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 100 |
31 |
< |
#endif |
31 |
> |
static int nssamp = 256; |
32 |
|
/* limit on number of RBF lobes */ |
33 |
|
static int lobe_lim = 15000; |
34 |
|
/* progress bar length */ |
38 |
|
static char *wrapBSDF[MAXCARG] = {"wrapBSDF", "-U"}; |
39 |
|
static int wbsdfac = 2; |
40 |
|
|
41 |
< |
/* Add argument to wrapBSDF, allocating space if isstatic */ |
41 |
> |
/* Add argument to wrapBSDF, allocating space if !isstatic */ |
42 |
|
static void |
43 |
|
add_wbsdf(const char *arg, int isstatic) |
44 |
|
{ |
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]; |
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 |
+ |
SDsquare2disk(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 |
> |
SDsquare2disk(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 (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 |
+ |
SDsquare2disk(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 |
272 |
|
if (rbf_colorimetry == RBCtristimulus) { |
209 |
– |
c_ccvt(&sdv.spec, C_CSXY); |
273 |
|
uv[0] = uv[1] = 1. / |
274 |
|
(-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.); |
275 |
|
uv[0] *= 4.*sdv.spec.cx; |
276 |
|
uv[1] *= 9.*sdv.spec.cy; |
277 |
|
} |
278 |
|
} else { |
279 |
< |
if (assignD) { |
280 |
< |
varset("Dx", '=', -iovec[3]); |
281 |
< |
varset("Dy", '=', -iovec[4]); |
282 |
< |
varset("Dz", '=', -iovec[5]); |
283 |
< |
++eclock; |
279 |
> |
bsdf = val_next[oy]; |
280 |
> |
if (ox < sqres-1) { |
281 |
> |
if (assignD) { |
282 |
> |
varset("Dx", '=', -iovec[3]); |
283 |
> |
varset("Dy", '=', -iovec[4]); |
284 |
> |
varset("Dz", '=', -iovec[5]); |
285 |
> |
++eclock; |
286 |
> |
} |
287 |
> |
val_next[oy] = funvalue(funame, 6, iovec); |
288 |
|
} |
289 |
< |
bsdf = funvalue(funame, 6, iovec); |
290 |
< |
#if (NSSAMP > 0) |
291 |
< |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
289 |
> |
if (abs_diff(bsdf, val_next[oy]) > ssamp_thresh || |
290 |
> |
(ox && abs_diff(bsdf, val_last[oy]) > ssamp_thresh) || |
291 |
> |
(oy && abs_diff(bsdf, val_last[oy-1]) > ssamp_thresh) || |
292 |
> |
(oy < sqres-1 && |
293 |
> |
abs_diff(bsdf, val_next[oy+1]) > ssamp_thresh)) { |
294 |
|
int ssi; |
295 |
< |
double ssa[3], ssvec[6], sum = 0; |
295 |
> |
double ssa[4], ssvec[6], sum = 0; |
296 |
|
/* super-sample voxel */ |
297 |
< |
for (ssi = NSSAMP; ssi--; ) { |
298 |
< |
SDmultiSamp(ssa, 3, (ssi+frandom()) * |
299 |
< |
(1./NSSAMP)); |
300 |
< |
ssvec[0] = 2.*(ix+ssa[0])/sqres - 1.; |
301 |
< |
ssvec[1] = .0; |
302 |
< |
ssvec[2] = input_orient * |
303 |
< |
sqrt(1. - ssvec[0]*ssvec[0]); |
304 |
< |
SDsquare2disk(ssvec+3, (ox+ssa[1])/sqres, |
305 |
< |
(oy+ssa[2])/sqres); |
297 |
> |
for (ssi = nssamp; ssi--; ) { |
298 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom()) / |
299 |
> |
(double)nssamp); |
