| 8 |
|
*/ |
| 9 |
|
|
| 10 |
|
#define _USE_MATH_DEFINES |
| 11 |
– |
#include <stdio.h> |
| 11 |
|
#include <stdlib.h> |
| 12 |
|
#include <math.h> |
| 13 |
|
#include "random.h" |
| 18 |
|
#include "bsdfrep.h" |
| 19 |
|
/* global argv[0] */ |
| 20 |
|
char *progname; |
| 21 |
+ |
/* reciprocity averaging option */ |
| 22 |
+ |
static const char *recip = " -a"; |
| 23 |
|
/* percentage to cull (<0 to turn off) */ |
| 24 |
|
static double pctcull = 90.; |
| 25 |
|
/* sampling order */ |
| 26 |
|
static int samp_order = 6; |
| 27 |
|
/* super-sampling threshold */ |
| 28 |
< |
const double ssamp_thresh = 0.35; |
| 28 |
> |
static double ssamp_thresh = 0.35; |
| 29 |
|
/* number of super-samples */ |
| 30 |
|
#ifndef NSSAMP |
| 31 |
< |
#define NSSAMP 100 |
| 31 |
> |
#define NSSAMP 256 |
| 32 |
|
#endif |
| 33 |
|
/* limit on number of RBF lobes */ |
| 34 |
|
static int lobe_lim = 15000; |
| 39 |
|
static char *wrapBSDF[MAXCARG] = {"wrapBSDF", "-U"}; |
| 40 |
|
static int wbsdfac = 2; |
| 41 |
|
|
| 42 |
< |
/* Add argument to wrapBSDF, allocating space if isstatic */ |
| 42 |
> |
/* Add argument to wrapBSDF, allocating space if !isstatic */ |
| 43 |
|
static void |
| 44 |
|
add_wbsdf(const char *arg, int isstatic) |
| 45 |
|
{ |
| 128 |
|
eval_isotropic(char *funame) |
| 129 |
|
{ |
| 130 |
|
const int sqres = 1<<samp_order; |
| 131 |
+ |
const double sqfact = 1./(double)sqres; |
| 132 |
+ |
float *ryval = NULL; |
| 133 |
+ |
char *rtrip = NULL; |
| 134 |
|
FILE *ofp, *uvfp[2]; |
| 135 |
|
int assignD = 0; |
| 136 |
|
char cmd[128]; |
| 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 |
+ |
#if (NSSAMP > 0) |
| 195 |
+ |
rtrip = (char *)malloc(sqres); /* track sample triggerings */ |
| 196 |
+ |
ryval = (float *)calloc(sqres, sizeof(float)); |
| 197 |
+ |
#endif |
| 198 |
|
/* run through directions */ |
| 199 |
|
for (ix = 0; ix < sqres/2; ix++) { |
| 200 |
< |
RBFNODE *rbf = NULL; |
| 201 |
< |
iovec[0] = 2.*(ix+.5)/sqres - 1.; |
| 202 |
< |
iovec[1] = .0; |
| 203 |
< |
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0]); |
| 200 |
> |
const int zipsgn = (ix & 1)*2 - 1; |
| 201 |
> |
RBFNODE *rbf = NULL; |
| 202 |
> |
iovec[0] = 2.*sqfact*(ix+.5) - 1.; |
| 203 |
> |
iovec[1] = zipsgn*sqfact*.5; |
| 204 |
> |
iovec[2] = input_orient * sqrt(1. - iovec[0]*iovec[0] |
| 205 |
> |
- iovec[1]*iovec[1]); |
| 206 |
|
if (funame == NULL) |
| 207 |
|
rbf = advect_rbf(iovec, lobe_lim); |
| 208 |
|
for (ox = 0; ox < sqres; ox++) { |
| 209 |
< |
float last_bsdf = -1; |
| 209 |
> |
SDValue sdv_next; |
| 210 |
> |
SDsquare2disk(iovec+3, (ox+.5)*sqfact, .5*sqfact); |
| 211 |
> |
iovec[5] = output_orient * |
| 212 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 213 |
> |
if (funame == NULL) { |
| 214 |
> |
eval_rbfcol(&sdv_next, rbf, iovec+3); |
| 215 |
> |
} else { |
| 216 |
> |
