11 |
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#include <stdio.h> |
12 |
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#include <stdlib.h> |
13 |
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#include <math.h> |
14 |
+ |
#include "random.h" |
15 |
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#include "platform.h" |
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#include "rtprocess.h" |
17 |
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#include "calcomp.h" |
18 |
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#include "bsdfrep.h" |
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/* global argv[0] */ |
25 |
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/* super-sampling threshold */ |
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const double ssamp_thresh = 0.35; |
27 |
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/* number of super-samples */ |
28 |
< |
const int nssamp = 100; |
28 |
> |
#ifndef NSSAMP |
29 |
> |
#define NSSAMP 100 |
30 |
> |
#endif |
31 |
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/* limit on number of RBF lobes */ |
32 |
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static int lobe_lim = 15000; |
33 |
+ |
/* progress bar length */ |
34 |
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static int do_prog = 79; |
35 |
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|
36 |
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|
37 |
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/* Start new progress bar */ |
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#define prog_start(s) if (do_prog) fprintf(stderr, "%s: %s...\n", progname, s); else |
39 |
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|
40 |
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/* Draw progress bar of the appropriate length */ |
41 |
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static void |
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+ |
prog_show(double frac) |
43 |
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{ |
44 |
+ |
char pbar[256]; |
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+ |
int nchars; |
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|
47 |
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if (do_prog <= 0) return; |
48 |
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if (do_prog > sizeof(pbar)-2) |
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do_prog = sizeof(pbar)-2; |
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if (frac < 0) frac = 0; |
51 |
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else if (frac > 1) frac = 1; |
52 |
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nchars = do_prog*frac + .5; |
53 |
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pbar[0] = '\r'; |
54 |
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memset(pbar+1, '*', nchars); |
55 |
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memset(pbar+1+nchars, '-', do_prog-nchars); |
56 |
+ |
pbar[do_prog+1] = '\0'; |
57 |
+ |
fputs(pbar, stderr); |
58 |
+ |
} |
59 |
+ |
|
60 |
+ |
/* Finish progress bar */ |
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static void |
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+ |
prog_done(void) |
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{ |
64 |
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int n = do_prog; |
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|
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if (n <= 1) return; |
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fputc('\r', stderr); |
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while (n--) |
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fputc(' ', stderr); |
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fputc('\r', stderr); |
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} |
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|
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/* Output XML prologue to stdout */ |
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static void |
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xml_prologue(int ac, char *av[]) |
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puts("<Optical>"); |
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puts("<Layer>"); |
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puts("\t<Material>"); |
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puts("\t\t<Name>Name</Name>"); |
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puts("\t\t<Manufacturer>Manufacturer</Manufacturer>"); |
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printf("\t\t<Name>%s</Name>\n", bsdf_name[0] ? bsdf_name : "Unknown"); |
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printf("\t\t<Manufacturer>%s</Manufacturer>\n", |
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bsdf_manuf[0] ? bsdf_manuf : "Unknown"); |
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puts("\t\t<DeviceType>Other</DeviceType>"); |
