|
/* percentage to cull (<0 to turn off) */ |
| 25 |
|
static double pctcull = 90.; |
| 26 |
|
/* sampling order */ |
| 27 |
|
static int samp_order = 6; |
| 28 |
|
/* super-sampling threshold */ |
| 29 |
< |
const double ssamp_thresh = 0.35; |
| 29 |
> |
static double ssamp_thresh = 0.35; |
| 30 |
|
/* number of super-samples */ |
| 31 |
< |
#ifndef NSSAMP |
| 30 |
< |
#define NSSAMP 64 |
| 31 |
< |
#endif |
| 31 |
> |
static int nssamp = 256; |
| 32 |
|
/* limit on number of RBF lobes */ |
| 33 |
|
static int lobe_lim = 15000; |
| 34 |
|
/* progress bar length */ |
| 127 |
|
eval_isotropic(char *funame) |
| 128 |
|
{ |
| 129 |
|
const int sqres = 1<<samp_order; |
| 130 |
+ |
const double sqfact = 1./(double)sqres; |
| 131 |
+ |
float *val_last = NULL; |
| 132 |
+ |
float *val_next = NULL; |
| 133 |
+ |
SDValue *sdv_next = NULL; |
| 134 |
|
FILE *ofp, *uvfp[2]; |
| 135 |
|
int assignD = 0; |
| 136 |
|
char cmd[128]; |
| 137 |
|
int ix, ox, oy; |
| 138 |
< |
double iovec[6]; |
| 138 |
> |
RREAL iovec[6]; |
| 139 |
|
float bsdf, uv[2]; |
| 140 |
|
|
| 141 |
|
if (pctcull >= 0) { |
| 142 |
< |
sprintf(cmd, "rttree_reduce -a -h -ff -r 3 -t %f -g %d > %s", |
| 143 |
< |
pctcull, samp_order, create_component_file(0)); |
| 142 |
> |
sprintf(cmd, "rttree_reduce%s -h -ff -r 3 -t %f -g %d > %s", |
| 143 |
> |
recip, pctcull, samp_order, create_component_file(0)); |
| 144 |
|
ofp = popen(cmd, "w"); |
| 145 |
|
if (ofp == NULL) { |
| 146 |
|
fprintf(stderr, "%s: cannot create pipe to rttree_reduce\n", |
| 153 |
|
#endif |
| 154 |
|
if (rbf_colorimetry == RBCtristimulus) { |
| 155 |
|
double uvcull = 100. - (100.-pctcull)*.25; |
| 156 |
< |
sprintf(cmd, "rttree_reduce -a -h -ff -r 3 -t %f -g %d > %s", |
| 157 |
< |
uvcull, samp_order, create_component_file(1)); |
| 156 |
> |
sprintf(cmd, "rttree_reduce%s -h -ff -r 3 -t %f -g %d > %s", |
| 157 |
> |
recip, uvcull, samp_order, create_component_file(1)); |
| 158 |
|
uvfp[0] = popen(cmd, "w"); |
| 159 |
< |
sprintf(cmd, "rttree_reduce -a -h -ff -r 3 -t %f -g %d > %s", |
| 160 |
< |
uvcull, samp_order, create_component_file(2)); |
| 159 |
> |
sprintf(cmd, "rttree_reduce%s -h -ff -r 3 -t %f -g %d > %s", |
| 160 |
> |
recip, uvcull, samp_order, create_component_file(2)); |
| 161 |
|
uvfp[1] = popen(cmd, "w"); |
| 162 |
|
if ((uvfp[0] == NULL) | (uvfp[1] == NULL)) { |
| 163 |
|
fprintf(stderr, "%s: cannot open pipes to uv output\n", |
| 191 |
|
} |
| 192 |
|
if (funame != NULL) /* need to assign Dx, Dy, Dz? */ |
| 193 |
|
assignD = (fundefined(funame) < 6); |
| 194 |
+ |
val_last = (float *)calloc(sqres, sizeof(float)); |
| 195 |
+ |
if (funame == NULL) |
| 196 |
+ |
sdv_next = (SDValue *)malloc(sizeof(SDValue)*sqres); |
| 197 |
+ |
else |
| 198 |
+ |
val_next = (float *)malloc(sizeof(float)*sqres); |
| 199 |
|
/* run through directions */ |
| 200 |
|
for (ix = 0; ix < sqres/2; ix++) { |
| 201 |
< |
RBFNODE *rbf = NULL; |
| 202 |
< |
iovec[0] = 2.*(ix+.5)/sqres - 1.; |
| 203 |
< |
iovec[1] = .0; |
| 204 |
< |
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0]); |
| 201 |
> |
const int zipsgn = (ix & 1)*2 - 1; |
| 202 |
> |
RBFNODE *rbf = NULL; |
| 203 |
> |
iovec[0] = 2.*sqfact*(ix+.5) - 1.; |
| 204 |
> |
iovec[1] = zipsgn*sqfact*.5; |
| 205 |
> |
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0] |