sdv_next.spec = c_dfcolor; |
| 217 |
> |
if (assignD) { |
| 218 |
> |
varset("Dx", '=', -iovec[3]); |
| 219 |
> |
varset("Dy", '=', -iovec[4]); |
| 220 |
> |
varset("Dz", '=', -iovec[5]); |
| 221 |
> |
++eclock; |
| 222 |
> |
} |
| 223 |
> |
sdv_next.cieY = funvalue(funame, 6, iovec); |
| 224 |
> |
} |
| 225 |
> |
/* |
| 226 |
> |
* Super-sample when we detect a difference from before |
| 227 |
> |
* or after in this row, or the previous row in this column. |
| 228 |
> |
* Also super-sample if the previous neighbors performed |
| 229 |
> |
* super-sampling, regardless of any differences. |
| 230 |
> |
*/ |
| 231 |
> |
memset(rtrip, 0, sqres); |
| 232 |
|
for (oy = 0; oy < sqres; oy++) { |
| 233 |
< |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
| 234 |
< |
iovec[5] = output_orient * |
| 233 |
> |
int trip; |
| 234 |
> |
bsdf = sdv_next.cieY; /* keeping one step ahead... */ |
| 235 |
> |
if (oy < sqres-1) { |
| 236 |
> |
SDsquare2disk(iovec+3, (ox+.5)*sqfact, (oy+1.5)*sqfact); |
| 237 |
> |
iovec[5] = output_orient * |
| 238 |
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 239 |
+ |
} |
| 240 |
|
if (funame == NULL) { |
| 241 |
< |
SDValue sdv; |
| 242 |
< |
eval_rbfcol(&sdv, rbf, iovec+3); |
| 243 |
< |
bsdf = sdv.cieY; |
| 241 |
> |
SDValue sdv = sdv_next; |
| 242 |
> |
if (oy < sqres-1) |
| 243 |
> |
eval_rbfcol(&sdv_next, rbf, iovec+3); |
| 244 |
> |
#if (NSSAMP > 0) |
| 245 |
> |
trip = (abs_diff(bsdf, sdv_next.cieY) > ssamp_thresh || |
| 246 |
> |
(ox && abs_diff(bsdf, ryval[oy]) > ssamp_thresh) || |
| 247 |
> |
(oy && abs_diff(bsdf, ryval[oy-1]) > ssamp_thresh)); |
| 248 |
> |
if (trip | rtrip[oy] || (oy && rtrip[oy-1])) { |
| 249 |
> |
int ssi; |
| 250 |
> |
double ssa[2], sum = 0, usum = 0, vsum = 0; |
| 251 |
> |
/* super-sample voxel */ |
| 252 |
> |
for (ssi = NSSAMP; ssi--; ) { |
| 253 |
> |
SDmultiSamp(ssa, 2, (ssi+frandom()) * |
| 254 |
> |
(1./NSSAMP)); |
| 255 |
> |
SDsquare2disk(iovec+3, (ox+ssa[0])*sqfact, |
| 256 |
> |
(oy+ssa[1])*sqfact); |
| 257 |
> |
iovec[5] = output_orient * |
| 258 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 259 |
> |
eval_rbfcol(&sdv, rbf, iovec+3); |
| 260 |
> |
sum += sdv.cieY; |
| 261 |
> |
if (rbf_colorimetry == RBCtristimulus) { |
| 262 |
> |
sdv.cieY /= |
| 263 |
> |
-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.; |
| 264 |
> |
usum += 4.*sdv.spec.cx * sdv.cieY; |
| 265 |
> |
vsum += 9.*sdv.spec.cy * sdv.cieY; |
| 266 |
> |
} |
| 267 |
> |
} |
| 268 |
> |
bsdf = sum * (1./NSSAMP); |
| 269 |
> |
if (rbf_colorimetry == RBCtristimulus) { |
| 270 |
> |
uv[0] = usum / (sum+FTINY); |
| 271 |
> |
uv[1] = vsum / (sum+FTINY); |
| 272 |
> |
} |
| 273 |
> |
} else |
| 274 |
> |
#endif |
| 275 |
|
if (rbf_colorimetry == RBCtristimulus) { |
| 209 |
– |
c_ccvt(&sdv.spec, C_CSXY); |
| 276 |
|
uv[0] = uv[1] = 1. / |
