| 1 |
+ |
#ifndef lint |
| 2 |
+ |
static const char RCSid[] = "$Id$"; |
| 3 |
+ |
#endif |
| 4 |
|
/* |
| 5 |
|
================================================================== |
| 6 |
|
Photon map support routines for emission from light sources |
| 10 |
|
(c) Lucerne University of Applied Sciences and Arts, |
| 11 |
|
supported by the Swiss National Science Foundation (SNSF, #147053) |
| 12 |
|
================================================================== |
| 13 |
< |
|
| 11 |
< |
$Id$ |
| 13 |
> |
|
| 14 |
|
*/ |
| 15 |
|
|
| 16 |
|
|
| 20 |
|
#include "pmaprand.h" |
| 21 |
|
#include "otypes.h" |
| 22 |
|
|
| 23 |
< |
|
| 24 |
< |
|
| 25 |
< |
SRCREC *photonPorts = NULL; /* Photon port list */ |
| 23 |
> |
/* List of photon port modifier names */ |
| 24 |
> |
char *photonPortList [MAXSET + 1] = {NULL}; |
| 25 |
> |
/* Photon port objects (with modifiers in photonPortMods) */ |
| 26 |
> |
SRCREC *photonPorts = NULL; |
| 27 |
|
unsigned numPhotonPorts = 0; |
| 28 |
|
|
| 29 |
|
void (*photonPartition [NUMOTYPE]) (EmissionMap*); |
| 30 |
|
void (*photonOrigin [NUMOTYPE]) (EmissionMap*); |
| 31 |
|
|
| 29 |
– |
extern OBJECT ambset []; |
| 30 |
– |
|
| 32 |
|
|
| 33 |
|
|
| 34 |
|
static int flatPhotonPartition2 (EmissionMap* emap, unsigned long mp, |
| 520 |
|
|
| 521 |
|
|
| 522 |
|
|
| 523 |
< |
void getPhotonPorts () |
| 524 |
< |
/* Find geometry declared as photon ports */ |
| 523 |
> |
void getPhotonPorts (char **portList) |
| 524 |
> |
/* Find geometry declared as photon ports from modifiers in portList */ |
| 525 |
|
{ |
| 526 |
|
OBJECT i; |
| 527 |
< |
OBJREC* obj; |
| 527 |
> |
OBJREC *obj, *mat; |
| 528 |
> |
char **lp; |
| 529 |
|
|
| 530 |
|
/* Check for missing port modifiers */ |
| 531 |
< |
if (!ambset [0]) |
| 532 |
< |
error(USER, "no photon ports found"); |
| 531 |
> |
if (!portList [0]) |
| 532 |
> |
error(USER, "no photon ports"); |
| 533 |
|
|
| 534 |
|
for (i = 0; i < nobjects; i++) { |
| 535 |
|
obj = objptr(i); |
| 536 |
+ |
mat = findmaterial(obj); |
| 537 |
|
|
| 538 |
< |
if (inset(ambset, obj -> omod)) { |
| 539 |
< |
/* Add photon port */ |
| 540 |
< |
photonPorts = (SRCREC*)realloc(photonPorts, |
| 541 |
< |
(numPhotonPorts + 1) * |
| 542 |
< |
sizeof(SRCREC)); |
| 540 |
< |
if (!photonPorts) |
| 541 |
< |
error(USER, "can't allocate photon ports"); |
| 542 |
< |
|
| 543 |
< |
photonPorts [numPhotonPorts].so = obj; |
| 544 |
< |
photonPorts [numPhotonPorts].sflags = 0; |
| 538 |
> |
/* Check if object is a surface and NOT a light source (duh) and |
| 539 |
> |
* resolve its material via any aliases, then check for inclusion in |
| 540 |
> |
* modifier list */ |
| 541 |
> |
if (issurface(obj -> otype) && mat && !islight(mat -> otype)) { |
| 542 |
> |
for (lp = portList; *lp && strcmp(mat -> oname, *lp); lp++); |
| 543 |
|
|
| 544 |
< |
if (!sfun [obj -> otype].of || !sfun[obj -> otype].of -> setsrc) |
| 545 |
< |
objerror(obj, USER, "illegal photon port"); |
| 544 |
> |
if (*lp) { |
| 545 |
> |
/* Add photon port */ |
| 546 |
> |
photonPorts = (SRCREC*)realloc(photonPorts, |
| 547 |
> |
(numPhotonPorts + 1) * |
| 548 |
> |
sizeof(SRCREC)); |
| 549 |
> |
if (!photonPorts) |
| 550 |
> |
error(USER, "can't allocate photon ports"); |
| 551 |
|
|
| 552 |
< |
setsource(photonPorts + numPhotonPorts, obj); |
| 553 |
< |
numPhotonPorts++; |
| 552 |
> |
photonPorts [numPhotonPorts].so = obj; |
| 553 |
> |
photonPorts [numPhotonPorts].sflags = 0; |
| 554 |
> |
|
| 555 |
> |
if (!sfun [obj -> otype].of || !sfun[obj -> otype].of -> setsrc) |
| 556 |
> |
objerror(obj, USER, "illegal photon port"); |
| 557 |
> |
|
| 558 |
> |
setsource(photonPorts + numPhotonPorts, obj); |
| 559 |
> |
numPhotonPorts++; |
| 560 |
> |
} |
| 561 |
|
} |
| 562 |
|
} |
| 563 |
+ |
|
| 564 |
+ |
if (!numPhotonPorts) |
| 565 |
+ |
error(USER, "no valid photon ports found"); |
| 566 |
|
} |
| 567 |
|
|
| 568 |
|
|
| 760 |
|
emitted photon to break up clustering artifacts */ |
| 761 |
|
photonOrigin [emap -> src -> so -> otype] ((EmissionMap*)emap); |
| 762 |
|
/* If we have a local glow source with a maximum radius, then |
| 763 |
< |
restrict our photon to the specified distance (otherwise no limit) */ |
| 764 |
< |
if (mod -> otype == MAT_GLOW && emap -> src -> so -> otype != OBJ_SOURCE |
| 763 |
> |
restrict our photon to the specified distance, otherwise we set |
| 764 |
> |
the limit imposed by photonMaxDist (or no limit if 0) */ |
| 765 |
> |
if (mod -> otype == MAT_GLOW && !(emap -> src -> sflags & SDISTANT) |
| 766 |
|
&& mod -> oargs.farg[3] > FTINY) |
| 767 |
|
ray -> rmax = mod -> oargs.farg[3]; |
| 768 |
|
else |
| 769 |
< |
ray -> rmax = 0; |
| 769 |
> |
ray -> rmax = photonMaxDist; |
| 770 |
|
rayorigin(ray, PRIMARY, NULL, NULL); |
| 771 |
|
|
| 772 |
|
if (!emap -> numSamples) { |