| 206 |
> |
- iovec[1]*iovec[1]); |
| 207 |
|
if (funame == NULL) |
| 208 |
|
rbf = advect_rbf(iovec, lobe_lim); |
| 209 |
+ |
/* presample first row */ |
| 210 |
+ |
for (oy = 0; oy < sqres; oy++) { |
| 211 |
+ |
square2disk(iovec+3, .5*sqfact, (oy+.5)*sqfact); |
| 212 |
+ |
iovec[5] = output_orient * |
| 213 |
+ |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 214 |
+ |
if (funame == NULL) { |
| 215 |
+ |
eval_rbfcol(&sdv_next[oy], rbf, iovec+3); |
| 216 |
+ |
} else { |
| 217 |
+ |
if (assignD) { |
| 218 |
+ |
varset("Dx", '=', -iovec[3]); |
| 219 |
+ |
varset("Dy", '=', -iovec[4]); |
| 220 |
+ |
varset("Dz", '=', -iovec[5]); |
| 221 |
+ |
++eclock; |
| 222 |
+ |
} |
| 223 |
+ |
val_next[oy] = funvalue(funame, 6, iovec); |
| 224 |
+ |
} |
| 225 |
+ |
} |
| 226 |
|
for (ox = 0; ox < sqres; ox++) { |
| 227 |
< |
float last_bsdf = -1; |
| 227 |
> |
/* |
| 228 |
> |
* Super-sample when we detect a difference from before |
| 229 |
> |
* or after in this row, above or below. |
| 230 |
> |
*/ |
| 231 |
|
for (oy = 0; oy < sqres; oy++) { |
| 232 |
< |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
| 233 |
< |
iovec[5] = output_orient * |
| 232 |
> |
if (ox < sqres-1) { /* keeping one row ahead... */ |
| 233 |
> |
square2disk(iovec+3, (ox+1.5)*sqfact, (oy+.5)*sqfact); |
| 234 |
> |
iovec[5] = output_orient * |
| 235 |
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 236 |
+ |
} |
| 237 |
|
if (funame == NULL) { |
| 238 |
< |
SDValue sdv; |
| 206 |
< |
eval_rbfcol(&sdv, rbf, iovec+3); |
| 238 |
> |
SDValue sdv = sdv_next[oy]; |
| 239 |
|
bsdf = sdv.cieY; |
| 240 |
< |
if (rbf_colorimetry == RBCtristimulus) { |
| 240 |
> |
if (ox < sqres-1) |
| 241 |
> |
eval_rbfcol(&sdv_next[oy], rbf, iovec+3); |
| 242 |
> |
if (abs_diff(bsdf, sdv_next[oy].cieY) > ssamp_thresh || |
| 243 |
> |
(ox && abs_diff(bsdf, val_last[oy]) > ssamp_thresh) || |
| 244 |
> |
(oy && abs_diff(bsdf, val_last[oy-1]) > ssamp_thresh) || |
| 245 |
> |
(oy < sqres-1 && |
| 246 |
> |
abs_diff(bsdf, sdv_next[oy+1].cieY) > ssamp_thresh)) { |
| 247 |
> |
int ssi; |
| 248 |
> |
double ssa[2], sum = 0, usum = 0, vsum = 0; |
| 249 |
> |
/* super-sample voxel */ |
| 250 |
> |
for (ssi = nssamp; ssi--; ) { |
| 251 |
> |
SDmultiSamp(ssa, 2, (ssi+frandom()) / |
| 252 |
> |
(double)nssamp); |
| 253 |
> |
square2disk(iovec+3, (ox+ssa[0])*sqfact, |
| 254 |
> |
(oy+ssa[1])*sqfact); |
| 255 |
> |
iovec[5] = output_orient * |
| 256 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 257 |
> |
eval_rbfcol(&sdv, rbf, iovec+3); |
| 258 |
> |
sum += sdv.cieY; |
| 259 |
> |
if (rbf_colorimetry == RBCtristimulus) { |
| 260 |
> |
sdv.cieY /= |
| 261 |
> |
-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.; |
| 262 |
> |
usum += 4.*sdv.spec.cx * sdv.cieY; |
| 263 |
> |
vsum += 9.*sdv.spec.cy * sdv.cieY; |
| 264 |
> |
} |
| 265 |
> |
} |
| 266 |
> |
bsdf = sum / (double)nssamp; |
| 267 |
> |
if (rbf_colorimetry == RBCtristimulus) { |
| 268 |
> |
uv[0] = usum / (sum+FTINY); |
| 269 |
> |
uv[1] = vsum / (sum+FTINY); |
| 270 |
> |
} |
| 271 |
> |
} else if (rbf_colorimetry == RBCtristimulus) { |
| 272 |
|
uv[0] = uv[1] = 1. / |
| 273 |
|
(-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.); |
| 274 |
|
uv[0] *= 4.*sdv.spec.cx; |
| 275 |
|
uv[1] *= 9.*sdv.spec.cy; |
| 276 |
|
} |