| 277 |
|
(-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.); |
| 278 |
|
uv[0] *= 4.*sdv.spec.cx; |
| 279 |
|
uv[1] *= 9.*sdv.spec.cy; |
| 280 |
|
} |
| 281 |
|
} else { |
| 282 |
< |
if (assignD) { |
| 283 |
< |
varset("Dx", '=', -iovec[3]); |
| 284 |
< |
varset("Dy", '=', -iovec[4]); |
| 285 |
< |
varset("Dz", '=', -iovec[5]); |
| 286 |
< |
++eclock; |
| 282 |
> |
if (oy < sqres-1) { |
| 283 |
> |
if (assignD) { |
| 284 |
> |
varset("Dx", '=', -iovec[3]); |
| 285 |
> |
varset("Dy", '=', -iovec[4]); |
| 286 |
> |
varset("Dz", '=', -iovec[5]); |
| 287 |
> |
++eclock; |
| 288 |
> |
} |
| 289 |
> |
sdv_next.cieY = funvalue(funame, 6, iovec); |
| 290 |
|
} |
| 222 |
– |
bsdf = funvalue(funame, 6, iovec); |
| 291 |
|
#if (NSSAMP > 0) |
| 292 |
< |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
| 292 |
> |
trip = (abs_diff(bsdf, sdv_next.cieY) > ssamp_thresh || |
| 293 |
> |
(ox && abs_diff(bsdf, ryval[oy]) > ssamp_thresh) || |
| 294 |
> |
(oy && abs_diff(bsdf, ryval[oy-1]) > ssamp_thresh)); |
| 295 |
> |
if (trip | rtrip[oy] || (oy && rtrip[oy-1])) { |
| 296 |
|
int ssi; |
| 297 |
< |
double ssa[3], ssvec[6], sum = 0; |
| 297 |
> |
double ssa[4], ssvec[6], sum = 0; |
| 298 |
|
/* super-sample voxel */ |
| 299 |
|
for (ssi = NSSAMP; ssi--; ) { |
| 300 |
< |
SDmultiSamp(ssa, 3, (ssi+frandom()) * |
| 300 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom()) * |
| 301 |
|
(1./NSSAMP)); |
| 302 |
< |
ssvec[0] = 2.*(ix+ssa[0])/sqres - 1.; |
| 303 |
< |
ssvec[1] = .0; |
| 304 |
< |
ssvec[2] = input_orient * |
| 305 |
< |
sqrt(1. - ssvec[0]*ssvec[0]); |
| 306 |
< |
SDsquare2disk(ssvec+3, (ox+ssa[1])/sqres, |
| 307 |
< |
(oy+ssa[2])/sqres); |
| 302 |
> |
ssvec[0] = 2.*sqfact*(ix+ssa[0]) - 1.; |
| 303 |
> |
ssvec[1] = zipsgn*sqfact*ssa[1]; |
| 304 |
> |
ssvec[2] = 1. - ssvec[0]*ssvec[0] |
| 305 |
> |
- ssvec[1]*ssvec[1]; |
| 306 |
> |
if (ssvec[2] < .0) { |
| 307 |
> |
ssvec[1] = 0; |
| 308 |
> |
ssvec[2] = 1. - ssvec[0]*ssvec[0]; |
| 309 |
> |
} |
| 310 |
> |
ssvec[2] = input_orient * sqrt(ssvec[2]); |
| 311 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[2])*sqfact, |
| 312 |
> |
(oy+ssa[3])*sqfact); |
| 313 |
|
ssvec[5] = output_orient * |
| 314 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
| 315 |
|
ssvec[4]*ssvec[4]); |
| 321 |
|
} |
| 322 |
|
sum += funvalue(funame, 6, ssvec); |
| 323 |
|
} |
| 324 |
< |
bsdf = sum/NSSAMP; |
| 324 |
> |
bsdf = sum * (1./NSSAMP); |
| 325 |
|
} |
| 326 |
|
#endif |
| 327 |
|
} |
| 328 |
|
if (pctcull >= 0) |
| 329 |
< |
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
| 329 |
> |
putbinary(&bsdf, sizeof(bsdf), 1, ofp); |
| 330 |
|
else |
| 331 |
|
fprintf(ofp, "\t%.3e\n", bsdf); |
| 332 |
|
|
| 333 |
|
if (rbf_colorimetry == RBCtristimulus) { |
| 334 |
|
if (pctcull >= 0) { |
| 335 |
< |
fwrite(&uv[0], sizeof(*uv), 1, uvfp[0]); |