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puts("\t</Material>"); |
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puts("\t<DataDefinition>"); |
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|
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data_prologue(); /* begin output */ |
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if (pctcull >= 0) { |
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sprintf(cmd, "rttree_reduce%s -h -ff -r 3 -t %f -g %d", |
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(input_orient>0 ^ output_orient>0) ? "" : " -a", |
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sprintf(cmd, "rttree_reduce -a -h -ff -r 3 -t %f -g %d", |
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pctcull, samp_order); |
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fflush(stdout); |
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ofp = popen(cmd, "w"); |
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exit(1); |
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} |
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SET_FILE_BINARY(ofp); |
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#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
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flockfile(ofp); |
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#endif |
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} else |
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fputs("{\n", stdout); |
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/* need to assign Dx, Dy, Dz? */ |
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bsdf = eval_rbfrep(rbf, iovec+3) * |
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output_orient/iovec[5]; |
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else { |
159 |
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double ssa[3], ssvec[6], sum; |
160 |
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int ssi; |
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if (assignD) { |
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varset("Dx", '=', -iovec[3]); |
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varset("Dy", '=', -iovec[4]); |
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++eclock; |
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} |
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bsdf = funvalue(funame, 6, iovec); |
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+ |
#if (NSSAMP > 0) |
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if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
214 |
< |
sum = 0; /* super-sample voxel */ |
215 |
< |
for (ssi = nssamp; ssi--; ) { |
216 |
< |
SDmultiSamp(ssa, 3, (ssi+drand48())/nssamp); |
214 |
> |
int ssi; |
215 |
> |
double ssa[3], ssvec[6], sum = 0; |
216 |
> |
/* super-sample voxel */ |
217 |
> |
for (ssi = NSSAMP; ssi--; ) { |
218 |
> |
SDmultiSamp(ssa, 3, (ssi+frandom()) * |
219 |
> |
(1./NSSAMP)); |
220 |
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ssvec[0] = 2.*(ix+ssa[0])/sqres - 1.; |
221 |
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ssvec[1] = .0; |
222 |
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ssvec[2] = input_orient * |
227 |
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sqrt(1. - ssvec[3]*ssvec[3] - |
228 |
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ssvec[4]*ssvec[4]); |
229 |
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if (assignD) { |
230 |
< |
varset("Dx", '=', -iovec[3]); |
231 |
< |
varset("Dy", '=', -iovec[4]); |
232 |
< |
varset("Dz", '=', -iovec[5]); |
230 |
> |
varset("Dx", '=', -ssvec[3]); |
231 |
> |
varset("Dy", '=', -ssvec[4]); |
232 |
> |
varset("Dz", '=', -ssvec[5]); |
233 |
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++eclock; |
234 |
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} |
235 |
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sum += funvalue(funame, 6, ssvec); |
236 |
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} |
237 |
< |
bsdf = sum/nssamp; |
237 |
> |
bsdf = sum/NSSAMP; |
238 |
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} |
239 |
+ |
#endif |
240 |
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} |
241 |
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if (pctcull >= 0) |
242 |
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fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
247 |
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} |
248 |
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if (rbf != NULL) |
249 |
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free(rbf); |
250 |
+ |
prog_show((ix+1.)*(2./sqres)); |
251 |
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} |
252 |
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if (pctcull >= 0) { /* finish output */ |
253 |
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if (pclose(ofp)) { |
261 |
|
fputs("}\n", stdout); |
262 |
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} |