| 277 |
|
} else { |
| 278 |
< |
if (assignD) { |
| 279 |
< |
varset("Dx", '=', -iovec[3]); |
| 280 |
< |
varset("Dy", '=', -iovec[4]); |
| 281 |
< |
varset("Dz", '=', -iovec[5]); |
| 282 |
< |
++eclock; |
| 278 |
> |
bsdf = val_next[oy]; |
| 279 |
> |
if (ox < sqres-1) { |
| 280 |
> |
if (assignD) { |
| 281 |
> |
varset("Dx", '=', -iovec[3]); |
| 282 |
> |
varset("Dy", '=', -iovec[4]); |
| 283 |
> |
varset("Dz", '=', -iovec[5]); |
| 284 |
> |
++eclock; |
| 285 |
> |
} |
| 286 |
> |
val_next[oy] = funvalue(funame, 6, iovec); |
| 287 |
|
} |
| 288 |
< |
bsdf = funvalue(funame, 6, iovec); |
| 289 |
< |
#if (NSSAMP > 0) |
| 290 |
< |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
| 288 |
> |
if (abs_diff(bsdf, val_next[oy]) > ssamp_thresh || |
| 289 |
> |
(ox && abs_diff(bsdf, val_last[oy]) > ssamp_thresh) || |
| 290 |
> |
(oy && abs_diff(bsdf, val_last[oy-1]) > ssamp_thresh) || |
| 291 |
> |
(oy < sqres-1 && |
| 292 |
> |
abs_diff(bsdf, val_next[oy+1]) > ssamp_thresh)) { |
| 293 |
|
int ssi; |
| 294 |
< |
double ssa[3], ssvec[6], sum = 0; |
| 294 |
> |
double ssa[4], ssvec[6], sum = 0; |
| 295 |
|
/* super-sample voxel */ |
| 296 |
< |
for (ssi = NSSAMP; ssi--; ) { |
| 297 |
< |
SDmultiSamp(ssa, 3, (ssi+frandom()) * |
| 298 |
< |
(1./NSSAMP)); |
| 299 |
< |
ssvec[0] = 2.*(ix+ssa[0])/sqres - 1.; |
| 300 |
< |
ssvec[1] = .0; |
| 301 |
< |
ssvec[2] = input_orient * |
| 302 |
< |
sqrt(1. - ssvec[0]*ssvec[0]); |
| 303 |
< |
SDsquare2disk(ssvec+3, (ox+ssa[1])/sqres, |
| 304 |
< |
(oy+ssa[2])/sqres); |
| 296 |
> |
for (ssi = nssamp; ssi--; ) { |
| 297 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom()) / |
| 298 |
> |
(double)nssamp); |
| 299 |
> |
ssvec[0] = 2.*sqfact*(ix+ssa[0]) - 1.; |
| 300 |
> |
ssvec[1] = zipsgn*sqfact*ssa[1]; |
| 301 |
> |
ssvec[2] = 1. - ssvec[0]*ssvec[0] |
| 302 |
> |
- ssvec[1]*ssvec[1]; |
| 303 |
> |
if (ssvec[2] < .0) { |
| 304 |
> |
ssvec[1] = 0; |
| 305 |
> |
ssvec[2] = 1. - ssvec[0]*ssvec[0]; |
| 306 |
> |
} |
| 307 |
> |
ssvec[2] = input_orient * sqrt(ssvec[2]); |
| 308 |
> |
square2disk(ssvec+3, (ox+ssa[2])*sqfact, |
| 309 |
> |
(oy+ssa[3])*sqfact); |
| 310 |
|
ssvec[5] = output_orient * |
| 311 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
| 312 |
|
ssvec[4]*ssvec[4]); |
| 318 |
|
} |
| 319 |
|
sum += funvalue(funame, 6, ssvec); |
| 320 |
|
} |
| 321 |
< |
bsdf = sum/NSSAMP; |
| 321 |
> |
bsdf = sum / (double)nssamp; |
| 322 |
|
} |
| 249 |
– |
#endif |
| 323 |
|
} |
| 324 |
|
if (pctcull >= 0) |
| 325 |
|
putbinary(&bsdf, sizeof(bsdf), 1, ofp); |
| 335 |
|
fprintf(uvfp[1], "\t%.3e\n", uv[1]); |
| 336 |
|
} |
| 337 |
|
} |
| 338 |
< |
last_bsdf = bsdf; |
| 338 |
> |
if (val_last != NULL) |
| 339 |
> |
val_last[oy] = bsdf; |
| 340 |
|
} |
| 341 |
|
} |
| 342 |
|
if (rbf != NULL) |
| 343 |
|
free(rbf); |
| 344 |
< |
prog_show((ix+1.)*(2./sqres)); |
| 344 |
> |
prog_show((ix+1.)*(2.*sqfact)); |
| 345 |
|
} |
| 346 |
|
prog_done(); |
| 347 |
+ |
if (val_last != NULL) { |
| 348 |
+ |
free(val_last); |
| 349 |
+ |
if (val_next != NULL) free(val_next); |
| 350 |
+ |
if (sdv_next != NULL) free(sdv_next); |
| 351 |
+ |
} |
| 352 |
|
if (pctcull >= 0) { /* finish output */ |
| 353 |
|
if (pclose(ofp)) { |
| 354 |
|
fprintf(stderr, "%s: error running rttree_reduce on Y\n", |
| 391 |
|
eval_anisotropic(char *funame) |