| 336 |
< |
fwrite(&uv[1], sizeof(*uv), 1, uvfp[1]); |
| 335 |
> |
putbinary(&uv[0], sizeof(*uv), 1, uvfp[0]); |
| 336 |
> |
putbinary(&uv[1], sizeof(*uv), 1, uvfp[1]); |
| 337 |
|
} else { |
| 338 |
|
fprintf(uvfp[0], "\t%.3e\n", uv[0]); |
| 339 |
|
fprintf(uvfp[1], "\t%.3e\n", uv[1]); |
| 340 |
|
} |
| 341 |
|
} |
| 342 |
< |
last_bsdf = bsdf; |
| 342 |
> |
if (ryval != NULL) { |
| 343 |
> |
rtrip[oy] = trip; |
| 344 |
> |
ryval[oy] = bsdf; |
| 345 |
> |
} |
| 346 |
|
} |
| 347 |
|
} |
| 348 |
|
if (rbf != NULL) |
| 349 |
|
free(rbf); |
| 350 |
< |
prog_show((ix+1.)*(2./sqres)); |
| 350 |
> |
prog_show((ix+1.)*(2.*sqfact)); |
| 351 |
|
} |
| 352 |
|
prog_done(); |
| 353 |
+ |
if (ryval != NULL) { |
| 354 |
+ |
free(rtrip); |
| 355 |
+ |
free(ryval); |
| 356 |
+ |
} |
| 357 |
|
if (pctcull >= 0) { /* finish output */ |
| 358 |
|
if (pclose(ofp)) { |
| 359 |
|
fprintf(stderr, "%s: error running rttree_reduce on Y\n", |
| 396 |
|
eval_anisotropic(char *funame) |
| 397 |
|
{ |
| 398 |
|
const int sqres = 1<<samp_order; |
| 399 |
+ |
const double sqfact = 1./(double)sqres; |
| 400 |
+ |
float *ryval = NULL; |
| 401 |
+ |
char *rtrip = NULL; |
| 402 |
|
FILE *ofp, *uvfp[2]; |
| 403 |
|
int assignD = 0; |
| 404 |
|
char cmd[128]; |
| 408 |
|
|
| 409 |
|
if (pctcull >= 0) { |
| 410 |
|
const char *avgopt = (input_orient>0 ^ output_orient>0) |
| 411 |
< |
? "" : " -a"; |
| 411 |
> |
? "" : recip; |
| 412 |
|
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d > %s", |
| 413 |
|
avgopt, pctcull, samp_order, |
| 414 |
|
create_component_file(0)); |
| 464 |
|
} |
| 465 |
|
if (funame != NULL) /* need to assign Dx, Dy, Dz? */ |
| 466 |
|
assignD = (fundefined(funame) < 6); |
| 467 |
+ |
#if (NSSAMP > 0) |
| 468 |
+ |
rtrip = (char *)malloc(sqres); /* track sample triggerings */ |
| 469 |
+ |
ryval = (float *)calloc(sqres, sizeof(float)); |
| 470 |
+ |
#endif |
| 471 |
|
/* run through directions */ |
| 472 |
|
for (ix = 0; ix < sqres; ix++) |
| 473 |
|
for (iy = 0; iy < sqres; iy++) { |
| 474 |
|
RBFNODE *rbf = NULL; /* Klems reversal */ |
| 475 |
< |
SDsquare2disk(iovec, 1.-(ix+.5)/sqres, 1.-(iy+.5)/sqres); |
| 475 |
> |
SDsquare2disk(iovec, 1.-(ix+.5)*sqfact, 1.-(iy+.5)*sqfact); |
| 476 |
|
iovec[2] = input_orient * |
| 477 |
|
sqrt(1. - iovec[0]*iovec[0] - iovec[1]*iovec[1]); |
| 478 |
|
if (funame == NULL) |
| 479 |
|
rbf = advect_rbf(iovec, lobe_lim); |
| 480 |
|
for (ox = 0; ox < sqres; ox++) { |
| 481 |
< |
float last_bsdf = -1; |
| 481 |
> |
SDValue sdv_next; |
| 482 |
> |
SDsquare2disk(iovec+3, (ox+.5)*sqfact, .5*sqfact); |
| 483 |
> |
iovec[5] = output_orient * |
| 484 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 485 |
> |
if (funame == NULL) { |
| 486 |
> |
eval_rbfcol(&sdv_next, rbf, iovec+3); |
| 487 |
> |
} else { |
| 488 |
> |
sdv_next.spec = c_dfcolor; |
| 489 |
