| 15 |
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| 16 |
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#include "pmapdata.h" /* Includes pmapkdt.h */ |
| 17 |
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#include "source.h" |
| 18 |
+ |
#include "otspecial.h" |
| 19 |
+ |
#include "random.h" |
| 20 |
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| 21 |
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| 22 |
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|
| 348 |
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if (norm && DOT(norm, p -> norm) <= PMAP_NORM_TOL * 127 * frandom()) |
| 349 |
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return; |
| 350 |
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|
| 351 |
< |
if (isContribPmap(pmap) && pmap -> srcContrib) { |
| 352 |
< |
/* Lookup in contribution photon map */ |
| 353 |
< |
OBJREC *srcMod; |
| 354 |
< |
const int srcIdx = photonSrcIdx(pmap, p); |
| 355 |
< |
|
| 356 |
< |
if (srcIdx < 0 || srcIdx >= nsources) |
| 357 |
< |
error(INTERNAL, "invalid light source index in photon map"); |
| 358 |
< |
|
| 359 |
< |
srcMod = findmaterial(source [srcIdx].so); |
| 351 |
> |
if (isContribPmap(pmap)) { |
| 352 |
> |
/* Lookup in contribution photon map; filter according to emitting |
| 353 |
> |
* light source if contrib list set, else accept all */ |
| 354 |
> |
|
| 355 |
> |
if (pmap -> srcContrib) { |
| 356 |
> |
OBJREC *srcMod; |
| 357 |
> |
const int srcIdx = photonSrcIdx(pmap, p); |
| 358 |
> |
|
| 359 |
> |
if (srcIdx < 0 || srcIdx >= nsources) |
| 360 |
> |
error(INTERNAL, "invalid light source index in photon map"); |
| 361 |
> |
|
| 362 |
> |
srcMod = findmaterial(source [srcIdx].so); |
| 363 |
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|
| 364 |
< |
/* Reject photon if contributions from light source which emitted it |
| 365 |
< |
* are not sought */ |
| 366 |
< |
if (!lu_find(pmap -> srcContrib, srcMod -> oname) -> data) |
| 367 |
< |
return; |
| 364 |
> |
/* Reject photon if contributions from light source which emitted it |
| 365 |
> |
* are not sought */ |
| 366 |
> |
if (!lu_find(pmap -> srcContrib, srcMod -> oname) -> data) |
| 367 |
> |
return; |
| 368 |
> |
} |
| 369 |
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|
| 370 |
|
/* Reject non-caustic photon if lookup for caustic contribs */ |
| 371 |
|
if (pmap -> lookupCaustic & !p -> caustic) |
| 419 |
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| 420 |
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|
| 421 |
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|
| 422 |
< |
void kdT_FindPhotons (struct PhotonMap *pmap, const FVECT pos, |
| 423 |
< |
const FVECT norm) |
| 422 |
> |
int kdT_FindPhotons (struct PhotonMap *pmap, const FVECT pos, |
| 423 |
> |
const FVECT norm) |
| 424 |
|
{ |
| 425 |
|
float p [3], n [3]; |
| 426 |
|
|
| 427 |
|
/* Photon pos & normal stored at lower precision */ |
| 428 |
|
VCOPY(p, pos); |
| 429 |
< |
VCOPY(n, norm); |
| 430 |
< |
kdT_FindNearest(pmap, p, n, 1); |
| 429 |
> |
if (norm) |
| 430 |
> |
VCOPY(n, norm); |
| 431 |
> |
kdT_FindNearest(pmap, p, norm ? n : NULL, 1); |
| 432 |
> |
|
| 433 |
> |
/* Return success or failure (empty queue => none found) */ |
| 434 |
> |
return pmap -> squeue.tail ? 0 : -1; |
| 435 |
|
} |
| 436 |
|
|
| 437 |
|
|
| 470 |
|
d2 = DOT(dv, dv); |
| 471 |
|
|
| 472 |
|
if (d2 < pmap -> maxDist2 && |
| 473 |
< |
DOT(norm, p -> norm) > PMAP_NORM_TOL * 127 * frandom()) { |
| 473 |
> |
(!norm || DOT(norm, p -> norm) > PMAP_NORM_TOL * 127 * frandom())) { |
| 474 |
|
/* Closest photon so far with similar normal. We allow for tolerance |
| 475 |
|
* to account for perturbation in the latter; note the photon normal |
| 476 |
|
* is coded in the range [-127,127], hence we factor this in */ |
| 481 |
|
|
| 482 |
|
|
| 483 |
|
|
| 484 |
< |
void kdT_Find1Photon (struct PhotonMap *pmap, const FVECT pos, |
| 485 |
< |
const FVECT norm, Photon *photon) |
| 484 |
> |
int kdT_Find1Photon (struct PhotonMap *pmap, const FVECT pos, |
| 485 |
> |
const FVECT norm, Photon *photon) |
| 486 |
|
{ |
| 487 |
|
float p [3], n [3]; |
| 488 |
< |
Photon *pnn; |
| 488 |
> |
Photon *pnn = NULL; |
| 489 |
|
|
| 490 |
|
/* Photon pos & normal stored at lower precision */ |
| 491 |
|
VCOPY(p, pos); |
| 492 |
< |
VCOPY(n, norm); |
| 493 |
< |
kdT_Find1Nearest(pmap, p, n, &pnn, 1); |
| 494 |
< |
memcpy(photon, pnn, sizeof(Photon)); |
| 492 |
> |
if (norm) |
| 493 |
> |
VCOPY(n, norm); |
| 494 |
> |
kdT_Find1Nearest(pmap, p, norm ? n : NULL, &pnn, 1); |
| 495 |
> |
if (!pnn) |
| 496 |
> |
/* No photon found => failed */ |
| 497 |
> |
return -1; |
| 498 |
> |
else { |
| 499 |
> |
/* Copy found photon => successs */ |
| 500 |
> |
memcpy(photon, pnn, sizeof(Photon)); |
| 501 |
> |
return 0; |
| 502 |
> |
} |
| 503 |
|
} |
| 504 |
|
|
| 505 |
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|