| 392 |
|
{ |
| 393 |
|
const int sqres = 1<<samp_order; |
| 394 |
+ |
const double sqfact = 1./(double)sqres; |
| 395 |
+ |
float *val_last = NULL; |
| 396 |
+ |
float *val_next = NULL; |
| 397 |
+ |
SDValue *sdv_next = NULL; |
| 398 |
|
FILE *ofp, *uvfp[2]; |
| 399 |
|
int assignD = 0; |
| 400 |
|
char cmd[128]; |
| 401 |
|
int ix, iy, ox, oy; |
| 402 |
< |
double iovec[6]; |
| 402 |
> |
RREAL iovec[6]; |
| 403 |
|
float bsdf, uv[2]; |
| 404 |
|
|
| 405 |
|
if (pctcull >= 0) { |
| 406 |
|
const char *avgopt = (input_orient>0 ^ output_orient>0) |
| 407 |
< |
? "" : " -a"; |
| 407 |
> |
? "" : recip; |
| 408 |
|
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d > %s", |
| 409 |
|
avgopt, pctcull, samp_order, |
| 410 |
|
create_component_file(0)); |
| 460 |
|
} |
| 461 |
|
if (funame != NULL) /* need to assign Dx, Dy, Dz? */ |
| 462 |
|
assignD = (fundefined(funame) < 6); |
| 463 |
+ |
val_last = (float *)calloc(sqres, sizeof(float)); |
| 464 |
+ |
if (funame == NULL) |
| 465 |
+ |
sdv_next = (SDValue *)malloc(sizeof(SDValue)*sqres); |
| 466 |
+ |
else |
| 467 |
+ |
val_next = (float *)malloc(sizeof(float)*sqres); |
| 468 |
|
/* run through directions */ |
| 469 |
|
for (ix = 0; ix < sqres; ix++) |
| 470 |
|
for (iy = 0; iy < sqres; iy++) { |
| 471 |
|
RBFNODE *rbf = NULL; /* Klems reversal */ |
| 472 |
< |
SDsquare2disk(iovec, 1.-(ix+.5)/sqres, 1.-(iy+.5)/sqres); |
| 472 |
> |
square2disk(iovec, 1.-(ix+.5)*sqfact, 1.-(iy+.5)*sqfact); |
| 473 |
|
iovec[2] = input_orient * |
| 474 |
|
sqrt(1. - iovec[0]*iovec[0] - iovec[1]*iovec[1]); |
| 475 |
|
if (funame == NULL) |
| 476 |
|
rbf = advect_rbf(iovec, lobe_lim); |
| 477 |
+ |
/* presample first row */ |
| 478 |
+ |
for (oy = 0; oy < sqres; oy++) { |
| 479 |
+ |
square2disk(iovec+3, .5*sqfact, (oy+.5)*sqfact); |
| 480 |
+ |
iovec[5] = output_orient * |
| 481 |
+ |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 482 |
+ |
if (funame == NULL) { |
| 483 |
+ |
eval_rbfcol(&sdv_next[oy], rbf, iovec+3); |
| 484 |
+ |
} else { |
| 485 |
+ |
if (assignD) { |
| 486 |
+ |
varset("Dx", '=', -iovec[3]); |
| 487 |
+ |
varset("Dy", '=', -iovec[4]); |
| 488 |
+ |
varset("Dz", '=', -iovec[5]); |
| 489 |
+ |
++eclock; |
| 490 |
+ |
} |
| 491 |
+ |
val_next[oy] = funvalue(funame, 6, iovec); |
| 492 |
+ |
} |
| 493 |
+ |
} |
| 494 |
|
for (ox = 0; ox < sqres; ox++) { |
| 495 |
< |
float last_bsdf = -1; |
| 495 |
> |
/* |
| 496 |
> |
* Super-sample when we detect a difference from before |
| 497 |
> |
* or after in this row, above or below. |
| 498 |
> |
*/ |
| 499 |
|
for (oy = 0; oy < sqres; oy++) { |
| 500 |
< |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
| 501 |
< |
iovec[5] = output_orient * |
| 500 |
> |
if (ox < sqres-1) { /* keeping one row ahead... */ |
| 501 |
> |
square2disk(iovec+3, (ox+1.5)*sqfact, (oy+.5)*sqfact); |
| 502 |
> |
iovec[5] = output_orient * |
| 503 |
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 504 |
+ |
} |
| 505 |
|
if (funame == NULL) { |
| 506 |
< |
SDValue sdv; |
| 397 |
< |
eval_rbfcol(&sdv, rbf, iovec+3); |
| 506 |
> |
SDValue sdv = sdv_next[oy]; |
| 507 |
|
bsdf = sdv.cieY; |
| 508 |
< |
if (rbf_colorimetry == RBCtristimulus) { |
| 508 |
> |
if (ox < sqres-1) |
| 509 |
> |
eval_rbfcol(&sdv_next[oy], rbf, iovec+3); |
| 510 |
> |