> |
if (assignD) { |
| 490 |
> |
varset("Dx", '=', -iovec[3]); |
| 491 |
> |
varset("Dy", '=', -iovec[4]); |
| 492 |
> |
varset("Dz", '=', -iovec[5]); |
| 493 |
> |
++eclock; |
| 494 |
> |
} |
| 495 |
> |
sdv_next.cieY = funvalue(funame, 6, iovec); |
| 496 |
> |
} |
| 497 |
> |
/* |
| 498 |
> |
* Super-sample when we detect a difference from before |
| 499 |
> |
* or after in this row, or the previous row in this column. |
| 500 |
> |
* Also super-sample if the previous neighbors performed |
| 501 |
> |
* super-sampling, regardless of any differences. |
| 502 |
> |
*/ |
| 503 |
> |
memset(rtrip, 0, sqres); |
| 504 |
|
for (oy = 0; oy < sqres; oy++) { |
| 505 |
< |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
| 506 |
< |
iovec[5] = output_orient * |
| 505 |
> |
int trip; |
| 506 |
> |
bsdf = sdv_next.cieY; /* keeping one step ahead... */ |
| 507 |
> |
if (oy < sqres-1) { |
| 508 |
> |
SDsquare2disk(iovec+3, (ox+.5)*sqfact, (oy+1.5)*sqfact); |
| 509 |
> |
iovec[5] = output_orient * |
| 510 |
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 511 |
+ |
} |
| 512 |
|
if (funame == NULL) { |
| 513 |
< |
SDValue sdv; |
| 514 |
< |
eval_rbfcol(&sdv, rbf, iovec+3); |
| 515 |
< |
bsdf = sdv.cieY; |
| 513 |
> |
SDValue sdv = sdv_next; |
| 514 |
> |
if (oy < sqres-1) |
| 515 |
> |
eval_rbfcol(&sdv_next, rbf, iovec+3); |
| 516 |
> |
#if (NSSAMP > 0) |
| 517 |
> |
trip = (abs_diff(bsdf, sdv_next.cieY) > ssamp_thresh || |
| 518 |
> |
(ox && abs_diff(bsdf, ryval[oy]) > ssamp_thresh) || |
| 519 |
> |
(oy && abs_diff(bsdf, ryval[oy-1]) > ssamp_thresh)); |
| 520 |
> |
if (trip | rtrip[oy] || (oy && rtrip[oy-1])) { |
| 521 |
> |
int ssi; |
| 522 |
> |
double ssa[2], sum = 0, usum = 0, vsum = 0; |
| 523 |
> |
/* super-sample voxel */ |
| 524 |
> |
for (ssi = NSSAMP; ssi--; ) { |
| 525 |
> |
SDmultiSamp(ssa, 2, (ssi+frandom()) * |
| 526 |
> |
(1./NSSAMP)); |
| 527 |
> |
SDsquare2disk(iovec+3, (ox+ssa[0])*sqfact, |
| 528 |
> |
(oy+ssa[1])*sqfact); |
| 529 |
> |
iovec[5] = output_orient * |
| 530 |
> |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
| 531 |
> |
eval_rbfcol(&sdv, rbf, iovec+3); |
| 532 |
> |
sum += sdv.cieY; |
| 533 |
> |
if (rbf_colorimetry == RBCtristimulus) { |
| 534 |
> |
sdv.cieY /= |
| 535 |
> |
-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.; |
| 536 |
> |
usum += 4.*sdv.spec.cx * sdv.cieY; |
| 537 |
> |
vsum += 9.*sdv.spec.cy * sdv.cieY; |
| 538 |
> |
} |
| 539 |
> |
} |
| 540 |
> |
bsdf = sum * (1./NSSAMP); |
| 541 |
> |
if (rbf_colorimetry == RBCtristimulus) { |
| 542 |
> |
uv[0] = usum / (sum+FTINY); |
| 543 |
> |
uv[1] = vsum / (sum+FTINY); |
| 544 |
> |
} |
| 545 |
> |
} else |
| 546 |
> |
#endif |
| 547 |
|
if (rbf_colorimetry == RBCtristimulus) { |
| 401 |
– |
c_ccvt(&sdv.spec, C_CSXY); |
| 548 |
|
uv[0] = uv[1] = 1. / |
| 549 |
|