300 |
> |
ssvec[0] = 2.*sqfact*(ix+ssa[0]) - 1.; |
301 |
> |
ssvec[1] = zipsgn*sqfact*ssa[1]; |
302 |
> |
ssvec[2] = 1. - ssvec[0]*ssvec[0] |
303 |
> |
- ssvec[1]*ssvec[1]; |
304 |
> |
if (ssvec[2] < .0) { |
305 |
> |
ssvec[1] = 0; |
306 |
> |
ssvec[2] = 1. - ssvec[0]*ssvec[0]; |
307 |
> |
} |
308 |
> |
ssvec[2] = input_orient * sqrt(ssvec[2]); |
309 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[2])*sqfact, |
310 |
> |
(oy+ssa[3])*sqfact); |
311 |
|
ssvec[5] = output_orient * |
312 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
313 |
|
ssvec[4]*ssvec[4]); |
319 |
|
} |
320 |
|
sum += funvalue(funame, 6, ssvec); |
321 |
|
} |
322 |
< |
bsdf = sum/NSSAMP; |
322 |
> |
bsdf = sum / (double)nssamp; |
323 |
|
} |
250 |
– |
#endif |
324 |
|
} |
325 |
|
if (pctcull >= 0) |
326 |
< |
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
326 |
> |
putbinary(&bsdf, sizeof(bsdf), 1, ofp); |
327 |
|
else |
328 |
|
fprintf(ofp, "\t%.3e\n", bsdf); |
329 |
|
|
330 |
|
if (rbf_colorimetry == RBCtristimulus) { |
331 |
|
if (pctcull >= 0) { |
332 |
< |
fwrite(&uv[0], sizeof(*uv), 1, uvfp[0]); |
333 |
< |
fwrite(&uv[1], sizeof(*uv), 1, uvfp[1]); |
332 |
> |
putbinary(&uv[0], sizeof(*uv), 1, uvfp[0]); |
333 |
> |
putbinary(&uv[1], sizeof(*uv), 1, uvfp[1]); |
334 |
|
} else { |
335 |
|
fprintf(uvfp[0], "\t%.3e\n", uv[0]); |
336 |
|
fprintf(uvfp[1], "\t%.3e\n", uv[1]); |
337 |
|
} |
338 |
|
} |
339 |
< |
last_bsdf = bsdf; |
339 |
> |
if (val_last != NULL) |
340 |
> |
val_last[oy] = bsdf; |
341 |
|
} |
342 |
|
} |
343 |
|
if (rbf != NULL) |
344 |
|
free(rbf); |
345 |
< |
prog_show((ix+1.)*(2./sqres)); |
345 |
> |
prog_show((ix+1.)*(2.*sqfact)); |
346 |
|
} |
347 |
|
prog_done(); |
348 |
+ |
if (val_last != NULL) { |
349 |
+ |
free(val_last); |
350 |
+ |
if (val_next != NULL) free(val_next); |
351 |
+ |
if (sdv_next != NULL) free(sdv_next); |
352 |
+ |
} |
353 |
|
if (pctcull >= 0) { /* finish output */ |
354 |
|
if (pclose(ofp)) { |
355 |
|
fprintf(stderr, "%s: error running rttree_reduce on Y\n", |
392 |
|
eval_anisotropic(char *funame) |
393 |
|
{ |
394 |
|
const int sqres = 1<<samp_order; |
395 |
+ |
const double sqfact = 1./(double)sqres; |
396 |
+ |
float *val_last = NULL; |
397 |
+ |
float *val_next = NULL; |
398 |
+ |
SDValue *sdv_next = NULL; |
399 |
|
FILE *ofp, *uvfp[2]; |
400 |
|
int assignD = 0; |
401 |
|
char cmd[128]; |
405 |
|
|
406 |
|
if (pctcull >= 0) { |
407 |
|
const char *avgopt = (input_orient>0 ^ output_orient>0) |
408 |
< |
? "" : " -a"; |
408 |
> |
? "" : recip; |
409 |
|
sprintf(cmd, "rttree_reduce%s -h -ff -r 4 -t %f -g %d > %s", |
410 |
|
avgopt, pctcull, samp_order, |
411 |
|
create_component_file(0)); |
461 |
|
} |
462 |
|
if (funame != NULL) /* need to assign Dx, Dy, Dz? */ |
463 |
|
assignD = (fundefined(funame) < 6); |
464 |
+ |