if (abs_diff(bsdf, sdv_next[oy].cieY) > ssamp_thresh || |
| 511 |
> |
(ox && abs_diff(bsdf, val_last[oy]) > ssamp_thresh) || |
| 512 |
> |
(oy && abs_diff(bsdf, val_last[oy-1]) > ssamp_thresh) || |
| 513 |
> |
(oy < sqres-1 && |
| 514 |
> |
abs_diff(bsdf, sdv_next[oy+1].cieY) > ssamp_thresh)) { |
| 515 |
> |
int ssi; |
| 516 |
> |
double ssa[2], sum = 0, usum = 0, vsum = 0; |
| 517 |
> |
/* super-sample voxel */ |
| 518 |
> |
for (ssi = nssamp; ssi--; ) { |
| 519 |
> |
SDmultiSamp(ssa, 2, (ssi+frandom()) / |
| 520 |
> |
(double)nssamp); |
| 521 |
> |
square2disk(iovec+3, (ox+ssa[0])*sqfact, |
| 522 |
> |
(oy+ssa[1])*sqfact); |
| 523 |
> |
iovec[5] = output_orient * |
| 524 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 525 |
> |
eval_rbfcol(&sdv, rbf, iovec+3); |
| 526 |
> |
sum += sdv.cieY; |
| 527 |
> |
if (rbf_colorimetry == RBCtristimulus) { |
| 528 |
> |
sdv.cieY /= |
| 529 |
> |
-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.; |
| 530 |
> |
usum += 4.*sdv.spec.cx * sdv.cieY; |
| 531 |
> |
vsum += 9.*sdv.spec.cy * sdv.cieY; |
| 532 |
> |
} |
| 533 |
> |
} |
| 534 |
> |
bsdf = sum / (double)nssamp; |
| 535 |
> |
if (rbf_colorimetry == RBCtristimulus) { |
| 536 |
> |
uv[0] = usum / (sum+FTINY); |
| 537 |
> |
uv[1] = vsum / (sum+FTINY); |
| 538 |
> |
} |
| 539 |
> |
} else if (rbf_colorimetry == RBCtristimulus) { |
| 540 |
|
uv[0] = uv[1] = 1. / |
| 541 |
|
(-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.); |
| 542 |
|
uv[0] *= 4.*sdv.spec.cx; |
| 543 |
|
uv[1] *= 9.*sdv.spec.cy; |
| 544 |
|
} |
| 545 |
|
} else { |
| 546 |
< |
if (assignD) { |
| 547 |
< |
varset("Dx", '=', -iovec[3]); |
| 548 |
< |
varset("Dy", '=', -iovec[4]); |
| 549 |
< |
varset("Dz", '=', -iovec[5]); |
| 550 |
< |
++eclock; |
| 546 |
> |
bsdf = val_next[oy]; |
| 547 |
> |
if (ox < sqres-1) { |
| 548 |
> |
if (assignD) { |
| 549 |
> |
varset("Dx", '=', -iovec[3]); |
| 550 |
> |
varset("Dy", '=', -iovec[4]); |
| 551 |
> |
varset("Dz", '=', -iovec[5]); |
| 552 |
> |
++eclock; |
| 553 |
> |
} |
| 554 |
> |
val_next[oy] = funvalue(funame, 6, iovec); |
| 555 |
|
} |
| 556 |
< |
bsdf = funvalue(funame, 6, iovec); |
| 557 |
< |
#if (NSSAMP > 0) |
| 558 |
< |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
| 556 |
> |
if (abs_diff(bsdf, val_next[oy]) > ssamp_thresh || |
| 557 |
> |
(ox && abs_diff(bsdf, val_last[oy]) > ssamp_thresh) || |
| 558 |
> |
(oy && abs_diff(bsdf, val_last[oy-1]) > ssamp_thresh) || |
| 559 |
> |
(oy < sqres-1 && |
| 560 |
> |
abs_diff(bsdf, val_next[oy+1]) > ssamp_thresh)) { |
| 561 |
|
int ssi; |
| 562 |
|
double ssa[4], ssvec[6], sum = 0; |
| 563 |
|
/* super-sample voxel */ |
| 564 |
< |
for (ssi = NSSAMP; ssi--; ) { |
| 565 |
< |
SDmultiSamp(ssa, 4, (ssi+frandom()) * |
| 566 |
< |
(1./NSSAMP)); |
| 567 |
< |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])/sqres, |
| 568 |
< |
1.-(iy+ssa[1])/sqres); |
| 564 |
> |
for (ssi = nssamp; ssi--; ) { |
| 565 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom()) / |
| 566 |
> |
(double)nssamp); |
| 567 |
> |
square2disk(ssvec, 1.-(ix+ssa[0])*sqfact, |
| 568 |
> |
1.-(iy+ssa[1])*sqfact); |
| 569 |
|
ssvec[2] = input_orient * |
| 570 |
|
sqrt(1. - ssvec[0]*ssvec[0] - |
| 571 |
|
ssvec[1]*ssvec[1]); |
| 572 |
< |
SDsquare2disk(ssvec+3, (ox+ssa[2])/sqres, |
| 573 |
< |