(-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.); |
| 550 |
|
uv[0] *= 4.*sdv.spec.cx; |
| 551 |
|
uv[1] *= 9.*sdv.spec.cy; |
| 552 |
|
} |
| 553 |
|
} else { |
| 554 |
< |
if (assignD) { |
| 555 |
< |
varset("Dx", '=', -iovec[3]); |
| 556 |
< |
varset("Dy", '=', -iovec[4]); |
| 557 |
< |
varset("Dz", '=', -iovec[5]); |
| 558 |
< |
++eclock; |
| 554 |
> |
if (oy < sqres-1) { |
| 555 |
> |
if (assignD) { |
| 556 |
> |
varset("Dx", '=', -iovec[3]); |
| 557 |
> |
varset("Dy", '=', -iovec[4]); |
| 558 |
> |
varset("Dz", '=', -iovec[5]); |
| 559 |
> |
++eclock; |
| 560 |
> |
} |
| 561 |
> |
sdv_next.cieY = funvalue(funame, 6, iovec); |
| 562 |
|
} |
| 414 |
– |
bsdf = funvalue(funame, 6, iovec); |
| 563 |
|
#if (NSSAMP > 0) |
| 564 |
< |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
| 564 |
> |
trip = (abs_diff(bsdf, sdv_next.cieY) > ssamp_thresh || |
| 565 |
> |
(ox && abs_diff(bsdf, ryval[oy]) > ssamp_thresh) || |
| 566 |
> |
(oy && abs_diff(bsdf, ryval[oy-1]) > ssamp_thresh)); |
| 567 |
> |
if (trip | rtrip[oy] || (oy && rtrip[oy-1])) { |
| 568 |
|
int ssi; |
| 569 |
|
double ssa[4], ssvec[6], sum = 0; |
| 570 |
|
/* super-sample voxel */ |
| 571 |
|
for (ssi = NSSAMP; ssi--; ) { |
| 572 |
|
SDmultiSamp(ssa, 4, (ssi+frandom()) * |
| 573 |
|
(1./NSSAMP)); |
| 574 |
< |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])/sqres, |
| 575 |
< |
1.-(iy+ssa[1])/sqres); |
| 574 |
> |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])*sqfact, |
| 575 |
> |
1.-(iy+ssa[1])*sqfact); |
| 576 |
|
ssvec[2] = input_orient * |
| 577 |
|
sqrt(1. - ssvec[0]*ssvec[0] - |
| 578 |
|
ssvec[1]*ssvec[1]); |
| 579 |
< |
SDsquare2disk(ssvec+3, (ox+ssa[2])/sqres, |
| 580 |
< |
(oy+ssa[3])/sqres); |
| 579 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[2])*sqfact, |
| 580 |
> |
(oy+ssa[3])*sqfact); |
| 581 |
|
ssvec[5] = output_orient * |
| 582 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
| 583 |
|
ssvec[4]*ssvec[4]); |
| 589 |
|
} |
| 590 |
|
sum += funvalue(funame, 6, ssvec); |
| 591 |
|
} |
| 592 |
< |
bsdf = sum/NSSAMP; |
| 592 |
> |
bsdf = sum * (1./NSSAMP); |
| 593 |
|
} |
| 594 |
|
#endif |
| 595 |
|
} |
| 596 |
|
if (pctcull >= 0) |
| 597 |
< |
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
| 597 |
> |
putbinary(&bsdf, sizeof(bsdf), 1, ofp); |
| 598 |
|
else |
| 599 |
|
fprintf(ofp, "\t%.3e\n", bsdf); |
| 600 |
|
|
| 601 |
|
if (rbf_colorimetry == RBCtristimulus) { |
| 602 |
|
if (pctcull >= 0) { |
| 603 |
< |
fwrite(&uv[0], sizeof(*uv), 1, uvfp[0]); |
| 604 |
< |
fwrite(&uv[1], sizeof(*uv), 1, uvfp[1]); |
| 603 |
> |
putbinary(&uv[0], sizeof(*uv), 1, uvfp[0]); |
| 604 |
> |
putbinary(&uv[1], sizeof(*uv), 1, uvfp[1]); |
| 605 |
|
} else { |
| 606 |
|
fprintf(uvfp[0], "\t%.3e\n", uv[0]); |
| 607 |
|
fprintf(uvfp[1], "\t%.3e\n", uv[1]); |
| 608 |
|
} |
| 609 |
|
} |
| 610 |
< |