263 |
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data_epilogue(); |
264 |
+ |
prog_done(); |
265 |
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} |
266 |
|
|
267 |
|
/* Interpolate and output anisotropic BSDF data */ |
288 |
|
progname); |
289 |
|
exit(1); |
290 |
|
} |
291 |
+ |
SET_FILE_BINARY(ofp); |
292 |
+ |
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
293 |
+ |
flockfile(ofp); |
294 |
+ |
#endif |
295 |
|
} else |
296 |
|
fputs("{\n", stdout); |
297 |
|
/* need to assign Dx, Dy, Dz? */ |
316 |
|
bsdf = eval_rbfrep(rbf, iovec+3) * |
317 |
|
output_orient/iovec[5]; |
318 |
|
else { |
264 |
– |
double ssa[4], ssvec[6], sum; |
265 |
– |
int ssi; |
319 |
|
if (assignD) { |
320 |
|
varset("Dx", '=', -iovec[3]); |
321 |
|
varset("Dy", '=', -iovec[4]); |
323 |
|
++eclock; |
324 |
|
} |
325 |
|
bsdf = funvalue(funame, 6, iovec); |
326 |
+ |
#if (NSSAMP > 0) |
327 |
|
if (abs_diff(bsdf, last_bsdf) > ssamp_thresh) { |
328 |
< |
sum = 0; /* super-sample voxel */ |
329 |
< |
for (ssi = nssamp; ssi--; ) { |
330 |
< |
SDmultiSamp(ssa, 4, (ssi+drand48())/nssamp); |
328 |
> |
int ssi; |
329 |
> |
double ssa[4], ssvec[6], sum = 0; |
330 |
> |
/* super-sample voxel */ |
331 |
> |
for (ssi = NSSAMP; ssi--; ) { |
332 |
> |
SDmultiSamp(ssa, 4, (ssi+frandom()) * |
333 |
> |
(1./NSSAMP)); |
334 |
|
SDsquare2disk(ssvec, 1.-(ix+ssa[0])/sqres, |
335 |
|
1.-(iy+ssa[1])/sqres); |
336 |
< |
ssvec[2] = output_orient * |
336 |
> |
ssvec[2] = input_orient * |
337 |
|
sqrt(1. - ssvec[0]*ssvec[0] - |
338 |
|
ssvec[1]*ssvec[1]); |
339 |
|
SDsquare2disk(ssvec+3, (ox+ssa[2])/sqres, |
342 |
|
sqrt(1. - ssvec[3]*ssvec[3] - |
343 |
|
ssvec[4]*ssvec[4]); |
344 |
|
if (assignD) { |
345 |
< |
varset("Dx", '=', -iovec[3]); |
346 |
< |
varset("Dy", '=', -iovec[4]); |
347 |
< |
varset("Dz", '=', -iovec[5]); |
345 |
> |
varset("Dx", '=', -ssvec[3]); |
346 |
> |
varset("Dy", '=', -ssvec[4]); |
347 |
> |
varset("Dz", '=', -ssvec[5]); |
348 |
|
++eclock; |
349 |
|
} |
350 |
|
sum += funvalue(funame, 6, ssvec); |
351 |
|
} |
352 |
< |
bsdf = sum/nssamp; |
352 |
> |
bsdf = sum/NSSAMP; |
353 |
|
} |
354 |
+ |
#endif |
355 |
|
} |
356 |
|
if (pctcull >= 0) |
357 |
|
fwrite(&bsdf, sizeof(bsdf), 1, ofp); |
362 |
|
} |
363 |
|
if (rbf != NULL) |
364 |
|
free(rbf); |
365 |
+ |
prog_show((ix*sqres+iy+1.)/(sqres*sqres)); |
366 |
|
} |
367 |
|
if (pctcull >= 0) { /* finish output */ |
368 |
|
if (pclose(ofp)) { |
373 |
|
} else |
374 |
|
fputs("}\n", stdout); |
375 |
|
data_epilogue(); |
376 |
+ |
prog_done(); |
377 |
|
} |
378 |
|
|
379 |
|
/* Read in BSDF and interpolate as tensor tree representation */ |
423 |
|
case 'l': |
424 |
|
lobe_lim = atoi(argv[++i]); |
425 |
|
break; |
426 |
+ |
case 'p': |
427 |
+ |
do_prog = atoi(argv[i]+2); |
428 |
+ |
break; |
429 |
|
default: |
430 |
|
goto userr; |
431 |
|
} |
436 |
|
fprintf(stderr, |
437 |
|
"%s: need single function with 6 arguments: bsdf(ix,iy,iz,ox,oy,oz)\n", |
438 |
|
progname); |
439 |
< |
fprintf(stderr, "\tor 3 arguments using Dx,Dy,Dz: bsdf(ix,iy,iz)\n", |
377 |
< |
progname); |
439 |
> |
fprintf(stderr, "\tor 3 arguments using Dx,Dy,Dz: bsdf(ix,iy,iz)\n"); |
440 |
|
goto userr; |
441 |
|
} |
442 |
|
++eclock; |
444 |
|
if (dofwd) { |
445 |
|
input_orient = -1; |
446 |
|
output_orient = -1; |
447 |
< |
(*evf)(argv[i]); /* outside reflectance */ |
447 |
> |
prog_start("Evaluating outside reflectance"); |
448 |
> |
(*evf)(argv[i]); |
449 |
|
output_orient = 1; |
450 |
< |
(*evf)(argv[i]); /* outside -> inside */ |
450 |
> |
prog_start("Evaluating outside->inside transmission"); |
451 |
> |
(*evf)(argv[i]); |
452 |
|
} |
453 |
|
if (dobwd) { |
454 |
|
input_orient = 1; |
455 |
|
output_orient = 1; |
456 |
< |
(*evf)(argv[i]); /* inside reflectance */ |
456 |
> |
prog_start("Evaluating inside reflectance"); |
457 |
> |
(*evf)(argv[i]); |
458 |
|
output_orient = -1; |
459 |
< |
(*evf)(argv[i]); /* inside -> outside */ |
459 |
> |
prog_start("Evaluating inside->outside transmission"); |
460 |
> |
(*evf)(argv[i]); |
461 |
|
} |
462 |
|
xml_epilogue(); /* finish XML output & exit */ |
463 |
|
return(0); |
465 |
|
if (i < argc) { /* open input files if given */ |
466 |
|
int nbsdf = 0; |
467 |
|
for ( ; i < argc; i++) { /* interpolate each component */ |
468 |
+ |
char pbuf[256]; |
469 |
|
FILE *fpin = fopen(argv[i], "rb"); |
470 |
|
if (fpin == NULL) { |
471 |
|
fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", |
477 |
|
fclose(fpin); |
478 |
|
if (!nbsdf++) /* start XML on first dist. */ |
479 |
|
xml_prologue(argc, argv); |
480 |
+ |
sprintf(pbuf, "Interpolating component '%s'", argv[i]); |
481 |
+ |
prog_start(pbuf); |
482 |
|
if (single_plane_incident) |
483 |
|
eval_isotropic(NULL); |
484 |
|
else |
491 |
|
if (!load_bsdf_rep(stdin)) |
492 |
|
return(1); |
493 |
|
xml_prologue(argc, argv); /* start XML output */ |
494 |
+ |
prog_start("Interpolating from standard input"); |
495 |
|
if (single_plane_incident) /* resample dist. */ |
496 |
|
eval_isotropic(NULL); |
497 |
|
else |