(oy+ssa[3])/sqres); |
| 572 |
> |
square2disk(ssvec+3, (ox+ssa[2])*sqfact, |
| 573 |
> |
(oy+ssa[3])*sqfact); |
| 574 |
|
ssvec[5] = output_orient * |
| 575 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
| 576 |
|
ssvec[4]*ssvec[4]); |
| 582 |
|
} |
| 583 |
|
sum += funvalue(funame, 6, ssvec); |
| 584 |
|
} |
| 585 |
< |
bsdf = sum/NSSAMP; |
| 585 |
> |
bsdf = sum / (double)nssamp; |
| 586 |
|
} |
| 441 |
– |
#endif |
| 587 |
|
} |
| 588 |
|
if (pctcull >= 0) |
| 589 |
|
putbinary(&bsdf, sizeof(bsdf), 1, ofp); |
| 599 |
|
fprintf(uvfp[1], "\t%.3e\n", uv[1]); |
| 600 |
|
} |
| 601 |
|
} |
| 602 |
< |
last_bsdf = bsdf; |
| 602 |
> |
if (val_last != NULL) |
| 603 |
> |
val_last[oy] = bsdf; |
| 604 |
|
} |
| 605 |
|
} |
| 606 |
|
if (rbf != NULL) |
| 608 |
|
prog_show((ix*sqres+iy+1.)/(sqres*sqres)); |
| 609 |
|
} |
| 610 |
|
prog_done(); |
| 611 |
+ |
if (val_last != NULL) { |
| 612 |
+ |
free(val_last); |
| 613 |
+ |
if (val_next != NULL) free(val_next); |
| 614 |
+ |
if (sdv_next != NULL) free(sdv_next); |
| 615 |
+ |
} |
| 616 |
|
if (pctcull >= 0) { /* finish output */ |
| 617 |
|
if (pclose(ofp)) { |
| 618 |
|
fprintf(stderr, "%s: error running rttree_reduce on Y\n", |
| 649 |
|
static int |
| 650 |
|
wrap_up(void) |
| 651 |
|
{ |
| 652 |
< |
char cmd[8192]; |
| 652 |
> |
char cmd[32700]; |
| 653 |
|
|
| 654 |
|
if (bsdf_manuf[0]) { |
| 655 |
|
add_wbsdf("-f", 1); |
| 700 |
|
} |
| 701 |
|
#endif |
| 702 |
|
|
| 703 |
+ |
#define HEAD_BUFLEN 10240 |
| 704 |
+ |
static char head_buf[HEAD_BUFLEN]; |
| 705 |
+ |
static int cur_headlen = 0; |
| 706 |
+ |
|
| 707 |
+ |
/* Record header line as comment associated with this SIR input */ |
| 708 |
+ |
static int |
| 709 |
+ |
record2header(char *s) |
| 710 |
+ |
{ |
| 711 |
+ |
int len = strlen(s); |
| 712 |
+ |
|
| 713 |
+ |
if (cur_headlen+len >= HEAD_BUFLEN-6) |
| 714 |
+ |
return(0); |
| 715 |
+ |
/* includes EOL */ |
| 716 |
+ |
strcpy(head_buf+cur_headlen, s); |
| 717 |
+ |
cur_headlen += len; |
| 718 |
+ |
|
| 719 |
+ |
#if defined(_WIN32) || defined(_WIN64) |
| 720 |
+ |
if (head_buf[cur_headlen-1] == '\n') |
| 721 |
+ |
head_buf[cur_headlen-1] = '\t'; |
| 722 |
+ |
#endif |
| 723 |
+ |
return(1); |
| 724 |
+ |
} |
| 725 |
+ |
|
| 726 |
+ |
/* Finish off header for this file */ |
| 727 |
+ |
static void |
| 728 |
+ |
done_header(void) |
| 729 |
+ |
{ |
| 730 |
+ |
while (cur_headlen > 0 && isspace(head_buf[cur_headlen-1])) |
| 731 |
+ |
--cur_headlen; |
| 732 |
+ |
head_buf[cur_headlen] = '\0'; |
| 733 |
+ |
if (!cur_headlen) |
| 734 |
+ |
return; |
| 735 |
+ |
add_wbsdf("-C", 1); |
| 736 |
+ |
add_wbsdf(head_buf, 0); |
| 737 |
+ |
head_buf[cur_headlen=0] = '\0'; |
| 738 |
+ |
} |
| 739 |
+ |
|
| 740 |
|
/* Read in BSDF and interpolate as tensor tree representation */ |
| 741 |
|
int |
| 742 |
|
main(int argc, char *argv[]) |
| 743 |
|
{ |
| 744 |
< |
static char tfmt[2][4] = {"t4", "t3"}; |
| 745 |
< |
int dofwd = 0, dobwd = 1; |
| 746 |
< |
char buf[2048]; |
| 747 |
< |
int i, na; |
| 744 |
> |
static const char tfmt[2][4] = {"t4", "t3"}; |
| 745 |
> |
int dofwd = 0, dobwd = 1; |
| 746 |
> |
int nsirs = 0; |
| 747 |
> |
char buf[1024]; |
| 748 |
> |
int i; |
| 749 |
|
|
| 750 |
|
progname = argv[0]; |
| 751 |
|
esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
| 752 |
|