val_last = (float *)calloc(sqres, sizeof(float)); |
465 |
+ |
if (funame == NULL) |
466 |
+ |
sdv_next = (SDValue *)malloc(sizeof(SDValue)*sqres); |
467 |
+ |
else |
468 |
+ |
val_next = (float *)malloc(sizeof(float)*sqres); |
469 |
|
/* run through directions */ |
470 |
|
for (ix = 0; ix < sqres; ix++) |
471 |
|
for (iy = 0; iy < sqres; iy++) { |
472 |
|
RBFNODE *rbf = NULL; /* Klems reversal */ |
473 |
< |
SDsquare2disk(iovec, 1.-(ix+.5)/sqres, 1.-(iy+.5)/sqres); |
473 |
> |
SDsquare2disk(iovec, 1.-(ix+.5)*sqfact, 1.-(iy+.5)*sqfact); |
474 |
|
iovec[2] = input_orient * |
475 |
|
sqrt(1. - iovec[0]*iovec[0] - iovec[1]*iovec[1]); |
476 |
|
if (funame == NULL) |
477 |
|
rbf = advect_rbf(iovec, lobe_lim); |
478 |
+ |
/* presample first row */ |
479 |
+ |
for (oy = 0; oy < sqres; oy++) { |
480 |
+ |
SDsquare2disk(iovec+3, .5*sqfact, (oy+.5)*sqfact); |
481 |
+ |
iovec[5] = output_orient * |
482 |
+ |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
483 |
+ |
if (funame == NULL) { |
484 |
+ |
eval_rbfcol(&sdv_next[oy], rbf, iovec+3); |
485 |
+ |
} else { |
486 |
+ |
if (assignD) { |
487 |
+ |
varset("Dx", '=', -iovec[3]); |
488 |
+ |
varset("Dy", '=', -iovec[4]); |
489 |
+ |
varset("Dz", '=', -iovec[5]); |
490 |
+ |
++eclock; |
491 |
+ |
} |
492 |
+ |
val_next[oy] = funvalue(funame, 6, iovec); |
493 |
+ |
} |
494 |
+ |
} |
495 |
|
for (ox = 0; ox < sqres; ox++) { |
496 |
< |
float last_bsdf = -1; |
496 |
> |
/* |
497 |
> |
* Super-sample when we detect a difference from before |
498 |
> |
* or after in this row, above or below. |
499 |
> |
*/ |
500 |
|
for (oy = 0; oy < sqres; oy++) { |
501 |
< |
SDsquare2disk(iovec+3, (ox+.5)/sqres, (oy+.5)/sqres); |
502 |
< |
iovec[5] = output_orient * |
501 |
> |
if (ox < sqres-1) { /* keeping one row ahead... */ |
502 |
> |
SDsquare2disk(iovec+3, (ox+1.5)*sqfact, (oy+.5)*sqfact); |
503 |
> |
iovec[5] = output_orient * |
504 |
|
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
505 |
+ |
} |
506 |
|
if (funame == NULL) { |
507 |
< |
SDValue sdv; |
398 |
< |
eval_rbfcol(&sdv, rbf, iovec+3); |
507 |
> |
SDValue sdv = sdv_next[oy]; |
508 |
|
bsdf = sdv.cieY; |
509 |
+ |
if (ox < sqres-1) |
510 |
+ |
eval_rbfcol(&sdv_next[oy], rbf, iovec+3); |
511 |
+ |
if (abs_diff(bsdf, sdv_next[oy].cieY) > ssamp_thresh || |
512 |
+ |
(ox && abs_diff(bsdf, val_last[oy]) > ssamp_thresh) || |
513 |
+ |
(oy && abs_diff(bsdf, val_last[oy-1]) > ssamp_thresh) || |
514 |
+ |
(oy < sqres-1 && |
515 |
+ |
abs_diff(bsdf, sdv_next[oy+1].cieY) > ssamp_thresh)) { |
516 |
+ |
int ssi; |
517 |
+ |
double ssa[2], sum = 0, usum = 0, vsum = 0; |
518 |
+ |
/* super-sample voxel */ |
519 |
+ |
for (ssi = nssamp; ssi--; ) { |
520 |
+ |
SDmultiSamp(ssa, 2, (ssi+frandom()) / |
521 |
+ |
(double)nssamp); |
522 |
+ |
SDsquare2disk(iovec+3, (ox+ssa[0])*sqfact, |
523 |
+ |
(oy+ssa[1])*sqfact); |
