14 |
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#include "rtio.h" |
15 |
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#include "resolu.h" |
16 |
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#include "bsdfrep.h" |
17 |
+ |
/* name and manufacturer if known */ |
18 |
+ |
char bsdf_name[256]; |
19 |
+ |
char bsdf_manuf[256]; |
20 |
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/* active grid resolution */ |
21 |
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int grid_res = GRIDRES; |
22 |
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|
30 |
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int output_orient = 0; |
31 |
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|
32 |
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/* BSDF histogram */ |
33 |
< |
int bsdf_hist[HISTLEN]; |
33 |
> |
unsigned long bsdf_hist[HISTLEN]; |
34 |
|
|
35 |
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/* BSDF value for boundary regions */ |
36 |
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double bsdf_min = 0; |
261 |
|
double |
262 |
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eval_rbfrep(const RBFNODE *rp, const FVECT outvec) |
263 |
|
{ |
264 |
+ |
const double rfact2 = (38./M_PI/M_PI)*(grid_res*grid_res); |
265 |
|
double minval = bsdf_min*output_orient*outvec[2]; |
266 |
+ |
int pos[2]; |
267 |
|
double res = 0; |
268 |
|
const RBFVAL *rbfp; |
269 |
|
FVECT odir; |
270 |
< |
double sig2; |
270 |
> |
double rad2; |
271 |
|
int n; |
272 |
|
/* check for wrong side */ |
273 |
|
if (outvec[2] > 0 ^ output_orient > 0) |
275 |
|
/* use minimum if no information avail. */ |
276 |
|
if (rp == NULL) |
277 |
|
return(minval); |
278 |
+ |
/* optimization for fast lobe culling */ |
279 |
+ |
pos_from_vec(pos, outvec); |
280 |
|
/* sum radial basis function */ |
281 |
|
rbfp = rp->rbfa; |
282 |
|
for (n = rp->nrbf; n--; rbfp++) { |
283 |
+ |
int d2 = (pos[0]-rbfp->gx)*(pos[0]-rbfp->gx) + |
284 |
+ |
(pos[1]-rbfp->gy)*(pos[1]-rbfp->gy); |
285 |
+ |
rad2 = R2ANG(rbfp->crad); |
286 |
+ |
rad2 *= rad2; |
287 |
+ |
if (d2 > rad2*rfact2) |
288 |
+ |
continue; |
289 |
|
ovec_from_pos(odir, rbfp->gx, rbfp->gy); |
290 |
< |
sig2 = R2ANG(rbfp->crad); |
278 |
< |
sig2 = (DOT(odir,outvec) - 1.) / (sig2*sig2); |
279 |
< |
if (sig2 > -19.) |
280 |
< |
res += rbfp->peak * exp(sig2); |
290 |
> |
res += rbfp->peak * exp((DOT(odir,outvec) - 1.) / rad2); |
291 |
|
} |
292 |
|
if (res < minval) /* never return less than minval */ |
293 |
|
return(minval); |
407 |
|
dsf_list = rbf->next; |
408 |
|
free(rbf); |
409 |
|
} |
410 |
+ |
bsdf_name[0] = '\0'; |
411 |
+ |
bsdf_manuf[0] = '\0'; |
412 |
|
inp_coverage = 0; |
413 |
|
single_plane_incident = -1; |
414 |
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input_orient = output_orient = 0; |
423 |
|
MIGRATION *mig; |
424 |
|
int i, n; |
425 |
|
/* finish header */ |
426 |
+ |
if (bsdf_name[0]) |
427 |
+ |
fprintf(ofp, "NAME=%s\n", bsdf_name); |
428 |
+ |
if (bsdf_manuf[0]) |
429 |
+ |
fprintf(ofp, "MANUFACT=%s\n", bsdf_manuf); |
430 |
|
fprintf(ofp, "SYMMETRY=%d\n", !single_plane_incident * inp_coverage); |
431 |
|
fprintf(ofp, "IO_SIDES= %d %d\n", input_orient, output_orient); |
432 |
|
fprintf(ofp, "GRIDRES=%d\n", grid_res); |
483 |
|
{ |
484 |
|
char fmt[32]; |
485 |
|
|
486 |
+ |
if (!strncmp(s, "NAME=", 5)) { |
487 |
+ |
strcpy(bsdf_name, s+5); |
488 |
+ |
bsdf_name[strlen(bsdf_name)-1] = '\0'; |
489 |
+ |
} |
490 |
+ |
if (!strncmp(s, "MANUFACT=", 9)) { |
491 |
+ |
strcpy(bsdf_manuf, s+9); |
492 |
+ |
bsdf_manuf[strlen(bsdf_manuf)-1] = '\0'; |
493 |
+ |
} |
494 |
|
if (!strncmp(s, "SYMMETRY=", 9)) { |
495 |
|
inp_coverage = atoi(s+9); |
496 |
|
single_plane_incident = !inp_coverage; |
530 |
|
progname); |
531 |
|
return(0); |
532 |
|
} |
533 |
< |
rbfh.next = NULL; /* read each DSF */ |
510 |
< |
rbfh.ejl = NULL; |
533 |
> |
memset(&rbfh, 0, sizeof(rbfh)); /* read each DSF */ |
534 |
|
while ((rbfh.ord = getint(4, ifp)) >= 0) { |
535 |
|
RBFNODE *newrbf; |
536 |
|
|
547 |
|
sizeof(RBFVAL)*(rbfh.nrbf-1)); |
548 |
|
if (newrbf == NULL) |
549 |
|
goto memerr; |
550 |
< |
memcpy(newrbf, &rbfh, sizeof(RBFNODE)-sizeof(RBFVAL)); |
550 |
> |
*newrbf = rbfh; |
551 |
|
for (i = 0; i < rbfh.nrbf; i++) { |
552 |
|
newrbf->rbfa[i].peak = getflt(ifp); |
553 |
|
newrbf->rbfa[i].crad = getint(2, ifp) & 0xffff; |