esupport &= ~(E_INCHAN|E_OUTCHAN); |
| 753 |
|
scompile("PI:3.14159265358979323846", NULL, 0); |
| 754 |
|
biggerlib(); |
| 755 |
< |
for (i = 1; i < argc-1 && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
| 756 |
< |
switch (argv[i][1]) { /* get options */ |
| 755 |
> |
strcpy(buf, "File produced by: "); |
| 756 |
> |
if (convert_commandline(buf+18, sizeof(buf)-18, argv) != NULL) { |
| 757 |
> |
add_wbsdf("-C", 1); add_wbsdf(buf, 0); |
| 758 |
> |
} |
| 759 |
> |
for (i = 1; i < argc; i++) |
| 760 |
> |
if ((argv[i][0] == '-') | (argv[i][0] == '+')) { |
| 761 |
> |
switch (argv[i][1]) { /* get option */ |
| 762 |
|
case 'e': |
| 763 |
|
scompile(argv[++i], NULL, 0); |
| 764 |
+ |
if (single_plane_incident < 0) |
| 765 |
+ |
single_plane_incident = 0; |
| 766 |
|
break; |
| 767 |
|
case 'f': |
| 768 |
|
if (!argv[i][2]) { |
| 769 |
|
if (strchr(argv[++i], '=') != NULL) { |
| 770 |
|
add_wbsdf("-f", 1); |
| 771 |
|
add_wbsdf(argv[i], 1); |
| 772 |
< |
} else |
| 773 |
< |
fcompile(argv[i]); |
| 772 |
> |
} else { |
| 773 |
> |
char *fpath = getpath(argv[i], |
| 774 |
> |
getrlibpath(), 0); |
| 775 |
> |
if (fpath == NULL) { |
| 776 |
> |
fprintf(stderr, |
| 777 |
> |
"%s: cannot find file '%s'\n", |
| 778 |
> |
argv[0], argv[i]); |
| 779 |
> |
return(1); |
| 780 |
> |
} |
| 781 |
> |
fcompile(fpath); |
| 782 |
> |
if (single_plane_incident < 0) |
| 783 |
> |
single_plane_incident = 0; |
| 784 |
> |
} |
| 785 |
|
} else |
| 786 |
|
dofwd = (argv[i][0] == '+'); |
| 787 |
|
break; |
| 788 |
+ |
case 'a': |
| 789 |
+ |
recip = (argv[i][0] == '+') ? " -a" : ""; |
| 790 |
+ |
break; |
| 791 |
|
case 'b': |
| 792 |
|
dobwd = (argv[i][0] == '+'); |
| 793 |
|
break; |
| 794 |
+ |
case 'n': |
| 795 |
+ |
nssamp = atoi(argv[++i]); |
| 796 |
+ |
if (nssamp <= 0) |
| 797 |
+ |
goto userr; |
| 798 |
+ |
break; |
| 799 |
+ |
case 's': |
| 800 |
+ |
ssamp_thresh = atof(argv[++i]); |
| 801 |
+ |
if (ssamp_thresh <= FTINY) |
| 802 |
+ |
goto userr; |
| 803 |
+ |
break; |
| 804 |
|
case 't': |
| 805 |
|
switch (argv[i][2]) { |
| 806 |
|
case '3': |
| 836 |
|
default: |
| 837 |
|
goto userr; |
| 838 |
|
} |
| 839 |
< |
strcpy(buf, "File produced by: "); |
| 840 |
< |
if (convert_commandline(buf+18, sizeof(buf)-18, argv) != NULL) { |
| 841 |
< |
add_wbsdf("-C", 1); add_wbsdf(buf, 0); |
| 842 |
< |
} |
| 843 |
< |
if (single_plane_incident >= 0) { /* function-based BSDF? */ |
| 839 |
> |
} else { /* input SIR or function */ |
| 840 |
> |
FILE *fpin; |
| 841 |
> |
if (!nsirs & (single_plane_incident >= 0)) |
| 842 |
> |
break; /* must be a function */ |
| 843 |
> |
if (nsirs >= 4) { |
| 844 |
> |
fprintf(stderr, "At most 4 SIR inputs supported\n"); |
| 845 |
> |
goto userr; |
| 846 |
> |
} |
| 847 |
> |
fpin = fopen(argv[i], "rb"); /* open SIR file */ |
| 848 |
> |
if (fpin == NULL) { |
| 849 |
> |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
| 850 |
> |
progname, argv[i]); |
| 851 |
> |
return(1); |
| 852 |
> |
} |
| 853 |
> |
sprintf(buf, "%s:\n", argv[i]); |
| 854 |
> |
record2header(buf); |
| 855 |
> |
sir_headshare = &record2header; |
| 856 |
> |
if (!load_bsdf_rep(fpin)) |
| 857 |
> |
return(1); |
| 858 |
> |
fclose(fpin); |
| 859 |
> |
done_header(); |
| 860 |
> |
sprintf(buf, "Interpolating component '%s'", argv[i]); |
| 861 |
> |
prog_start(buf); |