524 |
+ |
iovec[5] = output_orient * |
525 |
+ |
sqrt(1. - iovec[3]*iovec[3] - iovec[4]*iovec[4]); |
526 |
+ |
eval_rbfcol(&sdv, rbf, iovec+3); |
527 |
+ |
sum += sdv.cieY; |
528 |
+ |
if (rbf_colorimetry == RBCtristimulus) { |
529 |
+ |
sdv.cieY /= |
530 |
+ |
-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.; |
531 |
+ |
usum += 4.*sdv.spec.cx * sdv.cieY; |
532 |
+ |
vsum += 9.*sdv.spec.cy * sdv.cieY; |
533 |
+ |
} |
534 |
+ |
} |
535 |
+ |
bsdf = sum / (double)nssamp; |
536 |
+ |
if (rbf_colorimetry == RBCtristimulus) { |
537 |
+ |
uv[0] = usum / (sum+FTINY); |
538 |
+ |
uv[1] = vsum / (sum+FTINY); |
539 |
+ |
} |
540 |
+ |
} else |
541 |
|
if (rbf_colorimetry == RBCtristimulus) { |
401 |
– |
c_ccvt(&sdv.spec, C_CSXY); |
542 |
|
uv[0] = uv[1] = 1. / |
543 |
|
(-2.*sdv.spec.cx + 12.*sdv.spec.cy + 3.); |
544 |
|
uv[0] *= 4.*sdv.spec.cx; |
545 |
|
uv[1] *= 9.*sdv.spec.cy; |
546 |
|
} |
547 |
|
} else { |
548 |
< |
if (assignD) { |
549 |
< |
varset("Dx", '=', -iovec[3]); |
550 |
< |
varset("Dy", '=', -iovec[4]); |
551 |
< |
varset("Dz", '=', -iovec[5]); |
552 |
< |
++eclock; |
548 |
> |
bsdf = val_next[oy]; |
549 |
> |
if (ox < sqres-1) { |
550 |
> |
if (assignD) { |
551 |
> |
varset("Dx", '=', -iovec[3]); |
552 |
> |
varset("Dy", '=', -iovec[4]); |
553 |
> |
varset("Dz", '=', -iovec[5]); |
554 |
> |
++eclock; |
555 |
> |
} |
556 |
> |
val_next[oy] = funvalue(funame, 6, iovec); |
557 |
|
} |
558 |
< |
bsdf = funvalue(funame, 6, iovec); |
559 |
< |
#if (NSSAMP > 0) |
560 |
< |
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
558 |
> |
if (abs_diff(bsdf, val_next[oy]) > ssamp_thresh || |
559 |
> |
(ox && abs_diff(bsdf, val_last[oy]) > ssamp_thresh) || |
560 |
> |
(oy && abs_diff(bsdf, val_last[oy-1]) > ssamp_thresh) || |
561 |
> |
(oy < sqres-1 && |
562 |
> |
abs_diff(bsdf, val_next[oy+1]) > ssamp_thresh)) { |
563 |
|
int ssi; |
564 |
|
double ssa[4], ssvec[6], sum = 0; |
565 |
|
/* super-sample voxel */ |
566 |
< |
for (ssi = NSSAMP; ssi--; ) { |
567 |
< |
SDmultiSamp(ssa, 4, (ssi+frandom()) * |
568 |
< |
(1./NSSAMP)); |
569 |
< |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])/sqres, |
570 |
< |
1.-(iy+ssa[1])/sqres); |
566 |
> |
for (ssi = nssamp; ssi--; ) { |
567 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom()) / |
568 |
> |
(double)nssamp); |
569 |
> |
SDsquare2disk(ssvec, 1.-(ix+ssa[0])*sqfact, |
570 |
> |
1.-(iy+ssa[1])*sqfact); |
571 |
|
ssvec[2] = input_orient * |
572 |
|
sqrt(1. - ssvec[0]*ssvec[0] - |
573 |
|
ssvec[1]*ssvec[1]); |
574 |
< |
SDsquare2disk(ssvec+3, (ox+ssa[2])/sqres, |
575 |
< |
(oy+ssa[3])/sqres); |
574 |
> |
SDsquare2disk(ssvec+3, (ox+ssa[2])*sqfact, |
575 |
> |
(oy+ssa[3])*sqfact); |
576 |
|
ssvec[5] = output_orient * |
577 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
578 |
|
ssvec[4]*ssvec[4]); |