last_bsdf = bsdf; |
| 610 |
> |
if (ryval != NULL) { |
| 611 |
> |
rtrip[oy] = trip; |
| 612 |
> |
ryval[oy] = bsdf; |
| 613 |
> |
} |
| 614 |
|
} |
| 461 |
– |
} |
| 615 |
|
if (rbf != NULL) |
| 616 |
|
free(rbf); |
| 617 |
|
prog_show((ix*sqres+iy+1.)/(sqres*sqres)); |
| 618 |
|
} |
| 619 |
+ |
} |
| 620 |
|
prog_done(); |
| 621 |
+ |
if (ryval != NULL) { |
| 622 |
+ |
free(rtrip); |
| 623 |
+ |
free(ryval); |
| 624 |
+ |
} |
| 625 |
|
if (pctcull >= 0) { /* finish output */ |
| 626 |
|
if (pclose(ofp)) { |
| 627 |
|
fprintf(stderr, "%s: error running rttree_reduce on Y\n", |
| 723 |
|
esupport &= ~(E_INCHAN|E_OUTCHAN); |
| 724 |
|
scompile("PI:3.14159265358979323846", NULL, 0); |
| 725 |
|
biggerlib(); |
| 726 |
< |
for (i = 1; i < argc-1 && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
| 726 |
> |
for (i = 1; i < argc && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
| 727 |
|
switch (argv[i][1]) { /* get options */ |
| 728 |
|
case 'e': |
| 729 |
|
scompile(argv[++i], NULL, 0); |
| 730 |
+ |
if (single_plane_incident < 0) |
| 731 |
+ |
single_plane_incident = 0; |
| 732 |
|
break; |
| 733 |
|
case 'f': |
| 734 |
|
if (!argv[i][2]) { |
| 735 |
|
if (strchr(argv[++i], '=') != NULL) { |
| 736 |
|
add_wbsdf("-f", 1); |
| 737 |
|
add_wbsdf(argv[i], 1); |
| 738 |
< |
} else |
| 739 |
< |
fcompile(argv[i]); |
| 738 |
> |
} else { |
| 739 |
> |
char *fpath = getpath(argv[i], |
| 740 |
> |
getrlibpath(), 0); |
| 741 |
> |
if (fpath == NULL) { |
| 742 |
> |
fprintf(stderr, |
| 743 |
> |
"%s: cannot find file '%s'\n", |
| 744 |
> |
argv[0], argv[i]); |
| 745 |
> |
return(1); |
| 746 |
> |
} |
| 747 |
> |
fcompile(fpath); |
| 748 |
> |
if (single_plane_incident < 0) |
| 749 |
> |
single_plane_incident = 0; |
| 750 |
> |
} |
| 751 |
|
} else |
| 752 |
|
dofwd = (argv[i][0] == '+'); |
| 753 |
|
break; |
| 754 |
+ |
case 'a': |
| 755 |
+ |
recip = (argv[i][0] == '+') ? " -a" : ""; |
| 756 |
+ |
break; |
| 757 |
|
case 'b': |
| 758 |
|
dobwd = (argv[i][0] == '+'); |
| 759 |
|
break; |
| 807 |
|
goto userr; |
| 808 |
|
} |
| 809 |
|
++eclock; |
| 810 |
+ |
ssamp_thresh *= 0.5; /* lower sampling threshold */ |
| 811 |
|
add_wbsdf("-a", 1); |
| 812 |
|
add_wbsdf(tfmt[single_plane_incident], 1); |
| 813 |
|
if (dofwd) { |
| 870 |
|
return(wrap_up()); |
| 871 |
|
userr: |
| 872 |
|
fprintf(stderr, |
| 873 |
< |
"Usage: %s [-g Nlog2][-t pctcull][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
| 873 |
> |
"Usage: %s [{+|-}a][-g Nlog2][-t pctcull][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
| 874 |
|
progname); |
| 875 |
|
fprintf(stderr, |
| 876 |
< |
" or: %s -t{3|4} [-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
| 876 |
> |
" or: %s -t{3|4} [{+|-}a][-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
| 877 |
|
progname); |
| 878 |
|
return(1); |
| 879 |
|
} |