| 862 |
> |
if (!nsirs++) { |
| 863 |
> |
add_wbsdf("-a", 1); |
| 864 |
> |
add_wbsdf(tfmt[single_plane_incident], 1); |
| 865 |
> |
} |
| 866 |
> |
if (single_plane_incident) |
| 867 |
> |
eval_isotropic(NULL); |
| 868 |
> |
else |
| 869 |
> |
eval_anisotropic(NULL); |
| 870 |
> |
} |
| 871 |
> |
if (i < argc) { /* function-based BSDF? */ |
| 872 |
|
void (*evf)(char *s) = single_plane_incident ? |
| 873 |
|
eval_isotropic : eval_anisotropic; |
| 874 |
|
if (i != argc-1 || fundefined(argv[i]) < 3) { |
| 899 |
|
prog_start("Evaluating inside->outside transmission"); |
| 900 |
|
(*evf)(argv[i]); |
| 901 |
|
} |
| 902 |
< |
return(wrap_up()); |
| 902 |
> |
} else if (!nsirs) { /* else load SIR from stdin? */ |
| 903 |
> |
record2header("<stdin>:\n"); |
| 904 |
> |
sir_headshare = &record2header; |
| 905 |
> |
if (!load_bsdf_rep(stdin)) |
| 906 |
> |
return(1); |
| 907 |
> |
done_header(); |
| 908 |
> |
prog_start("Interpolating from standard input"); |
| 909 |
> |
add_wbsdf("-a", 1); |
| 910 |
> |
add_wbsdf(tfmt[single_plane_incident], 1); |
| 911 |
> |
if (single_plane_incident) /* resample dist. */ |
| 912 |
> |
eval_isotropic(NULL); |
| 913 |
> |
else |
| 914 |
> |
eval_anisotropic(NULL); |
| 915 |
|
} |
| 916 |
< |
if (i < argc) { /* open input files if given */ |
| 657 |
< |
int nbsdf = 0; |
| 658 |
< |
for ( ; i < argc; i++) { /* interpolate each component */ |
| 659 |
< |
char pbuf[256]; |
| 660 |
< |
FILE *fpin = fopen(argv[i], "rb"); |
| 661 |
< |
if (fpin == NULL) { |
| 662 |
< |
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
| 663 |
< |
progname, argv[i]); |
| 664 |
< |
return(1); |
| 665 |
< |
} |
| 666 |
< |
if (!load_bsdf_rep(fpin)) |
| 667 |
< |
return(1); |
| 668 |
< |
fclose(fpin); |
| 669 |
< |
sprintf(pbuf, "Interpolating component '%s'", argv[i]); |
| 670 |
< |
prog_start(pbuf); |
| 671 |
< |
if (!nbsdf++) { |
| 672 |
< |
add_wbsdf("-a", 1); |
| 673 |
< |
add_wbsdf(tfmt[single_plane_incident], 1); |
| 674 |
< |
} |
| 675 |
< |
if (single_plane_incident) |
| 676 |
< |
eval_isotropic(NULL); |
| 677 |
< |
else |
| 678 |
< |
eval_anisotropic(NULL); |
| 679 |
< |
} |
| 680 |
< |
return(wrap_up()); |
| 681 |
< |
} |
| 682 |
< |
SET_FILE_BINARY(stdin); /* load from stdin */ |
| 683 |
< |
if (!load_bsdf_rep(stdin)) |
| 684 |
< |
return(1); |
| 685 |
< |
prog_start("Interpolating from standard input"); |
| 686 |
< |
add_wbsdf("-a", 1); |
| 687 |
< |
add_wbsdf(tfmt[single_plane_incident], 1); |
| 688 |
< |
if (single_plane_incident) /* resample dist. */ |
| 689 |
< |
eval_isotropic(NULL); |
| 690 |
< |
else |
| 691 |
< |
eval_anisotropic(NULL); |
| 692 |
< |
|
| 693 |
< |
return(wrap_up()); |
| 916 |
> |
return(wrap_up()); /* call wrapBSDF */ |
| 917 |
|
userr: |
| 918 |
|
fprintf(stderr, |
| 919 |
< |
"Usage: %s [-g Nlog2][-t pctcull][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
| 919 |
> |
"Usage: %s [{+|-}a][-g Nlog2][-t pctcull][-n nss][-s thresh][-l maxlobes][bsdf.sir ..] > bsdf.xml\n", |
| 920 |
|
progname); |
| 921 |
|
fprintf(stderr, |
| 922 |
< |
" or: %s -t{3|4} [-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
| 922 |
> |
" or: %s -t{3|4} [{+|-}a][-g Nlog2][-t pctcull][-n nss][-s thresh][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
| 923 |
|
progname); |
| 924 |
|
return(1); |
| 925 |
|
} |