584 |
|
} |
585 |
|
sum += funvalue(funame, 6, ssvec); |
586 |
|
} |
587 |
< |
bsdf = sum/NSSAMP; |
587 |
> |
bsdf = sum / (double)nssamp; |
588 |
|
} |
443 |
– |
#endif |
589 |
|
} |
590 |
|
if (pctcull >= 0) |
591 |
< |
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
591 |
> |
putbinary(&bsdf, sizeof(bsdf), 1, ofp); |
592 |
|
else |
593 |
|
fprintf(ofp, "\t%.3e\n", bsdf); |
594 |
|
|
595 |
|
if (rbf_colorimetry == RBCtristimulus) { |
596 |
|
if (pctcull >= 0) { |
597 |
< |
fwrite(&uv[0], sizeof(*uv), 1, uvfp[0]); |
598 |
< |
fwrite(&uv[1], sizeof(*uv), 1, uvfp[1]); |
597 |
> |
putbinary(&uv[0], sizeof(*uv), 1, uvfp[0]); |
598 |
> |
putbinary(&uv[1], sizeof(*uv), 1, uvfp[1]); |
599 |
|
} else { |
600 |
|
fprintf(uvfp[0], "\t%.3e\n", uv[0]); |
601 |
|
fprintf(uvfp[1], "\t%.3e\n", uv[1]); |
602 |
|
} |
603 |
|
} |
604 |
< |
last_bsdf = bsdf; |
604 |
> |
if (val_last != NULL) |
605 |
> |
val_last[oy] = bsdf; |
606 |
|
} |
607 |
|
} |
608 |
|
if (rbf != NULL) |
610 |
|
prog_show((ix*sqres+iy+1.)/(sqres*sqres)); |
611 |
|
} |
612 |
|
prog_done(); |
613 |
+ |
if (val_last != NULL) { |
614 |
+ |
free(val_last); |
615 |
+ |
if (val_next != NULL) free(val_next); |
616 |
+ |
if (sdv_next != NULL) free(sdv_next); |
617 |
+ |
} |
618 |
|
if (pctcull >= 0) { /* finish output */ |
619 |
|
if (pclose(ofp)) { |
620 |
|
fprintf(stderr, "%s: error running rttree_reduce on Y\n", |
651 |
|
static int |
652 |
|
wrap_up(void) |
653 |
|
{ |
654 |
< |
char cmd[8192]; |
654 |
> |
char cmd[32700]; |
655 |
|
|
656 |
|
if (bsdf_manuf[0]) { |
657 |
|
add_wbsdf("-f", 1); |
702 |
|
} |
703 |
|
#endif |
704 |
|
|
705 |
+ |
#define HEAD_BUFLEN 8192 |
706 |
+ |
static char head_buf[HEAD_BUFLEN]; |
707 |
+ |
static int cur_headlen = 0; |
708 |
+ |
|
709 |
+ |
/* Record header line as comment associated with this SIR input */ |
710 |
+ |
static int |
711 |
+ |
record2header(char *s) |
712 |
+ |
{ |
713 |
+ |
int len = strlen(s); |
714 |
+ |
|
715 |
+ |
if (cur_headlen+len >= HEAD_BUFLEN-6) |
716 |
+ |
return(0); |
717 |
+ |
/* includes EOL */ |
718 |
+ |
strcpy(head_buf+cur_headlen, s); |
719 |
+ |
cur_headlen += len; |
720 |
+ |
|
721 |
+ |
#if defined(_WIN32) || defined(_WIN64) |
722 |
+ |
if (head_buf[cur_headlen-1] == '\n') |
723 |
+ |
head_buf[cur_headlen-1] = '\t'; |
724 |
+ |
#endif |
725 |
+ |
return(1); |
726 |
+ |
} |
727 |
+ |
|
728 |
+ |
/* Finish off header for this file */ |
729 |
+ |
static void |
730 |
+ |
done_header(void) |
731 |
+ |
{ |
732 |
+ |
while (cur_headlen > 0 && isspace(head_buf[cur_headlen-1])) |
733 |
+ |
--cur_headlen; |
734 |
+ |
head_buf[cur_headlen] = '\0'; |
735 |
+ |
if (!cur_headlen) |
736 |
+ |
return; |
737 |
+ |
add_wbsdf("-C", 1); |
738 |
+ |
add_wbsdf(head_buf, 0); |
739 |
+ |
head_buf[cur_headlen=0] = '\0'; |
740 |
+ |
} |
741 |
+ |
|
742 |
|
/* Read in BSDF and interpolate as tensor tree representation */ |
743 |
|
int |
744 |
|
main(int argc, char *argv[]) |
753 |
|
esupport &= ~(E_INCHAN|E_OUTCHAN); |
754 |
|
scompile("PI:3.14159265358979323846", NULL, 0); |
755 |
|
biggerlib(); |
756 |
< |
for (i = 1; i < argc-1 && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
756 |
> |
for (i = 1; i < argc && (argv[i][0] == '-') | (argv[i][0] == '+'); i++) |
757 |
|
switch (argv[i][1]) { /* get options */ |
758 |
|
case 'e': |
759 |
|
scompile(argv[++i], NULL, 0); |
760 |
+ |
if (single_plane_incident < 0) |
761 |
+ |
single_plane_incident = 0; |
762 |
|
break; |
763 |
|
case 'f': |
764 |
|
if (!argv[i][2]) { |
765 |
|
if (strchr(argv[++i], '=') != NULL) { |
766 |
|
add_wbsdf("-f", 1); |
767 |
|
add_wbsdf(argv[i], 1); |
768 |
< |
} else |
769 |
< |
fcompile(argv[i]); |
768 |
> |
} else { |
769 |
> |
char *fpath = getpath(argv[i], |
770 |
> |
getrlibpath(), 0); |
771 |
> |
if (fpath == NULL) { |
772 |
> |
fprintf(stderr, |
773 |
> |
"%s: cannot find file '%s'\n", |
774 |
> |
argv[0], argv[i]); |
775 |
> |
return(1); |
776 |
> |
} |
777 |
> |
fcompile(fpath); |
778 |
> |
if (single_plane_incident < 0) |
779 |
> |
single_plane_incident = 0; |
780 |
> |
} |
781 |
|
} else |
782 |
|
dofwd = (argv[i][0] == '+'); |
783 |
|
break; |
784 |
+ |
case 'a': |
785 |
+ |
recip = (argv[i][0] == '+') ? " -a" : ""; |
786 |
+ |
break; |
787 |
|
case 'b': |
788 |
|
dobwd = (argv[i][0] == '+'); |
789 |
|
break; |
790 |
+ |
case 'n': |
791 |
+ |
nssamp = atoi(argv[++i]); |
792 |
+ |
if (nssamp <= 0) |
793 |
+ |
goto userr; |
794 |
+ |
break; |
795 |
+ |
case 's': |
796 |
+ |
ssamp_thresh = atof(argv[++i]); |
797 |
+ |
if (ssamp_thresh <= FTINY) |
798 |
+ |
goto userr; |
799 |
+ |
break; |
800 |
|
case 't': |
801 |
|
switch (argv[i][2]) { |
802 |
|
case '3': |
879 |
|
progname, argv[i]); |
880 |
|
return(1); |
881 |
|
} |
882 |
+ |
sprintf(pbuf, "%s:\n", argv[i]); |
883 |
+ |
record2header(pbuf); |
884 |
+ |
sir_headshare = &record2header; |
885 |
|
if (!load_bsdf_rep(fpin)) |
886 |
|
return(1); |
887 |
|
fclose(fpin); |
888 |
+ |
done_header(); |
889 |
|
sprintf(pbuf, "Interpolating component '%s'", argv[i]); |
890 |
|
prog_start(pbuf); |
891 |
|
if (!nbsdf++) { |
913 |
|
return(wrap_up()); |
914 |
|
userr: |
915 |
|
fprintf(stderr, |
916 |
< |
"Usage: %s [-g Nlog2][-t pctcull][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
916 |
> |
"Usage: %s [{+|-}a][-g Nlog2][-t pctcull][-n nss][-s thresh][-l maxlobes] [bsdf.sir ..] > bsdf.xml\n", |
917 |
|
progname); |
918 |
|
fprintf(stderr, |
919 |
< |
" or: %s -t{3|4} [-g Nlog2][-t pctcull][{+|-}for[ward]][{+|-}b[ackward]][-e expr][-f file] bsdf_func > bsdf.xml\n", |
919 |
> |
" 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", |
920 |
|
progname); |
921 |
|
return(1); |
922 |
|
} |